An efficient and stable beam bottom formwork support device

Abstract

The present invention relates to the technical field of construction engineering, and discloses an efficient and stable beam bottom formwork support device, which includes a support assembly. The support assembly includes vertical poles and horizontal bars. The vertical poles are connected by docking fasteners. The docking fastener includes a frustum and a cross bar. The frustum and the cross bar are fixedly connected. An extension assembly is arranged inside the frustum, and the extension assembly is used to expand the support diameter of the frustum. A control assembly is arranged inside the cross bar, and the control assembly is used to control the extension range of the extension assembly. A filling assembly is arranged inside the frustum, and the filling assembly is used to fill the hollow area formed inside the frustum. This solution has the beneficial effect of a design with adjustable dimensions, which can adapt to vertical poles of various sizes, and solves the problem that the dimensions of the existing docking fasteners are fixed and need to be used in combination with vertical poles, resulting in greater limitations.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and particularly to an efficient and stable bottom formwork support device for beams. Background Technique

[0002] The bottom formwork of a beam is a formwork used to support the pouring of concrete at the bottom of a beam in construction, mainly divided into three types: wooden formwork, steel formwork, and plastic formwork. It is necessary to set up a support frame at its bottom mainly because the bottom formwork of the beam needs to bear vertical loads. Setting up a support frame (such as a bracket or a support rod) can effectively disperse the weight and pressure of the beam, enhance the stability and safety of the bottom of the beam, prevent the bottom of the beam from sagging, deforming, or breaking, and ensure the overall stability of the building structure and the construction quality.

[0003] The support frame mainly consists of several vertical poles, horizontal bars, floor bars, diagonal braces, adjustable screw supports, bases, and base plates. The connection between steel pipes is carried out through fasteners. Such fasteners mainly include butt fasteners, swivel fasteners, and right-angle fasteners. The butt fastener ensures that two vertical poles can be firmly and precisely connected to each other to form a continuous and rigid support structure. Through its unique design and fastening mechanism, the butt fastener effectively transmits and disperses the loads between the vertical poles, enhancing the stability and load-bearing capacity of the entire building frame. It is an indispensable connection component in construction engineering and is of great significance for ensuring construction safety and improving building quality.

[0004] However, for different sizes of the bottom formwork of the beam, the sizes of the required support vertical poles are also different. Therefore, the support vertical poles have various different sizes. However, in order to ensure the connection with the vertical poles, the size of the butt fastener is usually matched with the size of the vertical pole. Due to the non-uniformity of the vertical pole sizes, the butt fasteners are also non-uniform, and such butt fasteners have great limitations. Therefore, it does not meet the existing requirements. For this reason, we propose an efficient and stable bottom formwork support device for beams. Summary of the Invention

[0005] The present invention provides an efficient and stable bottom formwork support device for beams, which has the beneficial effect of an adjustable size design and can adapt to vertical poles of various sizes, and solves the problem that the existing butt fasteners have fixed sizes and need to be used in combination with vertical poles, with great limitations mentioned in the above background technique.

[0006] The present invention provides the following technical solution: An efficient and stable bottom formwork support device for beams, including a support assembly. The support assembly includes vertical poles and horizontal bars. There are at least two vertical poles, and the vertical poles are connected by butt fasteners. The butt fastener includes a frustum and a cross bar. The frustum and the cross bar are fixedly connected. An extension assembly is arranged inside the frustum, and the extension assembly is used to expand the support diameter of the frustum and can be applicable to the connection between vertical poles of different diameters.

[0007] A control component is arranged inside the cross bar. The control component is used to control the extension range of the extension component, further improving the connection between the vertical rod and the docking fastener.

[0008] A filling component is arranged inside the frustum. The filling component is used to fill the hollow area formed inside the frustum to ensure the strength of the frustum.

[0009] As an alternative solution of the high-efficiency and stable beam bottom formwork support device described in the present invention, wherein: the intersecting vertical rods and horizontal rods are connected by right-angle fasteners to form a support to ensure the support of the beam bottom formwork.

[0010] As an alternative solution of the high-efficiency and stable beam bottom formwork support device described in the present invention, wherein: the frustum is arranged between two adjacent vertical rods. Two tightening rings are arranged on the side wall of the frustum. The tightening rings are used to fasten the vertical rods on both sides of the frustum. One end of the tightening ring is fixedly connected with a fastening block, and a bolt and a nut are arranged on one side of the fastening block.

[0011] As an alternative solution of the high-efficiency and stable beam bottom formwork support device described in the present invention, wherein: the extension component includes an empty slot and an extension slot opened inside the frustum. An extension block is slidably connected inside the extension slot. One side of the extension block is rotatably connected with a connecting rod, and the other end of the connecting rod is rotatably connected with a driving cylinder. The bottom of the driving cylinder is inserted into a fixed shaft. A first spring is arranged between the driving cylinder and the fixed shaft. The fixed shaft is fixedly connected inside the empty slot, and one end of the driving cylinder extends out of the cross bar.

[0012] As an alternative solution of the high-efficiency and stable beam bottom formwork support device described in the present invention, wherein: the control component includes a control sliding slot opened at the top of the cross bar. A scale rod is fixedly connected inside the control sliding slot. A control slider is slidably connected inside the control sliding slot. An installation slot is opened inside the control slider. A shaft rod is fixedly connected inside the installation slot. A scale block is rotatably connected to the outer side wall of the shaft rod through a torsion spring.

[0013] As an alternative solution of the high-efficiency and stable beam bottom formwork support device described in the present invention, wherein: one side of the control slider is rotatably connected with a rotating connecting rod, and the other end of the rotating connecting rod is rotatably connected to the outer side wall of the driving cylinder.

[0014] As an alternative solution for an efficient and stable beam bottom formwork support device according to the present invention, wherein: a recycling component is arranged inside the control slider, the recycling component includes a recycling chute opened inside the control slider, a recycling rack is slidably connected inside the recycling chute, the recycling rack is meshed with a recycling tooth block, the recycling tooth block is fixedly connected to the outer wall of the scale block, the recycling chute is communicated with the cross driving chute through a pneumatic channel, the cross driving chute is opened at the top of the driving cylinder, a cross driving rod is slidably connected inside the cross driving chute, and the bottom of the cross driving rod is slidably connected inside the cross driving chute through a second spring.

[0015] As an alternative solution for an efficient and stable beam bottom formwork support device according to the present invention, wherein: the pneumatic channel includes a first channel opened inside the control slider, a second channel opened inside the rotating connecting rod, and a third channel opened inside the driving cylinder, the first channel and the second channel are connected through a first hose, and the second channel and the third channel are connected through a second hose.

[0016] As an alternative solution for an efficient and stable beam bottom formwork support device according to the present invention, wherein: the filling component includes a cross groove opened inside the cross rod, a cross sliding plate is slidably connected inside the cross groove, a rubber elastic isolation film is arranged inside the empty groove and the protruding groove, the rubber elastic isolation film is communicated with the cross groove through a filling flow channel, and the filling flow channel is opened between the cross rod and the frustum.

[0017] As an alternative solution for an efficient and stable beam bottom formwork support device according to the present invention, wherein: a rotating component is arranged inside the filling flow channel, the rotating component includes a T-shaped positioning rod fixedly connected to the inner wall of the rubber elastic isolation film, a rotating screw rod is rotatably connected to the top of the T-shaped positioning rod, a plugging groove and a spiral groove are opened at the top of the rotating screw rod, a plugging rod is plugged inside the plugging groove, and a spiral slider is fixedly connected to the side wall of the plugging rod, and the spiral slider is slidably connected inside the spiral groove.

[0018] The present invention has the following beneficial effects:

[0019] 1. For the efficient and stable beam bottom formwork support device, the size of the frustum can be flexibly adjusted through the protruding component to adapt to vertical rods with different diameters. When the user presses the driving cylinder, it is rotationally connected through the connecting rod, and the protruding block slides smoothly under the guidance of the groove, accurately adjusting the diameter of the frustum. This innovation endows the docking fastener with high versatility, can adapt to various vertical rod sizes in real time, and breaks the limitation of specific matching. The protruding component saves costs and time, and improves the flexibility and practicality of the docking fastener.

[0020] 2. For this highly efficient and stable beam bottom formwork support device, when the control component drives the driving cylinder to descend, the rotating connecting rod is used to drive the control slider to slide. Then, the scale block rotates and engages under the push of the scale rod, ensuring the precise stability of the protruding length of the protruding block. The spring is responsible for resetting the driving cylinder and maintaining the engaged state between the scale block and the scale rod, effectively preventing the excessive retraction of the protruding block. The recycling component presses the cross driving rod and uses the pneumatic principle to push the recycling rack to slide, driving the scale block to rotate into the installation groove to achieve the smooth recycling of the protruding block. The two work together to achieve precise control of the protrusion and recycling of the protruding block, ensuring the high efficiency and convenience of the entire system.

[0021] 3. For this highly efficient and stable beam bottom formwork support device, the filling component is designed specifically to enhance the structural strength of the frustum and is achieved by filling materials in the hollow part of the frustum. Through comparative analysis, sand is the optimal choice due to its economy, practicality, good compaction, and fluidity. To prevent sand from affecting the internal moving parts of the frustum, a rubber elastic isolation membrane is set for isolation. This membrane has the ability of elastic deformation and can expand with the movement of the internal components. To ensure uniform filling of sand, a rotating component is designed. Using a spiral structure and a rotating screw rod, when the cross sliding plate descends, it drives the sand to be evenly distributed into the rubber elastic isolation membrane. In addition, by adjusting and bridging the docking fasteners, the uniformity of sand filling can be further optimized to ensure the overall strength of the frustum. Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is a schematic diagram of the structure of the docking fastener of the present invention.

[0024] Figure 3 It is a schematic sectional view of the docking fastener of the present invention.

[0025] Figure 4 It is a schematic diagram of the structure of the protruding component and the filling component of the present invention.

[0026] Figure 5 For the present invention Figure 3 The enlarged schematic diagram of part A.

[0027] Figure 6 For the present invention Figure 3 The enlarged schematic diagram of part B.

[0028] Figure 7 For the present invention Figure 6 The enlarged schematic diagram of part C.

[0029] Figure 8 For the present invention Figure 6 The enlarged schematic diagram of part D.

[0030] Figure 9 For the present invention Figure 5 Schematic enlarged structure diagram at position E in

[0031] Figure 10 Schematic installation diagram of the support component, docking fastener and bottom formwork of the beam for the present invention

[0032] In the figure: 1. Support component; 11. Vertical pole; 12. Horizontal pole; 2. Docking fastener; 21. Frustum; 22. Cross bar; 23. Tightening ring; 24. Fastening block; 25. Bolt; 26. Nut; 3. Extension component; 31. Empty groove; 32. Extension groove; 33. Extension block; 34. Connecting rod; 35. Fixed shaft; 36. Driving cylinder; 37. First spring; 4. Control component; 41. Control chute; 42. Scale rod; 43. Control slider; 44. Shaft rod; 45. Torsion spring; 46. Scale block; 47. Rotating connecting rod; 48. Installation groove; 5. Recycling component; 51. Recycling chute; 52. Recycling rack; 53. Recycling tooth block; 54. Pneumatic channel; 541. First channel; 542. First hose; 543. Second channel; 544. Second hose; 545. Third channel; 55. Cross driving groove; 56. Cross driving rod; 57. Second spring; 6. Filling component; 61. Cross groove; 62. Cross sliding plate; 63. Filling flow channel; 64. Rubber elastic isolation film; 7. Rotating component; 71. T-shaped positioning rod; 72. Rotating screw rod; 73. Insertion slot; 74. Insertion rod; 75. Spiral groove; 76. Spiral slider. Specific embodiments

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0034] Embodiment 1. The purpose of this embodiment is to facilitate the solution of the problem that the size of the existing docking fastener 2 is fixed and needs to be used in matching with the vertical pole 11, with relatively large limitations. Please refer to Figures 1 to 10 , A highly efficient and stable bottom formwork support device for beams, including a support component 1. The support component 1 includes multiple vertical poles 11 and horizontal poles 12. The number of vertical poles 11 is determined according to the area or quantity of the bottom formwork of the beam to be supported on site, and no specific limitation is made here. The vertical poles 11 are connected by a docking fastener 2. The docking fastener 2 includes a frustum 21 and a cross bar 22. The frustum 21 and the cross bar 22 are fixedly connected. An extension component 3 is arranged inside the frustum 21. The extension component 3 is used to expand the support diameter of the frustum 21 and can be applicable to the connection between vertical poles 11 with different diameters.

[0035] The intersecting vertical rods 11 and horizontal rods 12 are connected by right-angle fasteners to form a support, ensuring the support for the beam bottom formwork.

[0036] The frustum 21 is arranged between two adjacent vertical rods 11. Two tightening rings 23 are arranged on the side wall of the frustum 21. The tightening rings 23 are used to fasten the vertical rods 11 on both sides of the frustum 21. One end of the tightening ring 23 is fixedly connected with a fastening block 24, and a bolt 25 and a nut 26 are arranged on one side of the fastening block 24.

[0037] After the worker makes the beam formwork, since the middle of the beam is in a suspended state and concrete needs to be cast in the formwork, in order to ensure the load-bearing effect of the beam formwork, a support assembly 1 needs to be arranged at the bottom of the beam bottom formwork to ensure that the beam formwork can support the weight of the cast-in-place concrete. The support assembly 1 is mainly composed of a connection of the vertical rods 11 and the horizontal rods 12, and the connection between the vertical rods 11 is connected by a butt joint fastener 2. As an existing technology, under the fastening action of the bolt 25 and the nut 26, the two tightening rings 23 arranged on both sides of the frustum 21 are tightened inward, and the two vertical rods 11 installed on the side wall of the frustum 21 are also tightened, thereby ensuring the stable connection between the two vertical rods 11.

[0038] The frustum 21 is the core part of the butt joint fastener 2, and its main function is to connect two vertical rods 11. Through the matching of its shape and size with the inner diameter of the vertical rod 11, the frustum 21 can be tightly inserted into the vertical rod 11, thereby realizing the stable connection between the two vertical rods 11. This connection not only ensures the integrity of the structure but also improves the overall load-bearing capacity.

[0039] The extending assembly 3 includes an empty slot 31 and an extending slot 32 opened in the frustum 21. An extending block 33 is slidably connected in the extending slot 32. One side of the extending block 33 is rotatably connected with a connecting rod 34, the other end of the connecting rod 34 is rotatably connected with a driving cylinder 36, the bottom of the driving cylinder 36 is inserted into a fixed shaft 35, a first spring 37 is arranged between the driving cylinder 36 and the fixed shaft 35, the fixed shaft 35 is fixedly connected in the empty slot 31, and one end of the driving cylinder 36 extends out of the cross rod 22.

[0040] The design of the extending assembly 3 is aimed at flexibly adjusting the outer dimension of the frustum 21 to adapt to vertical rods 11 with different diameters. The frustum 21, as the core component, is responsible for bearing and transmitting the load from the vertical rods 11, and the vertical rods 11 are respectively arranged on the upper and lower surfaces of the frustum 21.

[0041] In actual operation, the user only needs to simply press the driving cylinder 36 to make it slide downward. Through the ingenious rotational connection of the connecting rod 34, the protruding block 33 can slide outward under the guidance of the protruding groove 32. This design ensures that the protruding block 33 can move smoothly along the preset direction, so as to accurately adjust the diameter of the frustum 21 according to the actual size of the vertical rod 11.

[0042] The two ends of the connecting rod 34 are connected to the protruding block 33 and the driving cylinder 36 through a rotating block. The rotating block is mainly connected by a base and a shaft. This connection method is simple and convenient (this connection method is prior art and will not be described in detail here).

[0043] This innovative design endows the docking fastener 2 with unprecedented versatility. Regardless of the diameter of the vertical rod 11, the frustum 21 can be adjusted in real time during installation to ensure a perfect fit. This characteristic effectively solves the limitation of the existing docking fastener 2 in the prior art, that is, it needs to be used in combination with a vertical rod 11 of a specific size.

[0044] Through the ingenious design of the protruding component 3, the user no longer needs to prepare multiple docking fasteners 2 for vertical rods 11 of different sizes, which greatly saves costs and time. At the same time, this design also improves the flexibility and practicability of the docking fastener 2, enabling it to be widely used in various construction and engineering fields.

[0045] Exemplarily: The vertical rod 11 and the docking fastener 2 are reusable components. During their use, wear and other situations often occur. During the connection process of the vertical rod 11 and the docking fastener 2, the inner wall of the vertical rod 11 is always in contact with the outer wall of the inner frustum 21 of the docking fastener 2 and the inner wall of the tightening ring 23. And these contact surfaces serve as load transfer surfaces. After long-term use, the diameters of these parts will shrink due to wear. Through the protruding design of the protruding block 33 in this solution, during the use of the docking fastener 2, it can be adjusted in real time according to the change of the inner diameter of the vertical rod 11, further ensuring that the connection between the inner wall of the vertical rod 11 and the docking fastener 2 is more stable, avoiding the unstable connection situation caused by wear of the vertical rod 11 and the docking fastener 2, and further improving the stability effect of the support component 1 on the beam bottom formwork.

[0046] Embodiment 2. The purpose of this embodiment is to facilitate the solution of the problem that the protruding length of the protruding block 33 needs to be set with different limits according to the different sizes of the vertical rod 11. This embodiment is an explanatory description based on Embodiment 1. Specifically, please refer to Figures 1 to 10 There is a control component 4 arranged inside the cross bar 22. The control component 4 is used to control the protruding range of the protruding component 3, further improving the connection between the vertical rod 11 and the docking fastener 2.

[0047] The control component 4 includes a control chute 41 opened at the top of the cross bar 22. A scale rod 42 is fixedly connected in the control chute 41. A control slider 43 is slidably connected in the control chute 41. An installation groove 48 is opened in the control slider 43. A shaft rod 44 is fixedly connected in the installation groove 48. A scale block 46 is rotatably connected to the outer side wall of the shaft rod 44 through a torsion spring 45.

[0048] One side of the control slider 43 is rotatably connected with a rotating connecting rod 47, and the other end of the rotating connecting rod 47 is rotatably connected to the outer side wall of the driving cylinder 36.

[0049] The control component 4 is designed specifically for adjusting the extending length of the extending block 33. It can be precisely adjusted and fixed according to the inner diameter of the vertical rod 11. When the driving cylinder 36 slowly descends, through the ingenious connection of the rotating connecting rod 47, the control slider 43 will slide smoothly to both sides (as Figure 7 shown, it slides to the left). At this time, the scale block 46 inside the control slider 43 will rotate downward under the push of the scale rod 42 until it slides to another empty position, and then bounce off under the elastic force of the torsion spring 45 and firmly get stuck in the gap between the scale rods 42. The first spring 37 is responsible for the upward reset of the driving cylinder 36. At the same time, due to the engagement of the scale block 46 and the scale rod 42, the scale block 46 is always pressed against one side of the scale rod 42 under the push of the first spring 37. This ensures the stability of the extending distance of the extending block 33 and effectively avoids the situation of excessive retraction, thus fully demonstrating the limiting effect of the control component 4.

[0050] A recovery component 5 is arranged in the control slider 43. The recovery component 5 includes a recovery chute 51 opened in the control slider 43. A recovery rack 52 is slidably connected in the recovery chute 51. The recovery rack 52 is meshed with a recovery tooth block 53. The recovery tooth block 53 is fixedly connected to the outer wall of the scale block 46. The recovery chute 51 is communicated with a cross driving groove 55 through a pneumatic channel 54. The cross driving groove 55 is opened at the top of the driving cylinder 36. A cross driving rod 56 is slidably connected in the cross driving groove 55. The bottom of the cross driving rod 56 is slidably connected in the cross driving groove 55 through a second spring 57.

[0051] The pneumatic channel 54 includes a first channel 541 opened in the control slider 43, a second channel 543 opened in the rotating connecting rod 47, and a third channel 545 opened in the driving cylinder 36. The first channel 541 and the second channel 543 are connected through a first hose 542, and the second channel 543 and the third channel 545 are connected through a second hose 544.

[0052] The design of the recovery component 5 focuses on controlling the rotation direction of the scale block 46 so as to smoothly recover the extended block 33. During the disassembly process, the user only needs to gently press the cross drive rod 56 to squeeze the gas at the bottom of the cross drive groove 55. This gas is conducted through the pneumatic channel 54 to push the recovery rack 52 to slide, thereby driving the scale block 46 equipped with the recovery tooth block 53 to rotate. As the scale block 46 rotates into the installation groove 48, the drive cylinder 36 slowly rises under the elastic force of the first spring 37, thereby driving the control slider 43 and the extended block 33 to reset. This ingenious design ensures the smooth disassembly of the docking fastener 2. The whole process is both efficient and convenient. Through the coordinated work of the control component 4 and the recovery component 5, the whole system realizes the precise control of the extension and recovery of the extended block 33.

[0053] Embodiment 3. The purpose of this embodiment is to facilitate the solution of the problem that after the extended block 33 extends and the notch formed by the installation of the extension component 3 reduces the compressive strength of the frustum 21. This embodiment is an explanatory description based on Embodiment 2. Specifically, please refer to Figures 1 to 10 , a filling component 6 is arranged in the frustum 21. The filling component 6 is used to fill the hollow area formed in the frustum 21 to ensure the strength of the frustum 21.

[0054] The filling component 6 includes a cross groove 61 opened in the cross rod 22. A cross sliding plate 62 is slidably connected in the cross groove 61. Rubber elastic isolation membranes 64 are arranged in the empty groove 31 and the extension groove 32. The rubber elastic isolation membranes 64 are communicated with the cross groove 61 through filling flow channels 63. The filling flow channels 63 are opened between the cross rod 22 and the frustum 21.

[0055] The design of the filling component 6 is used to fill the hollow part in the frustum 21, thereby ensuring the overall strength of the frustum 21. By filling materials in the hollow part of the frustum 21, the structural strength of the frustum 21 is improved. In terms of the selection of filling materials, in order to ensure practicability and economy, for the filling of the hollow part in the frustum 21, the selection of filling materials is analyzed through the following comparison:

[0056] Metal particles: Although they have high compressive strength, they have high costs and large weights, which may have an adverse impact on the overall performance of the disc.

[0057] Polystyrene foam and polyurethane foam: Their compressive strengths are relatively low, and they may not be able to meet application scenarios with high strength requirements.

[0058] Plastic particles: Although they have a certain compressive strength, their costs may be higher than those of sand, and the recycling process may be relatively complex.

[0059] Concrete: Although it has high compressive strength, it is very difficult to replace or recycle once it is poured, and its flexibility is poor.

[0060] Rubber particles: mainly used to improve seismic performance, with relatively low compressive strength and possibly higher cost than sand.

[0061] Using sand is the optimal choice. Economically, sand is a common building material with a wide source and relatively low cost. Compared with other filling materials (such as metal particles, polystyrene foam, polyurethane foam, plastic particles, etc.), the procurement cost of sand is usually lower. In terms of practicality, sand has good compaction and fluidity, can effectively disperse pressure, and improve the compressive strength of the disc. Through appropriate compaction treatment, the compressive strength of sand can be further improved. Sand has strong environmental adaptability and will not undergo significant performance changes due to changes in external conditions such as temperature and humidity.

[0062] Due to the fluidity of sand, in order to prevent some sand from getting stuck in the internal moving parts when the sand enters the hollow area of the frustum 21, resulting in the inability of the internal moving parts to move, a rubber elastic isolation membrane 64 is provided in the hollow area of the frustum 21. The rubber elastic isolation membrane 64 has an isolation function and the ability of elastic deformation. Therefore, it can expand as the protruding block 33 in the frustum 21 protrudes. And the expanded space in the frustum 21 needs to be filled with new sand. Therefore, a cross groove 61 is provided in the cross bar 22, and sand is also filled in the cross groove 61. And as the driving cylinder 36 descends, the cross sliding plate 62 fixedly connected to the side wall of the driving cylinder 36 slides downward synchronously and squeezes the sand in the cross groove 61, driving the sand to enter the rubber elastic isolation membrane 64 in the frustum 21 through the filling flow channel 63. Under the action of the rotating assembly 7, the sand can be evenly filled in the rubber elastic isolation membrane 64, thereby ensuring the stability of the internal structure of the frustum 21.

[0063] A rotating assembly 7 is provided in the filling flow channel 63. The rotating assembly 7 includes a T-shaped positioning rod 71 fixedly connected to the inner wall of the rubber elastic isolation membrane 64. The top of the T-shaped positioning rod 71 is rotatably connected to a rotating screw rod 72. The top of the rotating screw rod 72 is provided with a plugging groove 73 and a spiral groove 75. A plugging rod 74 is plugged in the plugging groove 73. The side wall of the plugging rod 74 is fixedly connected with a spiral slider 76. The spiral slider 76 is slidably connected in the spiral groove 75.

[0064] The design of the rotating component 7 is used to ensure the uniformity of the sand entering the rubber elastic isolation membrane 64. During the downward movement of the cross sliding plate 62, the insertion rod 74 slides downward synchronously in the insertion slot 73. Since there are a spiral slider 76 and a spiral groove 75 between the insertion rod 74 and the rotating screw rod 72, the rotating screw rod 72 rotates during the downward movement of the insertion rod 74. Through the rotation of the rotating screw rod 72, the sand can move along with the spiral blades on the side wall of the rotating screw rod 72. Through this design, it is ensured that the sand located in the cross groove 61 can smoothly enter the rubber elastic isolation membrane 64. At the same time, the spiral design of the rotating screw rod 72 can evenly transport the sand to each part of the rubber elastic isolation membrane 64. In order to further ensure the uniformity of the sand, the user can bridge and connect the docking fastener 2 after the adjustment, so that the sand inside is more evenly filled in the rubber elastic isolation membrane 64, thereby ensuring the overall strength of the frustum 21 and the supporting strength of the supporting component 1 for the beam bottom formwork.

[0065] During recycling, due to the elastic design of the rubber elastic isolation membrane 64 and the reverse rotation of the rotating screw rod 72, the sand can be transported upward again for the next filling.

[0066] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to this process, method, article or device.

[0067] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An efficient and stable beam bottom formwork support device, comprising a support assembly (1), wherein the support assembly (1) comprises a vertical rod (11) and a horizontal rod (12), wherein at least two vertical rods (11) are provided, and wherein: The vertically adjacent upright poles (11) are connected via a butt fastener (2), the butt fastener (2) comprising a truncated table (21) and a cross rod (22), the truncated table (21) and the cross rod (22) being fixedly connected, a protruding component (3) being arranged inside the truncated table (21), the protruding component (3) being used to expand the supporting diameter of the truncated table (21); The extending assembly (3) comprises an empty slot (31) and an extending slot (32) provided in the truncated table (21); a extending block (33) is slidably connected in the extending slot (32); a connecting rod (34) is rotatably connected to one side of the extending block (33); a driving cylinder (36) is rotatably connected to the other end of the connecting rod (34); a bottom of the driving cylinder (36) is inserted into a fixed shaft (35); a first spring (37) is provided between the driving cylinder (36) and the fixed shaft (35); the fixed shaft (35) is fixedly connected in the empty slot (31); and one end of the driving cylinder (36) extends out of the cross rod (22); A control component (4) is arranged inside the cross rod (22), and the control component (4) is used to control the extension range of the extension component (3); The control assembly (4) comprises a control slot (41) provided at the top of the cross rod (22), a scale rod (42) being fixedly connected in the control slot (41), a control slider (43) being slidably connected in the control slot (41), a mounting slot (48) being provided in the control slider (43), a shaft rod (44) being fixedly connected in the mounting slot (48), and a scale block (46) being rotatably connected to an outer wall of the shaft rod (44) via a torsion spring (45); A filling component (6) is arranged in the truncated cone (21), and the filling component (6) is used to fill a hollow area formed in the truncated cone (21).

2. The efficient and stable beam bottom formwork support device according to claim 1 is characterized in that: The intersecting vertical rods (11) and horizontal rods (12) are connected via right-angle fasteners to form a bracket, thereby ensuring support for the beam bottom formwork.

3. The efficient and stable beam bottom formwork support device according to claim 1 is characterized in that: The truncated platform (21) is arranged between two adjacent upright poles (11), and the side wall of the truncated platform (21) is provided with two clamping rings (23), the clamping rings (23) are used to clamp the upright poles (11) on both sides of the truncated platform (21), one end of the clamping ring (23) is fixedly connected to a clamping block (24), and one side of the clamping block (24) is provided with a bolt (25) and a nut (26).

4. The efficient and stable beam bottom formwork support device according to claim 1 is characterized in that: One side of the control slider (43) is rotatably connected to a rotating connecting rod (47), and the other end of the rotating connecting rod (47) is rotatably connected to the outer side wall of the driving cylinder (36).

5. The efficient and stable beam bottom formwork support device according to claim 4 is characterized in that: A recovery component (5) is arranged in the control slider (43), and the recovery component (5) comprises a recovery chute (51) provided in the control slider (43), a recovery rack (52) being slidably connected in the recovery chute (51), a recovery rack (52) being meshingly connected with a recovery tooth block (53), and the recovery tooth block (53) being fixedly connected to the outer wall of the scale block (46), the recovery chute (51) being connected to a cross drive groove (55) through a pneumatic channel (54), the cross drive groove (55) being provided at the top of the drive cylinder (36), a cross drive rod (56) being slidably connected in the cross drive groove (55), and the bottom of the cross drive rod (56) being slidably connected in the cross drive groove (55) through a No. 2 spring (57).

6. The efficient and stable beam bottom formwork support device according to claim 5 is characterized in that: The pneumatic channel (54) comprises a first channel (541) provided in the control slider (43), a second channel (543) provided in the rotating connecting rod (47), and a third channel (545) provided in the driving cylinder (36); the first channel (541) and the second channel (543) are connected via a first hose (542), and the second channel (543) and the third channel (545) are connected via a second hose (544).

7. The efficient and stable beam bottom formwork support device according to claim 1 is characterized in that: The filling assembly (6) comprises a cross groove (61) provided in the cross rod (22), a cross sliding plate (62) being slidably connected in the cross groove (61), a rubber elastic isolation membrane (64) being provided in the empty groove (31) and the extended groove (32), the rubber elastic isolation membrane (64) being connected to the cross groove (61) via a filling flow channel (63), and the filling flow channel (63) being provided between the cross rod (22) and the truncated table (21).

8. The efficient and stable beam bottom formwork support device according to claim 7 is characterized in that: A rotating assembly (7) is arranged in the filling flow channel (63), and the rotating assembly (7) comprises a T-shaped positioning rod (71) fixedly connected to the inner wall of the rubber elastic isolation membrane (64); the top of the T-shaped positioning rod (71) is rotatably connected to a rotating spiral rod (72); the top of the rotating spiral rod (72) is provided with a plug-in groove (73) and a spiral groove (75); the plug-in groove (73) is plugged with a plug-in rod (74); the side wall of the plug-in rod (74) is fixedly connected to a spiral slider (76); the spiral slider (76) is slidably connected in the spiral groove (75).

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