Modular formwork support for building

Abstract

The utility model provides a modular formwork support for building, which comprises a bottom plate and a top plate, a plurality of guide telescopic rods close to corners are arranged between the bottom plate and the top plate, the middle part of the top of the bottom plate is connected with a guide stand column in an up-down sliding manner, and the peripheral wall of the guide stand column penetrates through and is rotatably connected with a bidirectional lead screw; a left screw sleeve and a right screw sleeve which are symmetrical relative to the guiding stand column are screwed on the two-way lead screw, and the top and the bottom of the peripheral wall of the left screw sleeve and the top of the peripheral wall of the right screw sleeve are hinged to the opposite sides of the bottom plate and the top plate through supporting arms. According to the utility model, the bidirectional lead screw is arranged between the bottom plate and the top plate, then the left screw sleeve and the right screw sleeve are sleeved on the bidirectional lead screw, and the peripheral walls of the left screw sleeve and the right screw sleeve are hinged with the opposite sides of the bottom plate and the top plate through the supporting arms, so that the lifting of the top plate can be adjusted when the bidirectional lead screw is controlled to rotate; and on the premise that the lifting smoothness of the top plate is guaranteed, the lifting operation of the formwork support is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of building formwork supports, in particular to a modular formwork support for buildings. Background Technique

[0002] A formwork support is a structure that supports building formwork during building construction. However, the disassembly, assembly, and combination between the existing formwork supports are not convenient, the work efficiency during construction is low, and the height of the formwork support is fixed and cannot be adjusted according to actual needs, thus failing to meet the requirements.

[0003] The utility model with the publication number CN217924879U proposes a modular formwork support for buildings, which includes a bottom plate and two adjusting rods. Both ends of the middle part of the top end of the bottom plate are fixedly connected with bottom rods. The bottom ends of the inner walls of the two bottom rods are both fixedly connected with first bearings. The top ends of the two first bearings are both rotatably connected with threaded rods. The tops of the two threaded rods are both threadedly connected with threaded grooves, and the two threaded grooves are respectively arranged at the bottom ends of the two adjusting rods. The top ends of the two adjusting rods are fixedly connected with a top plate. The bottom of the threaded rod is fixedly sleeved with a first bevel gear. The surface of the first bevel gear is meshed with a second bevel gear. The middle part of the second bevel gear is fixedly connected with a rotating shaft. Both sides of the bottom end of the bottom plate are fixedly connected with mounting seats. For the modular formwork support of the utility model, the disassembly and assembly between two modular formwork supports are convenient, the work efficiency of construction is improved, and the height of the formwork support itself can be adjusted, making it more flexible during construction.

[0004] However, the above-mentioned prior art still has the following defects when in use: 1. The lifting of the formwork support is controlled by two adjusting rods between the bottom plate and the top plate, and the lifting of the two adjusting rods is respectively controlled by independent threaded rods, first bevel gears, second bevel gears, and rotating shafts. That is to say, it is necessary to rotate two turntables synchronously to control the lifting of the top plate, which not only takes up manpower but also increases the difficulty of controlling the simultaneous lifting of the two adjusting rods, resulting in poor convenience in adjusting the height of the formwork support. 2. Two formwork supports are connected in a stacked and fastened manner through the clamping grooves opened on one side of two connecting strips and the clamping blocks elastically connected to the mounting seats. However, due to the certain weight of the formwork support and the fact that the clamping blocks on the formwork support can only be inserted into the clamping grooves when the clamping grooves and the clamping blocks are aligned, there is a defect that the resistance and difficulty in aligning the clamping grooves and the clamping blocks are large, thus greatly increasing the difficulty of stacking and docking the two formwork supports.

[0005] Therefore, the utility model provides a modular formwork support for buildings. Content of the Utility Model

[0006] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a modular formwork support for buildings to solve the problems raised in the above background technique. The utility model has the advantages that the resistance to the stacked assembly of multiple formwork supports is small and more rapid, and the difficulty of height adjustment is small and more convenient.

[0007] To achieve the above object, the utility model is realized by the following technical solutions: A modular formwork support for construction, comprising a bottom plate and a top plate. Between the bottom plate and the top plate, there are a number of guiding telescopic rods near the corners. In the middle of the top of the bottom plate, there is a guiding column that is slidably connected up and down. A bidirectional lead screw passes through and is rotatably connected to the outer peripheral wall of the guiding column. On the bidirectional lead screw, there are a left nut and a right nut that are symmetric with respect to the guiding column. The top and bottom of the outer peripheral walls of the left nut and the right nut are respectively hinged to the opposite sides of the bottom plate and the top plate through support arms.

[0008] Furthermore, a positioning column is welded in the middle of the top of the bottom plate. The bottom of the guiding column is provided with a guiding hole that sleeves outside the positioning column. The outer peripheral wall of the guiding column is welded through and provided with a positioning sleeve that sleeves outside the bidirectional lead screw.

[0009] Furthermore, the two ends of the bidirectional lead screw are welded with external hexagonal drive heads.

[0010] Furthermore, on the top of the top plate, there are insertion holes near the corners and a reference hole in the middle. At the bottom of the bottom plate, there are supports near the corners. The supports and the insertion holes are in one-to-one correspondence. The bottom of the support is elastically slidably connected up and down with an insertion rod. The insertion rod and the insertion hole are in plug-in fit. A pin is penetrated through the outer peripheral wall of the insertion rod. In the middle of the bottom of the bottom plate, there is a reference shaft that is elastically slidably connected up and down and is in plug-in fit with the reference hole. The bottoms of the insertion rod and the reference shaft are both provided with rolling elements.

[0011] Furthermore, the bottom of the support is provided with a limit hole that slidably cooperates with the insertion rod. A support spring is arranged in the limit hole. In the middle of the bottom of the bottom plate, there is a connecting sleeve that sleeves on the top of the reference shaft. A support spring is arranged in the connecting sleeve.

[0012] Furthermore, a limit ring is fixedly sleeved on the reference shaft. The outer diameter of the limit ring is larger than the inner diameter of the reference hole.

[0013] Furthermore, the rolling element is one of a ball and a universal wheel.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1. In the utility model, by arranging a bidirectional lead screw between the bottom plate and the top plate, and then sleeving a left nut and a right nut on the bidirectional lead screw, the outer peripheral walls of the left nut and the right nut are respectively hinged to the opposite sides of the bottom plate and the top plate through support arms. Thus, when controlling the rotation of the bidirectional lead screw, the lifting of the top plate can be adjusted. On the premise of ensuring the smoothness of the lifting of the top plate, it has the advantage of making the lifting operation of this formwork support more convenient.

[0016] 2. In the present utility model, a reference hole and insertion holes located on the outer periphery of the reference hole are provided at the top of the top plate. Then, a reference shaft and insertion rods located on the outer periphery of the reference shaft are provided at the bottom of the bottom plate. When two formwork supports are stacked and docked, only one reference shaft needs to be inserted into the reference hole, and then the top formwork support is rotated. At this time, several insertion plates will automatically enter the corresponding insertion holes, which has the advantages of being more labor-saving and convenient for the two formwork supports to be stacked and docked for heightening.

[0017] 3. In the present utility model, rolling elements are provided at the bottoms of the reference shaft and the insertion rods. Under the action of the rolling elements, the formwork support can be moved when not in use, which has the advantage of being more convenient to move the position. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural view of a modular formwork support for construction of the present utility model;

[0019] Figure 2 is Figure 1 a schematic view of the bottom;

[0020] Figure 3 is Figure 1 the front view of;

[0021] In the figure: 1. Bottom plate; 11. Positioning column; 12. Connecting sleeve; 2. Top plate; 21. Insertion hole; 22. Reference hole; 3. Guide telescopic rod; 4. Guide column; 5. Bidirectional lead screw; 51. External hexagonal drive head; 6. Left thread sleeve; 7. Right thread sleeve; 8. Support arm; 9. Positioning sleeve; 101. Support; 1011. Insertion rod; 1012. Limit hole; 102. Pin; 103. Reference shaft; 1031. Limit ring; 104. Rolling element; 105. Support spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Please refer to Figures 1 to 3 , the present utility model provides a technical solution: a modular formwork support for construction, including a bottom plate 1 and a top plate 2. When in use, the bottom plate 1 is placed on the ground or a support platform, and the top of the top plate 2 is used to support the aluminum alloy formwork. Specifically, bolt through holes can be opened on the top plate 2 as required during implementation, so as to facilitate the top plate 2 and the aluminum alloy formwork to be firmly connected by bolts. Between the bottom plate 1 and the top plate 2, several guide telescopic rods 3 are provided near the corners, and the top plate 2 is stably lifted and lowered under the guidance of the guide telescopic rods 3.

[0024] In this technical solution, a guiding column 4 is slidably connected up and down in the middle of the top of the bottom plate 1. The outer peripheral wall of the guiding column 4 penetrates and is rotatably connected with a bidirectional lead screw 5. Preferably, during specific implementation, a positioning column 11 is welded in the middle of the top of the bottom plate 1. A guiding hole sleeving the outside of the positioning column 11 is opened at the bottom of the guiding column 4. A positioning sleeve 9 sleeving the outside of the bidirectional lead screw 5 is welded through the outer peripheral wall of the guiding column 4. The positioning sleeve 9 is rotatably connected with the bidirectional lead screw 5. Left and right thread sleeves 6 and 7 symmetrical to the guiding column 4 are screwed on the bidirectional lead screw 5. The top and bottom of the outer peripheral walls of the left and right thread sleeves 6 and 7 are respectively hinged and connected with the opposite sides of the bottom plate 1 and the top plate 2 through support arms 8. The support arms 8 on the upper and lower sides of the left and right thread sleeves 6 and 7 form a V shape. The thread directions in the left and right thread sleeves 6 and 7 are opposite. Therefore, when controlling the rotation of the bidirectional lead screw 5, the screwing action can be used to push the top plate 2 to move up and down relative to the bottom plate 1 through the support arms 8, realizing the adjustment of the support height of this formwork support.

[0025] Among them, external hexagon drive heads 51 are welded at both ends of the bidirectional lead screw 5. The external hexagon drive heads 51 welded at both ends of this bidirectional lead screw 5 are components for wrench docking. Manually holding a wrench to screw the external hexagon drive head 51 can control the forward and reverse rotation of the bidirectional lead screw 5.

[0026] In this embodiment, jack holes 21 near the corners and a reference hole 22 in the middle are opened at the top of the top plate 2. Among them, both the top plate 2 and the bottom plate 1 are square. The number of jack holes 21 is four. A support 101 near the corners is fixedly connected to the bottom of the bottom plate 1. The supports 101 and the jack holes 21 correspond one by one, and the number of the supports 101 is also four. After the bottom plate 1 is placed on the ground, the bottom of the support 101 contacts the ground. An insertion rod 1011 is elastically slidably connected up and down at the bottom of the support 101. The insertion rod 1011 is inserted and matched with the jack hole 21. In this embodiment, the outer diameter of the insertion rod 1011 is smaller than the inner diameter of the jack hole 21. Among them, a pin 102 is penetrated through the outer peripheral wall of the insertion rod 1011. During specific implementation, a positioning hole inserted and matched with the pin 102 can be opened on the outer peripheral wall of the insertion rod 1011. A reference shaft 103 inserted and matched with the reference hole 22 is elastically slidably connected up and down in the middle of the bottom of the bottom plate 1. When two formwork supports are stacked, after the bottom of the reference shaft 103 is inserted into the reference hole 22, then rotate the upper formwork support. At this time, the four insertion rods 1011 will simultaneously enter the corresponding jack holes 21, making the docking of the two formwork supports more convenient. After the insertion rod 1011 is inserted into the jack hole 21, the pin 102 is correspondingly inserted into the positioning hole on the insertion rod 1011 below the top plate 2 of the lower formwork support, thereby locking the insertion rod 1011 and realizing the tight stacked connection of the two formwork supports.

[0027] Furthermore, the bottom of the insertion rod 1011 and the reference shaft 103 are both provided with a rolling body 104, and the rolling body 104 is one of a ball bearing and a universal wheel. This arrangement can reduce the resistance of the upper formwork frame to rotate on the upper end top plate 2 of the lower formwork frame.

[0028] In this embodiment, a limiting hole 1012 which slides with the insertion rod 1011 is formed at the bottom of the support 101, and a support spring 105 is arranged in the limiting hole 1012. A connecting sleeve 12 which is sleeved on the top of the reference shaft 103 is welded in the middle of the bottom of the base plate 1, and a support spring 105 is arranged in the connecting sleeve 12. When the insertion rod 1011 is squeezed hard, the rolling body 104 thereon will be immersed in the limiting hole 1012. That is to say, when a single formwork frame is not in use, the compression degree of the support spring 105 is small. At this time, the rolling body 104 at the bottom of the insertion rod 1011 is in an exposed state, which is convenient for the formwork frame to move its position.

[0029] Furthermore, a limit ring 1031 is fixedly sleeved on the reference shaft 103, and the outer diameter of the limit ring 1031 is larger than the inner diameter of the reference hole 22. The function of the limit ring 1031 is to block the reference shaft 103 after the reference shaft 103 is inserted into the reference hole 22. When the insertion rod 1011 and the insertion hole 21 are plugged in, the support spring 105 above the reference shaft 103 plays a role in buffering the impact force generated by the overall descent of the upper formwork frame, thereby improving the stability of the docking.

[0030] Working principle: During use, when two formwork frames need to be stacked, one of the formwork frames is manually lifted onto the top plate 2 on the top of the other formwork frame, and then the reference axis 103 on the upper formwork frame is inserted into the reference hole 22 on the top of the lower formwork frame, and then the upper formwork frame is manually twisted. Under the rolling guidance of the rolling body 104, all the plug rods 1011 at the bottom of the upper formwork frame will simultaneously enter the corresponding sockets 21 on the top of the lower formwork frame, and then the latch 102 is used to insert the sockets 21 on the plug rods 1011. At this time, the upper end plug rods 1011 of the upper formwork frame and the top plate 2 on the lower formwork frame are fastened and connected, and the two stacked formwork frames are fastened and connected.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A modular formwork support for construction, comprising a bottom plate (1) and a top plate (2), and a plurality of guiding telescopic rods (3) near the corners between the bottom plate (1) and the top plate (2), characterized in that, A guide column (4) is slidably connected to the middle of the top of the bottom plate (1) in an upward and downward manner, a bidirectional lead screw (5) is passed through the outer peripheral wall of the guide column (4) and is rotatably connected thereto, a left thread sleeve (6) and a right thread sleeve (7) symmetrical with respect to the guide column (4) are screwed on the bidirectional lead screw (5), and the top and bottom of the outer peripheral walls of the left thread sleeve (6) and the right thread sleeve (7) are hingedly connected to the opposite sides of the bottom plate (1) and the top plate (2) through a support arm (8).

2. The modular formwork support for construction according to claim 1, characterized in that: A positioning column (11) is welded in the middle of the top of the bottom plate (1), a guide hole sleeved on the outside of the positioning column (11) is opened at the bottom of the guide column (4), and a positioning sleeve (9) sleeved on the outside of the bidirectional lead screw (5) is welded through the outer wall of the guide column (4).

3. A modular formwork support for construction according to claim 1, characterized in that: External hexagonal drive heads (51) are welded to both ends of the bidirectional lead screw (5).

4. A modular formwork support for construction according to claim 1, characterized in that: The top of the top plate (2) is provided with a plug hole (21) near the corner and a reference hole (22) located in the middle. The bottom of the bottom plate (1) is fixedly connected with a support (101) near the corner. The support (101) corresponds to the plug hole (21) one by one. The bottom of the support (101) is elastically slidably connected with an insertion rod (1011) in an up-and-down manner. The insertion rod (1011) and the plug hole (21) are plug-fitted. A latch pin (102) is provided through the outer peripheral wall of the insertion rod (1011). The middle part of the bottom of the bottom plate (1) is elastically slidably connected with a reference shaft (103) plug-fitted with the reference hole (22). The bottoms of the insertion rod (1011) and the reference shaft (103) are both provided with rolling bodies (104).

5. The modular formwork support for construction according to claim 4, characterized in that: The bottom of the support (101) is provided with a limiting hole (1012) which is slidably matched with the insertion rod (1011), and a support spring (105) is arranged in the limiting hole (1012). A connecting sleeve (12) which is sleeved on the top of the reference shaft (103) is welded in the middle of the bottom of the base plate (1), and a support spring (105) is arranged in the connecting sleeve (12).

6. The modular formwork support for construction according to claim 5, characterized in that: A limiting ring (1031) is fixedly sleeved on the reference shaft (103), and the outer diameter of the limiting ring (1031) is larger than the inner diameter of the reference hole (22).

7. The modular formwork support for construction according to claim 4, characterized in that: The rolling body (104) is one of a ball bearing and a universal wheel.

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