Adjustable beam form fixing device and construction method

Abstract

The application discloses a kind of adjustable lintel formwork fixing device and construction method, it is related to housing construction technology field, including lintel formwork, and first clamping mechanism and second clamping mechanism clamped in the outside of lintel formwork, by the sliding adjustment component of square steel both sides can drive left connecting rod and right connecting rod synchronous inward movement, to make its bottom rectangular clamping plate fixed clamping in the lower end of side formwork outer wall;By controlling the rotation of second hand wheel to drive the synchronous horizontal movement of two clamping discs on second horizontal screw rod inward, to realize the fixed clamping of the upper end of side formwork outer wall.This application has the advantages of simple structure, easy operation, strong flexibility, longer service life and lower maintenance cost, thereby reducing the overall construction cost, effectively realizing the support and fixation of door and window hole lintel formwork, improving construction efficiency and ensuring the stability of structure.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of house building construction, and particularly relates to an adjustable beam formwork fixing device and a construction method. BACKGROUND

[0002] The main structure of a building usually comprises a primary structure and a secondary structure, wherein the primary structure is a load-bearing structure, and the secondary structure is a non-load-bearing structure, such as a ring beam, a constructional column, etc. A beam is a component commonly used on a door and window hole of a masonry structure building, which is used to bear the weight of the masonry above the top surface of the hole and the load transmitted from the upper floor beam plate. During construction, some window and door holes need to be cast with a concrete beam, and the upper part of the door hole beam usually needs to be masonry. The bottom of the beam must be supported by a beam bottom formwork and other materials. At present, the reinforcing method for the cast-in-place beam of the door and window hole usually adopts a floor type formwork support mode, and a steel pipe or a wooden bar is used to support the formwork of the cast-in-place beam. Such a mode is not stable enough during construction, especially when a large load is borne or when construction vibration occurs, which may cause the formwork to deform or displace, and there is also a construction safety risk, such as formwork collapse or support structure instability. In addition, the traditional formwork fixing device is not flexible, is inconvenient to disassemble, occupies a large space, and is difficult to adapt to door and window holes of different sizes and shapes, thereby limiting the adaptability of construction. Therefore, there is an urgent need for a flexible and convenient adjustable beam formwork fixing device. SUMMARY

[0003] In view of the defects and problems of the existing formwork reinforcing system structure, such as high price, easy deformation, and insecure reinforcement, the application provides an adjustable beam formwork fixing device and a construction method.

[0004] The application adopts the following technical scheme to solve the technical problem: an adjustable beam formwork fixing device, which comprises a beam formwork, and a first clamping mechanism and a second clamping mechanism clamped on the outer side of the beam formwork. The beam formwork comprises a beam bottom formwork and side formworks fixedly installed on the left and right sides of the beam bottom formwork. The first clamping mechanism comprises a square steel, and sliding adjustment assemblies are symmetrically arranged on the left and right sides of the square steel. A left connecting rod and a right connecting rod are respectively inwardly inclinedly connected below the sliding adjustment assemblies. Rectangular clamping plates are respectively fixed to the bottoms of the two connecting rods and oppositely arranged. The second clamping mechanism comprises a second horizontal screw rod, which is transversely sleeved on the middle parts of the left and right connecting rods and has a second hand wheel connected to one end. Two clamping discs are symmetrically sleeved on the second horizontal screw rod between the two connecting rods. The sliding adjustment assemblies on the two sides of the square steel can drive the left and right connecting rods to synchronously move inward, so that the rectangular clamping plates at the bottoms of the connecting rods are fixedly clamped on the lower ends of the outer side walls of the side formworks. The rotation of the second hand wheel can drive the two clamping discs on the second horizontal screw rod to synchronously move inward transversely, so as to achieve the fixed clamping of the upper ends of the outer side walls of the side formworks.

[0005] Further, the first clamping mechanism further comprises channel steels fixedly welded on the left and right sides of the square steel, and a sliding adjusting assembly is arranged in the channel steel, the sliding adjusting assembly comprises a first horizontal screw rod, a sliding block and a first hand wheel, wherein a through hole is formed in the square steel in the horizontal direction, the first horizontal screw rod is sleeved in one side of the channel steel and extends towards the square steel, penetrates through the through hole in the square steel and extends out of the other side of the channel steel, and one end of the first horizontal screw rod is fixedly connected with the first hand wheel.

[0006] Further, the first horizontal screw rod in the channel steel is sleeved with a sliding block, and the bottom of the sliding block is fixedly connected with a left connecting rod and a right connecting rod which are inclined downward, and the free ends of the left connecting rod and the right connecting rod are fixedly welded with a rectangular clamping plate.

[0007] Further, the second horizontal screw rod is sleeved in the middle position close to the left connecting rod and the right connecting rod in the direction parallel to the first horizontal screw rod, and one end is fixedly connected with a second hand wheel; and the threads on the second horizontal screw rod are symmetrically and oppositely arranged.

[0008] Further, the clamping disc is arranged in the gap before the connecting rod and the side formwork, and a guide sleeve is arranged on the left and right side walls of the clamping disc, and the second horizontal screw rod is sleeved in the guide sleeve.

[0009] Further, the clamping disc is further provided with a reverse adjusting mechanism, the reverse adjusting mechanism comprises an adjusting screw rod, a fixed guide sleeve, a limit stop and an adjusting nut, two clamping discs above the guide sleeve are symmetrically provided with through holes, the adjusting screw rod is matched and sleeved in the through holes in the horizontal direction, the adjusting screw rod is symmetrically provided with threads on the rod body and is matched and sleeved with the adjusting nut, and the limit stop is sleeved on the adjusting screw rod between the adjusting nut and the clamping disc.

[0010] Further, an inner nut and an outer nut are sleeved on the second horizontal screw rod on the left and right connecting rods, respectively, the inner nut is symmetrically arranged on the inner side of the connecting rod, and the outer nut is symmetrically arranged on the outer side of the connecting rod.

[0011] The application also provides a construction method of the adjustable beam formwork fixing device.

[0012] S1, placing the beam formwork at the position of the door and window hole, and ensuring that the beam bottom formwork and the side formworks on the two sides are correctly aligned;

[0013] S2, placing the fixing device outside the beam formwork, rotating the first hand wheel clockwise, driving the first horizontal screw rod, making the sliding block horizontally translate in the cavity of the channel steel, and then driving the left connecting rod and the right connecting rod and the rectangular clamping plate at the bottom thereof to approach each other, so as to realize the fixed clamping of the side formwork.

[0014] S3, rotate the second hand wheel clockwise, drive the second horizontal screw rod, make the clamping disc transverse translation in the gap between the connecting rod and the side formwork until contact the side formwork, then screw the adjusting screw, the adjusting nut moves outward until the adjusting nut contacts the limit stop, realize the clamping of the position above the bent cap formwork, and avoid the deformation of the side formwork;

[0015] S4, the end position of the rectangular clamping plate is locked by screwing the outer nut inward, and the end position of the clamping disc can also be locked by screwing the inner nut inward;

[0016] S5, after the above operation is completed, check whether the bent cap formwork is stable, and ensure that there is no looseness or deformation.

[0017] Compared with the prior art, the beneficial effects of the present application are:

[0018] The adjustable bent cap formwork fixing device and construction method provided by the present application can stably support and clamp the bent cap formwork, ensure the stability during construction, reduce the safety risk during construction, improve the construction safety, shorten the construction time through the quick adjustment and clamping function of the device, improve the construction efficiency, and effectively avoid the deformation of the bent cap formwork caused by excessive clamping force through the design of the reverse adjustment mechanism.

[0019] The fixing device provided by the present application has the advantages of simple structure, quick fixing and clamping of the bent cap formwork by construction workers, simple operation, strong flexibility, longer service life and lower maintenance cost compared with traditional steel pipes or wooden bars support, thereby reducing the overall construction cost, effectively realizing the support and fixation of the bent cap formwork of the door and window hole, improving the construction efficiency and ensuring the stability of the structure. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the assembled present application;

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the first clamping mechanism of the present application;

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the second clamping mechanism of the present application;

[0023] Figure 4 It is a schematic diagram of the side view structure of the free state of the present application;

[0024] Figure 5 It is a schematic diagram of the side view structure of the clamping state of the present application.

[0025] In the figure: 1 - beam template, 101 - side template, 102 - beam bottom template, 2 - first clamping mechanism, 201 - square steel, 202 - channel steel, 203 - first horizontal screw rod, 204 - sliding block, 205 - first hand wheel, 3 - second clamping mechanism, 301 - second horizontal screw rod, 302 - clamping disc, 303 - guide sleeve, 304 - second hand wheel, 4 - reverse adjusting mechanism, 401 - adjusting screw rod, 402 - fixed guide sleeve, 403 - limit stop, 404 - adjusting nut, 5 - left connecting rod, 6 - right connecting rod, 7 - rectangular clamping plate, 8 - inner nut, 9 - outer nut. DETAILED DESCRIPTION

[0026] The application is further described below in conjunction with the drawings and examples.

[0027] Example 1

[0028] The embodiment provides an adjustable beam template fixing device, which can be used for supporting and fixing the beam template of a door and window hole, and effectively solves the problems of high structure price, easy variability and insecure reinforcement of the existing template reinforcement system. Figures 1-5 As shown in the figure, the fixing device comprises a beam template 1, a first clamping mechanism 2, a second clamping mechanism 3 and a reverse adjusting mechanism, wherein the beam template 1 has a concave structure, comprising a beam bottom template 102 and side templates 101 fixedly installed on the left and right sides of the beam bottom template, the first clamping mechanism 2 and the second clamping mechanism 3 can be sleeved on the outside of the beam bottom template when in use, thereby achieving the fixed clamping of the beam template.

[0029] Specifically, as shown in Figure 1 and Figure 2 , the first clamping mechanism 2 comprises a square steel 201 and channel steels 202 fixedly welded on the left and right sides of the square steel in the horizontal direction, the channel steels are provided with a sliding adjusting assembly, and the sliding adjusting assembly comprises a first horizontal screw rod 203, a sliding block 204 and a first hand wheel 205, wherein a through hole is formed in the square steel 201 in the transverse direction, the first horizontal screw rod 203 is sleeved in one side of the channel steel and extends towards the square steel, penetrates through the through hole in the square steel and extends outward through the other side of the channel steel.

[0030] As shown in Figure 2 , the first horizontal screw rod 203 in the channel steels 202 is sleeved with a sliding block 204, and the bottom of the sliding block is fixedly connected with a left connecting rod 5 and a right connecting rod 6 (the top of the two connecting rods extends downward from the opening at the bottom of the channel steel) respectively, and the lower free ends of the left connecting rod 5 and the right connecting rod 6 are fixedly welded with a rectangular clamping plate 7 respectively, the two rectangular clamping plates are oppositely arranged and located on the outside of the beam template. And one end of the first horizontal screw rod is fixedly connected with a first hand wheel 205.

[0031] The first clamping mechanism 2 is arranged in this way. By rotating the first hand wheel 205 clockwise, the first horizontal screw rod is driven to rotate, and the left and right sliders are simultaneously driven to move horizontally in the square steel cavity, i.e., to move horizontally towards each other, and the left connecting rod 5 and the right connecting rod 6 are respectively driven to drive the rectangular clamping plate 7 at the bottom of the connecting rod to move relatively, so as to fix and clamp the side wall below the side formwork.

[0032] As shown in Figure 1 and Figure 3 The second clamping mechanism 3 is located between the overpass formwork 1 and the first clamping mechanism. The second clamping mechanism includes a second horizontal screw rod 301, a clamping disc 302, etc. The second horizontal screw rod 301 is arranged in parallel with the first horizontal screw rod and is sleeved at the middle position close to the left connecting rod 5 and the right connecting rod 6. One end is fixedly connected with a second hand wheel 304. By rotating the second hand wheel, the second horizontal screw rod 301 is driven to rotate freely in the connecting rod. Further, the second horizontal screw rod 301 close to the two connecting rods is provided with threads in opposite directions, and the second horizontal screw rod between the left and right connecting rods is also symmetrically sleeved with a clamping disc 302. The two clamping discs are respectively located in the gap before the connecting rod and the side formwork. The disc has a certain thickness, and guide sleeves 303 are respectively arranged on the left and right side walls of the disc. The threads in the guide sleeves are symmetrically and oppositely arranged.

[0033] In this way, when the second hand wheel 304 is driven to rotate clockwise, the second horizontal screw rod is driven to rotate, and the two clamping discs are simultaneously driven to move horizontally towards each other, so as to fix and clamp the side wall above the side formwork. By reversely rotating the second hand wheel 304, the overpass formwork can be released. By driving the first clamping mechanism 2 and the second clamping mechanism 3 respectively, the overpass formwork can be tightly clamped at the upper and lower positions.

[0034] Further, in order to avoid the side formwork of the overpass formwork being bent and deformed inwardly due to excessive clamping force during the driving of the second clamping mechanism to clamp the position above the side formwork (the first clamping mechanism will not have this problem because the beam bottom formwork can provide an outward reaction force for the two side formworks), in order to avoid the side formwork being bent and deformed, the embodiment is provided with a reverse adjusting mechanism 4 on the clamping disc.

[0035] As shown in Figure 3As shown, the reverse adjusting mechanism includes adjusting screw 401, fixed guide sleeve 402, limit stop 403 and adjusting nut 404, wherein two clamping discs above guide sleeve 303 are symmetrically provided with through holes, adjusting screw 401 is matched and sleeved in the through holes in horizontal direction, fixed guide sleeve 402 is arranged on the left and right sides of the clamping discs, adjusting screw 401 is matched and extended from the fixed guide sleeve, and the body of adjusting screw 401 between the two clamping discs is symmetrically provided with threads and matched and sleeved with adjusting nut 404, which includes gasket and nut body.

[0036] Further, limit stop 403 is further sleeved on the adjusting screw between the adjusting nut and the clamping disc, the limit stop is in reverse L-shaped structure, the bottom is close to the inner wall of the side formwork, and the top is fixedly sleeved on the adjusting screw; in this way, the left and right clamping discs can be controlled to move inward until the left end of the fixed guide sleeve inside the clamping disc contacts the right end of the limit stop 403, that is, it can be judged that the clamping discs on both sides have reached the limit position and cannot move forward any more; then, the adjusting nut 404 is screwed to move outward on the adjusting screw until the gasket on the adjusting nut contacts the left end surface of the limit stop 403, so that the clamping of the position above the beam formwork can be realized, and at the same time, the problems such as deformation of the side formwork due to excessive clamping force can be avoided.

[0037] In addition, since the first clamping mechanism 2 and the second clamping mechanism 3 are both driven by the respective hand wheels to rotate the screw to realize the clamping work, in order to avoid the phenomenon of reverse thread, referring to Figure 5 The inner nut 8 and the outer nut 9 are respectively sleeved on the second horizontal screw 301 on the left and right connecting rods, so that when the first hand wheel is rotated to clamp the rectangular clamping plate 7 at the position below the side formwork, the outer nuts 9 on both sides can be inwardly screwed to lock the end position; similarly, when the second hand wheel is rotated to clamp the clamping disc 302 at the corresponding position above the side formwork, the inner nuts 8 on both sides can be inwardly screwed to lock the end position of the clamping disc, so as to further ensure the stability of the clamping of the beam formwork by the fixing device.

[0038] The adjustable beam formwork fixing device provided by the application can quickly clamp and fix the beam formwork, is simple and convenient to operate, has high flexibility, has a longer service life and lower maintenance cost compared with the traditional steel pipe or wood support, thereby reducing the overall construction cost, effectively realizing the support and fixation of the beam formwork of the door and window hole, improving the construction efficiency and ensuring the stability of the structure.

[0039] Example 2

[0040] On the basis of example 1, the application provides a construction method of the adjustable beam formwork fixing device, which specifically includes the following operation steps:

[0041] S1, the lintel template 1 is placed in the position of the door and window opening, and the beam bottom template 102 and the side templates 101 on both sides are aligned correctly;

[0042] S2, the fixing device is placed in a suitable position outside the lintel template (a plurality of fixing devices can be provided according to the length of the lintel template, as shown in Figure 1 The first hand wheel 205 is rotated clockwise to drive the first horizontal screw rod 203, and the sliding block 204 is horizontally translated in the cavity of the channel steel, and then the left connecting rod 5 and the right connecting rod 6 and the rectangular clamping plate 7 at the bottom thereof are brought closer to each other, so as to realize the clamping and fixing of the side templates;

[0043] S3, the second hand wheel 304 is rotated clockwise to drive the second horizontal screw rod 301, and the clamping disc 302 is horizontally translated in the gap between the connecting rod and the side template until it contacts the side template, and then the adjusting screw rod 401 is screwed, and the adjusting nut 404 moves outward until the gasket on the side of the adjusting nut 404 contacts the limit stop 403, so as to clamp the position above the lintel template and avoid deformation of the side template;

[0044] S4, the outer nuts 9 on both sides are screwed inward to lock the end position of the rectangular clamping plate 7, and the inner nuts 8 on both sides can also be screwed inward to lock the end position of the clamping disc 302;

[0045] S5, after all the operations are completed, check whether the lintel template 1 is stable, and ensure that there is no looseness or deformation, and if necessary, fine tuning can be performed to ensure the stability of the lintel template fixing device and the correct position of the lintel template.

[0046] The construction method of the adjustable lintel template fixing device provided in the embodiment can ensure that the fixing device of the application can stably support and clamp the lintel template, and ensure the stability during construction; reduce the safety risk during construction, and improve the construction safety; the quick adjustment and clamping function of the device can shorten the construction time and improve the construction efficiency.

[0047] The above is only a preferred embodiment of the application, and does not limit the application, and any modification, equivalent replacement and improvement made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. An adjustable beam formwork fixing device, comprising a beam formwork (1) and a first clamping mechanism (2) and a second clamping mechanism (3) clamped on the outer side of the beam formwork, the beam formwork comprising a beam bottom formwork (102) and side formworks (101) fixedly installed on the left and right sides of the beam bottom formwork, characterized in that: The first clamping mechanism (2) comprises square steels (201), the left and right sides of the square steels are symmetrically provided with sliding adjusting assemblies, the left connecting rods (5) and the right connecting rods (6) are respectively connected to the sliding adjusting assemblies in a downward and inward inclined manner, the bottom portions of the two connecting rods are respectively fixed with rectangular clamping plates (7), and the two rectangular clamping plates are oppositely arranged. The second clamping mechanism comprises a second horizontal screw rod (301), the second horizontal screw rod (301) is transversely sleeved in the middle portions of the left connecting rod (5) and the right connecting rod (6), one end of the second horizontal screw rod (301) is connected with a second hand wheel (304), and the second horizontal screw rod (301) between the two connecting rods is further symmetrically sleeved with clamping discs (302); the sliding adjusting assemblies on the two sides of the square steel can drive the left connecting rod and the right connecting rod to synchronously move inward, so that the rectangular clamping plates at the bottom portions of the left connecting rod and the right connecting rod are fixedly clamped on the lower end of the outer side wall of the side formwork (101); the two clamping discs (302) on the second horizontal screw rod are synchronously transversely moved inward by controlling the rotation of the second hand wheel, so that the upper end of the outer side wall of the side formwork (101) is fixedly clamped.

2. The adjustable lintel form tieback of claim 1, wherein: The first clamping mechanism (2) further comprises channel steels (202) fixedly welded on the left and right sides of the square steel, the channel steels are provided with sliding adjusting assemblies, the sliding adjusting assemblies comprise a first horizontal screw rod (203), a sliding block (204) and a first hand wheel (205), wherein a through hole is formed in the square steel (201) in a transverse direction, the first horizontal screw rod (203) is sleeved in one channel steel and extends towards the square steel, passes through the through hole in the square steel and extends out of the other channel steel, and one end of the first horizontal screw rod is further fixedly connected with the first hand wheel (205).

3. The adjustable joist form tieback of claim 2, wherein: The first horizontal screw rod (203) in the channel steel (202) is respectively sleeved with the sliding blocks (204), the bottom portions of the sliding blocks are respectively fixedly connected with the left connecting rod (5) and the right connecting rod (6) in a downward and inclined manner, and the lower free ends of the left connecting rod (5) and the right connecting rod (6) are respectively welded with the rectangular clamping plates (7).

4. The adjustable joist form tieback of claim 3, wherein: The second horizontal screw rod (301) is sleeved in the middle portions of the left connecting rod (5) and the right connecting rod (6) in a direction parallel to the first horizontal screw rod, and one end of the second horizontal screw rod is fixedly connected with the second hand wheel (304); the threads on the second horizontal screw rod are oppositely arranged in a symmetrical manner.

5. The adjustable joist form tieback of claim 4, wherein: The clamping discs are respectively located in the gaps between the connecting rods and the side formwork, and are respectively provided with guide sleeves (303) on the left and right side walls thereof, and the second horizontal screw rod is sleeved in the guide sleeves.

6. The adjustable joist form tieback of claim 5, wherein: The clamping discs are further provided with reverse adjusting mechanisms (4), the reverse adjusting mechanisms comprise adjusting screw rods (401), fixed guide sleeves (402), limit stop tables (403) and adjusting nuts (404), wherein the two clamping discs above the guide sleeves (303) are symmetrically provided with through holes, the adjusting screw rods (401) are matched and sleeved in the through holes in a horizontal direction, the adjusting screw rods are symmetrically provided with threads on the rod bodies, and the adjusting nuts (404) are matched and symmetrically sleeved, and the limit stop tables (403) are sleeved on the adjusting screw rods between the adjusting nuts and the clamping discs.

7. The adjustable joist form tieback of claim 6, wherein: The second horizontal screw rods (301) on the left and right sides of the connecting rods are respectively sleeved with inner nuts (8) and outer nuts (9), the inner nuts are symmetrically arranged on the inner sides of the connecting rods, and the outer nuts are symmetrically arranged on the outer sides of the connecting rods.

8. A method of construction of an adjustable joist formwork fixing device, using the adjustable joist formwork fixing device of claim 7, characterised by: The method comprises the following steps: S1, placing the lintel template at the position of the door and window hole, ensuring that the beam bottom template of the concave structure and the side templates on both sides are correctly aligned; S2, placing the fixing device outside the lintel template, rotating the first hand wheel clockwise, driving the first horizontal screw rod, making the sliding block horizontally translate in the cavity of the channel steel, and then driving the left and right connecting rods and the rectangular clamping plates at the bottom thereof to move closer to each other, so as to achieve the fixed clamping of the side templates; S3, rotating the second hand wheel clockwise, driving the second horizontal screw rod, making the clamping disc horizontally translate in the gap between the connecting rods and the side templates until the clamping disc contacts the side templates, then rotating the adjusting screw, moving the adjusting nut outward until the adjusting nut contacts the limit stop, so as to achieve the clamping of the position above the lintel template, and meanwhile avoiding the deformation of the side templates; S4, rotating the outer nuts on both sides inward to lock the end position of the rectangular clamping plate, and similarly, the inner nuts on both sides can also be rotated inward to lock the end position of the clamping disc; S5, after the above operations are completed, checking whether the lintel template is stable, and ensuring that there is no looseness or deformation.

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