Adjustable formwork supporting frame for constructional engineering and construction method

Abstract

The invention discloses a building engineering adjustable formwork supporting frame and a construction method, and relates to the technical field of building construction, and the building engineering adjustable formwork supporting frame comprises a transverse supporting rod body, a vertical supporting rod body and a hydraulic pump; the length of the transverse supporting rod body can be adjusted; the vertical supporting rod body comprises a hollow stand column with the top open, a bottom supporting plate is vertically and fixedly connected to the bottom end of the stand column, a hydraulic cylinder is installed in an inner cavity of the stand column, and a limiting clamping jaw is fixedly installed at the top end of an output shaft of the hydraulic cylinder. The hydraulic pump comprises a pump body and a hydraulic hose connected and communicated with the pump body, and the hydraulic hose is detachably connected with the hydraulic cylinder. The vertical supporting rod body applies longitudinal supporting force to the formwork, so that the formwork is reinforced; the hydraulic pump is used for driving the vertical supporting rod body to abut against the bottom supporting frame, and therefore indirect supporting of the formwork is achieved. Hydraulic driving is adopted, excellent compatibility is achieved for the height of a formwork, compared with a traditional fastener type and disc opening type formwork supporting frame body, a more convenient assembling and disassembling mode is achieved, and the construction efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to an adjustable formwork support frame for building engineering and a construction method. Background Art

[0002] During the construction process, building formwork is usually arranged on site and reinforced with a supporting structure, and then concrete is poured in the cavity surrounded by the formwork to form concrete components.

[0003] In traditional technology, the supporting structure usually adopts a formwork frame, such as a fastener-type formwork frame, a disc-type formwork frame, etc., and its loading and unloading steps are very cumbersome, wasting a lot of manpower and material resources. Summary of the invention

[0004] In order to overcome the problem of "the traditional fastener-type and disc-type formwork frames are complicated to load and unload" existing in the above-mentioned background technology, the present invention provides an adjustable formwork support frame and a construction method for construction projects.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: an adjustable formwork support frame for construction projects, comprising a transverse support rod body, a vertical support rod body and a hydraulic pump; the transverse support rod body is vertically arranged and detachably connected to the vertical support rod body; vertical support rod bodies are respectively arranged at both ends of the transverse support rod body; the length of the transverse support rod body can be adjusted; the vertical support rod body comprises a hollow column with an open top, a bottom support plate is vertically fixedly connected to the bottom end of the column, a hydraulic cylinder is installed in the inner cavity of the column, and the output shaft of the hydraulic cylinder extends out from the opening at the top end of the column; a limiting claw is fixedly installed on the top end of the output shaft; the hydraulic pump comprises a pump body and a hydraulic hose connected and communicated with the pump body, and the hydraulic hose is detachably connected to the hydraulic cylinder.

[0006] As a further optimization scheme of the present invention, a locking valve is arranged at the bottom end of the outer shell of the hydraulic cylinder, and the locking valve is connected with the inner cavity of the hydraulic cylinder; the locking valve is inserted into the first through hole at the bottom end of the side wall of the column; the hydraulic hose is detachably connected to the locking valve.

[0007] As a further optimization solution of the present invention, the limiting claw is a U-shaped plate structure.

[0008] As a further optimization solution of the present invention, the cross brace rod body includes an adjusting screw and an adjusting sleeve arranged at the end of the adjusting screw; the adjusting screw and the adjusting sleeve are adjustably connected via a thread.

[0009] As a further optimization solution of the present invention, a collar is provided at the end of the adjusting sleeve away from the adjusting screw, and the collar is detachably connected to the column.

[0010] As a further optimization scheme of the present invention, the collar includes a first arc plate, a second arc plate, a third arc plate and a first bolt; the adjustment sleeve is connected to the middle part of the first arc plate and is arranged in a Y shape; the second arc plate is rotatably connected to one end of the first arc plate through a first hinge shaft, and the third arc plate is rotatably connected to the other end of the first arc plate through a second hinge shaft; the second arc plate and the third arc plate are detachably connected by a first bolt.

[0011] As a further optimization solution of the present invention, the cross-section of the first arc plate is in the shape of a 1 / 2 arc; the cross-section of the second arc plate is in the shape of a 1 / 4 arc; and the cross-section of the third arc plate is in the shape of a 1 / 4 arc.

[0012] As a further optimization scheme of the present invention, the second arc plate is provided with a first extending protrusion at one end away from the first arc plate, and the first extending protrusion is provided with a first socket; the third arc plate is provided with a second extending protrusion at one end away from the first arc plate, and the second extending protrusion is provided with a first screw hole adapted to the first socket; the first bolt is adapted to be inserted into the first socket and adapted to be screwed into the first screw hole.

[0013] As a further optimization scheme of the present invention, a first protrusion is provided at one end of the first arc plate close to the second arc plate, and the first protrusion is provided with a second screw hole; a second protrusion is provided at one end of the second arc plate close to the first arc plate, and the second protrusion is provided with a second socket adapted to the second screw hole; a third protrusion is provided at one end of the first arc plate close to the third arc plate, and the third protrusion is provided with a third screw hole; a fourth protrusion is provided at one end of the third arc plate close to the first arc plate, and the fourth protrusion is provided with a third socket adapted to the third screw hole; the ring also includes a second bolt and a third bolt; the second bolt is adapted to be inserted into the second socket and adapted to be screwed into the second screw hole; the third bolt is adapted to be inserted into the third socket and adapted to be screwed into the third screw hole; the second screw hole and the second socket are both arranged on the inner side of the first hinge shaft; the third screw hole and the third socket are both arranged on the inner side of the second hinge shaft.

[0014] The construction method of the adjustable formwork support frame for construction engineering comprises the following steps: S1, installing the vertical support rods; S2, connecting the adjacent vertical support rods using the horizontal support rods.

[0015] Step S1 further includes the following steps: S11, placing the vertical support rod body upright under the formwork; S12, connecting the hydraulic hose to the locking valve, so that the hydraulic pump drives the output shaft of the hydraulic cylinder to extend until the limiting claw presses against the bottom support frame on the lower surface of the formwork; S13, connecting the bottom support plate to the ground through expansion bolts; S14, removing the hydraulic hose from the locking valve.

[0016] Step S2 further includes the following steps: S21, connecting the collar at one end of the cross brace rod to any one of the adjacent vertical brace rods; S22, rotating the adjusting screw and / or the collar to make the length of the cross brace rod adapt to the spacing between the adjacent vertical brace rods; S23, connecting the collar at the other end of the cross brace rod to another of the adjacent vertical brace rods.

[0017] In step S21 and step S23, the connection between the collar and the support rod body includes the following steps respectively: A1, removing the first bolt, the second bolt and the third bolt on the collar; A2, opening the second arc plate and the third arc plate, so that the inner wall of the first arc plate fits with the outer wall of the column; A3, fastening the second arc plate and the third arc plate, so that the inner wall of the second arc plate and the inner wall of the third arc plate fit with the outer wall of the column respectively; A4, inserting the first bolt into the first socket and tightening it with the first screw hole; A5, inserting the second bolt into the second socket and tightening it with the second screw hole, inserting the third bolt into the third socket and tightening it with the third screw hole.

[0018] In summary, the present invention has at least one of the following benefits: (1) The present invention has a simple structure and reliable functions. The vertical support rods exert longitudinal support force on the formwork, thereby reinforcing the formwork; the hydraulic pump is used to drive the vertical support rods to abut against the bottom support frame, thereby indirectly supporting the formwork. The present invention adopts hydraulic drive and has excellent compatibility with different heights of different formworks. Compared with traditional fastener-type and disc-type formwork frames, it has a more convenient loading and unloading form, improving construction efficiency.

[0019] (2) The horizontal brace rod body is used to connect adjacent vertical brace rod bodies, so that a plurality of vertical brace rod bodies form a whole, thereby improving the compactness of the structure of the present invention and further improving the load-bearing capacity.

[0020] (3) The second arc plate and the third arc plate are rotatably connected to the first arc plate respectively, and the first bolt, the second bolt and the third bolt are used to lock the collar, thereby realizing convenient assembly and disassembly of the horizontal support rod body and the vertical support rod body.

[0021] (4) The first arc plate and the second arc plate are both arc-shaped, and the second screw hole and the second plug hole are arranged on the inner side of the first hinge shaft. The first arc plate can provide more physical support structure for the second screw hole, and the second arc plate can provide more physical support structure for the second plug hole, so that the second screw hole and the second plug hole have as long a length as possible to increase the contact area and locking force between the second screw hole, the second plug hole and the second bolt, and avoid the first arc plate and the second arc plate from being spread apart when the vertical support rod has a tilting tendency, thereby ensuring construction safety. Similarly, the third screw hole and the third plug hole are arranged on the inner side of the second hinge shaft to increase the contact area and locking force between the third screw hole, the third plug hole and the third bolt, and avoid the first arc plate and the third arc plate from being spread apart when the vertical support rod has a tilting tendency, thereby ensuring construction safety.

[0022] (5) The limiting claw includes a bottom plate, a pad, a bottom column and a fourth bolt; the bottom plate is a U-shaped plate structure; there are multiple pads and different pads have different thicknesses H, which are used to adapt to the widths of different main keels / secondary keels in different projects, have excellent compatibility, and realize the reuse of the present invention, improve material turnover rate, and reduce costs.

[0023] (6) The position where the gap between the two pads is the widest is clamped on the surface of the main keel or the secondary keel, and then the vertical support rod body is rotated to conveniently clamp the position where the gap between the two pads is the narrowest on the surface of the main keel or the secondary keel, thereby achieving convenient and stable clamping.

[0024] (7) Place the narrowest gap between the two pads directly under the concrete block, then clamp the widest gap between the two pads on the surface of the main keel or secondary keel, and then lift the vertical support rod. The cutting force of the pads can be used to shovel off the concrete blocks adhering to the surface of the main keel or secondary keel, so as to facilitate the stable clamping of the positioning claws and the main keel / secondary keel at the later stage, thereby improving construction safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present application is further described below with reference to the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the cross brace rod structure; Figure 3 It is a schematic diagram of the structure of the vertical support rod; Figure 4 Schematic diagram of the ring structure; Figure 5 It is a schematic diagram of the structure of the second arc plate and the third arc plate in the opened state; Figure 6 It is a schematic diagram of the installation position of the second bolt and the third bolt and the collar structure; Figure 7It is a top view schematic diagram of the layout state during the construction process of the present invention; Figure 8 It is a schematic top view of the structure of the limiting claw.

[0026] Description of reference numerals: In the figure, 1. cross brace rod; 11. adjusting screw; 111. rotating part; 112. inserting hole; 12. adjusting sleeve; 121. collar; 1211. first arc plate; 12111. first protrusion; 12112. second screw hole; 12113. third protrusion; 12114. third screw hole; 1212. second arc plate; 12121. first extension protrusion; 12122. first inserting hole; 12123. second protrusion; 12134. second inserting hole; 1213. third arc plate; 12131. second extension protrusion; 12132. first screw hole; 12133. fourth protrusion; 12134. third inserting hole; 1214. first bolt; 1215. second bolt; 1216. third bolt; 2. Support rod body; 21. Support column; 211. Limiting ring; 22. Bottom support plate; 23. Output shaft; 24. Limiting claw; 241. Bottom plate; 2411. Second through hole; 242. Backing plate; 2421. Second screw hole; 243. Bottom column; 25. Locking valve; 3. Hydraulic pump; 31. Hydraulic hose; 4. Formwork; 41. Bottom support frame; 411. Main keel; 412. Secondary keel. DETAILED DESCRIPTION

[0027] Based on the above structural features of the present application, the implementation methods of the present application are further described: Reference Figure 1-2 The present embodiment provides an adjustable formwork 4 support frame for construction engineering, comprising a horizontal support rod body 1, a vertical support rod body 2 and a hydraulic pump 3. The horizontal support rod body 1 is used to connect the vertical support rod body 2 into a whole, thereby improving the structural compactness and load-bearing capacity of the present invention, and avoiding the problem of support failure caused by the vertical support rod body 2 tipping over. The hydraulic pump 3 is used to adjust the length of the vertical support rod body 2, so as to stably support the formwork 4 of different heights in different projects.

[0028] Reference Figure 1 to Figure 3 , the horizontal support rod body 1 and the vertical support rod body 2 are vertically arranged and detachably connected. A single construction engineering adjustable formwork 4 support frame includes a horizontal support rod body 1 and two vertical support rod bodies 2; in the working state, a horizontal support rod body 1 and two vertical support rod bodies 2 are connected in an H shape. The two ends of the horizontal support rod body 1 are respectively vertically arranged with vertical support rod bodies 2. Figure 1 and Figure 7During the construction process, several horizontal support rods 1 and several vertical support rods 2 are installed to form several adjustable formwork 4 support frame structures for construction projects to form a tight and firm support network, further exerting sufficient support force on the formwork 4 to prevent the formwork 4 from collapsing.

[0029] Reference Figure 1 and Figure 2 The length of the cross brace rod 1 can be adjusted to match the spacing between different vertical brace rods 2, thereby improving the compatibility of the present invention.

[0030] Reference Figure 1 and Figure 3 The support rod body 2 includes a hollow column 21 with an opening at the top, a bottom support plate 22 is vertically fixedly connected to the bottom end of the column 21, and a hydraulic cylinder is installed in the inner cavity of the column 21. The hydraulic cylinder is a columnar piston hydraulic cylinder. The hydraulic cylinder includes an outer shell and an output shaft 23 arranged in the inner cavity of the outer shell. The output shaft 23 of the hydraulic cylinder extends out from the opening at the top end of the column 21; a limit claw 24 is fixedly installed at the top end of the output shaft 23 (for example, fixedly installed by bolts). The outer shell of the hydraulic cylinder is inserted into the inner cavity of the column 21 and fixedly connected to the side wall of the column 21 (for example, fixedly connected by bolts).

[0031] Reference Figure 1 The hydraulic pump 3 includes a pump body and a hydraulic hose 31 connected to and in communication with the pump body, and the hydraulic hose 31 is detachably connected to the hydraulic cylinder.

[0032] Reference Figure 1 and Figure 3 The hydraulic cylinder further includes a locking valve 25, which is fixedly mounted at the bottom of the housing (for example, by bolts or by an integrated fixed connection). The inner cavity of the locking valve 25 is connected to the inner cavity of the hydraulic cylinder; the locking valve 25 is inserted into the first through hole at the bottom of the side wall of the column 21, and the outer end of the locking valve 25 and the valve switch are placed outside the column 21, so that it is convenient for users to open and close the locking valve 25. The hydraulic hose 31 is detachably connected to the locking valve 25 (for example, connected through a water nozzle).

[0033] Reference Figure 1 and Figure 3 The bottom support frame 41 is fixedly installed on the lower surface of the formwork 4 by bolts. The bottom support frame 41 includes a main keel 411 and a secondary keel 412 fixedly connected in a grid shape (for example, fixedly connected by bolts); the bottom support frame 41 is usually supported by vertical keels with a low density (after pouring concrete, the structural strength of the vertical keels is not enough to support the total weight of the formwork 4 and concrete, which will cause the bottom support frame 41 to deform or even collapse, so the present invention is needed for reinforcement). The main keel 411 and the secondary keel 412 are both hollow square tubes. The limiting claw 24 is a U-shaped plate structure; the inner cavity of the limiting claw 24 is adapted to be clamped with the outer surface of the hollow square tube.

[0034] Reference Figure 2 The cross brace rod body 1 includes an adjusting screw 11 and an adjusting sleeve 12 disposed at the end of the adjusting screw 11; the adjusting screw 11 and the adjusting sleeve 12 are adjustably connected through threads. A single adjusting screw 11 is connected to two adjusting sleeves 12, and the two ends of the adjusting screw 11 are respectively provided with external threads with opposite rotation directions, and the inner cavities of the two adjusting sleeves 12 are respectively provided with internal threads adapted to the external threads at the two ends, so that the adjusting screw 11 can drive the cross brace rod body 1 to extend or shorten when it rotates.

[0035] Reference Figure 3 , Figure 4 and Figure 5 The end of the adjusting sleeve 12 away from the adjusting screw 11 is provided with a collar 121, and the collar 121 is detachably connected to the column 21. A plurality of limiting rings 211 are sleeved on the outer surface of the column 21, and the limiting rings 211 are fixedly connected to the column 21 (for example, by bolts or by an integrated fixed connection); a collar gap is provided between adjacent limiting rings 211, and the collar gap is used to accommodate the collar 121, so as to prevent the collar 121 from sliding along the outer surface of the column 21, thereby improving the connection stability.

[0036] Reference Figure 4 and Figure 5 The collar 121 includes a first arc plate 1211, a second arc plate 1212, a third arc plate 1213 and a first bolt 1214. The adjusting sleeve 12 is connected to the middle of the first arc plate 1211 and is arranged in a Y shape. The end of the adjusting sleeve 12 is fixedly connected to the first arc plate 1211 (for example, fixedly connected by bolts or fixedly connected in an integrated manner). The second arc plate 1212 is rotatably connected to one end of the first arc plate 1211 through a first hinge shaft, and the third arc plate 1213 is rotatably connected to the other end of the first arc plate 1211 through a second hinge shaft. The second arc plate 1212 and the third arc plate 1213 are detachably connected by a first bolt 1214.

[0037] Reference Figure 4 and Figure 5 The cross section of the first arc plate 1211 is 1 / 2 arc-shaped; the cross section of the second arc plate 1212 is 1 / 4 arc-shaped; the cross section of the third arc plate 1213 is 1 / 4 arc-shaped; the first arc plate 1211, the second arc plate 1212 and the third arc plate 1213 are buckled into a ring structure.

[0038] Reference Figure 6The second arc plate 1212 is provided with a first extension protrusion 12121 at one end away from the first arc plate 1211, and the first extension protrusion 12121 is provided with a first plug hole 12122; the third arc plate 1213 is provided with a second extension protrusion 12131 at one end away from the first arc plate 1211, and the second extension protrusion 12131 is provided with a first screw hole 12132 adapted to the first plug hole 12122; the first bolt 1214 is adapted to be inserted into the first plug hole 12122 and is adapted to be screwed into the first screw hole 12132. The second arc plate 1212 and the first extension protrusion 12121 are fixedly connected in an integrated manner; the third arc plate 1213 and the second extension protrusion 12131 are fixedly connected in an integrated manner.

[0039] Reference Figure 6 A first protrusion 12111 is provided at one end of the first arc plate 1211 close to the second arc plate 1212, and the first protrusion 12111 is provided with a second screw hole 2421; a second protrusion 12123 is provided at one end of the second arc plate 1212 close to the first arc plate 1211, and the second protrusion 12123 is provided with a second plugging hole 12134 adapted to the second screw hole 2421; a third protrusion 12113 is provided at one end of the first arc plate 1211 close to the third arc plate 1213, and the third protrusion 12113 is provided with a third screw hole 12114; a fourth protrusion 12133 is provided at one end of the third arc plate 1213 close to the first arc plate 1211, and the fourth protrusion 12133 is provided with a third plugging hole 12134 adapted to the third screw hole 12114.

[0040] Reference Figure 6 The collar 121 also includes a second bolt 1215 and a third bolt 1216; the second bolt 1215 is adapted to be inserted into the second insertion hole 12134 and is adapted to be screwed into the second screw hole 2421; the third bolt 1216 is adapted to be inserted into the third insertion hole 12134 and is adapted to be screwed into the third screw hole 12114. The second screw hole 2421 and the second insertion hole 12134 are both arranged on the inner side of the first hinge shaft; the third screw hole 12114 and the third insertion hole 12134 are both arranged on the inner side of the second hinge shaft; the second bolt 1215 is used to assist the first hinge shaft in bearing force, and is used to improve the connection force between the first arc plate 1211 and the second arc plate 1212, so as to avoid the problem that the first hinge shaft cannot provide sufficient locking force and is damaged when the vertical support rod body 2 has a tendency to tilt and the distance between the adjacent vertical support rod bodies 2 has a tendency to change; at the same time, it is ensured that the first arc plate 1211 and the second arc plate 1212 will not be disengaged, so as to ensure the construction safety. Similarly, the third bolt 1216 is used to assist the second hinge shaft in bearing the load, and is used to improve the connection force between the first arc plate 1211 and the third arc plate 1213, so as to avoid the problem that the second hinge shaft cannot provide sufficient locking force and is damaged when the vertical support rod body 2 has a tendency to tilt and the distance between adjacent vertical support rod bodies 2 has a tendency to change; at the same time, it ensures that the first arc plate 1211 and the third arc plate 1213 will not be disengaged, thereby ensuring construction safety.

[0041] Reference Figure 6 Since the first arc plate 1211 and the second arc plate 1212 are both arc-shaped, and the second screw hole 2421 and the second plug hole 12134 are arranged on the inner side of the first hinge shaft, so that the second screw hole 2421 and the second plug hole 12134 are closer to the center of the first arc plate 1211 and the center of the second arc plate 1212, the first arc plate 1211 can provide more solid support structure for the second screw hole 2421, and the second arc plate 1212 can provide more solid support structure for the second plug hole 12134, so that the second screw hole 2421 and the second plug hole 12134 have as long a length as possible, so as to increase the contact area and locking force between the second screw hole 2421, the second plug hole 12134 and the second bolt 1215, and prevent the first arc plate 1211 and the second arc plate 1212 from being spread apart when the vertical support rod body 2 has a tilting tendency, thereby ensuring construction safety. Similarly, the third screw hole 12114 and the third insertion hole 12134 are arranged on the inner side of the second hinge shaft to increase the contact area and locking force between the third screw hole 12114, the third insertion hole 12134 and the third bolt 1216, so as to avoid the first arc plate 1211 and the third arc plate 1213 being stretched apart when the vertical support rod body 2 has a tilting tendency, thereby ensuring construction safety.

[0042] The construction method of the adjustable formwork 4 support frame for construction engineering comprises the following steps: S1, installing the vertical support rod body 2; S2, connecting the adjacent vertical support rod bodies 2 using the horizontal support rod body 1.

[0043] Step S1 further includes the following steps: S11, placing the vertical support rod body 2 upright under the template 4; S12, connecting the hydraulic hose 31 to the locking valve 25, so that the hydraulic pump 3 drives the output shaft 23 of the hydraulic cylinder to extend until the limit claw 24 presses the bottom support frame 41 on the lower surface of the template 4; S13, connecting the bottom support plate 22 to the ground through expansion bolts; S14, after closing the locking valve 25, unplug the hydraulic hose 31 from the locking valve 25.

[0044] Step S2 further includes the following steps: S21, connecting the collar 121 at one end of the cross brace rod 1 to any one of the adjacent vertical brace rods 2; S22, rotating the adjusting screw 11 and / or the collar 121 to make the length of the cross brace rod 1 adapt to the spacing between the adjacent vertical brace rods 2; S23, connecting the collar 121 at the other end of the cross brace rod 1 to another vertical brace rod 2 among the adjacent vertical brace rods 2.

[0045] In step S21 and step S23, the connection between the collar 121 and the support rod body 2 includes the following steps: A1, removing the first bolt 1214, the second bolt 1215 and the third bolt 1216 on the collar 121; A2, opening the second arc plate 1212 and the third arc plate 1213, so that the inner wall of the first arc plate 1211 fits with the outer wall of the column 21; A3, fastening the second arc plate 1212 and the third arc plate 1213, so that The inner walls of the second arc plate 1212 and the inner walls of the third arc plate 1213 are respectively fitted with the outer walls of the column 21; A4, insert the first bolt 1214 into the first socket 12122 and tighten it with the first screw hole 12132; A5, insert the second bolt 1215 into the second socket 12134 and tighten it with the second screw hole 2421, insert the third bolt 1216 into the third socket 12134 and tighten it with the third screw hole 12114.

[0046] Reference Figure 2 The middle part of the adjusting screw rod 11 is fixedly connected with a rotating part 111 in an integrated manner, and the rotating part 111 is in the shape of a hexagonal prism; the user can bite the rotating part 111 with a pipe wrench and rotate the rotating part 111 and the entire adjusting screw rod 11, thereby adjusting the length of the cross brace rod body 1. The rotating part 111 is radially provided with an insertion hole 112, and the insertion hole 112 runs through the entire rotating part 111. The user can insert a crowbar into the insertion hole 112 to conveniently rotate the rotating part 111 and the entire adjusting screw rod 11, thereby adjusting the length of the cross brace rod body 1.

[0047] Reference Figure 2 and Figure 5 The user buckles the first arc plate 1211, the second arc plate 1212 and the third arc plate 1213 into a ring shape and then tightens them with the first bolt 1214, the second bolt 1215 and the third bolt 1216. Then, the user inserts the crowbar into the ring 121 to conveniently rotate the ring 121 and the entire adjustment sleeve 12, thereby adjusting the length of the cross brace rod body 1.

[0048] Reference Figure 1 During the installation of the present invention, the hydraulic pump 3 is used to lift the vertical support rods 2 one by one, and then the hydraulic hose 31 is pulled out. During the dismantling of the present invention, the hydraulic hose 31 is connected and communicated with the locking valve 25, and then the hydraulic oil in the hydraulic cylinder is pumped out to shorten the vertical support rods 2 and recover the hydraulic oil. The hydraulic pump 3 has a built-in oil storage tank.

[0049] The hydraulic pump 3 is a portable hand-held hydraulic pump 3 or a small vehicle-mounted hydraulic pump 3 .

[0050] Reference Figure 8The limiting claw 24 includes a bottom plate 241, a pad 242, a bottom column 243 and a fourth bolt; the bottom plate 241 is a U-shaped plate structure; there are multiple pads 242 and different pads 242 have different thicknesses H (used to adapt to the widths of different main keels 411 / secondary keels 412 in different projects, so as to achieve the reuse of the present invention, improve the material turnover rate and reduce costs); the pad 242 can be selectively installed on the side wall of the inner cavity of the bottom plate 241. The cross-section of the pad 242 is an isosceles trapezoid and the long bottom side of the trapezoid fits the side wall of the inner cavity of the bottom plate 241, so that the claw of the limiting claw 24 forms an inner cavity with a gradually changing width, so as to facilitate the insertion of the main keel 411 or the secondary keel 412. The pads 242 are arranged in pairs, and the two pads 242 are respectively installed on the two side walls of the bottom plate 241. When in use, a pad 242 of appropriate width is selected according to the width of the main keel 411 or the secondary keel 412 and installed in the inner cavity of the bottom plate 241, so that the minimum spacing between the two pads 242 is equal to the width of the main keel 411 or the secondary keel 412, thereby achieving stable clamping and avoiding loosening. The bottom column 243 is fixedly connected to the middle of the bottom wall of the bottom plate 241 (for example, through an integrated fixed connection), and a reinforcing rib is provided at the connection position (the reinforcing rib is in the shape of a right-angled triangle, one right-angle edge of the reinforcing rib is welded and fixed to the bottom plate 241, and the other right-angle edge is welded and fixed to the side wall of the bottom column 243). The bottom end of the bottom column 243 is fixedly connected to the output shaft 23 of the hydraulic cylinder by bolts. A second through hole 2411 is provided at the side wall of the bottom plate 241, and a second screw hole 2421 adapted to the second through hole 2411 is provided on the pad 242. The fourth bolt can be adapted to be inserted into the second through hole 2411 and tightened with the fourth screw hole, thereby realizing the installation of the pad 242; the utility personnel can unscrew the fourth bolt to replace the pad 242.

[0051] In the conventional technology, since the main keel 411 and the secondary keel 412 are used in rotation, concrete blocks are often adhered to the surface of the main keel 411 and the secondary keel 412. The presence of the concrete blocks makes it impossible for the limiting claw 24 to be aligned with the edge of the main keel 411 / secondary keel 412, further making it impossible for the limiting claw 24 to be engaged with the main keel 411 / secondary keel 412. When such a problem occurs, the user lifts the vertical support rod 2 and tilts it so that the narrowest gap between the two pads 242 is directly below the concrete block, and then continues to lift the vertical support rod 2 so that the widest gap between the two pads 242 is stuck on the surface of the main keel 411 or the secondary keel 412; then, by rotating or continuing to lift the vertical support rod 2, the narrowest gap between the two pads 242 can be easily stuck on the surface of the main keel 411 or the secondary keel 412 (the pad 242 plays a guiding role here), and the concrete block adhering to the surface of the main keel 411 or the secondary keel 412 can be shoveled off by cutting force (the pad 242 plays a guiding and positioning role in cutting here), thereby achieving stable clamping of the limit claw 24. After the clamping is completed, the vertical support rod 2 is rotated to a vertical state, and the hydraulic pump 3 is started to press the bottom end of the vertical support rod 2 on the ground, and then the expansion bolts are used to fix the bottom support plate 22 to the ground.

[0052] The present invention has a simple structure and reliable functions. The vertical support rod body 2 applies a longitudinal support force to the formwork 4, thereby achieving reinforcement of the formwork 4; the hydraulic pump 3 is used to drive the vertical support rod body 2 to abut against the bottom support frame 41, thereby achieving indirect support for the formwork 4. The present invention adopts hydraulic drive and has excellent compatibility with the height of the formwork 4. Compared with traditional fastener-type and disc-type formwork frames, it has a more convenient loading and unloading form, improving construction efficiency. The horizontal support rod body 1 is used to connect adjacent vertical support rod bodies 2, so that a number of vertical support rod bodies 2 form a whole, improve the structural compactness of the present invention, and further improve the bearing capacity.

[0053] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0054] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] To sum up, for those skilled in the art, according to the guidance of the present invention, without departing from the principles and spirit of the present invention, the changes, modifications, substitutions and deformations made to the present invention still fall within the protection scope of the present invention.

Claims

1. An adjustable formwork (4) support frame for construction engineering, characterized in that: It comprises a transverse support rod body (1), a vertical support rod body (2) and a hydraulic pump (3); The transverse support rod body (1) and the vertical support rod body (2) are arranged vertically and are detachably connected; the vertical support rod bodies (2) are respectively arranged at both ends of the transverse support rod body (1); The length of the cross brace rod (1) is adjustable; The support rod body (2) comprises a hollow column (21) with an opening at the top, the bottom end of the column (21) being vertically fixedly connected to a bottom support plate (22), the inner cavity of the column (21) being provided with a hydraulic cylinder, the output shaft (23) of the hydraulic cylinder extending from the opening at the top end of the column (21); a limit clamping claw (24) being fixedly installed at the top end of the output shaft (23); The hydraulic pump (3) comprises a pump body and a hydraulic hose (31) connected to and in communication with the pump body, and the hydraulic hose (31) is detachably connected to the hydraulic cylinder.

2. The adjustable formwork (4) support frame for construction engineering according to claim 1, characterized in that: A locking valve (25) is provided at the bottom end of the outer shell of the hydraulic cylinder, and the locking valve (25) is communicated with the inner cavity of the hydraulic cylinder; the locking valve (25) is inserted into a first through hole at the bottom end of the side wall of the column (21); and the hydraulic hose (31) is detachably connected to the locking valve (25).

3. The adjustable formwork (4) support frame for construction engineering according to claim 2, characterized in that: The limiting claw (24) is a U-shaped plate structure.

4. The adjustable formwork (4) support frame for construction engineering according to claim 3 is characterized by: The cross brace rod body (1) comprises an adjusting screw (11) and an adjusting sleeve (12) arranged at the end of the adjusting screw (11); the adjusting screw (11) and the adjusting sleeve (12) are adjustably connected via a thread.

5. The adjustable formwork (4) support frame for construction engineering according to claim 4, characterized in that: A collar (121) is provided at the end of the adjusting sleeve (12) away from the adjusting screw rod (11); the collar (121) is detachably connected to the upright column (21).

6. The adjustable formwork (4) support frame for construction engineering according to claim 5, characterized in that: The collar (121) comprises a first arc plate (1211), a second arc plate (1212), a third arc plate (1213) and a first bolt (1214); the adjustment sleeve (12) is connected to the middle portion of the first arc plate (1211) and is arranged in a Y shape; the second arc plate (1212) is rotationally connected to one end of the first arc plate (1211) via a first hinge shaft, and the third arc plate (1213) is rotationally connected to the other end of the first arc plate (1211) via a second hinge shaft; the second arc plate (1212) and the third arc plate (1213) are detachably connected via a first bolt (1214).

7. The adjustable formwork (4) support frame for construction engineering according to claim 6, characterized in that: The cross section of the first arc plate (1211) is in the shape of a half arc; the cross section of the second arc plate (1212) is in the shape of a quarter arc; and the cross section of the third arc plate (1213) is in the shape of a quarter arc.

8. The adjustable formwork (4) support frame for construction engineering according to claim 7, characterized in that: A first extending protrusion (12121) is provided at one end of the second arc plate (1212) away from the first arc plate (1211), and the first extending protrusion (12121) is provided with a first plug hole (12122); a second extending protrusion (12131) is provided at one end of the third arc plate (1213) away from the first arc plate (1211), and the second extending protrusion (12131) is provided with a first screw hole (12132) adapted to the first plug hole (12122); and the first bolt (1214) is adapted to be plugged into the first plug hole (12122) and adapted to be screwed into the first screw hole (12132).

9. The adjustable formwork (4) support frame for construction engineering according to claim 8, characterized in that: A first protrusion (12111) is provided at one end of the first arc plate (1211) close to the second arc plate (1212), and a second screw hole (2421) is provided on the first protrusion (12111); a second protrusion (12123) is provided at one end of the second arc plate (1212) close to the first arc plate (1211), and a second plug hole (12134) adapted to the second screw hole (2421) is provided on the second protrusion (12123); A third protrusion (12113) is provided at one end of the first arc plate (1211) close to the third arc plate (1213), and the third protrusion (12113) is provided with a third screw hole (12114); a fourth protrusion (12133) is provided at one end of the third arc plate (1213) close to the first arc plate (1211), and the fourth protrusion (12133) is provided with a third plug hole (12134) adapted to the third screw hole (12114); The collar (121) further comprises a second bolt (1215) and a third bolt (1216); the second bolt (1215) is adapted to be inserted into the second insertion hole (12134) and is adapted to be screwed into the second screw hole (2421); the third bolt (1216) is adapted to be inserted into the third insertion hole (12134) and is adapted to be screwed into the third screw hole (12114); The second screw hole (2421) and the second insertion hole (12134) are both arranged on the inner side of the first hinge shaft; the third screw hole (12114) and the third insertion hole (12134) are both arranged on the inner side of the second hinge shaft.

10. The construction method of the adjustable formwork (4) support frame for construction engineering according to claim 9 is characterized in that the steps include: S1, installing the vertical support rod body (2); S2, connecting the adjacent vertical support rods (2) using the horizontal support rods (1); Step S1 further comprises the following steps, S11, placing the vertical support rod body (2) upright below the template (4); S12, connecting the hydraulic hose (31) to the locking valve (25), so that the hydraulic pump (3) drives the output shaft (23) of the hydraulic cylinder to extend until the limiting claw (24) presses against the bottom support frame (41) on the lower surface of the template (4); S13, connecting the bottom support plate (22) to the ground via expansion bolts; S14, removing the hydraulic hose (31) from the locking valve (25); Step S2 further comprises the following steps, S21, connecting the collar (121) at one end of the transverse support rod (1) to any one of the adjacent vertical support rods (2); S22, rotating the adjusting screw (11) and / or the sleeve ring (121) so that the length of the horizontal support rod (1) is adapted to the spacing between adjacent vertical support rods (2); S23, connecting the collar (121) at the other end of the transverse support rod (1) to another vertical support rod (2) among the adjacent vertical support rods (2); In step S21 and step S23, the connection between the collar (121) and the upright support rod (2) comprises the following steps respectively: A1. Remove the first bolt (1214), the second bolt (1215), and the third bolt (1216) on the collar (121); A2, opening the second arc plate (1212) and the third arc plate (1213) so that the inner wall of the first arc plate (1211) fits the outer wall of the column (21); A3, buckling the second arc plate (1212) and the third arc plate (1213) so that the inner wall of the second arc plate (1212) and the inner wall of the third arc plate (1213) are respectively in contact with the outer wall of the column (21); A4. Insert the first bolt (1214) into the first insertion hole (12122) and tighten it with the first screw hole (12132); A5. Insert the second bolt (1215) into the second insertion hole (12134) and tighten it with the second screw hole (2421); insert the third bolt (1216) into the third insertion hole (12134) and tighten it with the third screw hole (12114).

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