Highly efficient assembled formwork suitable for narrow spaces and its construction method

Abstract

The present invention discloses an efficient assembled formwork suitable for narrow spaces and a construction method thereof, which relates to the field of building technology and solves the problems of narrow deformation joint space, simultaneous construction of multiple adjacent frame columns, difficulty in formwork support, and difficulty in controlling construction quality. The efficient assembled formwork suitable for narrow spaces includes an external enclosure mechanism, which is wrapped around the outside of an internal support mechanism, a fixing mechanism is fixed to the outside of the external enclosure mechanism, a double set of main ribs are fixed to the outside of the external enclosure mechanism through a reinforcement mechanism, a triangular connecting plate is fixed to the top of the external enclosure mechanism, and a second hanging ring is fixed to the top of the internal support mechanism and the top of the triangular connecting plate. The present invention adopts common wooden formwork for construction, forms multiple frame columns with narrow adjacent spaces into a whole, reinforces them, improves construction efficiency, ensures the molding quality of the frame columns, and achieves the purpose of accelerating construction period and saving costs.

Description

Technical Field

[0001] The invention relates to the technical field of construction, and in particular to a high-efficiency assembled formwork suitable for narrow spaces and a construction method thereof. Background Art

[0002] At present, the number of super-long structure projects is increasing. In order to avoid the occurrence of concrete cracks, it is necessary to set deformation joints or post-cast strips. Cold storage belongs to warehouse-type buildings. According to different usage natures, cold storage is divided into use areas with different functions. Most deformation joints are set at the junction of use areas with different functions. Fire walls are used to separate use areas with different functions, and insulation materials are pasted on the firewalls. Therefore, when designing the structure, multiple frame columns and beams are designed at the deformation joint position, and the firewalls are built on the frame beams.

[0003] Due to the narrow space of the expansion joint, the construction of multiple adjacent frame columns at the same time made it difficult to support the formwork and control the construction quality. The construction had to be carried out in sections, which not only increased the construction cost but also delayed the construction period.

[0004] There are two ways to reinforce the existing conventional frame column formwork: one is to use formwork locks for reinforcement, and the other is to use steel pipes with through-wall screws for reinforcement. Both reinforcement methods are suitable for use in environments with large working surfaces and easy operation. They are no longer applicable to narrow spaces where workers cannot enter. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and propose a frame column construction structure and construction method. It mainly combines multiple frame columns into a whole, places an internal support mechanism in the middle of adjacent frame columns, and uses a reinforcement mechanism to reinforce the whole. By adopting this construction method, the construction progress is accelerated, the construction quality is guaranteed, and the material consumption is also saved.

[0006] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme:

[0007] The high-efficiency assembled formwork suitable for narrow spaces provided by the present invention includes an external enclosure mechanism, which is wrapped around the outside of an internal supporting mechanism, a fixing mechanism is fixed to the outside of the external enclosure mechanism, a double set of main ribs are fixed to the outside of the external enclosure mechanism via a reinforcement mechanism, a triangular connecting plate is fixed to the top of the external enclosure mechanism, and a second lifting ring is fixed to the top of the internal supporting mechanism and the top of the triangular connecting plate.

[0008] Preferably, the external enclosure mechanism includes a first panel, and second panels are symmetrically fixed on both sides of the first panel, a third panel is fixed on one side of the second panel, and a fourth panel is fixed on one side of the third panel, a fifth panel is fixed on the inner end surface of the fourth panel, and a sixth panel is fixed on the inner side of the fifth panel, and a seventh panel is fixed between the two sixth panels.

[0009] Preferably, the inner end surface of the first panel, the inner end surfaces of the two second panels and the inner end surface of the seventh panel are all fixed with limit strips, and the seventh panel is provided with three limit strips.

[0010] Preferably, the internal support mechanism includes a first inner support frame, a first inner template, a second inner support frame and a second inner template, and the first inner support frame is symmetrically provided with first limiting grooves on two sides thereof, the limiting strips on the first panel and the limiting strips at the middle of the seventh panel are respectively slidably connected to the first limiting grooves on both sides of the first inner support frame, and the other two sides of the first inner support frame are symmetrically provided with second limiting grooves, the inner end surface of the first inner template is fixed with a first limiting block, and the first limiting block is slidably connected to the second limiting groove, two outer sides of the second inner support frame are provided with third limiting grooves, the limiting strips on the second panel and the other limiting strips on the seventh panel are respectively slidably connected to the two third limiting grooves on the second inner support frame, and the other two outer sides of the second inner support frame are provided with fourth limiting grooves, and second limiting blocks are fixed on both inner walls of the second inner template, and the second limiting blocks are slidably connected to the fourth limiting grooves.

[0011] Preferably, a first connecting member is fixed between the tops of the two first inner templates by bolts, and a second connecting member is fixed at the corner of the top of the second inner template by bolts.

[0012] Preferably, inner top supports are fixed to the inner sides of the first inner support frame and the inner sides of the two second inner support frames, and the inner top supports are square wooden beams, and first hanging rings are fixed to the tops of the first inner template and the second inner template.

[0013] Preferably, the fixing mechanism includes vertical fixing members, transverse fixing members and longitudinal fixing members, and the vertical fixing members, transverse fixing members and longitudinal fixing members are all connected and fixed to the outside of the first panel, the second panel, the third panel, the fourth panel, the fifth panel, the sixth panel and the seventh panel by iron nails, and the transverse fixing members and longitudinal fixing members are all fixed to the two ends of the vertical fixing members by iron nails, and the transverse fixing members and the longitudinal fixing members are fixed together by iron nails.

[0014] Preferably, the reinforcement mechanism includes a screw rod, and the screw rod passes through the first panel, the second panel, the third panel, the fourth panel, the fifth panel, the sixth panel, the seventh panel, the PVC sleeve and the gasket, and nuts are symmetrically threaded at both ends of the screw rod.

[0015] The construction method of an efficient prefabricated formwork suitable for narrow spaces includes the following steps:

[0016] Step 1: Position and lay out the lines to determine the edge position of the frame column;

[0017] Step 2: According to the size of the frame column in the construction drawing, process and manufacture the first panel, the second panel, the third panel, the fourth panel, the fifth panel, the sixth panel, the seventh panel, the first inner support frame, the first inner formwork, the second inner support frame, the second inner formwork, the inner top support, the vertical fixings, the horizontal fixings and the longitudinal fixings in sequence;

[0018] Step 3: Determine the screw length and spacing based on the frame column size and calculation results, draw the screw positions on each panel in turn, and use an electric drill to drill holes;

[0019] Step 4: Use specific vertical fixings, horizontal fixings and longitudinal fixings at the upper, lower, left and right ends of the external enclosure structure panel, and adjust the positions of the vertical fixings at the joints of the two adjacent panels. The vertical fixings on one side of the panel protrude by the thickness of "one panel" to form a sub-opening, and the vertical fixings on the other side of the panel protrude by the thickness of "half a panel" to form a female opening;

[0020] Step 5: At the inner corner of the adjacent panel of the external enclosure, use nails to connect the triangular connecting plate to the upper horizontal fixing piece;

[0021] Step 6: According to the spacing between adjacent frame columns in the drawing, assemble the first inner support frame, the first inner formwork, the second inner support frame and the second inner formwork, and set the inner top support members on the inner side of the first inner support frame and the inner side of the second inner support frame, with a spacing of 200 mm;

[0022] Step 7: According to the frame column size and calculation results, the length and spacing of the double-group main ribs are obtained, and the double-group main ribs are processed and manufactured. Connectors are welded at both ends of the two main ribs to connect the two main ribs into a whole. The double-group main ribs are located at the inner corner, and each main rib is cut into a 45° bevel and welded to form a whole.

[0023] Step 8: Use a tower crane to lift the external enclosure structure to the floor, place the external enclosure structure on the positioning line from above the frame column reinforcement, and place the internal support structure in the middle of the adjacent frame columns;

[0024] Step 9: Use wooden beams as secondary beams and arrange them outside the external enclosure structure according to the spacing obtained from the calculation results;

[0025] Step 10: Use reinforcement mechanisms to reinforce the external enclosure in sequence. The construction sequence is: PVC casing placement, screw installation, double-group main rib installation, gasket installation, and nut installation reinforcement;

[0026] Step 11: Pour concrete and remove frame column formwork.

[0027] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects:

[0028] 1. The outer side of the external enclosure mechanism of the present invention is provided with a horizontal fixing member, a longitudinal fixing member, and a vertical fixing member. The external enclosure mechanism is assembled into a whole according to the size of the drawing in advance. The external enclosure mechanism is hoisted to the floor by using a lifting machinery. The internal support mechanism is located in the middle of the adjacent frame columns. The internal support member is provided with an internal top support member. The external enclosure mechanism and the internal support mechanism are formed into a whole by a reinforcement mechanism. The reinforcement mechanism is provided with a screw rod and a gasket. The screw rod passes through the external enclosure mechanism and the internal support mechanism in turn. The external enclosure mechanism is provided with a wooden square. The double-group main ribs are horizontally arranged on the outer side of the external enclosure mechanism.

[0029] 2. The present invention adopts common wooden formwork for construction, forms a plurality of frame columns with narrow adjacent spaces into a whole, reinforces them, improves construction efficiency, ensures the molding quality of the frame columns, and achieves the purpose of speeding up the construction period and saving costs;

[0030] 3. The present invention adopts double sets of main ribs as main ribs for reinforcement, which has large rigidity and is not easily deformed during turnover. It can be repeatedly used, and the internal angle is welded into a whole, which ensures the quality of internal angle forming, improves the visual quality of frame column forming, effectively inhibits the deformation of rods caused by internal angle die expansion, and saves the maintenance cost of internal angle die expansion;

[0031] 4. The present invention is suitable for template construction in a narrow space between adjacent frame columns where workers cannot enter. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0033] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] Figure 1 It is a schematic diagram of the front three-dimensional structure of the present invention;

[0035] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention when viewed from above;

[0036] Figure 3 It is a schematic diagram of the structure of the external enclosure mechanism of the present invention;

[0037] Figure 4 It is a schematic diagram of the overall structure of the internal support mechanism of the present invention;

[0038] Figure 5 It is a partial structural schematic diagram of the internal support mechanism of the present invention;

[0039] Figure 6 It is a schematic diagram of a partial top view cross-sectional structure of the internal support mechanism of the present invention;

[0040] Figure 7 It is a schematic diagram of the connection structure of the first panel, the second panel and the vertical fixing member of the present invention;

[0041] Figure 8 It is a structural schematic diagram of the reinforcement mechanism of the present invention.

[0042] In the figure: 1. External enclosure mechanism; 101. First panel; 102. Second panel; 103. Third panel; 104. Fourth panel; 105. Fifth panel; 106. Sixth panel; 107. Seventh panel; 108. Limiting strip; 2. Internal support mechanism; 201. First inner support frame; 202. First limiting groove; 203. Second limiting groove; 204. First inner template; 205. First limiting block; 206. First connecting member; 207. Second inner support frame; 208. Third limiting groove; 209. Fourth limiting groove; 210. Second inner template; 211. Second limiting block; 212. Second connecting piece; 213. Internal supporting piece; 214. First lifting ring; 3. Fixing mechanism; 301. Vertical fixing piece; 302. Horizontal fixing piece; 303. Longitudinal fixing piece; 4. Double set of main ribs; 5. Reinforcement mechanism; 501. Screw; 502. PVC sleeve; 503. Gasket; 504. Nut; 6. Triangular connecting plate; 7. Second lifting ring. DETAILED DESCRIPTION

[0043] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0044] Embodiment 1: This embodiment provides an efficient assembled template suitable for narrow spaces, such as Figure 1-8 As shown, it includes an external enclosure mechanism 1, which is wrapped around the outside of the internal supporting mechanism 2, a fixing mechanism 3 is fixed to the outside of the external enclosure mechanism 1, a double set of main ribs 4 are fixed to the outside of the external enclosure mechanism 1 through a reinforcing mechanism 5, a triangular connecting plate 6 is fixed to the top of the external enclosure mechanism 1, and a second lifting ring 7 is fixed to the top of the internal supporting mechanism 2 and the top of the triangular connecting plate 6.

[0045] like Figure 1 , Figure 2 and Figure 3 As shown, the external enclosure mechanism 1 includes a first panel 101, and second panels 102 are symmetrically fixed on both sides of the first panel 101, a third panel 103 is fixed on one side of the second panel 102, and a fourth panel 104 is fixed on one side of the third panel 103, a fifth panel 105 is fixed to the inner end surface of the fourth panel 104, and a sixth panel 106 is fixed on the inner side of the fifth panel 105, and a seventh panel 107 is fixed between the two sixth panels 106. The first panel 101, the second panel 102, the third panel 103, the fourth panel 104, the fifth panel 105, the sixth panel 106, and the seventh panel 107 constitute a complete external enclosure mechanism.

[0046] like Figure 2 and Figure 3 As shown, the inner end surfaces of the first panel 101, the inner end surfaces of the two second panels 102 and the inner end surface of the seventh panel 107 are all fixed with limit strips 108, and three limit strips 108 are arranged on the seventh panel 107. The limit strips 108 can strengthen the connection between the internal support mechanism 2 and the external enclosure mechanism 1.

[0047] like Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6As shown, the internal support mechanism 2 includes a first inner support frame 201, a first inner template 204, a second inner support frame 207 and a second inner template 210, and the first inner support frame 201 has two sides symmetrically provided with first limiting grooves 202, the limiting strips 108 on the first panel 101 and the limiting strips 108 at the middle of the seventh panel 107 are respectively slidably connected to the first limiting grooves 202 on both sides of the first inner support frame 201, and the other two sides of the first inner support frame 201 have second limiting grooves 203 symmetrically provided, the inner end surface of the first inner template 204 is fixed with a first limiting block 205, and the first limiting block 205 is slidably connected to the second limiting groove 203, two outer sides of the second inner support frame 207 are provided with third limiting grooves 208, and the limiting strips 108 on the second panel 102 are slidably connected to the first limiting grooves 202 on both sides of the first inner support frame 201. The limiting strip 108 and other limiting strips 108 on the seventh panel 107 are respectively slidably connected to the two third limiting grooves 208 on the second inner support frame 207, and the other two outer sides of the second inner support frame 207 are provided with a fourth limiting groove 209. Second limiting blocks 211 are fixed on both inner walls of the second inner template 210, and the second limiting blocks 211 are slidably connected in the fourth limiting grooves 209. The limiting strip 108 on the first panel 101, the limiting strip 108 at the middle of the seventh panel 107 and the first limiting block 205 play a role in limiting the first inner support frame 201, and the limiting strip 108 on the second panel 102, other limiting strips 108 on the seventh panel 107 and the second limiting block 211 play a role in limiting the second inner support frame 207.

[0048] like Figure 1 , Figure 4 and Figure 5 As shown, a first connecting member 206 is fixed between the tops of the two first inner templates 204 by bolts, and a second connecting member 212 is fixed at the corner of the top of the second inner template 210 by bolts. The first connecting member 206 can connect and fix the two first inner templates 204 to both sides of the first inner support frame 201, and the second connecting member 212 can connect and fix the second inner template 210 to the second inner support frame 207.

[0049] like Figure 6 As shown, inner supporting members 213 are fixed to the inner sides of the first inner supporting frame 201 and the inner sides of the two second inner supporting frames 207, and the inner supporting members 213 are square wooden beams. First hanging rings 214 are fixed to the tops of the first inner template 204 and the second inner template 210. The inner supporting members 213 made of square wooden beams support the interior of the first inner supporting frame 201 and the interior of the two second inner supporting frames 207, thereby making the structures of the first inner supporting frame 201 and the two second inner supporting frames 207 more stable.

[0050] like Figure 1 , Figure 2 and Figure 7As shown, the fixing mechanism 3 includes a vertical fixing member 301, a horizontal fixing member 302 and a longitudinal fixing member 303, and the vertical fixing member 301, the horizontal fixing member 302 and the longitudinal fixing member 303 are all connected and fixed on the outer sides of the first panel 101, the second panel 102, the third panel 103, the fourth panel 104, the fifth panel 105, the sixth panel 106 and the seventh panel 107 by iron nails, the horizontal fixing member 302 and the longitudinal fixing member 303 are all fixed to the two ends of the vertical fixing member 301 by iron nails, and the horizontal fixing member 302 and the longitudinal fixing member 303 are fixed together by iron nails, and the ends of all the fixing members are connected and fixed by iron nails at the junction, so as to facilitate the connection of the panel and the fixing member into a whole.

[0051] like Figure 1 , Figure 2 and Figure 8 As shown, the reinforcement mechanism 5 includes a screw 501, and the screw 501 passes through the first panel 101, the second panel 102, the third panel 103, the fourth panel 104, the fifth panel 105, the sixth panel 106, the seventh panel 107, the PVC sleeve 502 and the gasket 503, and the two ends of the screw 501 are symmetrically threaded with nuts 504, and the positions of the screws 501 are drilled in advance on the external enclosure mechanism 1 and the internal support mechanism 2 to ensure that the positions of all the screws 501 are at the same level.

[0052] Embodiment 2: A construction method for an efficient assembled formwork suitable for a narrow space. Based on the mechanisms of Embodiment 1, the present invention discloses the following specific method embodiment, which includes the following steps:

[0053] Step 1: Position and lay out the lines to determine the edge position of the frame column;

[0054] Step 2: According to the size of the frame column in the construction drawing, the first panel 101, the second panel 102, the third panel 103, the fourth panel 104, the fifth panel 105, the sixth panel 106, the seventh panel 107, the first inner support frame 201, the first inner formwork 204, the second inner support frame 207, the second inner formwork 210, the inner top support member 213, the vertical fixing member 301, the horizontal fixing member 302 and the longitudinal fixing member 303 are processed and manufactured in sequence;

[0055] Step 3: Determine the length and spacing of the screws 501 according to the frame column size and calculation results, mark the positions of the screws 501 on each panel in turn, and use an electric drill to drill holes;

[0056] Step 4: Use specific vertical fixing members 301, horizontal fixing members 302 and longitudinal fixing members 303 at the upper, lower, left and right ends of the panel of the external enclosure mechanism 1, and adjust the position of the vertical fixing member 301 at the joint position of the positive angle of two adjacent panels. The vertical fixing member 301 on one side panel protrudes from the panel by the thickness of "one panel" to form a sub-mouth, and the vertical fixing member 301 on the other side panel protrudes from the panel by the thickness of "half a panel" to form a female mouth;

[0057] Step 5: At the inner corner of the adjacent panel of the external enclosure mechanism 1, use nails to connect the triangular connecting plate 6 with the upper end transverse fixing piece 302;

[0058] Step 6: According to the spacing between adjacent frame columns in the drawing, assemble the first inner support frame 201, the first inner template 204, the second inner support frame 207 and the second inner template 210, and set the inner top support 213 on the inner side of the first inner support frame 201 and the inner side of the second inner support frame 207, with a spacing of 200 mm;

[0059] Step 7: According to the frame column size and calculation results, the length and spacing of the double-group main ribs 4 are obtained, and the double-group main ribs 4 are processed and manufactured. Connectors are welded at both ends of the two main ribs to connect the two main ribs into a whole. The double-group main ribs 4 are at the inner corner position, and each main rib is cut into a 45° bevel angle and welded to form a whole.

[0060] Step 8: Use a tower crane to lift the external enclosure structure 1 to the floor, place the external enclosure structure 1 on the positioning line from above the steel bars of the frame column, and place the internal support structure 2 in the middle of the adjacent frame columns;

[0061] Step 9: Use wooden planks as secondary beams and arrange them outside the external enclosure structure 1 according to the spacing obtained from the calculation results;

[0062] Step 10: The external enclosure mechanism 1 is reinforced in sequence using a reinforcement mechanism, and the construction sequence is: placement of the PVC sleeve 502, installation of the screw 501, installation of the double-group main rib 4, installation of the gasket 503, and installation and reinforcement of the nut 504;

[0063] Step 11: Pour concrete and remove frame column formwork.

[0064] After the above structural method, the adjacent frame column template reinforcement structure is as follows Figure 1 As shown, after adopting this method, multiple frame columns with narrow adjacent spaces are formed into a whole and reinforced, which improves construction efficiency, ensures the molding quality of the frame columns, and achieves the purpose of accelerating the construction period and saving costs.

[0065] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An efficient assembled formwork suitable for narrow spaces, comprising an external enclosure mechanism (1), characterized in that: The external enclosure mechanism (1) is wrapped around the outside of the internal support mechanism (2); a fixing mechanism (3) is fixed to the outside of the external enclosure mechanism (1); a double set of main ribs (4) are fixed to the outside of the external enclosure mechanism (1) via a reinforcing mechanism (5); a triangular connecting plate (6) is fixed to the top of the external enclosure mechanism (1); a second hanging ring (7) is fixed to the top of the internal support mechanism (2) and the top of the triangular connecting plate (6); the external enclosure mechanism (1) comprises a first panel (101), and second panels (102) are symmetrically fixed to both sides of the first panel (101); a third panel (103) is fixed to one side of the second panel (102); and a fourth panel (103) is fixed to one side of the third panel (103). The fourth panel (104) is provided with a fifth panel (105) fixed to the inner end surface of the fourth panel (104), and a sixth panel (106) is fixed to the inner side of the fifth panel (105), and a seventh panel (107) is fixed between the two sixth panels (106), the internal support mechanism (2) comprises a first inner support frame (201), a first inner template (204), a second inner support frame (207) and a second inner template (210), and first limiting grooves (202) are symmetrically provided on two sides of the first inner support frame (201), and the limiting strip (108) on the first panel (101) and the limiting strip (108) at the middle of the seventh panel (107) are respectively slidably connected to the first inner support frame (201) and the second inner template (210). The first inner support frame (201) is provided with a first limiting groove (202), and the other two sides of the first inner support frame (201) are symmetrically provided with second limiting grooves (203). The inner end surface of the first inner template (204) is fixed with a first limiting block (205), and the first limiting block (205) is slidably connected in the second limiting groove (203). Two outer sides of the second inner support frame (207) are provided with third limiting grooves (208). The limiting strips (108) on the second panel (102) and the other limiting strips (108) on the seventh panel (107) are respectively slidably connected in the two third limiting grooves (208) on the second inner support frame (207). The other two outer sides of the second inner support frame (207) are provided with fourth limiting grooves (208). A groove (209), second limit blocks (211) are fixed on both inner walls of the second inner template (210), and the second limit blocks (211) are slidably connected in the fourth limit groove (209), a first connecting member (206) is fixed between the tops of the two first inner templates (204) by bolts, a second connecting member (212) is fixed at the corner of the top of the second inner template (210) by bolts, an inner top support member (213) is fixed to the inner side of the first inner support frame (201) and the inner sides of the two second inner support frames (207), and the inner top support member (213) is a square wooden beam, and a first hanging ring (214) is fixed to the top of the first inner template (204) and the top of the second inner template (210),The fixing mechanism (3) comprises a vertical fixing member (301), a horizontal fixing member (302) and a longitudinal fixing member (303), and the vertical fixing member (301), the horizontal fixing member (302) and the longitudinal fixing member (303) are all connected and fixed to the outer sides of the first panel (101), the second panel (102), the third panel (103), the fourth panel (104), the fifth panel (105), the sixth panel (106) and the seventh panel (107) by means of iron nails, and the horizontal fixing member (302) and the longitudinal fixing member (303) are both fixed to the two ends of the vertical fixing member (301) by means of iron nails, and the horizontal fixing member (302) and the longitudinal fixing member (303) are fixed together by means of iron nails.

2. The high-efficiency assembled formwork suitable for narrow spaces according to claim 1 is characterized in that: The inner end surface of the first panel (101), the inner end surfaces of the two second panels (102) and the inner end surface of the seventh panel (107) are all fixed with limit strips (108), and the seventh panel (107) is provided with three limit strips (108).

3. The high-efficiency assembled formwork suitable for narrow spaces according to claim 1 is characterized in that: The reinforcing mechanism (5) comprises a screw rod (501), and the screw rod (501) passes through the first panel (101), the second panel (102), the third panel (103), the fourth panel (104), the fifth panel (105), the sixth panel (106), the seventh panel (107), the PVC sleeve (502) and the gasket (503), and nuts (504) are symmetrically threaded at both ends of the screw rod (501).

4. A construction method for an efficient assembled formwork suitable for narrow spaces, characterized in that: The following steps are involved: Step 1: Position and lay out the lines to determine the edge position of the frame column; Step 2: According to the size of the frame column in the construction drawing, the first panel (101), the second panel (102), the third panel (103), the fourth panel (104), the fifth panel (105), the sixth panel (106), the seventh panel (107), the first inner support frame (201), the first inner formwork (204), the second inner support frame (207), the second inner formwork (210), the inner top support member (213), the vertical fixing member (301), the horizontal fixing member (302) and the longitudinal fixing member (303) are processed and manufactured in sequence; Step 3: Determine the length and spacing of the screw rods (501) according to the frame column size and calculation results, mark the positions of the screw rods (501) on each panel in turn, and use an electric drill to drill holes; Step 4: using specific vertical fixing members (301), horizontal fixing members (302) and longitudinal fixing members (303) at the upper, lower, left and right ends of the panel of the external enclosure mechanism (1), the position of the vertical fixing members (301) is adjusted at the joint position of the outer corners of two adjacent panels, so that the vertical fixing members (301) on one side panel protrude from the panel by the thickness of "one panel" to form a sub-opening, and the vertical fixing members (301) on the other side panel protrude from the panel by the thickness of "half a panel" to form a female opening; Step 5: At the inner corner of the adjacent panel of the external enclosure structure (1), use iron nails to connect the triangular connecting plate (6) to the upper end transverse fixing piece (302); Step 6: According to the spacing between adjacent frame columns in the drawing, assemble the first inner support frame (201), the first inner template (204), the second inner support frame (207) and the second inner template (210), and set the inner top support member (213) on the inner side of the first inner support frame (201) and the inner side of the second inner support frame (207), with a spacing of 200 mm; Step 7: According to the frame column size and the calculation result, the length and spacing of the double-group main ribs (4) are obtained, and the double-group main ribs (4) are processed and manufactured. Connectors are welded at both ends of the two main ribs to connect the two main ribs into a whole. The double-group main ribs (4) are located at the inner corner, and each main rib is cut into a 45° bevel angle and welded to form a whole. Step 8: Use a tower crane to lift the external enclosure structure (1) to the upper floor, place the external enclosure structure (1) on the positioning line from above the steel bars of the frame column, and place the internal support structure (2) in the middle of the adjacent frame columns; Step 9: Use wooden planks as secondary beams and arrange them outside the external enclosure structure (1) according to the spacing obtained from the calculation results; Step 10: The external enclosure structure (1) is reinforced in sequence using a reinforcement structure, and the construction sequence is: placement of the PVC sleeve (502), installation of the screw (501), installation of the double-group main ribs (4), installation of the gasket (503), and installation and reinforcement of the nut (504); Step 11: Pour concrete and remove frame column formwork.

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