A disassembly and reusable wall column formwork contact fixing arm

Abstract

This invention discloses a reusable wall and column formwork contact fixing arm, comprising a wall and column formwork support frame arm assembly and a structural shear wall. A wall and column formwork contact push arm assembly is fixedly mounted on the top of one end of the wall and column formwork support frame arm assembly. The wall and column formwork support frame arm assembly and the wall and column formwork contact push arm assembly form a complete wall and column formwork contact fixing arm unit. The wall and column formwork support frame arm assembly is pulled and internally supported and fixed within a pre-embedded sleeve of the structural shear wall, forming a support arm structure at the bottom of the wall and column formwork. The wall and column formwork contact push arm assembly forms a push-pull structure on the wall and column formwork support frame arm assembly, which can achieve bottom support and forward movement of the wall and column formwork through a pull and push motion. It is convenient and reliable to use, easy to disassemble, and reusable in actual construction.

Description

Technical Field

[0001] The invention belongs to the field of building engineering technology, specifically relating to a disassembly and reusable wall column formwork contact fixing arm. Background Technology

[0002] When constructing shear walls, the wall column formwork construction method is often adopted. The specific construction method is as follows: the shear wall is protected by wall column formwork on both sides, and then concrete material is injected into the wall column formwork on both sides. After the bottom solidifies, the top is constructed in sequence according to the above steps.

[0003] The existing technology has the following problems: When fixing inter-layer formwork, the existing technology often uses pre-embedded single-headed bolts or steel bars at the nodes. The drawback of this approach is that the single-headed bolts or steel bars are pre-embedded in the shear wall structure and welded to the main steel bars. First, the bolts or steel bars cannot be reused. If they are not properly handled after removal, rust may occur, affecting the appearance of the decorative surface. Second, the welding connection with the main steel bars may affect the mechanical properties of the main steel bars. At the same time, neither of the above two methods can be effectively disassembled and recycled. This leads to a waste of resources. Furthermore, the use of a large number of pre-embedded single-headed bolts or steel bars results in a significant waste of manpower and resources in terms of usage costs and subsequent removal. The inability to disassemble and recycle leads to high usage costs and subsequent removal costs. Summary of the Invention

[0004] To address the problems mentioned in the background section, the invention provides a detachable and reusable wall column formwork anti-fixing arm, which is convenient to use.

[0005] To achieve the above objectives, the invention provides the following technical solution: a disassembled and reusable wall and column formwork contact fixing arm, comprising a wall and column formwork support base frame arm assembly and a structural shear wall, wherein a wall and column formwork contact push arm assembly is fixedly installed at the top of one end of the wall and column formwork support base frame arm assembly, and a complete wall and column formwork contact fixing arm unit is formed between the wall and column formwork support base frame arm assembly and the wall and column formwork contact push arm assembly, wherein the wall and column formwork support base frame arm assembly is pulled and internally supported and fixed in the pre-embedded sleeve of the structural shear wall, and the wall and column formwork support base frame arm assembly forms a support arm structure at the bottom of the wall and column formwork, and the wall and column formwork contact push arm assembly forms a push-pull arm structure for the wall and column formwork on the wall and column formwork support base frame arm assembly;

[0006] The wall column formwork support frame assembly includes a bottom support arm tube and a central inner arm. Arm tube shaft lugs are provided on both sides of the bottom support arm tube at both ends. Guide grooves and rotating end grooves are respectively provided in the middle and at the ends of the bottom support arm tube. Two symmetrically arranged inner support expansion arc plates are provided on the outside of the bottom support arm tube. A first connecting shaft and a second connecting shaft are rotatably connected between the inner support expansion arc plates and the bottom support arm tube. An auxiliary connecting shaft is rotatably connected between the second connecting shaft and the bottom support arm tube. The rotating end... The groove is equipped with a slanted limiting tooth moving tooth. A first pushing spring is provided between the rear end of the slanted limiting tooth moving tooth and the bottom support arm tube of the wall column template. A limiting seat and a pull handle are fixedly provided at one end of the central inner arm rod, and a first inner arm rod end platform and a second inner arm rod end platform are fixedly provided at the other end of the central inner arm rod. A first inner arm rod pushing spring and a second inner arm rod pushing spring are sleeved on the end of the central inner arm rod near the second inner arm rod end platform. An inner arm rod ear plate is fixedly provided in the middle of the central inner arm rod. A seat platform slide groove is opened on the limiting seat platform, and a seat platform slanted limiting tooth is fixedly provided in the seat platform slide groove.

[0007] In a preferred embodiment of a reusable wall and column formwork anti-fixing arm, the wall and column formwork anti-push arm assembly includes a U-shaped top frame and a push arm slide rod. The top and bottom of the U-shaped top frame are respectively fixed with a push arm sliding seat tube and an L-shaped support frame arm, and a side support plate is fixedly installed on one side of the U-shaped top frame. A limiting ratchet is rotatably provided on the same side of the U-shaped top frame. A second push spring is provided between the rear end of the limiting ratchet and the side support plate. A turning gear is rotatably provided inside the U-shaped top frame through a turning shaft and a bearing seat. A limiting ratchet is fixedly provided at one end of the turning shaft. A turning handle is fixedly provided on the turning gear. A perforated support end platform is fixedly provided at the top of the push arm sliding seat tube through a top connecting plate. A push arm rear end platform and a push arm push plate are respectively fixedly provided at both ends of the push arm slide rod. A push arm transverse groove is provided on the push arm slide rod. A transverse groove tooth is provided inside the push arm transverse groove. A push arm return spring is sleeved on the push arm slide rod.

[0008] In a preferred embodiment of a disassembled and reusable wall column formwork anti-fixing arm, the central inner arm and its limiting seat slide reciprocally within the bottom support arm tube of the wall column formwork, the inner arm ear plate slides reciprocally within the guide groove, and the end of the bottom support arm tube of the wall column formwork away from the rotating end groove is provided with a sliding groove and sliding hole for the central inner arm to slide through, the first inner arm pushing spring and the first inner arm end plate are located inside the bottom support arm tube of the wall column formwork, and the second inner arm pushing spring and the second inner arm end plate are located outside the bottom support arm tube of the wall column formwork, and the force of the second inner arm pushing spring is greater than the force of the first inner arm pushing spring.

[0009] In a preferred embodiment of a disassembled and reusable wall column formwork anti-fixing arm, two arm tube shaft lugs are fixedly installed on the bottom surface of the inner support expansion arc plate. The two ends of the first connecting shaft are rotatably installed on the outer wall of the bottom support arm tube of the wall column formwork and the bottom surface of the inner support expansion arc plate through shafts and shaft holes. The top of the second connecting shaft is rotatably installed on the bottom surface of the inner support expansion arc plate, and the bottom of the second connecting shaft is rotatably installed at the inner arm lug plate on the central inner arm through shafts and shaft holes. The two ends of the auxiliary connecting shaft are rotatably installed on the second connecting shaft and the outer wall of the bottom support arm tube of the wall column formwork through shafts and shaft holes.

[0010] In a preferred embodiment of a disassembly and recycling wall column template contact fixing arm, the first push spring abuts against the rear end of the inclined limiting tooth moving tooth, the middle end of the inclined limiting tooth moving tooth is rotatably set in the rotating end groove, and the front end of the inclined limiting tooth moving tooth presses and engages with the inclined limiting tooth of the seat in the limiting seat. When the front end of the inclined limiting tooth moving tooth and the inclined limiting tooth of the seat engage, a limiting structure is formed between the inclined limiting tooth of the seat and the inclined limiting tooth moving tooth, allowing the central inner arm rod to move unidirectionally within the support arm tube at the bottom of the wall column template.

[0011] In a preferred embodiment of a disassembly and recycling wall column formwork contact fixing arm, the push arm slide rod reciprocates within the perforated support end platform and the push arm sliding seat tube. The push arm push plate is located at the front end of the push arm sliding seat tube, and the push arm return spring and the push arm rear end platform are located at the rear end of the perforated support end platform. The two ends of the push arm return spring abut against the push arm rear end platform and the perforated support end platform, respectively. Through the pushing of the push arm return spring, the push arm slide rod is in a natural backward structure at the top of the wall column formwork contact push arm assembly.

[0012] In a preferred embodiment of a disassembly and recycling wall column template contact fixing arm, the actuating shaft on the actuating gear is rotatably mounted on the U-shaped top frame via a bearing seat, the limiting ratchet is located on the outside of the U-shaped top frame, the middle part of the limiting ratchet is rotatably mounted on the outside of the U-shaped top frame via a shaft and a bearing seat, and the second pushing spring abuts against the rear end of the limiting ratchet. Through the pushing of the second pushing spring, a unidirectional rotating ratchet limiting structure is formed between the front end of the limiting ratchet and the limiting ratchet.

[0013] In a preferred embodiment of a disassembly and recycling wall column template contact fixing arm, the top of the actuating gear meshes with the transverse groove teeth on the push arm slide rod. By actuating the gear to move the meshing teeth on the transverse groove teeth on the push arm slide rod, the push arm slide rod forms a toothed forward pushing top pressure arm structure at the top of the wall column template contact push arm assembly. The bottom of the L-shaped support frame arm is fixedly connected to the outer wall of the bottom support arm tube of the wall column template.

[0014] Compared with the prior art, the beneficial effects of the invention are as follows: In actual use, the pre-embedded sleeve is pre-set inside the structural shear wall, and the wall column formwork support frame arm assembly is inserted into the pre-embedded sleeve to form an internal support and fixing structure that can adapt to different pipe diameters. In actual use, the wall column formwork support frame arm assembly is first inserted and fixed inside the pre-embedded sleeve, serving as the bottom support arm structure of the wall column formwork. This achieves bottom support for the wall column formwork during use. Then, by moving the wall column formwork abutment push arm assembly, the wall column formwork is pushed against the structural shear wall. The working principle of the wall column formwork support frame arm assembly is as follows. The following is a schematic diagram: Two symmetrically arranged internal expansion arc plates are installed on the outside of the bottom support arm tube of the wall column formwork. These internal expansion arc plates and the bottom support arm tube of the wall column formwork formwork form an expansion arm structure with a variable outer diameter. When the wall column formwork support frame arm assembly is inserted and fixed into the pre-embedded sleeve, pulling the handle outward causes the inner arm lug plate on the central inner arm rod to slide forward at the bottom of the second connecting shaft rod. At this time, the second connecting shaft rod and the first connecting shaft rod are in an expanded structure. The outer diameter of the internal support structure formed between the internal expansion arc plates and the bottom support arm tube of the wall column formwork increases. Through this expanded structure, the wall column formwork support frame arm assembly is tightly internally supported and fixed to the pre-embedded sleeve. The inner wall of the tube ensures support for the subsequent wall and column formwork. Simultaneously, the wall and column formwork support frame arm assembly is equipped with a base inclined limiting tooth and an inclined limiting tooth moving tooth. In actual use, through the cooperation of the above structures, the central inner arm rod can only move outward in one direction when the bottom support arm tube of the wall and column formwork is pulled outward. This ensures that when the inner support structure formed between the inner support expansion arc plate and the bottom support arm tube of the wall and column formwork expands, the expansion force remains constant. The wall and column formwork resists the push arm assembly, applying a pushing force to the wall and column formwork, causing the wall and column formwork to resist the structural shear wall. The shifting gear engages with the transverse groove teeth on the push arm slide rod. In actual use… By pushing the handle upwards, the push plate at the end of the push arm slide rod can be pushed forward to achieve the pushing and contacting of the wall column formwork. Through the cooperation of the limiting ratchet and the limiting ratchet tooth, the turning gear can only be turned in one direction when the push arm slide rod is turned, thus ensuring that the push arm slide rod moves forward in one direction. In actual construction use, the bottom support and forward movement of the wall column formwork can be achieved by pulling and pushing. It is convenient and reliable to use, and it is also easy to disassemble. The wall column formwork support base frame arm assembly and the wall column formwork contact push arm assembly form a complete wall column formwork contact fixing arm unit. In actual construction use, it is also easy to disassemble and can be recycled. Attached Figure Description

[0015] Figure 1 A three-dimensional view of the invention in use;

[0016] Figure 2 A three-dimensional diagram of the invention;

[0017] Figure 3 To invent a stereoscopic view from another perspective;

[0018] Figure 4 Exploded view of the invention;

[0019] Figure 5 A perspective view of the wall column formwork support frame arm assembly for the invention;

[0020] Figure 6 Exploded view of the wall column formwork support frame arm assembly for invention;

[0021] Figure 7 A perspective view of the wall column formwork anti-push arm assembly for invention;

[0022] Figure 8 Exploded view of the wall column formwork anti-push arm assembly for invention;

[0023] In the diagram: 100, Wall column formwork support frame arm assembly; 101, Wall column formwork bottom support arm tube; 102, Inner support extension arc plate; 103, First connecting shaft; 104, Arm tube shaft lug plate; 105, Guide groove; 106, Second connecting shaft; 107, Auxiliary connecting shaft; 108, Rotating end groove; 109, First jacking spring; 110, Inclined limiting tooth moving tooth; 111, Limiting seat; 112, Pull handle; 113, Central inner arm rod; 114, Seat inclined limiting tooth; 115, Seat groove; 116, Inner arm rod lug plate; 117, First inner arm rod end platform; 118, First inner arm rod jacking spring; 119, Second inner arm rod jacking spring. Spring; 120, Second inner arm rod end platform; 200, Wall column formwork contact push arm assembly; 201, U-shaped top frame; 202, Actuating gear; 203, Limiting ratchet; 204, Actuating shaft; 205, Actuating handle; 206, L-shaped support frame arm; 207, Limiting ratchet; 208, Second push spring; 209, Side support plate; 210, Push arm sliding seat tube; 211, Push arm push plate; 212, Push arm slide rod; 213, Push arm return spring; 214, Push arm rear end platform; 215, Horizontal groove teeth; 216, Push arm horizontal groove; 217, Top connecting plate; 218, Perforated support end platform; 300, Structural shear wall; 400, Embedded sleeve. Detailed Implementation

[0024] The technical solutions of the embodiments of the invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the invention.

[0025] Please see Figure 1-8As shown, the present invention provides a disassembly and recycling wall and column formwork contact fixing arm, comprising a wall and column formwork support base arm assembly 100 and a structural shear wall 300. A wall and column formwork contact push arm assembly 200 is fixedly installed at the top of one end of the wall and column formwork support base arm assembly 100. A complete wall and column formwork contact fixing arm unit is formed between the wall and column formwork support base arm assembly 100 and the wall and column formwork contact push arm assembly 200. The wall and column formwork support base arm assembly 100 is pulled and internally supported and fixed in the pre-embedded sleeve 400 of the structural shear wall 300, and the wall and column formwork support base arm assembly 100 forms a support arm structure at the bottom of the wall and column formwork. The wall and column formwork contact push arm assembly 200 forms a push-type jacking arm structure on the wall and column formwork support base arm assembly 100 to push the wall and column formwork.

[0026] In a preferred embodiment, please refer to Figure 5 and Figure 6 , .

[0027] In this embodiment, the wall column formwork support frame arm assembly 100 includes a wall column formwork bottom support arm tube 101 and a central inner arm rod 113. Arm tube shaft lugs 104 are provided on both sides of the arm body at both ends of the wall column formwork bottom support arm tube 101. Guide grooves 105 and rotating end grooves 108 are respectively provided in the middle and at the ends of the wall column formwork bottom support arm tube 101. Two internal support expansion arc plates 102 are symmetrically arranged on the outside of the wall column formwork bottom support arm tube 101. A first connecting shaft 103 and a second connecting shaft 106 are rotatably arranged between the internal support expansion arc plates 102 and the wall column formwork bottom support arm tube 101. An auxiliary connecting shaft 107 is rotatably arranged between the second connecting shaft 106 and the wall column formwork bottom support arm tube 101. The rotating end groove 108... The inner arm 113 is equipped with a slanted limiting tooth 110. A first push spring 109 is provided between the rear end of the slanted limiting tooth 110 and the bottom support arm tube 101 of the wall column template. A limiting seat 111 and a pull handle 112 are fixedly provided at one end of the central inner arm 113, and a first inner arm end platform 117 and a second inner arm end platform 120 are fixedly provided at the other end of the central inner arm 113. A first inner arm push spring 118 and a second inner arm push spring 119 are sleeved on the end of the central inner arm 113 near the second inner arm end platform 120. An inner arm ear plate 116 is fixedly provided in the middle of the central inner arm 113. A seat groove 115 is provided on the limiting seat 111, and a seat slanted limiting tooth 114 is fixedly provided in the seat groove 115.

[0028] Secondly, please refer to again Figure 5 and Figure 6 .

[0029] The aforementioned central inner arm 113 and its limiting seat 111 reciprocate within the bottom support arm tube 101 of the wall column template. The inner arm ear plate 116 reciprocates within the guide groove 105. The end of the bottom support arm tube 101 of the wall column template away from the rotating end groove 108 is provided with a sliding groove and sliding hole through which the central inner arm 113 slides. The first inner arm push spring 118 and the first inner arm end plate 117 are located inside the bottom support arm tube 101 of the wall column template. The second inner arm push spring 119 and the second inner arm end plate 120 are located outside the bottom support arm tube 101 of the wall column template. The force of the second inner arm push spring 119 is greater than the force of the first inner arm push spring 118. Through the above structure, it is convenient for the central inner arm 113 to be reset within the bottom support arm tube 101 of the wall column template.

[0030] Secondly, please refer to it again. Figure 5 and Figure 6 .

[0031] Two arm tube shaft lugs 104 are fixedly installed on the bottom surface of the aforementioned inner support expansion arc plate 102. The two ends of the first connecting shaft 103 are rotatably installed on the outer wall of the bottom support arm tube 101 of the wall column template and the bottom surface of the inner support expansion arc plate 102 through shafts and shaft holes. The top of the second connecting shaft 106 is rotatably installed on the bottom surface of the inner support expansion arc plate 102, and the bottom of the second connecting shaft 106 is rotatably installed at the inner arm tube lug 116 on the central inner arm tube 113 through shafts and shaft holes. The two ends of the auxiliary connecting shaft 107 are rotatably installed on the second connecting shaft 106 and the outer wall of the bottom support arm tube 101 of the wall column template through shafts and shaft holes.

[0032] In this embodiment, the first push spring 109 abuts against the rear end of the inclined limiting tooth moving tooth 110. The middle end of the inclined limiting tooth moving tooth 110 is rotatably set in the rotating end groove 108. The front end of the inclined limiting tooth moving tooth 110 presses and engages with the inclined limiting tooth 114 of the seat in the limiting seat 111. When the front end of the inclined limiting tooth moving tooth 110 and the inclined limiting tooth 114 of the seat are engaged, a limiting structure is formed between the inclined limiting tooth 114 of the seat and the inclined limiting tooth moving tooth 110, which allows the central inner arm 113 to move unidirectionally within the bottom support arm tube 101 of the wall column template. Through this embodiment, the unidirectional movement of the central inner arm 113 within the bottom support arm tube 101 of the wall column template is realized, thereby ensuring that the expansion structure formed between the bottom support arm tube 101 of the wall column template and the inner support expansion arc plate 102 does not retract inward.

[0033] In a preferred embodiment, please refer to Figure 7 and Figure 8The wall column formwork anti-push arm assembly 200 includes a U-shaped top frame 201 and a push arm slide rod 212. A push arm sliding seat tube 210 and an L-shaped support frame arm 206 are fixedly installed at the top and bottom of the U-shaped top frame 201, respectively. A side support plate 209 is fixedly installed on one side of the U-shaped top frame 201. A limiting ratchet 207 is rotatably provided on the same side of the U-shaped top frame 201. A second push spring 208 is provided between the rear end of the limiting ratchet 207 and the side support plate 209. A rotatable mechanism is provided inside the U-shaped top frame 201 via a rotatable shaft 204 and a bearing seat. A gear 202 is fixedly provided with a limit ratchet 203 at one end of the actuating shaft 204. An actuating handle 205 is fixedly provided on the actuating gear 202. A perforated support end platform 218 is fixedly provided on the top of the push arm sliding seat tube 210 through the top connecting plate 217. A push arm rear end platform 214 and a push arm push plate 211 are fixedly provided at both ends of the push arm slide rod 212, and a push arm transverse groove 216 is provided on the push arm slide rod 212. A transverse groove tooth 215 is provided inside the push arm transverse groove 216. A push arm return spring 213 is sleeved on the push arm slide rod 212.

[0034] In this embodiment, the push arm slide rod 212 reciprocates within the perforated support end platform 218 and the push arm sliding seat tube 210. The push arm push plate 211 is located at the front end of the push arm sliding seat tube 210. The push arm return spring 213 and the push arm rear end platform 214 are located at the rear end of the perforated support end platform 218. The two ends of the push arm return spring 213 abut against the push arm rear end platform 214 and the perforated support end platform 218, respectively. Through the pushing of the push arm return spring 213, the push arm slide rod 212 is in a structure of natural backward movement when it abuts the top of the push arm assembly 200 of the wall column template.

[0035] The push arm return spring 213 pushes the push arm slide rod 212 forward, allowing it to quickly return to its original position after the push arm slide rod 212 has moved forward.

[0036] Secondly, please refer to Figure 7 and Figure 8 The actuating shaft 204 on the actuating gear 202 is rotatably mounted on the U-shaped top frame 201 via a bearing seat. The limiting ratchet 203 is located on the outside of the U-shaped top frame 201. The middle part of the limiting ratchet 207 is rotatably mounted on the outside of the U-shaped top frame 201 via a shaft and a bearing seat. The second pushing spring 208 abuts against the rear end of the limiting ratchet 207. Through the pushing of the second pushing spring 208, a unidirectional rotating ratchet limiting structure is formed between the front end of the limiting ratchet 207 and the limiting ratchet 203.

[0037] The above-mentioned combination of the limiting ratchet 207 and the limiting ratchet 203 ensures that when the push arm slide rod 212 pushes the wall column formwork, the push arm slide rod 212 only moves forward and does not move backward.

[0038] In this embodiment, the top of the actuating gear 202 meshes with the transverse groove teeth 215 on the push arm slide rod 212. By actuating the gear 202 to move the meshing of the transverse groove teeth 215 on the push arm slide rod 212, the push arm slide rod 212 forms a toothed forward pushing top pressure arm structure when it abuts the top of the push arm assembly 200 of the wall column template. The bottom of the L-shaped support frame arm 206 is fixedly connected to the outer wall of the bottom support arm tube 101 of the wall column template.

[0039] The working principle of this invention is as follows: In actual use, the pre-embedded sleeve 400 is pre-set inside the structural shear wall 300, and the wall column formwork support frame arm assembly 100 is inserted into the pre-embedded sleeve 400 to form an internal support and fixing structure that can adapt to different pipe diameters. In actual use, the wall column formwork support frame arm assembly 100 is first inserted and fixed inside the pre-embedded sleeve 400, and the wall column formwork support frame arm assembly 100 serves as the bottom support arm structure of the wall column formwork. In this way, the bottom support of the wall column formwork is achieved during use. Then, by moving the wall column formwork abutment push arm assembly 200, the wall column formwork is pushed against the structural shear wall 300. The working principle of the wall column formwork support frame arm assembly 100 is as follows: the bottom of the wall column formwork... Two symmetrically arranged inner support expansion arc plates 102 are provided on the outside of the main support arm tube 101. A first connecting shaft 103 and a second connecting shaft 106 are rotatably connected between the inner support expansion arc plates 102 and the bottom support arm tube 101 of the wall column template. An auxiliary connecting shaft 107 is rotatably connected between the second connecting shaft 106 and the bottom support arm tube 101 of the wall column template. The bottom of the second connecting shaft 106 is rotatably located at the inner arm ear plate 116 on the central inner arm 113. At the same time, the inner arm ear plate 116 slides back and forth within the guide groove 105. In actual use, the central inner arm 113 slides back and forth within the bottom support arm tube 101 of the wall column template. At this time, the first inner arm push spring 118 and the second inner arm push spring 119 respectively abut against the bottom of the wall column template. On both sides of the perforated end of the support arm tube 101, in the initial state, through the pushing action of the first inner arm rod pushing spring 118 and the second inner arm rod pushing spring 119, the inner support expansion arc plate 102 and the bottom support arm tube 101 of the wall column template form a slightly expanded structure through the first connecting shaft 103. When the wall column template support frame arm assembly 100 is inserted and fixed in the pre-embedded sleeve 400, the central inner arm rod 113 is first pushed backward by the pull handle 112. At this time, the inner arm rod ear plate 116 on the central inner arm rod 113 drives the bottom of the second connecting shaft 106 to slide backward. At this time, the second connecting shaft 106 and the first connecting shaft 103 are in a downward structure. At this time, the inner support expansion arc plate 102 and the bottom support arm tube 101 of the wall column template form a slightly expanded structure through the first connecting shaft 103. The outer diameter of the internal support structure formed between the inner support plate 102 and the bottom support arm tube 101 of the wall column formwork is small. This method facilitates the insertion of the wall column formwork support frame arm assembly 100 into pre-embedded sleeves 400 of different diameters. Then, the pushing force on the pull handle 112 is released. At this time, the internal support structure formed between the inner support expansion arc plate 102 and the bottom support arm tube 101 of the wall column formwork will return to its initial position and only abut against the inner wall of the pre-embedded sleeve 400. Then, the pull handle 112 is pulled outward with force. At this time, the inner arm lug plate 116 on the central inner arm rod 113 drives the bottom of the second connecting shaft rod 106 to slide forward. At this time, the second connecting shaft rod 106 and the first connecting shaft rod 103 are in an expanded state. At this time, the outer diameter of the internal support structure formed between the inner support expansion arc plate 102 and the bottom support arm tube 101 of the wall column formwork becomes larger.Through this extended structure, the wall column formwork support frame arm assembly 100 is tightly internally fixed to the inner wall of the pre-embedded sleeve 400, thereby ensuring support for the subsequent wall column formwork. Simultaneously, the wall column formwork support frame arm assembly 100 is equipped with a base inclined limiting tooth 114 and an inclined limiting tooth moving tooth 110. In actual use, through the cooperation of the above structures, the central inner arm rod 113 can only move outward in one direction when the bottom support arm tube 101 of the wall column formwork is pulled outward, and cannot move in the opposite direction. This prevents the two inner support expansion arc plates 102 from contracting towards the center, which would cause the wall column formwork support frame arm assembly 100 to fail to be securely fixed within the pre-embedded sleeve 400. In this way, the relationship between the inner support expansion arc plates 102 and the bottom support arm tube 101 of the wall column formwork is ensured. When the internal support structure expands, this expansion force can remain unchanged. Simultaneously, during the process of pushing the central inner arm 113 backward, the rear end of the inclined limiting tooth 110 must be pressed down. At this time, the limiting between the front end of the inclined limiting tooth 110 and the inclined limiting tooth 114 of the base is released, thus ensuring the normal backward sliding of the central inner arm 113. At the same time, a wall column formwork abutment push arm assembly 200 is fixedly installed at the top front end of the wall column formwork support frame arm assembly 100. The wall column formwork abutment push arm assembly 200 applies a pushing force to the wall column formwork, causing it to abut against the structural shear wall 300. Its working principle is as follows: the push arm slide rod 212 reciprocates within the push arm sliding seat tube 210. At this time, the shifting gear 202 meshes with the transverse groove tooth 215 on the push arm slide rod 212. In actual use, by turning the handle 205 upwards, the pusher plate 211 at the end of the pusher slide 212 can be pushed forward, achieving the pushing and resisting of the wall column formwork. At the same time, a limiting ratchet 203 is provided on the coaxial rod of the turning gear 202, and a limiting ratchet 207 is provided on one side of the limiting ratchet 203. Through the cooperation of the limiting ratchet 203 and the limiting ratchet 207, the turning gear 202 can only turn the pusher slide 212 in one direction, thus ensuring that the pusher slide 212 moves forward only. When disassembly is required, the rear end of the limiting ratchet 207 is pressed. At this time, the limiting ratchet 203 and the limiting ratchet 207 are disengaged. Then, the pusher slide 212 is pushed back by the pusher return spring 213, and the pusher slide 212 drives the pusher plate. 211 slides backward to reset the initial state. This invention uses the wall column formwork support frame arm assembly 100 for bottom support during wall column formwork erection, and the wall column formwork push-arm assembly 200 to push and engage the formwork. Simultaneously, the wall column formwork support frame arm assembly 100 can meet the internal support and fixing requirements of pre-embedded sleeves 400 of different diameters. In actual construction, a pull action secures the wall column formwork support frame arm assembly 100 within the pre-embedded sleeve 400, while a push action pushes the wall column formwork against the push-arm push-arm assembly 200, with the push-arm push plate 211 pushing the formwork. This pull-and-push action achieves both bottom support and forward movement of the wall column formwork, making it convenient, reliable, and easy to disassemble.The wall column formwork support frame arm assembly 100 and the wall column formwork contact push arm assembly 200 form a complete wall column formwork contact fixing arm unit. In actual construction, it is easy to disassemble and can be recycled.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A disassembly and reusable wall column formwork contact fixing arm, comprising a wall column formwork support frame arm assembly (100) and a structural shear wall (300), characterized in that: The wall column formwork support frame arm assembly (100) has a wall column formwork abutment push arm assembly (200) fixedly installed at one top end. The wall column formwork support frame arm assembly (100) and the wall column formwork abutment push arm assembly (200) form a complete wall column formwork abutment fixing arm unit. The wall column formwork support frame arm assembly (100) is pulled and internally supported and fixed in the pre-embedded sleeve (400) of the structural shear wall (300). The wall column formwork support frame arm assembly (100) forms a support arm structure that meets the internal support fixing requirements of pre-embedded sleeves (400) of different diameters. The wall column formwork support frame arm assembly (100) forms a support arm structure at the bottom of the wall column formwork. The wall column formwork abutment push arm assembly (200) forms a push-type push arm structure on the wall column formwork support frame arm assembly (100) for pushing the wall column formwork. The wall column formwork support frame arm assembly (100) includes a wall column formwork bottom support arm tube (101) and a central inner arm rod (113). The wall column formwork bottom support arm tube (101) has two internal support extension arc plates (102) symmetrically arranged on the outside. The wall column template abutment push arm assembly (200) includes a U-shaped top frame (201) and a push arm slide rod (212). The U-shaped top frame (201) has a rotating gear (202) inside it through a rotating shaft rod (204) and a bearing seat. Both ends of the bottom support arm tube (101) of the wall column template are provided with arm tube shaft lugs (104), and the middle and end of the bottom support arm tube (101) of the wall column template are respectively provided with guide grooves (105) and rotating end grooves (108). The inner support expansion arc plate (102) and the bottom support arm tube (101) of the wall column template are rotatably connected by a first connecting shaft (103) and a second connecting shaft (106). The second connecting shaft (106) and the bottom support arm tube (101) of the wall column template are rotatably connected by an auxiliary connecting shaft (107). The rotating end groove (108) is rotatably provided with a slanted limiting tooth moving tooth (110). The rear end of the slanted limiting tooth moving tooth (110) and the bottom support arm tube of the wall column template are connected by a slanted limiting tooth moving tooth (110) and a slanted limiting tooth moving tooth (110). A first push spring (109) is provided between (101). A limiting seat (111) and a pull handle (112) are fixedly provided at one end of the central inner arm rod (113), and a first inner arm rod end platform (117) and a second inner arm rod end platform (120) are fixedly provided at the other end of the central inner arm rod (113). A first inner arm rod push spring (118) and a second inner arm rod push spring (119) are sleeved on the end of the central inner arm rod (113) near the second inner arm rod end platform (120). An inner arm rod ear plate (116) is fixedly provided in the middle of the central inner arm rod (113). A seat groove (115) is opened on the limiting seat (111), and a seat inclined limiting tooth (114) is fixedly provided in the seat groove (115). The top and bottom of the U-shaped top frame (201) are respectively fixedly provided with a push arm sliding seat tube (210) and an L-shaped support frame arm (206), and a side support plate (209) is fixedly provided on one side of the U-shaped top frame (201). A limiting ratchet (207) is rotatably provided on the same side of the U-shaped top frame (201). A second push spring (208) is provided between the rear end of the limiting ratchet (207) and the side support plate (209). A limiting ratchet (203) is fixedly provided at one end of the actuating shaft (204). The actuating gear ( A toggle handle (205) is fixedly installed on the push arm sliding seat tube (210). A perforated support end platform (218) is fixedly installed on the top of the push arm sliding rod (212) through the top connecting plate (217). A push arm rear end platform (214) and a push arm push plate (211) are fixedly installed at both ends of the push arm slide rod (212). A push arm transverse groove (216) is provided on the push arm slide rod (212). A transverse groove tooth (215) is provided inside the push arm transverse groove (216). A push arm return spring (213) is sleeved on the push arm slide rod (212).

2. The reusable wall column formwork contact fixing arm according to claim 1, characterized in that: The central inner arm (113) and its limiting seat (111) slide back and forth in the bottom support arm tube (101) of the wall column template. The inner arm ear plate (116) slides back and forth in the guide groove (105). The end of the bottom support arm tube (101) of the wall column template away from the rotating end groove (108) is provided with a sliding groove and sliding hole for the central inner arm (113) to slide through. The first inner arm push spring (118) and the first inner arm end plate (117) are located inside the bottom support arm tube (101) of the wall column template. The second inner arm push spring (119) and the second inner arm end plate (120) are located outside the bottom support arm tube (101) of the wall column template. The force of the second inner arm push spring (119) is greater than the force of the first inner arm push spring (118).

3. The reusable wall column formwork contact fixing arm according to claim 1, characterized in that: Two arm tube shaft lugs (104) are fixedly installed on the bottom surface of the inner support expansion arc plate (102). The two ends of the first connecting shaft (103) are rotatably installed on the outer wall of the bottom support arm tube (101) of the wall column template and the bottom surface of the inner support expansion arc plate (102) through shafts and shaft holes. The top of the second connecting shaft (106) is rotatably installed on the bottom surface of the inner support expansion arc plate (102), and the bottom of the second connecting shaft (106) is rotatably installed at the inner arm tube lug (116) on the central inner arm tube (113) through shafts and shaft holes. The two ends of the auxiliary connecting shaft (107) are rotatably installed on the second connecting shaft (106) and the outer wall of the bottom support arm tube (101) of the wall column template through shafts and shaft holes.

4. The reusable wall column formwork contact fixing arm according to claim 1, characterized in that: The first push spring (109) abuts against the rear end of the inclined limiting tooth moving tooth (110). The middle end of the inclined limiting tooth moving tooth (110) is rotatably set in the rotating end groove (108). The front end of the inclined limiting tooth moving tooth (110) presses and engages with the inclined limiting tooth (114) of the seat in the limiting seat (111). When the front end of the inclined limiting tooth moving tooth (110) and the inclined limiting tooth (114) of the seat engage, a limiting structure is formed between the inclined limiting tooth (114) of the seat and the inclined limiting tooth moving tooth (110) to allow the central inner arm rod (113) to move unidirectionally in the support arm tube (101) at the bottom of the wall column template.

5. The reusable wall column formwork contact fixing arm according to claim 1, characterized in that: The push arm slide rod (212) slides back and forth within the perforated support end platform (218) and the push arm sliding seat tube (210). The push arm push plate (211) is located at the front end of the push arm sliding seat tube (210). The push arm return spring (213) and the push arm rear end platform (214) are located at the rear end of the perforated support end platform (218). The two ends of the push arm return spring (213) abut against the push arm rear end platform (214) and the perforated support end platform (218) respectively. Through the push of the push arm return spring (213), the push arm slide rod (212) is in a natural backward structure when the wall column template abuts against the top of the push arm assembly (200).

6. The reusable wall column formwork contact fixing arm according to claim 1, characterized in that: The actuating shaft (204) on the actuating gear (202) is rotatably mounted on the U-shaped top frame (201) via a bearing seat. The limiting ratchet (203) is located on the outside of the U-shaped top frame (201). The middle part of the limiting ratchet (207) is rotatably mounted on the outside of the U-shaped top frame (201) via a shaft and a bearing seat. The second push spring (208) abuts against the rear end of the limiting ratchet (207). Through the push of the second push spring (208), the front end of the limiting ratchet (207) and the limiting ratchet (203) form a unidirectional rotating ratchet limiting structure.

7. The reusable wall column formwork contact fixing arm according to claim 1, characterized in that: The top of the actuating gear (202) meshes with the transverse groove teeth (215) on the push arm slide rod (212). By actuating the gear (202) to actuate the meshing of the transverse groove teeth (215) on the push arm slide rod (212), the push arm slide rod (212) forms a toothed forward pushing top pressure arm structure at the top of the wall column template abutting the push arm assembly (200). The bottom of the L-shaped support frame arm (206) is fixedly connected to the outer wall of the bottom support arm tube (101) of the wall column template.

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