A concrete hollow floor core mold fixing device

Abstract

The application discloses a concrete hollow floor core mold fixing device, and relates to the technical field of hollow floors, which comprises a body mechanism, the body mechanism comprises a reinforcing bar frame, a core mold body is arranged above the reinforcing bar frame, and a processing mechanism is arranged above the reinforcing bar frame; the processing mechanism comprises a fixing unit, the fixing unit is located outside the core mold body, and the fixing unit is used for quickly fixing the core mold body on the reinforcing bar frame; the processing mechanism further comprises a positioning unit, the positioning unit is located outside the core mold body, the fixing unit is used in cooperation with the positioning unit, and the positioning unit is used for assisting the fixing unit to quickly position and install the core mold body; the concrete hollow floor core mold fixing device is provided with the fixing unit, thereby achieving the purpose of quickly installing the core mold body on the reinforcing bar frame, and the core mold body is installed without consuming a large amount of time by using wire tying or bolts, the installation and fixing time of the core mold body is reduced, and the installation efficiency of the core mold body is improved.

Description

Technical Field

[0001] This invention relates to the field of hollow floor slab technology, specifically to a core mold fixing device for hollow concrete floor slabs. Background Technology

[0002] Cast-in-place hollow concrete floor slabs are a type of hollow floor slab technology that uses lightweight materials arranged in a certain pattern to replace part of the concrete in a solid floor slab to form cavities or lightweight sandwich structures, creating cavities and hidden ribs, forming a spatial honeycomb-like load-bearing structure.

[0003] In existing technologies, when constructing hollow concrete floor slabs, bolts or ties are typically used to fix them to reinforcing bars or floor slabs before pouring concrete to complete the construction. However, workers need to spend a lot of time and manpower to fix the core mold of the hollow concrete floor slab by binding the ties or installing bolts, which makes the operation cumbersome and reduces construction efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a core mold fixing device for hollow concrete floor slabs to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a core mold fixing device for hollow concrete floor slabs, comprising a main body mechanism, wherein the main body mechanism includes a steel reinforcement frame, a core mold body is disposed above the steel reinforcement frame, and a processing mechanism is disposed above the steel reinforcement frame;

[0006] The processing mechanism includes a fixing unit located outside the core mold body, which is used to quickly fix the core mold body onto the steel reinforcement frame.

[0007] The processing mechanism also includes a positioning unit located outside the core mold body. The fixing unit works in conjunction with the positioning unit, and the positioning unit assists the fixing unit in quickly positioning and installing the core mold body.

[0008] An adjustment mechanism is provided above the steel reinforcement frame. The processing mechanism works in conjunction with the adjustment mechanism. The adjustment mechanism is used to quickly adjust the core mold body that has a positional deviation.

[0009] Preferably, the fixing unit includes a mounting box, the bottom surface of which contacts the upper surface of the core mold body. A fixing ring is fixedly installed on the inner bottom wall of the mounting box, and a connecting frame is fixedly installed on the inner wall of the fixing ring. Four rack plates are slidably connected inside the fixing ring and the connecting frame. Four rotating gears are rotatably connected to the inner bottom wall of the fixing ring, and the outer surfaces of the four rotating gears mesh with the outer surfaces of the four rack plates respectively. A connecting bearing is fixedly installed on the upper surface of the connecting frame, and a rack ring is fixedly installed on the upper surface of the inner ring of the connecting bearing. The outer surfaces of the four rotating gears mesh with the inner walls of the rack ring. A rotating shaft is fixedly installed on the upper surface of one of the rotating gears. The top end of the rotating shaft passes through the mounting box and is fixedly installed with a first worm gear. A first placement frame is fixedly installed on the upper surface of the mounting box. The first placement frame has a rotating shaft inside. A first worm gear is dynamically connected, and the outer surface of the first worm gear meshes with the outer surface of the first worm wheel. Connecting columns are fixedly installed on the sides of the four rack plates that are far apart from each other. Mounting brackets are fixedly installed on the sides of two of the connecting columns that are far from the mounting box. Two bases are provided below the rebar frame, and the inner walls of the two bases are in contact with the outer surface of the rebar frame. Four connecting boxes are fixedly installed on the upper surfaces of the two bases. Each mounting bracket is snapped into the interior of a connecting box. A connecting spring is fixedly installed on the inner wall of each connecting box. A wedge block is fixedly installed on the end of each connecting spring near the mounting bracket, and each wedge block is snapped into the interior of the mounting bracket. Fixing brackets are fixedly installed on the upper surfaces of the two bases. Limiting brackets are provided inside the two fixing brackets, and the inner walls of the two limiting brackets are in contact with the outer surface of the rebar frame.

[0010] Preferably, a fixed bearing is fixedly connected to the upper surface of the mounting box, and the upper surface of the inner ring of the fixed bearing is fixedly connected to the bottom surface of the first worm gear.

[0011] Preferably, a telescopic rod is fixedly installed on the inner wall of each connecting box, and the telescopic end of each telescopic rod is fixedly connected to the side of the wedge block near the connecting spring.

[0012] Preferably, the positioning unit includes four clamping frames. The sides of the four clamping frames furthest from the mounting box are fixedly connected to the inner walls of four connecting columns. The sides of the four clamping frames closest to the mounting box contact the outer surface of the mounting box. Positioning rods are fixedly installed on the sides of two clamping frames furthest from each other. Positioning boxes are fixedly installed on the front of both bases. The two positioning rods are respectively engaged inside the two positioning boxes. Movable plates are fixedly installed on the bottom surfaces of both bases. Concave frames are provided below both bases. Rotating columns are rotatably connected inside both concave frames. The outer surfaces of the two rotating columns are slidably connected to the inner walls of the two movable plates. The outer surface of each rotating column is provided with four sliding grooves. The inner walls of each of the two movable plates are rotatably connected with four sliding balls, each sliding ball being slidably connected inside the sliding groove. The front of each of the two concave frames is fixedly installed with a fixed plate. The front of each of the two concave frames is provided with a second worm gear. The back of each of the two second worm gears is slidably connected with six moving blocks. The back of each moving block is fixedly installed with a moving column, each moving column being slidably connected inside the fixed plate. The front of each of the two concave frames is fixedly installed with a second placement frame. The interior of each of the two second placement frames is rotatably connected with a second worm, and the outer surfaces of the two second worms respectively mesh with the outer surfaces of the two second worm gears.

[0013] Preferably, the inner walls of both concave frames are fixedly equipped with slide rods, and the outer surfaces of the two slide rods are slidably connected to the inner walls of the two movable plates, respectively.

[0014] Preferably, a rotating bearing is fixedly installed on the back of each of the two second worm gears, and the back of the inner ring of each of the two rotating bearings is fixedly connected to the front of the two concave frames respectively.

[0015] Preferably, the adjusting mechanism includes two sets of fixed springs, with two fixed springs in each set. The top ends of the two sets of fixed springs are fixedly connected to the inner top walls of the two fixed frames, respectively. The bottom end of each fixed spring is fixedly connected to the upper surface of the limiting frame. A limiting box is fixedly installed on the upper surface of each of the two limiting frames. A movable box is slidably connected inside each of the two limiting boxes. A threaded rod is threadedly connected inside each of the two movable boxes. A first ball bearing is fixedly installed at the bottom end of each of the two threaded rods. Four second balls bearings are provided inside each of the two movable boxes. The outer surface of each first ball bearing contacts the outer surface of a second ball bearing, and the outer surface of each second ball bearing contacts the inner wall of the limiting box. Each of the two movable boxes has a limit spring fixedly installed on its inner bottom wall. Each of the two limit springs has a connecting plate fixedly installed on its top end. The upper surfaces of the two connecting plates are in contact with the outer surfaces of the two first balls. The top ends of the two threaded rods pass through the limit boxes and are fixedly installed with a rotating disk. Each of the two fixed frames has a placement box fixedly installed on its upper surface. Each of the two placement boxes has a roller slidably connected inside. Each of the two rollers is engaged inside the rotating disk. Each of the two rollers has a pull rod fixedly installed on its outer surface. The ends of the two pull rods away from the rollers pass through to the outside of the placement box. Each of the two placement boxes has a pin engaged inside. The bottom ends of the two pins pass through the pull rods and extend into the inside of the placement box.

[0016] Preferably, two telescopic columns are fixedly installed on the inner top walls of both fixed frames, and the telescopic end of each telescopic column is fixedly connected to the upper surface of the limiting frame.

[0017] Preferably, a telescopic shaft is fixedly installed on the inner bottom wall of both mobile boxes, and the telescopic ends of both telescopic shafts are fixedly connected to the bottom surface of the connecting plate.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] First, the present invention has a fixing unit that allows workers to place the base under the rebar frame, then place the mounting box on top of the core mold body, and snap the mounting bracket into the inside of the connecting box. This allows the limiting bracket to lock the rebar frame with the base, thereby achieving the purpose of quickly installing the core mold body on the rebar frame. This eliminates the need to spend a lot of time using ties or bolts to install the core mold body, thus improving the installation efficiency of the core mold body.

[0020] Secondly, by incorporating a positioning unit, the present invention enables the fixing unit to position and fine-tune the base during installation, thereby allowing the positioning unit to assist the mounting bracket in entering the connecting box more quickly. This further reduces the fixing time of the fixing unit on the core mold body, and thus further improves the installation efficiency of the core mold body.

[0021] 3. This invention, by incorporating an adjustment mechanism, allows workers to adjust the position of the core mold body after installation without disassembling it. This makes it easier to adjust the position of the core mold body when there is a positional deviation, further improving the installation and fixing efficiency of the core mold body. The device, by incorporating a processing mechanism and an adjustment mechanism, enables rapid installation and fixing of the core mold body, thereby reducing the installation time and improving the installation efficiency of the core mold body. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the core mold body of the present invention;

[0024] Figure 3 This is a schematic diagram of the installation box of the present invention;

[0025] Figure 4 This is a structural schematic diagram of the cross-sectional view of the mounting box of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the rack ring cross-section of the present invention;

[0027] Figure 6 This is a schematic diagram of the mounting bracket of the present invention;

[0028] Figure 7 This is a structural schematic diagram of the cross-sectional view of the connecting box of the present invention;

[0029] Figure 8 This is a structural schematic diagram of the cross-sectional view of the base of the present invention;

[0030] Figure 9 This is a schematic diagram of the cross-sectional view of the movable plate of the present invention;

[0031] Figure 10 This is a schematic diagram of the cross-sectional view of the second worm gear of the present invention;

[0032] Figure 11 This is a structural schematic diagram of the rear sectional view of the fixed disk of the present invention;

[0033] Figure 12 This is a schematic diagram of the structure of the fixing frame of the present invention (cross-sectional view).

[0034] Figure 13 This is a structural schematic diagram of the cross-sectional view of the limiting box of the present invention;

[0035] Figure 14 This is a structural schematic diagram of the cross-sectional view of the movable box of the present invention.

[0036] In the diagram: 1. Main body mechanism; 11. Rebar frame; 12. Core mold body; 2. Processing mechanism; 21. Fixing unit; 2101. Mounting box; 2102. Fixing ring; 2103. Connecting frame; 2104. Rack plate; 2105. Rotating gear; 2106. Connecting bearing; 2107. Rack ring; 2108. Rotating shaft; 2109. First worm gear; 2110. First placement frame; 2111. First worm; 2112. Connecting column; 2113. Mounting frame; 2114. Base; 2115. Connecting box; 2116. Connecting spring; 2117. Wedge block; 2118. Fixing frame; 2119. Limiting frame; 2120. Fixing bearing; 2121. Telescopic rod; 22. Positioning unit; 2201. Clamping frame; 2202. 2203, Positioning rod; 2204, Positioning box; 2205, Moving plate; 2206, Concave frame; 2207, Rotating column; 2208, Sliding groove; 2209, Sliding ball; 2210, Fixed plate; 2211, Second worm gear; 2211, Moving block; 2212, Moving column; 2213, Second placement frame; 2214, Second worm gear; 2215, Sliding rod; 2216, Rotating bearing; 3, Adjustment mechanism; 301, Fixed spring; 302, Limiting box; 303, Moving box; 304, Threaded rod; 305, First ball bearing; 306, Second ball bearing; 307, Limiting spring; 308, Connecting plate; 309, Rotating plate; 310, Placement box; 311, Roller; 312, Pull rod; 313, Pin; 314, Telescopic column; 315, Telescopic shaft. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Example 1: Please refer to Figures 1-8 The present invention provides a technical solution: a core mold fixing device for hollow concrete floor slabs, including a main body mechanism 1, the main body mechanism 1 including a steel bar frame 11, a core mold body 12 arranged above the steel bar frame 11, and a processing mechanism 2 arranged above the steel bar frame 11.

[0039] The processing mechanism 2 includes a fixing unit 21, which is located outside the core mold body 12. The fixing unit 21 is used to quickly fix the core mold body 12 onto the steel frame 11.

[0040] As a further definition of the fixing unit 21 of the present invention, the fixing unit 21 includes a mounting box 2101. The bottom surface of the mounting box 2101 contacts the upper surface of the core mold body 12. A fixing ring 2102 is fixedly installed on the inner bottom wall of the mounting box 2101. A connecting frame 2103 is fixedly installed on the inner wall of the fixing ring 2102. Four rack plates 2104 are slidably connected inside the fixing ring 2102 and the connecting frame 2103. Four rotating gears 2105 are rotatably connected to the inner bottom wall of the fixing ring 2102. The outer surfaces of the four rotating gears 2105 respectively mesh with the outer surfaces of the four rack plates 2104. A connecting bearing 2106 is fixedly installed on the upper surface of the connecting frame 2103, that is, the bottom surface of the outer ring of the connecting bearing 2106 is connected to the connecting frame 2103. The upper surface of 103 is fixedly connected, and a rack ring 2107 is fixedly installed on the upper surface of the inner ring of the connecting bearing 2106. The outer surfaces of the four rotating gears 2105 mesh with the inner wall of the rack ring 2107. A rotating shaft 2108 is fixedly installed on the upper surface of one of the rotating gears 2105. The top end of the rotating shaft 2108 passes through the mounting box 2101 and is fixedly installed with a first worm gear 2109. A first placement frame 2110 is fixedly installed on the upper surface of the mounting box 2101. A first worm 2111 is rotatably connected inside the first placement frame 2110. The outer surface of the first worm 2111 meshes with the outer surface of the first worm gear 2109. Connecting columns 2112 are fixedly installed on the opposite sides of the four rack plates 2104. The first worm gear 2111 drives the first worm wheel 2109 to rotate, which in turn drives the rotating gear 2105 to rotate, thereby adjusting the distance between the rack plates 2104. This allows the connecting posts 2112 to be adjusted according to the size of the core mold body 12, making it suitable for various core mold bodies 12. Each of the two connecting posts 2112 has a mounting bracket 2113 fixedly installed on the side away from the mounting box 2101. Two bases 2114 are provided below the rebar frame 11, with the inner walls of both bases 2114 contacting the outer surface of the rebar frame 11. Four connecting boxes 2115 are fixedly installed on the upper surface of each base 2114, with each mounting bracket 2113 snapped into the inside of the connecting box 2115. Mounting bracket 2113 is inserted into the interior of four connecting boxes 2115. A connecting spring 2116 is fixedly installed on the inner wall of each connecting box 2115. A wedge block 2117 is fixedly installed at one end of each connecting spring 2116 near the mounting bracket 2113. Each wedge block 2117 is engaged inside the mounting bracket 2113. Fixing brackets 2118 are fixedly installed on the upper surface of two bases 2114. Limiting brackets 2119 are provided inside each of the two fixing brackets 2118. The limiting brackets 2119 and bases 2114 engage with each other and are engaged on the outer surface of the rebar frame 11, thus fixing the frame to the rebars. The inner walls of the two limiting brackets 2119 are in contact with the outer surface of the rebar frame 11. A fixing unit 21 is provided.This allows workers to place the base 2114 below the rebar frame 11, then place the mounting box 2101 above the core mold body 12, and snap the mounting bracket 2113 into the connecting box 2115. This allows the limiting bracket 2119 to work with the base 2114 to lock the rebar frame 11, thus achieving the goal of quickly installing the core mold body 12 onto the rebar frame 11. This eliminates the need for spending a significant amount of time installing the core mold body 12 using ties or bolts, improving the installation efficiency of the core mold body 12.

[0041] Please see Figure 4 A fixed bearing 2120 is fixedly connected to the upper surface of the mounting box 2101. Specifically, the bottom surface of the outer ring of the fixed bearing 2120 is fixedly connected to the upper surface of the mounting box 2101, and the upper surface of the inner ring of the fixed bearing 2120 is fixedly connected to the bottom surface of the first worm gear 2109. The installation of the fixed bearing 2120 plays a role in stabilizing the first worm gear 2109, thereby preventing the first worm gear 2109 from shaking when rotating, and thus ensuring the stability of the rotation of the first worm gear 2109.

[0042] Please see Figure 7 Each connecting box 2115 has a telescopic rod 2121 fixedly installed on its inner wall. The telescopic end of each telescopic rod 2121 is fixedly connected to the side of the wedge block 2117 near the connecting spring 2116. The installation of the telescopic rod 2121 restricts the movement trajectory of the wedge block 2117, thereby preventing the wedge block 2117 from deviating from its movement trajectory and ensuring the stability of the movement of the wedge block 2117.

[0043] The specific implementation of this embodiment is as follows: In use, the worker first places the core mold body 12 on the steel reinforcement frame 11 at the designated position. Then, the worker places the base 2114 under the steel reinforcement frame 11 and outside the core mold body 12. The worker then rotates the first worm gear 2111, causing the first worm gear 2111 to drive the first worm wheel 2109 to rotate. This causes the first worm wheel 2109 to drive the rotating shaft 2108 to rotate, which in turn causes the rotating shaft 2108 to drive the connected rotating gear 2105 to rotate. This causes the rotating gear 2105 to drive the rack ring 2107 to rotate, which in turn causes the rack ring 2107 to drive the remaining rotating gears 2105 to rotate. This causes the rotating gears 2105 to drive the rack plate 2104 to move relative to the core mold body. The worker then adjusts the relative position of the rack plate 2104 according to the size of the core mold body 12, ensuring that the distance between the connecting columns 2112 and the core mold body is adjusted accordingly. The size of the core mold body 12 is matched. Then, the worker places the mounting box 2101 on the upper surface of the core mold body 12. During this process, the mounting bracket 2113 is inserted into the interior of the connecting box 2115. As the mounting bracket 2113 extends, it pushes the wedge block 2117 to move away from the mounting bracket 2113. At the same time, the wedge block 2117 compresses the connecting spring 2116. After the mounting bracket 2113 is fully inserted, the elastic force of the connecting spring 2116 causes the wedge block 2117 to engage inside the mounting bracket 2113, thereby locking the mounting bracket 2113. Meanwhile, the limiting bracket 2119 and the base 2114 cooperate to clamp the steel bars on the steel bar frame 11. By utilizing the friction between the limiting bracket 2119, the base 2114 and the steel bar frame 11, the core mold body 12 is fixed on the steel bar frame 11, thus achieving the purpose of quickly fixing and installing the core mold body 12.

[0044] Example 2: Please refer to Figure 1 , Figure 3 and Figures 6-11 The present invention provides a technical solution: a core mold fixing device for hollow concrete floor slabs. The present invention makes corresponding improvements to the technical problems mentioned in the background art. The processing mechanism 2 also includes a positioning unit 22, which is located outside the core mold body 12. The fixing unit 21 works in conjunction with the positioning unit 22. The positioning unit 22 is used to assist the fixing unit 21 in quickly positioning and installing the core mold body 12.

[0045] As a further definition of the positioning unit 22 of the present invention, the positioning unit 22 includes four clamping frames 2201. The four clamping frames 2201 respectively limit the four sides of the core mold body 12. The side of the four clamping frames 2201 away from the mounting box 2101 is fixedly connected to the inner wall of the four connecting columns 2112. The side of the four clamping frames 2201 close to the mounting box 2101 is in contact with the outer surface of the mounting box 2101. Positioning rods 2202 are fixedly installed on the side of two clamping frames 2201 that are away from each other. Positioning boxes 2203 are fixedly installed on the front of the two bases 2114. The inner wall of the positioning box 2203 is inclined, so that when the position of the base 2114 is slightly deviated, the positioning rods 2202 will be used to fix the position. The inclined surface on 02 pushes the positioning box 2203 to move, thereby correcting the position of the base 2114. Two positioning rods 2202 are respectively engaged inside the two positioning boxes 2203. A movable plate 2204 is fixedly installed on the bottom surface of each of the two bases 2114. A concave frame 2205 is provided below each of the two bases 2114. A rotating column 2206 is rotatably connected inside each of the two concave frames 2205. The outer surfaces of the two rotating columns 2206 are slidably connected to the inner walls of the two movable plates 2204. Four sliding grooves 2207 are provided on the outer surfaces of the two rotating columns 2206. Four sliding balls 2208 are rotatably connected to the inner walls of the two movable plates 2204, and each sliding ball 2208 is slidably connected inside a sliding groove 2207. The movable plate 2204 drives the slider 2208 to move, causing the slider 2208 to slide inside the slide groove 2207, thereby driving the rotating column 2206 to rotate. Fixed plates 2209 are fixedly installed on the front of both concave frames 2205. Second worm gears 2210 are provided on the front of both concave frames 2205. Six moving blocks 2211 are slidably connected to the back of each of the two second worm gears 2210. A moving column 2212 is fixedly installed on the back of each moving block 2211. Each fixed plate 2209 has a connecting groove for the moving column 2212 to slide. A hexagonal groove is provided on the back of the second worm gear 2210, allowing the six moving blocks 2211 to slide slidably connect with the second worm gear 2210. Each moving column... Both 2212 are slidably connected inside the fixed plate 2209. The front of each of the two concave frames 2205 is fixedly installed with a second placement frame 2213. The interior of each of the two second placement frames 2213 is rotatably connected with a second worm gear 2214. The outer surfaces of the two second worm gears 2214 respectively mesh with the outer surfaces of the two second worm wheels 2210. By setting up a positioning unit 22, the fixed unit 21 can use the positioning unit 22 to position and fine-tune the base 2114 during the installation process. This allows the positioning unit 22 to assist the mounting frame 2113 to enter the interior of the connecting box 2115 more quickly, further reducing the fixing and installation time of the fixed unit 21 on the core mold body 12, and thus further improving the installation efficiency of the core mold body 12.

[0046] Please see Figure 8 The inner walls of the two concave frames 2205 are fixedly equipped with slide rods 2215. The outer surfaces of the two slide rods 2215 are slidably connected to the inner walls of the two movable plates 2204. The installation of the slide rods 2215 restricts the movement trajectory of the movable plates 2204, thereby preventing the movable plates 2204 from deviating from the movement trajectory when moving, and thus ensuring the stability of the movement of the movable plates 2204.

[0047] Please see Figure 10 A rotating bearing 2216 is fixedly installed on the back of each of the two second worm gears 2210. That is, the front of the outer ring of the rotating bearing 2216 is fixedly connected to the back of the second worm gear 2210, and the back of the inner ring of the two rotating bearings 2216 is fixedly connected to the front of the two concave brackets 2205 respectively. The installation of the rotating bearing 2216 plays a role in stabilizing the second worm gear 2210, thereby ensuring the stability of the rotation of the second worm gear 2210.

[0048] The specific implementation of this embodiment is as follows: During the process of the mounting bracket 2113 moving downward and inserting into the connecting box 2115, the connecting column 2112 drives the clamping bracket 2201 and the positioning rod 2202 to move downward, so that the clamping bracket 2201 limits the outer surface of the core mold body 12. At the same time, using the inclined surface of the positioning rod 2202 and the positioning box 2203, the positioning rod 2202 drives the positioning box 2203 to move during the process of inserting into the positioning box 2203, thereby causing the positioning box 2203 to drive the base 2114 to move, thereby causing the base 2114 to be corrected in the front-back direction, so that the mounting bracket 2113 can enter the connecting box 2115 more quickly. During the movement of the base 2114... The base 2114 drives the movable plate 2204 to move, which in turn causes the movable plate 2204 to drive the sliding ball 2208 to slide inside the sliding groove 2207, thereby causing the rotating column 2206 to rotate. When the mounting frame 2113 is fully inserted into the connecting box 2115, the worker then rotates the second worm gear 2214, which drives the second worm wheel 2210 to rotate. The second worm wheel 2210 uses the hexagonal groove to drive the movable block 2211 to move towards the center of the fixed plate 2209, thereby clamping and limiting the rotating column 2206. The friction between the movable block 2211 and the rotating column 2206 is used to lock the rotating column 2206, preventing the concave frame 2205 from moving on its own.

[0049] Example 3: Please refer to Figure 3 , Figure 7 and Figures 12-14The present invention provides a technical solution: a core mold fixing device for hollow concrete floor slabs. The present invention makes corresponding improvements to the technical problems mentioned in the background art. An adjustment mechanism 3 is provided above the steel reinforcement frame 11. The processing mechanism 2 works in conjunction with the adjustment mechanism 3. The adjustment mechanism 3 is used to quickly adjust the core mold body 12 when there is a positional deviation.

[0050] As a further limitation of the adjustment mechanism 3 of the present invention, the adjustment mechanism 3 includes two sets of fixed springs 301, with two fixed springs in each set. The top ends of the two sets of fixed springs 301 are respectively fixedly connected to the inner top walls of the two fixed frames 2118. The bottom end of each fixed spring 301 is fixedly connected to the upper surface of the limiting frame 2119. The upper surface of the two limiting frames 2119 is fixedly installed with a limiting box 302. The inside of the two limiting boxes 302 is slidably connected with a movable box 303. The inside of the two movable boxes 303 is threadedly connected with a threaded rod 304. The bottom end of the two threaded rods 304 is fixedly installed with a first ball bearing 305. The inside of the two movable boxes 303 is provided with four second ball bearings 306. The outer surface of each first ball bearing 305 is in contact with the outer surface of the second ball bearing 306. Four grooves are provided on the inner wall of the limiting box 302 for the second ball bearing 306 to engage. A through hole is provided on the outer surface of the moving box 303 for the second ball bearing 306 to extend out, and the diameter of this through hole is smaller than the diameter of the second ball bearing 306, preventing the second ball bearing 306 from sliding off the moving box 303. The outer surface of each second ball bearing 306 is in contact with the inner wall of the limiting box 302. Limiting springs 307 are fixedly installed on the inner bottom walls of both moving boxes 303. Connecting plates 308 are fixedly installed on the tops of both limiting springs 307, and the upper surfaces of the two connecting plates 308 are in contact with the outer surfaces of the two first ball bearings 305, respectively. The limiting spring 307 and the connecting plate 308 serve to limit movement, preventing the second ball 306 from moving freely inside the moving box 303. The tops of both threaded rods 304 penetrate the limiting box 302 and are fixedly mounted with a rotating disk 309. By rotating the rotating disk 309, the threaded rods 304 are moved upwards, releasing the first ball 305 from its compression of the second ball 306, allowing the worker to move the limiting box 302 upwards. Placement boxes 310 are fixedly mounted on the upper surfaces of both fixed brackets 2118. Rollers 311 are slidably connected inside both placement boxes 310. The outer surface of the rotating disk 309 has equally spaced grooves for the rollers 311 to engage. Both rollers 311... The two rollers 311 are fixedly mounted on the outer surfaces of the rotating disk 309 with pull rods 312. The ends of the two pull rods 312 away from the rollers 311 extend through to the outside of the placement box 310. The two placement boxes 310 are fitted with pins 313. The bottom ends of the two pins 313 extend through the pull rods 312 and into the interior of the placement box 310. By setting the adjustment mechanism 3, the worker can adjust the position of the core mold body 12 without disassembling it after installation. This makes it easier to adjust the position of the core mold body 12 when there is a positional deviation, and further increases the installation and fixing efficiency of the core mold body 12.

[0051] Please see Figure 12Two telescopic columns 314 are fixedly installed on the inner top wall of each of the two fixed frames 2118. The telescopic end of each telescopic column 314 is fixedly connected to the upper surface of the limiting frame 2119. The installation of the telescopic column 314 plays the role of limiting the movement trajectory of the limiting frame 2119, thereby ensuring the stability of the movement of the limiting frame 2119.

[0052] Please see Figure 14 The inner bottom walls of the two movable boxes 303 are fixedly installed with telescopic shafts 315. The telescopic ends of the two telescopic shafts 315 are fixedly connected to the bottom surface of the connecting plate 308. The installation of the telescopic shafts 315 plays a role in restricting the movement trajectory of the connecting plate 308, thereby ensuring the stability of the movement of the connecting plate 308.

[0053] The specific implementation of this embodiment is as follows: When a positional deviation occurs in the front-to-back direction after the core mold body 12 is installed, the worker pulls the pin 313 out of the placement box 310. Then, the worker pulls the pull rod 312, causing the pull rod 312 to drive the roller 311 away from the rotating disk 309. This causes the rotating disk 309 to drive the threaded rod 304 to rotate, thereby causing the threaded rod 304 to move upward. This, in turn, causes the threaded rod 304 to drive the first ball 305 to move upward, releasing the first ball 305 from its limiting effect on the second ball 306. Then, the worker pulls the limiting box 302 upward, causing the limiting box 302 to slide on the outer surface of the moving box 303. This causes the limiting box 302 to drive the limiting frame 2119 to move upward. The core mold body 12 is moved upwards, thereby releasing the clamping limit on the rebar frame 11. Then, the worker corrects the position of the core mold body 12 by moving the core mold body 12 and the base 2114. After the position of the core mold body 12 is corrected, the elastic force of the fixed spring 301 is used to make the limiting frame 2119 cooperate with the base 2114 to clamp and limit the rebar frame 11. Then, the worker rotates the rotating disk 309 in the opposite direction, thereby driving the first ball 305 to limit the second ball 306, and then fixing the moving box 303 and the limiting box 302. Then, the worker clamps the roller 311 into the inside of the rotating disk 309 and inserts the pin 313 into the inside of the pull rod 312, thereby completing the correction of the position of the core mold body 12.

[0054] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0055] 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 core mold fixing device for hollow concrete floor slabs, comprising a main body mechanism (1), characterized in that: The main body mechanism (1) includes a steel bar frame (11), a core mold body (12) is provided above the steel bar frame (11), and a processing mechanism (2) is provided above the steel bar frame (11). The processing mechanism (2) includes a fixing unit (21), which is located outside the core mold body (12). The fixing unit (21) is used to quickly fix the core mold body (12) onto the steel frame (11). The processing mechanism (2) further includes a positioning unit (22), which is located outside the core mold body (12). The fixing unit (21) works in conjunction with the positioning unit (22). The positioning unit (22) is used to assist the fixing unit (21) in quickly positioning and installing the core mold body (12). An adjustment mechanism (3) is provided above the steel bar frame (11). The processing mechanism (2) works in conjunction with the adjustment mechanism (3). The adjustment mechanism (3) is used to quickly adjust the core mold body (12) that has a positional deviation. The fixing unit (21) includes a mounting box (2101), the bottom surface of which is in contact with the upper surface of the core mold body (12). A fixing ring (2102) is fixedly installed on the inner bottom wall of the mounting box (2101), and a connecting frame (2103) is fixedly installed on the inner wall of the fixing ring (2102). Four rack plates (2104) are slidably connected inside the fixing ring (2102) and the connecting frame (2103). Four rotating gears (2105) are rotatably connected to the inner bottom wall of the fixing ring (2102), and the outer surfaces of the four rotating gears (2105) respectively mesh with the outer surfaces of the four rack plates (2104). A connecting bearing (2106) is fixedly mounted on the upper surface of the connecting frame (2103). A rack ring (2107) is fixedly mounted on the upper surface of the inner ring of the connecting bearing (2106). The outer surfaces of the four rotating gears (2105) mesh with the inner wall of the rack ring (2107). A rotating shaft (2108) is fixedly mounted on the upper surface of one of the rotating gears (2105). The top end of the rotating shaft (2108) passes through the mounting box (2101) and is fixedly mounted with a first worm gear (2109). A first placement frame (2110) is fixedly mounted on the upper surface of the mounting box (2101). The first placement frame (2110) rotates internally. A first worm gear (2111) is connected, and the outer surface of the first worm gear (2111) meshes with the outer surface of the first worm wheel (2109). Connecting posts (2112) are fixedly installed on the sides of the four rack plates (2104) that are away from each other. Mounting brackets (2113) are fixedly installed on the sides of two of the connecting posts (2112) that are away from the mounting box (2101). Two bases (2114) are provided below the steel reinforcement frame (11). The inner walls of the two bases (2114) are in contact with the outer surface of the steel reinforcement frame (11). Four connecting boxes (2115) are fixedly installed on the upper surfaces of the two bases (2114). Each of the four rack plates (2104) has a connecting post (2115) on its outer surface. The mounting brackets (2113) are all snapped into the interior of the connecting box (2115). Each connecting box (2115) has a connecting spring (2116) fixedly installed on its inner wall. Each connecting spring (2116) has a wedge block (2117) fixedly installed at one end near the mounting bracket (2113). Each wedge block (2117) is snapped into the interior of the mounting bracket (2113). The upper surfaces of the two bases (2114) are fixedly installed with fixing brackets (2118). The interior of the two fixing brackets (2118) is provided with a limit bracket (2119). The inner walls of the two limit brackets (2119) are in contact with the outer surface of the steel bar frame (11). The positioning unit (22) includes four clamping frames (2201). The side of each clamping frame (2201) away from the mounting box (2101) is fixedly connected to the inner wall of one of the four connecting columns (2112). The side of each clamping frame (2201) close to the mounting box (2101) is in contact with the outer surface of the mounting box (2101). Positioning rods (2202) are fixedly installed on the side of each of the two clamping frames (2201) that are away from each other. Positioning rods (2202) are fixedly installed on the front of each of the two bases (2114). The system is equipped with positioning boxes (2203), and two positioning rods (2202) are respectively snapped into the interior of the two positioning boxes (2203). Movable plates (2204) are fixedly installed on the bottom surfaces of the two bases (2114). Concave frames (2205) are provided below the two bases (2114). Rotating columns (2206) are rotatably connected inside the two concave frames (2205). The outer surfaces of the two rotating columns (2206) are slidably connected to the inner walls of the two movable plates (2204). The outer surface of each movable column (2206) is provided with four sliding grooves (2207). The inner walls of each of the two movable plates (2204) are rotatably connected with four sliding balls (2208). Each sliding ball (2208) is slidably connected inside the sliding groove (2207). The front of each of the two concave frames (2205) is fixedly mounted with a fixed plate (2209). The front of each of the two concave frames (2205) is provided with a second worm gear (2210). The back of each of the two second worm gears (2210) is slidably connected with six moving blocks. (2211) Each of the moving blocks (2211) has a moving column (2212) fixedly installed on its back side. Each of the moving columns (2212) is slidably connected to the inside of the fixed disk (2209). The front of the two concave frames (2205) is fixedly installed with a second placement frame (2213). The inside of the two second placement frames (2213) is rotatably connected with a second worm (2214). The outer surfaces of the two second worms (2214) respectively mesh with the outer surfaces of the two second worm wheels (2210).

2. The core mold fixing device for a hollow concrete floor slab according to claim 1, characterized in that: A fixed bearing (2120) is fixedly connected to the upper surface of the mounting box (2101), and the upper surface of the inner ring of the fixed bearing (2120) is fixedly connected to the bottom surface of the first worm gear (2109).

3. The core mold fixing device for a hollow concrete floor slab according to claim 1, characterized in that: Each of the connecting boxes (2115) has a telescopic rod (2121) fixedly installed on its inner wall, and the telescopic end of each telescopic rod (2121) is fixedly connected to the side of the wedge block (2117) near the connecting spring (2116).

4. The core mold fixing device for a hollow concrete floor slab according to claim 1, characterized in that: The inner walls of the two concave frames (2205) are fixedly equipped with slide rods (2215), and the outer surfaces of the two slide rods (2215) are slidably connected to the inner walls of the two movable plates (2204).

5. The core mold fixing device for a hollow concrete floor slab according to claim 1, characterized in that: The back of each of the two second worm gears (2210) is fixedly mounted with a rotating bearing (2216), and the back of the inner ring of each of the two rotating bearings (2216) is fixedly connected to the front of each of the two concave frames (2205).

6. The core mold fixing device for a hollow concrete floor slab according to claim 1, characterized in that: The adjusting mechanism (3) includes two sets of fixed springs (301), with two fixed springs in each set. The top ends of the two sets of fixed springs (301) are fixedly connected to the inner top walls of the two fixed frames (2118), and the bottom end of each fixed spring (301) is fixedly connected to the upper surface of the limiting frame (2119). The upper surfaces of the two limiting frames (2119) are fixedly installed with limiting boxes (302), and the interiors of the two limiting boxes (302) are slidably connected with movable boxes (3). 03), both of the two movable boxes (303) are internally threaded with threaded rods (304), and the bottom ends of the two threaded rods (304) are fixedly installed with first ball bearings (305). Each of the two movable boxes (303) is internally provided with four second ball bearings (306). The outer surface of each first ball bearing (305) contacts the outer surface of the second ball bearing (306), and the outer surface of each second ball bearing (306) contacts the inner wall of the limiting box (302). The inner bottom wall of each of the two limiting springs (307) is fixedly installed with a limiting spring (307). The top of each of the two limiting springs (307) is fixedly installed with a connecting plate (308). The upper surface of each of the two connecting plates (308) is in contact with the outer surface of each of the two first balls (305). The top of each of the two threaded rods (304) passes through the limiting box (302) and is fixedly installed with a rotating disk (309). The upper surface of each of the two fixing frames (2118) is fixedly installed with a placement box (310). The inner wall of each of the two placement boxes (310) is fixedly installed with a limiting spring (307). Each part is slidably connected with rollers (311), and both rollers (311) are engaged inside the rotating disk (309). Both rollers (311) are fixedly mounted with pull rods (312) on their outer surfaces. The ends of the two pull rods (312) away from the rollers (311) extend through to the outside of the placement box (310). Both placement boxes (310) are engaged with pins (313) inside. The bottom ends of the two pins (313) extend through the pull rods (312) and into the interior of the placement box (310).

7. A core mold fixing device for hollow concrete floor slabs according to claim 6, characterized in that: Two telescopic columns (314) are fixedly installed on the inner top walls of the two fixed frames (2118), and the telescopic end of each telescopic column (314) is fixedly connected to the upper surface of the limiting frame (2119).

8. A core mold fixing device for hollow concrete floor slabs according to claim 6, characterized in that: The inner bottom walls of the two movable boxes (303) are fixedly installed with telescopic shafts (315), and the telescopic ends of the two telescopic shafts (315) are fixedly connected to the bottom surface of the connecting plate (308).

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