Concrete stand column repairing tool

Abstract

The utility model discloses a concrete stand column repairing tool which comprises two pouring formworks, the two pouring formworks are horizontal steel formworks with U-shaped sections, two outer protruding plates are arranged at the butt joint positions of the two pouring formworks, the two outer protruding plates are locked through bolts after being in butt joint, a cavity structure is formed between the two pouring formworks, and the two outer protruding plates are connected through bolts. A feeding hopper is arranged at the top of the cavity structure, a plurality of reinforcing vertical strips are vertically welded outside the two pouring formworks, a plurality of cross beams are welded outside the reinforcing vertical strips, the cross beams on the left side and the right side abut against two pressing blocks in a front-back symmetry mode, each pressing block is rotationally connected with a second locking screw, and the second locking screws are spirally connected to a cantilever plate. The two cantilever plates are symmetrically arranged on the hoop, the hoop is fixedly connected to an ejector rod or a base of the jack, and the upper row of second locking screws and the lower row of second locking screws are arranged in a staggered mode. The pouring formwork structure is good in forming quality, is flush with the surface of an existing concrete stand column, and is good in modification quality.

Description

Technical Field

[0001] This utility model belongs to the field of concrete column repair technology and relates to a concrete column repair tool. Background Technology

[0002] During the construction of buildings, there are often concrete columns inside. Some smaller concrete columns may be damaged by impacts due to improper construction, resulting in bent and stretched steel bars. Removing and recasting them is costly. Therefore, a repair formwork is used for pouring and repair. However, if wooden formwork is directly attached to the concrete during the repair process, the wooden formwork is not easy to support stably, resulting in poor stability and adhesion. This leads to a step between the repaired surface and the existing concrete column surface, resulting in poor repair quality. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a concrete column repair tool that can ensure high overall strength and rigidity, stable structure, good molding quality, flush with the existing concrete column surface, and good repair quality.

[0004] The technical solution adopted by this utility model is as follows: a concrete column repair tool, including two pouring templates, both of which are horizontal U-shaped steel molds. Two external convex plates are provided at the joint of the two pouring templates. After the two external convex plates are joined, they are locked with bolts. A cavity structure is formed between the two pouring templates. A feeding hopper is provided at the top of the cavity structure. Multiple reinforcing vertical bars are welded to the outside of the two pouring templates. Multiple horizontal beams are welded to the outside of the multiple reinforcing vertical bars. The multiple horizontal beams on the left and right sides are symmetrically abutted against two pressure blocks. Each pressure block is rotatably connected to a locking screw. The locking screw is spirally connected to the cantilever plate. The two cantilever plates are symmetrically arranged on the clamp. The clamp is fixedly connected to the top rod or base of the jack. The upper and lower rows of locking screws are staggered.

[0005] Furthermore, the two casting templates mentioned above are equipped with positioning pins at their joints.

[0006] Furthermore, the aforementioned jacks are in pairs, symmetrically arranged on both sides of the locking sleeve assembly, with the upper end abutting against the locking sleeve assembly and the lower end abutting against the ground. The locking sleeve assembly is fixedly connected to the concrete column.

[0007] Furthermore, the aforementioned locking sleeve assembly includes two symmetrically arranged U-shaped cross-section sleeves. A convex support auxiliary plate is provided around the lower end of the sleeve, and the support auxiliary plate extends outward to form a support platform. Flanges are provided at the joints between the sleeves. Multiple locking screws are used to lock the two corresponding flanges together. One end of the locking screw is hinged to one flange, and the other end is inserted into the U-shaped groove on the corresponding flange on the other side and then locked with a nut. The upper end of the jack rests against the support platform.

[0008] Furthermore, multiple reinforcing ribs are provided between the aforementioned support platform and the outer wall of the package, and the reinforcing ribs are also connected to the annular step at the top of the package.

[0009] Furthermore, a rubber layer is provided inside the aforementioned package.

[0010] Furthermore, the inlet pipes of the two jacks are connected to a synchronizing valve, which in turn is connected to a hydraulic pump.

[0011] Compared with the prior art, the advantages of this utility model are as follows:

[0012] (1) The casting template structure adopted in this utility model has high overall strength and rigidity, stable structure, quick installation, easy assembly and disassembly, and is easy to reuse, reducing costs. The modular structure makes it convenient to disassemble and transport.

[0013] (2) The locking sleeve assembly is used in conjunction with two symmetrical hydraulic cylinders to lift the support synchronously. The support is stable and reliable, and the operation is easy. After the concrete column of the damaged part is poured and repaired, the set strength is greatly improved. Then, the two hydraulic cylinders are released to complete the auxiliary lifting effect of the pouring and repair. The upper concrete section and the repaired concrete section on the lower side can form a good compressive contact, avoiding the inability to achieve reliable support of the concrete column after the lower repair part is poured due to the suspension of the upper concrete section.

[0014] (3) The bottom of the concrete column is locked by the locking component, which fully wraps and locks it. The contact area is large and the support stability is good. It avoids damage to the bottom of the concrete column caused by insufficient support. The jack applies pre-tightening force to support it, which has high support stability. The extended concrete column section after disassembly has good compressive strength and will not sink. Attached Figure Description

[0015] Figure 1 Schematic diagram of the support structure for the extended pouring section of the concrete column;

[0016] Figure 2 A top-view sectional view of the locking structure for the concrete column.

[0017] Figure 3 A top view of the formwork structure for casting;

[0018] Figure 4 This is a schematic diagram of the connection between the push rod and the pressure block. Detailed Implementation

[0019] The utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] Example 1: As Figures 1-4As shown, a concrete column repair fixture includes two casting templates 214. The two casting templates 214 are horizontal U-shaped steel molds. Each casting template 214 has two outwardly projecting plates 217 at its joint. The two outwardly projecting plates 217 are locked together with bolts 216, forming a cavity structure between the two casting templates 214. The cross-section of the cavity structure is consistent with the existing concrete column cross-section. A feeding hopper 218 is provided at the top of the cavity structure. Multiple reinforcing vertical bars 219 are welded vertically to the outside of the two casting templates 214. Multiple horizontal beams 220 are welded to the outside of the reinforcing vertical bars 219. The multiple horizontal beams 220 on the left and right sides are connected front and rear. Two pressure blocks 221 are symmetrically abutted against each other. Each pressure block 221 is rotatably connected to a locking screw 222, which is spirally connected to a cantilever plate 223. The two cantilever plates 223 are symmetrically arranged on a clamp 224, which is fixedly connected to the top rod or base of the jack 202. The upper and lower rows of locking screws 222 are staggered. The casting template of this structure has high overall strength and rigidity, stable structure, quick installation, easy assembly and disassembly, and is easy to reuse, reducing costs. The modular structure makes it easy to disassemble and transport. The two casting templates 214 are equipped with positioning pins at the joint, which can achieve quick positioning.

[0021] Specifically, two jacks 202 are used, symmetrically arranged on both sides of the locking sleeve assembly 201. The upper end abuts against the locking sleeve assembly 201, and the lower end abuts against the ground. The locking sleeve assembly 201 is fixedly connected to the concrete column 203. The locking sleeve assembly, together with two symmetrical hydraulic cylinders, is used to lift and support the column synchronously. The support is stable and reliable, and the operation is easy. After the concrete column of the damaged part has been poured and repaired to a certain strength, the two hydraulic cylinders are released to complete the auxiliary lifting function of the pouring and repair.

[0022] The locking sleeve assembly 201 includes two symmetrically arranged U-shaped cross-section sleeves 204. A protruding support plate 205 is provided around the lower end of each sleeve 204, extending outwards to form a support platform 206. Flanges 209 are provided at the joints between the sleeves 204. Multiple locking screws 210 are used to lock the two corresponding flanges 209 together. One end of each locking screw 210 is hinged to one flange 209, and the other end is engaged with a U-shaped groove 211 on the corresponding flange 209 on the other side, then locked with a nut 212. The upper end of the jack 202 rests against the support platform 206. Multiple reinforcing ribs 207 are installed between the support platform 206 and the outer wall of the wrapping sleeve 206. The reinforcing ribs 207 are also connected to the annular step 208 at the top of the wrapping sleeve 204. A rubber layer 213 is installed inside the wrapping sleeve 204. The inlet pipes of the two jacks 202 are connected to the synchronization valve, which is connected to the hydraulic pump. The bottom of the concrete column is locked by the locking assembly, which fully wraps and locks the column. The contact area is large, the support stability is good, and the damage to the bottom of the concrete column caused by insufficient support is avoided. The jacks apply pre-tightening force to support the column, which has high support stability. The extended concrete column section after disassembly has good compressive strength and will not sink.

[0023] The lower end of the concrete column 203 is locked using a locking sleeve assembly 201. Two jacks 202 are used to lift the column simultaneously, applying a pre-tightening lifting force. When the lifting force reaches the safe support threshold, the rock below the concrete column 203 is cut, broken, and cleared. After completion, a reinforcing cage and a pouring formwork 214 are arranged below the concrete column 203. Two pouring formworks 214 are used, and the two pouring formworks 214 have a symmetrical U-shaped cross-section structure. After the two pouring formworks 214 are joined together, the extended concrete column is poured. After solidification and reaching the set time, the formwork is removed, and the extended section of the concrete column is water-cured. When the concrete of the column reaches the set strength, the jacks are released, the locking sleeve assembly is removed, and the construction of the extended concrete column is completed.

[0024] In the construction of the damaged section at the bottom of the aforementioned concrete column, locking sleeve components are used for locking, and jacks are used for auxiliary support. During the cleaning of the damaged section, the upper part of the concrete column will not be affected. After cleaning, the lower section of the concrete column is reinforced with steel cages, and formwork and concrete are poured. This can improve the construction efficiency and quality of the extended section at the bottom of the concrete column, and avoid sinking that would result in no support. Two auxiliary support sleeves are connected, and a support auxiliary plate with an inward protrusion at the bottom is embedded in part of the bottom of the concrete column (a groove needs to be cut in advance, the groove depth is greater than the support platform, and the groove depth can ensure that the horizontal steel bars cover the groove, improving the support stability). The locking screws are used to lock the entire locking component, and the jacks are used for support and fixation, thus forming an overall support structure. The support is stable and reliable, and the support is carried out simultaneously with balanced force. Moreover, the jacks can also serve as supports for the installation of the formwork. The formwork on one side of the jack is supported by pads, eliminating the need for a separate support structure and improving the layout efficiency.

[0025] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A tooling for repairing concrete columns, characterized in that, The system includes two casting templates (214), both of which are horizontal U-shaped steel molds. Each casting template (214) has two external convex plates (217) at its joint. The two external convex plates (217) are bolted together (216) to lock the joint. A cavity structure is formed between the two casting templates (214), and a feed hopper (218) is installed at the top of the cavity structure. Multiple reinforcing vertical bars (219) are welded vertically to the outside of the two casting templates (214). 9) Multiple crossbeams (220) are welded on the outside. The multiple crossbeams (220) on the left and right sides are symmetrically abutted against two pressure blocks (221). Each pressure block (221) is rotatably connected to a locking screw (222). The locking screw (222) is spirally connected to the cantilever plate (223). The two cantilever plates (223) are symmetrically arranged on the clamp (224). The clamp (224) is fixedly connected to the top rod or base of the jack (202). The upper and lower rows of locking screws (222) are staggered.

2. The concrete column repair tool according to claim 1, characterized in that, The two casting templates (214) are equipped with positioning pins at the joint.

3. The concrete column repair tool according to claim 1, characterized in that, Two jacks (202) are arranged symmetrically on both sides of the locking sleeve assembly (201), with the upper end abutting against the locking sleeve assembly (201) and the lower end abutting against the ground. The locking sleeve assembly (201) is fixedly connected to the concrete column (203).

4. The concrete column repair tool according to claim 3, characterized in that, The locking sleeve assembly (201) includes two symmetrically arranged U-shaped cross-section sleeves (204). The lower end of the sleeve (204) is provided with an inwardly protruding support auxiliary plate (205). The support auxiliary plate (205) extends outward to form a support platform (206). Flanges (209) are provided at the joints between the sleeves (204). The two corresponding flanges (209) are locked together by multiple locking screws (210). One end of the locking screw (210) is hinged to one side flange (209), and the other end is inserted into the U-shaped groove (211) on the corresponding other side flange (209) and then locked with a nut (212). The upper end of the jack (202) rests against the support platform (206).

5. The concrete column repair tool according to claim 4, characterized in that, Multiple reinforcing ribs (207) are provided between the support platform (206) and the outer wall of the wrapping sleeve (204), and the reinforcing ribs (207) are also connected to the annular step (208) at the top of the wrapping sleeve (204).

6. The concrete column repair tool according to claim 4, characterized in that, A rubber layer (213) is provided inside the sheath (204).

7. The concrete column repair tool according to claim 4, characterized in that, The inlet pipes of the two jacks (202) are connected to the synchronization valve, which is connected to the hydraulic pump.

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