Lifting device of concrete stand column repairing tool

Abstract

The utility model discloses a lifting device of a concrete stand column repairing tool, which comprises a locking sleeve assembly and jacks, the locking sleeve assembly is fixedly connected on a concrete stand column, the number of the jacks is two, the jacks are symmetrically arranged on two sides of the locking sleeve assembly, the upper ends of the jacks abut against the locking sleeve assembly, and the lower ends of the jacks abut against the ground. The locking sleeve assembly is matched with the two symmetrical hydraulic cylinders to synchronously lift and support, the support is stable and reliable, the operation is easy, and after the pouring and repairing of the concrete stand column at the damaged part are completed and the strength is greatly set, the two hydraulic cylinders are loosened, so that the auxiliary lifting function of the pouring and repairing can be completed.

Description

Technical Field

[0001] This utility model belongs to the field of concrete column repair technology, and relates to a lifting device for concrete column repair tooling. 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 the formwork is directly attached to the repair formwork and poured, the weight of the upper concrete section will press down on the unformed repaired concrete section during the pouring process. This will cause the concrete to solidify and not provide good support, resulting in poor reliability of the top support. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a lifting device for a concrete column repair tool, which can lift and support the upper concrete section, and ensure that after the concrete section to be repaired has been poured and solidified to the set strength and the lifting device is removed, the upper concrete section and the lower repaired concrete section can form a good compressive contact, thus avoiding the inability to reliably support the concrete column after the lower repair part is poured while the upper concrete section is suspended.

[0004] The technical solution adopted by this utility model is as follows: a lifting device for a concrete column repair tool, including a locking sleeve assembly and jacks. The locking sleeve assembly is fixedly connected to the concrete column. Two jacks are used, 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.

[0005] 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.

[0006] 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.

[0007] Furthermore, a rubber layer is provided inside the aforementioned package.

[0008] Furthermore, the inlet pipes of the two jacks are connected to a synchronizing valve, which in turn is connected to a hydraulic pump.

[0009] Compared with the prior art, the advantages of this utility model are as follows:

[0010] (1) 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. After the two hydraulic cylinders are released, the auxiliary lifting effect of the pouring and repair can be completed. 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.

[0011] (2) 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

[0012] Figure 1 Schematic diagram of the support structure for the extended pouring section of the concrete column;

[0013] Figure 2 A top-view sectional view of the locking structure for the concrete column.

[0014] Figure 3 A top view of the formwork structure for casting;

[0015] Figure 4 This is a schematic diagram of the connection between the push rod and the pressure block. Detailed Implementation

[0016] The utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0017] Example 1: As Figures 1-4 As shown, a lifting device for a concrete column repair tool includes a locking sleeve assembly 201 and jacks 202. The locking sleeve assembly 201 is fixedly connected to the concrete column 203. Two jacks 202 are symmetrically arranged 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, in conjunction with two symmetrical hydraulic cylinders, synchronously lifts and supports the column, providing stable and reliable support. The operation is easy. After the concrete column at 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.

[0018] The locking sleeve assembly 201 includes two symmetrically arranged U-shaped cross-section wrapping sleeves 204. The lower end of the wrapping 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 wrapping sleeves 204. Multiple locking screws 210 are used to lock the two corresponding flanges 209. 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 abuts against the support platform 206. Multiple reinforcing ribs 207 are installed between the support platform 205 and the outer wall of the wrapping sleeve 204. 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 provides all-round wrapping and locking. 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.

[0019] 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.

[0020] The repair fixture includes two casting templates 214, which are horizontal U-shaped steel molds. After being joined together, they are locked with bolts 216 at the joint with two externally protruding plates 217 to form a cavity structure. The cross-section of the cavity structure is consistent with the existing concrete column cross-section. A feed 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 symmetrically abut against two pressure blocks 221. Each pressure block 221... The 21-section is rotatably connected to a locking screw 222, which is spirally connected to the cantilever plate 223. The two cantilever plates 223 are symmetrically arranged on the 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 provided with positioning pins at the joint, which can achieve quick positioning.

[0021] 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.

[0022] 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 lifting device for a concrete column repair tool, characterized in that, It includes a locking sleeve assembly (201) and a jack (202). The locking sleeve assembly (201) is fixedly connected to the concrete column (203). 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.

2. The lifting device for a concrete column repair tool according to claim 1, 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).

3. The lifting device for a concrete column repair tool according to claim 2, 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).

4. The lifting device for a concrete column repair tool according to claim 2, characterized in that, A rubber layer (213) is provided inside the sheath (204).

5. The lifting device for a concrete column repair tool according to claim 2, 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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