A cooling tower cylinder wall construction joint roughening device

Abstract

The utility model provides a kind of cooling tower cylinder wall construction joint roughening device, belong to the cooling tower construction technical field of thermal power plant.The cooling tower cylinder wall construction joint roughening device includes support structure and roughening structure.The support structure includes rotating rod and extension column, one end of the bracing bar is fixed with connecting plate, the rotating rod rotation is penetrated in the inside of the connecting plate, the both ends surface of the rotating rod is circumferentially provided with slot, the extension column is circumferentially fixed with the extension insert strip matched with the slot in one side, the extension insert strip is inserted in the inside of the slot, the surface of the assembly roller and the end roller is circumferentially installed with roughening cone, the end of the fixing piece is closely attached with the extension column.The utility model can cope with the construction joint of different thickness in the process of roughening, to improve the efficiency of roughening construction, make roughing more uniform guarantee the processing quality of construction joint, use more flexible and convenient.

Description

Technical Field

[0001] This utility model relates to the field of construction technology for cooling towers in thermal power plants, and more specifically, to a roughening device for construction joints in cooling tower cylinder walls. Background Technology

[0002] Natural draft cooling towers, as an important structure in thermal power plants, cool circulating water. Their cylindrical walls are characterized by a tall, thin-walled, circular shell with gradual changes in shape. Construction is carried out in sections using an attached tripod-frame movable formwork process, with materials transported vertically via a hydraulic jacking platform installed inside the tower. Each formwork section is typically 1.3m or 1.5m high.

[0003] Currently, the horizontal construction joints between every two sections of the cooling tower wall need to be roughened to ensure a tight bond between the concrete surfaces. The conventional approach is to use reinforcing bars to groove the joints or to brush away the cement slurry from the concrete surface. However, roughening the construction joints is a labor-intensive process, and conventional methods are inefficient, affecting the on-site construction progress. Furthermore, uneven joint treatment makes it difficult to guarantee the quality of the joint treatment, which is detrimental to the bonding of the concrete between the two sections. This can easily lead to leakage along the construction joints after the project is put into operation. Therefore, it is necessary to propose a roughening device for the construction joints of the cooling tower wall to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a roughening device for construction joints in cooling tower walls. It aims to improve the conventional construction joint treatment methods, which are inefficient, affect the on-site construction progress, and result in uneven treatment of construction joints, making it difficult to guarantee the quality of construction joint treatment. This is not conducive to the bonding of concrete between the two slabs and can easily lead to leakage problems along the construction joints after the project is put into operation.

[0005] This utility model is implemented as follows:

[0006] This utility model provides a roughening device for construction joints of cooling tower walls, including a support structure and a roughening structure.

[0007] The support structure includes a strut, a rotating rod, and an extension column. A connecting plate is fixed to one end of the strut. The rotating rod rotates through the interior of the connecting plate. Slots are circumferentially formed on both ends of the rotating rod. An extension strip matching the slot is circumferentially fixed to one side of the extension column and inserted into the slot. Keyways are formed on the surfaces of the rotating rod, the extension column, and the extension strip. An adjustment part is installed inside the extension column and is mounted within the rotating rod. The roughening structure includes an assembly roller and an end roller. Roughening cones are circumferentially mounted on the surfaces of the assembly roller and the end roller. Both the assembly roller and the end roller are sleeved on the rotating rod. A collar is fixed to one side of the end roller, and a fixing member is fixed to the collar. The end of the fixing member is in close contact with the extension column.

[0008] In one embodiment of this utility model, the other end of the support rod is fitted with an anti-slip sleeve, and the surface of the anti-slip sleeve has anti-slip protrusions.

[0009] In one embodiment of the present invention, a limiting groove is formed inside the slot, and a limiting slider matching the limiting groove is formed on the extension strip, and the limiting slider is slidably connected inside the limiting groove.

[0010] In one embodiment of this utility model, the adjusting part includes a threaded rod and a fixing block. The threaded rod rotatably passes through the extension column and is threadedly connected to the inside of the rotating rod. The fixing block is fixed to the end of the threaded rod, and a hexagonal groove is provided on one side of the fixing block.

[0011] In one embodiment of this utility model, the assembly roller and the end roller are provided with through holes, and key blocks that match the keyway are fixed on the assembly roller and the end roller, and the key blocks are slidably connected in the keyway.

[0012] In one embodiment of this utility model, the fixing member includes a fixing post and an internal hexagon threaded post. The fixing post is fixed on the collar, and the internal hexagon threaded post is threaded through the interior of the fixing post. The internal hexagon threaded post passes through the collar and is tightly attached to the extension post.

[0013] In one embodiment of this utility model, the fixing post and the collar are provided with threaded holes that match the internal hexagonal thread post.

[0014] The beneficial effects of this utility model are as follows: The cooling tower wall construction joint roughening device obtained by the above design involves inserting a hexagonal wrench into the hexagonal groove and rotating the threaded rod. During the rotation of the threaded rod, the extension column and extension strip extend outwards. After extending to a suitable length, the assembly roller is assembled by correspondingly engaging it with the keyway using a key block. Finally, the end roller is also correspondingly engaged with the keyway using a key block. After the assembly roller and end roller are fitted onto the rotating rod and extension strip, a hexagonal wrench is inserted into the internal hexagonal threaded column and rotated, causing the end of the internal hexagonal threaded column to press against the surface of the extension column to fix the end roller. Then, the support rod is held and rolled on the plane of the construction joint, and roughening is performed using a roughening cone. This allows for roughening of construction joints of varying thicknesses, thereby improving the efficiency of roughening construction, ensuring more uniform roughening and guaranteeing the quality of construction joint treatment, and making the device more flexible and convenient to use. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a first-view structural schematic diagram of the cooling tower wall construction joint roughening device provided in this embodiment of the utility model;

[0017] Figure 2 A second-view structural schematic diagram of the cooling tower wall construction joint roughening device provided for an embodiment of this utility model;

[0018] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 A first-view exploded structural diagram of the cooling tower wall construction joint roughening device provided for an embodiment of this utility model.

[0020] Figure 5 A second-view exploded structural diagram of the cooling tower wall construction joint roughening device provided in this embodiment of the utility model;

[0021] Figure 6 A schematic diagram of the assembly roller structure of the cooling tower wall construction joint roughening device provided for an embodiment of this utility model.

[0022] In the diagram: 100-Support structure; 110-Strut; 111-Anti-slip sleeve; 120-Connecting plate; 130-Rotating rod; 131-Slot; 132-Limiting groove; 140-Keyway; 150-Extension column; 151-Extension insert; 152-Limiting slider; 160-Adjusting part; 161-Threaded rod; 162-Fixing block; 163-Hexagonal groove; 200-Roughened structure; 210-Assembly roller; 211-Through hole; 212-Key block; 220-Roughened cone; 230-End roller; 231-Collar; 240-Fixing component; 241-Fixing column; 242-Internal hexagonal threaded column. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] Example

[0025] Please see Figures 1-6 This utility model provides a technical solution: a roughening device for construction joints of cooling tower cylinder walls, including a support structure 100 and a roughening structure 200.

[0026] Please see Figures 1-5 The support structure 100 includes a strut 110, a rotating rod 130, and an extension column 150. A connecting plate 120 is fixed to one end of the strut 110. The rotating rod 130 rotatably passes through the interior of the connecting plate 120. A bearing is interference-fitted to the surface of the rotating rod 130, and the bearing is embedded inside the connecting plate 120, facilitating the rotation of the rotating rod 130. Slots 131 are circumferentially formed on both ends of the rotating rod 130. An extension strip 151 matching the slot 131 is circumferentially fixed to one side of the extension column 150 and inserted into the slot 131. Keyways 140 are formed on the surfaces of the rotating rod 130, the extension column 150, and the extension strip 151. An adjustment part 160 is installed inside the extension column 150, and the adjustment part 160 is installed within the rotating rod 130.

[0027] The other end of the support rod 110 is fitted with an anti-slip sleeve 111. The surface of the anti-slip sleeve 111 has anti-slip protrusions, which can increase the friction of gripping and make the grip more stable. A limiting groove 132 is formed inside the slot 131. A limiting slider 152 matching the limiting groove 132 is formed on the extension strip 151. The limiting slider 152 is slidably connected inside the limiting groove 132. The setting of the limiting groove 132 and the limiting slider 152 can prevent the extension strip 151 from disengaging from the rotating rod 130.

[0028] The adjusting part 160 includes a threaded rod 161 and a fixing block 162. The threaded rod 161 is rotatably threaded through the extension column 150 and connected to the inside of the rotating rod 130. A bearing is interference-fitted onto the threaded rod 161 and is embedded inside the extension column 150, which facilitates the rotation of the threaded rod 161. At the same time, the inside of the rotating rod 130 is provided with a threaded hole that matches the threaded rod 161. The fixing block 162 is fixed to the end of the threaded rod 161. A hexagonal groove 163 is provided on one side of the fixing block 162, which allows a hexagonal wrench to be inserted to rotate the fixing block 162.

[0029] Please see Figures 1-3 and Figure 6 The roughening structure 200 includes an assembly roller 210 and an end roller 230. The surfaces of the assembly roller 210 and the end roller 230 are circumferentially equipped with roughening cones 220. Several roughening cones 220 are provided on the assembly roller 210. The assembly roller 210 and the end roller 230 are both sleeved on the rotating rod 130. A collar 231 is fixed on one side of the end roller 230. A fixing member 240 is fixed on the collar 231. The end of the fixing member 240 is in close contact with the extension column 150.

[0030] The assembly roller 210 and the end roller 230 have through holes 211 inside. Key blocks 212 matching the keyway 140 are fixed on the assembly roller 210 and the end roller 230. The key blocks 212 are slidably connected in the keyway 140. The keyway 140 and the key blocks 212 are used to limit the movement of the assembly roller 210 and the end roller 230, thus making the rotational roughening more stable. The fixing member 240 includes a fixing post 241 and an internal hexagonal threaded post 242. The fixing post 241 is fixed to the collar 231. The internal hexagonal threaded post 242 is threaded through the interior of the fixing post 241 and passes through the collar 231, tightly fitting against the extension post 150. The fixing post 241 and the collar 231 have threaded holes matching the internal hexagonal threaded post 242. The tight fit between the internal hexagonal threaded post 242 and the extension post 150 allows the end roller 230 to be fixed.

[0031] Specifically, the working principle of the cooling tower wall construction joint roughening device is as follows: During use, a hexagonal wrench is inserted into the hexagonal groove 163 to rotate the threaded rod 161. During the rotation of the threaded rod 161, the extension column 150 and the extension insert 151 extend outwards. Once extended to the appropriate length, the assembly roller 210 is fitted onto the keyway 140 using the key block 212. Finally, the end roller 230 is fitted onto the keyway 140 using the key block 212. When the assembly roller 210 and the end roller 230 are fitted onto the rotating rod 130 and the extension insert 151... After the insert strip 151 is applied, a hex wrench is inserted into the internal hexagon threaded post 242 and rotated to press the end of the internal hexagon threaded post 242 against the surface of the extension post 150 and fix it with the end roller 230. Then, the support rod 110 is held and rolled on the plane of the construction joint, and the roughening operation is performed by the roughening cone 220. In this way, construction joints of different thicknesses can be handled during the roughening process, which helps to improve the efficiency of roughening construction, make roughening more uniform, ensure the treatment quality of the construction joint, and make the use more flexible and convenient.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A roughening device for construction joints of a cooling tower wall, comprising a support structure (100) and a roughening structure (200) mounted on the support structure (100), characterized in that, The support structure (100) includes a strut (110), a rotating rod (130), and an extension column (150). One end of the strut (110) is fixed with a connecting plate (120). The rotating rod (130) rotates through the interior of the connecting plate (120). The two ends of the rotating rod (130) are provided with slots (131) in a circumferential direction. One side of the extension column (150) is fixed with an extension strip (151) that matches the slot (131). The extension strip (151) is inserted into the interior of the slot (131). The surfaces of the rotating rod (130), the extension column (150), and the extension strip (151) are provided with keyways (140). An adjustment part (160) is installed inside the extension column (150). The adjustment part (160) is installed in the rotating rod (130). The roughening structure (200) includes an assembly roller (210) and an end roller (230). The surfaces of the assembly roller (210) and the end roller (230) are circumferentially mounted with roughening cones (220). The assembly roller (210) and the end roller (230) are both sleeved on the rotating rod (130). A collar (231) is fixed on one side of the end roller (230). A fixing member (240) is fixed on the collar (231). The end of the fixing member (240) is in close contact with the extension column (150).

2. The cooling tower wall construction joint roughening device according to claim 1, characterized in that, The other end of the support rod (110) is fitted with an anti-slip sleeve (111), and the surface of the anti-slip sleeve (111) has anti-slip protrusions.

3. The cooling tower wall construction joint roughening device according to claim 1, characterized in that, The slot (131) has a limiting groove (132) inside, and the extension strip (151) has a limiting slider (152) that matches the limiting groove (132). The limiting slider (152) is slidably connected inside the limiting groove (132).

4. The cooling tower wall construction joint roughening device according to claim 1, characterized in that, The adjusting part (160) includes a threaded rod (161) and a fixing block (162). The threaded rod (161) rotates through the extension column (150) and is threaded into the interior of the rotating rod (130). The fixing block (162) is fixed to the end of the threaded rod (161). A hexagonal groove (163) is provided on one side of the fixing block (162).

5. The cooling tower wall construction joint roughening device according to claim 1, characterized in that, The assembly roller (210) and the end roller (230) have through holes (211) inside. The assembly roller (210) and the end roller (230) are fixed with key blocks (212) that match the keyway (140). The key blocks (212) are slidably connected in the keyway (140).

6. The cooling tower wall construction joint roughening device according to claim 1, characterized in that, The fastener (240) includes a fixing post (241) and an internal hexagon threaded post (242). The fixing post (241) is fixed on the collar (231). The internal hexagon threaded post (242) is threaded through the interior of the fixing post (241). The internal hexagon threaded post (242) passes through the collar (231) and is in close contact with the extension post (150).

7. A roughening device for construction joints of a cooling tower wall according to claim 6, characterized in that, The fixed post (241) and the collar (231) have threaded holes inside that match the internal hexagonal threaded post (242).

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