Scaffold steel pipe cofferdam

Abstract

The utility model provides a scaffold steel pipe cofferdam which comprises a foundation, a plurality of vertically-arranged longitudinal supporting pipes are fixedly installed on the foundation, a plurality of through holes are formed in the pipe walls of the longitudinal supporting pipes, and transverse supporting pipes and the longitudinal supporting pipes are perpendicularly arranged in a crossed mode through the through holes. Mounting blocks are arranged at the through holes, and the transverse supporting pipes are fixed in the through holes of the longitudinal supporting pipes through connecting assemblies of the mounting blocks; the longitudinal supporting pipes and the transverse supporting pipes form a criss-cross supporting frame body, and a water baffle is installed on the side, facing the water area, of the supporting frame body. The scaffold steel pipe cofferdam has the advantages that the scaffold steel pipe cofferdam is provided with the longitudinal supporting pipe, the transverse supporting pipe, the driving disc, the locking piece, the worm gear, the worm gear and the like, the transverse supporting pipe can be rapidly fixed by rotating the screwing part, the worm gear and the worm are matched to achieve self-locking performance, the bearing capacity is high, stress is stable, and the scaffold steel pipe cofferdam is convenient to use. During installation, the longitudinal supporting pipes and the transverse supporting pipes are easy and fast to install and connect, the labor intensity of workers is low, and the construction efficiency of installation is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of temporary hydraulic structures, and in particular relates to a scaffolding steel pipe cofferdam. Background Technique

[0002] A steel pipe cofferdam is a temporary hydraulic structure constructed by using scaffolding steel pipes as the main supporting structure and combining other auxiliary materials such as bamboo strips and color-striped cloth. It is mainly used in occasions such as bridge construction and water conservancy project construction that require underwater or near-water operations, so as to facilitate construction under dry conditions.

[0003] During the construction of traditional scaffolding, it is usually necessary to insert multiple horizontal pipes between adjacent vertical pipes, which helps to enhance the stability and load-bearing capacity of the entire structure. In order to ensure the firm connection between the horizontal pipe and the vertical pipe, welding is often used for fixation. This connection method can effectively reduce the looseness between components, thereby further enhancing the overall stability of the structure;

[0004] However, the welding operation steps are cumbersome and time-consuming, and it is not convenient to disassemble after use, increasing the labor intensity of workers, which may affect the construction efficiency of installation. Content of the Utility Model

[0005] In view of this, the utility model aims to propose a scaffolding steel pipe cofferdam to solve at least one problem in the background technique.

[0006] To achieve the above object, the technical solution of the utility model is realized as follows:

[0007] A scaffolding steel pipe cofferdam includes a foundation, on which a plurality of vertically arranged longitudinal support pipes are fixedly installed. A plurality of through holes are formed in the pipe wall of the longitudinal support pipes, and the transverse support pipes are vertically and crosswise arranged with the longitudinal support pipes by using the through holes;

[0008] Installation blocks are arranged at the through hole parts, and the transverse support pipes are fixed in the through holes of the longitudinal support pipes by using the connection components of the installation blocks;

[0009] The longitudinal support pipes and the transverse support pipes form a crisscross support frame body, and a water retaining plate is installed on the side of the support frame body facing the water area.

[0010] Further, the connection component includes an installation disc fixedly connected to the end face of the installation block. A plurality of sliding grooves are formed inside the installation disc, and sliding rods are slidably connected inside the sliding grooves. A locking piece is fixedly connected to the end of the sliding rod. A driving disc is rotatably connected to the end face of the installation disc, and a synchronous driving structure is arranged between the driving disc and the plurality of sliding rods.

[0011] Further, the synchronous drive structure includes a sliding pin fixedly connected to the end of the sliding rod away from the locking piece, and arc-shaped chutes are respectively formed in the driving disc corresponding to the sliding pins, and the sliding pins are slidably connected inside the arc-shaped chutes.

[0012] Further, a locking box is fixedly connected to the side end of the mounting disc, a worm is rotatably connected inside the locking box, a worm gear is fixedly connected to the outer periphery of the driving disc, and the worm is in meshing transmission connection with the worm gear;

[0013] Wherein, limiting flanges are respectively arranged on the smooth rod parts at both ends of the threaded part of the worm, and the locking box is arranged between the two limiting flanges, and the two limiting flanges are used to prevent the worm from falling off the locking box.

[0014] Further, an extension column is fixedly connected to the end of the worm, and a tightening part is fixedly sleeved on the outer periphery of the extension column;

[0015] External hexagons facilitating screwing are formed on the outer peripheral surface of the tightening part, and cross grooves facilitating screwing are formed downward on the upper surface of the tightening part;

[0016] Further, anti-slip protrusions are arranged on the end face of the locking piece facing the horizontal support pipe to be clamped, and the anti-slip protrusions are uniformly distributed in an array.

[0017] Further, a fixing plate is fixedly connected to the bottom end of the vertical support pipe, and a plurality of threaded holes are formed in the fixing plate, and the vertical support pipe is fixed to the foundation by using the fixing plate;

[0018] Further, fixing screws are in threaded connection with the threaded holes in the fixing plate, and the lower ends of the fixing screws are inserted into the foundation.

[0019] Further, the water baffle includes a main body framework and a waterproof structure, the main body framework includes bamboo strips, and the waterproof structure includes a tarpaulin, and a waterproof layer is formed by using the bamboo strips and the tarpaulin.

[0020] Further, mounting blocks are arranged on the vertical support pipes arranged at the edge part of the foundation.

[0021] Compared with the prior art, the scaffolding steel pipe cofferdam of the present utility model has the following beneficial effects:

[0022] The scaffolding steel pipe cofferdam of the present utility model is provided with components such as vertical support pipes, horizontal support pipes, driving discs, locking pieces, worm wheels and worm gears, and can quickly fix the horizontal support pipes by rotating the tightening part, and the cooperation between the worm gear and the worm has self-locking property, strong bearing capacity and stable force. When installing, the installation and connection operations of the vertical support pipes and the horizontal support pipes are simple and fast, the labor intensity of workers is low, and the construction efficiency of installation is improved. Description of the Drawings

[0023] The accompanying drawings, which form a part of the present utility model, are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0024] Figure 1 A three-dimensional structural schematic diagram of a scaffolding steel pipe cofferdam provided by the present utility model;

[0025] Figure 2 A three-dimensional structural schematic diagram of a longitudinal support pipe of a scaffolding steel pipe cofferdam provided by the present utility model;

[0026] Figure 3 A scaffolding steel pipe cofferdam provided by the present utility model Figure 1 Partial enlarged view at A in;

[0027] Figure 4 A scaffolding steel pipe cofferdam provided by the present utility model Figure 1 Internal structural schematic diagram at A in;

[0028] Figure 5 A scaffolding steel pipe cofferdam provided by the present utility model Figure 1 Partial cross-sectional view at A in.

[0029] Explanation of reference numerals:

[0030] 1, foundation; 2, water retaining plate; 3, longitudinal support pipe; 4, transverse support pipe; 5, fixing plate; 6, fixing screw; 7, mounting block; 8, mounting plate; 9, locking box; 10, extension column; 11, driving disc; 12, locking piece; 13, anti-slip protrusion; 14, sliding pin; 15, sliding rod; 16, spiral tooth; 17, worm; 18, tightening part; 19, arc-shaped sliding groove; 20, sliding groove. Detailed implementation manners

[0031] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0032] The present utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0033] Please refer to Figures 1 to 5 as shown, the present utility model provides a technical solution: a scaffolding steel pipe cofferdam, including:

[0034] A foundation 1, on which a plurality of vertically arranged longitudinal support pipes 3 are fixedly installed. Through holes are formed in the pipe walls of the longitudinal support pipes 3. The transverse support pipes 4 are vertically and crosswise arranged with the longitudinal support pipes 3 by using the through holes. Mounting blocks 7 are arranged at the through hole parts, and the transverse support pipes 4 are fixed in the through holes of the longitudinal support pipes 3 by using the connecting components of the mounting blocks 7;

[0035] The longitudinal support tubes 3 and the transverse support tubes 4 form a criss-cross support frame, and a water retaining plate 2 is installed on the side of the support frame facing the water area. The water retaining plate 2 can use bamboo strips or other structural components with supporting functions as the main support frame, and use other waterproof materials such as colored strips or tarpaulins as the waterproof layer. The water retaining plate 2 is supported by the longitudinal support tubes 3 to provide water resistance for the cofferdam.

[0036] like Figures 3 to 5 As shown, the connecting assembly includes a mounting plate 8 fixedly connected to the end face of the mounting block 7, a plurality of sliding grooves 20 are provided inside the mounting plate 8, sliding rods 15 are slidably connected inside the sliding grooves 20, a locking plate 12 is fixedly connected to the end of the sliding rod 15, a driving plate 11 is rotatably connected at the end face of the mounting plate 8, a synchronous driving structure is provided between the driving plate 11 and the plurality of sliding rods 15, and the locking plate 12 can be used to fix the cross support tube 4.

[0037] The synchronous drive structure includes a sliding pin 14 fixedly connected to the end of the sliding rod 15 away from the locking plate 12. The driving disk 11 is provided with an arc-shaped sliding groove 19 corresponding to the sliding pin 14. The sliding pin 14 is slidably connected inside the arc-shaped sliding groove 19. By rotating the driving disk 11, multiple locking plates 12 can be driven simultaneously to clamp the cross support tube 4, thereby improving the ease of operation.

[0038] A locking box 9 is fixedly connected to the side end of the mounting plate 8, a worm 17 is rotatably connected inside the locking box 9, a worm gear 16 is fixedly connected to the outer periphery of the driving plate 11, the worm 17 is meshingly connected with the worm gear 16, wherein the worm gear can be replaced by a quarter turbine gear or other components that can cooperate with the worm 17 of the present scheme, the cooperation between the worm gear 16 and the worm 17 has a certain self-locking property, and will not rotate in actual use scenarios, and has a strong load-bearing capacity and stable force, which can improve the connection stability of the cross support tube 4.

[0039] The smooth rod parts at both ends of the threaded part of the worm are respectively provided with limiting flanges, and the locking box is arranged between the two limiting flanges, and the two limiting flanges are used to prevent the worm from falling off from the locking box 9 due to twisting.

[0040] The end of the worm 17 is fixedly connected to an extension column 10, and a tightening portion 18 is fixedly sleeved on the outer periphery of the extension column 10;

[0041] The outer circumferential surface of the tightening part 18 is provided with an external hexagon for easy screwing, and the upper surface of the tightening part 18 is provided with a cross groove for easy screwing. The arrangement of the external hexagon and the cross groove facilitates workers to use existing electric screwdrivers to install the device during installation at the construction site, thereby improving installation efficiency;

[0042] The end face of the locking piece 12 facing the transverse support pipe 4 to be clamped is provided with anti-slip protrusions 13. The anti-slip protrusions 13 are evenly distributed in an array. The anti-slip protrusions 13 can increase the contact friction force with the transverse support pipe 4, making the fixation of the locking piece 12 on the transverse support pipe 4 more stable. The anti-slip protrusions can be made of anti-slip materials such as hard rubber.

[0043] A fixing plate 5 is fixedly connected to the bottom end of the longitudinal support pipe 3. A plurality of threaded holes are formed in the fixing plate 5, and the fixing plate 5 functions to fix the longitudinal support pipe 3.

[0044] A fixing screw 6 is threadedly connected to the internal threaded hole of the fixing plate 5. The lower end of the fixing screw 6 is inserted into the foundation 1. By inserting the fixing screw 6 deep into the foundation 1, the fixing stability of the longitudinal support pipe 3 is improved.

[0045] At the same time, in order to improve the construction speed of the steel pipe cofferdam at the construction site, Figure 1 The figure shows the installation schematic diagram of the device. During the actual use process, the number of installation blocks 7 can be configured according to the actual situation on site, so as to simplify the installation / dismantling speed of the steel pipe cofferdam. Usually, only the installation method as shown in Figure 1 is required, that is, only by appropriately installing the installation blocks 7 at the staggered parts of the longitudinal support pipe 3 and the transverse support pipe 4 at the edge can the stability of the device meet the use requirements. Installation blocks can also be placed at more staggered parts of the longitudinal support pipe 3 and the transverse support pipe 4 according to actual needs;

[0046] Working principle: When connecting and installing the steel pipes of the scaffolding, insert the transverse support pipe 4 into the through hole of the longitudinal support pipe 3. Configure an appropriate number of installation blocks 7 according to the actual usage requirements, and then use tools such as an electric screwdriver to rotate the tightening part 18. The groove on the outer periphery of the tightening part 18 can increase the contact friction force on the outer peripheral surface of the tightening part 18, making the rotation of the tightening part 18 more stable. When the tightening part 18 rotates, it will drive the worm 17 to rotate. The rotation of the worm 17 in cooperation with the worm gear 16 can drive the driving disk 11 to rotate. When the driving disk 11 rotates, it simultaneously presses multiple sliding pins 14 through multiple arc-shaped chutes 19. When the sliding pins 14 move, they will drive the sliding rod 15 to move. However, the sliding rod 15 is also restricted by the movement of the sliding groove 20, so that the sliding rod 15 can only move linearly along the sliding groove 20. When the sliding rod 15 moves, it can fix the transverse support pipe 4 through the locking piece 12. Anti-slip protrusions 13 are provided at one end of the locking pieces 12 close to each other, which can increase the contact friction force with the transverse support pipe 4, making the fixation of the locking piece 12 on the transverse support pipe 4 more stable. The cooperation between the worm gear 16 and the worm 17 has self-locking property. During actual use, the worm gear 16 and the worm 17 will not loosen naturally due to the water wave pressure on the water baffle, and it has strong load-bearing capacity and stable force. The fixation of the transverse support pipe 4 can be quickly achieved by rotating the tightening part 18. The operation is simple and fast, and the labor intensity of workers is relatively low, improving the construction efficiency of installation.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention.

[0048] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A scaffolding steel pipe cofferdam, characterized in that, Including: A foundation (1), on which a plurality of vertically arranged longitudinal support pipes (3) are fixedly installed. A plurality of through holes are formed in the pipe wall of the longitudinal support pipe (3), and a transverse support pipe (4) is vertically and cross - arranged with the longitudinal support pipe (3) by using the through holes; An installation block (7) is arranged at the position of the through hole, and the transverse support pipe (4) is fixed in the through hole of the longitudinal support pipe (3) by using a connecting component of the installation block (7); The longitudinal support pipes (3) and the transverse support pipes (4) form a criss - cross support frame body, and a water - retaining plate (2) is installed on one side of the support frame body facing the water area.

2. A scaffolding steel pipe cofferdam according to claim 1, characterized in that: The connecting component includes an installation disc (8) fixedly connected to the end face of the installation block (7). A plurality of sliding grooves (20) are formed inside the installation disc (8). Slide rods (15) are slidably connected inside the sliding grooves (20). A locking piece (12) is fixedly connected to the end of the slide rod (15). A driving disc (11) is rotatably connected to the end face of the installation disc (8), and a synchronous driving structure is arranged between the driving disc (11) and the plurality of slide rods (15).

3. A scaffolding steel pipe cofferdam according to claim 2, characterized in that: The synchronous driving structure includes a sliding pin (14) fixedly connected to the end of the slide rod (15) far from the locking piece (12). Arc - shaped sliding grooves (19) are formed in the driving disc (11) corresponding to the sliding pins (14), and the sliding pins (14) are slidably connected inside the arc - shaped sliding grooves (19).

4. A scaffolding steel pipe cofferdam according to claim 3, characterized in that: A locking box (9) is fixedly connected to the side end of the installation disc (8). A worm (17) is rotatably connected inside the locking box (9). A worm gear (16) is fixedly connected to the outer periphery of the driving disc (11), and the worm (17) is in meshing transmission connection with the worm gear (16); Wherein, limiting flanges are respectively arranged on the smooth rod parts at both ends of the threaded part of the worm. The locking box is arranged between the two limiting flanges, and the two limiting flanges are used to prevent the worm from falling off the locking box (9) due to screwing.

5. A scaffolding steel pipe cofferdam according to claim 4, characterized in that: An extension column (10) is fixedly connected to the end of the worm (17), and a tightening part (18) is fixedly sleeved on the outer periphery of the extension column (10); The outer peripheral surface of the tightening part (18) is provided with an external hexagon for easy screwing, and a cross - shaped groove for easy screwing is formed downward on the upper surface of the tightening part (18).

6. The steel pipe cofferdam for scaffolding according to claim 2, characterized in that: The end face of the locking piece (12) facing the transverse support pipe (4) to be clamped is provided with anti - slip protrusions (13), and the plurality of anti - slip protrusions (13) are uniformly arranged in an array.

7. A scaffolding steel pipe cofferdam according to claim 1, characterized in that: The bottom end of the longitudinal support pipe (3) is fixedly connected with a fixing plate (5), and a plurality of threaded holes are formed in the fixing plate (5). The longitudinal support pipe (3) is fixed on the foundation (1) by using the fixing plate (5).

8. A scaffolding steel pipe cofferdam according to claim 7, characterized in that: A fixing screw (6) is in threaded connection with the internal threaded hole of the fixing plate (5), and the lower end of the fixing screw (6) is inserted into the foundation (1).

9. A scaffolding steel pipe cofferdam according to claim 1, characterized in that: The water - retaining plate (2) includes a main body framework and a waterproof structure. The main body framework includes bamboo strips, and the waterproof structure includes a tarpaulin. A waterproof layer is formed by using the bamboo strips and the tarpaulin.

10. A scaffolding steel pipe cofferdam according to claim 1, characterized in that: Installation blocks (7) are arranged on the longitudinal support pipes (3) at the edge part of the foundation (1).

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