Concrete formwork for water conservancy and hydropower dam construction

Abstract

The utility model discloses a concrete formwork for water conservancy and hydropower dam construction, and relates to the technical field of water conservancy and hydropower dam construction. The concrete formwork comprises a concrete formwork body, the rear side of the concrete formwork body is fixedly connected with a fixing frame, the fixing frame is rotationally connected with a T-shaped supporting arm through a connecting shaft, the lower end of the T-shaped supporting arm is slidably connected with a movable supporting arm, and the interior of the T-shaped supporting arm is rotationally connected with a lead screw through a bearing. The screw rod is rotated to drive the movable supporting arm to move downwards, the movable supporting arm is accurately and flexibly extended according to the actual supporting requirement, operation is convenient and fast, splicing of adjacent concrete formwork bodies can be achieved through matching of the connecting grooves and the connecting protrusions, the screw rod is rotated to drive the sliding base to slide along the guide frame, and the concrete formwork bodies can be conveniently and rapidly spliced. The T-shaped supporting arm can be driven to rotate around the connecting shaft at the upper end of the T-shaped supporting arm through cooperation of the upper support, the connecting rod and the lower support, and the angle between the concrete formwork body and the T-shaped supporting arm is flexibly adjusted.

Description

Technical Field

[0001] This utility model belongs to the field of water conservancy and hydropower dam construction technology, and in particular relates to a concrete formwork for water conservancy and hydropower dam construction. Background Technology

[0002] Water is a fundamental element for human survival, and electricity is a major energy source for social development. Hydraulic engineering is an engineering science that, based on the study of the natural properties of water, regulates and utilizes hydropower resources through engineering or non-engineering measures. Among these, hydropower dams are crucial facilities in hydraulic engineering construction. Concrete formwork is essential not only for intercepting floods but also for generating electricity. A search revealed that patent application number 202121238369.8 discloses a concrete formwork for hydraulic dam construction, comprising a vertically arranged frame with an opening on its right side and a vertically arranged base plate inside.

[0003] However, in actual use, the applicant found that when adjusting the position of the telescopic rod, it was done by sliding the telescopic rod along the telescopic cylinder to a certain distance and inserting the positioning rod into the positioning hole on the telescopic rod to fix the position of the telescopic rod after sliding adjustment. This method makes it impossible to adjust the telescopic rod to the required position with high precision. In view of this, we propose a concrete formwork for the construction of water conservancy and hydropower dams. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to a concrete formwork for the construction of a water conservancy and hydropower dam, comprising a concrete formwork plate, a fixed frame fixedly connected to the rear side of the concrete formwork plate, a T-shaped support arm rotatably connected to the fixed frame via a connecting shaft, a movable support arm slidably connected to the lower end of the T-shaped support arm, a lead screw rotatably connected to the interior of the T-shaped support arm via a bearing, the lower end of the lead screw being threaded into the upper end of the movable support arm, the upper end of the lead screw extending to the outside of the T-shaped support arm and fixedly provided with an adjusting handle, a guide frame fixedly connected to the rear side of the concrete formwork plate below the fixed frame, a slide block slidably connected to the interior of the guide frame, the slide block being movably connected to the T-shaped support arm via a connecting rod, a screw rod rotatably connected to the interior of the guide frame via a bearing, the screw rod threaded through the slide block, and the lower end of the screw rod extending to the outside of the guide frame and fixedly provided with a brake handle, a connecting groove provided on one side of the concrete formwork plate, and a connecting protrusion provided on the other side of the concrete formwork plate.

[0006] Preferably, the rear side of the fixing frame is symmetrically fixed with connecting seats, and the top of the T-shaped support arm is symmetrically provided with connecting support parts.

[0007] Preferably, the two connecting support portions are rotatably connected to the two connecting seats respectively via connecting shafts.

[0008] Preferably, a lower support is fixedly provided on the rear side of the slide, and an upper support is fixedly provided on the side of the T-shaped support arm near the slide.

[0009] Preferably, the upper end of the connecting rod is rotatably connected to the upper support via a connecting shaft, and the lower end of the connecting rod is rotatably connected to the lower support via a connecting shaft.

[0010] Preferably, the connecting groove is connected to the connecting protrusion on the adjacent concrete formwork plate.

[0011] This utility model has the following beneficial effects:

[0012] This utility model discloses a concrete formwork for the construction of hydropower dams. By rotating the screw, the movable support arm can be moved downward along the T-shaped support arm, allowing for precise and flexible extension of the movable support arm according to actual support needs. The operation is convenient. Through the cooperation of the connecting groove and the connecting protrusion, the splicing between adjacent concrete formwork panels can be realized. By rotating the screw, the slide block can be moved along the guide frame. Through the cooperation of the upper support, connecting rod and lower support, the T-shaped support arm can be rotated around the connecting shaft at its upper end, allowing for flexible adjustment of the angle between the concrete formwork panel and the T-shaped support arm. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a top view schematic diagram of a concrete formwork for the construction of a water conservancy and hydropower dam according to the present invention;

[0015] Figure 2 This is a bottom view structural diagram of a concrete formwork for the construction of a water conservancy and hydropower dam according to the present invention;

[0016] Figure 3 This utility model relates to a concrete formwork for the construction of water conservancy and hydropower dams. Figure 1 Enlarged view of the structure at point A in the middle.

[0017] The attached diagram lists the components represented by each number as follows:

[0018] 1. Concrete formwork slab; 11. Connecting groove; 12. Connecting protrusion; 2. Fixing frame; 21. Connecting seat; 3. T-shaped support arm; 31. Connecting support part; 32. Upper support; 4. Screw rod; 41. Adjusting handle; 5. Movable support arm; 6. Connecting rod; 7. Guide frame; 8. Slide seat; 81. Lower support; 9. Screw rod; 91. Brake handle. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3 As shown, this utility model provides a technical solution:

[0021] A concrete formwork for the construction of a hydropower dam includes a concrete formwork plate 1. A fixed frame 2 is fixedly connected to the rear side of the concrete formwork plate 1. A T-shaped support arm 3 is rotatably connected to the fixed frame 2 via a connecting shaft. Connecting seats 21 are symmetrically fixedly arranged on the rear side of the fixed frame 2. Connecting support parts 31 are symmetrically arranged on the top of the T-shaped support arm 3. The two connecting support parts 31 are rotatably connected to the two connecting seats 21 via connecting shafts. A movable support arm 5 is slidably connected to the lower end of the T-shaped support arm 3. A screw rod 4 is rotatably connected to the inside of the T-shaped support arm 3 via a bearing. The lower end of the screw rod 4 is threaded into the upper end of the movable support arm 5. By rotating the screw rod 4, the movable support arm 5 can be moved downward along the T-shaped support arm 3, allowing the movable support arm 5 to be precisely and flexibly extended according to the actual support requirements. The operation is convenient. The upper end of the screw rod 4 extends to the outside of the T-shaped support arm 3 and is fixedly provided with an adjusting handle 41. An opening is provided on one side of the concrete formwork plate 1. A connecting groove 11 is provided on the other side of the concrete formwork slab 1, and a connecting protrusion 12 is provided on the other side. The connecting groove 11 and the connecting protrusion 12 on the adjacent concrete formwork slab 1 are connected. Through the cooperation of the connecting groove 11 and the connecting protrusion 12, the splicing between adjacent concrete formwork slabs 1 can be realized. When constructing a water conservancy and hydropower dam, the concrete formwork slab 1 can be erected at the required position, and the position of the movable support arm 5 can be adjusted according to the actual support requirements of the concrete formwork slab 1. When adjusting the movable support arm 5, the adjusting handle 41 can be manually turned clockwise to drive the screw rod 4 to rotate. The rotation of the screw rod 4 can drive the movable support arm 5 to extend out from the inside of the T-shaped support arm 3, so that the lower end of the movable support arm 5 is stably inserted into the ground to support the concrete formwork slab 1. And through the cooperation of the connecting groove 11 and the connecting protrusion 12, adjacent concrete formwork slabs 1 with the same inclination angle can be spliced.

[0022] A guide frame 7 is fixedly connected to the rear side of the concrete formwork slab 1 below the fixed frame 2. A slide block 8 is slidably connected inside the guide frame 7. Guide rails are symmetrically arranged on both sides inside the guide frame 7. Slide blocks 8 have symmetrically opened grooves on both sides that mate with the guide rails. The slide block 8 is movably connected to the T-shaped support arm 3 via a connecting rod 6. The upper end of the connecting rod 6 is rotatably connected to the upper support 32 via a connecting shaft, and the lower end of the connecting rod 6 is rotatably connected to the lower support 81 via a connecting shaft. A screw 9 is rotatably connected inside the guide frame 7 via a bearing. The screw 9 is threaded through the slide block 8. By rotating the screw 9, the slide block 8 is driven to slide along the guide frame 7. This is achieved through the cooperation of the upper support 32, the connecting rod 6, and the lower support 81. The T-shaped support arm 3 is driven to rotate around its upper connecting shaft, allowing for flexible adjustment of the angle between the concrete formwork slab 1 and the T-shaped support arm 3. The lower end of the screw 9 extends to the outside of the guide frame 7 and is fixedly equipped with a brake handle 91. When adjusting the angle between the concrete formwork slab 1 and the T-shaped support arm 3, the screw 9 can be rotated by manually moving the brake handle 91. The rotation of the screw 9 can drive the slide block 8 to move along the guide frame 7. The movement of the slide block 8 can, through the cooperation of the upper support 32, the connecting rod 6 and the lower support 81, drive the T-shaped support arm 3 to rotate around its upper connecting shaft, thereby achieving rapid adjustment of the angle between the concrete formwork slab 1 and the T-shaped support arm 3.

[0023] Working principle: During the construction of a water conservancy and hydropower dam, the concrete formwork slab 1 can be erected at the required position. The position of the movable support arm 5 and the angle between the concrete formwork slab 1 and the T-shaped support arm 3 can be adjusted according to the actual support requirements of the concrete formwork slab 1. When adjusting the angle between the concrete formwork slab 1 and the T-shaped support arm 3, the screw 9 can be rotated by manually moving the brake handle 91. The rotation of the screw 9 causes the slide 8 to move along the guide frame 7. The movement of the slide 8 is achieved through the cooperation of the upper support 32, the connecting rod 6, and the lower support 81. The T-shaped support arm 3 rotates around its upper connecting shaft, enabling rapid adjustment of the angle between the concrete formwork slab 1 and the T-shaped support arm 3. When adjusting the movable support arm 5, the screw rod 4 can be rotated by manually turning the adjusting handle 41 clockwise. The rotation of the screw rod 4 can cause the movable support arm 5 to extend out from the inside of the T-shaped support arm 3, so that the lower end of the movable support arm 5 is stably inserted into the ground to support the concrete formwork slab 1. It can also be used to splice adjacent concrete formwork slabs 1 with the same inclination angle through the cooperation of the connecting groove 11 and the connecting protrusion 12.

[0024] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications to the technical solutions described in the foregoing embodiments or equivalent substitutions of some of the technical features shall fall within the protection scope of the present utility model.

Claims

1. A concrete formwork for the construction of a water conservancy and hydropower dam, comprising a concrete formwork slab (1), characterized in that: A fixing frame (2) is fixedly connected to the rear side of the concrete formwork plate (1). A T-shaped support arm (3) is rotatably connected to the fixing frame (2) via a connecting shaft. A movable support arm (5) is slidably connected to the lower end of the T-shaped support arm (3). A screw rod (4) is rotatably connected to the inside of the T-shaped support arm (3) via a bearing. The lower end of the screw rod (4) is threaded into the upper end of the movable support arm (5). The upper end of the screw rod (4) extends to the outside of the T-shaped support arm (3) and is fixedly provided with an adjusting handle (41). The rear of the concrete formwork plate (1) below the fixing frame (2) is... A guide frame (7) is fixedly connected to the side. A slide block (8) is slidably connected inside the guide frame (7). The slide block (8) is movably connected to the T-shaped support arm (3) through a connecting rod (6). A screw (9) is rotatably connected inside the guide frame (7) through a bearing. The screw (9) is threaded through the slide block (8), and the lower end of the screw (9) extends to the outside of the guide frame (7) and is fixedly provided with a brake handle (91). A connecting groove (11) is provided on one side of the concrete template plate (1), and a connecting protrusion (12) is provided on the other side of the concrete template plate (1).

2. A concrete formwork for the construction of a water conservancy and hydropower dam according to claim 1, characterized in that, The rear side of the fixed frame (2) is symmetrically fixed with a connecting seat (21), and the top of the T-shaped support arm (3) is symmetrically provided with a connecting support part (31).

3. A concrete formwork for the construction of a water conservancy and hydropower dam according to claim 2, characterized in that, The two connecting support parts (31) are rotatably connected to the two connecting seats (21) respectively via connecting shafts.

4. A concrete formwork for the construction of a water conservancy and hydropower dam according to claim 1, characterized in that, A lower support (81) is fixedly provided on the rear side of the slide (8), and an upper support (32) is fixedly provided on the side of the T-shaped support arm (3) near the slide (8).

5. A concrete formwork for the construction of a water conservancy and hydropower dam according to claim 4, characterized in that, The upper end of the connecting rod (6) is rotatably connected to the upper support (32) via a connecting shaft, and the lower end of the connecting rod (6) is rotatably connected to the lower support (81) via a connecting shaft.

6. A concrete formwork for the construction of a water conservancy and hydropower dam according to claim 1, characterized in that, The connecting groove (11) is connected to the connecting protrusion (12) on the adjacent concrete formwork plate (1).

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