Water stop structure for hydraulic dam bottom shaft

Abstract

The utility model relates to a water stop structure for a hydraulic dam bottom shaft. The water stop structure comprises a bottom water stop structure arranged on one side of the hydraulic dam bottom shaft and a side water stop structure arranged at the connecting end of the hydraulic dam bottom shaft. The end face of the connecting end of the hydraulic dam bottom shaft is inwards provided with a concave part, the side water stop structure comprises second water stop sealing rubber, part of the second water stop sealing rubber is fixed in the concave part, and part of the second water stop sealing rubber is exposed so that the second water stop sealing rubber on the adjacent hydraulic dam bottom shaft can be attached. The first water-stop sealing rubber is tightly attached to the outer wall of the hydraulic dam bottom shaft, a good water-stop effect can be achieved at the bottom of the hydraulic dam bottom shaft, and the second water-stop sealing rubber is tightly attached to the inner wall face of the concave portion of the hydraulic dam bottom shaft and the end face of the connecting end of the hydraulic dam bottom shaft. The two pieces of second water stop sealing rubber at the connecting ends of the two adjacent hydraulic dam bottom shafts can be tightly attached, so that the side water stop effect between the two adjacent hydraulic dam bottom shafts is achieved, the structure is simple, use is convenient, and the water stop effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic dam water stopping, and in particular relates to a water stopping structure for a hydraulic dam bottom shaft. Background Art

[0002] The contact ends of the two adjacent hydraulic dam bottom shafts and the outer wall (bottom) of the hydraulic dam bottom shaft should be designed with a water-stop structure. The water-stop structure can ensure that when the gate is erected or laid down, the bottom of the hydraulic dam bottom shaft and the contact ends of the two adjacent hydraulic dam bottom shafts can maintain a good sealing and water-stopping state, thereby preventing water leakage and ensuring the stability and safety of the water conservancy project.

[0003] The hydraulic dam bottom shaft is generally a circular tube, and its water-stopping structure is generally a rubber pad arranged on the outer periphery of the outer wall of the hydraulic dam bottom shaft (circular tube) and at the contact ends of two adjacent hydraulic dam bottom shafts. The rubber pad is used to achieve sealing and water-stopping effects on a single hydraulic dam bottom shaft and between two adjacent hydraulic dam bottom shafts. However, the water-stopping structure design in the prior art is not perfect. For example, the rubber pad arranged at the connecting end of the hydraulic dam bottom shaft (that is, the contact end of two adjacent hydraulic dam bottom shafts) has poor connection stability with the connecting end of the hydraulic dam bottom shaft and is prone to loosening and dislocation, which leads to poor sealing and water-stopping effects. Utility Model Content

[0004] The purpose of the present utility model is to provide a water-stopping structure for the hydraulic dam bottom shaft in order to solve the above-mentioned problems, aiming to solve the technical problem that the water-stopping structure for the hydraulic dam bottom shaft in the prior art is not well designed, such as the rubber pad provided at the connecting end of the hydraulic dam bottom shaft has poor connection stability with the connecting end of the hydraulic dam bottom shaft and is prone to loosening and dislocation, thereby leading to poor sealing and water-stopping effect.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A water-stop structure for a hydraulic dam bottom shaft, comprising a bottom water-stop structure provided on one side of the hydraulic dam bottom shaft and a side water-stop structure provided at the connecting end of the hydraulic dam bottom shaft;

[0007] A recessed portion is formed inwardly on the end surface of the connecting end of the hydraulic dam bottom shaft, and the side water-stopping structure includes a second water-stopping sealing rubber. Part of the structure of the second water-stopping sealing rubber is fixed in the recessed portion, and part of the structure is exposed to allow the second water-stopping sealing rubbers on adjacent hydraulic dam bottom shafts to fit together.

[0008] As a further optimization scheme of the present invention, the bottom water-stopping structure includes a mounting base arranged on one side of the hydraulic dam bottom shaft, a first water-stopping sealing rubber arranged above the mounting base, and a pressure plate arranged above the first water-stopping sealing rubber and used to press the first water-stopping sealing rubber against the outer wall of the hydraulic dam bottom shaft.

[0009] As a further optimization scheme of the present invention, the first water-stop sealing rubber and the pressure plate both include a straight section and a curved section connected to each other. The straight section of the pressure plate is arranged corresponding to the straight section of the first water-stop sealing rubber and is used to press the straight section of the first water-stop sealing rubber to fit it to the mounting base. The curved section of the pressure plate is arranged corresponding to the curved section of the first water-stop sealing rubber and is used to press the curved section of the first water-stop sealing rubber to fit it to the outer wall of the bottom shaft of the hydraulic dam.

[0010] As a further optimization solution of the present invention, the side water-stopping structure further includes a mounting plate arranged in the recessed portion, and a plurality of fixing members for connecting the mounting plate and the second water-stopping sealing rubber.

[0011] As a further optimization solution of the present invention, a groove is provided on the second water-stop sealing rubber, and a mounting hole for mounting a fixing part is provided inside the groove.

[0012] The beneficial effects of the present invention are:

[0013] 1) The utility model achieves a good water-stopping effect at the bottom of the hydraulic dam bottom shaft by tightly fitting the first water-stop sealing rubber to the outer wall of the hydraulic dam bottom shaft. The second water-stop sealing rubber tightly fits the inner wall surface of the recessed portion of the hydraulic dam bottom shaft and the end surface of the connecting end of the hydraulic dam bottom shaft. When in use, the two second water-stop sealing rubbers at the connecting ends of two adjacent hydraulic dam bottom shafts can fit tightly together to achieve a side water-stopping effect between the two adjacent hydraulic dam bottom shafts. The utility model has a simple structure, is easy to use, and has a good water-stopping effect.

[0014] 2) The utility model uses a pressure plate to press the first water-stop sealing rubber toward the outer wall of the hydraulic dam bottom shaft, so that the first water-stop sealing rubber and the outer wall of the hydraulic dam bottom shaft are closely fitted to achieve a good water-stop effect. Under the pressing action of the pressure plate, the first water-stop sealing rubber can be closely fitted to the outer wall of the hydraulic dam bottom shaft, which can greatly reduce the impact of particles such as silt and pebbles on the sealing effect;

[0015] 3) The utility model uses a second water-stop sealing rubber with a step-type sealing end face. Its transverse sealing end face can contact the inner wall surface of the recessed portion at the connecting end of the hydraulic dam bottom shaft, and its vertical sealing end face can contact the end face of the connecting end of the hydraulic dam bottom shaft. Part of the structure of the second water-stop sealing rubber is fixed in the recessed portion and penetrates deep into the hydraulic dam bottom shaft (steel pipe). After the fixing mounting plate and the second water-stop sealing rubber are connected by the fixing parts, the connection reliability and stability are high, and it is not easy to fall off, be damaged, loosen or dislocated, and the water-stop sealing effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the overall structure of the bottom water-stop structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the overall structure of the side water-stop structure of the present utility model.

[0018] Figure 3 This utility model Figure 2 Schematic diagram of some structures in (A. Front cross-sectional view of the mounting plate; B. Side view of the mounting plate).

[0019] Figure 4 This utility model Figure 2 Schematic diagram of some structures in (A. front sectional view of the second water-stop sealing rubber; B. side view of the second water-stop sealing rubber).

[0020] In the figure: 1. Mounting base; 2. First water-stop sealing rubber; 3. Pressing plate; 4. Mounting plate; 5. Second water-stop sealing rubber; 51. Trough body; 52. Mounting hole; 6. Fixing piece. DETAILED DESCRIPTION

[0021] The present application is described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0022] like Figure 1-4 As shown, a water-stop structure for a hydraulic dam bottom shaft comprises a bottom water-stop structure provided on one side of the hydraulic dam bottom shaft and a side water-stop structure provided at the connecting end of the hydraulic dam bottom shaft;

[0023] A recessed portion is formed inwardly on the end surface of the connecting end of the hydraulic dam bottom shaft, and the side water-stopping structure includes a second water-stopping sealing rubber 5. Part of the structure of the second water-stopping sealing rubber 5 is fixed in the recessed portion, and part of the structure is exposed to allow the second water-stopping sealing rubbers 5 on adjacent hydraulic dam bottom shafts to fit together.

[0024] It should be noted that the connecting end of the hydraulic dam bottom shafts in the present application refers to the end where two adjacent hydraulic dam bottom shafts contact each other.

[0025] Preferably, the bottom water-stopping structure includes a mounting base 1 provided on one side of the hydraulic dam bottom shaft, a first water-stopping sealing rubber 2 provided above the mounting base 1, and a pressure plate 3 provided above the first water-stopping sealing rubber 2 and used to press the first water-stopping sealing rubber 2 against the outer wall of the hydraulic dam bottom shaft.

[0026] Furthermore, the first water-stop sealing rubber 2 and the pressure plate 3 both include a straight section and an arcuate section that are interconnected. The straight section of the pressure plate 3 is arranged corresponding to the straight section of the first water-stop sealing rubber 2 and is used to press the straight section of the first water-stop sealing rubber 2 to fit against the mounting base 1. The arcuate section of the pressure plate 3 is arranged corresponding to the arcuate section of the first water-stop sealing rubber 2 and is used to press the arcuate section of the first water-stop sealing rubber 2 to fit against the outer wall of the bottom shaft of the hydraulic dam. The straight section of the first water-stop sealing rubber 2 fits against the mounting base 1, and a stable support is formed for the first water-stop sealing rubber 2 through the mounting base 1. The arcuate section of the first water-stop sealing rubber 2 fits tightly against the outer wall of the bottom shaft of the hydraulic dam, and is pressed by the pressure plate 3 to improve the sealing and water-stopping effect.

[0027] like Figure 1 As shown, the pressure plate 3 presses the first water-stop sealing rubber 2 toward the outer wall of the hydraulic dam bottom shaft, so that the first water-stop sealing rubber 2 fits tightly against the outer wall of the hydraulic dam bottom shaft to achieve a better water-stopping effect. Under the pressing action of the pressure plate 3, the first water-stop sealing rubber 2 can fit tightly against the outer wall of the hydraulic dam bottom shaft, which can greatly reduce the influence of particles such as silt and pebbles on the sealing effect.

[0028] Preferably, the side water-stop structure further comprises a mounting plate 4 provided in the recessed portion, and a plurality of fixing members 6 for connecting the mounting plate 4 and the second water-stop sealing rubber 5;

[0029] Furthermore, a groove 51 is provided on the second water-stop sealing rubber 5, and a mounting hole 52 for installing a fixing part 6 is provided inside the groove 51. The fixing part 6 is fixedly installed inside the mounting hole 52. When two adjacent hydraulic dam bottom shafts contact each other, the fixing parts 6 inside the mounting holes 52 on the two second water-stop sealing rubbers 5 will not contact each other and generate friction, making it difficult for the fixing part 6 to fall off.

[0030] It should be noted that, in this embodiment, the fixing member 6 is a fixing screw. This application uses a hexagon socket screw, but is not limited to a hexagon socket screw.

[0031] like Figure 2As shown, the sealing end face of the second water-stop sealing rubber 5 is a step-type structure, and its horizontal sealing end face can contact the inner wall surface of the recessed portion at the connecting end of the hydraulic dam bottom shaft, and its vertical sealing end face can contact the end face of the connecting end of the hydraulic dam bottom shaft. Part of the structure of the second water-stop sealing rubber 5 is fixed in the recessed portion, penetrating into the interior of the hydraulic dam bottom shaft steel pipe, and then the mounting plate 4 and the second water-stop sealing rubber 5 are connected and fixed together by the fixing part 6. First, the connection reliability and stability will be better, and it will not be easy to fall off and be damaged; second, the water-stop sealing effect of the hydraulic dam bottom shaft is good. During use, when the connecting ends of the two hydraulic dam bottom shafts contact each other, the two second water-stop sealing rubbers 5 at the connecting ends of the two hydraulic dam bottom shafts fit tightly together, thereby achieving the function of sealing and water-stopping.

[0032] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. A water-stop structure for a hydraulic dam bottom shaft, characterized by: It includes a bottom water-stop structure provided on one side of the hydraulic dam bottom axis and a side water-stop structure provided at the connecting end of the hydraulic dam bottom axis; The end surface of the connecting end of the hydraulic dam bottom shaft is formed inwardly with a recessed portion, and the side water-stopping structure includes a second water-stopping sealing rubber (5), part of the structure of the second water-stopping sealing rubber (5) is fixed in the recessed portion, and part of the structure is exposed to allow the second water-stopping sealing rubbers (5) on adjacent hydraulic dam bottom shafts to fit together.

2. A water-stop structure for a hydraulic dam bottom shaft according to claim 1, characterized in that: The bottom water-stopping structure comprises a mounting base (1) provided on one side of the hydraulic dam bottom shaft, a first water-stopping sealing rubber (2) provided above the mounting base (1), and a pressure plate (3) provided above the first water-stopping sealing rubber (2) and used for pressing the first water-stopping sealing rubber (2) against the outer wall of the hydraulic dam bottom shaft.

3. The water-stop structure for the hydraulic dam bottom shaft according to claim 2, characterized in that: The first water-stop sealing rubber (2) and the pressure plate (3) both comprise a straight section and an arcuate section connected to each other; the straight section of the pressure plate (3) is arranged correspondingly to the straight section of the first water-stop sealing rubber (2) and is used to press the straight section of the first water-stop sealing rubber (2) against the mounting base (1); the arcuate section of the pressure plate (3) is arranged correspondingly to the arcuate section of the first water-stop sealing rubber (2) and is used to press the arcuate section of the first water-stop sealing rubber (2) against the outer wall of the bottom shaft of the hydraulic dam.

4. The water-stop structure for the bottom shaft of a hydraulic dam according to claim 1, characterized in that: The side water-stopping structure further comprises a mounting plate (4) arranged in the recessed portion, and a plurality of fixing members (6) for connecting the mounting plate (4) and the second water-stopping sealing rubber (5).

5. The water-stop structure for the hydraulic dam bottom shaft according to claim 4, characterized in that: A groove body (51) is provided on the second water-stop sealing rubber (5), and a mounting hole (52) for mounting a fixing member (6) is provided inside the groove body (51).

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