Hydraulic folding dam with mechanical self-locking for forked type rod

Abstract

The invention discloses a hydraulic folding dam with mechanical self-locking for a forked type rod. The dam comprises a dam base and a door page which is movably connected to the dam base. Two supporting devices are arranged between the dam base and the door page, each of the supporting devices comprises a lower connecting rod connected to the dam base and an upper connecting rod connected to the door page, and the upper connecting rod is movably connected to the lower connecting rod. The dam disclosed by the invention has the advantages that the dam is more compact in structure; compared with a supporting hydraulic cylinder which directly supports the door page, the stroke of the hydraulic cylinder is long; as a mechanical self-locking structure is arranged, two locking hydraulic cylinders are cancelled; all the connecting rods are two-force beams, so that the dam is more reliable in structure and the connecting rods are only subjected to a pressure or tension. Compared with the hydraulic dam in the drawing, the lower connecting rod is subjected to a great bending stress; the supporting devices are double connecting rod structures which are more firm, and in the moving process, inference with the supporting rods of the hydraulic cylinder is avoided; the hydraulic cylinder is directly supported at an upper and lower connecting rod motion pair, so that the supporting force is greatly lowered, the dimension of the hydraulic cylinder is reduced, and the reliability is improved.

Description

technical field

[0001] The invention relates to the construction field of water retaining dams, in particular to a hydraulic folding dam with fork-shaped rods and mechanical self-locking. Background technique

[0002] The hydraulic folding dam is a kind of dam that is powered by hydraulic cylinders to lift and fold. Its core components mainly include: support system (generally support rod), lifting system (hydraulic cylinder). There are many types of hydraulic dams on the market at present, and the lifting system is generally two hydraulic cylinders. The support system is generally a link mechanism with a locking cylinder (locked when the hydraulic dam rises to the final position) to ensure that the hydraulic dam can be stably at the end position when the hydraulic cylinder has no pressure oil. The structures of these traditional hydraulic folding dams are relatively complicated, and the support rods are not two-force rods, which are easily subjected to bending stress. C...

Examples

Embodiment Construction

[0020] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0021] Such as figure 1 As shown, a hydraulic folding dam with a fork-shaped rod and mechanical self-locking includes a dam foundation 1 and a door leaf 2 that is movably connected with the dam foundation 1. There are two sets of supporting devices between the dam foundation 1 and the door leaf 2, and each group includes The lower connecting rod 3 connected with the dam foundation 1, and the upper connecting rod 4 connected with the door leaf 2, the upper connecting rod 4 and the lower connecting rod 3 are movably connected. A hydraulic cylinder 5 fixedly connected to the dam foundation 1 is provided below the supporting device, a rotating shaft 7 is crossed at the top of the piston rod 6 of the hydraulic cylinder 5, and the lower end of the upp...

technical field

[0001] The invention relates to the construction field of water retaining dams, in particular to a hydraulic folding dam with fork-shaped rods and mechanical self-locking. Background technique

[0002] The hydraulic folding dam is a kind of dam that is powered by hydraulic cylinders to lift and fold. Its core components mainly include: support system (generally support rod), lifting system (hydraulic cylinder). There are many types of hydraulic dams on the market at present, and the lifting system is generally two hydraulic cylinders. The support system is generally a link mechanism with a locking cylinder (locked when the hydraulic dam rises to the final position) to ensure that the hydraulic dam can be stably at the end position when the hydraulic cylinder has no pressure oil. The structures of these traditional hydraulic folding dams are relatively complicated, and the support rods are not two-force rods, which are easily subjected to bending stress. C...

Examples

Embodiment Construction

[0020] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0021] Such as figure 1 As shown, a hydraulic folding dam with a fork-shaped rod and mechanical self-locking includes a dam foundation 1 and a door leaf 2 that is movably connected with the dam foundation 1. There are two sets of supporting devices between the dam foundation 1 and the door leaf 2, and each group includes The lower connecting rod 3 connected with the dam foundation 1, and the upper connecting rod 4 connected with the door leaf 2, the upper connecting rod 4 and the lower connecting rod 3 are movably connected. A hydraulic cylinder 5 fixedly connected to the dam foundation 1 is provided below the supporting device, a rotating shaft 7 is crossed at the top of the piston rod 6 of the hydraulic cylinder 5, and the lower end of the upp...

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