CN215977158U

CN215977158U - Water stopping structure for shaft end of hydraulic dam bottom

Info

Publication number: CN215977158U
Application number: CN202122591830.4U
Authority: CN
Inventors: 刘刚
Original assignee: Yangzhou Feilong Pneumatic Equipment Co ltd
Current assignee: Yangzhou Feilong Pneumatic Equipment Co ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2022-03-08
Anticipated expiration: 2031-10-27

Abstract

A hydraulic dam bottom shaft end water stopping structure relates to the field of hydraulic engineering and comprises a bottom shaft with a central hole, wherein an end water stopping part is arranged at the end part of the bottom shaft, a manual operation opening is formed in the wall of the end part of the bottom shaft, an end water stopping gland is arranged in the end water stopping part, an end cover is arranged between the end water stopping part and the bottom shaft, and the end water stopping gland, the end water stopping part and the end cover are connected through detachable connecting pieces; the inner wall of the end part of the bottom shaft is connected with a bracket, the bracket is positioned at the manual operation opening and is positioned on the inner side of an end cover, and the end cover is connected with the bracket through a connecting screw. The utility model improves the original fixed structure into the movable structure, and is convenient to replace the water stopping pieces at the two ends of the bottom shaft, thereby ensuring the water stopping effect of the gate.

Description

Water stopping structure for shaft end of hydraulic dam bottom

Technical Field

The utility model relates to the field of hydraulic engineering, in particular to a water-stopping sealing technology for a shaft end at the bottom of a hydraulic dam.

Background

The hydraulic pressure dam is installed between the floodgate wall of river course both sides, and the structure of hydraulic pressure dam at present comprises bottom shaft, door leaf, a hinge seat and headstock gear, and the bottom shaft has many, and the bottom shaft passes through the hinge seat to be installed on the ground, and the lower extreme of door leaf is connected on the bottom shaft, drives the door leaf rotation through the headstock gear. The bottom shaft both ends are the rubber stagnant water, realize between bottom shaft and the floodgate wall, carry out the stagnant water between two adjacent bottom shafts and seal, but rubber stagnant water installation is complete spacing after accomplishing, and long-time operation rubber damages and hardly changes basically, and the change then needs to dismantle the bottom shaft, not only causes a large amount of time wastes, and the damage of bottom shaft still probably causes in addition, causes unnecessary economic loss.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art, and provides a water stopping structure for the shaft end of the hydraulic dam bottom, which is convenient for replacing a water stopping component of the shaft end.

The purpose of the utility model is realized as follows: the end part water stopping structure of the bottom shaft of the hydraulic dam comprises a bottom shaft with a central hole, wherein an end part water stopping piece is arranged at the end part of the bottom shaft, a manual operation opening is arranged on the wall of the end part of the bottom shaft, an end part water stopping gland is arranged in the end part water stopping piece, an end cover is arranged between the end part water stopping piece and the bottom shaft, and the end part water stopping gland, the end part water stopping piece and the end cover are connected through detachable connecting pieces; the inner wall of the end part of the bottom shaft is connected with a bracket, the bracket is positioned at the manual operation opening and is positioned on the inner side of an end cover, and the end cover is connected with the bracket through a connecting screw.

The utility model improves the original fixed structure into the movable structure, and is convenient to replace the water stopping pieces at the two ends of the bottom shaft, thereby ensuring the water stopping effect of the gate.

The support is also connected with a plurality of tightening nuts, each tightening nut is connected with a tightening bolt, and the end part of each tightening bolt is in contact with the end cover. After the equipment is installed, a gap is formed at the butt joint of two adjacent bottom shafts, the tightening bolt can be rotated to move the end cover and the end water stopping piece outwards, fine adjustment is carried out, and the sealing performance of end water stopping is guaranteed.

The detachable connecting piece comprises a water stop fixing screw and a nut, and the nut is welded on the water stop pressure cover at the end part.

In order to ensure the sealing performance between the bottom shaft and the end cover, an annular rubber sealing element is arranged between the bottom shaft and the end cover.

The annular rubber sealing element of the utility model comprises two pieces, and an adjusting gasket is arranged between the two pieces of annular rubber sealing elements. When the end part is adjusted to stop water, the gap between the end cover and the bottom shaft is too large, and a plurality of adjusting gaskets with the thickness of 2mm can be configured for adjustment.

In order to rotate the water stopping fixing screw conveniently, the support is in a cross shape.

When the end water stop part is worn and needs to be replaced, an operator stretches into the bottom shaft from a manual operation opening, unscrews the water stop fixing screw and the puller bolt → takes out the end water stop part and the end water stop gland → unscrews the connecting screw → takes out the end cover → replaces the annular rubber sealing part → installs and fixes the end cover → puts the end water stop gland into the replaced end water stop part and then fixes the end cover → adjusts the end through the puller bolt → adjusts a 2mm adjusting gasket between the two annular rubber sealing parts for adjustment when the gap is too large.

Drawings

Fig. 1 is a first structural diagram of the present invention.

Fig. 2 is a view from a-a in fig. 1.

Fig. 3 is an enlarged view of a portion B in fig. 1.

Fig. 4 is a second structural diagram of the present invention.

Detailed Description

Example 1

As shown in fig. 1 to 3, the hydraulic dam bottom shaft end water stopping structure comprises a bottom shaft 5 provided with a central hole, a manual operation opening 8 is formed in the wall of the end portion of the bottom shaft, an end cover 3 and an end water stopping piece 2 are arranged at the end portion of the bottom shaft 5, the end cover 3 is located on the inner side of the end water stopping piece 2, and an annular rubber sealing piece 4 is arranged between the end cover 3 and the bottom shaft 5 to guarantee the sealing performance between the end cover 3 and the bottom shaft 5. Set up tip stagnant water gland 1 in tip stagnant water spare 2, tip stagnant water gland 1, tip stagnant water spare 2 and end cover 3 are connected through dismantling the connecting piece, can dismantle the connecting piece and include stagnant water set screw 7 and nut 12, and nut 12 welds 1 on tip stagnant water gland, and stagnant water set screw 7 passes end cover 3, tip stagnant water spare 2 and tip stagnant water gland 1 back and is connected with nut 12, and stagnant water set screw 7 is fixed tightening up tip stagnant water spare 2 inside bottom shaft 5.

The cross-shaped bracket 11 is welded on the inner wall of the end part of the bottom shaft 5, the bracket 11 is positioned at the manual operation opening 8 and is positioned on the inner side of the end cover 3, the end cover 3 is connected with the bracket 11 through the connecting screw 6, and the end cover 3 is fixed without moving. Four jacking nuts 10 are further connected to the support 11, the four jacking nuts 10 are arranged on the periphery of the connecting screw 6, each jacking nut 10 is connected with a jacking bolt 9, and the end portion of each jacking bolt 9 is in contact with the end cover 3. The puller bolt 9 can be properly adjusted outwards to ensure that the end part is watertight.

Example 2

As shown in fig. 3, the annular rubber seal 4 has two pieces, and a spacer 14 is provided between the two pieces of the annular rubber seal 4. The rest of the structure is the same as that of example 1. When the end part is adjusted to stop water, the gap between the end cover 3 and the bottom shaft 5 is too large, and a plurality of adjusting gaskets 14 with the thickness of 2mm can be arranged for adjustment.

When the end water stop member is worn and needs to be replaced, an operator extends into the bottom shaft from a manual operation opening, unscrews the water stop fixing screw 7 and the puller bolt 9 → takes out the end water stop member 2 and the end water stop gland 1 → unscrews the connecting screw 6 → takes out the end cover 3 → replaces the annular rubber seal 4 → installs and fixes the end cover 3 → puts the end water stop gland 1 into the replaced end water stop member 2 and then fixes the end cover 3 → adjusts the end water stop through the puller bolt 9 → arranges a 2mm adjusting gasket 14 between the two annular rubber seal members 4 for adjustment when the gap is too large. Thereby ensuring a water-tight seal between the bottom shaft 5 and the gate wall 13.

Claims

1. Hydraulic dam base axle head stagnant water structure, including the end axle that is equipped with the centre bore, set up tip stagnant water spare, characterized by at the tip of end axle: a manual operation opening is formed in the wall of the end part of the bottom shaft, an end water stopping gland is arranged in the end water stopping piece, an end cover is arranged between the end water stopping piece and the bottom shaft, and the end water stopping gland, the end water stopping piece and the end cover are connected through a detachable connecting piece; the inner wall of the end part of the bottom shaft is connected with a bracket, the bracket is positioned at the manual operation opening and is positioned on the inner side of an end cover, and the end cover is connected with the bracket through a connecting screw.

2. The hydraulic dam bottom shaft end water stopping structure as claimed in claim 1, wherein: the support is further connected with a plurality of tightening nuts, each tightening nut is connected with a tightening bolt, and the end portion of each tightening bolt is in contact with the end cover.

3. The hydraulic dam bottom shaft end water stopping structure as claimed in claim 1, wherein: the detachable connecting piece comprises a water stop fixing screw and a nut, and the nut is welded on the end water stop pressure cover.

4. The hydraulic dam bottom shaft end water stopping structure as claimed in claim 1, wherein: an annular rubber sealing element is arranged between the bottom shaft and the end cover.

5. The hydraulic dam bottom shaft end water stopping structure as claimed in claim 4, wherein: the annular rubber sealing elements are provided with two pieces, and an adjusting gasket is arranged between the two pieces of annular rubber sealing elements.

6. The hydraulic dam bottom shaft end water stopping structure as claimed in claim 1, wherein: the support is in a cross shape.