Waterproof supporting sleeve for bottom shaft

Abstract

The utility model relates to the technical field of water conservancy projects, and particularly discloses a waterproof supporting sleeve for a bottom shaft, which is used for solving the problem of insufficient connection sealing performance in the prior art. Comprising a shaft sleeve body used for sleeving the outer side of a bottom shaft, a connecting piece used for being connected with a wall is arranged on the outer side of the shaft sleeve body, an inner mounting groove is formed in the inner side of the shaft sleeve body, at least one isolation ring is arranged in the inner mounting groove in a matched mode, and a limiting baffle ring used for limiting the isolation ring is arranged at one end of the inner mounting groove. The supporting sleeve is arranged in the wall body, and a wear-resisting structure is arranged between the shaft sleeve body and the bottom shaft, so that the wear-resisting coefficient of the supporting position of the bottom shaft is greatly improved, and the service life of equipment is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy projects, in particular to a bottom shaft waterproof support sleeve. Background Art

[0002] A gate is a control facility for closing and opening a water discharge (release) channel. It is an important part of a hydraulic structure and can be used to intercept water flow, control water level, regulate flow rate, discharge sediment and floating objects, etc.; Gates include rotating gates and vertical gates. When setting a rotating gate, the lower end of the gate panel rotates around the bottom shaft, and the bottom shaft needs to rotate around its axis. The support of the bottom shaft requires a support structure. Otherwise, the bottom shaft cannot rotate stably, which is not conducive to the normal operation of the gate. At present, concrete walls are generally used as the support structure for the bottom shaft of rotating gates. The concrete material itself has the characteristics of relatively loose texture and limited hardness. During the long-term and frequent rotation of the bottom shaft, continuous friction will occur at the contact part between the two. Over time, serious wear will appear on the surface of the concrete wall, and the debris generated by the wear may also enter the gap between the bottom shaft and the support structure, aggravating the friction loss.

[0003] This kind of wear will not only change the matching accuracy between the bottom shaft and the support structure, resulting in unstable phenomena such as shaking and deviation when the bottom shaft rotates, affecting the smoothness and accuracy of the gate rotation, but also damage the sealing structure between the two. Insufficient sealing performance will cause water to leak from the wear gap. On the one hand, it will cause waste of water resources. On the other hand, the leaked water may further erode the concrete wall, accelerating the damage of the wall and shortening the overall service life of the gate.

[0004] Based on this, a bottom shaft waterproof support sleeve is now provided, which can eliminate the drawbacks of the existing device. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a bottom shaft waterproof support sleeve, which solves the problem of insufficient connection sealing performance in the prior art.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A bottom shaft waterproof support sleeve includes a sleeve body for sleeving outside the bottom shaft. A connecting piece for connecting with the wall is arranged on the outside of the sleeve body. An installation inner groove is arranged on the inner side of the sleeve body. At least one isolation ring is arranged in the installation inner groove in a matching manner. A limiting retaining ring for limiting the isolation ring is arranged at one end of the installation inner groove, and a movable limiting component for limiting the isolation ring is arranged at the other end of the installation inner groove.

[0008] On the basis of the above technical solutions, the utility model also provides the following optional technical solutions:

[0009] In an alternative embodiment: The isolation ring is made of stainless steel material.

[0010] In an alternative embodiment: The isolation ring is a split structure composed of two semi - circles.

[0011] In an alternative embodiment: The movable limit assembly includes an installation notch provided at the other end of the installation inner groove, and a movable retaining ring is provided in cooperation with the installation notch position. The movable retaining ring is connected to the bushing body through a plurality of bolt members.

[0012] In an alternative embodiment: A plurality of sealing rings are further provided between the movable retaining ring and the isolation ring, and an isolation area is formed between the movable retaining ring and the isolation ring through the sealing rings.

[0013] In an alternative embodiment: One side of the sealing ring is provided with a groove, and the other side is provided with a protrusion matching the groove.

[0014] In an alternative embodiment: The inner diameters of the movable retaining ring and the limit retaining ring are smaller than the inner diameter of the isolation ring.

[0015] In an alternative embodiment: The number of isolation rings is more than two, and auxiliary sealing rings can be provided between adjacent isolation rings, which helps to improve the sealing effect.

[0016] In an alternative embodiment: The connecting member includes at least one reinforcing ring, and an auxiliary ring is provided outside the reinforcing ring.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] By constructing a support sleeve inside the wall and constructing a wear - resistant structure between the bushing body and the bottom shaft, the present utility model greatly improves the wear - resistant coefficient of the support position of the bottom shaft, so that the service life of the equipment is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of one side of the present utility model.

[0020] Figure 2 It is a schematic structural diagram of the other side of the present utility model.

[0021] Figure 3 It is a schematic internal structural diagram of the present utility model.

[0022] Annotation of reference numerals in the drawings: Bushing body 100, outer groove 101, installation inner groove 102, limit retaining ring 103;

[0023] Reinforcing ring 200, auxiliary ring 201;

[0024] Movable retaining ring 300, bolt member 301, sealing ring 302, isolation ring 303. Detailed implementation mode

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] As Figures 1-3 shown, the embodiment of the present invention provides a bottom shaft waterproof support sleeve, including a sleeve body 100 for sleeving outside the bottom shaft. A connecting piece for connecting with the wall is arranged outside the sleeve body 100. An installation inner groove 102 is arranged inside the sleeve body 100. At least one isolation ring 303 is cooperatively arranged in the installation inner groove 102. A limiting retaining ring 103 for limiting the isolation ring 303 is arranged at one end of the installation inner groove 102. Dividing the filled isolation ring 303 into multiple parts reduces the processing difficulty and is also convenient for later replacement. An active limiting component for limiting the isolation ring 303 is arranged at the other end of the installation inner groove 102. The isolation ring 303 is limited by the active limiting component so as to match the installation inner groove 102 and prevent the isolation ring 303 from detaching;

[0027] An outer groove 101 is further arranged outside the sleeve body 100 to further improve the contact degree with the wall;

[0028] The isolation ring 303 is made of stainless steel material, effectively improving the service life of the component;

[0029] The isolation ring 303 here can adopt a split structure composed of two semi-circles, which is convenient for later replacement of the isolation ring 303;

[0030] The active limiting component includes an installation notch arranged at the other end of the installation inner groove 102. An active retaining ring 300 is cooperatively arranged at the installation notch position. The active retaining ring 300 is connected with the sleeve body 100 through a plurality of bolt parts 301, so that the installation port of the isolation ring 303 is blocked, and it is also convenient for replacement after later disassembly;

[0031] A plurality of sealing rings 302 are further arranged between the active retaining ring 300 and the isolation ring 303. An isolation area is formed between the active retaining ring 300 and the isolation ring 303 through the sealing rings 302, and the isolation area here also has a buffering effect. When the isolation ring 303 deviates, the sealing rings 302 here can also assist in energy absorption;

[0032] One side of the sealing ring 302 is provided with a groove, and the other side is provided with a protrusion matching the groove, so that a plurality of sealing rings 302 are nested with each other, improving the compactness of the structure;

[0033] The inner diameters of the movable retaining ring 300 and the limit retaining ring 103 are smaller than the inner diameter of the isolation ring 303, thus avoiding the problem that the movable retaining ring 300 and the isolation ring 303 contact the outer side of the bottom shaft;

[0034] When the number of the isolation rings 303 is two, an auxiliary sealing ring can be arranged between adjacent isolation rings 303, which helps to improve the sealing effect;

[0035] The connecting piece includes at least one reinforcing ring 200. An auxiliary ring 201 is arranged on the outer side of the reinforcing ring 200. The auxiliary ring 201 and the reinforcing ring 200 are embedded into the wall body. When the auxiliary ring 201 and the reinforcing ring 200 are filled into the wall body, the fixing effect of the bushing body 100 itself is improved.

[0036] Working principle: In actual use, the bushing body 100 is fixed in the wall body, and then concrete is poured on the outer side of the bushing body 100. Through the arrangement of the auxiliary ring 201 and the reinforcing ring 200, the connection of the bushing body 100 is made more stable. Then, a plurality of isolation rings 303 are arranged on the inner wall of the bushing body 100. The isolation rings 303 are made of stainless steel material, so that a wear-resistant surface can be constructed inside the bushing body 100, which can provide a supporting force for the bottom shaft and enable the bottom shaft to rotate stably.

[0037] 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 principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A bottom shaft waterproof support sleeve, comprising a sleeve body (100) for sleeved on the outside of the bottom shaft, characterized in that: The outer side of the shaft sleeve body (100) is provided with a connecting piece for connecting to a wall, the inner side of the shaft sleeve body (100) is provided with an installation inner groove (102), at least one isolation ring (303) is provided in the installation inner groove (102), one end of the installation inner groove (102) is provided with a limit ring (103) for limiting the isolation ring (303), and the other end of the installation inner groove (102) is provided with a movable limit assembly for limiting the isolation ring (303).

2. The bottom shaft waterproof support sleeve according to claim 1, characterized in that: The isolation ring (303) is made of stainless steel.

3. The bottom shaft waterproof support sleeve according to claim 1, characterized in that: The isolation ring (303) adopts a split structure consisting of two semicircles.

4. The bottom shaft waterproof support sleeve according to claim 1, characterized in that: The movable limiting assembly comprises a mounting notch arranged at the other end of the mounting inner groove (102), a movable retaining ring (300) is arranged at the mounting notch, and the movable retaining ring (300) is connected to the shaft sleeve body (100) via a plurality of bolts (301).

5. The bottom shaft waterproof support sleeve according to claim 4, characterized in that: A plurality of sealing rings (302) are also provided between the movable retaining ring (300) and the isolation ring (303), and an isolation zone is formed between the movable retaining ring (300) and the isolation ring (303) through the sealing rings (302).

6. The bottom shaft waterproof support sleeve according to claim 5, characterized in that: The sealing ring (302) has a groove on one side and a protrusion matching the groove on the other side.

7. The bottom shaft waterproof support sleeve according to claim 4, characterized in that: The inner diameters of the movable retaining ring (300) and the limiting retaining ring (103) are smaller than the inner diameter of the isolation ring (303).

8. The bottom shaft waterproof support sleeve according to claim 5, characterized in that: The number of the isolation rings (303) is greater than two, and auxiliary sealing rings are provided between adjacent isolation rings (303).

9. The bottom shaft waterproof support sleeve according to claim 1, characterized in that: The connecting piece comprises at least one reinforcement ring (200), and an auxiliary ring (201) is arranged outside the reinforcement ring (200).

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