Screw hole sleeve type plugging cover for culvert

Abstract

The utility model relates to the technical field of hydraulic engineering, concretely is a kind of cover of plugging of nested type of culvert gate screw hole, including base, the surface of base is fixedly connected with first limiting outer ring, the surface of base is fixedly connected with waterproof rubber mat.The utility model is connected by base and waterproof rubber mat, base and waterproof rubber mat can be installed on the surface of culvert gate screw type hoist screw hole, so that cover top is lifted by screw rod, so that nested type cover body surface is elongated, until second limiting inner ring contacts second limiting outer ring, and then drive nested type cover body to move on the surface of base, again by the connection of nested type cover body and first limiting inner ring, the elongation position of nested type cover body can be limited, nested type cover body moves along with the movement of cover top, so that culvert gate screw type hoist screw hole plugging effect cannot be weakened, to guarantee the effect of culvert gate screw type hoist screw hole plugging cannot be weakened.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, specifically to a culvert screw hole stacked sealing cover. Background Technology

[0002] When a culvert gate screw hoist is in operation, the hoist screw needs to rise and fall as the culvert gate opens and closes. The hoist room usually has a screw hole in the roof for the screw. To ensure smooth screw movement, this hole is usually quite large. Moreover, culvert gates are generally built in the field, and rainwater and snowmelt can easily flow into the hoist room through the screw hole during rain and snowfall, flowing onto the hoist's electrical machinery. This can easily lead to corrosion of the hoist's machinery, damage to the electrical equipment wiring, and safety hazards. Therefore, the screw hole must be sealed with a sealing device. However, when using existing sealing devices, some culvert gate hoist rooms do not have sealing devices, and some installed sealing devices cannot rise with the screw. When the screw extends out of the screw hole, the device becomes ineffective. Utility Model Content

[0003] The purpose of this utility model is to provide a culvert screw hole stacked sealing cover to solve the problems mentioned in the background art, such as the lack of sealing devices in some culvert gate opening and closing machine rooms, and the inability of some installed sealing devices to rise with the screw, resulting in the device losing its function when the screw extends out of the screw hole.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a culvert screw hole stacked sealing cover, comprising a base, a first limiting outer ring fixedly connected to the surface of the base, a waterproof gasket fixedly connected to the surface of the base, a stacked cover body movably connected to the surface of the base, a first limiting inner ring fixedly connected to the inside of the stacked cover body, a second limiting outer ring fixedly connected to the surface of the stacked cover body, a cover top movably connected to the surface of the stacked cover body, a second limiting inner ring fixedly connected to the inside of the cover top, a connecting groove formed on the surface of the first limiting inner ring, a fixed shaft fixedly connected inside the connecting groove, and ball bearings rotatably connected to the surface of the fixed shaft.

[0005] Preferably, the surface of the base has a first mounting hole, and the surface of the waterproof pad has a second mounting hole.

[0006] Preferably, the cover is composed of two parts, one part of which is cylindrical and the other part is conical.

[0007] Preferably, the first limiting inner ring is connected to the first limiting outer ring by a surface abutment through a nested cover.

[0008] Preferably, the second limiting inner ring is connected by the surface abutting of the cover top and the second limiting outer ring.

[0009] Preferably, the connecting grooves are evenly distributed on the surface of the first limiting inner ring, and the balls are rolledly connected to the surfaces of the fixed shaft and the base.

[0010] Preferably, the connecting grooves are evenly distributed on the surface of the second limiting inner ring, and the balls are connected by rolling contact between the fixed shaft and the surface of the nested cover.

[0011] Preferably, the outer diameter of the first limiting outer ring is larger than the inner diameter of the first limiting inner ring, and the outer diameter of the second limiting inner ring is larger than the inner diameter of the second limiting outer ring.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] By connecting the base and the waterproof gasket, the base and waterproof gasket can be installed on the surface of the screw hole of the sluice gate screw hoist to seal the screw hole. Then, by connecting the overlapping cover and the top cover, the top cover can be lifted by the screw, thus extending on the surface of the overlapping cover. The extension position of the top cover is limited by the connection between the top cover and the second limiting inner ring, and the connection between the overlapping cover and the second limiting outer ring, until the second limiting inner ring contacts the second limiting outer ring, thereby driving the overlapping cover to move on the surface of the base. The extension position of the overlapping cover is further limited by the connection between the overlapping cover and the first limiting inner ring, and the connection between the base and the first limiting outer ring. The overlapping cover moves with the movement of the top cover, thus ensuring that the sealing effect of the sluice gate screw hoist screw hole is not weakened.

[0014] By connecting the first limiting inner ring and the connecting groove, and by connecting the fixed shaft and the ball, the friction between the base and the first limiting inner ring can be reduced by the rolling of the ball. By connecting the second limiting inner ring and the connecting groove, and by connecting the fixed shaft and the ball, the friction between the second limiting outer ring and the top cover can be reduced by the rolling of the ball. This reduces the wear generated when the nested cover body and the top cover move, thereby improving the service life of the nested cover body and the top cover. Attached Figure Description

[0015] Figure 1 This is a three-dimensional front view of the structure of this utility model;

[0016] Figure 2 This is a partial cross-sectional view of the structure of this utility model from the front view.

[0017] Figure 3 This is a frontal three-dimensional exploded view of the structure of this utility model;

[0018] Figure 4This is a partial perspective sectional view of the connection structure between the base and the nested cover of this utility model;

[0019] Figure 5 This is a partial three-dimensional sectional view of the connection structure between the nested cover body and the top cover of this utility model.

[0020] In the diagram: 1. Base; 2. First limiting outer ring; 3. Waterproof rubber pad; 4. Cascading cover; 5. First limiting inner ring; 6. Second limiting outer ring; 7. Cover top; 8. Second limiting inner ring; 9. Connecting groove; 10. Fixed shaft; 11. Ball bearing. Detailed Implementation

[0021] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 One embodiment provided by this utility model:

[0023] A culvert screw hole nested sealing cover includes a base 1 for mounting on the surface of the screw hole of a culvert screw-type hoist. A first limiting outer ring 2 is fixedly connected to the surface of the base 1 to limit the movement of the nested cover body 4. A waterproof gasket 3 is fixedly connected to the surface of the base 1 to improve the sealing between the base 1 and the screw hole of the culvert screw-type hoist. The nested cover body 4 is movably connected to the surface of the base 1 to protect the screw hole of the culvert screw-type hoist. A first limiting inner ring 5 is fixedly connected inside the nested cover body 4 to limit the movement of the nested cover body 4. A second limiting ring 5 is fixedly connected to the surface of the nested cover body 4. The outer ring 6 is used to limit the movement of the top cover 7. The surface of the nested cover body 4 is movably connected to the top cover 7 to increase the waterproof and rainproof effect. The inside of the top cover 7 is fixedly connected to the second limiting inner ring 8 to limit the movement of the top cover 7. The surface of the first limiting inner ring 5 is provided with a connecting groove 9 for the movement of the ball bearing 11. The inside of the connecting groove 9 is fixedly connected to the fixed shaft 10 for connecting the ball bearing 11. The surface of the fixed shaft 10 is rotatably connected to the ball bearing 11, which rolls with the movement of the nested cover body 4 and the top cover 7, thereby reducing the friction between the base 1 and the first limiting inner ring 5, the nested cover body 4 and the second limiting inner ring 8.

[0024] Furthermore, the surface of the base 1 is provided with a first mounting hole, and the surface of the waterproof gasket 3 is provided with a second mounting hole, which is used to install the base 1 and the waterproof gasket 3 on the screw hole surface of the culvert screw-type hoist by screws, thereby protecting them. The waterproof gasket 3 and the fixing bolt hole of the culvert screw-type hoist are sealed with waterproof glue to further increase the waterproof effect.

[0025] Furthermore, the canopy 7 consists of two parts: one part of the canopy 7 is cylindrical, and the other part of the canopy 7 is conical. The conical design further enhances the waterproof and rainproof effect. When the culvert screw-type gate hoist is not in use, the stacked canopy body 4 and canopy 7 are stacked on the surface of the base 1, which reduces the height of the device and prevents displacement and damage due to strong winds.

[0026] Furthermore, the first limiting inner ring 5 is connected to the first limiting outer ring 2 by the surface abutting of the nested cover body 4. After the cover top 7 is lifted to the maximum extension position by the screw of the culvert screw type hoist, the second limiting outer ring 6 is moved upward by the second limiting inner ring 8, which in turn causes the first limiting inner ring 5 to extend until the maximum extension position, so that the nested cover body 4 and the first limiting inner ring 5 abut together, limiting the extension position of the nested cover body 4.

[0027] Furthermore, the second limiting inner ring 8 is connected by the surface abutting of the top cover 7 and the second limiting outer ring 6. The screw of the culvert screw type hoist lifts the top cover 7 to the maximum extension position, so that the second limiting outer ring 6 and the second limiting inner ring 8 abut together, limiting the extension position of the top cover 7.

[0028] Furthermore, the connecting grooves 9 are evenly distributed on the surface of the first limiting inner ring 5. The balls 11 are connected to the surface of the base 1 by the fixed shaft 10. The evenly distributed connecting grooves 9 connect multiple sets of balls 11. The extended stacked cover 4 drives the first limiting inner ring 5 to move, thereby driving multiple sets of balls 11 to roll on the surface of the base 1, thereby reducing the friction between the base 1 and the first limiting inner ring 5.

[0029] Furthermore, the connecting grooves 9 are evenly distributed on the surface of the second limiting inner ring 8. The balls 11 are rolled and connected to the surface of the nested cover 4 via the fixed shaft 10. The evenly distributed connecting grooves 9 connect multiple sets of balls 11. The extension of the cover top 7 drives the second limiting inner ring 8 to move, thereby driving multiple sets of balls 11 to roll on the surface of the nested cover 4, thereby reducing the friction between the nested cover 4 and the second limiting inner ring 8.

[0030] Furthermore, the outer diameter of the first limiting outer ring 2 is larger than the inner diameter of the first limiting inner ring 5. After the first limiting inner ring 5 moves to the surface of the first limiting outer ring 2, it will restrict the movement distance of the nested cover 4 and the first limiting inner ring 5, preventing the nested cover 4 from detaching from the surface of the base 1. The outer diameter of the second limiting inner ring 8 is larger than the inner diameter of the second limiting outer ring 6. After the second limiting inner ring 8 moves to the surface of the second limiting outer ring 6, it will restrict the movement distance of the cover top 7 and the second limiting inner ring 8, preventing the cover top 7 from detaching from the surface of the nested cover 4.

[0031] Working principle: When using the base 1, the base 1 and the waterproof gasket 3 are first installed on the surface of the screw hole of the sluice gate screw hoist with screws to protect it. When the sluice gate screw hoist is started, the screw moves and pushes against the inside of the cover 7, causing the cover 7 to extend until it reaches the maximum extension position. Then, the second limiting outer ring 6 and the second limiting inner ring 8 abut together, limiting the extension position of the cover 7. Then, the second limiting outer ring 6 is driven to move by the second limiting inner ring 8, which in turn drives the first limiting inner ring 5 to extend until it reaches the maximum extension position, so that the stacked cover 4 and the first limiting inner ring 5 abut together, limiting the extension position of the stacked cover 4. When the screw of the sluice gate screw hoist returns to its original position, the stacked cover 4 and the cover 7 retract and stack on the surface of the base 1.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A culvert screw hole stacking type sealing cover, comprising a base (1), characterized in that: The surface of the base (1) is fixedly connected to a first limiting outer ring (2), the surface of the base (1) is fixedly connected to a waterproof rubber pad (3), the surface of the base (1) is movably connected to a nested cover (4), the inside of the nested cover (4) is fixedly connected to a first limiting inner ring (5), the surface of the nested cover (4) is fixedly connected to a second limiting outer ring (6), the surface of the nested cover (4) is movably connected to a cover top (7), the inside of the cover top (7) is fixedly connected to a second limiting inner ring (8), the surface of the first limiting inner ring (5) is provided with a connecting groove (9), the inside of the connecting groove (9) is fixedly connected to a fixed shaft (10), and the surface of the fixed shaft (10) is rotatably connected to a ball bearing (11).

2. The culvert screw hole stacking sealing cover according to claim 1, characterized in that: The base (1) has a first mounting hole on its surface, and the waterproof pad (3) has a second mounting hole on its surface.

3. The culvert screw hole stacking sealing cover according to claim 1, characterized in that: The dome (7) consists of two parts: one part of the dome (7) is cylindrical and the other part of the dome (7) is conical.

4. A culvert screw hole stacking sealing cover according to claim 1, characterized in that: The first limiting inner ring (5) is connected by the surface abutment of the nested cover (4) and the first limiting outer ring (2).

5. A culvert screw hole stacking sealing cover according to claim 1, characterized in that: The second limiting inner ring (8) is connected by the surface abutment of the cover top (7) and the second limiting outer ring (6).

6. A culvert screw hole stacking sealing cover according to claim 1, characterized in that: The connecting groove (9) is evenly opened on the surface of the first limiting inner ring (5), and the ball (11) is rolledly connected to the surface of the fixed shaft (10) and the base (1).

7. A culvert screw hole stacking sealing cover according to claim 1, characterized in that: The connecting groove (9) is evenly opened on the surface of the second limiting inner ring (8), and the ball (11) is rolledly connected to the surface of the fixed shaft (10) and the nested cover (4).

8. A culvert screw hole stacking sealing cover according to claim 1, characterized in that: The outer diameter of the first limiting outer ring (2) is greater than the inner diameter of the first limiting inner ring (5), and the outer diameter of the second limiting inner ring (8) is greater than the inner diameter of the second limiting outer ring (6).

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