A dredger gate hinge sealing device and a dredger

Abstract

This utility model belongs to the field of dredging technology, specifically providing a dredging vessel mud door hinge sealing device and a dredging vessel. The dredging vessel mud door hinge sealing device is used to seal the connection between the hinge of the dredging vessel's mud door and the hull of the dredging vessel. A sealing surface is provided on the side of the mud door's hinge facing the mud hopper. The sealing device includes: a mounting groove disposed on the hull and located above the sealing surface; and a double-lip seal, one end of which is disposed in the mounting groove, and the other end having two sealing lips for sealing connections with the sealing surface. According to this utility model, the dredging vessel mud door hinge sealing device can improve the sealing effect while reducing weight and volume.

Description

Technical Field

[0001] This utility model relates to the field of dredging technology, specifically to a dredging door hinge sealing device and a dredging vessel. Background Technology

[0002] Currently, the sealing of the dredging vessel's door hinges typically uses finger-shaped solid sealing rubber, which is fixed to the hull by welding it with two flat iron bars. This method is inconvenient for both installation and disassembly. During installation, the finger-shaped solid sealing rubber needs to be overlapped onto one set of flat iron bars, and another set of flat iron bars is used to limit its movement. Then, on-site hot welding of the limiting flat iron bars is required, which easily leads to aging of the end sealing rubber of the finger-shaped solid sealing rubber due to high temperatures. Furthermore, because finger-shaped solid sealing rubber is large, mold manufacturing is inconvenient, resulting in a heavy weight and high cost after molding. In addition, since the finger-shaped solid sealing rubber only has a single point of contact on any cross-section, if local wear or aging occurs, the entire sealing strip will fail, resulting in poor sealing performance. Utility Model Content

[0003] In view of this, the present invention provides a sealing device for the mud door hinge of a dredger, which can improve the sealing effect while reducing weight and volume.

[0004] To solve at least one of the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] The first aspect of this utility model provides a sealing device for the hinge of a dredger's mud door, used for sealing between the hinge of the dredger's mud door and the hull of the dredger. A sealing surface is provided on the side of the mud door's hinge facing the mud hopper. The sealing device includes:

[0006] The mounting slot is located on the hull and above the sealing surface;

[0007] A double-lip seal, one end of which is set in the mounting groove and the two sealing lips at the other end are used to make sealing connections with the sealing surface respectively.

[0008] In one embodiment of this utility model, a transverse structural plate and a vertical structural plate and a vertical baffle are disposed opposite to each other on the lower surface of the transverse structural plate. The vertical baffle, the vertical structural plate and the transverse structural plate together form an installation groove.

[0009] In one embodiment of this utility model, the double-lip seal includes:

[0010] The base has the same length as the vertical baffle and the same width as the bottom of the mounting groove.

[0011] The two sealing lips are positioned opposite each other at both ends of the base along the width direction, and the length direction of the two sealing lips is consistent with the length direction of the vertical baffle.

[0012] In one embodiment of this utility model, the vertical structural plate is parallel to the vertical baffle, and each sealing lip includes:

[0013] The first sealing section is parallel to the vertical structural plate and is connected to the end of the base.

[0014] The second sealing section is inclined, with one end of the second sealing section connected to the end of the first sealing section away from the base, and the other end of the second sealing section being sealed to the sealing surface.

[0015] In one embodiment of this utility model, the inclination angle of the second sealing section relative to the first sealing section is 100°-120°.

[0016] In one embodiment of this utility model, the base and the two sealing lips are integrally formed.

[0017] In one embodiment of this utility model, the bottom of the vertical baffle is higher than the bottom of the vertical structural plate, the distance from the bottom of the vertical baffle to the sealing surface is greater than or equal to the width of the base, and the distance from the bottom of the vertical structural plate to the sealing surface is less than the width of the base.

[0018] In one embodiment of this utility model, a buffer gap is formed between the two sealing lips.

[0019] In one embodiment of this utility model, the double-lip seal is made of rubber.

[0020] This utility model also provides a dredger, including the dredger door hinge sealing device described in any of the above embodiments.

[0021] The above-mentioned technical solution of this utility model has at least one of the following beneficial effects:

[0022] This utility model discloses a sealing device for the mud gate hinge of a dredger. By setting an installation groove on the hull above the mud gate and installing a double-lip seal in the installation groove, no on-site hot work is required, thus avoiding rubber aging. At the same time, by setting a double-lip seal, dual-point contact can be achieved at any cross-section, improving the sealing effect while reducing weight and volume. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the hinge of the mud gate and the hull of the dredger in some other embodiments.

[0024] Figure 2 for Figure 1Schematic diagram of the structure in the AA direction;

[0025] Figure 3 This is a schematic diagram of the structure of the double-lip seal sealing the hinge of the mud gate of the dredger and the hull of the dredger in the embodiment of this utility model.

[0026] Figure 4 This is a schematic diagram of the structure of the double-lip seal entering the mounting groove in an embodiment of this utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the double-lip seal in the embodiment of this utility model.

[0028] Reference numerals: 100, mud gate; 200, hull; 101, finger-shaped solid sealing rubber; 110, sealing surface; 201, first flat iron; 202, second flat iron; 300, mounting groove; 310, transverse structural plate; 320, vertical structural plate; 330, vertical baffle; 400, double-lip seal; 410, base; 420, sealing lip; 421, first sealing section; 422, second sealing section. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0030] To facilitate understanding of the technical solution of this utility model, the technical problem to be solved by this utility model will be explained first.

[0031] like Figure 1 and Figure 2As shown, the sealing at the hinge of the dredging vessel's mud gate currently typically uses finger-shaped solid sealing rubber 101, which requires welding two flat irons to the hull 200 for fixation. Specifically, because the finger-shaped solid sealing rubber 101 is a solid structure and difficult to compress, during installation, the first flat iron 201 needs to be welded to the hull 200 first, and the flanged finger-shaped solid sealing rubber 101 is overlapped on the first flat iron 201. A second flat iron 202 is used to limit the finger-shaped solid sealing rubber 101. Then, the second flat iron 202 used for limiting needs to be welded on-site with hot welding. This easily leads to the end sealing rubber of the finger-shaped solid sealing rubber 101 aging due to high temperature. At the same time, because the finger-shaped solid sealing rubber 101 is a solid structure, it is large in volume, inconvenient to mold and manufacture, heavy after molding, and costly. Furthermore, since the finger-shaped solid sealing rubber 101 contacts the sealing surface 110 of the mud gate 100 at a single point on any cross section, if local wear or aging occurs, the entire rubber strip will fail to seal, resulting in poor sealing performance.

[0032] To solve the above-mentioned technical problems, this utility model provides a mud door hinge sealing device for a dredger and a dredger.

[0033] The following is a detailed description of a mud gate hinge sealing device for a dredger according to an embodiment of the present invention, with reference to the accompanying drawings.

[0034] like Figure 3 and Figure 4 As shown in the figure, the dredger door hinge sealing device of this utility model embodiment can be used for sealing between the hinge of the dredger door 100 and the hull 200 of the dredger. A sealing surface 110 is provided on the side of the hinge of the dredger door 100 facing the mud tank. Specifically, the sealing device may include: a mounting groove 300 and a double-lip seal 400. The mounting groove 300 is provided on the hull 200 and is located above the sealing surface 110. The double-lip seal 400 has one end disposed in the mounting groove 300 and two sealing lips 420 at its other end for sealing connection with the sealing surface 110 respectively.

[0035] In this embodiment, by setting an installation groove 300 on the hull 200 above the mud gate 100, and by pressing the double-lip seal 400 into the installation groove 300, no on-site hot work is required. This saves labor time and avoids rubber aging caused by high temperatures, thus extending the service life of the double-lip seal 400 and avoiding or reducing the risk of emergency seal replacement during dredging operations at sea. Simultaneously, the two sealing lips 420 of the double-lip seal 400 can be respectively sealed to the sealing surface 110, achieving dual-point contact on any cross-section, thereby improving the sealing effect while reducing weight and volume.

[0036] like Figure 3 and Figure 4 As shown, the hull 200 is provided with a transverse structural plate 310 and a vertical structural plate 320 and a vertical baffle 330 disposed opposite to each other on the lower surface of the transverse structural plate 310. The vertical baffle 330, the vertical structural plate 320 and the transverse structural plate 310 together form an installation groove 300.

[0037] In this embodiment, the double-lip seal 400 can be deformed by pressing, thereby placing it in the mounting groove 300. At this time, the transverse structural plate 310 serves as the top plate of the mounting groove 300, capable of withstanding the clamping force from the seal's installation direction. The vertical structural plate 320 and the vertical baffle 330 respectively form the inner sidewalls of the mounting groove 300, restricting the lateral displacement of the seal. Therefore, the structure of the mounting groove 300 provides positioning and fixing space for the double-lip seal 400, preventing displacement and improving the sealing effect.

[0038] like Figure 3 and Figure 5 As shown, the double-lip seal 400 also includes a base 410, the length direction of the base 410 is consistent with the length direction of the vertical baffle 330 and the width of the base 410 is consistent with the width of the bottom surface of the mounting groove 300; two sealing lips 420 are disposed opposite to each other at both ends of the base 410 along the width direction and the length direction of the two sealing lips 420 is consistent with the length direction of the vertical baffle 330.

[0039] In this embodiment, the length direction of the base 410 is consistent with the length direction of the vertical baffle 330, allowing the seal to be continuously installed along the entire sealing area of ​​the hinge of the mud gate 100, avoiding dead corners due to partial interruptions. Simultaneously, the width of the base 410 is consistent with the width of the bottom surface of the mounting groove 300, ensuring that the seal can seamlessly fit the bottom of the groove during installation, thus preventing displacement or detachment due to excessive gaps during use. Furthermore, two sealing lips 420 are symmetrically arranged at both ends of the width direction of the base 410, and their length direction is also consistent with the vertical baffle 330. This not only ensures continuous contact between the lips and the sealing surface 110, but also helps to form an effective sealing line on both sides simultaneously, thereby achieving a double sealing effect. The double sealing lips 420 can undergo elastic deformation under pressure, achieving linear or surface contact with the sealing surface 110 at the hinge of the mud gate 100, effectively absorbing minor displacements or vibrations caused by structural deviations, temperature changes, or working loads, improving the adaptability and reliability of the entire sealing system under complex sea conditions.

[0040] like Figure 3 and Figure 5As shown, the vertical structural plate 320 is parallel to the vertical baffle 330, and each sealing lip 420 includes a first sealing section 421 and a second sealing section 422. The first sealing section 421 is parallel to the vertical structural plate 320 and connected to the end of the base 410; the second sealing section 422 is inclined, with one end connected to the end of the first sealing section 421 away from the base 410, and the other end sealed to the sealing surface 110. The inclination angle of the second sealing section 422 relative to the first sealing section 421 is 100°-120°.

[0041] In this embodiment, the first sealing section 421 corresponding to the vertical structural plate 320 is tightly attached to the inner wall of the vertical structural plate 320 in the sealed state, and the first sealing section 421 corresponding to the vertical baffle 330 is tightly attached to the inner wall of the vertical baffle 330 in the sealed state, which can play the role of guidance and stable support; one end of the second sealing section 422 extends from the end of the first sealing section 421 and bends towards the sealing surface 110 at a certain angle, while the other end naturally or under pressure adheres to the sealing surface 110 provided at the hinge of the mud door 100 after installation, to achieve sealed contact. By setting the second sealing section 422 at an angle, an elastic movable area can be formed to adapt to the small displacement and angle change of the mud door 100 during the opening or closing process, and can also provide continuous elastic recovery force when compressed and deformed, ensuring that the sealing surface 110 and the sealing lip always maintain a stable and continuous contact state.

[0042] In one embodiment of this invention, the base 410 and the two sealing lips 420 are integrally formed. This avoids the risk of gaps or delamination caused by splicing multiple sealing segments, thus improving the structural integrity and reliability of the double-lip seal 400.

[0043] like Figure 3 As shown, the bottom of the vertical baffle 330 is higher than the bottom of the vertical structural plate 320, the distance from the bottom of the vertical baffle 330 to the sealing surface 110 is greater than or equal to the width of the base 410, and the distance from the bottom of the vertical structural plate 320 to the sealing surface 110 is less than the width of the base 410.

[0044] In this embodiment, the bottom of the vertical baffle 330 is higher than the bottom of the vertical structural plate 320, thus creating a certain height difference. Furthermore, the distance from the bottom of the vertical baffle 330 to the sealing surface 110 is greater than or equal to the width of the base 410, facilitating the installation of the double-lip seal 400. Simultaneously, the distance from the bottom of the vertical structural plate 320 to the sealing surface 110 is less than the width of the base 410. This not only blocks and limits the double-lip seal 400, facilitating its installation in the mounting groove 300, but also increases the contact area between the vertical structural plate 320 and the double-lip seal 400 in the sealed state. This provides a certain degree of enclosure or compression of the double-lip seal 400, enhancing its clamping and anti-slip properties, and improving the stability and anti-displacement capability of the seal in operation.

[0045] In one embodiment of this invention, a buffer gap is formed between the two sealing lips 420. This reduces the volume and weight of the double-lip seal 400, facilitating mold manufacturing and lowering costs.

[0046] In one embodiment of this utility model, the double-lip seal 400 is made of rubber. Rubber has good elasticity, wear resistance, and corrosion resistance, and can effectively adapt to the various complex working conditions faced by dredgers operating in marine environments for extended periods. Specifically, the sealing lip 420 of the rubber double-lip seal 400 has excellent elastic recovery capability. Even after minor deformations caused by factors such as the opening and closing of the dredging gate 100, vibration of the hull 200, or temperature changes, the sealing lip 420 can still maintain continuous contact with the sealing surface 110, thereby ensuring the long-term stability of the sealing performance. At the same time, the flexibility of rubber also helps to reduce the assembly difficulty of the seal during installation, improve the self-adaptability of the sealing surface 110, and reduce the risk of seal failure due to manufacturing or assembly tolerances.

[0047] This utility model also provides a dredger, including the dredger door hinge sealing device described in any of the above embodiments.

[0048] In summary, the sealing device for the mud gate hinge of this utility model, by setting an installation groove 300 on the hull 200 above the mud gate 100 and setting a double-lip seal 400 in the installation groove 300, eliminates the need for on-site hot work and avoids rubber aging. Furthermore, by setting the double-lip seal 400, dual-point contact can be achieved at any cross-section, improving the sealing effect while reducing weight and volume.

[0049] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "a" or "one," etc., do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "connected" or "linked," etc., are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up," "down," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship also changes accordingly.

[0050] The above are preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A sealing device for the mud gate hinge of a dredger, characterized in that, A seal is provided between the hinge of the mud gate of a dredger and the hull of the dredger, wherein a sealing surface is provided on the side of the mud gate facing the mud compartment, and the sealing device includes: The mounting slot is disposed on the hull and located above the sealing surface; A double-lip seal, wherein one end of the double-lip seal is disposed in the mounting groove and the two sealing lips at the other end are used to respectively seal and connect with the sealing surface.

2. The sealing device for the mud gate hinge of a dredger according to claim 1, characterized in that, The hull is provided with a transverse structural plate and a vertical structural plate and a vertical baffle disposed opposite to each other on the lower surface of the transverse structural plate. The vertical baffle, the vertical structural plate and the transverse structural plate together form the mounting groove.

3. The sealing device for the mud gate hinge of a dredger according to claim 2, characterized in that, The double-lip seal includes: The base has its length direction aligned with the length direction of the vertical baffle, and its width is aligned with the width of the bottom surface of the mounting groove. The two sealing lips are disposed opposite each other at both ends of the base along the width direction, and the length direction of the two sealing lips is consistent with the length direction of the vertical baffle.

4. The sealing device for the mud gate hinge of a dredger according to claim 3, characterized in that, The vertical structural plate is parallel to the vertical baffle, and each sealing lip includes: The first sealing section is parallel to the vertical structural plate and is connected to the end of the base; The second sealing section is inclined, one end of the second sealing section is connected to the end of the first sealing section away from the base, and the other end of the second sealing section is sealed to the sealing surface.

5. The sealing device for the mud gate hinge of a dredger according to claim 4, characterized in that, The second sealing section is tilted at an angle of 100°-120° relative to the first sealing section.

6. The sealing device for the mud gate hinge of a dredger according to claim 4, characterized in that, The base and the two sealing lips are integrally formed.

7. The sealing device for the mud gate hinge of a dredger according to claim 4, characterized in that, The bottom of the vertical baffle is higher than the bottom of the vertical structural plate, the distance from the bottom of the vertical baffle to the sealing surface is greater than or equal to the width of the base, and the distance from the bottom of the vertical structural plate to the sealing surface is less than the width of the base.

8. The sealing device for the mud gate hinge of a dredger according to claim 3, characterized in that, The two sealing lips are formed with a buffer gap.

9. The sealing device for the mud gate hinge of a dredger according to claim 1, characterized in that, The double-lip seal is made of rubber.

10. A dredger, characterized in that, Includes the dredging vessel door hinge sealing device as described in any one of claims 1-9.

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