Protective cover

Abstract

The utility model relates to the technical field of ships, and discloses a protective cover. The protective cover comprises a telescopic base, a sleeving base and a sealing strip. The telescopic seat comprises a first flange plate, an extension pipe and a penetrating head; two ends of the extension pipe are respectively connected with the first flange and the insertion head; the insertion head comprises a connecting part and a sliding part, and the sliding part extends from the connecting part to the direction away from the extension pipe; the interior of the sleeving seat is communicated with the interior of the telescopic seat to form an accommodating cavity; the sleeving seat comprises a second flange plate, a peripheral pipe and a joint; the two ends of the peripheral pipe are connected with the second flange plate and the joint respectively, and the joint is movably connected with the sliding part; and the sealing strip is clamped between the insertion head and the joint head. The telescopic base and the sleeving base are communicated to form the containing cavity, the transmission shaft can be arranged in the containing cavity in a penetrating mode, full-angle protection on the transmission shaft is achieved, meanwhile, the joint head and the sliding part are movably connected, it is guaranteed that the relative position between the telescopic base and the sleeving base is adjustable, the use requirements of different sizes are met, and the use adaptability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ships, in particular to a protective cover. Background Art

[0002] The mechanical structure of a ship contains a large number of transmission shafts. In order to protect the transmission shafts and prevent objects from falling on the transmission shafts or being entangled on the transmission shafts, which may cause transmission failures or even fires, shaft system protection covers are installed on the transmission shafts. Therefore, shaft system protection covers have become a commonly used outfitting part in the mechanical structure of ships. Existing shaft system protection covers are fixed on the top of the transmission shafts with an integrated structure according to the design dimensions. However, the existing protection covers can only protect the upper area of ​​the transmission shafts, the protection angle is incomplete, and they cannot meet the use requirements of different sizes, and have poor adaptability. Utility Model Content

[0003] The technical problems to be solved by the utility model are:

[0004] The protection angle of the protective cover is incomplete and has poor adaptability.

[0005] In order to solve the above technical problems, the utility model provides a protective cover, comprising:

[0006] A telescopic seat, the telescopic seat comprising a first flange, an extension tube and a through-plug; the two ends of the extension tube are respectively connected to the first flange and the through-plug; the through-plug comprises a connecting portion and a sliding portion, the connecting portion is arranged around the outside of the extension tube, the connecting portion is connected to the extension tube, and the sliding portion extends from the connecting portion to a direction away from the extension tube;

[0007] A sleeve seat, the interior of the sleeve seat is connected with the interior of the telescopic seat to form a accommodating chamber; the sleeve seat includes a second flange, an outer tube and a joint head; the two ends of the outer tube are respectively connected to the second flange and the joint head, the joint head is arranged around the outer side of the sliding part, and the joint head is movably connected to the sliding part; an embedding groove is arranged on the side of the joint head facing the sliding part; and

[0008] A sealing strip is clamped between the penetration plug and the engagement head, and the sealing strip is embedded in the embedding groove.

[0009] In one of the embodiments, a fitting surface is provided at one end of the sliding portion close to the connecting portion, and the fitting surface is inclined and gradually contracts along the connecting portion toward the sliding portion.

[0010] In one embodiment, the sliding portion is in the shape of a circular tube, and the inclination angle between the fitting surface and the central axis of the sliding portion is sixty degrees.

[0011] In one embodiment, the sealing strip is in the shape of a ring, and the cross section of the sealing strip is circular.

[0012] In one embodiment, the coupling head includes a base portion, a hook portion and a lift portion; the base portion is arranged in a circular ring shape around the outer side of the sliding portion, the outer tube is connected to the base portion, and the hook portion and the lift portion are both connected to the base portion.

[0013] In one embodiment, the hook portion is disposed at an end of the base portion close to the first flange, and the hook portion extends from the base portion toward the sliding portion.

[0014] In one embodiment, the lifting portion is annular and protrudes from the base portion toward the sliding portion, and the embedding groove is formed between the lifting portion and the hooking portion.

[0015] In one of the embodiments, the joint head further comprises a mounting groove; the mounting groove is arranged on a side of the lifting portion away from the hooking portion, and the outer tube is correspondingly inserted into the mounting groove.

[0016] In one embodiment, the first flange and the second flange are in the form of annular plate structures, the first flange is arranged around the outside of the extension tube, the second flange is arranged around the outside of the outer tube, and the extension plane where the first flange is located is parallel to the extension plane where the second flange is located.

[0017] In one embodiment, the extension tube and the peripheral tube are both in the shape of round straight tubes, the peripheral tube is arranged around the outside of the extension tube, and the central axes of the extension tube and the peripheral tube are colinear.

[0018] Compared with the prior art, the above protective cover has the following beneficial effects:

[0019] A accommodating cavity is formed by connecting the telescopic seat and the sleeve seat, and the transmission shaft can be inserted into the accommodating cavity to achieve full-angle protection of the transmission shaft. At the same time, the joint head and the sliding part are movably connected to ensure that the relative position between the telescopic seat and the sleeve seat is adjustable to meet the use requirements of different sizes and improve the adaptability of use.

[0020] By arranging a sealing strip between the through-plug and the joint head, air sealing and water sealing are ensured at the movable connection position, so as to meet more use environment requirements of the transmission shaft and further improve the use adaptability of the protective cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a cross-sectional schematic diagram of a protective cover according to one embodiment of the utility model;

[0022] Figure 2 for Figure 1 An enlarged schematic diagram of the middle circle A portion;

[0023] Figure 3 for Figure 1 A schematic cross-sectional view of a center-through plug;

[0024] Figure 4 for Figure 1 Schematic cross-sectional view of the joint.

[0025] The meanings of the numbers in the accompanying drawings are:

[0026] 100. Protective cover;

[0027] 10. telescopic seat; 11. first flange; 12. extension pipe; 13. plug; 131. connecting part; 132. sliding part; 135. fitting surface;

[0028] 20, socket seat; 21, second flange; 22, peripheral tube; 23, joint head; 231, base portion; 232, hook portion; 233, lifting portion; 235, embedding groove; 236, installation groove;

[0029] 30. Sealing strip;

[0030] 50. Accommodation cavity. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0036] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0037] See also Figures 1 to 4 , is a protective cover 100 of an embodiment of the utility model, comprising a telescopic seat 10, a sleeve seat 20 and a sealing strip 30. The telescopic seat 10 comprises a first flange 11, an extension tube 12 and a through-plug 13. The two ends of the extension tube 12 are respectively connected to the first flange 11 and the through-plug 13, and the first flange 11 is used to connect with the external cabin board to fix the telescopic seat 10 on the cabin board. The through-plug 13 comprises a connecting portion 131 and a sliding portion 132; the connecting portion 131 is arranged around the outside of the extension tube 12, the connecting portion 131 is connected to the extension tube 12, and the sliding portion 132 extends from the connecting portion 131 to the direction away from the extension tube 12. The interior of the sleeve seat 20 is connected with the interior of the telescopic seat 10 to form a receiving chamber 50, and the receiving chamber 50 is used to protect the components penetrated inside, such as a transmission shaft. The sleeve seat 20 includes a second flange 21, an outer tube 22 and a joint head 23; the second flange 21 is used to connect with the outer cabin board to fix the sleeve seat 20 on the cabin board. The two ends of the outer tube 22 are respectively connected to the second flange 21 and the joint head 23, the joint head 23 is arranged around the outer side of the sliding part 132, the joint head 23 is movably connected with the sliding part 132, and the joint head 23 and the sliding part 132 move relative to each other to adjust the relative distance between the telescopic seat 10 and the sleeve seat 20. The joint head 23 is provided with an embedding groove 235, and the embedding groove 235 is arranged on the side of the joint head 23 facing the sliding part 132. The sealing strip 30 is clamped and arranged between the through plug 13 and the joint head 23, and the sealing strip 30 is embedded in the embedding groove 235.

[0038] Further, the first flange 11 is in a circular plate-like structure, the first flange 11 is connected and fixed to the external cabin plate, and the first flange 11 is arranged around the outside of the extension tube 12. The extension tube 12 is in a circular straight tube shape, one end of the extension tube 12 is connected to the first flange 11, and the other end of the extension tube 12 extends toward the socket 20. The through-plug 13 is arranged at one end of the extension tube 12 away from the first flange 11. In this embodiment, the central axis of the extension tube 12 is perpendicular to the extension plane where the first flange 11 is located.

[0039] Further, the connecting portion 131 is in the shape of a circular tube, and is disposed around the outer side of the extension tube 12, and the connecting portion 131 is connected to the extension tube 12. The sliding portion 132 is in the shape of a circular tube, and the tube wall thickness of the sliding portion 132 is greater than the tube wall thickness of the connecting portion 131. The central axis of the sliding portion 132 is colinear with the central axis of the connecting portion 131, and the outer curved surface of the sliding portion 132 is flush with the outer curved surface of the connecting portion 131, so as to ensure that the end of the sliding portion 132 abuts against the end of the extension tube 12. In this embodiment, a fitting surface 135 is provided at one end of the sliding portion 132 close to the connecting portion 131. The fitting surface 135 is arranged to gradually shrink along the connecting portion 131 toward the sliding portion 132, and the fitting surface 135 is arranged to be inclined, so that the end of the extension tube 12 is subjected to an inwardly contracting tension force during the insertion process, and the end of the extension tube 12 is closely fitted with the fitting surface 135, thereby ensuring the sealing performance at the joint position of the extension tube 12 and the insertion plug 13. Preferably, the inclination angle between the fitting surface 135 and the central axis of the sliding portion 132 is sixty degrees.

[0040] Furthermore, the second flange 21 is in a circular plate structure, and the second flange 21 is connected and fixed to the outer cabin plate, and then the protective cover 100 is fixed between the cabin plates on both sides through the first flange 11 and the second flange 21. The second flange 21 is arranged around the outside of the outer tube 22, and the outer tube 22 is in a round straight tube shape. One end of the outer tube 22 is connected to the second flange 21, and the other end of the outer tube 22 extends to the telescopic seat 10. The outer tube 22 is arranged around the outside of the extension tube 12, and the outer tube 22 is connected to the inside of the extension tube 12. The outer tube 22 and the extension tube 12 are surrounded to form a receiving chamber 50 to protect the transmission shaft passing between the cabin plates on both sides. In this embodiment, the extension plane where the first flange 11 is located is parallel to the extension plane where the second flange 21 is located, and the central axis of the extension tube 12 and the outer tube 22 are colinear.

[0041] Further, the joint head 23 is arranged at one end of the outer tube 22 close to the telescopic seat 10, and the joint head 23 is arranged corresponding to the plug 13. In this embodiment, the joint head 23 includes a base portion 231, a hook portion 232 and a top portion 233. The base portion 231 is arranged in an annular shape around the outer side of the sliding portion 132, the outer tube 22 is connected to the base portion 231, and the hook portion 232 and the top portion 233 are both connected to the base portion 231. The hook portion 232 is arranged at one end of the base portion 231 close to the first flange 11, the hook portion 232 is annular, and the hook portion 232 extends from the base portion 231 to the direction close to the sliding portion 132. The top portion 233 is annular, and the top portion 233 is annular and protrudes from the base portion 231 to the direction of the sliding portion 132, and an embedding groove 235 is formed between the top portion 233 and the hook portion 232. Furthermore, the joint head 23 further includes a mounting groove 236 . The mounting groove 236 is disposed on a side of the lifting portion 233 away from the hooking portion 232 , and the peripheral tube 22 is correspondingly inserted into the mounting groove 236 .

[0042] Furthermore, the sealing strip 30 is annular, and is embedded in the embedding groove 235. The inner side of the sealing strip 30 abuts against the sliding portion 132, and the outer side of the sealing strip 30 abuts against the base portion 231, so as to seal the joint position between the through-plug 13 and the joint head 23. In this embodiment, the cross section of the sealing strip 30 is circular, so as to ensure that the sealing strip 30 moves laterally during the movement of the joint head 23 relative to the through-plug 13, reduce the deformation effect of the friction force on the sealing strip 30, and ensure the tightness of the sealing strip 30, the through-plug 13 and the joint head 23.

[0043] In summary, the embodiment of the utility model provides a protective cover 100, which has the following beneficial effects:

[0044] The telescopic seat 10 and the sleeve seat 20 are connected to form a accommodating cavity 50, and the transmission shaft can be inserted into the accommodating cavity 50 to achieve full-angle protection of the transmission shaft. At the same time, the joint head 23 and the sliding part 132 are movably connected to ensure that the relative position between the telescopic seat 10 and the sleeve seat 20 is adjustable to meet the use requirements of different sizes and improve the adaptability of use.

[0045] By providing a sealing strip 30 between the penetration plug 13 and the joint head 23 , it is ensured that the movable connection position is air-sealed and water-sealed, so as to meet more use environment requirements of the transmission shaft and further improve the use adaptability of the protective cover 100 .

[0046] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A protective cover, characterized in that: include: A telescopic seat, the telescopic seat comprising a first flange, an extension tube and a through-plug; the two ends of the extension tube are respectively connected to the first flange and the through-plug; the through-plug comprises a connecting portion and a sliding portion, the connecting portion is arranged around the outside of the extension tube, the connecting portion is connected to the extension tube, and the sliding portion extends from the connecting portion to a direction away from the extension tube; A sleeve seat, the interior of the sleeve seat is connected with the interior of the telescopic seat to form a containing cavity; the sleeve seat includes a second flange, a peripheral tube and a joint head; the two ends of the peripheral tube are respectively connected to the second flange and the joint head, the joint head is arranged around the outside of the sliding part, and the joint head is movably connected to the sliding part; the joint head is provided with an embedding groove, and the embedding groove is provided on the side of the joint head facing the sliding part; and A sealing strip is clamped between the penetration plug and the engagement head, and the sealing strip is embedded in the embedding groove.

2. The protective cover according to claim 1, characterized in that: A fitting surface is arranged at one end of the sliding portion close to the connecting portion, and the fitting surface is arranged to be gradually contracted and inclined in a direction from the connecting portion to the sliding portion.

3. The protective cover according to claim 2, characterized in that: The sliding part is in a circular tube shape, and the inclination angle between the fitting surface and the central axis of the sliding part is sixty degrees.

4. The protective cover according to claim 1, characterized in that: The sealing strip is in the shape of a ring, and the cross section of the sealing strip is in the shape of a circle.

5. The protective cover according to claim 1, characterized in that: The joint head includes a base part, a hook part and a lifting part; the base part is annularly arranged around the outer side of the sliding part, the outer tube is connected to the base part, and the hook part and the lifting part are both connected to the base part.

6. The protective cover according to claim 5, characterized in that: The hooking portion is disposed at one end of the base portion close to the first flange, and the hooking portion is extended from the base portion toward a direction close to the sliding portion.

7. The protective cover according to claim 6, characterized in that: The jacking portion is annular and protrudes from the base portion toward the sliding portion, and the embedding groove is formed between the jacking portion and the hooking portion.

8. The protective cover according to claim 7, characterized in that: The joint head further comprises a mounting groove; the mounting groove is arranged on a side of the jacking portion away from the hooking portion, and the peripheral tube is correspondingly inserted into the mounting groove.

9. The protective cover according to claim 1, characterized in that: The first flange and the second flange are annular plate structures. The first flange is arranged around the outside of the extension tube, and the second flange is arranged around the outside of the outer tube. The extension plane where the first flange is located is parallel to the extension plane where the second flange is located.

10. The protective cover according to claim 9, characterized in that: The extension tube and the peripheral tube are both in the shape of round straight tubes. The peripheral tube is arranged around the outside of the extension tube. The central axes of the extension tube and the peripheral tube are colinear.

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