Orifice sealing device

Abstract

An orifice sealing device for sealing an orifice through which a wire harness passes when passing through a wall, comprising: a sleeve comprising a first half sleeve and a second half sleeve that are engageable and disengageable from each other, the first half sleeve and the second half sleeve being engaged to form a passage through which the wire harness passes, the sleeve comprises a convex ring part which extends outwards in the radial direction from the peripheral surface; the first half sleeve comprises a first joint part, the second half sleeve comprises a second joint part, the first joint part and the second joint part are in sealing sliding insertion fit in the axial direction, and the orifice sealing device further comprises a sealing ring arranged on the radial surface of the convex ring part of the sleeve; and a fastening portion which fastens the orifice sealing device to the wall portion. The orifice sealing device is easy to assemble and disassemble, convenient and fast to operate and high in reliability.

Description

Technical Field

[0001] The utility model relates to the field of wiring harness installation, in particular to an orifice sealing device. Background Art

[0002] Conventionally, in an aircraft, a wiring harness passes through a wall to connect various onboard devices or structures, so an orifice is often provided in the wall for the wiring harness to pass through. When the aircraft is working, if the orifice is not sealed tightly, the liquid may leak through the orifice to the other side of the wall, especially from the horizontal wall (such as the floor) to the bottom of the horizontal wall, causing damage to the equipment. Therefore, it is necessary to seal the orifice of the wall through which the wiring harness is passed. Common sealing means include using a through-wall seal, bonding a metal waterproof retaining ring, or installing a waterproof device. However, for a through-wall seal, when regularly maintaining the through-hole wiring harness, it takes a great deal of work to remove the sealant, and it is easy to damage the wiring harness when removing the sealant, which increases the difficulty and workload of wiring harness maintenance. For a metal waterproof retaining ring, in order to ensure sealing, the diameter of the metal waterproof retaining ring is usually consistent with the wiring harness, which means that its diameter is much smaller than the end connector of the wiring harness. Therefore, when installing and removing the metal waterproof retaining ring, it is necessary to terminate and disassemble the wiring harness end connector on board, which increases the workload. For waterproof devices, several fasteners are usually used to assemble the wire harness into a waterproof device, which requires opening multiple holes on the wall for installing these fasteners, and additionally, these holes are also waterproofly sealed, which undoubtedly increases the burden. Therefore, the existing conventional sealing means require complicated assembly and disassembly steps, which may cause damage to the wire harness, is inconvenient for wire harness maintenance, consumes a lot of energy and has low work efficiency.

[0003] Therefore, it is necessary to propose an improved port sealing device which can solve the problems and defects existing in the above-mentioned prior art. Utility Model Content

[0004] The utility model aims to provide an improved orifice sealing device, which can be quickly installed without adding additional fasteners and can be removed without damaging any accessories, and has convenient and fast operation and high reliability.

[0005] According to the utility model, a port sealing device is provided, which is used to seal the port through which the wire harness passes when passing through a wall, and includes: a sleeve, which includes a first half sleeve and a second half sleeve that can be engaged and disengaged from each other, and the first half sleeve and the second half sleeve are engaged to form a channel for the wire harness to pass through, wherein the sleeve includes a convex ring portion extending radially outward from the outer peripheral surface; the first half sleeve includes a first engaging portion, and the second half sleeve includes a second engaging portion, and the first engaging portion and the second engaging portion are preferably sealed and slidably matched in the axial direction, and the port sealing device also includes: a sealing ring, which is set to the radial surface of the convex ring portion of the sleeve; a fastening portion, which fastens the port sealing device to the wall. The port sealing device is sealed and fastened to the wall by means of the sealing ring and the fastening portion, and the radial gap between the port sealing device and the port is blocked; and the sealed and slidably matched first and second engaging portions ensure that the port sealing device itself is sealed, thereby preventing liquid from penetrating through the wall from between the first half sleeve and the second half sleeve. The arrangement of dividing the sleeve into two half sleeves makes it possible to assemble the orifice sealing device around the wire harness without disassembling the wire harness end connector, and then use the fastening portion of the orifice sealing device itself to seal and fasten the orifice sealing device to the wall without adding fasteners. Therefore, the orifice sealing device of the utility model can be installed conveniently and quickly. When the orifice sealing device is overflowed for maintenance or other purposes, the fastening portion can be removed and the first half sleeve and the second half sleeve can be separated. This process is also convenient and quick, and there is no risk of damaging the wire harness.

[0006] According to another aspect of the present disclosure, the first engaging portion includes a convex portion, and the second engaging portion includes a concave portion whose shape matches that of the convex portion, the convex portion includes a mating surface that abuts against the concave portion, and the mating surface includes an axial mating surface extending along the side wall of the sleeve and a radial mating surface extending along the convex ring portion of the sleeve. Specifically, the axial mating surface and the axial radial mating surface are continuous, wherein a sealing band is attached to the mating surface. In addition, the convex portion also includes a groove extending in the axial direction close to the channel, and the concave portion also includes a protrusion matching the groove. The convex portion with the groove and the concave portion with the protrusion cooperate with each other, so that the first engaging portion and the second engaging portion can only be engaged or separated by axial movement relative to each other, that is, a sliding fit is performed. Since the first half sleeve and the second half sleeve inevitably have a gap at the mating surface, a sealing band is provided at the mating surface to fill the gap, thereby achieving sealing of the orifice sealing device itself.

[0007] According to another aspect of the present disclosure, the convex ring portion has a first step portion and a second step portion, wherein the sealing ring is fixed to the radial surface of the first step portion adjacent to the second step portion, and wherein the outer diameter of the convex ring portion decreases in sequence along the direction from the first step portion to the second step portion. The convex ring portion is arranged in the middle of the sleeve, wherein the second step portion is closer to the fastening portion than the first step portion. In a preferred embodiment of the utility model, the radial mating surface extends to the radial surface of the first step portion of the convex ring portion. During installation, the convex ring portion of the orifice sealing device (especially the radial surface of the first step portion adjacent to the second step portion) abuts against the orifice of the wall portion, so the sealing ring is arranged here to effectively seal the gap between the wall portion and the orifice sealing device, thereby blocking the orifice and preventing liquid leakage. The sealing ring can be a separate piece, which is cushioned between the wall portion and the orifice sealing device to form a seal when the orifice sealing device is installed; it can also be divided into two half rings, which are respectively attached to the first half sleeve and the second half sleeve.

[0008] In a preferred embodiment of the utility model, the fastening portion includes at least two claws, which extend integrally from one end of the sleeve, wherein the free ends of the claws face the convex ring portion. When installing the orifice sealing device, the sleeve is pressed until the free ends of the claws pop out of the surface of the wall portion opposite to the surface abutting the convex ring portion and abut against the surface to fix the orifice sealing device in place. However, it is also conceivable in an alternative embodiment that the fastening portion includes a nut, wherein the outer peripheral surface of the lower end of the sleeve forms an external thread, and the nut is threadedly engaged with the external thread. When installing the orifice sealing device, the nut is screwed on the outer peripheral surface of the sleeve until the nut engages with the convex ring portion to clamp the wall portion.

[0009] According to another aspect of the present disclosure, an additional seal is also included, which seals the radial gap between the wiring harness and the sleeve. Specifically, the additional seal includes a waterproof tape. In this way, liquid can be prevented from penetrating the wall surface from the radial gap between the orifice sealing device and the wiring harness or via the channel.

[0010] When installing the orifice sealing device of the utility model, the first half sleeve and the second half sleeve are slid into place around the wiring harness, and then the assembled orifice sealing device is fixed to the wall with the help of fasteners (claws or nuts). Finally, an additional sealing member such as waterproof tape is optionally used to wrap around the wiring harness and the sleeve to seal the radial gap between the wiring harness and the sleeve.

[0011] When disassembling the aperture sealing device of the utility model, the claws are pressed inwardly or the nuts are loosened to remove the aperture sealing device from the wall portion, and then the first half sleeve and the second half sleeve are slid away from each other to remove the aperture sealing device from the wiring harness.

[0012] The orifice sealing device of the utility model uses two half sleeves that can be slidably matched in a sealing manner, so that the orifice sealing device can be installed without removing the harness end connector; a sealing strip and a sealing ring are used to effectively seal the orifice sealing device itself and the gap between it and the wall to prevent liquid leakage; and a fastening part that is easy to assemble and disassemble, such as a claw and a nut, is used to fasten the orifice sealing device to the wall without using additional fasteners or drilling additional holes. The installation and removal process of the orifice sealing device is convenient and quick, and will not cause adverse effects on the harness or other components of the aircraft, and has high practicality and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] For a more complete understanding of the present disclosure, reference may be made to the following description of exemplary embodiments considered in conjunction with the accompanying drawings. The accompanying drawings are not intended to limit the present disclosure to the specific embodiments depicted therein and are not necessarily to scale. In the drawings:

[0014] Figure 1 is a three-dimensional diagram of an orifice sealing device according to a preferred embodiment of the utility model;

[0015] Figure 2 yes Figure 1 A perspective view of a first half sleeve of an orifice sealing device;

[0016] Figure 3 yes Figure 1 A perspective view of a second half sleeve of the orifice sealing device;

[0017] Figure 4 Passing the wiring harness through the wall is shown;

[0018] Figure 5 Show that Figure 1 The orifice sealing device is engaged around the wire harness, wherein an enlarged partial view of the first sleeve half is also shown;

[0019] Figure 6 The engaged port seal is shown before being secured to the wall;

[0020] Figure 7 An engaged port seal is shown secured to a wall portion, and side and bottom views of the port seal are also shown; and

[0021] Figure 8 Shown with additional seal attached Figure 7 Orifice sealing device.

[0022] Reference numerals list

[0023] 100 Orifice sealing device

[0024] 1 Sleeve

[0025] 10 channels

[0026] 11 First half sleeve

[0027] 110 first joint

[0028] 111 convex part

[0029] 112 Grooves

[0030] 12 Second half sleeve

[0031] 120 second joint

[0032] 121 recess

[0033] 122 protrusion

[0034] 2 convex ring part

[0035] 21 First step

[0036] 211 Radial surface

[0037] 22 Second step

[0038] 31 Sealing ring

[0039] 32 Sealing tape

[0040] 4 Fastening part

[0041] 5 Mating surface

[0042] 51 Axial mating surface

[0043] 52 Radial mating surface

[0044] 6 Additional seals

[0045] 200 Wire Harness

[0046] 201 terminal connector

[0047] 300 Wall

[0048] 301 Orifice

[0049] X-axis direction

[0050] Y radial direction DETAILED DESCRIPTION

[0051] The following description of the present invention for specific embodiments refers to the accompanying drawings, which show specific embodiments in which the present invention can be practiced. The embodiments are intended to fully describe the various aspects of the present invention in detail so that those skilled in the art can implement the present invention. Other embodiments may be utilized and may be changed without departing from the scope of the present invention. Therefore, the following description of specific embodiments should not be considered restrictive. The scope of the present invention is limited only by the appended claims and the full range of equivalents covered by the claims. The same reference numerals are used in all drawings and specific embodiments to refer to the same or similar parts.

[0052] In this document, the terms "upper", "lower", "top", "bottom", "radial", "axial", "inner", "outer" and the like are relative to Figure 1 and Figures 6 to 8 The placement position of the port sealing device 100 in FIG. 1 (i.e., the working position installed in the aircraft) is the corresponding position of reference. Specifically, as Figure 1 As shown by the arrow in the middle, “radial” refers to the radial direction Y of the orifice sealing device 100 , and “axial” refers to the axial direction X of the orifice sealing device 100 .

[0053] Figure 1 The orifice sealing device 100 is shown as a whole, and Figure 2 and Figure 3 The first half sleeve 11 and the second half sleeve 12 of the port sealing device 100 are shown respectively. As shown in the figure, the port sealing device 100 generally includes a sleeve 1 formed by joining the first half sleeve 11 and the second half sleeve 12, a protruding ring portion 2 extending radially outward from the outer peripheral surface of the sleeve 1, and a fastening portion 4 provided at the end of the sleeve 1.

[0054] The sleeve 1 comprises a first sleeve half 11 and a second sleeve half 12, which are engaged and disengaged from each other by a sliding fit. Figure 1 The channel 10 is provided for the wire harness 200 to pass through.

[0055] like Figure 2 As shown, the first half sleeve 11 includes a first engaging portion 110, and the first engaging portion 110 includes a convex portion 111. In the present embodiment, the two convex portions 111 are symmetrically distributed on both sides of the first half sleeve 11 with respect to the axial direction X, and each convex portion 111 has a radial outer side facing the outside of the first half sleeve 11 and a radial inner side close to the channel 10, wherein a mating surface 5 is arranged on the radial outer side, and a groove 112 is arranged on the radial inner side.

[0056] The mating surface 5 is the surface of the protrusion 111 that abuts against the second half sleeve 12, and includes an axial mating surface 51 extending along the side wall of the sleeve 1 (especially the first half sleeve 11) and a radial mating surface 52 extending along the convex ring portion 2, wherein the axial mating surface 51 extends to the upper end of the first half sleeve 11, and the radial mating surface 52 extends to the first step portion 21 of the convex ring portion 2. The axial mating surface 51 and the radial mating surface 52 are continuous and smooth. Specifically, the contour curve of the mating surface 5 in the axial plane XY is similar to the outer contour curve of the portion of the sleeve 1 from the upper end of the first half sleeve 11 to the first step portion 21 of the convex ring portion 2 in the plane XY. In addition, a sealing tape 32 is attached to the mating surface 5 of each protrusion 111.

[0057] The groove 112 is located on the side of the protrusion 111 that is closer to the passage 10 than the mating surface 5 , that is, the groove 112 is adjacent to the inner surface of the first half sleeve 11 and extends along the axial direction X between the two ends of the first half sleeve 11 .

[0058] like Figure 3 As shown, corresponding to the first half sleeve 11, the second half sleeve 12 includes a second engagement portion 120 having two symmetrical recesses 121, the shape of each recess 121 matches the convex portion 111, and an abutting surface having a shape complementary to the mating surface 5 to abut against each other is formed on the radial outer side of the recess 121 near the outside of the second half sleeve 12, and a protrusion 122 matching the groove 112 is formed on the radial inner side near the channel. Specifically, the protrusion 122 is adjacent to the inner surface of the second half sleeve 12, extends between the two ends of the second half sleeve 12 and protrudes toward the outside of the second half sleeve 12, so that the protrusion 122 can be just inserted into the groove 112, and the cooperation between the two restricts the first engagement portion 110 and the second engagement portion 120 to only move relative to each other in the axial direction and slide fit, but cannot move relative to each other in the radial direction. When the first half-sleeve 11 and the second half-sleeve 12 are moved to be precisely aligned, the radial mating surface 52 of the mating surface 5 of the first engaging portion 110 and the abutting surface on the recess 121 of the second engaging portion 120 abut against each other, stopping the mutual movement between the two half-sleeves 11 and 12 and engaging the two in place.

[0059] Since the sealing tape 32 is attached to the mating surface 5, when the mating is in place, the sealing tape 32 is compressed and deformed, thereby tightly sealing the gap between the first half sleeve 11 and the second half sleeve 12, making the sleeve 1 a whole and preventing liquid from leaking from between the two half sleeves 11, 12.

[0060] like Figure 1 As shown, the sleeve 1 includes a convex ring portion 2 extending radially outward from the outer peripheral surface. Figure 2 and Figure 3As shown, the convex ring portion 2 includes two convex ring halves that are respectively integrated with the first half sleeve 11 and the second half sleeve 12. When the two sleeves 11 and 12 are engaged in place, the two convex ring halves abut against each other to form a complete convex ring portion 2. The convex ring portion 2 has a first step portion 21 and a second step portion 22 from top to bottom along the axial direction X, wherein the outer diameter of the convex ring portion 2 at the second step portion 22 is smaller than the outer diameter at the first step portion 21, that is, the outer diameter of the convex ring portion 2 decreases in sequence from the first step portion 21 to the second step portion 22.

[0061] Still Figure 1 As shown in FIG. 1 , a sealing ring 31 is provided at a radial surface 211 of the first step portion 21 adjacent to the second step portion 22. When the port sealing device 100 is fastened to the wall portion 300, as shown in FIG. Figure 7 As shown, the radial surface 211 of the first step portion 21 abuts against the upper surface of the wall portion 300, while the second step portion 22 is plugged in the orifice 301, and the outer peripheral surface of the second step portion 22 preferably abuts against the circumferential surface of the orifice 301 to prevent the orifice sealing device 100 from radially moving relative to the orifice 301. At this time, the sealing ring 31 is between the radial surface 211 of the convex ring portion 2 and the wall portion 300 and is compressed and deformed, thereby tightly sealing the gap between the convex ring portion 2 and the wall portion 300 to prevent liquid from leaking through the wall portion 300 from between the two. In this embodiment, the convex ring portion 2 is arranged in the middle of the sleeve 1, but it is also conceivable in an alternative embodiment that the convex ring portion 2 is arranged at the end of the sleeve 1 opposite to the fastener 4.

[0062] In the preferred embodiment of the present invention, the sealing ring 31 is two sealing half rings respectively attached to two convex ring halves formed on the first half sleeve 11 and the second half sleeve 12, and when the first half sleeve 11 and the second half sleeve 12 are joined, a complete sealing ring 31 is formed. However, it is also conceivable in an alternative embodiment that the sealing ring 31 is formed as a complete single ring, which is placed at the radial surface 211 of the first step 21 of the convex ring portion 2 when the orifice sealing device 100 is installed.

[0063] The sealing belt 32 and the sealing ring 31 can be made of flexible sealing materials such as rubber, asbestos or the like.

[0064] The port sealing device 100 further comprises a fastening portion 4 for fixing it to the wall portion 300. In a preferred embodiment of the present invention, Figure 1 and Figure 7As shown, the fastening portion 4 includes two claws, each of which is integrally formed with the end of the sleeve 1 at one end, and then extends upward and bends so that its free end faces the convex ring portion 2. Among them, the second step portion 22 of the convex ring portion 2 is closer to the fastening portion 4 (the claw in this embodiment) than the first step portion 21, so that the convex ring portion 2 and the fastening portion 4 cooperate to fasten the port sealing device 100 to the wall portion 300. Although two claws are provided in this embodiment, more than two claws can also be envisioned.

[0065] In an alternative embodiment, it is envisaged that the fastening portion 4 is provided as a nut (not shown) that cooperates with an external thread. The external thread is provided on the outer peripheral surface of the sleeve 1, preferably at the lower part, and the nut has an internal thread that matches the external thread. The outer diameter of the nut is larger than the inner diameter of the orifice 301 of the wall portion 300, so that the orifice sealing device 100 can be clamped to the wall portion 300 by screwing the nut on the sleeve 1 so that the nut cooperates with the convex ring portion 2. In addition, when using a nut thread fitting, since the clamping force between the nut and the convex ring portion 2 is large enough to prevent any movement of the orifice sealing device 100, the second step portion 22 for radial positioning can be omitted.

[0066] Additionally, when the orifice sealing device 100 is used in an airtight area, as Figure 8 As shown, an additional sealing member 6 such as a waterproof tape may be used to wrap around the wire harness 200 and the upper end of the sleeve 1 to seal the radial gap between the wire harness 200 and the sleeve 1 to prevent liquid or gas from leaking from the channel 10 .

[0067] Figures 4 to 7 The process of installing the orifice sealing device 100 is shown as follows:

[0068] -like Figure 4 As shown, the wire harness 200 with the end connector 201 is passed through the hole 301 of the wall 300;

[0069] -like Figure 5 As shown, the first half sleeve 11 and the second half sleeve 12 are slidably inserted into each other. When the radial mating surface 52 of the mating surface 5 of the first engaging portion 110 of the first half sleeve 11 and the corresponding surface of the second engaging portion 120 of the second half sleeve 12 abut against each other, as shown in FIG. Figure 6 As shown, the first half sleeve 11 and the second half sleeve 12 are precisely aligned and engaged in place;

[0070] -like Figure 7 As shown, the orifice sealing device 100 is axially limited by using the claw 4 and fastened to the wall 300. Figure 7 The upper left view of FIG. 1 shows a bottom view perspective view of the orifice sealing device 100 with the wall portion 300 removed. Figure 7The upper right view of FIG. 1 shows a bottom perspective view of the aperture sealing device 100 showing the wall portion 300 , Figure 7 The middle view shows a side view of the installed port sealing device 100, Figure 7 The bottom view of the 3D bottom view of the orifice sealing device 100 after installation shows a stereoscopic view, in which the free ends of the claws 4 respectively abut against the lower surface of the wall portion 300, and cooperate with the convex ring portion 2 to clamp the orifice sealing device 100 to the wall portion 300. When a threaded nut mating piece is used as the fastener 4, the nut and the convex ring portion 2 cooperate to clamp the orifice sealing device 100 to the wall portion 300;

[0071] - Optionally, Figure 8 As shown, an additional seal 6 (waterproof tape) is wound around the wire harness 200 and the upper end of the sleeve 1 of the orifice sealing device 100 to seal the radial gap between the wire harness 200 and the orifice sealing device 100 .

[0072] When the orifice sealing device 100 needs to be removed, the fastener 4 is loosened, and then the first half sleeve 11 and the second half sleeve 12 are slid out of engagement. In this example, the fastener 4 is loosened by pressing the free ends of each claw toward the sleeve 1 until the claw no longer abuts against the lower surface of the wall portion 300. In an alternative embodiment, the nut is unscrewed out of the sleeve 1.

[0073] According to the utility model, the orifice sealing device uses a sealing tape and a sealing ring to seal the gap between the orifice sealing device itself and the wall portion, without the need for glue filling and corner filling as in the prior art wall-penetrating sealing parts, thus solving the disadvantage of damaging the wiring harness during removal; two half sleeves are used to slide and fit together to assemble the orifice sealing device, without the need to install and remove the wiring harness end connector, thus solving the disadvantage of increased workload; the orifice sealing device is installed and removed with the help of fasteners that are easy to install and remove, without the need to install additional fasteners or punch holes on the wall portion, thus solving the disadvantage of cumbersome installation. In general, the orifice sealing device solves the defects of the prior art that complex assembly and removal steps are required, which may cause damage to the wiring harness, are inconvenient for wiring harness maintenance, and are labor-intensive and inefficient.

[0074] As used herein, the terms "comprises," "comprising," "having," or any further variations thereof, are intended to cover a non-exclusive inclusion. For example, a method, article, or apparatus that includes a list of elements is not necessarily limited to only those elements and may include other elements not expressly listed or inherent to such method, article, or apparatus.

[0075] The present invention is not limited to the above-mentioned embodiments, which are merely illustrative and non-restrictive. Under the guidance of the present invention, those skilled in the art can make any possible changes and modifications without departing from the purpose of the present invention and the scope of protection of the claims. Therefore, any modification, equivalent changes and modifications made to the above-mentioned embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the scope of protection defined by the claims of the present invention.

Claims

1. An orifice sealing device, the orifice sealing device is used to seal the orifice through which the wiring harness passes when passing through a wall, comprising: a sleeve, the sleeve comprising a first sleeve half and a second sleeve half which can be engaged with and disengaged from each other, the first sleeve half and the second sleeve half being engaged to form a passage for the wire harness to pass through, wherein the sleeve comprises a protruding ring portion extending radially outward from an outer peripheral surface; The invention is characterized in that the first half sleeve comprises a first engaging portion, the second half sleeve comprises a second engaging portion, the first engaging portion and the second engaging portion are sealed and slidably fitted in the axial direction, and the orifice sealing device further comprises: a sealing ring, the sealing ring being arranged on a radial surface of the convex ring portion of the sleeve; A fastening portion fastens the aperture sealing device to the wall portion.

2. The orifice sealing device according to claim 1, characterized in that: The first engaging portion includes a convex portion, and the second engaging portion includes a concave portion whose shape matches the convex portion, the convex portion includes a mating surface that abuts against the concave portion, and the mating surface includes an axial mating surface extending along the side wall of the sleeve and a radial mating surface extending along the convex ring portion of the sleeve.

3. The orifice sealing device according to claim 2, characterized in that: The axial mating surface and the radial mating surface are continuous, wherein a sealing band is attached to the mating surfaces.

4. The orifice sealing device according to claim 3, characterized in that: The convex portion further includes a groove extending in the axial direction close to the channel, and the concave portion further includes a protrusion matching the groove.

5. The orifice sealing device according to claim 1, characterized in that: The convex ring portion has a first step portion and a second step portion, wherein the seal ring is fixed to a radial surface of the first step portion adjacent to the second step portion, and wherein an outer diameter of the convex ring portion decreases sequentially in a direction from the first step portion to the second step portion.

6. The orifice sealing device according to claim 1, characterized in that: The fastening portion includes at least two claws, which are integrally extended from one end of the sleeve, wherein the free ends of the claws face the convex ring portion.

7. The orifice sealing device according to claim 1, characterized in that: The fastening portion includes a nut, wherein an outer peripheral surface of a lower end of the sleeve is formed with an external thread, and the nut is threadably engaged with the external thread.

8. The orifice sealing device according to any one of claims 1 to 7, characterized in that: An additional seal is also included, which seals a radial gap between the wiring harness and the sleeve.

9. The orifice sealing device according to claim 8, characterized in that: The additional sealing member comprises a waterproof tape.

10. The port sealing device according to claim 5, characterized in that: The convex ring portion is disposed at a middle portion of the sleeve, wherein the second step portion is closer to the fastening portion than the first step portion.

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