CN210126497U - Cable sealing plug - Google Patents

Abstract

The utility model provides a cable sealing plug, include: a base; a plurality of wire-passing hole pipes arranged on the base, wherein the hole diameters of the plurality of wire-passing hole pipes are not completely the same; the tail plugs are matched with the wire passing hole pipes, the upper ends of the tail plugs are arranged in the corresponding wire passing hole pipes and are detachably connected with the inner walls of the wire passing hole pipes, and the lower ends of the tail plugs extend out of the wire passing hole pipes; and the tail plug is disconnected with the corresponding wire passing hole pipe when being subjected to pulling-out operation. The utility model discloses cable sealing plug only needs a pair injection mold, can obtain a plurality of not unidimensional line holes of crossing to can select to launch the line hole of crossing that corresponds according to the designing requirement of difference, the product suitability is high, greatly reduced manufacturing cost.

Description

Cable sealing plug

Technical Field

The utility model relates to a cable sealing field especially relates to a cable sealing plug.

Background

The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.

Electronic equipment such as a turn light, a floor lamp and a camera can be integrated in the current exterior rearview mirror, so that the multifunctional exterior rearview mirror is realized. However, with the increase of functions, the number of internal components of the exterior mirror is increased, the structure is more complex, signal transmission and equipment power supply need to be led out from the exterior mirror through cables and connected into a vehicle body, and the more complex circuit layout is a great technical difficulty in the design of the multifunctional exterior mirror. Meanwhile, in order to ensure the working performance of a plurality of electronic devices, the waterproof sealing requirement of the novel multifunctional exterior rearview mirror is greatly improved compared with the prior art.

The current common cable fixing sealing plug is installed at the bottom of a mirror shell of the exterior rearview mirror, and the aperture of the wire passing hole is reasonably designed, so that the wire harness fixing sealing plug can play a role in fixing the wire harness and also play a sealing role.

However, due to the diversification of the requirements of the customers, manufacturers of automobile parts need to design products with different specifications according to different customers, such as a common rearview mirror, a rearview mirror with a floor lamp, a rearview mirror with a camera and a floor lamp, and a rearview mirror with a camera, a floor lamp and a turn light. Due to the different additional functions of the exterior rear view mirror, the number of cables will also be different and the size of the sealing plug required will also be different. Therefore, it is necessary to manufacture injection molds of different sizes, which results in an increase in production cost.

It should be noted that the above background description is only for the sake of clarity and complete description of the technical solutions of the present invention, and is set forth for facilitating understanding of those skilled in the art. These solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the present invention.

SUMMERY OF THE UTILITY MODEL

Based on the prior art defect, the embodiment of the utility model provides a cable sealing plug, but the above-mentioned problem of solution of preferred.

In order to achieve the above object, the present invention provides the following technical solutions.

A cable sealing plug comprising:

a base;

a plurality of wire-passing hole pipes arranged on the base, wherein the hole diameters of the plurality of wire-passing hole pipes are not completely the same;

the tail plugs are matched with the wire passing hole pipes, one ends of the tail plugs are arranged in the corresponding wire passing hole pipes and are detachably connected with the inner walls of the wire passing hole pipes, and the other ends of the tail plugs extend out of the wire passing hole pipes; and the tail plug is disconnected with the corresponding wire passing hole pipe when being subjected to pulling-out operation.

Preferably, the base is a hollow structure with one open end, and the plurality of wire through hole pipes are communicated with the inner cavity of the base.

Preferably, a plurality of the wire through hole pipes are integrally formed with the base, and the tail plugs are integrally formed with the corresponding wire through hole pipes.

Preferably, the inner wall of the wire passing hole pipe is provided with a peripheral bulge, and the peripheral bulge has elasticity.

Preferably, the ends of the circumferential projection are formed with a plurality of elastic ribs at intervals.

Preferably, the inner wall of the wire through hole pipe is provided with a plurality of elastic limiting sheets.

Preferably, the bore diameter of the through-hole tube is gradually reduced in a direction away from the base.

Preferably, the connection part of the wire through hole pipe and the tail plug is a fracture position; under the condition that the radial sizes of the wire passing hole pipes are the same, when the tail plug is separated from the wire passing hole pipes, the hole diameters of the broken positions tend to be consistent.

Preferably, the inner wall of the end part of the wire passing hole pipe, which is far away from the base part, is thinned to form an interference prevention part, and the interference prevention part is spaced from the outer wall of the tail plug.

Preferably, the tail plug extends in a direction away from the base, and the cross-sectional area of the tail plug gradually decreases in the direction away from the base.

Borrow by above technical scheme, the beneficial effects of the utility model reside in that:

the utility model discloses cable sealing plug only needs a pair injection mold, can obtain a plurality of not unidimensional line holes of crossing to can select to launch the line hole of crossing that corresponds according to the designing requirement of difference, the product suitability is high, greatly reduced manufacturing cost.

Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, which specify the manner in which the principles of the invention may be employed. It should be understood that the embodiments of the present invention are not so limited in scope.

Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments, in combination with or instead of the features of the other embodiments.

It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps or components.

Drawings

The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, the proportional sizes, and the like of the respective members in the drawings are merely schematic for helping the understanding of the present invention, and do not specifically limit the shapes, the proportional sizes, and the like of the respective members of the present invention. The skilled person in the art can, under the teaching of the present invention, choose various possible shapes and proportional dimensions to implement the invention according to the specific situation. In the drawings:

fig. 1 is a side view of a cable sealing plug according to an embodiment of the present invention;

FIG. 2 is a bottom view of the cable sealing plug shown in FIG. 1;

FIG. 3 is a schematic cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is an enlarged partial schematic view of the circled portion of FIG. 3;

fig. 5 is a schematic view of the assembly between the cable sealing plug and the exterior mirror according to the embodiment of the present invention.

Detailed Description

In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "up," "down," and the like as used herein are for illustrative purposes only and do not denote a single embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the following description, the descriptions of "upper", "lower", etc. appearing herein with respect to the orientation are for convenience of description, and are not limited to the actual orientation used. Specifically, an upward direction illustrated in fig. 1, 3 to 4 is defined as "up", and a downward direction illustrated in fig. 1, 3 to 4 is defined as "down".

It is worth noting that the present specification defines directions, which is only for convenience of describing the technical solution of the present invention, and does not limit the direction of the cable sealing plug in other scenes that may cause the cable sealing plug to be inverted or changed in position, including but not limited to use, test, transportation, and manufacture.

It should be noted that, in applying to the outside rear-view mirror of car, it is only the utility model discloses the feasible applicable scene of cable sealing plug of embodiment. Within the scope that can be expected, the technical scheme extension of this utility model discloses embodiment can be used in other arbitrary suitable application field that needs the sealed pencil to the technical scheme extension, and this is not restricted to the utility model discloses embodiment. That is, the cable sealing plug of the embodiment of the present invention is not limited to be applied only to the cable sealing in the exterior mirror. In other scenes and structures that need to seal up the cable, also can use the utility model discloses cable sealing plug of embodiment.

The following is that the cable sealing plug of the embodiment of the present invention is applied to the cable sealing in the exterior mirror of the automobile as a main description scene to explain. However, as can be seen from the above description, the scope of the embodiments of the present invention is not limited thereto.

As shown in fig. 5, in an exemplary application scenario, the cable sealing plug 100 according to an embodiment of the present invention may be applied to an exterior rear view mirror 200 of an automobile. Wherein the exterior rear view mirror 200 comprises a mounting base including a mirror foot housing 201 for mounting the entire exterior rear view mirror 200 to the vehicle door, and a support base (not shown) integrally provided on the mirror foot housing 201 and for carrying the mirror housing. A holder 202 (which may be, for example, an aluminum holder) and a filling foam 203 are provided in the temple base housing 201. Furthermore, the temple socket housing 201 is open at the end facing away from the support base, which opening is covered with an end cap in a detachable manner, in order to enclose the filling foam piece 203 in the temple socket housing 201 and to provide a certain compacting action for the filling foam piece 203, so that the support 202 is compressed.

The exterior rear view mirror 200 may further include other necessary components in order to achieve the basic function of the exterior rear view mirror 200. For example, it may also include a support shaft, a spring, a lens, etc. It should be noted that any suitable conventional configuration may be used for the other necessary components included in the exterior mirror 200. In order to clearly and briefly explain the technical solutions provided by the present invention, the above parts will not be described again, and the drawings in the specification are also simplified correspondingly. It will nevertheless be understood that no limitation of the scope of the invention is thereby intended.

Wherein, the bracket 202 is provided with a mounting hole for the cable sealing plug 100 to be disposed. When the cable sealing plug 100 provided by the embodiment of the present invention is applied to other application fields requiring wire harness sealing, the related structure of the application field is also provided with holes identical or similar to the above mounting holes, so as to facilitate the installation of the cable sealing plug 100. The structure provided with the mounting hole may be collectively named a member to be sealed.

As shown in fig. 1 to 4, the cable sealing plug 100 includes a base 101 for disposing the entire cable sealing plug 100 in the mounting hole of the member to be sealed. The base 101 may be substantially in the shape of a square block, which is a hollow structure having an internal cavity 101 a. Also, the internal cavity 101a of the base 101 is open toward one end (the opening is upward as illustrated in fig. 1 and 3). The base 101 corresponds to a housing having one open end. The base 101 is provided with a plurality of wire through hole pipes 102 communicating with the inner cavity 101a of the base 101, and the plurality of wire through hole pipes 102 are disposed opposite to the opening of the base 101. That is, a plurality of wire through hole pipes 102 are provided on the side wall of the base 101 opposite to the opening thereof.

The wire through hole tube 102 is used for the cable to pass through and sealing the cable passing through. Specifically, the aperture of the wire-passing hole pipe 102 is gradually reduced in a direction away from the base 101, i.e., in a direction from top to bottom as illustrated in fig. 1 and 3. The taper may be linear, so that the inner wall of the through-hole tube 102 is inclined, and the inner hole thereof is in a truncated cone shape with a larger end and a smaller end or in a funnel shape. The inclination angle of the inner pore canal of the wire through pore canal 102 can be set within the range of 4-8 degrees, further within the range of 4.5-7 degrees, and further within the range of 5-6.5 degrees.

Therefore, through the structural design, the wire passing hole pipe 102 always has an inner wall part with the aperture equal to or slightly smaller than the outer diameter of the cable, so that the inner wall of the wire passing hole pipe 102 can be tightly attached to or tightly pressed against the outer wall of the cable, and the cable is sealed.

Further, the inner wall of the wire passing hole tube 102 may be provided with a peripheral protrusion 102a having elasticity. The peripheral protrusion 102a is circumferentially continuous and circular, and has a semicircular cross section with a radius of 0.5mm to 1.5mm, further 0.7mm to 1.3mm, and further 0.9mm to 1.1 mm. I.e. the height of the peripheral projection 102a may be 0.5mm-1.5 mm. Thus, the radial dimension of the through-hole tube 102 at the position corresponding to the peripheral projection 102a can be reduced by 1mm to 3 mm.

Therefore, the diameter of the peripheral bulge 102a is smaller than the radial dimension of the wire through hole tube 102 at the corresponding position, and the outer wall of the cable can be pressed by the elasticity of the peripheral bulge, so that the sealing effect of the cable is improved.

In this embodiment, the peripheral protrusion 102a may be integrally formed with the wire through hole tube 102, and is formed by radially inwardly protruding inner walls of the wire through hole tube 102. Since the through-hole pipe 102 is made of a soft elastic material, the peripheral protrusion 102a integrally molded therewith also has elasticity.

Further, the ends of the peripheral projection 102a may be formed with a plurality of resilient ribs at intervals. The specific implementation manner may be that the peripheral protrusion 102a is provided with notches with V-shaped, trapezoidal, circular arc-shaped cross sections or other shapes at intervals, and an elastic rib is formed between adjacent notches.

By forming a plurality of resilient ribs in a spaced manner on the peripheral projection 102a, the gaps between adjacent resilient ribs provide deformation space for the resilient ribs. Thus, when the cable is inserted into the through hole tube 102, the elastic ribs deform to cling to the outer wall of the cable, thereby improving the sealing effect.

In addition, the peripheral bulge 102a compresses tightly the outer wall of the cable, so that the contact friction between the peripheral bulge 102a and the cable can be increased, the axial limiting and even fixing effects on the cable are achieved, the axial movement of the cable is limited, and the axial movement of the cable in the wire passing hole pipe 102 is avoided as much as possible.

In order to further enhance the axial restraining and securing effect on the cable, the inner wall of the wire passing hole tube 102 may be provided with a plurality of elastic restraining pieces 102b, and the plurality of elastic restraining pieces 102b extend toward the direction of the base 101, i.e., obliquely upward as illustrated in fig. 3.

The elastic limiting pieces 102b can also be integrally formed with the through hole tube 102, the elastic limiting pieces 102b are axially arranged at intervals, and the end parts of the elastic limiting pieces 102b positioned in the same circumferential direction are encircled to form a round hole. And the elastic limiting pieces 102b extend obliquely towards the direction of the base part 101, the round hole formed by enclosure can allow the cable to pass upwards, and the downward movement of the cable is restrained.

In this way, one end of the cable can pass through a circular hole formed by the end portions of the plurality of elastic restricting pieces 102b to enter the mirror housing of the exterior mirror for connection with functional members such as a floor lamp, a turn signal lamp, a camera, etc. accommodated in the mirror housing. The elastic restricting pieces 102b have elasticity for generating appropriate deformation when the cable passes therethrough, thereby ensuring smooth passage of the cable.

After the connection between the cable and the functional component is completed, the cable is not expected to move in the axial direction away from the base 101, so as to avoid the cable from pulling or dragging the functional component, which results in the disconnection between the cable and the functional component. And because the plurality of elastic limiting pieces 102b extend obliquely towards the direction of the base part 101 and are opposite to the direction of the base part 101, the cables can be effectively inhibited from moving towards the direction of the base part 101, namely, the cables can be inhibited from moving downwards as shown in fig. 3.

In the present embodiment, the elastic restricting pieces 102b in the same circumferential direction may be circumferentially continuous or circumferentially discontinuous.

In the present embodiment, the plurality of wire through hole tubes 102 and the base 101 may be integrally formed by injection molding. Most of the materials that can be subjected to injection molding process, such as Plastic Elastomer materials represented by TPE (Thermoplastic Elastomer), TRP (Thermoplastic-Rubber material), TPU (Thermoplastic Urethane Elastomer), etc., have better resilience and softness.

Therefore, the base 101 and the plurality of wire through hole tubes 102 integrally formed by injection molding also have better flexibility. Wherein, the gentle elasticity of basal portion 101 can make it keep bulging and sufficient state after setting up in the mounting hole of outside rear-view mirror, guarantees to form interference fit between basal portion 101 and the mounting hole, improves the leakproofness of basal portion 101 to the mounting hole, also can promote the utility model discloses cable sealing plug 100's fixed strength. And the flexibility of the through hole pipe 102 can enable the through hole pipe to have the radial expansion and contraction performance, so that the through cable can be tightly wrapped and clamped, and the sealing and fixing clamping effects on the cable are improved.

The through-hole tube 102 has radial expansion and contraction capabilities. Therefore, when the cable is inserted into the wire passing hole tube 102, the wire passing hole tube 102 may be elastically deformed to expand radially to cover the outer wall of the cable. Thus, the diameter of the cable that can be sealed and secured by the wire-passing bore tube 102 of a particular bore diameter is not unique, but rather a cable that can vary in diameter within a certain range.

For example, the embodiment illustrated in fig. 2 to 3 includes two through-hole pipes 102. One of the through-hole tubes 102 has a larger aperture, and the other through-hole tube 102 has a smaller aperture. The wire through hole pipe 102 with the larger hole diameter can seal and fix the cable with the diameter within the range of 2-5mm, and the wire through hole pipe 102 with the smaller hole diameter can seal and fix the cable with the diameter within the range of 5-7 mm.

The above is merely an illustrative example, and in actual operation, the diameter of the sealable cable passing through the wire hole tube 102 is not limited thereto, and may be expanded to other diameter ranges, which is not limited by the embodiment of the present invention.

In the embodiment of the present invention, the specific number of the plurality of wire passing hole pipes 102 is greater than or equal to two. Fig. 2 to 3 only schematically show two through-hole pipes 102. However, in practice, the number of the through-hole tubes 102 is not limited thereto. The number of the required wire through hole pipes 102 can be set according to actual requirements, which is not limited by the embodiment of the present invention.

To accommodate the sealing needs of a variety of different diameter cables, the bore sizes of the plurality of wire-passing bore tubes 102 are not all the same. The method specifically comprises the following steps: the pore sizes of the plurality of through-hole pipes 102 are different; alternatively, there may be some of the through-hole tubes 102 having the same pore size, but there may be other through-hole tubes 102 having different pore sizes.

The aperture sizes of the through-hole pipes 102 may be different from each other, the aperture sizes of the through-hole pipes 102 are respectively phi 1 and phi 2 … phi n, n is the number of the through-hole pipes 102, and phi 1 and phi 2 … phi n are different from each other. So, make the utility model discloses cable sealing plug 100 of the embodiment can be used to seal and fix the cable of multiple different diameters, extends cable sealing plug 100's application scope.

The hole diameters of some of the through hole pipes 102 are the same, but the hole diameters of other through hole pipes 102 are different from each other, and the hole diameters of the through hole pipes 102 are phi 1 and phi 2 … phi n, n is the number of the through hole pipes 102, m is equal to phi 1 and phi 2 … phi n, and m is less than n. Therefore, when some or some of the through-hole tubes 102 are damaged, the through-hole tubes 102 with the same aperture size and intact can be replaced, and the application flexibility of the cable sealing plug 100 is improved.

It should be noted that, since the inner hole of the through hole pipe 102 is tapered, the hole diameter is not a fixed value but is also variable. To facilitate the calibration and identification of the aperture of the different through-hole tubes 102, the lengths of the through-hole tubes 102 are the same (for example, 11mm to 17mm, further 12mm to 16mm, further 13mm to 15mm), and the inclination angles of the inner holes are the same. Thus, the upper end aperture or the lower end aperture of the through-hole pipe 102 may be adopted as the aperture of the through-hole pipe 102.

That is, the aperture sizes Φ 1, Φ 2 … Φ n of the plurality of through-hole pipes 102 appearing in the above-described embodiments may be the apertures of the through-hole pipes 102 close to the base 101 or the apertures far from the base 101.

As mentioned above, in an exemplary application scenario, the cable sealing plug 100 of the present invention may be used in an automobile exterior rear view mirror. When the number and/or kind of the functional members arranged in the exterior mirror are different, the number of cables for sealing and the diameter of the cables may also be different.

Therefore, in practical implementation, all of the plurality of wire through hole pipes 102 may not be required to be put into use, but some of the wire through hole pipes 102 are selectively used and other wire through hole pipes 102 are required to be plugged based on the type and number of cables to be sealed.

For example, when the functional member provided in the exterior rear view mirror includes only the turn signal, the diameter of the cable connected to the turn signal is Φ 11. At this time, only one through hole tube 102 with the aperture size matched with phi 11 is needed to be used in the through hole tubes 102, and other through hole tubes 102 are all plugged.

For another example, when the functional member provided in the exterior mirror includes a turn lamp and a camera, the diameters of cables connected to the turn lamp and the camera are Φ 11 and Φ 22, respectively. At this time, two through hole tubes 102 with the aperture sizes matched with phi 11 and phi 22 are used in the plurality of through hole tubes 102, and the other through hole tubes 102 are blocked.

Therefore, in order to meet the opening requirement of the selected wire passing hole pipe 102 which needs to be put into use and the plugging requirement of the wire passing hole pipe 102 which does not need to be put into use in practical use. The plurality of wire passing hole pipes 102 with different aperture sizes are correspondingly provided with the tail plugs 103 matched with the plurality of wire passing hole pipes, and the tail plugs 103 can be used for plugging the corresponding wire passing hole pipes 102 and can also be used for manually performing pulling-out operation. When the tail plug 103 is removed, the tail plug is disconnected from the corresponding wire passing hole pipe 102, so that the corresponding wire passing hole pipe 102 is opened for use.

One end (i.e., the upper end as illustrated in fig. 1 and 3) of the tail plug 103 is disposed in the corresponding through-hole pipe 102, and is detachably connected to the inner wall of the through-hole pipe 102. The other end (i.e. the lower end as illustrated in fig. 1 and 3) of the tail plug 103 extends out of the through-hole pipe 102 and extends in a direction away from the base 101, and may be in a shape of a conical rod, and the cross-sectional area of the tail plug 103 gradually decreases in a direction away from the base 101 (i.e. in a direction from top to bottom as illustrated in fig. 1 and 3), that is, the tail plug 103 is in a shape of a conical rod with one larger end and the other smaller end.

The inner hole of the through hole tube 102 is also in the shape of a truncated cone with one end being larger and the other end being smaller, that is, the end of the through hole tube 102 far from the base 101 is actually smaller in diameter. While the outer diameter of the end of the tail plug 103 near the base 101 is larger. Therefore, the inner bore of the through-bore tube 102 has a portion having the same diameter as the outer diameter of the end of the tail plug 103 at a position away from the end of the base 101, and the portion is a portion where the through-bore tube 102 and the tail plug 103 are connected.

Since the tail plug 103 is subjected to the pulling-out operation, the tail plug 103 is broken at this portion with the inner wall of the through-hole pipe 102. Therefore, this site can be named as a Break Point (Break Point), as shown in fig. 3 and 4.

The inclination angle of the inner hole of the through hole pipe 102 is consistent with that of the tail plug 103, so that when the tail plug 103 is connected with the inner wall of the through hole pipe 102 at the Break Point (Break Point), the two are not in line contact, but in surface contact. I.e. the Break Point has a certain thickness.

Consistent here is understood to mean that the difference between the inclination angle of the inner bore of the through-bore tube 102 and the inclination angle of the tail plug 103 is within a predetermined range [0, δ ]. Alternatively, when the difference between the tilt angles of the two is within the predetermined range [0, δ ], it can be considered that the tilt angles of the two are identical. The upper limit value δ of the predetermined range may vary according to different working scenarios, which is not limited by the embodiment of the present invention.

The thickness of the fracture position (Break Point) is the thickness dimension of the tail plug 103 in contact connection with the inner wall of the through hole tube 102, and the thickness dimension affects not only the difficulty of the tail plug 103 breaking from the inner wall of the through hole tube 102 when the pulling-out operation is performed, but also the connection strength of the tail plug 103 and the inner wall of the through hole tube 102.

Therefore, the thickness dimension should not be too small, otherwise the connection strength between the tail plug 103 and the inner wall of the wire passing hole pipe 102 is weak, and when the wire passing hole pipe 102 needs to be plugged by the tail plug 103 without being put into use, the connection strength between the tail plug 103 and the inner wall of the wire passing hole pipe 102 is insufficient, and the tail plug 103 falls off.

However, the thickness dimension is not too large, otherwise, the connection strength between the tail plug 103 and the inner wall of the wire passing hole pipe 102 is too large, and the tail plug 103 is not easily broken with the inner wall of the wire passing hole pipe 102 when the tail plug 103 is subsequently removed; alternatively, the tail plug 103 pulls the string hole pipe 102, tearing the string hole pipe 102.

In view of this, after balancing the two factors of the connection strength and the easiness of fracture, the thickness dimension of the tail plug 103 in contact connection with the inner wall of the through-hole pipe 102, that is, the thickness of the fracture site (Break Point), is preferably between 0.4mm and 1.2mm, further may be between 0.5mm and 1.1mm, and further may be between 0.6mm and 1.0 mm.

In the present embodiment, the removal operation performed on the tail plug 103 may specifically include shaking the tail plug 103 in a radial direction (lateral direction). Thus, the tail plug 103 can swing in the radial direction, and the tail plug 103 and the inner wall of the through-hole pipe 102 are cracked at the connection Point, i.e., the Break Point. With the increase of the shaking times and the increase of the amplitude, the crack occurring at the joint of the two propagates, and then the pulling-out operation can be executed on the crack, and the tail plug 103 is separated from the corresponding through hole pipe 102.

Since one end (i.e., the upper end as illustrated in fig. 1 and 3) of the tail plug 103 close to the base 101 is disposed in the via hole pipe 102, in order to avoid the other end (i.e., the lower end as illustrated in fig. 1 and 3) of the via hole pipe 102 far from the base 101 and the side wall from interfering with or blocking the swing of the tail plug 103, the inner wall of the other end of the via hole pipe 102 is thinned to form an interference prevention portion 102c, and the interference prevention portion 102c is spaced apart from the outer wall of the tail plug 103. Thus, the interference prevention portion 102c and the outer wall of the tail plug 103 form a relief space 102d, and the relief space 102d is used to provide a swing space for the tail plug 103 when the tail plug 103 is removed.

In the present embodiment, the height of the interference prevention portion 102c may be 0.5mm to 1.0mm, more preferably 0.6mm to 0.9mm, and still more preferably 0.7mm to 08 mm. The width of the avoiding space 102d (i.e. the difference between the wall thickness of the interference preventing part 102c and the wall thickness of the other part of the through-hole pipe 102) may be 0.5mm to 1.0mm, further 0.6mm to 0.9mm, and further 0.7mm to 08 mm.

By means of the above-mentioned integrated molding scheme of the tail plug 103 and the through hole pipe 102 through an injection molding manner, the thickness dimension design of the contact connection between the tail plug 103 and the inner wall of the through hole pipe 102, and the structural design of the interference prevention portion 102c, the breaking position (Break Point) and the breaking area (i.e. the aperture of the through hole pipe 102 corresponding to the breaking position) when the tail pipe is pulled out are kept at a certain value.

That is, in the case where the radial dimensions of the through-hole pipe 102 are the same, the hole diameter at the fracture site (Break Point) tends to be uniform after the tail plug 103 is detached from the through-hole pipe 102. Specifically, after the tail plug 103 and the inner wall of the through hole tube 102 are broken, the broken position (Break Point) and the inner wall of the through hole tube 102 are in smooth transition. Therefore, the phenomenon that the inner wall of the wire passing hole pipe 102 is uneven or abrupt greatly is avoided, and the sealing effect on the cable is ensured.

In the present embodiment, the tail plug 103 and the corresponding through-hole tube 102 can be integrally formed by injection molding. In this way, the base 101, the plurality of string hole pipes 102, and the tail plug 103 correspondingly matching the plurality of string hole pipes 102 are integrally manufactured. Thus, in practice, only one pair of injection molds is needed to realize the manufacture of the cable sealing plug 100 and the obtaining of the plurality of wire passing hole pipes 102 with different aperture sizes, thereby greatly reducing the production cost.

In addition, since the cable sealing plug 100 has a plurality of wire passing switches with different sizes, a user is allowed to select to activate the corresponding wire passing hole tube 102 according to different design requirements, and the product applicability is greatly improved.

Any numerical value recited herein includes all values from the lower value to the upper value that are incremented by one unit, provided that there is a separation of at least two units between any lower value and any higher value. For example, if it is stated that the number of a component or a value of a process variable (e.g., temperature, pressure, time, etc.) is from 1 to 90, preferably from 21 to 80, and more preferably from 30 to 70, it is intended that equivalents such as 15 to 85, 22 to 68, 43 to 51, 30 to 32 are also expressly enumerated in this specification. For values less than 1, one unit is suitably considered to be 0.0001, 0.001, 0.01, 0.1. These are only examples of what is intended to be explicitly recited, and all possible combinations of numerical values between the lowest value and the highest value that are explicitly recited in the specification in a similar manner are to be considered.

Unless otherwise indicated, all ranges include the endpoints and all numbers between the endpoints. The use of "about" or "approximately" with a range applies to both endpoints of the range. Thus, "about 20 to about 30" is intended to cover "about 20 to about 30", including at least the endpoints specified.

The above description is only for the embodiments of the present invention, and those skilled in the art can make various changes or modifications to the embodiments of the present invention without departing from the spirit and scope of the present invention according to the disclosure of the application document.

Claims (10)

1. A cable sealing plug comprising:

a base;

a plurality of wire-passing hole pipes arranged on the base, wherein the hole diameters of the plurality of wire-passing hole pipes are not completely the same;

the tail plugs are matched with the wire passing hole pipes, one ends of the tail plugs are arranged in the corresponding wire passing hole pipes and are detachably connected with the inner walls of the wire passing hole pipes, and the other ends of the tail plugs extend out of the wire passing hole pipes; and the tail plug is disconnected with the corresponding wire passing hole pipe when being subjected to pulling-out operation.

2. The cable sealing plug of claim 1 wherein the base is a hollow structure open at one end, and a plurality of the wire passage holes are in communication with the interior cavity of the base.

3. The cable sealing plug of claim 1 wherein a plurality of said wire via tubes are integrally formed with said base portion and said tail plug is integrally formed with a corresponding said wire via tube.

4. The cable sealing plug of claim 1 wherein the inner wall of the wire passage tube is provided with a circumferential projection, the circumferential projection being resilient.

5. The cable sealing plug of claim 4 wherein the ends of the circumferential projection are formed at spaced intervals with a plurality of resilient ribs.

6. The cable sealing plug of claim 1 wherein the inner wall of the conduit tube is provided with a plurality of resilient restraining tabs.

7. The cable sealing plug of claim 1 wherein the bore diameter of the wire through bore tube tapers in a direction away from the base.

8. The cable sealing plug of claim 1 or 7, wherein the connection part of the wire through hole tube and the tail plug is a breaking position; under the condition that the radial sizes of the wire passing hole pipes are the same, when the tail plug is separated from the wire passing hole pipes, the hole diameters of the broken positions tend to be consistent.

9. The cable sealing plug of claim 1 wherein the inner wall of the end of the tube distal from the base is thinned to form an interference prevention portion, the interference prevention portion being spaced from the outer wall of the tail plug.

10. The cable sealing plug of claim 1 wherein the tail plug extends in a direction away from the base and the cross-sectional area of the tail plug decreases in a direction away from the base.

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