Wiring protection device and wiring protection system

Abstract

The utility model discloses a wiring protection device and a wiring protection system. The wiring protection device comprises a base and protection covers used for being connected to the base, the protection covers are provided with through holes used for cables to penetrate through, the base is provided with M cable containing grooves used for containing the cables, M is a positive integer larger than or equal to 1, and the number of the protection covers is smaller than or equal to M; and the at least one cable accommodating groove is covered by the protective cover. The wiring protection device provided by the utility model plays a role in protecting joint parts of wires and cables. According to the wiring protection device, the M cable containing grooves used for containing the cables are formed in the base, and the protection cover can cover the cable containing grooves, so that a plurality of cables can penetrate through the wiring protection device according to actual application scenes, and different types of wire joints can be arranged in different cable containing grooves to achieve effective isolation.

Description

Technical Field

[0001] The utility model belongs to the technical field of wiring protection, and in particular relates to a wiring protection device and a wiring protection system. Background Art

[0002] In the industrial field, a large number of wiring will be used in the implementation of many projects. Generally, wiring protection tools are used to protect the wiring. Wiring protection tools are a kind of protective device used to protect the joints of wires and cables. Their main function is to prevent water, dust, corrosive substances, mechanical damage and other factors from damaging the wire joints, ensuring the safety of electrical lines and extending the service life of wires. They are widely used in industrial production, construction projects, home decoration and other fields. Existing wiring protection devices can only pass a limited number of cables and cannot isolate different types of wire joints. They have limited usage scenarios and low convenience. Summary of the invention

[0003] In view of the above technical problems, the utility model provides an improved wiring protection device and wiring protection system.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A wiring protection device comprises a base and a protective cover connected to the base, the protective cover being provided with a through hole for allowing cables to pass through, characterized in that the base is provided with M cable receiving grooves for accommodating cables, M is a positive integer greater than or equal to 1, and the number of the protective covers is less than or equal to M; at least one of the cable receiving grooves is covered by the protective cover.

[0006] Preferably, M is a positive integer greater than or equal to 2.

[0007] Preferably, the M cable receiving grooves are arranged along the first direction, the number of the protective covers is M, each of the protective covers covers one of the cable receiving grooves, and the protective cover has a use state and a non-use state. When the protective cover is in the use state, the protective cover covers the cable receiving groove, and when the protective cover is in the non-use state, the protective cover is detached from the base.

[0008] Furthermore, when the protective cover is in use, at least a portion of the lower end of the protective cover is located in any one of the cable receiving grooves, and the outer wall of the lower end of the protective cover is in close contact with the inner wall of the cable receiving groove.

[0009] Furthermore, a locking mechanism is provided between the protective cover and the base, and the locking mechanism includes a locking piece and a locking hole for cooperating with the locking piece. The locking piece is provided on one of the protective cover and the base, and the locking hole is provided on the other.

[0010] Furthermore, the first direction is the left-right direction, and each of the cable receiving grooves is provided with a buckling portion on opposite sides in the front-to-back direction, and the lock hole is arranged on the buckling portion; each of the protective cover is provided with a locking piece on the front-to-back sides; the buckling portion extends in the vertical direction, and the buckling portion is provided with an outwardly recessed groove, and the groove is the lock hole.

[0011] Furthermore, the locking piece is a locking plate, which includes a fixed part, a locking part and a movable part arranged from bottom to top, the lower end of the fixed part is fixedly connected to the protective cover, at least the locking part and the movable part are elastic, and there is a gap between the locking part, the movable part and the protective cover.

[0012] Furthermore, the width of the locking portion is smaller than the width of the locking hole and the widths of the fixed portion and the movable portion are larger than the width of the locking hole. When the protective cover is in use, the locking portion is located in the locking hole; the outer surface of the movable portion away from the protective cover is concave-convex.

[0013] Furthermore, the protective cover includes a main body, a hollow nut located on the main body, and a plug located inside the nut, the plug is provided with a plurality of through holes for cables to pass through; the upper end of the main body is provided with a threaded portion for cooperating with the nut, a serrated portion is also provided above the threaded portion, and the serrated portion is arranged around the plug.

[0014] Furthermore, the main body includes a lower shell and a connecting part for connecting the lower shell and the threaded part, and the lower end of the fixed part is fixedly connected to the lower shell; in a top view, the orthographic projection surfaces of the threaded part and the serrated part are located within the orthographic projection surface of the main body; a limit member is also provided on the lower shell and / or the connecting part; the protective cover also includes a sealing plug, and the sealing plug is configured to be arranged in the through hole when no cable passes through any of the through holes; a first sealing ring is provided on the outer wall of the lower end of the lower shell, and when the protective cover is in use, the first sealing ring is located between the outer wall of the lower shell and the inner wall of the cable receiving groove; a second sealing ring is also provided on the lower surface of the base.

[0015] A wiring protection system comprises N wiring protection devices as described above, where N is a positive integer greater than or equal to 2.

[0016] Preferably, the number of cable receiving grooves of any two of the N wiring protection devices is the same or different.

[0017] The utility model adopts the above solution, which has the following advantages compared with the prior art:

[0018] The wiring protection device in the utility model plays the role of protecting the joints of wires and cables. In a further preferred solution, by providing M cable grooves for accommodating cables on the base, the protective cover can cover the cable grooves, so that multiple cables can pass through the wiring protection device according to the actual application scenario, and different types of wire joints can be arranged in different cable grooves to achieve effective isolation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the base and the protective cover in the first embodiment of the utility model;

[0021] Figure 2 It is a top view of the base and the protective cover in the first embodiment of the utility model;

[0022] Figure 3 This is a three-dimensional exploded schematic diagram of the protective cover in the first embodiment of the utility model;

[0023] Figure 4 for Figure 3 A local enlarged schematic diagram of the middle A;

[0024] Figure 5 This is a bottom view of the base in the first embodiment of the utility model;

[0025] Figure 6 This is a schematic diagram of the three-dimensional structure of the base and the protective cover in the second embodiment of the utility model;

[0026] Figure 7 It is a side view of the base and the protective cover in the second embodiment of the utility model;

[0027] Among them, 1. base; 2. protective cover; 3. cable receiving groove; 41. lock hole; 42. locking piece; 421. fixing part; 422. locking part; 423. movable part; 43. buckling part; 51. main body; 511. threaded part; 512. serrated part; 513. lower shell; 514. connecting part; 52. nut; 53. plug; 531. through hole; 56. sealing plug; 61. first sealing ring; 62. second sealing ring; 7. limiter. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0029] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0030] In the description of the present utility model, Figure 2 As shown, the left direction in the figure is "front", the right direction in the figure is "back", the upper direction in the figure is "front", the lower direction in the figure is "back", the left direction in the figure is "left", the right direction in the figure is "right", and the directions perpendicular to the viewing angle in the figure are "up" and "down". The definitions of the above directions 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 cannot be understood as a limitation on the present invention.

[0031] Embodiment 1

[0032] like Figures 1 to 5 As shown, the wiring protection device in this embodiment can be used to protect the cables and wire connectors of a photovoltaic inverter or a photovoltaic module. The wiring protection device includes a base 1 and a protective cover 2 for connecting or snapping onto the base 1, and the protective cover 2 is provided with a through hole 531 for the cable to pass through. Among them, the base 1 is provided with M cable receiving grooves 3 for accommodating cables, M is a positive integer greater than or equal to 1, the number of protective covers 2 is less than or equal to M, and at least one cable receiving groove 3 is covered by the protective cover. In this embodiment, the number M is preferably greater than or equal to 2, so different types of wire connectors can be arranged in different cable receiving grooves to achieve effective isolation.

[0033] Specifically, M cable receiving grooves 3 are arranged along the first direction (i.e., the left-right direction), and the number of protective covers is also M, and each protective cover covers a corresponding cable receiving groove. The protective cover 2 has an in-use state and a non-use state. When the protective cover 2 is in the in-use state, the protective cover 2 covers the base 1, and at least part of the lower end of the protective cover 2 is located in any one of the cable receiving grooves 3, and the outer wall of the lower end of the protective cover 2 is in close contact with the inner wall of the cable receiving groove 3. When the protective cover 2 is not in the in-use state, the protective cover 2 and the base 1 are separated. Combination Figure 1and Figure 2 As shown in Figure 2 , the cable groove 3 is generally quadrilateral with rounded corners at the four corners. The lower edge of the protective cover 2 has the same shape as the cable groove 3 to ensure that the lower end of the protective cover 2 can be smoothly inserted into the cable groove 3. In some other embodiments, the shapes of the cable groove and the protective cover can also be adjusted according to actual needs, and specific details are not limited here.

[0034] A locking mechanism is also provided between the protective cover 2 and the base 1. The locking mechanism includes a locking member 42 and a locking hole 41 for cooperating with the locking member 42. One of the protective cover 2 and the base 1 is provided with the locking member 42, and the other is provided with the locking hole 41. Specifically, a fastening portion 43 is respectively provided on the opposite sides in the front-rear direction of each cable groove 3, and the locking hole 41 is provided on the fastening portion 43. A locking member 42 is respectively provided on the front and rear sides of each protective cover 2. The fastening portion 43 extends in the vertical direction, and a recessed groove is provided on each fastening portion, and the recessed groove is the locking hole 41. In this embodiment, the specific structure of the fastening portion 43 is not limited, as long as the locking hole 41 on the fastening portion can cooperate with the protective cover 2 to achieve locking. The inner and outer in this embodiment are described relative to the geometric center of the cable groove 3. The side close to the geometric center of the cable groove 3 is the inner side, and the side far from the geometric center of the cable groove 3 is the outer side. Arranging two locking mechanisms between each protective cover 2 and the base 1 can ensure that the protective cover 2 and the base 1 are more firmly fastened and prevent loosening.

[0035] As Figure 4 shown, the locking member is a locking piece, and the locking piece includes a fixing portion 421, a locking portion 422, and a movable portion 423 arranged from bottom to top. The lower end of the fixing portion 421 is fixedly connected to the protective cover 2. At least part of the locking portion 422 and the movable portion 423 are elastic, and there is a gap between the locking portion 422 and the movable portion 423 and the protective cover 2. Specifically, the width of the locking portion 422 is slightly smaller than the width of the locking hole 41, and the widths of the fixing portion 421 and the movable portion 423 are slightly larger than the width of the locking hole 41. When the protective cover 2 is in use, the locking portion 422 is located in the locking hole 41. The locking portion 422 is generally in an "I" shape and cooperates with the locking hole 41 to complete locking. The width of the movable portion 423 is set to be slightly larger than the width of the locking hole 41 to facilitate pressing for unlocking. Further, the outer surface of the movable portion 423 away from the protective cover 2 is concave-convex, and such a setting can increase the friction between the hand and the movable portion 423 when the operator operates, and can more conveniently achieve unlocking.

[0036] As Figure 3As shown, the protective cover 2 includes a main body 51, a hollow nut 52 located on the main body 51, and a plug 53 located in the nut 52. The plug 53 is provided with a plurality of through holes 531 for cables to pass through. A threaded portion 511 for cooperating with the nut is provided at the upper end of the main body 51, and a serrated portion 512 is also provided above the threaded portion 511, and the serrated portion 512 is arranged around the plug. Specifically, the plug 53 can be made of silicone material, and the serrated portion 512 is provided above the threaded portion 511, which can ensure that the serrated portion 512 can clamp the plug 53 during the rotation of the nut 52 to prevent it from loosening. In some other embodiments, other structures for cooperating with the plug 53 can also be provided above the spiral portion 511, which is not specifically limited here.

[0037] like Figure 3 As shown, the main body 51 includes a lower shell 513 and a connecting portion 514 for connecting the lower shell 513 and the threaded portion 511. The connecting portion 514 is inclined from bottom to top and from outside to inside. In a top view, the orthographic projection surface of the threaded portion 511 and the serrated portion 512 is located within the orthographic projection surface of the main body 51. This arrangement can prevent friction in the left and right directions when multiple protective covers 2 are arranged in parallel or the situation where multiple protective covers cannot be arranged in parallel can also be controlled. The size of the nut 52 does not need to be too large, saving production costs. The lower end of the fixing portion 421 is fixedly connected to the lower shell 513. The protective cover 2 also includes a sealing plug 56, which is configured to be arranged in any through hole 531 when no cable passes through the through hole 531, thereby effectively preventing dust and water vapor from affecting the wires and cable connectors in the protective cover 2.

[0038] The outer wall of the lower end of the lower shell 513 is provided with a first sealing ring 61. When the protective cover 2 is in use, the first sealing ring 61 is located between the outer wall of the lower shell 513 and the inner wall of the cable receiving groove 3. The lower surface of the base 1 is also provided with a second sealing ring 62. Figure 5 As shown, in this embodiment, the second sealing ring 62 is specifically located at the periphery of all the cable receiving grooves 3 on the base 1. Since the base 1 can also be installed on the housing or wall of other equipment, the provision of the second sealing ring can also effectively enhance the sealing performance.

[0039] The present embodiment also includes a wiring protection system, which includes N wiring protection devices as described above, which will not be described in detail here, wherein N is a positive integer greater than or equal to 2. Furthermore, the number of cable receiving slots of any two of the N wiring protection devices is the same or different. For example, the wiring protection system includes two wiring protection devices, wherein the first wiring protection device has three cable receiving slots, and the number of cable receiving slots of the second wiring protection device may be three, or may be two or four, which is not specifically limited here. The bases of the N wiring protection devices may be the same integrally formed base, or may be a plurality of bases that are detachably connected, for example, connected to each other by plugging or snapping.

[0040] Embodiment 2

[0041] The second embodiment is basically the same as the first embodiment, except that: Figure 6 and Figure 7 As shown, one of the lower shell 513 or the connecting portion 514, or both, is provided with a stopper 7. The stopper 7 is substantially level with the movable portion 423 or slightly lower than the movable portion 423. The stopper 7 can effectively prevent the movable portion 423 from being too close to the protective cover 2, causing the movable portion 423 to be excessively elastically deformed or broken, thereby effectively extending the service life of the protective component.

[0042] In summary, the wiring protection device in this embodiment has at least the following advantages:

[0043] The wiring protection device in the utility model plays the function of protecting the joints of wires and cables. By setting M cable grooves for accommodating cables on the base, the protective cover can cover the cable grooves. Therefore, multiple cables can pass through the wiring protection device according to actual application scenarios, and different types of wire joints can be set in different cable grooves to achieve effective isolation.

[0044] As shown in this specification and claims, the terms "comprises" and "include" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list, and the method or device may also include other steps or elements. The term "and / or" as used herein includes any combination of one or more of the relevant listed items.

[0045] It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. In addition, the descriptions of up, down, left, right, etc. used in the present invention are only relative to the relative positional relationship of the components of the present invention in the accompanying drawings.

[0046] The above embodiment is only for illustrating the technical concept and features of the utility model, and is a preferred embodiment. Its purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and it cannot be used to limit the protection scope of the utility model. Any equivalent transformation or modification made according to the principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A wiring protection device, comprising a base and a protective cover connected to the base, wherein the protective cover is provided with a through hole for a cable to pass through, characterized in that: The base is provided with M cable receiving grooves for accommodating cables, M is a positive integer greater than or equal to 1, and the number of the protective covers is less than or equal to M; at least one of the cable receiving grooves is covered by the protective cover.

2. The wiring protection device according to claim 1, characterized in that: M is a positive integer greater than or equal to 2.

3. The wiring protection device according to claim 1, characterized in that: The M cable receiving grooves are arranged along a first direction, the number of the protective covers is M, each of the protective covers covers a corresponding cable receiving groove, the protective cover has an in-use state and a non-use state, when the protective cover is in the in-use state, the protective cover covers the cable receiving groove, when the protective cover is in the non-use state, the protective cover is detached from the base.

4. The wiring protection device according to claim 3, characterized in that: When the protective cover is in use, at least a portion of the lower end of the protective cover is located in any one of the cable receiving grooves, and the outer wall of the lower end of the protective cover is in close contact with the inner wall of the cable receiving groove.

5. The wiring protection device according to claim 3, characterized in that: A locking mechanism is also provided between the protective cover and the base, and the locking mechanism includes a locking piece and a locking hole for cooperating with the locking piece. The locking piece is provided on one of the protective cover and the base, and the locking hole is provided on the other.

6. The wiring protection device according to claim 5, characterized in that: The first direction is the left-right direction, and each of the cable receiving grooves is provided with a buckling portion on opposite sides in the front-to-back direction, and the lock hole is arranged on the buckling portion; each of the protective cover is provided with a locking piece on the front-to-back sides; the buckling portion extends in the vertical direction, and the buckling portion is provided with a groove recessed outward, and the groove is the lock hole.

7. The wiring protection device according to claim 5, characterized in that: The locking piece is a locking plate, which includes a fixed part, a locking part and a movable part arranged from bottom to top, the lower end of the fixed part is fixedly connected to the protective cover, at least the locking part and the movable part are elastic, and there is a gap between the locking part, the movable part and the protective cover.

8. The wiring protection device according to claim 7, characterized in that: The width of the locking portion is smaller than the width of the locking hole, and the widths of the fixed portion and the movable portion are larger than the width of the locking hole. When the protective cover is in use, the locking portion is located in the locking hole; the outer surface of the movable portion away from the protective cover is concave-convex.

9. The wiring protection device according to claim 7, characterized in that: The protective cover includes a main body, a hollow nut on the main body and a plug inside the nut, wherein the plug is provided with a plurality of through holes for cables to pass through; a threaded portion for cooperating with the nut is provided at the upper end of the main body, a serrated portion is further provided above the threaded portion, and the serrated portion is arranged around the plug.

10. The wiring protection device according to claim 9, characterized in that: The main body includes a lower shell and a connecting portion for connecting the lower shell and the threaded portion, and the lower end of the fixing portion is fixedly connected to the lower shell; in a top view, the orthographic projection surfaces of the threaded portion and the serrated portion are located within the orthographic projection surface of the main body; The lower shell and / or the connecting portion are also provided with a limiting member; the protective cover further comprises a sealing plug, and the sealing plug is configured to be arranged in any of the through holes when no cable passes through the through hole; A first sealing ring is provided on the outer wall of the lower end of the lower shell. When the protective cover is in use, the first sealing ring is located between the outer wall of the lower shell and the inner wall of the cable receiving groove. A second sealing ring is also provided on the lower surface of the base.

11. A wiring protection system, characterized in that: The invention comprises N wiring protection devices according to any one of claims 1 to 10, wherein N is a positive integer greater than or equal to 2.

12. The wiring protection system according to claim 11, characterized in that: The number of cable receiving slots of any two of the N wiring protection devices is the same or different.

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