A waterproof structure and a cable having the same

Abstract

The utility model relates to cable and its component technical field, concretely relates to a waterproof structure and the cable with the structure of having, include: upper casing and with the lower casing of cooperation of upper casing, the upper casing and lower casing are formed together and enclose the chamber for accommodating cable, connecting structure is used for with the upper casing and lower casing can dismantle lock tightly, sealing element sets up at the junction interface of upper casing and lower casing, the utility model discloses through the detachable connecting structure with upper, lower casing lock tightly, cooperate the sealing element of compression junction interface place to realize sealing, utilize the positioning structure in chamber to restrain cable, limit its radial movement simultaneously, solved the problem that traditional cable sheath waterproof is poor, internal cable is easy to shift and wear, realized modular assembly, and the waterproof reliability is high, and it is convenient to carry out the upgrade protection to existing cable, effectively prolonged the service life of cable.

Description

Technical Field

[0001] This utility model relates to the field of cable and its components, and in particular to a waterproof structure and a cable having the structure. Background Technology

[0002] Cables are widely used in power transmission and signal control. They are often laid in harsh environments such as dampness, dust, or open air, so they have high requirements for waterproof performance. In the existing technology, waterproofing is usually achieved by adding a protective shell or injection molding sealant to the outside of the cable. For example, the cable is wrapped with a shell structure with a sealing ring, or the interface is potted. These methods can block water intrusion to a certain extent and ensure the basic operational safety of the cable.

[0003] However, such conventional waterproof structures still have obvious defects: on the one hand, most protective shells lack effective cable positioning structures inside, and the cables are in a loose state inside the shell. When subjected to external vibration, pulling or pressure, they are prone to displacement, and long-term friction may damage the insulation layer; on the other hand, the shell connection relies on simple fastening or bolt fixing, and the sealing of the joint surface is insufficient. After deformation or aging, gaps are prone to appear, leading to liquid seepage. In addition, although the sealant encapsulation method can fill the gaps, disassembly and maintenance are difficult, which is not conducive to reuse. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a waterproof structure and a cable having the structure, so as to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, this utility model provides a waterproof structure, comprising: An upper housing and a lower housing that mates with the upper housing, the upper housing and the lower housing together forming a cavity for accommodating the cable; A connecting structure for detachably locking the upper housing and the lower housing; A sealing element is disposed at the joint interface between the upper housing and the lower housing. When locked by the connecting structure, the upper housing and the lower housing compress the sealing element to deform it and seal the joint interface. A positioning structure is provided in the cavity to fix the cable and limit its radial movement.

[0006] As a preferred embodiment of the present invention, the lower housing includes a bottom plate and side plates disposed on both sides of the bottom plate and extending upward in a vertical direction, and the upper housing includes a top plate and side walls disposed on both sides of the top plate and extending downward in a vertical direction.

[0007] As a preferred embodiment of the present invention, the connecting structure includes a protrusion disposed on the side wall end face of the top plate, and the protrusion engages with a groove formed on the end face of the side plate.

[0008] As a preferred technical solution of this utility model, a locking block is provided in the groove, and the locking block can cooperate with the slot opened on the side of the protrusion. When the protrusion is inserted into the groove, the locking block is locked into the slot to prevent the protrusion from leaving the groove.

[0009] As a preferred embodiment of this invention, the sealing element is a waterproof rubber strip disposed on the end face of the side wall.

[0010] As a preferred embodiment of this utility model, the positioning structure includes two positioning parts respectively disposed on opposite sides of the upper and lower housings. Each positioning part includes a positioning plate having an arc-shaped surface adapted to the cross-sectional profile of the cable. Connecting plates are provided at both ends of the positioning plate, and the connecting plates and positioning plates form a V-shaped structure. The positioning plate is installed at corresponding positions of the upper and lower housings through the connecting plates. There is a gap between the positioning plate and the top or bottom plate to form a pressure-resistant buffer space.

[0011] As a preferred technical solution of this utility model, the sidewall includes an arc-shaped transition edge and an arc-shaped transition edge. When the top plate is subjected to external force, it is recessed inward to buffer the pressure, and the recess distance is less than the height of the pressure-resistant buffer space.

[0012] As a preferred embodiment of this utility model, a vertically extending support bar is provided on the connecting plate where the lower housing is located. A clamping plate is connected to the end of the support bar away from the lower housing, and the length of the support bar exceeds the radius height of the cable.

[0013] A waterproof cable includes a cable, the exterior of which is provided with any of the aforementioned waterproof structures.

[0014] The beneficial effects of this utility model are as follows: This utility model locks the upper and lower shells through a detachable connection structure and achieves a seal by using a sealing element at the compression joint interface. At the same time, it uses a positioning structure inside the cavity to constrain the cable and limit its radial movement. This solves the problems of poor waterproof performance of traditional cable sheaths and easy displacement and wear of internal cables. It realizes modular assembly, has high waterproof reliability, facilitates the upgrading and protection of existing cables, and effectively extends the service life of cables. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the main structure of this utility model; Figure 3 This is a three-dimensional structural diagram of the disassembled state of this utility model; Figure 4 This is a three-dimensional structural diagram of the bottom of the top plate of this utility model.

[0017] The markings in the diagram are as follows: 1. Base plate; 2. Positioning hole; 3. Top plate; 4. Side plate; 5. Arched transition edge; 6. Arc-shaped transition edge; 7. Waterproof strip; 8. Protrusion; 9. Groove; 10. Locking block; 11. Locking slot; 12. Positioning plate; 13. Connecting plate; 14. Groove; 15. Support strip; 16. Clamping plate; 17. Cable. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0019] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0020] like Figure 1 and Figure 2 As shown, a waterproof structure includes: an upper shell and a lower shell that cooperates with the upper shell, the upper shell and the lower shell together forming a cavity for accommodating a cable 17; a connecting structure for detachably locking the upper shell and the lower shell; a sealing element disposed at the joint interface of the upper shell and the lower shell, which, when locked by the connecting structure, is compressed by the upper shell and the lower shell to deform and seal the joint interface; and a positioning structure disposed in the cavity for fixing the cable 17 to limit its radial movement. The above-mentioned technical solution solves the problems of traditional cables 17 relying on a single material for waterproof sheathing and being prone to displacement and wear after compression. The working principle of this waterproof structure is to tightly lock the upper and lower shells together through a detachable connection structure, compressing the seal at the interface to cause elastic deformation that fills and seals all assembly gaps. Simultaneously, a positioning structure within the cavity constrains the cable 17 from all sides, limiting its radial movement. During operation, the cable 17 is first placed in the lower shell's cavity, the upper shell is closed, and then the connection structure is operated until fully locked. At this point, the seal is uniformly compressed. This modular assembly provides high waterproof reliability, facilitates upgrades to existing cables 17, and effectively extends the cable 17's service life.

[0021] like Figure 2 As shown, in this embodiment, the lower housing includes a bottom plate 1 and side plates 4 disposed on both sides of the bottom plate 1 and extending upward in the vertical direction, and the upper housing includes a top plate 3 and side walls disposed on both sides of the top plate 3 and extending downward in the vertical direction. The above technical solution can solve the problem of irregularly shaped shells being difficult to process and seal. The top plate 3 and side wall of the upper shell, and the bottom plate 1 and side plate 4 of the lower shell together form an approximately rectangular protective cavity. Its working principle is to use the vertical side wall and side plate 4 to form a large-area planar joint interface, which provides a solid foundation for the arrangement and compression of the sealing element. The operation steps are basically the same as those mentioned above. During installation, it is only necessary to align and fit the side wall of the upper shell and the side plate 4 of the lower shell. The structure is simple, easy to injection mold, has low manufacturing cost, and the joint surface is flat, which makes it easy to ensure the sealing effect.

[0022] like Figure 2 and Figure 3 As shown, in this embodiment, the connection structure includes a protrusion 8, which is provided on the side wall end face of the top plate 3, and the protrusion 8 is engaged with the groove 9 opened on the end face of the side plate 4. The above technical solution can achieve the technical effects of quick and convenient assembly, no tools required, and a more aesthetically pleasing, concealed connection structure. Its working principle is to achieve the initial connection and fixation of the shell by mechanically interlocking the protrusion 8 on the side wall end face of the top plate 3 with the groove 9 on the end face of the side plate 4. During operation, the upper shell is pressed vertically down so that the protrusion 8 is accurately inserted into the corresponding groove 9 to complete the initial assembly. This design solves the problems of complex connection structure and the need for additional tools.

[0023] like Figure 3 and Figure 4 As shown, in this embodiment, a locking block 10 is provided in the groove 9. The locking block 10 can cooperate with the locking groove 11 opened on the side of the protrusion 8. When the protrusion 8 is inserted into the groove 9, the locking block 10 is locked into the locking groove 11 to prevent the protrusion 8 from leaving the groove 9. The above technical solution can solve the problem that simple plug-in structures may accidentally come loose due to vibration or external force. Its working principle is to use the elastic engagement of the locking block 10 in the groove 9 and the locking groove 11 on the protrusion 8 to form a one-way locking mechanism. When the protrusion 8 is inserted into the groove 9 to the predetermined position, the locking block 10 automatically locks into the locking groove 11 under the action of elasticity, thereby preventing the protrusion 8 from coming out in the opposite direction. During operation, a "click" sound is heard after the plug-in is completed, which indicates that the locking is successful. The connection is more reliable, has strong vibration resistance, and the locking state has tactile or audible feedback for easy confirmation.

[0024] like Figure 3 , Figure 4 As shown, in this embodiment, the sealing element is a waterproof adhesive strip 7 disposed on the end face of the side wall; The above technical solution can solve the problem of liquid water easily seeping into the cavity from the joint. Its working principle is to use the elasticity and compressibility of the waterproof strip 7 itself. When the upper shell and the lower shell are locked, the side wall end face squeezes the waterproof strip 7, causing it to deform and fit tightly on the entire joint interface, blocking the water penetration path. During operation, it is necessary to ensure that the waterproof strip 7 is flatly embedded in the preset groove or attached to a clean surface. It has excellent sealing performance, good weather resistance, can adapt to a certain degree of shell deformation, and has a long service life.

[0025] like Figure 2 and Figure 3 As shown, in this embodiment, the positioning structure includes two positioning parts respectively disposed on opposite sides of the upper and lower housings. The positioning part includes a positioning plate 12, which has an arc-shaped surface adapted to the cross-sectional profile of the cable 17. Connecting plates 13 are provided at both ends of the positioning plate 12. The connecting plates 13 and the positioning plate 12 form a V-shaped structure. The positioning plate 12 is installed at the corresponding positions of the upper and lower housings through the connecting plates 13. There is a gap between the positioning plate 12 and the top plate 3 or the bottom plate 1 to form a pressure-resistant buffer space. A positioning hole 2 is provided at the edge of the bottom plate 1 for installing this waterproof structure on the wall surface or the ground. The above-mentioned technical solution can solve the problem of direct pressure transmission to the cable 17 when it shakes and rubs inside the housing and is subjected to external impact. Its working principle is that the V-shaped structure provides stable support, and two opposing arc-shaped surfaces hug the cable 17 from the top and bottom sides, fixing it precisely in the center of the chamber. At the same time, the gap between the positioning plate 12 and the top plate 3 or bottom plate 1 forms a pressure-resistant buffer space. During operation, the cable 17 is inserted into the positioning part of the lower housing, and after the cover is closed, the positioning part of the upper housing is locked in place. It has the following dual technical effects: first, it effectively disperses external pressure and protects the insulation layer of the cable 17; second, it allows the housing to deform within a certain range without excessively squeezing the cable 17, which significantly improves the overall impact resistance and pressure resistance.

[0026] like Figure 2As shown, in this embodiment, the sidewall includes an arc-shaped transition edge 5 and an arc-shaped transition edge 6. When the top plate 3 is subjected to external force, it is recessed inward to buffer the pressure. The recess distance is less than the height of the pressure-resistant buffer space. The above technical solution can solve the problems of easy deformation and damage of the flat top plate 3 and poor buffering effect. Its working principle is that the arc-shaped top plate 3 and the arc-shaped transition edge 5 and arc-shaped transition edge 6 of its side wall together form a highly efficient pressure buffer structure. When the top plate 3 is impacted by external force, its arc-shaped structure will preferentially indent inward, dispersing the concentrated point impact force into a surface load until it contacts the pressure-resistant buffer space at the top of the positioning structure. No additional steps are required during operation. This function is automatically realized. It has high compressive strength, good resilience, and can effectively absorb and disperse external impact energy, thereby greatly protecting the internal cable 17.

[0027] like Figure 2 As shown, in this embodiment, a vertically extending support bar 15 is provided on the connecting plate 13 where the lower housing is located. A clamping plate 16 is connected to one end of the support bar 15 away from the lower housing. The length of the support bar 15 exceeds the radius height of the cable 17. The above technical solution can solve the problem that vibration or the weight of the cable 17 may cause it to loosen in the cavity. Its working principle is that the support bar 15 provides vertical support height, so that the clamping plate 16 can apply a clamping force from the upper side of the cable 17, which works in conjunction with the positioning plate 12 below. The surface of the positioning plate 12 is provided with grooves 14, thus forming a concave-convex structure, which can increase the friction coefficient with the cable 17, play a certain degree of anti-slip effect, and further limit the displacement of the cable 17 in the vertical and horizontal directions. During operation, the cable 17 is "placed" on the lower positioning plate 12 and naturally "rests" on the clamping plate 16. The fixing effect is more comprehensive and the shock resistance and anti-loosening ability are stronger, which is especially suitable for dynamic environments.

[0028] like Figure 1 As shown, in this embodiment, a waterproof cable includes a cable 17, and the cable 17 is provided with any of the above-mentioned waterproof structures on its exterior. The above technical solution can solve the problem that ordinary cables 17 are easily damaged in harsh environments such as humid, dusty or susceptible to mechanical impact. Its working principle is to use any of the above waterproof structures as external protective components and fit them on the outside of the cable 17. Through its comprehensive sealing, fixing and buffering mechanism, it provides comprehensive protection for the cable 17. It has a high degree of integration, is ready to use immediately after installation, and can significantly expand the technical effect of the cable 17 in terms of applicable fields and working conditions.

[0029] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0030] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A waterproof structure, characterized in that, include: An upper housing and a lower housing that cooperate with the upper housing, the upper housing and the lower housing together enclosing a cavity for accommodating the cable (17); A connecting structure for detachably locking the upper housing and the lower housing; A sealing element is disposed at the joint interface between the upper housing and the lower housing. When locked by the connecting structure, the upper housing and the lower housing compress the sealing element to deform it and seal the joint interface. A positioning structure is provided in the cavity to fix the cable (17) to limit its radial movement.

2. The waterproof structure according to claim 1, characterized in that, The lower housing includes a bottom plate (1) and side plates (4) arranged on both sides of the bottom plate (1) and extending upward in the vertical direction. The upper housing includes a top plate (3) and side walls arranged on both sides of the top plate (3) and extending downward in the vertical direction.

3. The waterproof structure according to claim 2, characterized in that, The connection structure includes a protrusion (8) located on the side wall end face of the top plate (3), and the protrusion (8) is engaged with a groove (9) opened on the end face of the side plate (4).

4. The waterproof structure according to claim 3, characterized in that, A locking block (10) is provided in the groove (9). The locking block (10) can cooperate with the slot (11) opened on the side of the protrusion (8). When the protrusion (8) is inserted into the groove (9), the locking block (10) is locked into the slot (11) to prevent the protrusion (8) from leaving the groove (9).

5. The waterproof structure according to claim 4, characterized in that, The sealing element is a waterproof rubber strip (7) installed on the end face of the side wall.

6. The waterproof structure according to claim 5, characterized in that, The positioning structure includes two positioning parts respectively disposed on opposite sides of the upper and lower housings. The positioning part includes a positioning plate (12) having an arc-shaped surface adapted to the cross-sectional profile of the cable (17). Connecting plates (13) are provided at both ends of the positioning plate (12). The connecting plate (13) and the positioning plate (12) form a V-shaped structure. The positioning plate (12) is installed at corresponding positions of the upper and lower housings through the connecting plate (13). There is a gap between the positioning plate (12) and the top plate (3) or the bottom plate (1) to form a pressure-resistant buffer space.

7. The waterproof structure according to claim 6, characterized in that, The top plate (3) is an arc-shaped plate, and the side wall includes an arc-shaped transition edge (5) and an arc-shaped transition edge (6). When the top plate (3) is subjected to external force, it is recessed inward to buffer the pressure. The recess distance is less than the height of the pressure-resistant buffer space.

8. The waterproof structure according to claim 7, characterized in that, A vertically extending support bar (15) is provided on the connecting plate (13) where the lower housing is located. A clamping plate (16) is connected to one end of the support bar (15) away from the lower housing. The length of the support bar (15) exceeds the radius height of the cable (17).

9. A waterproof cable, comprising a cable (17), characterized in that, The cable (17) is provided with a waterproof structure as described in any one of claims 1-8 on its exterior.

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