A waterproof disconnecting switch

Abstract

The utility model relates to the technical field of disconnecting switch, especially to a waterproof disconnecting switch, including upper cover and with the lower cover of upper cover buckle, still through bolt fixation between upper cover and lower cover, the inside of lower cover is equipped with at least one screw hole cavity and at least one fixed setting in screw hole cavity's screw hole seat, the edge of screw hole cavity and the edge of lower cover are located on the same horizontal plane, the sealing ring is clamped between upper cover and lower cover, the sealing ring extends to the circumference edge of screw hole cavity, the position of upper cover corresponds each screw hole cavity is equipped with one with screw hole seat coaxial mounting through -hole respectively, the one end of mounting through -hole is covered with waterproof cover away from screw hole seat, bolt along mounting through -hole and enter with screw hole seat thread cooperation, or bolt is in proper order with mounting through -hole and screw hole seat thread cooperation, the utility model discloses through with the circumference edge of screw hole cavity of sealing ring extension, form a continuous, closed waterproof line, still cover with waterproof cover, further improve waterproof performance.

Description

Technical Field

[0001] This utility model relates to the field of disconnector switch technology, and in particular to a waterproof disconnector switch. Background Technology

[0002] Patent CN203055760U discloses a four-connector enclosed disconnect switch, including a housing and a switch body. The switch body is set inside the housing. The housing includes an upper cover and a lower cover. When the upper cover and the lower cover are fastened together, the structure of the waterproof groove and the sealing ring is used to press and fasten them together and then fix them with bolts to form a housing that is completely sealed on the side. This solution effectively solves the problem of sealing the side of the housing.

[0003] However, further investigation revealed the following problems with the solution: the upper and lower covers need to be fitted with threaded holes for bolts to fix them. These threaded holes are usually located on the end face of the housing. The threaded hole section does not have a sealing structure, and water can enter the housing through the threaded holes and the gap between the upper and lower covers. The waterproof structure still needs further improvement. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings and deficiencies of the existing technology and provide a waterproof disconnect switch. This utility model extends the sealing ring to the periphery of the screw hole cavity to form a continuous and closed waterproof line, and is also covered with a waterproof cap to further improve the waterproof performance.

[0005] The technical solution adopted by this utility model is as follows: A waterproof disconnect switch includes an upper cover and a lower cover that is fastened to the upper cover. The upper cover and the lower cover are also fixed by bolts. The lower cover has at least one screw hole cavity and at least one screw hole seat fixedly disposed in the screw hole cavity. The edge of the screw hole cavity and the edge of the lower cover are located on the same horizontal plane. A sealing ring is sandwiched between the upper cover and the lower cover. The sealing ring extends to the periphery of the screw hole cavity. The upper cover has a mounting through hole coaxial with the screw hole seat at the position of each screw hole cavity. The end of the mounting through hole away from the screw hole seat is covered with a waterproof cover. The bolt extends into the mounting through hole and is threadedly engaged with the screw hole seat, or the bolt is threadedly engaged with the mounting through hole and the screw hole seat in sequence.

[0006] The edge of the upper cover is provided with a water-proof groove for the sealing ring to be embedded. The water-proof groove extends to the perimeter of the mounting through hole. The edge of the lower cover has a water-proof protrusion that extends into the water-proof groove to compress the sealing ring.

[0007] The mounting through hole is provided with a ring platform, the bolt includes a screw head and a screw rod, a washer is sandwiched between the screw head and the ring platform, and the screw rod passes through the ring platform and is threaded into the screw hole seat.

[0008] The waterproof cover includes a plug-in part and a cover body part. The plug-in part is plugged into the mounting through hole. The upper end face of the cover has an annular groove recessed at the position corresponding to the mounting through hole for the cover body part to be inserted. A quick-release opening is provided on one side edge of the annular groove. The inner bottom wall of the quick-release opening is a slope. The outer edge of the cover body part extends along the annular groove to the upper side of the slope. A gap is formed between the slope and the outer edge of the cover body part.

[0009] The inner wall of the mounting through hole near the quick-release port is provided with a slot, and the insertion part is provided with an elastic buckle that engages with the slot.

[0010] The two sides of the slot are respectively provided with an arc-shaped surface along the circumference of the mounting through hole. When the waterproof cover is rotated, the elastic buckle slides away from the slot along the arc-shaped surface.

[0011] The inner wall of the mounting through hole is provided with a conical protrusion on the side of the two arc surfaces away from the annular groove. There is a slot between the two sides of the elastic buckle and the insertion part. When the elastic buckle is engaged with the slot, the conical protrusion is embedded in the slot.

[0012] The cover body has a U-shaped groove on one side corresponding to the quick-release opening.

[0013] The beneficial effects of this utility model are as follows: By setting a screw hole cavity with its edge flush with the edge of the lower cover and fixing the screw hole seat in the screw hole cavity, and extending the sealing ring between the upper and lower covers to the periphery of the screw hole cavity, a continuous and closed waterproof line is formed, which fundamentally prevents water from entering the housing from the screw hole seat and the joint between the upper and lower covers. The outer end of the mounting through hole of the upper cover is sealed by a waterproof cover to prevent water from seeping in along the bolt installation path, forming a double sealing protection and further strengthening the seal. This solution completely solves the technical problem of poor sealing at the threaded hole in the existing structure, significantly improves the waterproof reliability, and has a compact structure and is easy to assemble. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of 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 some embodiments of this utility model. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of the present invention; Figure 3 This is a cross-sectional view of the present invention; Figure 4 for Figure 3 A magnified view of a portion of point A in the middle; Figure 5 for Figure 3 A magnified view of a portion of point B in the middle; Figure 6 This is a schematic diagram of the structure of the waterproof cover in this utility model; Figure 7 This is a cross-sectional view of the mounting through hole in this utility model; In the diagram, 1-upper cover, 2-lower cover, 3-screw hole cavity, 4-screw hole seat, 5-sealing ring, 6-installation through hole, 7-waterproof cover, 8-waterproof groove, 9-waterproof protrusion, 10-ring platform, 11-screw head, 12-screw rod, 13-washer, 14-insertion part, 15-cover part, 16-ring groove, 17-quick release port, 18-gap, 19-slot, 20-elastic buckle, 21-arc surface, 22-conical protrusion, 23-empty groove, 24-U-shaped groove. Detailed Implementation

[0016] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0017] It should be noted that all uses of "first" and "second" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.

[0018] The directional and positional terms used in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," "outer," "top," "bottom," and "side," are merely for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.

[0019] like Figures 1 to 7As shown, this is an embodiment of the present invention, a waterproof disconnect switch, including an upper cover 1 and a lower cover 2 that is fastened to the upper cover 1. The upper cover 1 and the lower cover 2 are also fixed together by bolts. The lower cover 2 has at least one screw hole cavity 3 and at least one screw hole seat 4 fixedly disposed in the screw hole cavity 3. The edge of the screw hole cavity 3 and the edge of the lower cover 2 are located on the same horizontal plane. A sealing ring 5 is sandwiched between the upper cover 1 and the lower cover 2. The sealing ring 5 extends to the periphery of the screw hole cavity 3. The upper cover 1 has a mounting through hole 6 coaxial with the screw hole seat 4 at the position of each screw hole cavity 3. The end of the mounting through hole 6 away from the screw hole seat 4 is covered with a waterproof cover 7. The bolt extends into the mounting through hole 6 and is threadedly engaged with the screw hole seat 4, or the bolt is threadedly engaged with the mounting through hole 6 and the screw hole seat 4 in sequence.

[0020] The beneficial effects of this design are as follows: by setting a screw hole cavity with its edge flush with the edge of the lower cover, and fixing the screw hole seat in the screw hole cavity, while extending the sealing ring between the upper and lower covers to the perimeter of the screw hole cavity, a continuous and closed waterproof line is formed. This fundamentally prevents water from entering the housing from the screw hole seat and the joint between the upper and lower covers. The outer end of the mounting through hole of the upper cover is sealed by a waterproof cap to prevent water from seeping in along the bolt installation path, forming a double sealing protection and further strengthening the seal. This solution completely solves the technical problem of poor sealing at the threaded hole in the existing structure, significantly improves waterproof reliability, and has a compact structure and is easy to assemble.

[0021] Further, the edge of the upper cover 1 is provided with a water-proof groove 8 for the sealing ring 5 to be embedded, the water-proof groove 8 extends to the periphery of the mounting through hole 6, and the edge of the lower cover 2 has a water-proof protrusion 9 that extends into the water-proof groove 8 to compress the sealing ring 5.

[0022] The beneficial effects of this design are as follows: by setting a water-proof groove extending to the perimeter of the mounting hole on the edge of the upper cover, and cooperating with the water-proof protrusion of the sealing ring extending into the water-proof groove on the edge of the lower cover, the sealing ring can be reliably pressed. The tighter the upper and lower covers are fastened, the better the sealing performance of the sealing ring. This further enhances the waterproof sealing performance of the fastening surfaces of the upper and lower covers and the bolt installation points. The water-proof groove can also be used for pre-positioning the sealing ring, which facilitates installation.

[0023] Further, the mounting through hole 6 is provided with an annular platform 10, the bolt includes a screw head 11 and a screw rod 12, a washer 13 is sandwiched between the screw head 11 and the annular platform 10, and the screw rod 12 passes through the annular platform 10 and is threadedly engaged with the screw hole seat 4.

[0024] The beneficial effects of this design are as follows: when the bolt is tightened, the washer is pressed against the end face of the ring, thereby forming an additional sealing barrier inside the mounting hole. The bolt head will not wear the ring. Even if the external waterproof cover fails unexpectedly, this structure can effectively prevent water from entering the housing through the gap between the bolt and the mounting hole. Together with the sealing ring and the waterproof cover, it forms a triple protection, significantly improving the waterproof reliability of the bolt connection path and extending its service life.

[0025] Further, the waterproof cover 7 includes a plug-in portion 14 and a cover body portion 15. The plug-in portion 14 is plugged into the mounting through hole 6. The end face of the upper cover 1 is recessed with an annular groove 16 for the cover body portion 15 to be inserted into the mounting through hole 6. A quick-release opening 17 is provided on one side edge of the annular groove 16. The inner bottom wall of the quick-release opening 17 is a slope. The outer edge of the cover body portion 15 extends along the annular groove 16 to the upper side of the slope. A gap 18 is formed between the slope and the outer edge of the cover body portion 15.

[0026] The advantages of this design are as follows: it forms a stable and reliable waterproof cover installation structure. At the same time, a quick-release port with a bevel is provided on one side of the annular groove, and the outer edge of the cover body extends to the upper part of the bevel to form a gap. This gap allows the waterproof cover to be pried up by hand when disassembly and maintenance are required, making removal very convenient. It also avoids damage to the surface of the cover or shell, thus meeting the dual requirements of reliable sealing and convenient maintenance.

[0027] Furthermore, the inner wall of the mounting through hole 6 near the quick-release port 17 is provided with a slot 19, and the insertion part 14 is provided with an elastic buckle 20 that engages with the slot 19.

[0028] The advantages of this design are as follows: it eliminates the need for additional fasteners or adhesives when assembling the waterproof cover, allowing for reliable axial positioning solely through snap-fit. This prevents the waterproof cover from loosening due to vibration or temperature changes, ensuring a long-term stable end-face sealing effect, while also simplifying the assembly process.

[0029] Furthermore, the two sides of the slot 19 are respectively provided with an arc-shaped surface 21 along the circumference of the mounting through hole 6. When the waterproof cover 7 is rotated, the elastic buckle 20 slides away from the slot 19 along the arc-shaped surface 21.

[0030] The beneficial effects of this design are as follows: when the waterproof cover is rotated, the elastic buckle can smoothly slide away from the slot along the arc surface, thereby achieving tool-free quick disassembly, which greatly facilitates the opening operation during inspection and maintenance, while not reducing the fixed reliability of the assembly state, and taking into account both the strong snap-fit ​​and the ease of disassembly.

[0031] Further, a conical protrusion 22 is provided on the side of the inner wall of the mounting through hole 6 corresponding to the two arc surfaces 21 away from the annular groove 16, and a slot 23 is provided between the two sides of the elastic buckle 20 and the insertion part 14. When the elastic buckle 20 is engaged with the slot 19, the conical protrusion 22 is embedded in the slot 23.

[0032] The beneficial effects of this design are as follows: When the elastic buckle engages with the slot, the conical protrusion on the inner wall of the mounting hole simultaneously embeds into the empty groove of the insertion part, forming a circumferential limit on the waterproof cover. This effectively prevents the waterproof cover from accidentally rotating and loosening under non-human-operated rotation, thus ensuring the long-term stability of the sealing structure. Simultaneously, during assembly, the conical protrusion guides the elastic buckle into the slot, improving assembly accuracy and balancing reliable fixation with ease of operation. As the elastic buckle slides away from the slot along the arc-shaped surface, its lower end surface contacts the conical protrusion, causing the elastic buckle to move obliquely, both circumferentially sliding away from the slot and rising. This results in the cover body moving away from the inner bottom wall of the annular groove, reaching a pre-removal state, further facilitating easy and effortless quick removal of the waterproof cover.

[0033] As a further feature, the cover portion 15 is provided with a U-shaped groove 24 on one side corresponding to the quick-release port 17.

[0034] The beneficial effects of this design are as follows: the U-shaped groove provides a clear and stable point of force for disassembly tools or manual disassembly; when rotating the waterproof cover, the tool can be placed in the groove to apply force, avoiding slippage and damage to the cover or shell surface; at the same time, the U-shaped groove corresponds to the direction of the quick-release port, which can serve as an installation direction indicator for installing the waterproof cover; when the plug is inserted axially into the installation through hole, the elastic buckle can slide into the slot to form a snap-fit.

[0035] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A waterproof disconnect switch, comprising an upper cover (1) and a lower cover (2) fastened to the upper cover (1), wherein the upper cover (1) and the lower cover (2) are further fixed together by bolts, characterized in that: The lower cover (2) has at least one screw hole cavity (3) and at least one screw hole seat (4) fixedly installed in the screw hole cavity (3). The edge of the screw hole cavity (3) and the edge of the lower cover (2) are on the same horizontal plane. A sealing ring (5) is sandwiched between the upper cover (1) and the lower cover (2). The sealing ring (5) extends to the periphery of the screw hole cavity (3). The upper cover (1) has a mounting through hole (6) coaxial with the screw hole seat (4) for each screw hole cavity (3). The end of the mounting through hole (6) away from the screw hole seat (4) is covered with a waterproof cover (7). The bolt extends into the mounting through hole (6) and is threaded into the screw hole seat (4), or the bolt is threaded into the mounting through hole (6) and the screw hole seat (4) in sequence.

2. The waterproof disconnect switch according to claim 1, characterized in that: The edge of the upper cover (1) is provided with a water-proof groove (8) for the sealing ring (5) to be embedded. The water-proof groove (8) extends to the periphery of the mounting through hole (6). The edge of the lower cover (2) is provided with a water-proof protrusion (9) that extends into the water-proof groove (8) and squeezes the sealing ring (5).

3. A waterproof disconnect switch according to claim 1, characterized in that: The mounting through hole (6) is provided with an annular platform (10), the bolt includes a screw head (11) and a screw rod (12), a washer (13) is sandwiched between the screw head (11) and the annular platform (10), and the screw rod (12) passes through the annular platform (10) and is threaded into the screw hole seat (4).

4. A waterproof disconnect switch according to claim 1, characterized in that: The waterproof cover (7) includes a plug-in part (14) and a cover part (15). The plug-in part (14) is plugged into the mounting through hole (6). The end face of the upper cover (1) is recessed with an annular groove (16) for the cover part (15) to be inserted into the mounting through hole (6). A quick-release opening (17) is provided on one side edge of the annular groove (16). The inner bottom wall of the quick-release opening (17) is a slope. The outer edge of the cover part (15) extends along the annular groove (16) to the upper side of the slope. A gap (18) is formed between the slope and the outer edge of the cover part (15).

5. A waterproof disconnect switch according to claim 4, characterized in that: The mounting through hole (6) has a slot (19) on the inner wall of the side near the quick-release port (17), and the plug part (14) has an elastic buckle (20) that engages with the slot (19).

6. A waterproof disconnect switch according to claim 5, characterized in that: The two sides of the slot (19) are respectively provided with an arc-shaped surface (21) along the circumference of the mounting through hole (6). When the waterproof cover (7) is rotated, the elastic buckle (20) slides away from the slot (19) along the arc-shaped surface (21).

7. A waterproof disconnect switch according to claim 6, characterized in that: The inner wall of the mounting through hole (6) is provided with a conical protrusion (22) on the side of the two arc surfaces (21) away from the annular groove (16). A slot (23) is provided between the two sides of the elastic buckle (20) and the insertion part (14). When the elastic buckle (20) and the slot (19) are engaged, the conical protrusion (22) is embedded in the slot (23).

8. A waterproof disconnect switch according to claim 4, characterized in that: The cover (15) is provided with a U-shaped groove (24) on one side corresponding to the quick-release opening (17).

Images