A sealing structure of a disconnector

Abstract

The utility model discloses a sealing structure of disconnecting switch relates to disconnecting switch technical field, and its technical scheme is: including switch lower shell subassembly, switch lower shell subassembly top is equipped with switch upper shell subassembly, and switch upper shell subassembly top is equipped with switch control wrench main part. The utility model discloses through the cooperation of upper sealing washer and lower sealing washer of sealing compression unit, can form the package formula sealing to the incoming and outgoing line end, and can drive the threaded rod, trapezoidal block transmission through the screwing cross groove end head, make the upper sealing washer press down, further wrap up the line end body, effectively block the link gap of incoming and outgoing line end and disconnecting switch body, through the cooperation of side sealing washer and lower side sealing groove, upper side sealing groove, can form the close sealing to the upper and lower shell body side gap, block the invasion of external dust, moisture and other impurities, avoid the problem that the existing disconnecting switch has no special sealing structure or only simple filling leads to the poor sealing effect.

Description

Technical Field

[0001] This utility model relates to the field of disconnecting switch technology, and specifically to a sealing structure for a disconnecting switch. Background Technology

[0002] As a critical electrical device, disconnecting switches play an important role in isolating power sources, ensuring maintenance safety, and changing system operation modes. Their operational reliability directly affects the stability and security of the entire power network. Disconnecting switches typically need to be connected to external cables or busbars through incoming and outgoing terminals to realize the transmission and distribution of electrical energy. As the key interface for current transmission, the structural design and sealing performance of the incoming and outgoing terminals have a crucial impact on the overall operation of the disconnecting switch.

[0003] In the actual design and application of existing disconnect switches, since the incoming and outgoing lines need to extend to the outside of the disconnect switch to complete the connection with the external lines, there will inevitably be structural gaps at the connection between the incoming and outgoing lines and the disconnect switch body. Currently, most disconnect switches on the market do not have a special sealing structure at this connection, or only use a simple gap filling method, which makes it difficult to form an effective sealing protection. Utility Model Content

[0004] Therefore, this utility model provides a sealing structure for a disconnecting switch, which solves the problem that the disconnecting switch does not have a dedicated sealing structure at the line connection by means of a sealing and pressing unit.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sealing structure for a disconnecting switch, comprising a lower housing assembly, an upper housing assembly on top of the lower housing assembly, a switch control wrench body on top of the upper housing assembly, two side sealing gaskets and a sealing clamping unit between the lower housing assembly and the upper housing assembly, the lower housing assembly comprising a lower housing body, a plurality of wire end connecting blocks fixedly disposed inside the lower housing body, two lower side sealing grooves and two lower main sealing grooves being formed on the top of the lower housing body, and a plurality of housing wire ends being formed on the top of each of the two lower main sealing grooves. The switch upper housing assembly includes an upper housing body. Two upper sealing grooves and two upper main sealing grooves are formed at the bottom of the upper housing body. The sealing and pressing unit includes a threaded rod. Both ends of the threaded rod are fixedly provided with cross-grooved ends. Multiple upper trapezoidal blocks are sleeved on the outside of the threaded rod. Upper sealing gaskets are provided at the bottom of the multiple upper trapezoidal blocks. Lower trapezoidal blocks are fixedly provided at the top of the multiple upper sealing gaskets. Lower sealing gaskets are provided at the bottom of the upper sealing gaskets. Multiple sealing gasket wire end grooves are formed inside the lower sealing gaskets. Wire end bodies are embedded inside the multiple sealing gasket wire end grooves. A filling block is fixedly provided at the bottom of the lower sealing gasket.

[0006] Preferably, the lower housing body is in contact with the upper housing body and is fixedly connected by fasteners.

[0007] Preferably, the bottom of the side sealing gasket is located inside the lower sealing groove, and the top of the side sealing gasket is located inside the upper sealing groove.

[0008] Preferably, the cross groove end penetrates one side wall of the upper main sealing groove and is connected to one side wall of the upper main sealing groove via a bearing.

[0009] Preferably, the upper trapezoidal block is disposed inside the upper main sealing groove and slidably connected to the upper main sealing groove, and the upper trapezoidal block is sleeved on the outside of the threaded rod and slidably connected to the threaded rod.

[0010] Preferably, the upper sealing gasket is disposed inside the upper main sealing groove and is slidably connected to the upper main sealing groove.

[0011] Preferably, the lower trapezoidal block is disposed inside the upper main sealing groove and is slidably connected to the upper main sealing groove, and the inclined surface of the lower trapezoidal block is slidably connected to the inclined surface of the upper trapezoidal block.

[0012] Preferably, both the filling block and the lower sealing gasket are fixedly disposed inside the lower main sealing groove.

[0013] Preferably, the wire end body and the wire end connecting block are fixedly connected by fasteners, and the wire end body is embedded in the wire end groove of the housing and the wire end groove of the sealing gasket.

[0014] The present invention has the following advantages: By using the sealing and pressing unit in conjunction with the upper and lower sealing gaskets, a wrap-around seal can be formed on the inlet and outlet ends. Furthermore, by turning the cross groove end, the threaded rod and trapezoidal block can be driven to press down the upper sealing gasket, further tightening the line end body and effectively sealing the connection gap between the inlet and outlet ends and the disconnecting switch body. By cooperating with the side sealing gasket and the lower and upper sealing grooves, a tight seal can be formed on the side gaps of the upper and lower housings, preventing the intrusion of external dust, moisture and other impurities, thus avoiding the problem of poor sealing effect caused by the lack of a special sealing structure or simple filling in the existing disconnect switches. Attached Figure Description

[0015] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0017] Figure 1 The front perspective view provided for this utility model; Figure 2 This is a partial sectional perspective view of the main view provided for this utility model; Figure 3 This is a partial exploded perspective view of the main view provided by this utility model; Figure 4 Three-dimensional structural views of the switch lower housing assembly and switch upper housing assembly provided by this utility model; Figure 5 An exploded perspective view of the sealing and clamping unit provided by this utility model.

[0018] In the diagram: 10 Switch lower housing assembly, 11 Lower housing body, 12 Wire terminal connecting block, 13 Lower side sealing groove, 14 Upper main sealing groove, 15 Housing wire terminal groove, 20 Switch upper housing assembly, 21 Upper housing body, 22 Upper side sealing groove, 23 Upper main sealing groove, 30 Switch control wrench body, 40 Side sealing gasket, 50 Sealing clamping unit, 51 Threaded rod, 52 Cross groove end, 53 Upper trapezoidal block, 54 Upper sealing gasket, 55 Lower trapezoidal block, 56 Filler block, 57 Lower sealing gasket, 58 Sealing gasket wire terminal groove, 59 Wire terminal body. Detailed Implementation

[0019] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] See attached document Figure 1 -Appendix Figure 5This utility model provides a sealing structure for an isolating switch, including a lower switch housing assembly 10, an upper switch housing assembly 20 on the top of the lower switch housing assembly 10, a switch control wrench body 30 on the top of the upper switch housing assembly 20, two side sealing gaskets 40 and a sealing clamping unit 50 between the lower switch housing assembly 10 and the upper switch housing assembly 20, the lower switch housing assembly 10 including a lower housing body 11, a plurality of wire end connecting blocks 12 fixedly disposed inside the lower housing body 11, two lower side sealing grooves 13 and two lower main sealing grooves 14 opened on the top of the lower housing body 11, and a plurality of housing wire end grooves 15 opened on the top of each of the two lower main sealing grooves 14, the upper switch housing assembly... 20 includes an upper housing body 21. The bottom of the upper housing body 21 has two upper sealing grooves 22 and two upper main sealing grooves 23. The sealing and pressing unit 50 includes a threaded rod 51. Both ends of the threaded rod 51 are fixedly provided with cross groove ends 52. Multiple upper trapezoidal blocks 53 are sleeved on the outside of the threaded rod 51. The bottom of the multiple upper trapezoidal blocks 53 is provided with an upper sealing gasket 54. The top of the multiple upper sealing gaskets 54 is fixedly provided with a lower trapezoidal block 55. The bottom of the upper sealing gaskets 54 is provided with a lower sealing gasket 57. Multiple sealing gasket wire end grooves 58 are opened inside the lower sealing gasket 57. Wire end bodies 59 are embedded inside the multiple sealing gasket wire end grooves 58. A filling block 56 is fixedly provided at the bottom of the lower sealing gasket 57. In this embodiment, to achieve effective sealing and protection of the connection between the incoming and outgoing lines of the disconnecting switch, the lower housing body 11 serves as the lower base carrier. The internal line end connecting block 12 is connected to the line end body 59 via fasteners. Its lower sealing groove 13 cooperates with the upper sealing groove 22 of the upper housing body 21 and the side sealing gasket 40 to achieve initial sealing of the gaps on the sides of the upper and lower housings, preventing external impurities from entering. The lower main sealing groove 14 of the lower housing body 11 corresponds to the upper main sealing groove 23 of the upper housing body 21, forming the installation space of the sealing and pressing unit 50. The housing line end groove 15 and the sealing gasket line end groove 58 of the lower sealing gasket 57 cooperate with the embedded end body 59 to reduce the initial gap. The sealing and pressing unit 50 is the core: the cross groove end 52 penetrates the upper main sealing... The sidewall of groove 23 is connected by a bearing, which not only drives the threaded rod 51 to rotate steadily but also limits its axial movement. The upper trapezoidal block 53 is fitted outside the threaded rod 51 and slides horizontally along the upper main sealing groove 23 (the groove body guides and limits movement to prevent rotation with the rod). The lower trapezoidal block 55 at the top of the upper sealing gasket 54 cooperates with the inclined surface of the upper trapezoidal block 53. Rotating the cross groove end 52 causes the threaded rod 51 to rotate, the upper trapezoidal block 53 moves horizontally and pushes the lower trapezoidal block 55 to move vertically, causing the upper sealing gasket 54 to be pressed down. The filling block 56 is fixed in the lower main sealing groove 14 to support the lower sealing gasket 57 to prevent excessive deformation. After the upper sealing gasket 54 is pressed down, it and the lower sealing gasket 57 together wrap tightly around the line end body 59, sealing the connection gap between the inlet and outlet line ends and the body, solving the existing sealing defects, and ensuring the stable and safe operation of the disconnecting switch. To achieve a stable assembly of the upper and lower housings and an effective seal between their side gaps, this device employs the following technical solution: the lower housing body 11 contacts the upper housing body 21 and is fixedly connected by fasteners. The top of the side sealing gasket 40 is located inside the upper side sealing groove 22. During assembly, the bottom of the side sealing gasket 40 is first embedded into the pre-set lower side sealing groove 13 of the lower housing body 11. The lower side sealing groove 13 is used to initially position the side sealing gasket 40 to prevent it from shifting. Then, the upper housing body 21 is precisely aligned with the lower housing body 11, so that the bottom of the upper housing body 21 and the top of the lower housing body 11 are completely fitted together. At this time, the top of the side sealing gasket 40 will naturally embed into the upper side sealing groove 22 of the upper housing body 21. The upper and lower sealing grooves together form a bidirectional limit on the side sealing gasket 40, ensuring that it is in the middle of the gap between the upper and lower housing sides. Then, fasteners (such as bolts and screws) are passed through the mounting holes at the corresponding positions of the upper housing body 21 and the lower housing body 11 and tightened. The locking force of the fasteners will cause the upper and lower housings to be tightly pressed together, and at the same time, the side sealing gasket 40 is uniformly squeezed, causing the side sealing gasket 40 to undergo elastic deformation, filling the tiny gap between the sides of the upper and lower housings, forming a continuous and tight side sealing barrier, effectively blocking the channel for external impurities to enter the disconnect switch from the side. At the same time, the fastener fixation can also ensure the structural stability of the upper and lower housing assembly, avoiding housing separation or sealing failure due to vibration and other factors. To achieve targeted sealing of the inlet and outlet ends, this device employs the following technical solution: the cross-groove end 52 penetrates one side wall of the upper main sealing groove 23 and is connected to the side wall of the upper main sealing groove 23 via a bearing; the upper trapezoidal block 53 is disposed inside the upper main sealing groove 23 and is slidably connected to the upper main sealing groove 23; the upper trapezoidal block 53 is sleeved on the outside of the threaded rod 51 and is slidably connected to the threaded rod 51; the upper sealing gasket 54 is disposed inside the upper main sealing groove 23 and is slidably connected to the upper main sealing groove 23; the lower trapezoidal block 55 is disposed inside the upper main sealing groove 23 and is slidably connected to the upper main sealing groove 23; the inclined surface of the lower trapezoidal block 55 is slidably connected to the inclined surface of the upper trapezoidal block 53; and the filling block 56 and... The lower sealing gaskets 57 are all fixedly installed inside the lower main sealing groove 14. The wire end body 59 and the wire end connecting block 12 are fixedly connected by fasteners. The wire end body 59 is embedded in the wire end groove 15 of the housing and the wire end groove 58 of the sealing gasket. By turning the cross groove end head 52 clockwise with a platform wrench or box wrench, the rotation of the cross groove end head 52 causes the upper trapezoidal block 53 to move through the threaded rod 51. The movement of the upper trapezoidal block 53, through its engagement with the inclined surface of the lower trapezoidal block 55, transforms the linear movement into vertical movement, causing the lower trapezoidal block 55 to drive the upper sealing gasket 54 to move downward, thereby causing the upper sealing gasket 54 to apply pressure to the wire end body 59, making its wrapping effect on the wire end body 59 better.

[0021] The usage process of this utility model is as follows: When using this utility model, assemble the upper and lower shell components: Place the bottom of the upper shell component 20 downwards, align it with the top of the lower shell body 11, adjust the position of the upper shell component 20 to ensure that the upper sealing groove 22 at the bottom of the upper shell body 21 is precisely aligned with the upper sealing gasket 54 and the side sealing gasket 40 in the lower sealing groove 13 of the lower shell body 11, and that the upper shell body 21 does not touch the already installed wire end body 59. Slowly lower the upper shell body 21, and the top of the side sealing gasket 40 is fully embedded in the upper sealing groove 22 of the upper shell body 21 until the surfaces of the upper shell body 21 and the lower shell body 11 are completely in contact. Then, use fasteners such as screws to pass through the corresponding mounting holes on the upper shell body 21 and the lower shell body 11 in sequence to firmly fix the two. At this time, the threaded rod 51, the cross groove end 52, and the upper ladder are in place. The upper trapezoidal block 53, the upper sealing gasket 54, and the lower trapezoidal block 55 are located in the upper main sealing groove 23, while the filling block 56, the lower sealing gasket 57, and the sealing gasket end groove 58 are located in the lower main sealing groove 14. When the switch lower housing assembly 10 and the switch upper housing assembly 20 are engaged, the upper sealing gasket 54 and the lower sealing gasket 57 adhere to the outside of the end body 59 to form a wrap-around seal. To improve the sealing effect, the cross groove end 52 can be turned clockwise by using a platform wrench or a box wrench. The rotation of the cross groove end 52 causes the upper trapezoidal block 53 to move through the threaded rod 51. The movement of the upper trapezoidal block 53, through its engagement with the inclined surface of the lower trapezoidal block 55, transforms linear movement into vertical movement, causing the lower trapezoidal block 55 to drive the upper sealing gasket 54 to move downward. This causes the upper sealing gasket 54 to apply pressure to the end body 59, resulting in a better wrap-around effect.

[0022] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A sealing structure for a disconnecting switch, comprising a lower housing assembly (10), characterized in that: The lower switch housing assembly (10) is provided with an upper switch housing assembly (20) on top. The upper switch housing assembly (20) is provided with a switch control wrench body (30) on top. Two side sealing gaskets (40) and a sealing clamping unit (50) are provided between the lower switch housing assembly (10) and the upper switch housing assembly (20). The lower switch housing assembly (10) includes a lower housing body (11). Multiple wire end connecting blocks (12) are fixedly provided inside the lower housing body (11). Two lower side sealing grooves (13) and two lower main sealing grooves (14) are opened on the top of the lower housing body (11). Multiple housing wire end grooves (15) are opened on the top of the two lower main sealing grooves (14). The upper switch housing assembly (20) includes an upper housing body (21). The upper housing body (21) 21) Two upper sealing grooves (22) and two upper main sealing grooves (23) are opened at the bottom. The sealing and pressing unit (50) includes a threaded rod (51). Both ends of the threaded rod (51) are fixed with cross groove ends (52). Multiple upper trapezoidal blocks (53) are sleeved on the outside of the threaded rod (51). The bottom of the multiple upper trapezoidal blocks (53) is provided with an upper sealing gasket (54). The top of the multiple upper sealing gaskets (54) is fixed with a lower trapezoidal block (55). The bottom of the upper sealing gasket (54) is provided with a lower sealing gasket (57). Multiple sealing gasket line end grooves (58) are opened inside the lower sealing gasket (57). The line end body (59) is embedded inside the multiple sealing gasket line end grooves (58). The bottom of the lower sealing gasket (57) is fixed with a filling block (56).

2. The sealing structure of the disconnecting switch according to claim 1, characterized in that: The lower housing body (11) is in contact with the upper housing body (21) and is fixedly connected by fasteners.

3. The sealing structure of the disconnector switch according to claim 1, characterized in that: The top of the side sealing gasket (40) is located inside the upper side sealing groove (22).

4. The sealing structure of a disconnecting switch according to claim 1, characterized in that: The cross groove end (52) penetrates one side wall of the upper main sealing groove (23) and is connected to one side wall of the upper main sealing groove (23) through a bearing.

5. The sealing structure of a disconnecting switch according to claim 1, characterized in that: The upper trapezoidal block (53) is located inside the upper main sealing groove (23) and is slidably connected to the upper main sealing groove (23). The upper trapezoidal block (53) is sleeved on the outside of the threaded rod (51) and is slidably connected to the threaded rod (51).

6. The sealing structure of a disconnecting switch according to claim 1, characterized in that: The upper sealing gasket (54) is located inside the upper main sealing groove (23) and is slidably connected to the upper main sealing groove (23).

7. The sealing structure of a disconnecting switch according to claim 1, characterized in that: The lower trapezoidal block (55) is located inside the upper main sealing groove (23) and is slidably connected to the upper main sealing groove (23). The inclined surface of the lower trapezoidal block (55) is slidably connected to the inclined surface of the upper trapezoidal block (53).

8. The sealing structure of a disconnecting switch according to claim 1, characterized in that: The filling block (56) and the lower sealing gasket (57) are both fixed inside the lower main sealing groove (14).

9. The sealing structure of a disconnecting switch according to claim 1, characterized in that: The wire end body (59) and the wire end connecting block (12) are fixedly connected by fasteners. The wire end body (59) is embedded in the wire end groove (15) of the housing and the wire end groove (58) of the sealing gasket.

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