Wire holder and isolating switch

Abstract

The invention relates to the technical field of disconnecting switches, in particular to a wire holder and a disconnecting switch. The wire holder comprises a conductive support and a wiring board, the conductive support is internally provided with an installation cavity, the top wall and the bottom wall of the conductive support are respectively provided with an installation hole, the top wall installation hole and the bottom wall installation hole are coaxially arranged, an upper end cover is fixed in the top wall installation hole, a lower end cover is fixed in the bottom wall installation hole, and the upper end cover and the lower end cover are both of a cylindrical structure with one end open; the wiring board comprises a rotating shaft mounting section and a wiring terminal section, rotating shaft mounting holes are coaxially formed in the rotating shaft mounting section in the mounting hole directions of the top wall and the bottom wall, conductive rotating shafts are arranged in the rotating shaft mounting holes, and the two ends of the conductive rotating shafts penetrate out of the rotating shaft mounting holes and are matched with inner cavities of the upper end cover and the lower end cover; and hole edges at two ends of the rotating shaft mounting hole are respectively in seam allowance fit sealing with the upper end cover and the lower end cover. The upper end and the lower end of the rotating part are sealed in a spigot fit mode, so that foreign matter is prevented from entering the rotating part, and abrasion, clamping stagnation and even damage of the rotating part are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of isolating switches, and in particular to a wiring socket and an isolating switch. Background Art

[0002] The isolating switch is an important electrical equipment. Its main function is to isolate the equipment and power supply, facilitate inspection and maintenance, and ensure the personal safety of operators.

[0003] The Chinese invention patent with authorization announcement number CN111243887B and authorization announcement date 2022 / 06 / 14 discloses a double-column horizontal rotary isolating switch and a wiring assembly, the wiring assembly including a wiring seat, the wiring seat is square, and has an installation cavity inside. The top and bottom of the wiring seat are provided with through holes connecting the inside and outside of the installation cavity. A conductive main shaft is rotatably arranged in the through hole, and one end of the conductive main shaft close to the wiring terminal is arranged in the top through hole of the wiring seat through a first sleeve. A stop flange is arranged on the outer circumferential surface of the first sleeve, and the stop flange can be stopped and matched with the outer side surface of the hole of the top through hole in the up and down directions. The other end of the conductive main shaft is installed in the bottom through hole of the wiring seat through a second sleeve, and an outer flange is arranged on the outer circumferential surface of the second sleeve, and the outer flange can be stopped and matched with the inner side surface of the hole of the bottom through hole in the up and down directions. At the same time, a limit sleeve is arranged on the bottom of the wiring seat from the outside to the inside, and a limit flange is arranged on the outer circumferential surface of the limit sleeve, and the limit flange can be stopped and matched with the outer side surface of the hole of the bottom through hole in the up and down directions.

[0004] In the above-mentioned disconnector, the upper end of the rotating part of the terminal block is matched with the top perforated stop through the first shaft sleeve, and the lower end is matched with the bottom perforated stop through the limit sleeve, thereby limiting the position of the conductive main shaft in the up and down directions, so that the conductive main shaft can rotate relative to the terminal block. Since the rotating part of the disconnector is exposed, foreign matter often enters the rotating part of the terminal block in the disconnector, resulting in aggravated wear of the rotating part of the terminal block, and in severe cases, the rotation of the terminal block may be stuck or even damaged. Summary of the invention

[0005] An object of the present invention is to provide a terminal block to solve the technical problem that foreign objects are easily introduced into the rotating part of the terminal block in the isolating switch, causing increased wear, jamming or even damage to the rotating part; another object of the present invention is to provide an isolating switch using the above-mentioned terminal block to solve the technical problem that the isolating switch has unstable rotation during opening and closing operations.

[0006] To achieve the above object, the present invention provides a technical solution of a wiring socket:

[0007] A terminal block comprises a conductive support and a terminal board, the conductive support has an installation cavity inside, and a top wall installation hole and a bottom wall installation hole are respectively opened on the top wall and the bottom wall which are arranged opposite to each other in the installation cavity, the top wall installation hole and the bottom wall installation hole are coaxially arranged, an upper end cover is fixedly installed in the top wall installation hole, and a lower end cover is fixedly installed in the bottom wall installation hole, and the upper end cover and the lower end cover are both cylindrical structures with one end open; the terminal board comprises a rotating shaft installation section arranged between the top wall installation hole and the bottom wall installation hole and a terminal section cantilevered outside the conductive support, a rotating shaft installation hole is coaxially provided on the rotating shaft installation section along the direction of the top wall installation hole and the bottom wall installation hole, a conductive rotating shaft is provided in the rotating shaft installation hole, two ends of the conductive rotating shaft pass through the rotating shaft installation hole and are installed in cooperation with the inner cavity of the upper end cover and the lower end cover, and the hole edges at both ends of the rotating shaft installation hole are respectively sealed with the upper end cover and the lower end cover through a stop structure.

[0008] Beneficial effects: The present invention provides a new terminal block, which arranges its rotating part, i.e., the shaft mounting section mounted on the conductive shaft and the conductive shaft inside the mounting cavity of the conductive support, and at the same time, the two ends of the conductive shaft are respectively installed in the mounting holes of the top wall and the bottom wall of the conductive support through an upper end cover with an open cylindrical structure at one end and a lower end cover with an open cylindrical structure at the other end, and the hole edges at both ends of the shaft mounting hole are respectively sealed with the stoppers between the upper end cover and the lower end cover, thereby realizing the overall sealing of the rotating part of the terminal block, which can effectively prevent foreign matter from entering the rotating part of the terminal block and causing wear, jamming or even damage to the rotating part.

[0009] Furthermore, a male stop is provided at the edge of the upper end hole of the rotating shaft mounting hole, and a female stop that cooperates with the male stop is provided at a corresponding position of the upper end cover.

[0010] Furthermore, a female stop is provided at the hole edge at the lower end of the rotating shaft mounting hole, and a male stop that cooperates with the female stop is provided at a corresponding position of the lower end cover.

[0011] Furthermore, an outer flange is provided on the male stopper at a corresponding position of the lower end cover, and the outer flange is stop-matched with an upper hole edge of the bottom wall mounting hole of the conductive support in the up-down direction.

[0012] Furthermore, the upper end surface of the upper end cover is provided with a retaining edge structure extending in the radial direction thereof, and the retaining edge structure is engaged with the upper hole edge of the top wall mounting hole of the conductive support in a retaining manner in the up-down direction.

[0013] Furthermore, the retaining edge structure of the upper end cover and the conductive support are fixedly installed by a plurality of bolts.

[0014] Furthermore, the terminal block further comprises a sealing sleeve, which is arranged between the conductive shaft and the contact surface of the upper end cover, the shaft mounting hole and the lower end cover.

[0015] Furthermore, the sealing sleeve is a split structure, including an upper sealing sleeve located at the upper part of the conductive rotating shaft and a lower sealing sleeve located at the lower part of the conductive rotating shaft. The outer circumferential surfaces of the upper sealing sleeve and the lower sealing sleeve are respectively provided with external convex rings along their circumferential directions, and the external convex rings extend into the stop fitting gap to prevent the sealing sleeve from sliding.

[0016] Furthermore, the conductive support is a U-shaped plate with a horizontal opening, and the upper and lower side plate sections of the U-shaped plate constitute the top wall and the bottom wall respectively.

[0017] To achieve the above object, the present invention provides another technical solution of an isolating switch using the above wiring socket:

[0018] The cam is provided with a plurality of holes for holding the top and bottom walls of the mounting hole, and the holes are connected to the top and bottom walls of the mounting hole so that the top and bottom walls of the mounting hole are coaxially arranged, an upper end cover is fixedly installed in the top wall mounting hole, and a lower end cover is fixedly installed in the bottom wall mounting hole, and both the upper end cover and the lower end cover are cylindrical structures with one end open; the terminal board comprises a shaft mounting section arranged between the top wall mounting hole and the bottom wall mounting hole and a terminal section cantilevered outside the conductive support, a shaft mounting hole is coaxially arranged on the shaft mounting section along the direction of the top wall mounting hole and the bottom wall mounting hole, a conductive shaft is arranged in the shaft mounting hole, two ends of the conductive shaft pass through the shaft mounting hole and are installed in cooperation with the inner cavity of the upper end cover and the lower end cover, and the hole edges at both ends of the shaft mounting hole are respectively sealed with the upper end cover and the lower end cover through a stop structure.

[0019] Beneficial effect: The present invention provides a new isolating switch, which is designed to have the rotating part of the terminal block inside the installation cavity of the conductive support, with both ends sealed by an upper end cover and a lower end cover, and a stopper-matching sealing structure is provided between the upper end cover, the lower end cover and the hole edges at both ends of the shaft installation hole, so that the rotating part of the terminal block of the isolating switch is sealed as a whole, which is beneficial to prevent foreign matter from entering the rotating part of the terminal block, so that the isolating switch rotates smoothly, the opening and closing of the switch is more stable, and the service life of the isolating switch is extended.

[0020] Furthermore, a male stop is provided at the edge of the upper end hole of the rotating shaft mounting hole, and a female stop that cooperates with the male stop is provided at a corresponding position of the upper end cover.

[0021] Furthermore, a female stop is provided at the hole edge at the lower end of the rotating shaft mounting hole, and a male stop that cooperates with the female stop is provided at a corresponding position of the lower end cover.

[0022] Furthermore, an outer flange is provided on the male stopper at a corresponding position of the lower end cover, and the outer flange is stop-matched with an upper hole edge of the bottom wall mounting hole of the conductive support in the up-down direction.

[0023] Furthermore, the upper end surface of the upper end cover is provided with a retaining edge structure extending in the radial direction thereof, and the retaining edge structure is engaged with the upper hole edge of the top wall mounting hole of the conductive support in a retaining manner in the up-down direction.

[0024] Furthermore, the retaining edge structure of the upper end cover and the conductive support are fixedly installed by a plurality of bolts.

[0025] Furthermore, the terminal block further comprises a sealing sleeve, which is arranged between the conductive shaft and the contact surface of the upper end cover, the shaft mounting hole and the lower end cover.

[0026] Furthermore, the sealing sleeve is a split structure, including an upper sealing sleeve located at the upper part of the conductive rotating shaft and a lower sealing sleeve located at the lower part of the conductive rotating shaft. The outer circumferential surfaces of the upper sealing sleeve and the lower sealing sleeve are respectively provided with external convex rings along their circumferential directions, and the external convex rings extend into the stop fitting gap to prevent the sealing sleeve from sliding.

[0027] Furthermore, the conductive support is a U-shaped plate with a horizontal opening, and the upper and lower side plate sections of the U-shaped plate constitute the top wall and the bottom wall respectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The figure is a schematic structural diagram of an embodiment of a wiring socket of the present invention.

[0029] In the figure: 1. conductive support; 2. bolt; 3. upper sealing sleeve; 4. upper end cover; 5. terminal block; 6. lower sealing sleeve; 7. conductive rotating shaft; 8. lower end cover; 9. mounting cavity; 10. terminal section; 11. retaining edge structure; 12. outer convex ring. DETAILED DESCRIPTION

[0030] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0031] The main concept of a terminal block of the present invention is: by designing the rotating part of the terminal block, that is, the terminal board rotatably mounted on the conductive rotating shaft and the conductive rotating shaft inside the installation cavity of the conductive support, the two ends of the conductive rotating shaft are respectively sealed and mounted on the top and bottom of the inner wall of the installation cavity of the conductive support through the upper end cover and the lower end cover, and at the same time, the contact between the upper end cover, the lower end cover and the terminal board is designed as a stopper matching structure, so that the rotating part of the terminal block is sealed as a whole, thereby solving the technical problem that foreign matter enters the rotating part of the terminal block and causes wear, jamming or even damage to the rotating part.

[0032] Based on the above main concept, the basic technical solution of the present invention is: Figure 1As shown, it includes a conductive support 1 and a terminal block 5. The conductive support 1 is a horizontally opened U-shaped plate, and its side is used to connect the conductive arm to control the opening and closing operation. The interior of the U-shaped plate forms a mounting cavity 9. The upper and lower side plate sections of the U-shaped plate constitute the top wall and the bottom wall respectively. The top wall and the bottom wall are respectively provided with a top wall mounting hole and a bottom wall mounting hole. The top wall mounting hole and the bottom wall mounting hole are coaxially arranged. An upper end cover 4 is fixedly installed in the top wall mounting hole, and a lower end cover 8 is fixedly installed in the bottom wall mounting hole. Both the upper end cover 4 and the lower end cover 8 are cylindrical structures with one end open, and their inner cavities constitute a conductive shaft mounting groove; the terminal block 5 includes a shaft mounting section arranged between the top wall mounting hole and the bottom wall mounting hole and a cantilevered shaft mounting section outside the conductive support. The terminal section 10 is used to connect the terminal. A shaft mounting hole is provided on the shaft mounting section. The shaft mounting hole is coaxially arranged with the top wall mounting hole and the bottom wall mounting hole, and a conductive shaft 7 is provided in the shaft mounting hole, that is, the shaft mounting section of the terminal block 5 is rotatably mounted on the conductive shaft 7. The wire shaft 7 is arranged in the mounting cavity 9 of the conductive support 1. Both ends of the conductive shaft 7 pass through the shaft mounting hole and are sealed and installed with the conductive shaft mounting grooves of the upper end cover 4 and the lower end cover 8. The hole edges at both ends of the shaft mounting hole are respectively sealed with the upper end cover 4 and the lower end cover 8 through the stop structure, so that the upper and lower ends of the rotating part of the terminal block are respectively sealed, thereby preventing foreign matter from entering, wearing, getting stuck or even damaging the rotating part.

[0033] The following is explained by different embodiments:

[0034] In the above basic embodiment, the stop structure cooperation seal of the upper rotating part is specifically: a male stop or a female stop is provided on the upper hole edge of the shaft mounting hole, and a female stop or a male stop that cooperates with the male stop or the female stop is provided at the corresponding position of the upper end cover 4. In this embodiment, when a male stop is provided on the hole edge of the upper end of the shaft mounting hole, a female stop that cooperates with the male stop on the hole edge is correspondingly provided on the upper end cover 4; when a female stop is provided on the hole edge of the upper end of the shaft mounting hole, a male stop that cooperates with the female stop on the hole edge is correspondingly provided on the upper end cover 4; that is, as long as the stop structure cooperates between the hole edge of the upper end of the shaft mounting hole and the upper end cover 4 to seal the upper rotating part, the male stop and the female stop located on the hole edge of the upper end of the shaft mounting hole or the upper end cover 4 can achieve the corresponding sealing effect. The present invention provides a better embodiment, such as Figure 1As shown, a male stop is provided at the upper end edge of the rotating shaft mounting hole, and a female stop that cooperates with the male stop is provided at a corresponding position of the upper end cover 4. In this embodiment, the upper end edge of the rotating shaft mounting hole is designed as a male stop and the upper end cover 4 is designed as a female stop, which has better sealing performance than the upper end of the rotating shaft mounting hole is designed as a female stop and the upper end cover 4 is designed as a male stop. Since the wiring socket of the present invention is suitable for outdoor environments, it is necessary not only to consider sealing to prevent solid foreign objects from entering, but also to consider rainwater and the like from entering the wiring socket, so the female stop is designed on the upper end cover for better sealing effect.

[0035] In the aforementioned basic embodiment, the stopper structure and the seal of the lower end rotating part are specifically as follows: a male stopper or a female stopper is provided on the hole edge of the lower end of the shaft mounting hole, and a female stopper or a male stopper that is stopper-matched with the male stopper or the female stopper is provided at the corresponding position of the lower end cover 8. In this embodiment, when a male stopper is provided on the hole edge of the lower end of the shaft mounting hole, a female stopper that is stopper-matched with the male stopper of the hole edge of the lower end is provided at the corresponding position of the lower end cover 8; when a female stopper is provided on the hole edge of the lower end of the shaft mounting hole, a male stopper that is stopper-matched with the female stopper of the hole edge of the lower end is provided at the corresponding position of the lower end cover 8; that is, as long as the hole edge of the lower end of the shaft mounting hole and the lower end cover 8 are stopper-matched to seal the lower end rotating part, the male stopper and the female stopper can be located on the hole edge of the lower end of the shaft mounting hole or on the lower end cover 8 to achieve the corresponding sealing effect. The present invention provides a more optimal embodiment, such as Figure 1 As shown, a male stopper is provided at a corresponding position of the lower end cover 8 to seal with a female stopper at the hole edge at the lower end of the shaft mounting hole. In this embodiment, the hole edge at the lower end of the shaft mounting hole is designed as a female stopper, and the corresponding position of the lower end cover 8 is designed as a male stopper, which is beneficial to prevent rainwater from entering the wiring seat, so that the rotating part has better sealing performance.

[0036] The present invention provides a better embodiment, such as Figure 1 As shown, an outer flange is provided on the male stopper at the corresponding position of the lower end cover 8, and the outer flange is matched with the upper hole edge of the bottom wall mounting hole of the conductive support 1 in the vertical direction. In this embodiment, a female stopper is provided on the hole edge of the lower end of the shaft mounting hole, and the lower end cover 8 is correspondingly designed as a male stopper matched with the stopper, and the outer flange is designed on the outer peripheral surface of the male stopper at one end of the lower end cover 8, and the outer flange can be matched with the inner side surface of the hole edge of the bottom wall mounting hole of the conductive support 1 in the vertical direction. The male stopper on the lower end cover 8 can not only be matched with the female stopper of the hole edge at the lower end of the wiring board 5 for stopper sealing, but also can be blocked on the inner side surface of the bottom wall mounting hole of the conductive support 1 in the vertical direction to prevent the lower end cover 8 from falling off from the bottom wall mounting hole to the outside of the conductive support 1.

[0037] The above-mentioned embodiments can realize the sealing effect of the common stoppers at the upper and lower ends of the rotating part of the terminal block, thereby realizing the overall sealing of the rotating part of the terminal block, so as to prevent foreign matter from entering the rotating part and avoid wear, jamming or damage to the rotating part. In one embodiment, an external thread is provided on the outer peripheral surface of the tubular upper end cover 4 with one end open, and an internal thread is provided in the top wall mounting hole of the conductive support 1. The open end of the upper end cover 4 is fixedly threaded along the top wall mounting hole to the mounting cavity 9 of the conductive support 1. This structure can also realize the fixation between the corresponding upper end cover 4 and the top wall mounting hole of the conductive support 1. However, in the actual working process, the conductive shaft 7 will rotate relative to the upper end cover 4 and the lower end cover 8, which can easily cause the threaded connection to loosen during the rotation. For this purpose, the present invention provides a more optimal embodiment, such as Figure 1 As shown, the upper end surface of the upper end cover 4 is provided with a retaining edge structure 11 extending along its radial direction, and the retaining edge structure 11 is matched with the upper hole edge of the top wall mounting hole of the conductive support 1 in the vertical direction, and at the same time, the retaining edge structure 11 of the upper end cover 4 is fixedly installed with the conductive support 1 by a plurality of bolts 2. In this embodiment, by providing the retaining edge structure 11 along its radial direction on the end surface of one end blocked by the upper end cover 4, the retaining edge structure 11 can, on the one hand, be matched with the outer side surface of the hole edge of the top wall mounting hole of the conductive support 1 in the vertical direction to prevent the upper end cover 4 from sliding from the top wall mounting hole into the mounting cavity 9 of the conductive support 1 due to the relative rotation force of the conductive shaft 7, thereby ensuring the overall stability of the wiring seat, and on the other hand, by providing the retaining edge structure 11, the upper end cover 4 and the conductive support 1 can be fixedly installed by bolts 2, thereby ensuring the reliability of the wiring seat.

[0038] The present invention provides a better embodiment, such as Figure 1 As shown, the terminal block further includes a sealing sleeve, which is arranged between the conductive rotating shaft 7 and the contact surface of the upper end cover 4, the rotating shaft mounting hole and the lower end cover 8. In this embodiment, the sealing sleeve is designed, on the one hand, it can seal the connection part of the upper and lower ends to perform stopper matching sealing parts, so that the sealing effect of the connection part is further improved, and at the same time, the sealing sleeve is designed at the rotating part, which can effectively reduce the friction of relative rotation, which is conducive to smoother rotation of the terminal block 5 relative to the conductive rotating shaft 7.

[0039] In one embodiment, the sealing sleeve is designed as one, and its length is the same as the length of the conductive shaft 7, and the sealing sleeve is rotated on the conductive shaft 7. This structure can also achieve sealing of the corresponding connecting parts and lower friction resistance, so that the relative rotation is smoother. The present invention provides a better embodiment, such as Figure 1As shown, the sealing sleeve is a split structure, including an upper sealing sleeve 3 located on the upper part of the conductive rotating shaft 7 and a lower sealing sleeve 6 located on the lower part of the conductive rotating shaft 7. The outer circumferential surfaces of the upper sealing sleeve 3 and the lower sealing sleeve 6 are respectively provided with outer convex rings 12 along their circumferential directions, and the outer convex rings 12 extend into the gap of the stop fitting to prevent the sealing sleeve from sliding. In this embodiment, in order to save materials and achieve corresponding functions at the same time, the sealing sleeve is designed as a split structure, which is respectively located at the connection parts that need to be further sealed. At the same time, in order to prevent the sealing sleeve from sliding toward the center when the terminal block 5 rotates relative to the conductive rotating shaft 7, outer convex rings 12 are respectively designed on the outer circumferential surfaces of the upper sealing sleeve 3 and the lower sealing sleeve 6 along their circumferential directions, and the outer convex rings 12 are clamped at the connection part of the stop fitting, thereby preventing them from sliding relative to each other.

[0040] The present invention provides another embodiment of an isolating switch using the above-mentioned terminal block, the isolating switch includes an insulating support and a terminal block, the terminal block is fixedly mounted on the insulating support, the terminal board 5 of the terminal block is connected to the terminal, the side of the conductive support 7 is connected to the conductive arm, the conductive arm is provided with a contact, when the insulating support rotates, the terminal block also rotates, and the conductive arms on the sides of the two terminal blocks facing each other can realize the opening and closing operations of the isolating switch as the insulating support rotates. In this embodiment, the above-mentioned terminal block is applied to the isolating switch, so that the rotating part of the terminal block of the isolating switch is well sealed, which is conducive to preventing foreign matter from entering, thereby preventing wear, jamming and even damage to the rotating part, and then the isolating switch is well protected, so that its service life is extended; secondly, the terminal block of the present invention has good versatility, not only can be applied to open-type isolating switches, but also can be well applied to double-column horizontal rotary isolating switches, and has good application prospects.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the contents of the description and drawings of the present invention should also be included in the protection scope of the present invention.

Claims

1. A terminal block, characterized in that: The present invention comprises a conductive support and a wiring board, wherein the conductive support has an installation cavity inside, and a top wall installation hole and a bottom wall installation hole are respectively opened on the top wall and the bottom wall which are arranged opposite to each other in the installation cavity, and the top wall installation hole and the bottom wall installation hole are coaxially arranged, an upper end cover is fixedly installed in the top wall installation hole, and a lower end cover is fixedly installed in the bottom wall installation hole, and the upper end cover and the lower end cover are both cylindrical structures with one end open; the wiring board comprises a rotating shaft installation section arranged between the top wall installation hole and the bottom wall installation hole and a wiring terminal section cantilevered outside the conductive support, a rotating shaft installation hole is coaxially arranged on the rotating shaft installation section along the direction of the top wall installation hole and the bottom wall installation hole, a conductive rotating shaft is arranged in the rotating shaft installation hole, two ends of the conductive rotating shaft pass through the rotating shaft installation hole and are installed in cooperation with the inner cavity of the upper end cover and the lower end cover, and the hole edges at both ends of the rotating shaft installation hole are respectively sealed with the upper end cover and the lower end cover through a stop structure.

2. The terminal block according to claim 1, characterized in that: A male stop is arranged at the upper hole edge of the rotating shaft installation hole, and a female stop that cooperates with the male stop is arranged at a corresponding position of the upper end cover.

3. The terminal block according to claim 2, characterized in that: A female stop is provided along the lower end hole of the rotating shaft installation hole, and a male stop that cooperates with the female stop is provided at a corresponding position of the lower end cover.

4. The terminal block according to claim 3, characterized in that: An outer flange is provided on the male stopper at the corresponding position of the lower end cover, and the outer flange is blocked and matched with the upper hole edge of the bottom wall mounting hole of the conductive support in the up and down directions.

5. The terminal block according to any one of claims 1 to 4, characterized in that: The upper end surface of the upper end cover is provided with a retaining edge structure extending in the radial direction thereof, and the retaining edge structure is engaged with the upper hole edge of the top wall mounting hole of the conductive support in a retaining manner in the up-down direction.

6. The terminal block according to claim 5, characterized in that: The retaining edge structure of the upper end cover and the conductive support are fixedly installed by a plurality of bolts.

7. The terminal block according to claim 6, characterized in that: The wiring seat also includes a sealing sleeve, which is arranged between the conductive shaft and the contact surface of the upper end cover, the shaft mounting hole and the lower end cover.

8. The terminal block according to claim 7, characterized in that: The sealing sleeve is a split structure, including an upper sealing sleeve located at the upper part of the conductive rotating shaft and a lower sealing sleeve located at the lower part of the conductive rotating shaft. The outer circumferential surfaces of the upper sealing sleeve and the lower sealing sleeve are respectively provided with external convex rings along their circumferential directions. The external convex rings extend into the gap between the stop and the stop to prevent the sealing sleeve from sliding.

9. The terminal block according to claim 8, characterized in that: The conductive support is a U-shaped plate with a horizontal opening, and the upper and lower side plate sections of the U-shaped plate respectively constitute the top wall and the bottom wall.

10. An isolating switch, comprising an insulating support and a terminal block, wherein the terminal block is fixed on the insulating support, and wherein: The structure of the wiring socket is the wiring socket as described in any one of claims 1-9.

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