Drawing type disconnecting switch

Abstract

The invention relates to the field of electrical equipment, and discloses a pull-out disconnecting switch which comprises a switch body, the switch body is provided with a contact part used for wiring and a conducting rod corresponding to the contact part, and a limiting assembly is arranged between the conducting rod and the switch body. An adjusting assembly corresponding to the limiting assembly in position is arranged in the switch body. Through cooperation among the switch body, the conducting rod, the limiting assembly, the adjusting assembly and the like, the switch body can be switched to an opening state by pulling down the conducting rod for the first time, and the switch body can be switched to the opening state by pulling down the conducting rod for the second time; the whole operation is simple, the state switching of the switch body between closing and opening can be realized only by pulling down the conducting rod, and the limiting can be automatically realized after the conducting rod is pulled down to keep the state stable.

Description

Technical Field

[0001] The invention relates to the technical field of electrical equipment, and in particular to a pull-out type isolating switch. Background Art

[0002] Isolating switch refers to a kind of switch that can carry the current under normal circuit conditions and the current under abnormal conditions (such as short circuit) within a specified time when in the closed position; when in the open position, there is an insulation distance between the contacts that meets the specified requirements and an obvious disconnection mark. Therefore, as an indispensable power equipment in the power grid system, it is widely used in overhead power distribution lines.

[0003] For example, Chinese patent publication number CN117116699A discloses a fully sealed pull-out column-mounted disconnector, which includes a static contact and an insulating shell with an opening upward. The insulating shell is fixedly installed on the outer side of the upper part of the static contact, and a rod hole that penetrates inside and outside is provided in the middle of the lower end of the insulating shell. A moving contact insulating rod whose upper end can be clamped together with the lower part of the static contact is slidably installed in the rod hole. The upper end of the moving contact insulating rod is a conductor, and a wiring hole that penetrates inside and outside is provided on the left side of the middle of the insulating shell. Under the preload force of the compression spring, the moving contact and the static contact can always be kept in a closed state, so as to prevent the moving contact insulating rod from falling and opening due to its own weight and vibration; through the adjustment groove, long slide groove, short slide groove and clamping teeth, the opening and closing state of the disconnector can be reliably controlled.

[0004] This application uses a pull rod to drive the latch tooth to descend and then drive the latch tooth to rotate, and then releases the pull rod to allow the latch tooth to rise and reset and be stuck in a short slide slot, thereby achieving the opening switching and state maintenance of the disconnector. It is rather troublesome for the disconnector to switch between the closed / open states, and the steps are also rather cumbersome, and there are certain limitations in use.

[0005] Therefore, it is necessary to provide a pull-out isolating switch to solve the above technical problems. Summary of the invention

[0006] The object of the present invention is to provide a pull-out isolating switch to solve the problems raised in the above background technology.

[0007] To achieve the above purpose, a pull-out isolating switch is designed which can simplify the operation steps and realize rapid switching between closing / opening of the isolating switch.

[0008] Based on the above ideas, the present invention provides the following technical solutions: a pull-out isolating switch, comprising a switch body, on which a contact part for wiring and a conductive rod corresponding to the contact part are arranged, a limit assembly is arranged between the conductive rod and the switch body, and an adjustment assembly corresponding to the position of the limit assembly is arranged inside the switch body; when the conductive rod is pulled down based on the switch body, the state limit of the conductive rod after being pulled down can be achieved through the limit assembly and the adjustment assembly, and when the conductive rod continues to be pulled down based on the switch body, the conductive rod can be restored to its initial state through the limit assembly and the adjustment assembly.

[0009] As a further solution of the present invention: the limit assembly includes a slider that slides with the conductive rod, a second spring is fixedly installed between the slider and the conductive rod, a first spring is fixedly installed on the bottom surface of the slider, the first spring is abutted against the inner bottom wall of the switch body, so that the slider has a tendency to move toward the contact part.

[0010] As a further solution of the present invention: the slider slides along the radial direction of the conductive rod, and the second spring makes the slider have a tendency to move outward from the conductive rod.

[0011] As a further solution of the present invention: the adjustment component includes a base fixedly installed in the switch body, a stopper is fixedly installed on the base, a spacer is slidably installed under the stopper on the base, and inclined surfaces are arranged on the slider, the stopper and the spacer.

[0012] As a further solution of the present invention: the inclined surface on the slider is designed in the same direction as the inclined surface on the block, the inclined surface on the block and the inclined surface on the spacer are designed in the opposite direction, the inclined surfaces on the spacer and the block are in a side V-shape as a whole, and the turning part of the V-shape points to the conductive rod.

[0013] As a further solution of the present invention: the adjustment assembly includes two rings, the upper ring is fixedly connected to the inner wall of the switch body, and the lower ring is slidably installed in the switch body, and the slider and the two rings are both provided with inclined surfaces.

[0014] As a further solution of the present invention: the inclined surface of the upper ring is designed in the same direction as the inclined surface on the slider, the inclined surfaces on the two rings are designed in opposite directions and are in a side V-shape as a whole, and the turning part of the V-shape points to the conductive rod.

[0015] As a further solution of the present invention: an end cover is movably installed at the bottom of the switch body, and a sliding component corresponding to the position of the slider and engaged with the switch body is provided on the surface of the end cover; when the conductive rod drives the slider to descend, the slider contacts the sliding component, which can release the engagement state between the sliding component and the switch body.

[0016] As a further solution of the present invention: the sliding assembly includes a truncated table and a clamping shaft that slide with the end cover, a gear is rotatably installed inside the end cover, and tooth segments connected to the gear transmission are fixedly installed on the surface of the circular ring and the surface of the clamping shaft, and a third spring is fixedly installed between the bottom of the truncated table and the end cover; when the truncated table retracts into the end cover, the clamping shaft can be driven to retract into the end cover through the tooth segments and the gears.

[0017] As a further solution of the present invention: a cavity is provided inside the end cover for accommodating the truncated cone, gear, gear segment and clamping shaft; the truncated cone can slide along the axial direction of the end cover based on the cavity; and the clamping shaft can slide along the radial direction of the end cover based on the cavity.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: through the cooperation among the switch body, the conductive rod, the limit assembly and the adjustment assembly, the switch body can be turned to the open state by pulling down the conductive rod once, and the continuous stability of the open state can be ensured; the switch body can be switched to the open state by pulling down the conductive rod a second time, and the contact of the closed state can be ensured to be reliable; the overall operation is simple, and the switch body can be switched between closed / open by only pulling down the conductive rod, and the limit can be automatically achieved after pulling down, and there is no need to readjust the position of the conductive rod, which can effectively reduce the burden on staff and improve overall work efficiency, and is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0020] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the internal structure of the switch body of the present invention;

[0022] Figure 3 for Figure 2 Exploded diagram of

[0023] Figure 4 It is a schematic diagram of the structure of the slider, the first spring and the second spring of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the collar and the switch body of the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the end cover and the switch body of the present invention;

[0026] Figure 7 It is a schematic diagram of the structure of the collar and the slider of the present invention;

[0027] Figure 8 It is a schematic diagram of the internal structure of the end cover of the present invention;

[0028] Fig. 9 It is a schematic diagram of the structure of the boss and the switch body of the present invention;

[0029] Fig.10 It is a schematic diagram of the card slot structure of the present invention.

[0030] In the figure: 1. switch body; 2. contact part; 3. conductive rod; 4. limit assembly; 5. adjustment assembly; 6. inclined plane; 7. sliding assembly; 101. end cover; 102. boss; 103. slot; 104. cavity; 201. static contact unit; 202. moving contact unit; 401. slider; 402. first spring; 403. second spring; 501. base; 502. stopper; 503. spacer; 5001. collar; 701. frustum; 702. clamping shaft; 703. gear; 704. tooth segment; 705. third spring. DETAILED DESCRIPTION

[0031] Embodiment 1:

[0032] See also Figures 1 to 5 The embodiment of the present invention provides a pull-out isolating switch, which is mainly used to simplify the operation steps and quickly realize the closing / opening of the switch body 1. It specifically includes a switch body 1, on which a contact part 2 for wiring and a conductive rod 3 corresponding to the position of the contact part 2 are provided. When the conductive rod 3 contacts the contact part 2, the switch body 1 can be closed, and when separated, the switch body 1 can be opened. In actual application, a pull ring is fixedly installed at the bottom of the conductive rod 3 to facilitate pulling the conductive rod 3.

[0033] Specifically, the contact part 2 includes a stationary contact unit 201 and a moving contact unit 202 fixedly mounted on the switch body 1, a part of the two units are extended from the switch body 1, and are used to form a connection with an external wire, and the other part of the two units are located inside the switch body 1, and are used to contact the conductive rod 3 to realize the closing / opening of the switch body 1. Among them, the stationary contact unit 201 is located at the top of the switch body 1, and the moving contact unit 202 is located at the front side of the switch body 1, and the switch body 1, the conductive rod 3, the stationary contact unit 201 and the moving contact unit 202 are all existing mature technologies, and are not described in detail here.

[0034] Furthermore, a limit assembly 4 is provided between the conductive rod 3 and the switch body 1, and an adjustment assembly 5 corresponding to the position of the limit assembly 4 is provided inside the switch body 1. When the conductive rod 3 is pulled down based on the switch body 1, the limit assembly 4 and the adjustment assembly 5 can realize the state limit of the conductive rod 3 after being pulled down, and when the conductive rod 3 is further pulled down based on the switch body 1, the limit assembly 4 and the adjustment assembly 5 can realize the reset of the conductive rod 3 based on the switch body 1.

[0035] In the above structure, the conductive rod 3 can be moved downward by pulling down once, so that the conductive rod 3 is separated from the static contact unit 201 and the moving contact unit 202, and can be automatically positioned after being lowered, so as to avoid the conductive rod 3 rising and contacting the static contact unit 201 and the moving contact unit 202, thereby ensuring the opening effect. The conductive rod 3 can be positioned after being pulled down once by pulling down twice, so that the conductive rod 3 automatically rises and resets to resume contact with the static contact unit 201 and the moving contact unit 202, thereby restoring the closing effect of the switch body 1.

[0036] Reference Figures 2 to 4 In this embodiment, preferably: the limit assembly 4 includes a slider 401 that slides with the conductive rod 3, a second spring 403 is fixedly installed between the end of the slider 401 away from the switch body 1 and the conductive rod 3, a first spring 402 is fixedly installed on the bottom surface of the slider 401, and the first spring 402 is against the inner bottom wall of the switch body 1, so that the slider 401 has a tendency to approach the static contact unit 201, thereby making the conductive rod 3 have a tendency to move upward in the initial state.

[0037] In the above structure, the slider 401 slides along the radial direction of the conductive rod 3, and can contact the adjustment component 5 when the conductive rod 3 is pulled down once. At this time, the slider 401 can shrink into the conductive rod 3 and squeeze the second spring 403. After the next time, the slider 401 can be against the adjustment component 5 to achieve limiting, so that the conductive rod 3 is also limited accordingly.

[0038] Reference Figures 2 to 4 In this embodiment, preferably: the adjustment component 5 includes a base 501 fixedly installed inside the switch body 1, a block 502 is fixedly installed on the base 501, a spacer 503 is slidably installed on the base 501 below the block 502, and the slider 401, the block 502 and the spacer 503 are all provided with an inclined surface 6, the inclined surface 6 on the slider 401 is parallel to the inclined surface 6 on the block 502 and is designed in the same direction, while the inclined surface 6 on the block 502 is designed in the opposite direction to the inclined surface 6 on the spacer 503, and the inclined surfaces 6 on the spacer 503 and the block 502 are designed in a side V shape as a whole, and the V-shaped turning part points to the conductive rod 3.

[0039] When the slider 401 contacts the stopper 502 as the conductive rod 3 descends, the slider 401 will move into the conductive rod 3 and squeeze the second spring 403. After passing over the stopper 502, the slider 401 can automatically reset under the action of the second spring 403. At this time, the conductive rod 3 can drive the top surface of the slider 401 to abut against the bottom surface of the stopper 502 under the action of the first spring 402, thereby realizing the limiting of the slider 401 and the conductive rod 3.

[0040] Or, refer to Figure 5In this embodiment, the adjustment assembly 5 may include two collars 5001, the upper collar 5001 is fixedly connected to the inner wall of the switch body 1, and the lower collar 5001 is slidably installed in the switch body 1, and the inclined surface 6 is also correspondingly arranged on the two collars 5001, and the arrangement direction of the inclined surface 6 on the two collars 5001 is exactly the same as the arrangement direction of the inclined surface 6 on the stopper 502 and the spacer 503. Through the above design, the conductive rod 3 can also rotate along its circumferential direction when in use, thereby changing the contact area between the conductive rod 3 and the static contact unit 201 and the moving contact unit 202, thereby ensuring the contact effect and avoiding problems such as oxidation and corrosion of the contact part 2 and the conductive rod 3 affecting the conduction.

[0041] It can be understood that the lower collar 5001 and the spacer 503 are both reciprocatingly slidable based on the axial direction of the conductive rod 3, and the lower collar 5001 and the spacer 503 can automatically be in a lowered position due to gravity (the switch body 1 is in a side-mounted state, and the conductive rod 3 is in a vertical state or an inclined state). In actual application, if the switch body 1 is in a flat-mounted state, the lower collar and the spacer 503 will not be in a lowered position due to gravity, and a positioning spring (not shown in the figure) can be installed on their bottom surface accordingly.

[0042] It should be noted that the conductive rod 3 is not entirely conductive, and the portion used to place the slider 401 and the portion below used for pulling are both insulated, while the upper portion is used to contact the stationary contact unit 201 and the moving contact unit 202 and can be conductive accordingly.

[0043] When in use, the conductive rod 3 is in an ascending state under the action of the first spring 402. At this time, the conductive rod 3 is in contact with both the static contact unit 201 and the moving contact unit 202, and the switch body 1 is in a closed state. When the switch body 1 needs to be switched to an open state, the guide rod can be pulled down for the first time to drive the slider 401 to synchronously descend and squeeze the first spring 402. At this time, the slider 401 contacts the upper ring 5001 and passes over the upper ring 5001. The slider 401 can first retract into the conductive rod 3 and then extend to reset; then release the conductive rod 3. Under the action of the first spring 402, the conductive rod 3 can drive the slider 401 to abut against the block 502. At this time, the conductive rod 3 is separated from both the static contact unit 201 and the moving contact unit 202.

[0044] When the switch body 1 needs to be switched to the closed state again, the guide rod is pulled down again to drive the slider 401 to descend, so that the slider 401 contacts with the lower ring 5001 and passes over the lower ring 5001. The slider 401 can also be retracted into the conductive rod 3 and then extended to reset; then the conductive rod 3 is released, and the conductive rod 3 drives the slider 401 to rise under the action of the first spring 402. At this time, the slider 401 can push the lower ring 5001 to rise until it fits with the upper ring 5001. The lower ring 5001 is blocked by the upper ring 5001 and cannot rise any further. Then the conductive rod 3 drives the slider 401 to continue to rise, and the slider 401 can be retracted into the conductive rod 3 again through the inclined surface 6 of the lower ring 5001. After retraction, the conductive rod 3 can continue to rise so that the slider 401 passes through the lower ring 5001 and the upper ring 5001 in sequence. Finally, the conductive rod 3 resumes the contact state with the static contact unit 201 and the moving contact unit 202.

[0045] To sum up, through the cooperation of structures such as the conductive rod 3, the slider 401, the first spring 402 and the ring 5001, pulling down the conductive rod 3 once can turn the switch body 1 to the open state, and can ensure the continuous stability of the open state. Pulling down the conductive rod 3 a second time can switch the switch body 1 to the open state, and can ensure reliable contact in the closed state; the overall operation is simple, and the switch body 1 can be switched between closed / open by simply pulling down the conductive rod 3, and the limit can be automatically achieved after pulling down, without the need to readjust the position of the conductive rod 3, which can effectively reduce the burden on the staff and improve the overall work efficiency; at the same time, the conductive rod 3 can be rotated regularly during use to change the contact area between the conductive rod 3 and the contact part 2, thereby ensuring the overall contact conduction effect, and the practicality is higher.

[0046] Embodiment 2:

[0047] See also Figures 1 to 8 On the basis of the first embodiment, considering the service life of the conductive rod 3 and other structures, the conductive rod 3 and other structures need to be regularly inspected and replaced, and the disassembly and assembly of the conductive rod 3 and the slider 401 and other structures still have certain troubles.

[0048] To this end, the switch body 1 is improved: at this time, the end cover 101 is movably installed at the bottom of the switch body 1, the first spring 402 is now against the end cover 101, the conductive rod 3 penetrates the end cover 101 and can be pulled up and down along the axial direction of the end cover 101, and the surface of the end cover 101 is provided with a sliding component 7 corresponding to the position of the slider 401 and engaged with the switch body 1. The sliding component 7 can realize automatic position limiting of the end cover 101 and the switch body 1, and when the conductive rod 3 drives the slider 401 to continue to be pulled down based on the position of the second pull-down, the third pull-down can make the slider 401 contact with the sliding component 7, thereby releasing the engagement state of the sliding component 7 and the switch body 1, and then releasing the position limiting state of the end cover 101 and the switch body 1.

[0049] Reference Figures 6 to 8 In this embodiment, preferably, the sliding assembly 7 includes a truncated table 701 and a clamping shaft 702 that are slidably matched with the end cover 101, a gear 703 is rotatably installed inside the end cover 101, and a tooth segment 704 that is transmission-connected to the gear 703 is fixedly installed on the outer surface of the ring and the surface of the clamping shaft 702. The truncated table 701 can be staggered with the clamping shaft 702, so that when the truncated table 701 is retracted into the end cover 101, the clamping shaft 702 can be driven to retract into the end cover 101 through the tooth segment 704 and the gear 703.

[0050] Correspondingly, a cavity 104 is provided inside the end cover 101 for accommodating the truncated table 701, the gear 703, the tooth segment 704 and the clamping shaft 702. The truncated table 701 can slide along the axial direction of the end cover 101 based on the cavity 104, and the clamping shaft 702 can slide along the radial direction of the end cover 101 based on the cavity 104. Correspondingly, a clamping groove 103 can be provided inside the switch body 1 for the clamping shaft 702 to engage with, and the shapes and sizes of the two are adapted.

[0051] Among them, a third spring 705 is fixedly installed between the bottom of the truncated cone 701 and the cavity wall of the cavity 104. Under the action of the third spring 705, the truncated cone 701 has a tendency to extend upward from the end cover 101, thereby making the clamping shaft 702 have a tendency to extend out of the end cover 101.

[0052] In this embodiment, the hollow interior of the ring allows the conductive rod 3 to pass completely through, and the slider 401 can be retracted into the conductive rod 3, so that it can pass through the two rings in sequence, so that the end cover 101 is released from the limit and removed, and the conductive rod 3 can be pulled down again to be pulled out of the switch body 1.

[0053] When in use, through the structures such as the conductive rod 3, the slider 401 and the first spring 402, the switch body 1 can be turned to the open state by pulling down the conductive rod 3 once, and the switch body 1 can be switched to the open state by pulling down the conductive rod 3 twice. The working process and effect of this part are the same as those in the first embodiment, and will not be repeated here. The difference is that when the conductive rod 3 is pulled down for the third time based on the position of the second pull-down, the conductive rod 3 can drive the slider 401 to release from the round table 701 and drive the round table 701 to retract into the end cover 101. At this time, the round table 701 drives the clamping shaft 702 to retract into the end cover 101 through the tooth segment 704 and the gear 703, thereby separating the clamping shaft 702 from the clamping groove 103 to release the limit state between the end cover 101 and the switch body 1. Then remove the end cover 101, and then pull down the conductive rod 3 again to extract the conductive rod 3 from the switch body 1, thereby realizing the inspection and replacement of the conductive rod 3 and the internal structure of the switch body 1.

[0054] Compared with the first embodiment, through the cooperation of the slider 401, the end cover 101, the truncated table 701 and the clamping shaft 702 and other structures, when the conductive rod 3 is pulled down for the third time based on the position of the second pull-down, the limit state between the end cover 101 and the switch body 1 can be automatically released, thereby facilitating the rapid disassembly and assembly of the end cover 101 and the conductive rod 3, which is conducive to the later maintenance and replacement of the conductive rod 3 and the internal structure of the switch body 1; at the same time, the operation is also simple, and only a simple pull-down action is required, which can ensure a reduced workload. The overall design is combined with the movement of the slider 401, which simplifies and speeds up the disassembly and assembly of the end cover 101 and the conductive rod 3, and is also conducive to improving the overall work efficiency and having stronger applicability.

[0055] Embodiment three:

[0056] See also Figures 1 to 9 On the basis of the second embodiment, considering that when the end cover 101 is assembled to the switch body 1, the switch body 1 does not have a specific position limit set inside, so that the end cover 101 may be installed too deep when it is installed to the switch body 1, and the clamping shaft 702 and the clamping groove 103 are staggered, thereby affecting the fast state of the end cover 101 and the switch body 1, and also affecting the overall work efficiency.

[0057] To this end, the switch body 1 is further improved: at this time, a boss 102 that fits with the top surface of the end cover 101 is fixedly installed on the inner wall of the switch body 1. When the end cover 101 is installed into the switch body 1, the end cover 101 can fit with the boss 102. At this time, the corresponding engagement of the clamping shaft 702 and the clamping groove 103 can be achieved by simply rotating the end cover 101.

[0058] The boss 102 can extend toward the contact part 2 based on the switch body 1, so that the top surface of the boss 102 is also against the lower ring 5001. At this time, the boss 102 is also used to support the lower ring 5001, so that the lower ring 5001 can rise based on this and cannot fall anymore.

[0059] Further, see Fig.10 The number of the card slots 103 can be increased accordingly, and the card slots 103 are arranged in a circular array, so that the end cover 101 only needs to be rotated a small degree to achieve the engagement between the end cover 101 and the body of the switch.

[0060] When in use, through the structures such as the conductive rod 3, the slider 401 and the first spring 402, the conductive rod 3 can be pulled down once to turn the switch body 1 to the off state, and the conductive rod 3 can be pulled down twice to switch the switch body 1 to the off state; through the structures such as the slider 401, the end cover 101 and the clamping shaft 702, the limit state between the end cover 101 and the switch body 1 can be automatically released when the conductive rod 3 is pulled down for the third time, thereby facilitating the rapid disassembly and assembly of the end cover 101 and the conductive rod 3. The working process and effect of this part are the same as those in the second embodiment, and will not be repeated here. The difference is that: during the later disassembly and assembly, the conductive rod 3 can be inserted into the switch body 1 first, and then the end cover 101 can be inserted so that it abuts against the boss 102, and then the end cover 101 is rotated so that the clamping shaft 702 is engaged with the clamping groove 103, so that the corresponding limit of the end cover 101 and the conductive rod 3 can be achieved.

[0061] Compared with the second embodiment, the coordination of the boss 102, the collar 5001 and the end cover 101 can facilitate the quick assembly and positioning of the end cover 101 and the corresponding placement of the collar 5001 below, thereby further improving the overall work efficiency and meeting more requirements in actual use.

Claims

1. A pull-out isolating switch, comprising a switch body, on which a contact part for wiring and a conductive rod corresponding to the contact part are arranged, characterized in that: A limit assembly is arranged between the conductive rod and the switch body, and an adjustment assembly corresponding to the position of the limit assembly is arranged inside the switch body; when the conductive rod is pulled down based on the switch body, the state of the conductive rod after being pulled down can be limited by the limit assembly and the adjustment assembly, and when the conductive rod continues to be pulled down based on the switch body, the conductive rod can be restored to its initial state by the limit assembly and the adjustment assembly.

2. The pull-out isolating switch according to claim 1, characterized in that: The limit assembly includes a slider that slidably cooperates with the conductive rod, a second spring is fixedly installed between the slider and the conductive rod, a first spring is fixedly installed on the bottom surface of the slider, and the first spring abuts against the inner bottom wall of the switch body, so that the slider has a tendency to move toward the contact part.

3. The pull-out isolating switch according to claim 2, characterized in that: The slider slides along the radial direction of the conductive rod, and the second spring makes the slider have a tendency to move outward of the conductive rod.

4. The pull-out isolating switch according to claim 2, characterized in that: The adjustment component comprises a base fixedly installed in the switch body, a stopper is fixedly installed on the base, a spacer is slidably installed on the base below the stopper, and inclined surfaces are arranged on the slider, the stopper and the spacer.

5. The pull-out isolating switch according to claim 4, characterized in that: The inclined surface on the slider is designed in the same direction as the inclined surface on the stopper, and the inclined surface on the stopper is designed in the opposite direction to the inclined surface on the spacer. The inclined surfaces on the spacer and the stopper are in a side V-shape as a whole, and the turning part of the V-shape points to the conductive rod.

6. The pull-out isolating switch according to claim 2, characterized in that: The adjustment assembly comprises two collars, the upper collar is fixedly connected to the inner wall of the switch body, and the lower collar is slidably installed in the switch body, and the slider and the two collars are both provided with inclined surfaces.

7. The pull-out isolating switch according to claim 6, characterized in that: The inclined surface of the upper ring is designed in the same direction as the inclined surface on the slider, and the inclined surfaces on the two rings are designed in opposite directions and are in a side V-shape as a whole, with the turning part of the V-shape pointing to the conductive rod.

8. The pull-out isolating switch according to any one of claims 2 to 7, characterized in that: An end cover is movably installed at the bottom of the switch body, and a sliding component corresponding to the position of the slider and engaged with the switch body is arranged on the surface of the end cover; when the conductive rod drives the slider to descend, the slider contacts the sliding component, and the engagement state between the sliding component and the switch body can be released.

9. The pull-out isolating switch according to claim 8, characterized in that: The sliding assembly includes a truncated table and a clamping shaft that slide with the end cover, a gear is rotatably installed inside the end cover, tooth segments connected to the gear transmission are fixedly installed on the surface of the circular ring and the surface of the clamping shaft, and a third spring is fixedly installed between the bottom of the truncated table and the end cover; when the truncated table retracts into the end cover, the clamping shaft can be driven to retract into the end cover through the tooth segments and the gears.

10. The pull-out isolating switch according to claim 9, characterized in that: The end cover has a cavity inside for accommodating the truncated table, gear, gear segment and clamping shaft. The truncated table can slide along the axial direction of the end cover based on the cavity, and the clamping shaft can slide along the radial direction of the end cover based on the cavity.

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