CN112071703B

CN112071703B - Power-off protection operating mechanism of isolating switch box

Info

Publication number: CN112071703B
Application number: CN202011037386.5A
Authority: CN
Inventors: 向亚飞; 陈宋文; 肖迪凡; 游万海
Original assignee: Hubei Chutian Electric Co ltd
Current assignee: Hubei Chutian Electric Co ltd
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2022-10-25
Anticipated expiration: 2040-09-28
Also published as: CN112071703A

Abstract

The invention discloses a power-off protection operating mechanism of an isolating switch box, which comprises a box body, wherein an opening of the box body is arranged on one side, a relay is fixedly connected on the inner wall of the other side of the box body, a first sliding groove is formed in the inner wall of the back surface of the box body, the first sliding groove is of an arc structure and is positioned in the same circle center as the switch rotating track of the relay, and a buffer mechanism is arranged in the first sliding groove. According to the invention, the first sliding groove with the buffering mechanism is formed in the inner wall of the box body, the buffering mechanism is connected to the switch of the relay through the pulling mechanism, the switch of the relay can push the first sliding plate of the buffering mechanism through the fixing plate of the pulling mechanism in the closing process of the switch of the relay, the first sliding plate can extrude the buffering spring through the pressing plate, the elastic force of the buffering spring buffers the rotation speed of the switch of the relay through the pressing plate, and the switch of the relay can be prevented from being directly contacted with the shell body and damaged.

Description

Power-off protection operating mechanism of isolating switch box

Technical Field

The invention relates to an operating mechanism, in particular to a power-off protection operating mechanism of an isolating switch box, and belongs to the technical field of operating mechanisms.

Background

The isolation switch box is also called as a switch box or a distribution board and is distribution equipment provided with the isolation switch, and relays are mostly arranged in the isolation switch box, so that power-off protection is conveniently carried out on each electronic device.

Relay when the closed circuit, because the elasticity of the switch of relay is great, can take place violent collision with the casing of relay when the switch is closed, when the number of times that the switch was closed is too much, the damage takes place easily for the relay switch, and the staff is when pulling the relay switch, mostly direct put the hand on the switch of relay, because the switch volume of relay is less, if staff's finger nail is longer, damage staff's finger nail easily during pulling, simultaneously if there is water or the foreign matter of other liquid forms of staff's hand, these foreign matters glue on the switch of relay easily, pollute and damage the relay.

Disclosure of Invention

The invention provides a power-off protection operating mechanism of an isolating switch box, which effectively solves the problems in the prior art.

In order to solve the technical problems, the invention provides the following technical scheme:

the invention relates to a power-off protection operating mechanism of an isolating switch box, which comprises a box body, wherein one side of the box body is provided with an opening, a relay is fixedly connected to the inner wall of the other side of the box body, a first sliding chute is formed in the inner wall of the back of the box body, the first sliding chute is of an arc structure and is positioned in the same circle center as the switch rotating track of the relay, a buffer mechanism is arranged in the first sliding chute, the buffer mechanism is connected to the switch of the relay through a pulling mechanism, a second sliding chute is transversely formed in the inner wall of the back of the box body and is positioned above the first sliding chute, a sliding mechanism is arranged on one side, far away from the relay, in the first sliding chute, the sliding mechanism is connected with a contraction mechanism, a first roller and two second rollers are rotatably connected to the inner wall of the back of the box body, on one side of the second sliding chute, close to the relay, the first roller and the two second rollers are positioned on the same vertical plane, a travel switch is fixedly connected to the inner wall of the upper end of the box body, an extrusion mechanism is arranged on the inner wall of the upper end of the travel switch, on one side of the travel switch, which is close to the relay, and is electrically connected with a travel switch, and is connected with a travel switch.

As a preferred technical scheme, the buffer mechanism comprises a positioning rod, the positioning rod is of an arc-shaped structure, two ends of the positioning rod are fixedly connected to the inner wall of a first sliding groove, a first sliding plate is sleeved and connected on the outer circumferential wall of the upper end of the positioning rod in a sliding mode, the first sliding plate is connected inside the first sliding groove in a sliding mode, the fixed rod is fixedly connected to the middle of the front face of the first sliding plate, a pressing plate is sleeved and connected on the outer circumferential wall of the lower end of the positioning rod in a sliding mode, the pressing plate is connected inside the first sliding groove in a sliding mode, a buffer spring is sleeved on the outer circumferential wall of part of the positioning rod at the lower end of the pressing plate, and the lower end of the buffer spring is fixedly connected to the inner wall of the first sliding groove.

According to a preferred technical scheme of the invention, the pulling mechanism comprises a fixed plate, the fixed plate is sleeved and fixedly connected to a fixed rod of the buffer mechanism, a connecting plate is fixedly connected to the upper end of the fixed plate, a fixed groove is formed in the lower end of the fixed plate, limiting grooves are formed in the inner walls of the two sides of the fixed groove, a first groove is formed in the inner wall of the upper end of the fixed groove, a fixed column is slidably connected to the inside of the fixed groove, limiting blocks are fixedly connected to the two sides of the fixed column, the limiting blocks are slidably connected to the insides of the limiting grooves on the same side, a clamping plate is fixedly connected to the lower end of the fixed column, the clamping plate is in a U-shaped structure, the opening of the clamping plate faces downwards, and the lower end of the clamping plate is clamped on a switch of the relay.

As a preferred technical scheme of the invention, a second groove is formed in the upper end of the fixing column, a spring telescopic rod is fixedly connected inside the second groove, and the upper end of the spring telescopic rod is fixedly connected inside the first groove.

As a preferred technical solution of the present invention, the sliding mechanism includes a second sliding plate, a back surface of the second sliding plate is slidably connected inside a second sliding groove, a plurality of teeth are fixedly connected to a middle portion of an upper end of the second sliding plate at equal intervals in a transverse direction, a mounting groove is formed in a middle portion of one side of the second sliding plate close to the relay, a first winding roller is rotatably connected inside the mounting groove, a first connecting rope is wound around the first winding roller, one end of the first connecting rope, which is far away from the first winding roller, is fixedly connected to a connecting plate of the wrenching mechanism, and a middle portion of the first connecting rope is slidably connected to the first roller and between the two second rollers.

As a preferable technical scheme of the invention, the back surfaces of the upper end and the lower end of the second sliding plate are transversely and fixedly connected with limiting strips, and the limiting strips are all connected in the inner wall of the second sliding groove in a sliding manner.

As a preferable technical scheme of the invention, the retraction mechanism comprises a mounting plate, the mounting plate is of a concave structure, the opening of the mounting plate faces the relay, the inner walls of the upper end and the lower end of the mounting plate are fixedly connected with a spring plate, the inner parts of the spring plates are fixedly connected with rotating shafts, a second winding roller is fixedly connected between the rotating shafts together, a second connecting rope is wound on the second winding roller, and one end of the second connecting rope, which is far away from the second winding roller, is fixedly connected to a second sliding plate of the sliding mechanism.

As a preferred technical scheme of the invention, the extrusion mechanism comprises a fixed pipe, the fixed pipe is vertically and fixedly connected to the inner wall of the upper end of the box body, the opening of the fixed pipe faces downward, a through groove is vertically formed in the side wall of the fixed pipe, which is away from the relay, on the inner wall of the upper end of the fixed pipe, a threaded support rod is rotatably connected to the inner wall of the upper end of the fixed pipe, the lower end of the threaded support rod is located outside the fixed pipe, a gear is fixedly connected to the lower end of the threaded support rod, the gear is meshed with teeth of the sliding mechanism, a threaded plate is sleeved on the circumferential outer wall of the lower end of the part, which is located inside the fixed pipe, the threaded plate is slidably connected to the inside of the fixed pipe, a pressing plate is fixedly connected to the side, which is away from the relay, one side of the pressing plate, which is away from the threaded plate, penetrates through the through groove and extends to the outside of the fixed pipe, and the part, which is located outside the fixed pipe, is located right below the travel switch.

The invention has the following beneficial effects:

1. according to the invention, the first sliding groove with the buffering mechanism is formed in the inner wall of the box body, the buffering mechanism is connected to the switch of the relay through the pulling mechanism, in the process of closing the switch of the relay, the switch of the relay pushes the first sliding plate of the buffering mechanism through the fixing plate of the pulling mechanism, the first sliding plate extrudes the buffering spring through the pressing plate, the elastic force of the buffering spring buffers the rotation speed of the switch of the relay through the pressing plate, and the switch of the relay is prevented from being directly contacted with the shell and damaged.

2. Meanwhile, the fixed plate is connected with the switch of the relay through the clamping plate, when the worker pulls the switch of the relay, the worker can grasp the connecting plate arranged on the fixed plate and then pull the switch of the relay through the fixed plate and the clamping plate, and the fingernail of the worker is prevented from being damaged.

3. Meanwhile, when the staff pulls the switch of the relay, the relay is pulled through the fixing plate and the clamping plate and is not in direct contact with the switch of the relay, so that water and other liquid foreign matters on the hands of the staff can be prevented from being stuck on the relay, and the relay is prevented from being damaged.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a view of the area A in FIG. 1;

FIG. 3 is a schematic view of the structure of the damper mechanism of the present invention;

FIG. 4 is a schematic structural view of the pulling mechanism of the present invention;

FIG. 5 is a schematic view of a second chute of the present invention;

FIG. 6 is a schematic view of the construction of the skateboard of the present invention;

FIG. 7 is a schematic view of the retraction mechanism of the present invention;

fig. 8 is a schematic view of the internal structure of the fixing tube of the present invention.

In the figure: 1. a box body; 2. a relay; 3. a first chute; 4. a buffer mechanism; 41. positioning a rod; 42. A first slide plate; 43. pressing a plate; 44. a buffer spring; 45. fixing the rod; 5. a pulling mechanism; 51. a fixing plate; 52. a connecting plate; 53. fixing grooves; 54. a limiting groove; 55. a first groove; 56. fixing a column; 57. a second groove; 58. a spring telescopic rod; 59. a limiting block; 510. a splint; 6. a second chute; 7. a sliding mechanism; 71. a second slide plate; 72. teeth; 73. a limiting strip; 74. mounting grooves; 75. a first winding roller; 76. a first connecting rope; 8. a retracting mechanism; 81. mounting a plate; 82. a spring plate; 83. a rotating shaft; 84. a second winding roller; 85. a second connecting rope; 9. an extrusion mechanism; 91. a fixed tube; 92. a through groove; 93. a threaded strut; 94. a thread plate; 95. a pressing plate; 96. a gear; 10. a travel switch; 11. an alarm lamp; 12. a first roller; 13. a second roller.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment is as follows: as shown in fig. 1-8, the power-off protection operating mechanism of the disconnecting switch box of the invention comprises a box body 1, one side of the opening of the box body 1 is arranged, a relay 2 is fixedly connected to the inner wall of the other side of the box body 1, a first chute 3 is arranged on the inner wall of the back surface of the box body 1, the first chute 3 is of an arc structure and is positioned at the same circle center with the switch rotation track of the relay 2, a buffer mechanism 4 is arranged inside the first chute 3, the buffer mechanism 4 is connected to the switch of the relay 2 through a pulling mechanism 5, a second chute 6 is transversely arranged on the inner wall of the back surface of the box body 1, the second chute 6 is positioned above the first chute 3, and a sliding mechanism 7 is arranged on one side of the inside of the first chute 3, which is far away from the relay 2, slide mechanism 7 is connected with shrink mechanism 8, second spout 6 rotates on being close to one side part box 1 back inner wall of relay 2 and is connected with a first gyro wheel 12 and two second gyro wheels 13, first gyro wheel 12 and two second gyro wheels 13 are located same vertical plane, fixedly connected with travel switch 10 on the upper end inner wall of box 1, travel switch 10 installs extrusion mechanism 9 on being close to one side part box 1 upper end inner wall of relay 2, extrusion mechanism 9 and slide mechanism 7 are connected, fixedly connected with alarm lamp 11 on the upper end outer wall of box 1, alarm lamp 11 and travel switch 10 electric connection, during the use, warn people relay 2 through alarm lamp 11 and be in the closed condition, make things convenient for the staff to maintain timely circuit.

Wherein, buffer gear 4 includes locating lever 41, locating lever 41 is arc structure and the equal fixed connection in both ends on the inner wall of first spout 3, the cover is established and sliding connection has first slide 42 on the upper end circumference outer wall of locating lever 41, first slide 42 sliding connection is in the inside of first spout 3, the positive middle part fixedly connected with dead lever 45 of first slide 42, the cover is established and sliding connection has clamp plate 43 on the lower extreme circumference outer wall of locating lever 41, clamp plate 43 sliding connection is in the inside of first spout 3, the cover is equipped with buffer spring 44 on the part locating lever 41 circumference outer wall of clamp plate 43 lower extreme, buffer spring 44's lower extreme fixed connection is on the inner wall of first spout 3, utilizes buffer spring 44's elasticity extrusion clamp plate 43, cushions the impact force when sliding first slide 42, avoids relay 2's switch and casing to take place violent collision and appear damaging.

The pulling mechanism 5 includes a fixed plate 51, the fixed plate 51 is sleeved on and fixedly connected to the fixed rod 45 of the buffer mechanism 4, the upper end of the fixed plate 51 is fixedly connected with a connecting plate 52, the lower end of the fixed plate 51 is provided with a fixed groove 53, the inner walls of the two sides of the fixed groove 53 are provided with limit grooves 54, the inner wall of the upper end of the fixed groove 53 is provided with a first groove 55, the inside of the fixed groove 53 is slidably connected with a fixed column 56, the two sides of the fixed column 56 are fixedly connected with limit blocks 59, the limit blocks 59 are slidably connected inside the limit grooves 54 on the same side, the upper end of the fixed column 56 is provided with a second groove 57, the inside of the second groove 57 is fixedly connected with a spring telescopic rod 58, the upper end of the spring telescopic rod 58 is fixedly connected inside the first groove 55, the lower end of the fixed column 56 is fixedly connected with a clamp plate 510, the clamp plate 510 is of a U-shaped structure and has a downward opening, the lower end of the clamp plate 510 is clamped to the switch of the relay 2, the relay 2 and the switch can be conveniently connected with the clamp plate 510 and the fixed plate 51, so that a worker can pull the relay 2 and can protect the switch and avoid damage of the relay 2.

The sliding mechanism 7 includes a second sliding plate 71, the back of the second sliding plate 71 is slidably connected inside the second sliding groove 6, the back of the upper end and the back of the lower end of the second sliding plate 71 are transversely and fixedly connected with limiting strips 73, the limiting strips 73 are slidably connected inside the inner wall of the second sliding groove 6, the middle of the upper end of the second sliding plate 71 is transversely and fixedly connected with a plurality of teeth 72 at equal intervals, a mounting groove 74 is formed in the middle of one side, close to the relay 2, of the second sliding plate 71, the inside of the mounting groove 74 is rotatably connected with a first winding roller 75, a first connecting rope 76 is wound on the first winding roller 75, one end, far away from the first winding roller 75, of the first connecting rope 76 is fixedly connected to the connecting plate 52 of the wrench mechanism 5, the middle of the first connecting rope 76 is slidably connected to the first roller 12 and between the two second rollers 13, and during operation, the second sliding plate 71 is driven by the teeth 72 to extrude the mechanism 9 while sliding, so that the relay 2 is convenient to close and the alarm lamp 11 is turned on.

The pressing mechanism 9 includes a fixed pipe 91, the fixed pipe 91 is vertically and fixedly connected to the inner wall of the upper end of the box body 1, an opening of the fixed pipe 91 faces downward, a through groove 92 is vertically formed in a side wall, away from the relay 2, of the fixed pipe 91, a threaded support rod 93 is connected to the inner wall of the upper end of the fixed pipe 91 in a rotating mode, the lower end of the threaded support rod 93 is located outside the fixed pipe 91, a gear 96 is fixedly connected to the lower end of the threaded support rod 93, the gear 96 is meshed with the teeth 72 of the sliding mechanism 7, a threaded plate 94 is sleeved on the outer wall of the circumference of the lower end of the portion, located inside the fixed pipe 91, of the threaded support rod 93 and is connected to the inside of the fixed pipe 91 in a sliding mode, a pressing plate 95 is fixedly connected to one side, away from the relay 2, of the threaded plate 94, one side, away from the pressing plate 94, of the pressing plate 95 penetrates through the through groove 92 and extends to the outside of the fixed pipe 91, the portion, located outside of the fixed pipe 91 is located right below the travel switch 10, the rotating support rod 93 through the gear 96, the pressing plate 94, the pressing plate 95 is used for conveniently opening and closing the travel switch 10, and opening the relay 2.

Wherein, shrink mechanism 8 includes mounting panel 81, mounting panel 81 is spill structure and opening towards relay 2, equal fixedly connected with spring plate 82 in mounting panel 81's the upper and lower end inner wall, the equal fixedly connected with pivot 83 of inside of spring plate 82, common fixedly connected with second wire winding roller 84 between the pivot 83, the wire-wrapping has the second to connect rope 85 on the second wire winding roller 84, the second is connected the one end fixed connection that second wire winding roller 84 was kept away from to rope 85 and is on slide mechanism 7's second slide 71, and when opening relay 2, accessible spring plate 82 rotates second wire winding roller 84, makes things convenient for the automatic rolling second to connect rope 85, pulls back original position with slide mechanism 7 simultaneously.

Specifically, when the present invention is used, the present invention is fixed in a working place, a power supply is turned on, when the relay 2 detects that a connected circuit has a fault, the switch of the relay 2 is automatically turned off, during the turning off, the switch of the relay 2 rotates the clamp plate 510 and the fixed plate 51, and simultaneously the first slide plate 42 is pulled by the clamp plate 510 and the fixed plate 51, so that the first slide plate 42 slides inside the first chute 3, when the fixed plate 51 rotates to a certain angle, the connecting plate 52 installed on the fixed plate 51 pulls the second slide plate 71 through the first connecting rope 76, so that the second slide plate 71 slides inside the second chute 6, and the second slide plate 71 pulls the second connecting rope 85, the second connecting rope 85 pulls the second winding roller 84 to rotate, the second winding roller 84 continuously contracts the spring plate 82, when the tooth 72 installed on the second slide plate 71 contacts with the gear 96, will toggle gear 96, and rotate threaded support rod 93 through gear 96, threaded support rod 93 moves upward through threaded plate 94 and presses down board 95, when first slide 42 slides to the inside lower extreme of first spout 3, can extrude buffer spring 44 through clamp plate 43, buffer spring 44 extrudees first slide 42 through clamp plate 43 backward, the impact force that produces when the switch of relay 2 rotates is cushioned, avoid the impact force too big, the switch and the casing of relay 2 appear damaging, when the switch of relay 2 closes completely, press board 95 will be supported on travel switch 10 at this moment, travel switch 10 starts alarm lamp 11, warn people that relay 2 is in the state of closing, when the staff opens relay 2, the staff can catch connecting plate 52, pull the switch of relay 2 back to original position, can prevent to damage staff's finger nail when pulling, prevent simultaneously that the water on the staff hand and the foreign matter of other liquid forms from gluing on relay 2, damage relay 2, in this process, clockwork spring 82 reverse rotation second wire winding roller 84, second wire winding roller 84 rolling second connects rope 85, second is connected rope 85 and is drawn back original position with second slide 71, second slide 71 passes through tooth 72 reverse rotation gear 96 simultaneously, gear 96 then reverse rotation screw thread branch 93, the pressing plate 95 descends, when pressing plate 95 and leaving travel switch 10, alarm lamp 11 closes.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A power-off protection operating mechanism of an isolating switch box comprises a box body (1) and is characterized in that an opening of the box body (1) is arranged on one side, a relay (2) is fixedly connected to the inner wall of the other side of the box body (1), a first sliding groove (3) is formed in the inner wall of the back face of the box body (1), the first sliding groove (3) is of an arc-shaped structure and located in the same circle center with the switch rotating track of the relay (2), a buffering mechanism (4) is installed inside the first sliding groove (3), the buffering mechanism (4) is connected to a switch of the relay (2) through a pulling mechanism (5), a second sliding groove (6) is transversely formed in the inner wall of the back face of the box body (1), the second sliding groove (6) is located above the first sliding groove (3), a sliding mechanism (7) is installed on the side, far away from the relay (2), inside the first sliding groove (3), the sliding mechanism (7) is connected with a contraction mechanism (8), a first roller (12) and two rollers (12) are connected to the inner wall of the back face of the second sliding groove (6), the portion, close to the relay (2), the inner wall of the back face of the first roller (1) is connected with two rollers (13), and two rollers (12) are perpendicular to the opening end of the second roller (13), and the second roller (10) are connected to the inner wall of the box body, install extrusion mechanism (9) on travel switch (10) one side part box (1) upper end inner wall near relay (2), extrusion mechanism (9) and slide mechanism (7) are connected, fixedly connected with alarm lamp (11) on the upper end outer wall of box (1), alarm lamp (11) and travel switch (10) electric connection.

2. The power-off protection operating mechanism of the disconnecting switch box according to claim 1, wherein the buffer mechanism (4) comprises a positioning rod (41), the positioning rod (41) is of an arc-shaped structure, two ends of the positioning rod are fixedly connected to the inner wall of the first sliding groove (3), a first sliding plate (42) is sleeved and slidably connected to the outer wall of the circumference of the upper end of the positioning rod (41), the first sliding plate (42) is slidably connected to the inside of the first sliding groove (3), a fixing rod (45) is fixedly connected to the middle of the front surface of the first sliding plate (42), a pressing plate (43) is sleeved and slidably connected to the outer wall of the circumference of the lower end of the positioning rod (41), the pressing plate (43) is slidably connected to the inside of the first sliding groove (3), a buffer spring (44) is sleeved on the outer wall of the circumference of a part of the positioning rod (41) at the lower end of the pressing plate (43), and the lower end of the buffer spring (44) is fixedly connected to the inner wall of the first sliding groove (3).

3. The power-off protection operating mechanism of the isolating switch box according to claim 1, wherein the pulling mechanism (5) comprises a fixing plate (51), the fixing plate (51) is sleeved and fixedly connected to a fixing rod (45) of the buffer mechanism (4), a connecting plate (52) is fixedly connected to an upper end of the fixing plate (51), a fixing groove (53) is formed in a lower end of the fixing plate (51), limiting grooves (54) are formed in inner walls of two sides of the fixing groove (53), a first groove (55) is formed in an inner wall of an upper end of the fixing groove (53), a fixing column (56) is slidably connected to an inner portion of the fixing groove (53), limiting blocks (59) are fixedly connected to two sides of the fixing column (56), the limiting blocks (59) are slidably connected to the inner portion of the limiting groove (54) on the same side, a clamping plate (510) is fixedly connected to a lower end of the fixing column (56), the clamping plate (510) is of a U-shaped structure and has a downward opening, and a lower end of the clamping plate (510) is clamped to a switch of the relay (2).

4. The power-off protection operating mechanism of the disconnecting switch box according to claim 3, wherein a second groove (57) is formed in the upper end of the fixing column (56), a spring telescopic rod (58) is fixedly connected inside the second groove (57), and the upper end of the spring telescopic rod (58) is fixedly connected inside the first groove (55).

5. The power-off protection operating mechanism of the disconnecting switch box according to claim 1, wherein the sliding mechanism (7) comprises a second sliding plate (71), the back surface of the second sliding plate (71) is slidably connected inside the second sliding groove (6), a plurality of teeth (72) are fixedly connected to the middle of the upper end of the second sliding plate (71) at equal intervals, a mounting groove (74) is formed in the middle of one side, close to the relay (2), of the second sliding plate (71), a first winding roller (75) is rotatably connected to the inside of the mounting groove (74), a first connecting rope (76) is wound on the first winding roller (75), one end, far away from the first winding roller (75), of the first connecting rope (76) is fixedly connected to the connecting plate (52) of the pulling mechanism (5), and the middle of the first connecting rope (76) is slidably connected to the first roller (12) and between the two second rollers (13).

6. The power-off protection operating mechanism of the isolating switch box according to claim 5, characterized in that the back surfaces of the upper and lower ends of the second sliding plate (71) are transversely and fixedly connected with limit strips (73), and the limit strips (73) are slidably connected in the inner wall of the second sliding groove (6).

7. The power-off protection operating mechanism of the disconnecting switch box is characterized in that the contracting mechanism (8) comprises a mounting plate (81), the mounting plate (81) is of a concave structure and is opened towards the relay (2), spring plates (82) are fixedly connected to the inner walls of the upper end and the lower end of the mounting plate (81), rotating shafts (83) are fixedly connected to the inner portions of the spring plates (82), second winding rollers (84) are fixedly connected between the rotating shafts (83) together, second connecting ropes (85) are wound on the second winding rollers (84), and one ends, far away from the second winding rollers (84), of the second connecting ropes (85) are fixedly connected to a second sliding plate (71) of the sliding mechanism (7).

8. The power-off protection operating mechanism of the isolating switch box according to claim 1, the extrusion mechanism (9) comprises a fixed pipe (91), the fixed pipe (91) is vertically and fixedly connected to the inner wall of the upper end of the box body (1), the opening of the fixed pipe (91) faces downwards, a through groove (92) is vertically arranged on the side wall of one side of the fixed pipe (91) far away from the relay (2), the inner wall of the upper end of the fixed pipe (91) is rotationally connected with a threaded support rod (93), the lower end of the threaded support rod (93) is positioned outside the fixed pipe (91), the lower end of the threaded support rod (93) is fixedly connected with a gear (96), the gear (96) is meshed with the teeth (72) of the sliding mechanism (7), the outer wall of the circumference of the lower end of the part of the threaded support rod (93) positioned in the fixed pipe (91) is sleeved and connected with a threaded plate (94) in a threaded manner, the thread plate (94) is connected in a sliding way inside the fixed pipe (91), one side of the threaded plate (94) far away from the relay (2) is fixedly connected with a pressing plate (95), one side of the pressing plate (95) far away from the thread plate (94) penetrates through the through groove (92) and extends to the outside of the fixed pipe (91), the part of the pressing plate (95) positioned outside the fixed tube (91) is positioned right below the travel switch (10).