Manual operation mechanical interlocking structure applied to high-voltage switch operating mechanism

Abstract

The utility model discloses a manual operation mechanical interlocking structure applied to a high-voltage switch operating mechanism, which comprises an inner support, a manual operation port is arranged on the side wall of the inner support, a sliding plate is slidably connected on one side wall of the inner support, a shielding part is fixed on the side wall of the sliding plate, and a switching rod is rotatably connected in the inner support. The side wall of the inner support is connected with an unlocking plate in a sliding mode through a first spring, the unlocking plate is provided with a locking groove used for fixing and locking the switching rod, the switching rod rotates to the position over the locking groove, at the moment, the shielding part blocks the manual operation opening, then the first spring elastically presses the unlocking plate upwards, the switching rod is locked in the locking groove, and therefore the manual operation opening is blocked. In this state, the fixing and locking function is achieved, the influence of external factors such as accidental touch and vibration is avoided, and the stability and safety of a power transmission and distribution system are improved.

Description

Technical Field

[0001] The utility model relates to a manually operated mechanical interlocking structure applied to a high-voltage switch operating mechanism, belonging to the technical field of high-voltage power transmission and distribution. Background Art

[0002] The manual operation mechanical interlocking structure is one of the important links of safety control of high-voltage power transmission and distribution intelligent control system, which is called the shield part. The shield part is a necessary structural component of the operating mechanism. The existing technical products of the manual operation mechanical interlocking structure are as follows: Fig. 9 As shown, the process is as follows: during manual operation, first move the shutter, which drives the micro switch to change state, thereby disconnecting the electric circuit and actuating the interlocking coil; when the manual operation is completed, pull out the operating handle, the reset spring drives the shutter to automatically reset, the electric circuit is reconnected, and the interlocking coil is released.

[0003] The above structure has the following disadvantages: in the case of accidental contact or vibration, the state of the micro switch in the above structure will change due to the malfunction of the shutter, thereby causing the erroneous phenomenon of cutting off the electric control circuit. In view of this, a manually operated mechanical interlocking structure applied to the high-voltage switch operating mechanism is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a manually operated mechanical interlocking structure applied to a high voltage switch operating mechanism, so as to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a manually operated mechanical interlocking structure applied to a high-voltage switch operating mechanism, comprising:

[0006] An inner bracket, wherein a manual operation opening is provided on a side wall of the inner bracket for inserting a manual crank into the inner bracket;

[0007] A slide plate, the slide plate is slidably connected to a side wall of the inner bracket on which a manual operation opening is provided, and a shielding portion for shielding the manual operation opening is fixed on the side wall of the slide plate;

[0008] A switching rod, the switching rod is rotatably connected to the inside of the inner bracket, and one end of the switching rod passes through the through hole on the slide plate and extends to the outside of the inner bracket;

[0009] An unlocking plate, which is slidably connected to the side wall of the inner bracket through a first spring, the sliding direction of the unlocking plate is perpendicular to the sliding direction of the slide, the unlocking plate is provided with a locking groove for fixing the locking switch rod, and a pressing plate extending to the outside of the inner bracket is fixed on the side wall of the unlocking plate.

[0010] Preferably, a manually operated mechanical interlocking structure applied to a high voltage switch operating mechanism further comprises:

[0011] A second waist groove, wherein the second waist groove is provided on the slide plate;

[0012] An interlocking coil, wherein the interlocking coil is fixed on the inner bracket, and an output end of the interlocking coil is connected to a locking block that is movably engaged in the second waist groove;

[0013] a protrusion, wherein the protrusion is fixed on the slide plate;

[0014] The first micro switch is fixed on the inner bracket, and the contact of the first micro switch is in rolling contact with the protrusion.

[0015] Preferably, a second micro switch is fixedly mounted on the side wall of the inner bracket, the second micro switch is electrically connected to the remote platform, and a trigger plate for triggering the second micro switch is fixed on the unlocking plate.

[0016] Preferably, a fixing column is fixed inside the inner bracket, a reset rod is rotatably connected to the fixing column, one end of the reset rod is rotatably connected to the switching rod, and the other end of the reset rod is connected to the side wall of the inner bracket through a tension spring.

[0017] Preferably, a column is provided inside the inner bracket, the inner end of the switch rod is rotatably connected to the column, and the switch rod can rotate around the column within the inner bracket at a certain angle.

[0018] Preferably, the inner bracket is provided with guide columns for guiding the sliding of the unlocking plate, and there are multiple guide columns. The unlocking plate is slidably sleeved on the multiple guide columns, and each guide column is sleeved with a first spring for sliding and resetting the unlocking plate.

[0019] Preferably, a guide plate is fixedly connected to the side wall of the inner bracket, and a sliding groove for the switching rod and the pressing plate to slide is provided on the side wall of the guide plate.

[0020] Preferably, at least two fixing bolts are engaged and connected on the side wall of the inner bracket, threaded holes for the fixing bolts to engage are provided on the side wall of the inner bracket, and a first waist groove for the fixing bolts to pass through is provided on the side wall of the slide plate.

[0021] Compared with existing technologies:

[0022] The utility model rotates the switching rod to the top of the lock slot, at which time the shielding portion blocks the manual operation port, and then the first spring presses the unlocking plate upward, and the switching rod is locked inside the lock slot. In this state, it has a fixed locking function, avoids being affected by external factors such as accidental contact and vibration, and improves the stability and safety of the power transmission and distribution system. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1The structure of the utility model is shown in FIG. Figure 1 ;

[0024] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0025] Figure 3 The structure diagram of the switch lever, unlocking plate and reset pull rod of the utility model is shown in FIG. Figure 1 ;

[0026] Figure 4 The structure diagram of the switch lever, unlocking plate and reset pull rod of the utility model is shown in FIG. Figure 2 ;

[0027] Figure 5 It is a structural schematic diagram of the slide plate and the switch rod of the utility model;

[0028] Figure 6 It is a structural schematic diagram of the switch lever and the unlocking plate of the utility model;

[0029] Figure 7 It is a structural schematic diagram of the inner bracket, the slide plate and the switch lever of the utility model;

[0030] Figure 8 It is a structural schematic diagram of the inner bracket, the slide plate, the protrusion and the first micro switch of the utility model;

[0031] Fig. 9 It is a schematic diagram of the prior art of the utility model;

[0032] Fig.10 It is a schematic diagram of the use state of the utility model.

[0033] In the figure: 1. inner bracket, 101. manual operation port, 2. slide plate, 201. shielding part, 202. through hole, 203. first waist groove, 204. second waist groove, 205. protrusion, 3. switching lever, 4. unlocking plate, 401. lock groove, 402. pressing plate, 403. trigger plate, 5. first spring, 6. fixing bolt, 7. interlocking coil, 701. locking block, 8. first micro switch, 9. second micro switch, 10. fixing column, 11. reset rod, 12. tension spring, 13. column, 14. guide column, 15. guide plate. DETAILED DESCRIPTION

[0034] The present invention is described below with specific embodiments, but is not intended to be a limitation of the present invention.

[0035] Embodiment 1

[0036] like Figure 1-Figure 8 , Fig.10As shown, in this embodiment, a manually operated mechanical interlocking structure applied to a high-voltage switch operating mechanism is provided, including an inner bracket 1, a manual operating port 101 for inserting a manual crank into the inner bracket 1 is provided on the side wall of the inner bracket 1, and an electric operating device is arranged inside the inner bracket 1, for example: the electric operating device is a worm, one end of the worm is a manual operating end, and the manual operating end is directly opposite to the manual operating port 101. When the manual crank is inserted from the manual operating port 101, the manual crank cooperates with the manual operating end of the worm to realize the rotation of the manually operated worm; a slide plate 2 is slidably connected to a side wall of the inner bracket 1 on one side of which the manual operating port 101 is provided, and a shielding portion 201 for shielding the manual operating port 101 is fixed on the side wall of the slide plate 2, as shown in FIG. Figure 1 , Figure 2 As shown, the shielding portion 201 and the slide plate 2 are integrally formed. When the slide plate 2 slides on the side wall of the inner bracket 1, the shielding portion 201 can slide with the slide plate 2. When the shielding portion 201 slides onto the manual operation port 101, it can shield the manual operation port 101. When the shielding portion 201 slides to one side of the manual operation port 101, the manual operation port 101 leaks out. The inner bracket 1 is rotatably connected with a switching rod 3, and one end of the switching rod 3 passes through the through hole 202 on the slide plate 2 and extends to the outside of the inner bracket 1, as shown in FIG. Figure 5 As shown, by bending one end of the switching rod 3 extending to the outside of the inner bracket 1, the switching rod 3 is swung, and at this time the switching rod 3 will contact the side wall of the through hole 202 and generate thrust, thereby driving the slide plate 2 to slide on the side wall of the inner bracket 1, and the width of the through hole 202 is greater than the width of the switching rod 3, so that the switching rod 3 can swing in the through hole 202; an unlocking plate 4 is slidably connected to the side wall of the inner bracket 1 through a first spring 5, and the sliding direction of the unlocking plate 4 is perpendicular to the sliding direction of the slide plate 2, and a locking groove 401 for fixing and locking the switching rod 3 is provided on the unlocking plate 4, and a pressing plate 402 extending to the outside of the inner bracket 1 is fixed on the side wall of the unlocking plate 4.

[0037] like Figure 1 , Figure 5 As shown, the state where the blocking portion 201 blocks the manual operation opening 101 (i.e., the state where the unlocking plate 4 fixes and locks the switching rod 3) is: the switching rod 3 rotates to the top of the locking groove 401, at which time the blocking portion 201 blocks the manual operation opening 101, and then the first spring 5 presses the unlocking plate 4 upward, and the switching rod 3 is locked inside the locking groove 401. In this state, it has a fixed locking function;

[0038] The unlocking process is: pressing the pressing plate 402, at which time the unlocking plate 4 compresses the first spring 5 to slide, and at this time, the switching rod 3 disengages from the locking groove 401. In this state, the switching rod 3 is toggled, and the switching rod 3 can rotate in the inner bracket 1. During the rotation, the switching rod 3 drives the slide plate 2 to slide, and the slide plate 2 will drive the blocking part 201 to slide, and then the blocking part 201 is slid to the side of the manual operation port 101, and the manual operation port 101 leaks out.

[0039] In addition, if Fig.10 As shown, the inner bracket 1 is installed inside the chassis, and an operation window is provided on the side wall of the chassis and directly opposite to the manual operation port 101. An openable cover is provided on the operation window. After the cover is opened, the unlocking process and manual operation of the worm rotation and other operations are performed from the operation window.

[0040] like Figure 2-Figure 4 As shown, in order to reset the switch rod 3, a fixed column 10 is fixed inside the inner bracket 1, and a reset rod 11 is rotatably connected to the fixed column 10. One end of the reset rod 11 is rotatably connected to the switch rod 3, and the other end of the reset rod 11 is connected to the side wall of the inner bracket 1 through a tension spring 12. Figure 4 As shown, the reset rod 11 is in a U shape, and a ring groove is provided on the side wall of the fixed column 10. The reset rod 11 rotates on the fixed column 10 through the ring groove, and when the switch rod 3 rotates and drives the slide plate 2 with the shielding portion 201 to Figure 2 In the state shown, the reset pull rod 11 rotates on the fixed column 10, and the tension spring 12 is stretched and deformed. When the switch rod 3 is released, the tension spring 12 can quickly reset the switch rod 3.

[0041] A column 13 is provided inside the inner bracket 1 , and the inner end of the switch rod 3 is rotatably connected to the column 13 . The switch rod 3 can rotate around the column 13 within the inner bracket 1 at a certain angle.

[0042] like Figure 3 , Figure 6 As shown, the inner bracket 1 is provided with a guide column 14 for guiding the sliding of the unlocking plate 4, and the number of the guide columns 14 is multiple, for example, the number of the guide columns 14 is two, the unlocking plate 4 is slidably sleeved on the multiple guide columns 14, and each guide column 14 is sleeved with a first spring 5 for sliding and resetting the unlocking plate 4.

[0043] A guide plate 15 is fixedly connected to the side wall of the inner bracket 1 , and a sliding groove for the switching rod 3 and the pressing plate 402 to slide is provided on the side wall of the guide plate 15 .

[0044] Embodiment 2

[0045] like Figure 7 , Figure 8As shown, on the basis of the first embodiment, this embodiment further includes a second waist groove 204, a protrusion 205, an interlocking coil 7 and a first micro switch 8, the second waist groove 204 is provided on the slide plate 2; the interlocking coil 7 is fixed on the inner bracket 1, and the output end of the interlocking coil 7 is connected to a locking block 701 that is movably clamped in the second waist groove 204; the protrusion 205 is fixed on the slide plate 2; the first micro switch 8 is fixed on the inner bracket 1, and the contact of the first micro switch 8 is in rolling contact with the protrusion 205;

[0046] During manual operation, the slide plate 2 is first moved to slide with the shielding portion 201, and the slide plate 2 also slides with the protrusion 205, so that the protrusion 205 triggers the contact of the first micro switch 8, and the state of the first micro switch 8 changes, thereby realizing the disconnection of the electric circuit (the electric circuit of the electric operating device, the first micro switch 8 is electrically connected with the electric circuit of the electric operating device and the interlocking coil 7) and the action of the interlocking coil 7. When the manual operation is finished, the operating handle is pulled out, the slide plate 2 slides and resets with the shielding portion 201, the electric circuit is reconnected, and the interlocking coil 7 is released. At this time, the locking block 701 slides into the second waist groove 204 again;

[0047] like Figure 8 As shown, the contacts of the first micro switch 8 include a rotating rod, a roller and a compression spring. The rotating rod is rotatably connected to the first micro switch 8 through the compression spring, and the roller is rotatably connected to the rotating rod. When the slide plate 2 slides on the inner bracket 1, the roller rolls on the protrusion 205. The cooperation between the protrusion 205 and the roller can make the rotating rod rotate. The rotation of the rotating rod indicates that the first micro switch 8 has undergone a state change.

[0048] like Figure 1 , Figure 2 As shown, a second micro switch 9 is fixedly mounted on the side wall of the inner bracket 1, and the second micro switch 9 is electrically connected to the remote platform. A trigger plate 403 for triggering the second micro switch 9 is fixed on the unlocking plate 4. When the pressing plate 402 is pressed, the unlocking plate 4 runs with the trigger plate 403, causing the trigger plate 403 to trigger the second micro switch 9. When manually operated, the second micro switch 9 transmits a manual operation signal to the remote platform for safety.

[0049] Embodiment 3

[0050] like Figure 1-Figure 2As shown, on the basis of embodiment 1, in order to realize the sliding installation of the slide plate 2 on the inner bracket 1, the side wall of the inner bracket 1 is meshed with at least two fixing bolts 6, and the side wall of the inner bracket 1 is provided with threaded holes for the fixing bolts 6 to mesh with, and the side wall of the slide plate 2 is provided with a first waist groove 203 for the fixing bolts 6 to pass through. When installing the slide plate 2, the slide plate 2 is attached to the inner bracket 1, and the threaded end of the fixing bolt 6 is passed through the first waist groove 203 and meshed with the side wall of the inner bracket 1. At this time, the slide plate 2 is limited by the big head end of the fixing bolt 6. At the same time, the cooperation between the fixing bolt 6 and the first waist groove 203 is utilized to realize the sliding installation of the slide plate 2 on the inner bracket 1.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A manually operated mechanical interlocking structure applied to a high voltage switch operating mechanism, characterized in that: include: An inner bracket (1), wherein a manual operation port (101) is provided on a side wall of the inner bracket (1); A slide plate (2), the slide plate (2) being slidably connected to a side wall of the inner bracket (1) on which a manual operation opening (101) is provided, and a shielding portion (201) for shielding the manual operation opening (101) is fixed to the side wall of the slide plate (2); A switching rod (3), the switching rod (3) being rotatably connected to the interior of the inner bracket (1), one end of the switching rod (3) passing through a through hole (202) on the slide plate (2) and extending to the exterior of the inner bracket (1); An unlocking plate (4), wherein the unlocking plate (4) is slidably connected to the side wall of the inner bracket (1) via a first spring (5), the sliding direction of the unlocking plate (4) is perpendicular to the sliding direction of the slide plate (2), the unlocking plate (4) is provided with a locking groove (401) for fixing the locking switch rod (3), and a pressing plate (402) extending to the outside of the inner bracket (1) is fixed on the side wall of the unlocking plate (4).

2. A manually operated mechanical interlocking structure applied to a high voltage switch operating mechanism according to claim 1, characterized in that: Also includes: A second waist groove (204), wherein the second waist groove (204) is formed on the slide plate (2); An interlocking coil (7), wherein the interlocking coil (7) is fixed on the inner bracket (1), and an output end of the interlocking coil (7) is connected to a locking block (701) that is movably engaged in the second waist groove (204); A protrusion (205), wherein the protrusion (205) is fixed on the slide plate (2); A first micro switch (8), wherein the first micro switch (8) is fixed on the inner bracket (1), and a contact of the first micro switch (8) is in rolling contact with the protrusion (205).

3. A manually operated mechanical interlocking structure applied to a high voltage switch operating mechanism according to claim 1, characterized in that: A second micro switch (9) is fixedly mounted on the side wall of the inner bracket (1), and a trigger plate (403) for triggering the second micro switch (9) is fixed on the unlocking plate (4).

4. A manually operated mechanical interlocking structure applied to a high voltage switch operating mechanism according to claim 1, characterized in that: A fixing column (10) is fixed inside the inner bracket (1), and a reset rod (11) is rotatably connected to the fixing column (10). One end of the reset rod (11) is rotatably connected to the switching rod (3), and the other end of the reset rod (11) is connected to the side wall of the inner bracket (1) via a tension spring (12).

5. A manually operated mechanical interlocking structure applied to a high voltage switch operating mechanism according to claim 1, characterized in that: A column (13) is arranged inside the inner bracket (1), and the inner end of the switching rod (3) is rotatably connected to the column (13).

6. A manually operated mechanical interlocking structure applied to a high voltage switch operating mechanism according to claim 1, characterized in that: A guide column (14) is arranged inside the inner bracket (1) to guide the sliding of the unlocking plate (4); the unlocking plate (4) is slidably sleeved on a plurality of guide columns (14), and each guide column (14) is sleeved with a first spring (5) for slidingly resetting the unlocking plate (4).

7. A manually operated mechanical interlocking structure applied to a high voltage switch operating mechanism according to claim 1, characterized in that: A guide plate (15) is fixedly connected to the side wall of the inner bracket (1), and a sliding groove for the switching rod (3) and the pressing plate (402) to slide is provided on the side wall of the guide plate (15).

8. A manually operated mechanical interlocking structure applied to a high voltage switch operating mechanism according to claim 1, characterized in that: At least two fixing bolts (6) are meshedly connected on the side wall of the inner bracket (1), and a first waist groove (203) for the fixing bolts (6) to pass through is provided on the side wall of the slide plate (2).

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