Closing locking device of column switch

Abstract

The utility model discloses a switch-on locking device of a pole-mounted switch in the technical field of medium-voltage switches, which comprises a base, two sides of the top of the base are fixedly provided with composite pillars, the tops of the two composite pillars are respectively and fixedly connected with a first contact and a second contact, the top of the first contact is fixedly provided with two folded plates, and the top of the second contact is fixedly provided with a second folded plate. A circular shaft is rotatably connected between the two folded plates, and the outer surface of the circular shaft is fixedly sleeved with a knife switch body. According to the utility model, through the arrangement of the folded plate, the circular shaft and the locking assembly, after a worker closes the knife switch body, the knife switch body and the second contact are preliminarily connected through the latch hook assembly, and then the circular shaft can be locked and limited through the locking assembly, so that the knife switch body and the circular shaft can be prevented from rotating on the folded plate; the switch blade body can be stably kept in a closed state, and infirm closing caused by loosening of the latch hook assembly is avoided, so that normal use of the pole-mounted switch is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of medium voltage switch especially relates to a closing locking device of pole-mounted switch. BACKGROUND

[0002] The pole-mounted switch is a kind of disconnecting switch installed on the pole, through the development of locking device on station in-line circuit breaker, successfully solve the present situation that pole-mounted disconnecting switch and station in-line circuit breaker have no locking relationship in distribution network, avoid the security risk of pulling and closing disconnecting switch with load, effectively reduce the work risk, improve work efficiency and social stability, when using, operating personnel pull the lock hook of disconnecting switch through insulating hook rod and carry out opening and closing operation.

[0003] However, the prior art has some problems: after the existing disconnecting switch switch is closed, the lock hook in the lock hook assembly and the spring are usually matched to make the switch remain closed state, however, in actual use, the spring is prone to excessive fatigue under long-term use, so that the spring force is insufficient, and then the switch is prone to be not closed firmly, which affects normal use, therefore we propose a closing locking device of pole-mounted switch. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model provides a closing locking device of pole-mounted switch.

[0005] The utility model discloses a kind of closing locking devices of pole-mounted switch, including base, two sides of the base top are fixedly installed with composite support, the top of two composite supports is respectively fixedly connected with first contact and second contact, the top of first contact is fixedly installed with two flaps, rotatingly connected with round shaft between two flaps, the outer surface of round shaft is fixedly sleeved with switch blade body, the other end of switch blade body is lapped on second contact, locking assembly is provided on the flap, prevent switch blade body accidental rotation, switch blade body is connected between second contact by lock hook assembly.

[0006] Optionally, the lock hook assembly includes a vertical rod, the vertical rod is fixedly installed on the second contact, the vertical rod is fixedly installed with a flange, the switch blade body is fixedly installed with a vertical plate, the vertical plate is rotatably connected with a bent hook, the bottom of the bent hook is fixedly connected with a spring, and the bottom of the spring is fixedly connected to the switch blade body.

[0007] Optionally, the locking assembly includes a gear, the gear is fixedly sleeved on the round shaft, the flap is movably inserted with a latch, the bottom of the latch is fixedly connected with a toothed plate, and the toothed plate and the gear are meshingly connected.

[0008] Optionally, a square plate located above the gear is fixedly installed on the folding plate, a horizontal plate is movably inserted into the square plate, a square frame is fixedly connected to the right end of the horizontal plate, an oblique hole is opened on the horizontal plate, a round block is set inside the oblique hole, and the round block is fixedly connected to the pin.

[0009] Optionally, two retaining plates are fixedly installed on the top of the second contact, and an elastic sheet is fixedly installed between the opposite surfaces of the two retaining plates.

[0010] Optionally, the diameter of the circular block is the same as the width of the oblique hole, and both the outer surface of the circular block and the inner wall of the oblique hole are coated with a lubricating layer.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This utility model, by setting up a folding plate, a round shaft, and a locking component, allows the switch body to be initially connected to the second contact after the operator closes the switch body. The locking component then locks and limits the round shaft, thereby preventing the switch body and the round shaft from rotating on the folding plate. This ensures that the switch body remains stably closed and prevents insecure closure due to loosening of the locking component, thus guaranteeing the normal use of the pole-mounted switch. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure provided by this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the breaker body when it is opened, provided by this utility model;

[0016] Figure 3 This is a schematic diagram of the front structure of the folding plate provided by this utility model;

[0017] Figure 4 This is a schematic diagram of the disassembled structure of the folding plate and the knife body provided by this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the side of the second contact provided by this utility model;

[0019] Figure 6 yes Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0020] In the diagram: 1. Base; 2. Composite support; 3. First contact; 4. Second contact; 5. Folding plate; 6. Round shaft; 7. Knife body; 8. Vertical rod; 9. Flange; 10. Vertical plate; 11. Hook; 12. Spring; 13. Gear; 14. Pin; 15. Tooth plate; 16. Square plate; 17. Horizontal plate; 18. Square frame; 19. Slanted hole; 20. Round block; 21. Clamping plate; 22. Elastic sheet. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1 to 6 As shown in the figure, the closing locking device of the pole-mounted switch provided by this utility model includes a base 1. Composite support columns 2 are fixedly installed on both sides of the top of the base 1. The top of the two composite support columns 2 are respectively fixedly connected to a first contact 3 and a second contact 4. Two folding plates 5 are fixedly installed on the top of the first contact 3. A round shaft 6 is rotatably connected between the two folding plates 5. A switch body 7 is fixedly sleeved on the outer surface of the round shaft 6. The other end of the switch body 7 overlaps the second contact 4. A locking component is provided on the folding plate 5 to prevent the switch body 7 from rotating accidentally. The switch body 7 and the second contact 4 are connected by a locking hook component.

[0023] Furthermore, the locking hook assembly includes a vertical rod 8, which is fixedly mounted on the second contact 4. A flange 9 is fixedly mounted on the vertical rod 8. A vertical plate 10 is fixedly mounted on the knife switch body 7. A hook 11 is rotatably connected to the vertical plate 10. A spring 12 is fixedly connected to the bottom of the hook 11. The bottom of the spring 12 is fixedly connected to the knife switch body 7.

[0024] When the switch body 7 is attached to the second contact 4, it is locked onto the flange 9 by the hook 11. At the same time, the spring 12 is stretched. Due to the restoring effect of the spring 12, the hook 11 and the flange 9 will maintain a good locking state, thereby locking the switch body 7 against the second contact 4.

[0025] Furthermore, the locking assembly includes a gear 13, which is fixedly sleeved on the round shaft 6. A pin 14 is movably inserted into the folding plate 5, and a toothed plate 15 is fixedly connected to the bottom of the pin 14. The toothed plate 15 and the gear 13 are meshed together.

[0026] When the bolt 14 moves downward so that the toothed plate 15 is engaged on the gear 13, the locking of the circular shaft 6 is realized, so that the shutter body 7 cannot rotate with the circular shaft 6, thereby the shutter body 7 can be locked between the first contact 3 and the second contact 4, avoiding the misoperation of the staff or the fatigue failure of the spring 12 caused by long time use, so that the shutter body 7 and the second contact 4 are loose and disconnected, affecting the normal use.

[0027] Further, the folding plate 5 is fixedly provided with a square plate 16 above the gear 13, the square plate 16 is movably inserted with a horizontal plate 17, the right end of the horizontal plate 17 is fixedly connected with a square frame 18, the horizontal plate 17 is provided with an inclined hole 19, and the inclined hole 19 is provided with a circular block 20.

[0028] The staff can drive the horizontal plate 17 by pushing and pulling the square frame 18, so that the inner wall of the inclined hole 19 extrudes the outer surface of the circular block 20, and then the circular block 20 drives the bolt 14 and the toothed plate 15 to move upward or downward, so that the engagement or disengagement state between the toothed plate 15 and the gear 13 is realized.

[0029] Further, the top of the second contact 4 is fixedly provided with two clamping plates 21, and the opposite surfaces of the two clamping plates 21 are fixedly provided with elastic sheets 22.

[0030] Through the design of the elastic sheet 22, when the shutter body 7 is overlapped on the second contact 4 between the two clamping plates 21, the elastic sheet 22 can abut against the surface of the shutter body 7, so as to further ensure the connection state between the second contact 4 and the shutter body 7.

[0031] Further, the diameter size of the circular block 20 is same with the width size of the inclined hole 19, and the outer surface of the circular block 20 and the inner wall of the inclined hole 19 are coated with a lubricating layer.

[0032] The working principle and use process of the utility model:

[0033] When closing, the staff pulls the contact body 7 to abut on the second contact 4 through the insulating hook rod, so that the hook 11 is hooked on the flange 9, and the spring 12 is stretched, and due to the elastic recovery of the spring 12, the hook 11 and the flange 9 are kept in a good locking state, so that the contact body 7 is locked on the second contact 4, and the contact body 7 will extrude the two elastic sheets 22, the elastic sheets 22 can abut on the surface of the contact body 7, so as to further ensure the connection state between the second contact 4 and the contact body 7, then the staff can pull the square box 18 to the right through the insulating hook rod, so as to drive the horizontal plate 17 to move, and then the inner wall of the inclined hole 19 extrudes the circular block 20, so that the bolt 14 drives the toothed plate 15 to move downward and engage on the gear 13, and then the circular shaft 6 is locked and limited, so that the contact body 7 and the circular shaft 6 cannot rotate on the fold plate 5, the contact body 7 can be kept in a stable closed state, the staff can avoid the staff from closing the post switch not firmly due to the loosening of the hook assembly, so as to ensure the normal use of the post switch.

[0034] The above description of the embodiments is only used to help understand the method of the utility model and its core idea. It should be pointed out that for ordinary skilled persons in the art, without departing from the principles of the utility model, the utility model can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the utility model claims.

Claims

1. A closing locking device for a pole-mounted switch, comprising a base (1), wherein composite supports (2) are fixedly installed on both sides of the top of the base (1), and a first contact (3) and a second contact (4) are respectively fixedly connected to the top of the two composite supports (2), characterized in that: Two folding plates (5) are fixedly installed on the top of the first contact (3). A round shaft (6) is rotatably connected between the two folding plates (5). A knife body (7) is fixedly sleeved on the outer surface of the round shaft (6). The other end of the knife body (7) is attached to the second contact (4). A locking component is provided on the folding plate (5) to prevent the knife body (7) from rotating accidentally. The knife body (7) and the second contact (4) are connected by a locking hook component.

2. The closing locking device for a pole-mounted switch according to claim 1, characterized in that: The locking hook assembly includes a vertical rod (8), which is fixedly installed on the second contact (4). A flange (9) is fixedly installed on the vertical rod (8). A vertical plate (10) is fixedly installed on the knife switch body (7). A hook (11) is rotatably connected to the vertical plate (10). A spring (12) is fixedly connected to the bottom of the hook (11). The bottom of the spring (12) is fixedly connected to the knife switch body (7).

3. The closing locking device for a pole-mounted switch according to claim 1, characterized in that: The locking assembly includes a gear (13), which is fixedly sleeved on a round shaft (6). A pin (14) is movably inserted into the folding plate (5). A toothed plate (15) is fixedly connected to the bottom of the pin (14). The toothed plate (15) and the gear (13) are meshed together.

4. The closing locking device for a pole-mounted switch according to claim 1, characterized in that: A square plate (16) located above the gear (13) is fixedly installed on the folding plate (5). A horizontal plate (17) is movably inserted into the square plate (16). A square frame (18) is fixedly connected to the right end of the horizontal plate (17). An oblique hole (19) is opened on the horizontal plate (17). A round block (20) is set inside the oblique hole (19). The round block (20) is fixedly connected to the pin (14).

5. The closing locking device for a pole-mounted switch according to claim 1, characterized in that: Two clamping plates (21) are fixedly installed on the top of the second contact (4), and elastic sheets (22) are fixedly installed between the opposite surfaces of the two clamping plates (21).

6. The closing locking device for a pole-mounted switch according to claim 4, characterized in that: The diameter of the circular block (20) is the same as the width of the oblique hole (19), and both the outer surface of the circular block (20) and the inner wall of the oblique hole (19) are coated with a lubricating layer.

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