Handle lock mechanism of strip-shaped disconnecting switch

Abstract

The utility model relates to a handle lock mechanism of a strip-shaped isolating switch, which comprises a main body, the operation upper cover is arranged on the main body; the operating handle is rotationally connected to the main body and penetrates through the operating upper cover, the operating handle comprises two parallel connecting rods arranged side by side and a handle body connected with the top ends of the two connecting rods, the lower ends of the connecting rods are connected with a rotating gear, and the rotating gear is rotationally connected into the main body; the shifting rod lock is connected to the operation upper cover in a sliding mode and located between the two connecting rods, a shifting rod is arranged on the shifting rod lock in a protruding mode, and the shifting rod lock drives the shifting rod to move and then enables the shifting rod to be located on the moving path of the connecting rods. The utility model has the beneficial effects that the connecting rod is blocked and limited, so that the operating handle cannot be pulled, and meanwhile, the visible lock can be hung to play a warning role, so that non-professionals are prevented from operating the switch at will, and the safety of maintainers is effectively protected.

Description

Technical Field

[0001] The utility model relates to the technical field of isolating switches, in particular to a handle locking mechanism of a strip-shaped isolating switch. Background Art

[0002] The isolating switch is a switching device that is mainly used for "isolating power supply, switching operation, connecting and disconnecting small current circuits" and has no arc extinguishing function. When the isolating switch is in the open position, there is an insulation distance that meets the specified requirements and an obvious disconnection mark between the contacts; when it is in the closed position, it is a switching device that can carry the current under normal circuit conditions and the current under abnormal conditions (such as short circuit) within a specified time. It is generally used as a high-voltage isolating switch, that is, an isolating switch with a rated voltage of more than 1kV. Its working principle and structure are relatively simple, but due to its large usage and high working reliability requirements, it has a great impact on the design, construction and safe operation of substations and power plants. The main feature of the isolating switch is that it has no arc extinguishing ability and can only open and close the circuit without load current.

[0003] In the prior art, the isolating switch is usually not equipped with a corresponding safety mechanism, so it can be easily closed or opened. When performing equipment maintenance, it is necessary to prohibit live work, so the isolating switch needs to be opened during the maintenance process. However, due to various reasons, such as the failure of timely information communication between maintenance personnel or between maintenance personnel and production personnel, the isolating switch may be closed before the maintenance is completed or even in progress; or the isolating switch may be closed due to accidental touch. In this way, it is very likely to cause major safety accidents such as electric shock to maintenance personnel and damage to equipment. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a handle lock mechanism for a strip-type isolating switch to solve the above problems.

[0005] The technical solution of the utility model is implemented as follows: a handle lock mechanism of a strip-shaped isolating switch comprises:

[0006] main body;

[0007] An operating upper cover, wherein the operating upper cover is arranged on the main body;

[0008] An operating handle, the operating handle is rotatably connected to the main body and passes through the operating upper cover, the operating handle comprises two parallel and juxtaposed connecting rods, a handle connecting the top ends of the two connecting rods, the lower end of the connecting rod is connected to a rotating gear, and the rotating gear is rotatably connected in the main body;

[0009] A lever lock, the lever lock is slidably connected to the operating cover and is located between the two connecting rods. A lever is protruding from the lever lock. The lever lock drives the lever to move so that the lever is located on the moving path of the connecting rods.

[0010] Wherein, the operating upper cover is provided with a through slot for the connecting rod to pass through and swing, and the shaft core of the shifting rod is located directly above the shaft core of the rotating gear.

[0011] By adopting the above technical solution, when the lever lock has not slid out, the lever has not entered the through slot. When the operating handle is in the opening or closing position, the lever lock is pushed to make the lever extend into the through slot, thereby blocking and limiting the connecting rod, making it impossible for the operating handle to be pulled, thereby avoiding accidental touch, effectively protecting the safety of maintenance personnel. At the same time, an open lock can be added to serve as a warning to prevent non-professionals from operating the switch at will, effectively protecting the safety of maintenance personnel.

[0012] The utility model is further configured to include:

[0013] Notches are provided on both sides of the connecting rod, and the notches match the shifting rod.

[0014] By adopting the above technical solution, after the lever is extended, it will abut against the notches on both sides of the connecting rod, thereby improving the stability of the connecting rod when blocking.

[0015] The utility model is further configured to include:

[0016] A padlock frame, the padlock frame is protrudingly arranged on the upper side of the operating cover and is located on one side of the upper end opening of the through slot, at least two padlock frames are provided, and a first padlock hole is provided on the padlock frame;

[0017] a second padlock hole, wherein the second padlock hole is provided on the connecting rod;

[0018] Wherein, when the operating handle is in the closing or opening position, the second padlock hole corresponds to the two padlock frames respectively, so that the first padlock hole is connected to the second padlock hole.

[0019] By adopting the above technical solution, when the operating handle is in the closing or opening position, the padlock can be locked through the first padlock hole and the second padlock hole on the padlock frame, so that the operating handle cannot be pulled, further improving the safety performance.

[0020] The utility model is further configured as follows: a sliding groove for sliding the lever lock is provided on the operating upper cover, two limit grooves are provided on the inner wall of the sliding groove, the two limit grooves are arranged at intervals along the sliding direction of the lever lock, a limit block is protruded on the outer wall of the lever lock, the limit block matches the limit groove, and the limit groove and the limit block are both configured as arc shapes.

[0021] By adopting the above technical solution, the lever lock has a positioning effect both at the initial position and the sliding position when sliding, so that the sliding effect is better.

[0022] The utility model is further configured as follows: an upper surface of the operation upper cover is provided with an indication mark.

[0023] By adopting the above technical solution, the current status of the lever lock and the operating handle can be clearly understood when they are in use, making the use more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1 It is a structural schematic diagram of a strip-type isolating switch;

[0026] Figure 2 This is a schematic diagram of the structure of a specific implementation method of the utility model (opening state);

[0027] Figure 3 for Figure 2 The schematic diagram of the structure after removing the operating cover;

[0028] Figure 4 This is a cross-sectional view of the specific implementation scheme of the utility model Figure 1 ;

[0029] Figure 5 This is a schematic diagram of the structure after removing the operating cover (closing state);

[0030] Figure 6 This is a cross-sectional view of the specific implementation scheme of the utility model Figure 2 . DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] like Figure 1-Figure 6 As shown, the utility model discloses a handle lock mechanism of a strip-shaped isolating switch, comprising:

[0033] Subject 1;

[0034] An operating upper cover 2, wherein the operating upper cover 2 is arranged on the main body 1;

[0035] An operating handle 3, the operating handle 3 is rotatably connected to the main body 1 and passes through the operating upper cover 2, the operating handle 3 includes two parallel and juxtaposed connecting rods 30, a handle 31 connecting the top ends of the two connecting rods 30, the lower end of the connecting rod 30 is connected to a rotating gear 32, and the rotating gear 32 is rotatably connected in the main body 1;

[0036] A lever lock 4, wherein the lever lock 4 is slidably connected to the operating upper cover 2 and is located between the two connecting rods 30. A lever 40 is protruding from the lever lock 4. After the lever lock 4 drives the lever 40 to move, the lever 40 is located on the moving path of the connecting rod 30;

[0037] The operating upper cover 2 is provided with a through slot 20 for the connecting rod 30 to pass through and swing, and the axis core of the shifting rod 40 is located directly above the axis core of the rotating gear 32 .

[0038] By adopting the above technical solution, when the lever lock 4 has not slid out, the lever 40 has not entered the through slot 20. When the operating handle 3 is in the opening or closing position, the lever lock 4 is pushed to make the lever 40 extend into the through slot 20, thereby blocking and limiting the connecting rod 30, so that the operating handle 3 cannot be pulled, thereby avoiding accidental touch, effectively protecting the safety of maintenance personnel, and at the same time, an open lock can be added to serve as a warning to prevent non-professionals from operating the switch at will, effectively protecting the safety of maintenance personnel.

[0039] In the embodiment of the utility model, it also includes:

[0040] The notch 300 is formed on both sides of the connecting rod 30 , and the notch 300 matches the lever 40 .

[0041] By adopting the above technical solution, after the lever 40 is extended, it will abut against the notches 300 on both sides of the connecting rod 30 , thereby improving the stability of the connecting rod 30 when being blocked.

[0042] In the embodiment of the utility model, it also includes:

[0043] A padlock frame 5, the padlock frame 5 is protrudingly arranged on the upper side of the operating cover 2 and located on one side of the upper end opening of the through slot 20, at least two padlock frames 5 are provided, and a first padlock hole 50 is provided on the padlock frame 5;

[0044] A second padlock hole 301, wherein the second padlock hole 301 is provided on the connecting rod 30;

[0045] When the operating handle 3 is in the closing or opening position, the second padlock hole 301 corresponds to the two padlock frames 5 respectively, so that the first padlock hole 50 is connected to the second padlock hole 301 .

[0046] By adopting the above technical solution, when the operating handle 3 is in the closing or opening position, the padlock can be locked through the first padlock hole 50 and the second padlock hole 301 on the padlock frame 5, so that the operating handle 3 cannot be pulled, further improving the safety performance.

[0047] In the embodiment of the utility model, the operating upper cover 2 is provided with a sliding groove 21 for the lever lock 4 to slide, and two limit grooves 210 are provided on the inner wall of the sliding groove 21. The two limit grooves 210 are arranged at intervals along the sliding direction of the lever lock 4. A limit block 41 is protruded on the outer wall of the lever lock 4. The limit block 41 matches the limit groove 210, and the limit groove 210 and the limit block 41 are both set to be arc-shaped.

[0048] By adopting the above technical solution, the lever lock 4 has a positioning effect both at the initial position and the sliding position when sliding, so that the sliding effect is better.

[0049] In the embodiment of the utility model, an indication mark is provided on the upper surface of the operation upper cover 2 .

[0050] By adopting the above technical solution, the current status of the lever lock 4 and the operating handle 3 can be clearly understood during operation, making the use more convenient.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A handle lock mechanism for a strip-type isolating switch, characterized in that: include, Subject (1); An operating upper cover (2), wherein the operating upper cover (2) is arranged on the main body (1); an operating handle (3), the operating handle (3) being rotatably connected to the main body (1) and passing through the operating upper cover (2), the operating handle (3) comprising two parallel and juxtaposed connecting rods (30), a handle (31) connecting the top ends of the two connecting rods (30), the lower ends of the connecting rods (30) being connected to a rotating gear (32), and the rotating gear (32) being rotatably connected in the main body (1); A lever lock (4), the lever lock (4) being slidably connected to the operating upper cover (2) and being located between the two connecting rods (30), the lever lock (4) being provided with a lever (40) protruding therefrom, and the lever lock (4) driving the lever (40) to move so that the lever (40) is located on a moving path of the connecting rod (30); The operating upper cover (2) is provided with a through slot (20) for the connecting rod (30) to pass through and swing, and the shaft core of the shifting rod (40) is located directly above the shaft core of the rotating gear (32).

2. A handle lock mechanism for a strip-type isolating switch according to claim 1, characterized in that: Also includes: A notch (300) is provided on both sides of the connecting rod (30), and the notch (300) matches the shifting rod (40).

3. The handle lock mechanism of a strip-type isolating switch according to claim 1, characterized in that: Also includes: A padlock frame (5), the padlock frame (5) protruding from the upper side of the operating cover (2) and located on a side of the upper opening of the through slot (20), at least two padlock frames (5) are provided, and a first padlock hole (50) is provided on the padlock frame (5); A second padlock hole (301), wherein the second padlock hole (301) is formed on the connecting rod (30); When the operating handle (3) is in the closing or opening position, the second padlock hole (301) corresponds to the two padlock frames (5) respectively, so that the first padlock hole (50) is connected to the second padlock hole (301).

4. The handle lock mechanism of a strip-type isolating switch according to claim 1, characterized in that: The operating upper cover (2) is provided with a sliding groove (21) for the lever lock (4) to slide, and the inner wall of the sliding groove (21) is provided with two limit grooves (210), and the two limit grooves (210) are arranged at intervals along the sliding direction of the lever lock (4), and a limit block (41) is protruding from the outer wall of the lever lock (4), and the limit block (41) matches the limit groove (210), and the limit groove (210) and the limit block (41) are both arranged in an arc shape.

5. The handle lock mechanism of a strip-type isolating switch according to claim 1, characterized in that: The upper surface of the operating upper cover (2) is provided with an indication mark.

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