Novel isolating switch swing arm mechanism
By replacing the complex lever mechanism with the first swing arm and the second swing arm made of stamped in the isolating switch, the problems of complex structure and high cost of the existing isolating switch are solved, and a more stable and safe opening and closing action is achieved.
Patent Information
- Application Number
- CN202421866278.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-02
AI Technical Summary
The lever mechanism of the existing isolating switch has a complex structure and high production cost. Due to the defects of the casting parts, the parts are prone to breaking, resulting in the switch being unable to open and close normally.
The new type of isolating switch swing arm mechanism is adopted, and the original lever mechanism is replaced by the first swing arm and the second swing arm. The swing arm mechanism made by stamping is simplified, the production cost is reduced, and the action speed is increased through the energy storage and release of the spring.
It reduces the production cost of the isolating switch, improves the stability and safety of the equipment, avoids the problem of parts breakage, and ensures the normal operation of the opening and closing operation.
Smart Images
Figure CN223038836U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a swing arm mechanism, in particular to a novel swing arm mechanism for a disconnector. Background Art
[0002] A disconnector is a switchgear that, in the open position, has an insulating distance that meets the specified requirements and an obvious disconnection mark between the contacts; in the closed position, it can carry the current under normal circuit conditions and the current under abnormal conditions (such as short circuit) within a specified time. The existing disconnector realizes the closing and opening actions through a lever mechanism. The lever mechanism has a complex structure, and since all the components of the lever mechanism are three-dimensional structures and need to be made by casting molds, the manufacturing cost of the existing disconnector is high; and due to the defects existing in the castings themselves, there are also many sand holes in the components of the lever mechanism, making the density of the components uneven, and there is a situation where the casting breaks during use, resulting in the switch being unable to operate normally for closing and opening. Summary of the Utility Model
[0003] The utility model aims to solve at least one of the technical problems in the related art to a certain extent. For this purpose, the utility model proposes a novel swing arm mechanism for a disconnector.
[0004] The technical solution adopted by the utility model to solve its technical problems is: a novel swing arm mechanism for a disconnector, including a box body, a rotating rod, a first swing arm, a second swing arm, a moving block and a spring; a static contact piece is arranged in the box body; the first swing arm and the second swing arm are made by stamping.
[0005] Both the first swing arm and the second swing arm are located at the top of the box body; the rotating rod is arranged on the first swing arm, and the bottom end of the rotating rod is arranged in the box body, and the rotating rod drives the first swing arm to rotate; one end of the first swing arm is provided with a moving column.
[0006] One end of the second swing arm is provided with a moving hole, the moving column is arranged in the moving hole in a matching manner, and the moving column moves along the moving hole, and the other end of the second swing arm is rotatably arranged on the box body; a spring is sleeved on the second swing arm.
[0007] The bottom end of the moving column is connected to a moving block arranged in the box body, and a moving contact piece is arranged on the moving block; the static contact piece is arranged on one side of the moving contact piece.
[0008] Driving the first swing arm to rotate drives the moving column to move along the moving hole to compress the spring, and at the same time drives the moving block through the moving column, thereby driving the moving contact piece to realize the action of contacting the static contact piece for closing or separating the moving contact piece from the static contact piece for opening.
[0009] In a preferred embodiment of the utility model, a slide rail is arranged at the bottom end inside the box body, and the bottom end of the moving block is arranged in the slide rail in a matching manner.
[0010] In a preferred embodiment of the present utility model, a rotating shaft is provided on the box body, the second swing arm is sleeved on the rotating shaft, and the second swing arm rotates along the rotating shaft under the drive of the first swing arm.
[0011] In a preferred embodiment of the present utility model, a fixed limiting plate and a movable limiting plate are provided on the second swing arm, the fixed limiting plate is arranged on the side close to the rotating shaft, the movable limiting plate is arranged on the end close to the moving hole, and the spring is arranged between the fixed limiting plate and the movable limiting plate.
[0012] In a preferred embodiment of the present utility model, a fixed seat is provided on the top end of the box body, the bottom end of the rotating rod is arranged in the fixed seat, and the rotating rod drives the first swing arm to rotate along the fixed seat.
[0013] In a preferred embodiment of the present utility model, a travel hole is provided on the box body, a support platform, a travel plate and a connecting column are sequentially arranged at the bottom end of the moving column, the connecting column passes through the travel hole and is connected with the moving block, the travel plate reciprocates along the travel hole under the drive of the first swing arm, and the travel plate is located at the top end of the box body.
[0014] In a preferred embodiment of the present utility model, it further includes an upper cover, the rotating rod, the first swing arm, the second swing arm and the spring are all located in the upper cover, the rotating rod extends out of the upper cover, and a knob is provided at one end of the rotating rod extending out of the upper cover.
[0015] The beneficial effects of the present utility model are as follows: The present utility model replaces the original lever mechanism with the first swing arm and the second swing arm. The first swing arm and the second swing arm are simpler in structure than the original lever mechanism. The first swing arm and the second swing arm are made by stamping, which simplifies the manufacturing process and greatly reduces the manufacturing cost of the disconnecting switch; moreover, the first swing arm and the second swing arm made by stamping have higher strength compared to the lever mechanism with sand holes made by casting, effectively avoiding breakage during use and ensuring the normal operation of the switch for closing and opening, thus guaranteeing the stability and safety of the disconnecting switch during closing and opening. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic structural diagram of the present utility model Figure 1 ;
[0017] Figure 2 is a schematic structural diagram of the present utility model Figure 2 ;
[0018] Figure 3 is a schematic structural diagram of the present utility model Figure 3 ;
[0019] Figure 4 is a schematic structural diagram of the moving block of the present utility model;
[0020] Figure 5 It is a schematic diagram of the connection structure between the connecting column and the moving block of the present utility model;
[0021] Figure 6 It is a schematic diagram of the connection structure between the first swing arm and the second swing arm of the present utility model;
[0022] Figure 7 It is a schematic diagram of the structure of the second swing arm of the present utility model;
[0023] Figure 8 It is a schematic diagram of the closing state of the moving contact piece and the static contact piece of the present utility model;
[0024] Figure 9 It is a schematic diagram of the opening state of the moving contact piece and the static contact piece of the present utility model;
[0025] Figure 10 It is a schematic diagram of the structure of the upper cover of the present utility model.
[0026] In the figure: box body 1; slide rail 101; fixed seat 102; travel hole 103; rotating rod 2; first swing arm 3; moving column 301; second swing arm 4; moving hole 401; fixed limit plate 402; movable limit plate 403; moving block 5; spring 6; static contact piece 7; moving contact piece 8; rotating shaft 9; knob 10; upper cover 11; support platform 12; travel plate 13; connecting column 14. Specific embodiments
[0027] The following details the embodiments of the present utility model. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.
[0028] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically defined.
[0029] As Figures 1 to 10 shown, a novel isolating switch swing arm mechanism includes a box body 1, a rotating rod 2, a first swing arm 3, a second swing arm 4, a moving block 5 and a spring 6; a static contact piece 7 is provided inside the box body 1; the first swing arm 3 and the second swing arm 4 are made by stamping.
[0030] Both the first swing arm 3 and the second swing arm 4 are located at the top of the box body 1; the rotating rod 2 is arranged on the first swing arm 3, and the bottom end of the rotating rod 2 is arranged inside the box body 1, and the rotating rod 2 drives the first swing arm 3 to rotate; one end of the first swing arm 3 is provided with a moving column 301.
[0031] One end of the second swing arm 4 is provided with a moving hole 401, the moving column 301 is correspondingly arranged in the moving hole 401, and the moving column 301 moves along the moving hole 401, and the other end of the second swing arm 4 is rotatably arranged on the box body 1; a spring 6 is sleeved on the second swing arm 4.
[0032] The bottom end of the moving column 301 is connected to the moving block 5 arranged inside the box body 1, and a moving contact piece 8 is provided on the moving block 5; the static contact piece 7 is arranged on one side of the moving contact piece 8.
[0033] Driving the first swing arm 3 to rotate drives the moving column 301 to move along the moving hole 401 to compress the spring 6, and at the same time drives the moving block 5 through the moving column 301, thereby driving the moving contact piece 8 to achieve the actions of contacting and closing with the static contact piece 7 or separating and opening the moving contact piece 8 from the static contact piece 7.
[0034] When the disconnecting switch needs to be opened, manually rotate the rotating rod 2 counterclockwise. Since the rotating rod 2 is arranged on the first swing arm 3 and the bottom end of the rotating rod 2 is arranged in the box body 1, the rotating rod 2 rotates with the part arranged in the box 1 as the center and the distance from the rotating rod 2 to the first swing arm 3 as the radius. And there is a moving column 301 on the first swing arm 3, and the moving column 301 is arranged in the moving hole 401 in the second swing arm 4. During the process that the moving column 301 on the first swing arm 3 drives the second swing arm 4 to rotate counterclockwise, the moving column 301 drives the moving block 5 connected to the moving column 301 and located in the box body 1 to move, and then drives the moving contact 8 on the moving block 5 to move away from the static contact 7 until the moving contact is separated from the static contact, realizing the opening action of the disconnecting switch. While the moving column 301 drives the second swing arm 4 to rotate counterclockwise, the moving column 301 moves in the moving hole 401, that is, the moving column 301 moves towards the other end of the second swing arm 4 in the moving hole 401, so that the moving column 301 continuously compresses the spring 6 sleeved on the second swing arm 4, realizing the energy storage of the spring 6; when the spring 6 continuously compressed by the moving column 301 exceeds the critical value that the spring 6 can bear, the elastic potential energy of the spring 6 is released. When the spring 6 releases the elastic potential energy, it realizes to push the moving column 301 and then push the rotation of the first swing arm 3, which is beneficial to improving the rotation speed of the first swing arm 3, and then improving the separation speed of the moving contact 8 driven by the first swing arm 3 from the static contact 7, and improving the opening speed.
[0035] When the disconnecting switch needs to be closed, manually rotate the rotating rod 2 clockwise, then the rotation 2 drives the first swing arm 3 to rotate clockwise, and then realizes that the first swing arm 3 drives the second swing arm 4 to rotate clockwise. The moving column 301 drives the moving block 5 connected to the moving column 301 and located in the box body 1 to move, and then drives the moving contact 8 on the moving block 5 to move towards the static contact 7 until the moving contact 8 contacts the static contact 7, realizing the closing action of the disconnecting switch. While the moving column 301 drives the second swing arm 4 to rotate clockwise, the moving column 301 moves in the moving hole 401, that is, the moving column 301 moves towards the other end of the second swing arm 4 in the moving hole 401, so that the moving column 301 continuously compresses the spring 6 sleeved on the second swing arm 4, realizing the energy storage of the spring; when the spring 6 continuously compressed by the moving column 301 exceeds the critical value that the spring can bear, the elastic potential energy of the spring 6 is released. When the spring 6 releases the elastic potential energy, it realizes to push the moving column 301 to move and then push the first swing arm 3 to rotate clockwise, which is beneficial to improving the rotation speed of the first swing arm 3, and then improving the contact speed of the moving contact 8 driven by the first swing arm 3 with the static contact 7, and improving the closing speed.
[0036] As a preferred embodiment, a slide rail 101 is provided at the inner bottom end of the box body 1, and the bottom end of the moving block 5 is correspondingly arranged in the slide rail 101. During the process of the moving column 301 driving the moving block 5 to move, the moving block 5 moves along the slide rail 101, ensuring the stability of the movement of the moving block 5, the stability of the position when the moving contact piece 8 on the moving block contacts or separates from the static contact piece 7, and the stable operation of closing and opening the switch.
[0037] As a preferred embodiment, a rotating shaft 9 is provided on the box body 1, the second swing arm 4 is sleeved on the rotating shaft 9, and the second swing arm 4 rotates along the rotating shaft 9 under the drive of the first swing arm 3. That is, during the process of the first swing arm 3 driving the second swing arm 4 to rotate, the second swing arm 4 rotates with the rotating shaft 9 as the fulcrum, ensuring the stability of the rotation of the second swing arm 4.
[0038] As a preferred embodiment, a fixed limit plate 402 and a movable limit plate 403 are provided on the second swing arm 4. The fixed limit plate 402 is arranged on the side close to the rotating shaft 9, the movable limit plate 403 is arranged at one end close to the moving hole 401, the spring 6 is located between the fixed limit plate 402 and the movable limit plate 403, and the two ends of the spring 6 are respectively connected to the fixed limit plate 402 and the movable limit plate 403. The movable limit plate 403 moves along the second swing arm 4, and the fixed limit plate 402 is fixedly arranged on the second swing arm. During the process of the moving column 301 moving along the moving hole 401, that is, during the process of the moving column 301 continuously approaching the other end of the second swing arm 4 along the moving hole 401, the moving column 301 continuously squeezes the movable limit plate 403, and the movable limit plate 403 then squeezes the spring 6. Due to the limitation of the fixed limit plate 402, the spring 6 is continuously squeezed to store elastic potential energy. The movable limit plate 403 plays a guiding role for the spring 6, ensuring the stability of the squeezing of the spring 6 by the moving column 301.
[0039] As a preferred embodiment, a fixed seat 102 is provided on the top end of the box body 1, the bottom end of the rotating rod 2 is arranged in the fixed seat 102, and the rotating rod 2 drives the first swing arm 3 to rotate along the fixed seat 102. When driving the rotating rod 2 to rotate, the rotating rod 2 uses the fixed seat 102 as the fulcrum to realize the stable rotation of the rotating rod 2 driving the first swing arm 3.
[0040] As a preferred embodiment, a travel hole 103 is provided on the box body 1. The bottom end of the moving column 301 is successively provided with a support platform 12, a travel plate 13 and a connecting column 14. The connecting column 14 passes through the travel hole 103 and is connected to the moving block 5. The travel plate 13 reciprocally moves along the travel hole 103 under the drive of the first swing arm 3, and the travel plate 13 is located on the top end of the box body 1.
[0041] When driving the rotation of the rotating rod 2, the first swing arm 3 drives the moving column 301 to rotate with the rotating rod 2 as the fulcrum. During the rotation of the moving column 301 along the rotating rod 2, it successively drives the support platform 12, the stroke plate 13, the connecting column 14, and the moving block 5 to rotate along the rotating rod 2, so that the moving block 5 drives the moving contact 8 to contact or separate from the static contact 7, thereby realizing the closing and opening actions. The stroke hole 103 provides a stroke space for the moving column 301 to drive the moving block 5, and the stroke of the moving block 5 driving the moving contact 8 is matched with the length of the stroke hole 103; since the stroke plate 13 is located at the top of the box body 1, when the moving column 301 drives the stroke plate 13 to move, the position of the stroke plate 13 on the stroke hole 103 changes, which is convenient for viewing the change in the moving position of the moving block 5 driving the moving contact.
[0042] As a preferred embodiment, it further includes an upper cover 11. The rotating rod 2, the first swing arm 3, the second swing arm 4, and the spring 6 are all located inside the upper cover 11. The upper cover 11 is used to protect each component and ensure the safe use of the disconnecting switch at the same time; the rotating rod 2 extends out of the upper cover 11, and a knob 10 is provided at one end of the rotating rod 2 extending out of the upper cover 11. The knob 10 provides a force application point for driving the rotation of the rotating rod 2, which is convenient for improving the rotation efficiency of the rotating rod 2.
[0043] In the description of this specification, the description with reference to terms such as "one embodiment", "certain embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0044] In summary, although the present invention has been disclosed above with preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Those of ordinary skill in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention is subject to the scope defined by the claims.
Claims
1. A novel isolating switch swing arm mechanism, characterized in that: The invention comprises a box body (1), a rotating rod (2), a first swing arm (3), a second swing arm (4), a moving block (5) and a spring (6); a stationary contact piece (7) is arranged in the box body (1); the first swing arm (3) and the second swing arm (4) are made by stamping; The first swing arm (3) and the second swing arm (4) are both located at the top of the box body (1); the rotating rod (2) is arranged on the first swing arm (3), and the bottom end of the rotating rod (2) is arranged in the box body (1), and the rotating rod (2) drives the first swing arm (3) to rotate; a moving column (301) is provided at one end of the first swing arm (3); One end of the second swing arm (4) is provided with a moving hole (401), the moving column (301) is matchedly arranged in the moving hole (401), and the moving column (301) moves along the moving hole (401), and the other end of the second swing arm (4) is rotatably arranged on the box body (1); the second swing arm (4) is sleeved with a spring (6); The bottom end of the moving column (301) is connected to a moving block (5) arranged in the box body (1), and a moving contact piece (8) is arranged on the moving block (5); the stationary contact piece (7) is arranged on one side of the moving contact piece (8); The first swing arm (3) is driven to rotate and drive the moving column (301) to move the compression spring (6) along the moving hole (401). At the same time, the moving column (301) drives the moving block (5) and further drives the moving contact piece (8) to achieve the action of contacting with the stationary contact piece (7) to close the switch or the action of separating the moving contact piece (8) from the stationary contact piece (7) to open the switch.
2. According to claim 1, the novel isolating switch swing arm mechanism is characterized in that: A slide rail (101) is provided at the inner bottom end of the box body (1), and the bottom end of the moving block (5) is matchedly arranged inside the slide rail (101).
3. According to claim 1, the novel isolating switch swing arm mechanism is characterized in that: The box body (1) is provided with a rotating shaft (9), the second swing arm (4) is sleeved on the rotating shaft (9), and the second swing arm (4) rotates along the rotating shaft (9) under the drive of the first swing arm (3).
4. According to claim 3, the novel isolating switch swing arm mechanism is characterized in that: The second swing arm (4) is provided with a fixed limit plate (402) and a movable limit plate (403); the fixed limit plate (402) is arranged on a side close to the rotating shaft (9); the movable limit plate (403) is arranged on an end close to the movable hole (401); and the spring (6) is arranged between the fixed limit plate (402) and the movable limit plate (403).
5. According to the novel isolating switch swing arm mechanism of claim 1, it is characterized in that: A fixing seat (102) is provided on the top of the box body (1), and the bottom end of the rotating rod (2) is arranged in the fixing seat (102). The rotating rod (2) drives the first swing arm (3) to rotate along the fixing seat (102).
6. According to claim 2, the novel isolating switch swing arm mechanism is characterized in that: The box body (1) is provided with a travel hole (103), and the bottom end of the movable column (301) is provided with a support platform (12), a travel plate (13) and a connecting column (14) in sequence. The connecting column (14) passes through the travel hole (103) and is connected to the movable block (5). The travel plate (13) moves back and forth along the travel hole (103) under the drive of the first swing arm (3), and the travel plate (13) is located at the top end of the box body (1).
7. The novel isolating switch swing arm mechanism according to any one of claims 1 to 6, characterized in that: It also comprises an upper cover (11), wherein the rotating rod (2), the first swing arm (3), the second swing arm (4) and the spring (6) are all located inside the upper cover (11), the rotating rod (2) extends out of the upper cover (11), and a knob (10) is provided on one end of the rotating rod (2) extending out of the upper cover (11).