A quick connection device for medium and low voltage switchgear

Abstract

The utility model relates to electrical equipment connection technical field discloses a quick connecting device of medium and low voltage switch equipment, it includes switch body, switch body is connected in movable frame in connecting structure through bolt, and connecting structure contains movable frame and connecting frame, and connecting frame is fixed in mounting surface, and the four around in connecting structure is equipped with guide assembly, and is matched with the taper convex block and the taper recess with ball, realizes accurate butt joint, and the inside middle is equipped with conducting assembly, and is contacted through conducting column and petal formula elastic contact, guarantees the stable conduction, and the both sides of connecting structure are equipped with limiting component and locking assembly, and the protruding block of limiting component and the locking block of locking assembly, damping and spring cooperation, complete quick location locking, and the support platform of connecting frame lower extreme strengthens the connection stability, the device can realize the quick, stable connection of medium and low voltage switch equipment, and the installation is convenient, and the security is high.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment connection technology, specifically a quick connection device for medium and low voltage switchgear. Background Technology

[0002] In the field of connection of medium and low voltage switchgear, existing technologies have many limitations.

[0003] A search revealed existing technology (application number: CN202320714092.4), which describes a "medium-voltage generator vehicle power supply fully insulated quick-connect switchgear." While this utility model can achieve quick cable plug-in and full insulation, it is mainly targeted at the specific scenario of connecting medium-voltage generator vehicle power supply to a switchgear, resulting in a narrow application scope. Furthermore, existing similar devices often lack a precise guiding structure during the connection process, leading to prolonged docking time between the movable frame and the connecting frame, resulting in low installation efficiency. Additionally, the operation of the limit locking mechanism is complex, further extending the installation time. Moreover, the connection structure of some devices lacks stability and is susceptible to loosening due to vibration and other factors during operation, posing a safety hazard. Regarding conductivity, the conductive contact structure design of existing devices is not reasonable enough; even slight installation deviations can easily lead to poor contact, increasing the risk of malfunctions.

[0004] Therefore, there is an urgent need for a quick connection device for medium and low voltage switchgear that can quickly and accurately connect, improve installation convenience, and ensure conductivity stability and reliability. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a quick connection device for medium and low voltage switchgear.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a quick connection device for medium and low voltage switchgear, comprising a switch body, wherein the switch body is bolted to one side of a movable frame in a connection structure, the connection structure being used for switch connection, a guide component being provided around the inside of the connection structure for docking during connection, a conductive component being provided around the center of the connection structure for conducting electricity, and a limit component and a locking component being provided on both sides of the connection structure for limiting movement.

[0007] As a further description of the above technical solution:

[0008] The connection structure includes a movable frame and a connecting frame. The movable frame is connected to the switch body on one side and the connecting frame is provided on the other side. The connecting frame is connected to the mounting surface by bolts. A support platform is provided at the lower end of the connecting frame near the movable frame.

[0009] As a further description of the above technical solution:

[0010] The guide assembly includes a conical protrusion and a conical groove. The conical protrusion is conical and its larger diameter end is connected to the side of the connecting frame near the movable frame. The surface of the conical protrusion is provided with multiple slides. The conical groove is conical and its smaller diameter end is placed inside the movable frame on the side away from the switch body. The inner wall of the conical groove is provided with multiple balls for cooperating with the outer wall of the conical protrusion.

[0011] As a further description of the above technical solution:

[0012] The conductive component includes a conductive post and a petal-shaped elastic contact, with one end of the conductive post connected to the connecting frame near the movable frame.

[0013] As a further description of the above technical solution:

[0014] One end of the petal-shaped elastic contact is petal-shaped and abuts against the other end of the conductive post. The other end of the petal-shaped elastic contact slides inside the sliding cavity. The end of the sliding cavity away from the petal-shaped elastic contact is placed inside the movable frame on the side away from the switch body.

[0015] As a further description of the above technical solution:

[0016] The limiting component includes a support wall, one end of which is connected to both sides of the movable frame and the other end is rotatably connected to the middle of the large diameter end of the protrusion. Limiting grooves are provided at the top and bottom of the middle of the small diameter end of the protrusion.

[0017] As a further description of the above technical solution:

[0018] The locking assembly includes a locking block, which is disposed inside both sides of the connecting frame. The lower end of the locking block is engaged with a limiting groove and the upper end is connected to one end of a spring. The other end of the spring is connected to the top surface inside both sides of the connecting frame. The spring is provided with damping.

[0019] This utility model has the following beneficial effects:

[0020] 1. By using the tapered protrusion in the guide assembly to cooperate with the tapered groove with ball bearings, the movable frame and the connecting frame can be quickly and accurately connected. With the synergistic effect of the limit assembly and locking assembly, the installation time is greatly shortened. Quick limit locking can be completed without complicated operations, significantly improving the ease of installation.

[0021] The support platform at the lower end of the connecting frame provides additional support for the overall connection, enhancing the structural stability of the device during operation and reducing loosening of the connection caused by factors such as vibration.

[0022] Second, the conductive components adopt a contact method of conductive posts and petal-shaped elastic contacts. The petal-shaped structure can always maintain a good contact state. Even with slight installation deviations, it can ensure the stability and reliability of conductivity and reduce the risk of failure caused by poor contact. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is an exploded view of the overall structure of this utility model;

[0025] Figure 3 This is an exploded sectional view of the internal connection structure of this utility model;

[0026] Figure 4 This is a cross-sectional view of the locking component structure of this utility model.

[0027] Legend:

[0028] 1. Switch body; 2. Connection structure; 3. Guide assembly; 4. Conductive assembly; 5. Limiting assembly; 6. Locking assembly; 7. Support platform; 201. Movable frame; 202. Connecting frame; 301. Conical protrusion; 302. Conical groove; 303. Ball bearing; 401. Conductive post; 402. Petal-shaped elastic contact; 403. Sliding cavity; 501. Support wall; 502. Protrusion; 503. Limiting groove; 601. Locking block; 602. Spring; 603. Damping. Detailed Implementation

[0029] 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.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] Example 1:

[0033] like Figures 1 to 4 As shown in the figure, this embodiment provides a quick connection device for medium and low voltage switchgear, including a switch body 1. The switch body 1 is bolted to one side of the movable frame 201 in the connection structure 2. The connection structure 2 is used for connecting the switch. The connection structure 2 has guide components 3 arranged around its interior. The guide components 3 are used for docking when the connection structure 2 is connected. The connection structure 2 has conductive components 4 arranged around its center. The conductive components 4 are used for conducting electricity. The connection structure 2 has limit components 5 and locking components 6 arranged on both sides. The limit components 5 and locking components 6 are used for limiting movement.

[0034] In this embodiment, the connecting structure 2, the guiding component 3, the conductive component 4, the limiting component 5, and the locking component 6 constitute a quick connection device for a medium- and low-voltage switchgear according to this application.

[0035] It should also be noted that the medium and low voltage switches in this application can be medium and low voltage load switches, low voltage circuit breakers, medium voltage disconnect switches, etc. Figure 1 In this embodiment, a medium- and low-voltage switch is used as an example of a medium- and low-voltage load switch for description. Of course, other types of medium- and low-voltage switches can also adopt a similar structure, which will not be described in detail below.

[0036] Understandable, Figure 1 The diagram only schematically illustrates some of the components included in the connecting device; the actual shape, size, location, and construction of these components are not subject to change. Figure 1 Due to limitations, the connecting device may also include, compared to Figure 1 More or fewer parts.

[0037] Furthermore, in this embodiment, the guide component 3 enables docking guidance, the conductive component 4 enables conductivity, the limiting component 5 and the locking component 6 enable limiting and fixing, and the support platform 7 enhances support, thereby enabling rapid connection of the switching equipment and ensuring a stable connection and good conductivity.

[0038] Specifically, the connection structure 2 includes a movable frame 201 and a connecting frame 202. The movable frame 201 is connected to the switch body 1 on one side and the connecting frame 202 is provided on the other side. The connecting frame 202 is connected to the mounting surface by bolts. A support platform 7 is provided at the lower end of the connecting frame 202 near the movable frame 201.

[0039] In this embodiment, the movable frame 201 drives the switch body 1 to dock with the connecting frame 202. The connecting frame 202 is fixed on the mounting surface, providing a connection base for the switch body 1 and ensuring a stable connection position.

[0040] Specifically, the guide assembly 3 includes a tapered protrusion 301 and a tapered groove 302. The tapered protrusion 301 is tapered, with its larger diameter end connected to the side of the connecting frame 202 near the movable frame 201. The surface of the tapered protrusion 301 is provided with multiple slides. The tapered groove 302 is tapered, with its smaller diameter end placed inside the movable frame 201 on the side away from the switch body 1. The inner wall of the tapered groove 302 is provided with multiple ball bearings 303 for engaging with the outer wall of the tapered protrusion 301.

[0041] As a preferred implementation, the conical protrusion 301 is inserted into the conical groove 302, and the ball bearing 303 rolls along the slide to guide the movement, so that the movable frame 201 and the connecting frame 202 can be quickly and accurately connected, reducing the connection time.

[0042] Example 2:

[0043] A conductive component 4 is provided based on embodiment 1.

[0044] Specifically, the conductive component 4 includes a conductive post 401 and a petal-shaped elastic contact 402, with one end of the conductive post 401 connected to the side of the connecting frame 202 near the movable frame 201.

[0045] In this embodiment, the conductive post 401 contacts the petal-shaped elastic contact 402 to achieve current conduction. As a key component for conduction, it provides a path for current transmission.

[0046] Specifically, one end of the petal-shaped elastic contact 402 is petal-shaped and abuts against the other end of the conductive post 401. The other end of the petal-shaped elastic contact 402 slides inside the sliding cavity 403. The end of the sliding cavity 403 away from the petal-shaped elastic contact 402 is placed inside the movable frame 201 on the side away from the switch body 1.

[0047] With this configuration, the petal-shaped elastic contact 402 slides within the sliding cavity 403, always maintaining close contact with the conductive post 401, ensuring good contact between the conductive post 401 and the petal-shaped elastic contact 402, and ensuring stable conductivity.

[0048] Example 3:

[0049] A limit component 5 is provided based on embodiment 2.

[0050] Specifically, the limiting component 5 includes a support wall 501, one end of which is connected to both sides of the movable frame 201 and the other end is rotatably connected to the middle of the large diameter end of the protrusion 502. Limiting grooves 503 are provided at the top and bottom of the middle of the small diameter end of the protrusion 502.

[0051] The protrusion 502 rotates around the support wall 501, and the limiting groove 503 cooperates with the locking block 601 to achieve limiting, thereby limiting the relative position of the movable frame 201 and the connecting frame 202.

[0052] Specifically, the locking assembly 6 includes a locking block 601, which is disposed inside both sides of the connecting frame 202. The lower end of the locking block 601 cooperates with the limiting groove 503 and the upper end is connected to one end of the spring 602. The other end of the spring 602 is connected to the inner top surface of both sides of the connecting frame 202. The spring 602 is provided with a damping 603.

[0053] In this embodiment, the locking block 601 is engaged in the limiting groove 503 under the elastic force of the spring 602, and the damping 603 slows down the movement speed of the locking block 601, thereby realizing the rapid locking of the movable frame 201 and the connecting frame 202, ensuring a firm connection and preventing loosening.

[0054] In actual use, the switch body 1 is first installed on one side of the movable frame 201 in the connecting structure 2 using bolts. Then, the connecting frame 202 is installed on the mounting surface using bolts around its perimeter. When the switch needs to be connected, the movable frame 201 is lifted and brought close to the connecting frame 202. At this time, the small-diameter end of the tapered protrusions 301 on the side of the connecting frame 202 near the movable frame 201 is inserted into the tapered grooves 302. The ball bearings 303 on the inner wall of the tapered grooves 302 cooperate with the sliding tracks on the outer wall of the tapered protrusions 301 to reduce friction. At the same time, the conductive post 401 connected in the middle on the side of the connecting frame 202 near the movable frame 201 abuts against the petal-shaped end of the petal-shaped elastic contact 402. Then, the other end of the petal-shaped elastic contact 402 slides inside the sliding cavity 403 and then passes through the movable frame 201 and is inserted into the interior of the switch body 1. As the conductive post 401 abuts and the petal-shaped elastic contact 402 moves, the petals of the petal-shaped elastic contact 402 contract and wrap around the end of the conductive post 401 away from the connecting frame 202 to conduct electricity. After the movable frame 201 and the connecting frame 202 are merged, the lower end of the movable frame 201 is placed on the upper surface of the support platform 7 for support. Then, the protrusion 502 is rotated so that the small diameter end of the protrusion 502 presses against the locking block 601. The locking block 601 is pressed and compresses the spring 602. Then, the spring 602 extends and pushes the locking block 601 into the limiting groove 503 at the small diameter end of the protrusion 502 for limiting. If the switch needs to be replaced, pull the handle on one side of the protrusion 502 so that the protrusion 502 presses against the locking block 601 and compresses the spring 602. At this time, after the protrusion 502 is disengaged from the locking block 601, the movable frame 201 can be pulled to remove it.

[0055] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-connect device for medium and low voltage switchgear, characterized in that: The device includes a switch body (1), which is bolted to one side of the movable frame (201) in the connecting structure (2). The connecting structure (2) is used for connecting the switch. The connecting structure (2) has guide components (3) arranged around its interior. The guide components (3) are used for docking when the connecting structure (2) is connected. The connecting structure (2) has conductive components (4) arranged around its center. The conductive components (4) are used to conduct electricity. The connecting structure (2) has limit components (5) and locking components (6) arranged on both sides. The limit components (5) and locking components (6) are used to limit the movement.

2. The quick connection device for medium and low voltage switchgear according to claim 1, characterized in that: The connection structure (2) includes a movable frame (201) and a connecting frame (202). The movable frame (201) is connected to the switch body (1) on one side and the connecting frame (202) is provided on the other side. The connecting frame (202) is connected to the mounting surface by bolts. A support platform (7) is provided at the lower end of the connecting frame (202) near the movable frame (201).

3. The quick connection device for medium and low voltage switchgear according to claim 2, characterized in that: The guide assembly (3) includes a tapered protrusion (301) and a tapered groove (302). The tapered protrusion (301) is tapered and its larger diameter end is connected to the side of the connecting frame (202) near the movable frame (201). The surface of the tapered protrusion (301) is provided with multiple slides. The tapered groove (302) is tapered and its smaller diameter end is placed inside the movable frame (201) on the side away from the switch body (1). The inner wall of the tapered groove (302) is provided with multiple balls (303) for cooperating with the outer wall of the tapered protrusion (301).

4. The quick connection device for medium and low voltage switchgear according to claim 3, characterized in that: The conductive component (4) includes a conductive post (401) and a petal-shaped elastic contact (402), one end of which is connected to the connecting frame (202) near the movable frame (201).

5. The quick connection device for medium and low voltage switchgear according to claim 4, characterized in that: One end of the petal-shaped elastic contact (402) is petal-shaped and abuts against the other end of the conductive post (401). The other end of the petal-shaped elastic contact (402) slides inside the sliding cavity (403). The end of the sliding cavity (403) away from the petal-shaped elastic contact (402) is placed inside the movable frame (201) on the side away from the switch body (1).

6. The quick connection device for medium and low voltage switchgear according to claim 5, characterized in that: The limiting component (5) includes a support wall (501), one end of which is connected to both sides of the movable frame (201) and the other end is rotatably connected to the middle of the large diameter end of the protrusion (502). Limiting grooves (503) are provided at the middle of the small diameter end of the protrusion (502).

7. The quick connection device for medium and low voltage switchgear according to claim 6, characterized in that: The locking assembly (6) includes a locking block (601), which is disposed inside both sides of the connecting frame (202). The lower end of the locking block (601) cooperates with the limiting groove (503) and the upper end is connected to one end of the spring (602). The other end of the spring (602) is connected to the inner top surface of both sides of the connecting frame (202). The spring (602) is provided with a damper (603).

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