Plugging device and power distribution cabinet

Abstract

The embodiment of the utility model provides a plugging device and a power distribution cabinet comprising the plugging device, and relates to the technical field of device plugging. The plugging and unplugging device is used for plugging and unplugging a plugging device on a frame body and comprises a first connecting rod, a second connecting rod and a third connecting rod. The first connecting rod and the second connecting rod are rotationally connected with the frame body and are in sliding connection, and the second connecting rod is used for driving the first connecting rod to rotate relative to the frame body; the third connecting rod is rotationally connected with the first connecting rod and used for being connected with a plug-in device, and the rotating connecting position of the first connecting rod and the third connecting rod is located between the rotating connecting position of the first connecting rod and the frame body and the sliding connecting position of the first connecting rod and the second connecting rod. The rotating axis of the third connecting rod relative to the first connecting rod, the rotating axis of the first connecting rod relative to the frame body and the rotating axis of the second connecting rod relative to the frame body are parallel. And the second connecting rod drives the first connecting rod to rotate, so that the process of plugging the plugging device into and out of the plugging device is more labor-saving.

Description

Technical Field

[0001] The present application relates to the technical field of device plugging and unplugging, and in particular to a plugging and unplugging device and a power distribution cabinet. Background Art

[0002] In the distribution cabinet of the uninterruptible power supply (UPS), a circuit breaker, such as a plug-and-pull molded case circuit breaker (PAP-MCCB), is usually provided. The circuit breaker can be installed by plugging, for example, plugging the circuit breaker into the inlet and outlet busbar. When the circuit breaker needs to be removed, it needs to be unplugged from the distribution cabinet.

[0003] However, the insertion and removal force required to install and remove the circuit breaker is very large, for example, the insertion and removal force may be hundreds of Newtons (N) or even thousands of Newtons (N), and it is very difficult to install and remove the circuit breaker by manual insertion and removal. Especially when installing and removing circuit breakers with large current capacity, the insertion and removal operation is difficult to perform, which seriously affects the installation and removal of the circuit breaker. Utility Model Content

[0004] The present application provides a plug-in device and a power distribution cabinet including the plug-in device. Installing and removing plug-in devices through the plug-in device saves more effort and facilitates the installation and removal of plug-in devices.

[0005] In order to achieve the above objectives, this application adopts the following technical solutions:

[0006] In a first aspect of the present application, a plug-in device is provided, which is used to plug and unplug a plug-in device on a frame, and the plug-in device includes a first connecting rod, a second connecting rod and a third connecting rod. The first connecting rod and the second connecting rod are both used for rotational connection with the frame, the first connecting rod is slidably connected with the second connecting rod, and the second connecting rod is used to drive the first connecting rod to rotate relative to the frame; the third connecting rod is rotationally connected with the first connecting rod, and the third connecting rod is used to connect the plug-in device. The rotational connection position of the first connecting rod and the third connecting rod is located between the rotational connection position of the first connecting rod and the frame and the sliding connection position of the first connecting rod and the second connecting rod. The rotation axis of the third connecting rod relative to the first connecting rod, the rotation axis of the first connecting rod relative to the frame, and the rotation axis of the second connecting rod relative to the frame are parallel to each other.

[0007] When it is necessary to install a plug-in device (for example, a circuit breaker) on the frame, the first connecting rod and the second connecting rod are rotatably connected to the frame, and the third connecting rod is connected to the plug-in device. The end of the second connecting rod facing away from the frame is pressed down to rotate the second connecting rod relative to the frame. The first connecting rod and the second connecting rod are slidably connected, and the second connecting rod can drive the first connecting rod to rotate around the frame during the rotation around the frame. Compared with the force application position of the first connecting rod on the second connecting rod (the resistance position in the lever principle), the force application position of the operator on the second connecting rod (the power position in the lever principle) is farther from the rotation connection position of the second connecting rod, that is, the power arm in the lever principle is greater than the resistance arm, so that the second connecting rod forms a labor-saving lever.

[0008] During the rotation of the first link, the third link will drive the plug-in device into the frame, so that the plug-in device is plugged in a specified position (for example, in and out of the busbar). The rotation connection position of the first link and the third link is located between the rotation connection position of the first link and the frame and the sliding connection position of the first link and the second link. In this way, compared with the force application position of the third link on the first link (the resistance position in the lever principle), the force application position of the second link on the first link (the power position in the lever principle) is farther from the rotation position of the first link, that is, the power arm in the lever principle is greater than the resistance arm, so that the first link forms a labor-saving lever.

[0009] The second connecting rod drives the first connecting rod to rotate, which is equivalent to the superposition of two labor-saving levers. When the operator applies a small force to the second connecting rod, a larger force can be output on the third connecting rod, which is convenient for plugging the plug-in device into the frame. In addition, when the plug-in device needs to be unplugged, the plug-in device can be unplugged from the frame by applying force in the opposite direction to the second connecting rod. The present application makes the process of installing and removing the plug-in device more labor-saving by driving the first connecting rod with the second connecting rod, and reduces the volume of the plug-in device under a certain labor-saving ratio.

[0010] In an optional embodiment, the first connecting rod and the second connecting rod are slidably connected via a sliding structure, the sliding structure includes a sliding shaft and a sliding groove, the sliding groove is arranged on the first connecting rod, the sliding shaft is arranged on the second connecting rod, the sliding shaft extends into the sliding groove, and the axis of the sliding shaft is parallel to the rotation axis of the second connecting rod relative to the frame.

[0011] When the second connecting rod drives the first connecting rod to rotate, the sliding shaft will slide in the sliding groove, and the outer wall surface of the sliding shaft will slide in contact with the wall surface of the sliding groove formed by the first connecting rod. The second connecting rod applies pressure to the first connecting rod through the sliding shaft, so that the first connecting rod and the second connecting rod can rotate relative to the frame while sliding relative to each other, and the rotating first connecting rod can drive the third connecting rod to move.

[0012] In an optional embodiment, one end of the third connecting rod is rotatably connected to the first connecting rod, and the other end is rotatably connected to the first connecting member, the first connecting member is used to connect the plug-in device, and the rotation axis of the first connecting member relative to the third connecting rod is parallel to the rotation axis of the third connecting rod relative to the first connecting rod.

[0013] One end of the third connecting rod is rotatably connected to the first connecting rod, and the other end is rotatably connected to the first connecting piece. The third connecting rod is connected to the plug-in device through the first connecting piece. In the process of the first connecting rod driving the third connecting rod to move, the first connecting piece can push and pull the plug-in device along the installation direction (for example, the horizontal direction), so that the plug-in device can move along the installation direction (inserted into the frame or pulled out from the frame along the installation direction), making the movement process of the plug-in device smoother and facilitating the loading and unloading of the plug-in device.

[0014] In an optional embodiment, a hook is rotatably connected to the first connecting member, a storage cavity is formed in the first connecting member, the hook is at least partially located in the storage cavity, and the hook can rotate between a hooking state and a storage state. In the hooking state, part of the hook is located outside the storage cavity and hooks the plug-in component. In the storage state, the hook is stored in the storage cavity.

[0015] When the plug-in device needs to be pulled to remove the plug-in device from the frame, the hook can be placed in a hooking state, in which the hook can be hooked on the plug-in device (for example, on the housing or connecting shaft of the plug-in device), and then the first connecting rod is driven to rotate by applying force to the second connecting rod. During the rotation of the first connecting rod, the third connecting rod is pulled, so that the third connecting rod pulls the plug-in device through the hook on the first connecting member, and the plug-in device can be removed from the frame. The hook is rotatably connected to the first connecting member, and when the hook is not needed, the hook can be rotatably stored in the storage cavity, reducing the possibility of the hook affecting other operation processes.

[0016] In an optional implementation, a groove is provided at the end of the first connecting member facing away from the third connecting rod, and the groove is used to accommodate the connecting shaft on the plug-in device.

[0017] When the plug-in device needs to be pushed so that it can be plugged into a designated position on the frame, the hook can be rotated to a storage state, in which the hook is located on the side of the groove close to the third connecting rod, so that the connecting shaft on the plug-in device is located in the groove, and the wall surface of the groove formed by the first connecting member abuts against the connecting shaft. By pushing the connecting shaft by the first connecting member, the plug-in device can be pushed into the frame and plugged into the designated position. In addition, the groove can play a limiting role to reduce the possibility of the first connecting member and the connecting shaft being separated from each other during the pushing process, so that the cooperation between the first connecting member and the connecting shaft is more stable, which is convenient for pushing the plug-in device.

[0018] In an optional embodiment, the plug-in device also includes a fourth connecting rod and an abutment plate. The fourth connecting rod is rotatably connected to the second connecting rod, and the rotation axis of the fourth connecting rod relative to the second connecting rod is parallel to the rotation axis of the second connecting rod relative to the frame; the abutment plate is connected to the fourth connecting rod, and the abutment plate is located on the same side of the fourth connecting rod and the second connecting rod.

[0019] When it is necessary to apply force to the second connecting rod to rotate the second connecting rod, the second connecting rod can be driven to rotate by applying force to the fourth connecting rod, that is, the fourth connecting rod is rotated, and the fourth connecting rod abuts against the abutment plate when rotating, and the abutment plate also abuts against the second connecting rod, and the fourth connecting rod drives the second connecting rod to rotate through the abutment plate. The fourth connecting rod is provided to make the operation of the plug-in device more labor-saving. In addition, when the plug-in device needs to be stored, the fourth connecting rod and the second connecting rod can be folded in half to reduce the volume of the plug-in device and reduce the space occupied by the plug-in device when stored.

[0020] In an optional implementation, the end of the fourth connecting rod and the end of the second connecting rod are both rotatably connected to the abutment plate.

[0021] Through the above-mentioned design, the activities of the fourth connecting rod and the second connecting rod can be made more flexible, and the abutment plate can be rotated according to needs, so that the operation of the plug-in device is more convenient.

[0022] In an optional embodiment, the second connecting rod has a first side and a second side back to back, and the distribution direction of the first side and the second side is parallel to the rotation axis of the fourth connecting rod relative to the second connecting rod. The first connecting rod is located on the first side and the fourth connecting rod is located on the second side.

[0023] The first link, the second link and the fourth link are staggeredly arranged. When the plug-in device needs to be folded, the first link and the fourth link can be respectively rotated to the two sides (the first side and the second side) of the second link, thereby reducing the possibility of mutual interference among the first link, the second link and the fourth link during movement, making the plug-in device smaller in size after folding, and facilitating storage, carrying and transportation of the plug-in device.

[0024] In an optional embodiment, the plug-in device includes an expanded state and a folded state. In the expanded state, the length direction of the first connecting rod intersects with the length direction of the second connecting rod, and the end of the fourth connecting rod away from the abutment plate and the end of the second connecting rod away from the abutment plate are respectively located on both sides of the abutment plate. In the folded state, the length direction of the first connecting rod is parallel to the length direction of the second connecting rod, and the end of the fourth connecting rod away from the abutment plate and the end of the second connecting rod away from the abutment plate are located on the same side of the abutment plate.

[0025] Multiple structures in the plug-in device are rotatably connected. When the plug-in device needs to be plugged in or out, the plug-in device can be adjusted to the unfolded state, the fourth connecting rod is rotated to drive the second connecting rod to rotate, the second connecting rod drives the first connecting rod to rotate, and the third connecting rod is driven to move through the first connecting rod to achieve the plug-in and pull-out of the plug-in device. When the plug-in and pull-out are completed, the plug-in device can be removed from the frame, the first connecting rod, the second connecting rod and the fourth connecting rod are folded to make the first connecting rod and the second connecting rod parallel, and the end of the fourth connecting rod away from the abutment plate and the end of the second connecting rod away from the abutment plate are located on the same side of the abutment plate, so as to complete the folding of the plug-in device. The folded plug-in device is compact in size, occupies little space, and is easy to store, carry and transport.

[0026] In an optional embodiment, an avoidance groove is provided on the first connecting rod, and in the folded state, part of the abutment plate is located in the avoidance groove.

[0027] When the plug-in device is in a folded state, the first connecting rod and the second connecting rod are parallel, and the abutment plate will interfere with the first connecting rod. By providing an avoidance groove, the first connecting rod can have a structure for avoiding the abutment plate, so that part of the abutment plate is located in the avoidance groove, further reducing the size of the plug-in device in the folded state and making the structure of the plug-in device more compact.

[0028] In an optional embodiment, the end of the first connecting rod is rotatably connected to a second connecting member, the second connecting member is used to connect to the frame body, and the end of the second connecting rod is rotatably connected to a third connecting member, the third connecting member is used to connect to the frame body.

[0029] The first connecting rod can rotate relative to the second connecting member, and the second connecting rod can rotate relative to the third connecting member. When installing the plug-in device, the second connecting member and the third connecting member can be connected to the frame, and when disassembling the plug-in device, the second connecting member and the third connecting member can be removed from the frame. The second connecting member and the third connecting member are provided to facilitate the connection and separation between the plug-in device and the frame.

[0030] In an optional embodiment, the plug-in device further includes a fifth connecting rod, a sixth connecting rod and a seventh connecting rod. The fifth connecting rod is rotatably connected to the second connecting member, the rotation axis of the fifth connecting rod relative to the second connecting member coincides with the rotation axis of the first connecting rod relative to the second connecting member, and the fifth connecting rod is fixedly connected to the first connecting rod via a connecting beam; the sixth connecting rod is rotatably connected to the third connecting member, the rotation axis of the sixth connecting rod relative to the third connecting member coincides with the rotation axis of the second connecting rod relative to the third connecting member, the sixth connecting rod is slidably connected to the fifth connecting rod, and the sixth connecting rod is used to drive the fifth connecting rod to rotate relative to the third connecting member; the seventh connecting rod is rotatably connected to the sixth connecting rod, the rotation axis of the seventh connecting rod relative to the sixth connecting rod coincides with the rotation axis of the third connecting rod relative to the second connecting rod, and the seventh connecting rod is used to connect the plug-in device.

[0031] When the plug-in device needs to be plugged into the frame, the sixth connecting rod and the second connecting rod can be rotated to rotate relative to the third connecting member, and the fifth connecting rod and the first connecting rod are respectively driven to rotate by the sixth connecting rod and the second connecting rod, and the seventh connecting rod and the third connecting rod are respectively driven to rotate by the fifth connecting rod and the first connecting rod, and the plug-in device is driven to move by the seventh connecting rod and the third connecting rod to achieve the insertion or extraction of the plug-in device. The seventh connecting rod and the third connecting rod are both connected to the plug-in device, which increases the force points on the plug-in device, makes the movement process of the plug-in device more stable, and reduces the possibility of swinging of the plug-in device during the movement.

[0032] In a second aspect of the present application, a power distribution cabinet is provided, which includes a frame, plug-in components and the above-mentioned plug-in device, the plug-in components include a circuit breaker, the circuit breaker is installed on the frame, and the plug-in device is used to plug and unplug the circuit breaker on the frame.

[0033] The power distribution cabinet provided in the present application includes the above-mentioned plug-in device. Therefore, the power distribution cabinet provided in the present application and the plug-in device of the above-mentioned technical solution can solve the same technical problems and have the same technical effects, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic diagram of the structure of a power distribution cabinet provided in an embodiment of the present application;

[0035] Figure 2 A schematic diagram of the overall structure of the plugging and unplugging device provided in an embodiment of the present application;

[0036] Figure 3 A schematic diagram of a plug-in device provided in an embodiment of the present application for pulling out a plug-in component;

[0037] Figure 4 A schematic diagram of the plug-in device provided in an embodiment of the present application being inserted into a plug-in device;

[0038] Figure 5 A schematic diagram of the structure of a first connecting member provided in an embodiment of the present application;

[0039] Figure 6 A schematic diagram of the structure of the hook provided in the embodiment of the present application in a hooked state;

[0040] Figure 7 A schematic diagram of the structure of the hook provided in the embodiment of the present application in a storage state;

[0041] Figure 8 A schematic diagram of the structure of the plug-in device provided in an embodiment of the present application in an unfolded state;

[0042] Fig. 9 A schematic diagram of the structure of another abutment plate provided in an embodiment of the present application;

[0043] Fig.10 A schematic diagram of the structure of the plug-in device provided in an embodiment of the present application in a folded state;

[0044] Fig.11 A schematic diagram of the distribution of the first side and the second side of the second connecting rod provided in an embodiment of the present application.

[0045] Reference numerals:

[0046] 100-power distribution cabinet;

[0047] 200-frame; 201-in and out busbar;

[0048] 300-plug device; 301-connecting part; 302-connecting shaft; 303-installation groove;

[0049] 400- plug and unplug device;

[0050] 1-first connecting rod; 11-sliding groove; 12-first connecting member; 121-storage cavity; 122-groove; 13-hook; 14-protruding part; 141-avoidance groove; 15-second connecting member;

[0051] 2-second connecting rod; 21-sliding shaft; 22-first side; 23-second side; 24-third connecting member;

[0052] 3- Third connecting rod;

[0053] 4- fourth connecting rod;

[0054] 5-abutment plate; 51-connection plate;

[0055] 6-fifth connecting rod; 61-connecting beam;

[0056] 7-sixth connecting rod;

[0057] 8-seventh connecting rod;

[0058] 9-eighth connecting rod; 91-handle. DETAILED DESCRIPTION

[0059] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0060] In this application, the terms "first", "second", etc. are used only for descriptive purposes to distinguish one element from another element, and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features.

[0061] In the present application, unless otherwise clearly specified or limited, "plurality" means two or more.

[0062] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0063] In addition, in this application, the words "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "for example" in this application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0064] In the drawings of the embodiments of the present application, solid structures such as components and assemblies are represented by guide lines; hollow structures such as openings, holes, spaces, and cavities are represented by guide lines with arrows.

[0065] The present application embodiment provides a power distribution cabinet 100 (or a power distribution box, a power distribution rack), referring to Figure 1 , Figure 1 The structure of a power distribution cabinet 100 is shown as an example. The power distribution cabinet 100 may be a power distribution cabinet 100 of an uninterruptible power supply (UPS) or a power distribution cabinet 100 of other power systems. The power distribution cabinet 100 includes a frame 200 and a plug-in device 300. The frame 200 may be a storage rack, a mounting rack, etc. The frame 200 is used to install various devices and components inside the power distribution cabinet 100. For example, the plug-in device 300 may be installed on the frame 200. The present application does not limit the specific structure of the frame 200.

[0066] In some examples, reference Figure 1 The power distribution cabinet 100 may be provided with a plug-in device 400 , which is used to plug (insert or remove) the plug-in device 300 on the frame 200 .

[0067] The plug-in device 300 is a device that can be installed by plugging. When the plug-in device 300 needs to be removed, the plug-in device 300 can be pulled out from the installation position. Figure 1The plug-in device 300 may include a circuit breaker (for example, a plug-in molded case circuit breaker), which is installed on the frame 200 by plugging. For example, the circuit breaker is provided with a connecting portion 301 (the connecting portion 301 may be a plurality of input stages and output stages), and the frame 200 is provided with an input / output busbar 201. The circuit breaker is plugged into the input / output busbar 201 through the connecting portion 301, that is, the circuit breaker is electrically connected to the input / output busbar 201 by plugging.

[0068] The circuit breaker has a large mass, and the connecting part 301 needs to be tightly connected to the inlet and outlet busbar 201. The plugging and unplugging force required for installing (inserting) and removing (pulling out) the circuit breaker is very large, and the plugging and unplugging force may reach hundreds of Newtons (N) or even thousands of Newtons (N). It is very difficult to manually plug and unplug the circuit breaker. The circuit breaker is plugged and unplugged by the plug-in device 400, which facilitates the loading and unloading of the plug-in component 300.

[0069] In one example, the plug-in device 400 may be connected to the frame 200 .

[0070] In another example, the plug-in device 400 can be connected to the frame 200 during the process of installing and removing the plug-in device 300 , and the plug-in device 400 can be separated from the frame 200 when the plug-in device 300 is installed or removed.

[0071] The present application also provides a plugging and unplugging device 400, referring to Figure 2 , Figure 2 The structure of the plug-in device 400 is shown as an example.

[0072] Among them, refer to Figure 3 and Figure 4 The exemplary plugging and unplugging device 400 can be used to plug and unplug the plugging device 300 on the frame 200. Figure 3 The plug-in device 400 is shown as an example in the state of pulling out the plug component 300 from the frame 200. Figure 4 The state in which the plugging device 400 inserts the plug component 300 into the frame 200 is exemplarily shown.

[0073] The frame 200 includes but is not limited to the frame 200 of the power distribution cabinet 100, and the frame 200 may also be a shelf or other structure capable of installing the plug-in device 300. The plug-in device 300 includes but is not limited to a circuit breaker, and the plug-in device 300 may also be other devices that are assembled and unassembled by plugging and unplugging.

[0074] Regarding the connection and separation between the plug-in device 300 and the frame 200, in one example, the plug-in device 300 can be connected to and separated from the frame 200 itself. For example, a space for accommodating the plug-in device 300 is provided on the frame 200, and the plug-in device 300 can be inserted into or pulled out of the space. In this example, the plug-in device 300 does not need to be connected to other structures during the connection process.

[0075] In another example, the plug-in device 300 can be plugged into and disconnected from a connecting structure on the frame 200 (or inside the frame 200), for example, a circuit breaker is plugged into and disconnected from an input and output busbar 201 inside the frame 200, and for another example, a shell of the plug-in device 300 is plugged into and disconnected from a snap-in structure on the frame 200.

[0076] The present application does not impose any specific restrictions on the positional relationship between the plug-in device 300 and the frame 200 during the plug-in and unplugging process. In one example, the plug-in device 300 is pulled out of the frame 200 by pulling out the entire plug-in device 300. In another example, the plug-in device 300 can be separated from the connection structure in the frame 200. In this example, the plug-in device 300 that has been pulled out can be partially or completely located in the frame 200.

[0077] The plug-in device 300 is plugged into the frame 200. In one example, the entire plug-in device 300 can be inserted into the space in the frame 200. In another example, the plug-in device 300 can be connected to the connection structure in the frame 200. In this example, the plug-in device 300 can extend outside the frame 200.

[0078] Reference Figure 2 and Figure 3 The plug-in device 400 includes a first connecting rod 1 and a second connecting rod 2, both of which are used to be rotatably connected to the frame 200, and the rotation axis of the first connecting rod 1 relative to the frame 200 is parallel to the rotation axis of the second connecting rod 2 relative to the frame 200.

[0079] For example, refer to Figure 2 and Figure 3, the plug-in device 400 may include a second connector 15 and a third connector 24, the end of the first connecting rod 1 is rotatably connected to the second connecting rod 15 (for example, hinged), the end of the second connecting rod 2 is rotatably connected to the third connecting rod 24 (for example, hinged), and the second connecting rod 15 and the third connecting rod 24 are used to connect the frame 200 (for example, by bolt connection, clamping or welding). That is, the rotation axis of the first connecting rod 1 relative to the second connecting rod 15 is parallel to the rotation axis of the second connecting rod 2 relative to the third connecting rod 24. By providing the second connecting rod 15 and the third connecting rod 24, the connection and separation between the plug-in device 400 and the frame 200 are facilitated.

[0080] In another example, the plug-in device 400 may not include the second connecting member 15 and the third connecting member 24 , and the first connecting rod 1 and the second connecting rod 2 are both hinged to the frame body 200 .

[0081] Reference Figure 2 and Figure 3 The first link 1 is slidably connected to the second link 2, the first link 1 and the second link 2 can slide relative to each other, and the second link 2 can drive the first link 1 to rotate, that is, during the rotation of the second link 2 relative to the frame 200 (or relative to the third connecting member 24), it can drive the first link 1 to rotate relative to the frame 200 (or relative to the second connecting member 15).

[0082] There are many structures that can be realized for the sliding connection between the first connecting rod 1 and the second connecting rod 2. In one example, the first connecting rod 1 and the second connecting rod 2 are slidably connected through a sliding structure, and the sliding structure may include a sliding shaft 21 and a sliding groove 11. The sliding groove 11 is provided on the first connecting rod 1, and the sliding groove 11 extends along the length direction of the first connecting rod 1. The sliding groove 11 can pass through both sides of the first connecting rod 1. The sliding shaft 21 is fixedly connected (for example, welded, riveted, etc.) to the second connecting rod 2, and the sliding shaft 21 extends into the sliding groove 11. The sliding shaft 21 can slide and rotate in the sliding groove 11. Among them, the axis of the sliding shaft 21 is parallel to the rotation axis of the second connecting rod 2 relative to the frame 200.

[0083] Through the above-mentioned design method, when the second connecting rod 2 drives the first connecting rod 1 to rotate, the sliding shaft 21 will slide in the sliding groove 11, and the outer wall surface of the sliding shaft 21 will slide in contact with the wall surface of the sliding groove 11 formed by the first connecting rod 1. The second connecting rod 2 applies pressure to the first connecting rod 1 through the sliding shaft 21, so that the second connecting rod 2 can drive the first connecting rod 1 to rotate.

[0084] In other examples, the slide groove 11 may not pass through both sides of the first connecting rod 1 , and the notch of the slide groove 11 is arranged toward the sliding shaft 21 so that the sliding shaft 21 extends into the slide groove 11 .

[0085] In other examples, the sliding shaft 21 may be provided on the second connecting rod 2 , the sliding groove 11 may be provided on the first connecting rod 1 , the sliding shaft 21 extends into the sliding groove 11 , and the sliding shaft 21 can slide and rotate in the sliding groove 11 .

[0086] In other examples, the first connecting rod 1 and the second connecting rod 2 are slidably connected via a slider and a slide rail, the slide rail can be provided on the first connecting rod 1, the slider is rotatably connected to the second connecting rod 2, and the slider can extend along the length direction of the slide rail. The rotation axis of the second connecting rod 2 relative to the slider is parallel to the rotation axis of the second connecting rod 2 relative to the frame 200.

[0087] To connect with the plug device 300, refer to Figure 2 and Figure 3 The plug-in device 400 further includes a third connecting rod 3, which is used to connect the plug-in device 300. The third connecting rod 3 is rotatably connected (e.g., hinged) to the first connecting rod 1, and the rotation axis of the third connecting rod 3 relative to the first connecting rod 1, the rotation axis of the first connecting rod 1 relative to the frame 200, and the rotation axis of the second connecting rod 2 relative to the frame 200 are parallel to each other. The rotation connection position of the third connecting rod 3 and the first connecting rod 1 is located between the rotation connection position of the first connecting rod 1 and the frame 200 and the sliding connection position of the first connecting rod 1 and the second connecting rod 2.

[0088] The rotational connection position between the first connecting rod 1 and the third connecting rod 3 refers to the position on the first connecting rod 1 for connecting with the third connecting rod 3, for example Figure 2 The position indicated by the arrow P1. Figure 2 The first connecting rod 1 and the third connecting rod 3 are rotationally connected through a first rotational connection structure, and the rotational connection position of the third connecting rod 3 and the first connecting rod 1 refers to the position of the above-mentioned first rotational connection structure.

[0089] Regarding the rotational connection position of the first connecting rod 1 and the frame 200, in the example in which the first connecting rod 1 is hinged on the frame 200, the position may refer to the hinged position of the first connecting rod 1 and the frame 200. In the example in which the first connecting rod 1 is rotationally connected to the second connecting member 15, refer to Figure 2 The first connecting rod 1 and the second connecting member 15 are rotatably connected via a second rotatable connection structure. The rotatable connection position of the first connecting rod 1 and the frame 200 refers to the position of the second rotatable connection structure, for example Figure 2 The position indicated by the arrow P2.

[0090] The sliding connection position between the first link 1 and the second link 2 refers to the position of the sliding structure between the first link 1 and the second link 2, for example, refer to Figure 2, a slide groove 11 is provided on the first connecting rod 1, and a slide shaft 21 is provided on the second connecting rod 2. The position of the slide groove 11 on the first connecting rod 1 (or the position where the slide shaft 21 slides) is the sliding connection position between the first connecting rod 1 and the second connecting rod 2, or in other words, the range of the sliding path of the slide shaft 21 is included in the range of the sliding connection position. For example, Figure 2 The position indicated by the arrow P3 is the position of the dotted line frame. The position indicated by the arrow P1 is located between the position indicated by the arrow P2 and the position indicated by the arrow P3.

[0091] For example, refer to Figure 3 and Figure 4 , the part of the frame 200 that is rotatably connected to the first connecting rod 1 (or the part that is connected to the second connecting member 15) is located above (or at the top) of the plug device 300, and the part of the frame 200 that is rotatably connected to the second connecting rod 2 (or the part that is connected to the third connecting member 24) is located below (or at the bottom) of the plug device 300. When the third connecting rod 3 is connected to the plug device 300, the third connecting rod 3 can be located between the above two parts of the frame 200 in the height direction, that is, the third connecting rod 3 can be located between the second connecting member 15 and the third connecting member 24 in the height direction.

[0092] When the plug-in device 400 of the present application is used and the plug-in device 300 needs to be installed on the frame 200, the first connecting rod 1 and the second connecting rod 2 can be rotatably connected to the frame 200, and the third connecting rod 3 can be connected to the plug-in device 300. The end of the second connecting rod 2 facing away from the frame 200 is pressed down, so that the second connecting rod 2 rotates clockwise around the frame 200, and the first connecting rod 1 is driven to rotate clockwise around the frame 200. Compared with the force application position of the first connecting rod 1 on the second connecting rod 2 (the resistance position in the lever principle), the force application position of the operator on the second connecting rod 2 (the power position in the lever principle) is farther from the rotation connection position of the second connecting rod 2, that is, the power arm in the lever principle is greater than the resistance arm, so that the second connecting rod 2 forms a first-level labor-saving lever.

[0093] During the rotation of the first link 1, the third link 3 will drive the plug-in device 300 into the frame 200. The connection position of the third link 3 and the first link 1 is located between the connection position of the first link 1 and the frame 200 and the connection position of the first link 1 and the second link 2. In this way, compared with the force position of the third link 3 on the first link 1 (the resistance position in the lever principle), the force position of the second link 2 on the first link 1 (the power position in the lever principle) is farther from the rotation position of the first link 1. That is, the power arm in the lever principle is greater than the resistance arm, so that the first link 1 forms a second-level labor-saving lever.

[0094] In addition, when the plug-in device 300 needs to be pulled out, the plug-in device 300 can be pulled out from the frame 200 by applying a reverse force to the second connecting rod 2 (rotating counterclockwise).

[0095] The second connecting rod 2 drives the first connecting rod 1 to rotate, which is equivalent to the superposition of two-stage labor-saving levers. When the operator applies a small force to the second connecting rod 2, a large force can be output on the third connecting rod 3, which is convenient for plugging and unplugging the plug device 300 on the frame 200. By driving the first connecting rod 1 to rotate by the second connecting rod 2, the labor-saving ratio is increased (for example, under a certain size, the labor-saving ratio can be greater than 10:1), making the process of installing and removing the plug device 300 more labor-saving.

[0096] If the plugging and unplugging device only includes a primary labor-saving lever, in order to improve the labor-saving ratio, the power arm of the labor-saving lever needs to be extended, resulting in a larger size of the plugging and unplugging device. By adopting the solution of the present application, the plugging and unplugging device 400 of the present application reduces the volume of the plugging and unplugging device 400 when the labor-saving ratio is constant, making the structure of the plugging and unplugging device 400 more compact.

[0097] The third connecting rod 3 can be connected to the plug device 300 in a variety of different ways. For example, the third connecting rod 3 can be tied to the plug device 300 by a rope chain, or the third connecting rod 3 can be hung on the plug device 300 by a hook structure. When the plug device 300 needs to be pushed, the third connecting rod 3 can abut against the wall of the plug device 300 (the wall facing the plugging device 400).

[0098] In order to enable the plug device 300 to move stably, refer to Figure 3 and Figure 4 One end of the third connecting rod 3 is rotatably connected to the first connecting rod 1, and the other end is rotatably connected to the first connecting member 12. The rotation axis of the first connecting member 12 relative to the third connecting rod 3 is parallel to the rotation axis of the third connecting rod 3 relative to the first connecting rod 1. The first connecting member 12 is used to connect with the plug-in device 300, that is, the third connecting rod 3 is connected to the plug-in device 300 through the first connecting member 12. In the process of the first connecting rod 1 driving the third connecting rod 3 to move, the first connecting member 12 can plug and unplug the plug-in device 300 along the installation direction (for example, the horizontal direction), so that the plug-in device 300 can move along the installation direction, and the movement process of the plug-in device 300 is smoother, which is convenient for loading and unloading the plug-in device 300.

[0099] In the example in which the third connecting rod 3 is connected to the plug-in device 300 via the first connecting member 12 , the first connecting member 12 may be hooked on the plug-in device 300 . Figure 5 The structure of the first connecting member 12 is shown as an example. Figure 5 A hook 13 is provided on the first connecting member 12 , and the hook 13 is used to hook on the plug-in component 300 .

[0100] In order to facilitate the storage of the hook 13, refer to Figure 5 The first connecting member 12 has a receiving cavity 121 formed therein, the hook 13 is rotatably connected to the first connecting member 12 (for example, rotatably connected by a rotating shaft, hinged, etc.), and the hook 13 is at least partially located in the receiving cavity 121. The hook 13 has a hooking state and a receiving state, and the hook 13 can rotate between the hooking state and the receiving state. Figure 6 The hooking state of the hook 13 is shown as an example. Figure 7 The storage state of the hook 13 is exemplarily shown.

[0101] In the hook state, refer to Figure 6 , a part of the hook 13 is located in the storage cavity 121, and the other part is located outside the storage cavity 121. The part of the hook 13 located in the storage cavity 121 is rotatably connected to the first connecting member 12, and the part of the hook 13 located in the storage cavity 121 is used to hook the plug device 300. In the storage state, refer to Figure 7 The hook 13 is received in the receiving cavity 121 by rotation.

[0102] The storage cavity 121 may be any cavity that can be hooked and rotated out or in, and the present application does not impose any specific limitation on the structure of the storage cavity 121 .

[0103] Reference Figure 6 and Figure 7 The plug device 300 of the example may be provided with a connecting shaft 302, and the connecting shaft 302 may be provided on the housing of the plug device 300. For example, the housing of the plug device 300 may have a mounting groove 303, and the connecting shaft 302 may be provided in the mounting groove 303. The hook 13 may be hooked on the connecting shaft 302, and the first connecting member 12 may extend into the mounting groove 303. When the plug device 300 needs to be pushed by the first connecting member 12, the first connecting member 12 may abut against the connecting shaft 302.

[0104] In other examples, the connecting shaft 302 may be located outside the housing of the plug device 300, that is, after the plug device 400 is installed on the frame 200, the connecting shaft 302 is located on a side of the plug device 300 close to the plug device 400, and the connecting shaft 302 is connected to the housing of the plug device 300 through a connecting frame or a connecting rod. The present application does not specifically limit the location of the connecting shaft 302.

[0105] In order to reduce the possibility of the first connecting member 12 being separated from the connecting shaft 302 during the process of pushing the connecting shaft 302, refer to Figure 6The end of the first connecting member 12 away from the third connecting rod 3 is provided with a groove 122, the groove 122 is recessed toward the third connecting rod 3, and the groove 122 is used to accommodate the connecting shaft 302 on the plug-in device 300. In the storage state, refer to Figure 7 The groove 122 is located on the side of the hook 13 away from the third connecting rod 3, and the wall of the groove 122 formed by the first connecting member 12 is used to abut against the connecting shaft 302. The groove 122 can be a "U"-shaped groove, a "V"-shaped groove, a trapezoidal groove, etc., and the present application does not specifically limit the structure of the groove 122.

[0106] When the plug-in device 300 needs to be pulled out from the frame 200, the hook 13 can be placed in a hooking state, in which the hook 13 can be hooked on the connecting shaft 302 of the plug-in device 300, and then force is applied to the second connecting rod 2 to drive the first connecting rod 1 to rotate. During the rotation of the first connecting rod 1, the third connecting rod 3 is pulled, so that the third connecting rod 3 pulls the plug-in device 300 through the hook 13 on the first connecting member 12 until the plug-in device 300 is pulled out.

[0107] When the plug-in device 300 needs to be plugged into a specified position on the frame 200, the hook 13 can be rotated to a storage state. In this state, the hook 13 is located in the storage cavity 121, so that the wall surface of the groove 122 formed by the first connecting member 12 abuts against the connecting shaft 302. By pushing the connecting shaft 302 by the first connecting member 12, the plug-in device 300 can be pushed into the frame 200 and plugged into the specified position.

[0108] In other examples, the connecting shaft 302 may not be provided on the plug-in device 300 , and the hook 13 is hooked on the housing of the plug-in device 300 .

[0109] In other examples, the hook 13 may be fixedly connected to the first connecting member 12 .

[0110] In other examples, the first connecting member 12 may not be provided with the hook 13 , and the first connecting member 12 and the plug-in component 300 are fixedly connected by bolts, or the first connecting member 12 and the plug-in component 300 are snap-connected.

[0111] In order to make the plugging and unplugging process more labor-saving, the power arm of the plugging and unplugging device 400 can be extended, referring to Figure 8 , Figure 8The structure of one side of the plug-in device 400 is shown as an example, and the plug-in device 400 may also include a fourth connecting rod 4 and an abutment plate 5. The fourth connecting rod 4 is rotatably connected to the second connecting rod 2, and the rotation axis of the fourth connecting rod 4 relative to the second connecting rod 2 is parallel to the rotation axis of the second connecting rod 2 relative to the frame 200 (or the third connecting member 24). The abutment plate 5 is connected to the fourth connecting rod 4, and the abutment plate 5 is located on the same side of the fourth connecting rod 4 and the second connecting rod 2, or in other words, the abutment plate 5 is located on one side of the rotation axis of the fourth connecting rod 4 relative to the second connecting rod 2, and the fourth connecting rod 4 can drive the second connecting rod 2 to rotate through the abutment plate 5.

[0112] exist Figure 8 In the illustrated embodiment, the abutment plate 5 is located at the lower side (lower side in the drawing) of the fourth link 4 and the second link 2, and when the fourth link 4 is pressed down to rotate, the fourth link 4 can drive the second link 2 to rotate through the abutment plate 5. In other embodiments, the abutment plate 5 can be located at the upper side (upper side in the drawing) of the fourth link 4 and the second link 2, and when the fourth link 4 is lifted up, the fourth link 4 drives the second link 2 to rotate through the abutment plate 5.

[0113] The structure of the abutment plate 5 can be various. In one example, refer to Figure 8 As shown in , the abutment plate 5 can be a straight plate. In this example, when the second link 2 and the fourth link 4 abut against the abutment plate 5 at the same time, the length direction of the second link 2 is parallel to the length direction of the fourth link 4. In another example, referring to Fig. 9 As shown in the Fig. 9 The structure in which the abutment plate 5 is a “V”-shaped plate is exemplified. In this example, when the second connecting rod 2 and the fourth connecting rod 4 abut against the abutment plate 5 at the same time, the length direction of the second connecting rod 2 intersects with the length direction of the fourth connecting rod 4 .

[0114] For example, refer to Figure 8 The end of the fourth connecting rod 4 and the end of the second connecting rod 2 are both rotatably connected to the abutment plate 5, which can make the fourth connecting rod 4 and the second connecting rod 2 more flexible and make the operation of the plug-in device 400 more convenient. Among them, two connecting plates 51 (refer to 3) are arranged on the abutment plate 5, and the end of the fourth connecting rod 4 and the end of the second connecting rod 2 are located between the two connecting plates 51.

[0115] In other examples, the abutment plate 5 is fixedly connected to the fourth link 4, and the abutment plate 5 extends from the fourth link 4 to one side of the second link 2. Alternatively, the abutment plate 5 is fixedly connected to the second link 2, and the abutment plate 5 extends from the second link 2 to one side of the fourth link 4.

[0116] The plug-in device 400 has multiple structures that are rotatably connected, and the plug-in device 400 can include an unfolded state and a folded state. Figure 8 The expanded state of the plug-in device 400 is shown as an example. Fig.10 The folded state of the plug-in device 400 is shown as an example.

[0117] In the expanded state, refer to Figure 8 The length direction of the first link 1 intersects with the length direction of the second link 2, the end of the fourth link 4 away from the abutment plate 5 and the end of the second link 2 away from the abutment plate 5 are respectively located on both sides of the abutment plate 5 (on both sides of the dotted line indicated by the arrow L), and the length direction of the second link 2 is parallel to the length direction of the fourth link 4.

[0118] In the example where the abutment plate 5 is a "V"-shaped plate, refer to Fig. 9 When the plug-in device 400 is in the unfolded state, the end of the fourth link 4 away from the abutment plate 5 and the end of the second link 2 away from the abutment plate 5 are respectively located on both sides of the abutment plate 5 (on both sides of the dotted line indicated by the arrow L), and the length direction of the second link 2 intersects with the length direction of the fourth link 4.

[0119] Among them, refer to Figure 8 and Fig. 9 The dotted line indicated by the arrow L is the boundary between one side of the abutment plate 5 and the other side.

[0120] In the folded state, refer to Fig.10 , the length direction of the first link 1 is parallel to the length direction of the second link 2, the end of the fourth link 4 away from the abutment plate 5 and the end of the second link 2 away from the abutment plate 5 are located on the same side of the abutment plate 5, and in the folded state, the length direction of the second link 2 is parallel to the length direction of the fourth link 4. That is, when the plug-in device 400 needs to be stored, the first link 1 and the second link 2 can be folded, and the fourth link 4 and the second link 2 can be folded in half, so as to reduce the volume of the plug-in device 400 and the space occupied by the plug-in device 400, thereby facilitating the storage, carrying and transportation of the plug-in device 400.

[0121] It can also be understood that in the expanded state, refer to Figure 8 , the end of the fourth link 4 away from the abutment plate 5 and the end of the second link 2 away from the abutment plate 5 are away from each other. Fig.10 , the end of the fourth connecting rod 4 facing away from the abutting plate 5 and the end of the second connecting rod 2 facing away from the abutting plate 5 are close to each other.

[0122] In the example where the plug device 400 includes the third connector 24, in the unfolded state, Figure 8 , the end of the fourth connecting rod 4 away from the abutment plate 5 is located on the side of the abutment plate 5 away from the third connecting member 24. In the folded state, refer to Fig.10 The end of the fourth connecting rod 4 facing away from the abutting plate 5 is located on a side of the abutting plate 5 close to the third connecting member 24 .

[0123] When the plug-in device 400 needs to be folded, the possibility of mutual interference between the first link 1, the second link 2 and the fourth link 4 during movement is reduced. Fig.11 The second connecting rod 2 has a first side 22 and a second side 23 which are back to back. Fig.11 The distribution positions of the first side 22 and the second side 23 are shown as examples. The distribution direction of the first side 22 and the second side 23 is parallel to the rotation axis of the fourth connecting rod 4 relative to the second connecting rod 2. The first connecting rod 1 is located on the first side 22, and the fourth connecting rod 4 is located on the second side 23. By staggering the first connecting rod 1, the second connecting rod 2, and the fourth connecting rod 4, the plug-in device 400 after folding is made smaller, which is convenient for storing, carrying, and transporting the plug-in device 400.

[0124] When the plug-in device 400 is in the folded state, refer to Fig.10 , the first connecting rod 1 and the second connecting rod 2 are parallel, and the abutment plate 5 will interfere with the first connecting rod 1, affecting the placement of the first connecting rod 1. In order to reduce the possibility of the abutment plate 5 interfering with the first connecting rod 1, an avoidance groove 141 may be provided on the first connecting rod 1, and in the folded state, part of the abutment plate 5 is located in the avoidance groove 141. By providing the avoidance groove 141, the first connecting rod 1 can have a structure for avoiding the abutment plate 5, so that part of the abutment plate 5 is stored in the avoidance groove 141, further reducing the size of the plug-in device 400 in the folded state, and making the structure of the plug-in device 400 more compact.

[0125] In the example where the avoidance groove 141 is provided on the first connecting rod 1, refer to Fig.10 The first connecting rod 1 is provided with a protruding portion 14, which includes a convex surface and a concave surface arranged back to back, the convex surface protrudes out of the first connecting rod 1, and the concave surface forms an avoidance groove 141. In the folded state, the protruding portion 14 protrudes toward the side away from the abutment plate 5. The third connecting rod 3 can be rotatably connected to the protruding portion 14, so that the third connecting rod 3 avoids the second connecting rod 2 and the fourth connecting rod 4.

[0126] In other examples, the third connecting rod 3 may also be rotatably connected to other positions on the first connecting rod 1 .

[0127] To make the plugging and unplugging process more stable, return to the reference Figure 2 and Figure 3 The plug-in device 400 also includes a fifth connecting rod 6 , a sixth connecting rod 7 and a seventh connecting rod 8 .

[0128] Among them, refer to Figure 2 and Figure 3The fifth connecting rod 6 is used for rotationally connecting with the frame 200. In the example where the plug-in device 400 includes the second connecting member 15, the fifth connecting rod 6 can be rotationally connected with the second connecting member 15 (for example, hinged). In this example, the second connecting member 15 can be a "U"-shaped frame, and the two side plates of the second connecting member 15 are rotationally connected with the first connecting rod 1 and the fifth connecting rod 6 respectively. The rotation axis of the fifth connecting rod 6 relative to the second connecting member 15 coincides with the rotation axis of the first connecting rod 1 relative to the second connecting member 15. The fifth connecting rod 6 is fixedly connected with the first connecting rod 1 through a connecting beam 61. The extending direction of the connecting beam 61 is parallel to the rotation axis of the fifth connecting rod 6 relative to the second connecting member 15. One end of the connecting beam 61 is fixedly connected with the fifth connecting rod 6, and the other end of the connecting beam 61 is fixedly connected with the first connecting rod 1.

[0129] For example, refer to Figure 2 The structure of the fifth connecting rod 6 can be the same as that of the first connecting rod 1. For example, the length direction of the fifth connecting rod 6 is parallel to the length direction of the first connecting rod 1. A protrusion 14 can be formed on the fifth connecting rod 6. An avoidance groove 141 for avoiding the abutment plate 5 can be provided on the fifth connecting rod 6.

[0130] In other examples, the structure of the fifth connecting rod 6 may also be different from that of the first connecting rod 1 .

[0131] Reference Figure 2 and Figure 3 The sixth connecting rod 7 is used for rotationally connecting with the frame body 200. In the example where the plug-in device 400 includes the third connecting member 24, the sixth connecting rod 7 is rotationally connected (for example, hinged) with the third connecting member 24. In this example, the third connecting member 24 can be a "U"-shaped frame, and the two side plates of the third connecting member 24 are rotationally connected with the second connecting rod 2 and the sixth connecting rod 7 respectively. The rotation axis of the sixth connecting rod 7 relative to the third connecting member 24 coincides with the rotation axis of the second connecting rod 2 relative to the third connecting member 24.

[0132] In addition, refer to Figure 2 , the sixth connecting rod 7 is slidably connected with the fifth connecting rod 6, and the sixth connecting rod 7 is used to drive the fifth connecting rod 6 to rotate relative to the second connecting member 15. In one example, the sixth connecting rod 7 and the fifth connecting rod 6 can be slidably connected through a sliding structure, and the sliding structure includes a sliding shaft 21 and a sliding groove 11. The sliding groove 11 is provided on the fifth connecting rod 6, and the extension direction of the sliding groove 11 on the first connecting rod 1 is parallel to the extension direction of the sliding groove 11 on the fifth connecting rod 6. The second connecting rod 2 and the sixth connecting rod 7 share the same sliding shaft 21, one end of the sliding shaft 21 is connected to the second connecting rod 2, and the other end of the sliding shaft 21 is connected to the sixth connecting rod 7, the sliding shaft 21 passes through the sliding groove 11 on the first connecting rod 1 and the sliding groove 11 on the fifth connecting rod 6, and the axis of the sliding shaft 21 is parallel to the rotation axis of the sixth connecting rod 7 relative to the frame 200.

[0133] In another example, the sliding shaft 21 on the second link 2 and the sliding shaft 21 on the sixth link 7 can be different sliding shafts 21. The sliding shaft 21 on the second link 2 extends into the sliding groove 11 on the first link 1, and the sliding shaft 21 on the sixth link 7 extends into the sliding groove 11 on the fifth link 6. The two sliding shafts 21 slide in the corresponding sliding grooves 11 respectively.

[0134] For example, refer to Figure 2 The structure of the sixth connecting rod 7 can be the same as that of the second connecting rod 2 , for example, the length direction of the sixth connecting rod 7 is parallel to the length direction of the second connecting rod 2 .

[0135] In other examples, the structure of the sixth connecting rod 7 may also be different from the structure of the second connecting rod 2 .

[0136] The seventh connecting rod 8 is used to connect the plug-in device 300, referring to Figure 2 and Figure 3 , the seventh link 8 is rotatably connected to the fifth link 6, and the rotation axis of the seventh link 8 relative to the fifth link 6 coincides with the rotation axis of the third link 3 relative to the second link 2. In an example, the structure of the seventh link 8 can be the same as that of the third link 3, for example, the seventh link 8 and the third link 3 are both arm-like bending structures, or the seventh link 8 and the third link 3 are both straight rods.

[0137] In other examples, the structure of the seventh link 8 may also be different from that of the third link 3. For example, the seventh link 8 is a straight rod, and the third link 3 is a bent structure similar to an arm.

[0138] It is sufficient that the seventh connecting rod 8 and the third connecting rod 3 can move synchronously, and the present application does not impose any specific limitation on the structures of the seventh connecting rod 8 and the third connecting rod 3 .

[0139] In order to connect the seventh connecting rod 8 to the plug-in device 300, refer to Figure 2 and Figure 3 , the seventh connecting rod 8 can also be rotatably connected to the first connecting member 12, and the first connecting member 12 is provided with a storage cavity 121 and a hook 13, and the hook 13 on the seventh connecting rod 8 can rotate between a hooking state and a storage state. In the example where both the seventh connecting rod 8 and the third connecting rod 3 are provided with the hook 13, a plurality of connecting shafts 302 can be provided on the plug-in device 300, and two hooks 13 are respectively hooked on the corresponding connecting shafts 302. The seventh connecting rod 8 and the third connecting rod 3 are respectively connected to the plug-in device 300 through the corresponding first connecting member 12. During the plug-in and unplugging process, the force points on the plug-in device 300 are increased, so that the movement process of the plug-in device 300 is more stable, and the possibility of the plug-in device 300 swinging during the movement is reduced.

[0140] The sixth connecting rod 7 and the second connecting rod 2 are rotated relative to the frame 200 (or the third connecting member 24), and the fifth connecting rod 6 and the first connecting rod 1 are respectively driven to rotate through the sixth connecting rod 7 and the second connecting rod 2, and the seventh connecting rod 8 and the third connecting rod 3 are respectively driven to rotate through the fifth connecting rod 6 and the first connecting rod 1, and the two first connecting members 12 are respectively driven to move through the seventh connecting rod 8 and the third connecting rod 3, and the plug-in component 300 is driven to move through the two first connecting members 12, so as to realize the insertion or removal of the plug-in component 300.

[0141] Reference Figure 2 and Figure 3 The plug-in device 400 may further include an eighth connecting rod 9, which is rotatably connected to the sixth connecting rod 7, and the rotation axis of the eighth connecting rod 9 relative to the sixth connecting rod 7 is parallel to the rotation axis of the sixth connecting rod 7 relative to the frame 200. A plurality of abutment plates 5 are provided, an abutment plate 5 is provided between the fourth connecting rod 4 and the second connecting rod 2, and an abutment plate 5 is also provided between the eighth connecting rod 9 and the sixth connecting rod 7. For example, the end of the eighth connecting rod 9 and the end of the sixth connecting rod 7 are both rotatably connected to the abutment plate 5, and two connecting plates 51 are also provided on the abutment plate 5, and the end of the eighth connecting rod 9 and the end of the sixth connecting rod 7 are located between the two connecting plates 51.

[0142] Reference Figure 2 , the abutment plate 5 rotatably connected to the eighth connecting rod 9 and the sixth connecting rod 7 is located on the same side of the eighth connecting rod 9 and the sixth connecting rod 7, and the eighth connecting rod 9 can drive the sixth connecting rod 7 to rotate through the abutment plate 5. For example, the structure of the eighth connecting rod 9 can be the same as that of the fourth connecting rod 4, for example, the length direction of the eighth connecting rod 9 is parallel to the length direction of the fourth connecting rod 4, and the rotation connection structure between the eighth connecting rod 9 and the sixth connecting rod 7 (rotatably connected through the abutment plate 5) is the same as the rotation connection structure between the fourth connecting rod 4 and the second connecting rod 2 (rotatably connected through the abutment plate 5).

[0143] For easier holding, refer to Figure 2 The plug-in device 400 further includes a handle 91, which is disposed at the end of the eighth connecting rod 9 away from the abutment plate 5, that is, the handle 91 is disposed at the end of the fourth connecting rod 4 away from the abutment plate 5, one end of the handle 91 is connected to the eighth connecting rod 9, and the other end of the handle 91 is connected to the fourth connecting rod 4. When the plug-in device 400 is required to plug or unplug the plug-in device 300, the eighth connecting rod 9 and the fourth connecting rod 4 can be rotated by the handle 91, and the sixth connecting rod 7 and the second connecting rod 2 can be driven to rotate by the eighth connecting rod 9 and the fourth connecting rod 4, respectively.

[0144] For example, the eighth connecting rod 9 and the fourth connecting rod 4 can move synchronously, the sixth connecting rod 7 and the second connecting rod 2 can move synchronously, and the fifth connecting rod 6 and the first connecting rod 1 can move synchronously.

[0145] In addition, in one example, referring to Figure 2 , the first link 1 and the fifth link 6 are located between the second link 2 and the sixth link 7, and the second link 2 and the sixth link 7 are located between the fourth link 4 and the eighth link 9. The first link 1 and the fifth link 6 move inside the second link 2 and the sixth link 7, and the fourth link 4 and the eighth link 9 move outside the second link 2 and the sixth link 7. The fifth link 6, the sixth link 7 and the eighth link 9 are staggered, which reduces the possibility of mutual interference during the movement of the three.

[0146] In other examples, the second link 2 and the sixth link 7 are located between the first link 1 and the fifth link 6 , and the fourth link 4 and the eighth link 9 are located between the second link 2 and the sixth link 7 .

[0147] During the rotation of the plug-in device 400 between the unfolded state and the folded state, the eighth connecting rod 9 and the fourth connecting rod 4 are turned over synchronously, the sixth connecting rod 7 and the second connecting rod 2 are turned over synchronously, and the fifth connecting rod 6 and the first connecting rod 1 are turned over synchronously. The turning process and turning state can refer to the turning of the first connecting rod 1, the second connecting rod 2 and the fourth connecting rod 4, and this application will not repeat them.

[0148] In other examples, the plugging device 400 may not include the fifth link 6 , the sixth link 7 , the seventh link 8 and the eighth link 9 .

[0149] In other examples, the plug-in device 400 may not include the fifth connecting rod 6, the sixth connecting rod 7, and the seventh connecting rod 8. In this example, the plug-in device 400 includes an eighth connecting rod 9, and the eighth connecting rod 9 and the third connecting rod 3 are arranged at intervals. The eighth connecting rod 9 and the third connecting rod 3 are connected to the first connecting rod 1 through a connecting frame. Among them, the eighth connecting rod 9 and the third connecting rod 3 can be fixedly connected to the rotating frame, and the rotating frame can be rotatably connected to the first connecting rod 1. Alternatively, the eighth connecting rod 9 and the third connecting rod 3 can be rotatably connected to the rotating frame, and the rotating frame can be fixedly connected to the first connecting rod 1.

[0150] In other examples, the plug-in device 400 may further include a ninth connecting rod, which is rotatably connected to the fourth connecting rod 4 or the second connecting rod 2. The ninth connecting rod can drive the second connecting rod 2 to rotate to form a third-level labor-saving lever, thereby further improving the labor-saving ratio of the plug-in device 400 and making the process of plugging and unplugging the plug-in component 300 by the plug-in device 400 more convenient, quick and labor-saving.

[0151] In addition, multiple connecting rods (for example, the tenth connecting rod, the eleventh connecting rod, etc.) can be added as the fourth-level labor-saving lever, the fifth-level labor-saving lever, etc. By levering the multiple connecting rods against each other, the plugging and unplugging process is made more labor-saving.

[0152] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A plugging and unplugging device for plugging and unplugging a plug-in device on a frame, characterized in that: The plugging and unplugging device comprises: a first connecting rod and a second connecting rod, wherein the first connecting rod and the second connecting rod are both used for rotationally connecting with the frame body, the first connecting rod is slidably connected with the second connecting rod, and the second connecting rod is used for driving the first connecting rod to rotate relative to the frame body; A third connecting rod, the third connecting rod is rotatably connected to the first connecting rod, and the third connecting rod is used to connect the plug-in device, The rotation connection position between the first connecting rod and the third connecting rod is located between the rotation connection position between the first connecting rod and the frame and the sliding connection position between the first connecting rod and the second connecting rod. A rotation axis of the third link relative to the first link, a rotation axis of the first link relative to the frame, and a rotation axis of the second link relative to the frame are parallel to each other.

2. The plug-in device according to claim 1, characterized in that: The first connecting rod and the second connecting rod are slidably connected via a sliding structure, and the sliding structure includes a sliding shaft and a sliding groove. The sliding groove is arranged on the first connecting rod, and the sliding shaft is arranged on the second connecting rod. The sliding shaft extends into the sliding groove, and the axis of the sliding shaft is parallel to the rotation axis of the second connecting rod relative to the frame.

3. The plug-in device according to claim 1 or 2, characterized in that: One end of the third connecting rod is rotatably connected to the first connecting rod, and the other end is rotatably connected to a first connecting member, wherein the first connecting member is used to connect the plug-in device. The rotation axis of the first connecting member relative to the third connecting rod is parallel to the rotation axis of the third connecting rod relative to the first connecting rod.

4. The plug-in device according to claim 3, characterized in that: A hook is rotatably connected to the first connecting member, a storage cavity is formed in the first connecting member, the hook is at least partially located in the storage cavity, and the hook can rotate between a hooking state and a storage state. In the hooking state, the hook portion is located outside the storage cavity and hooks the plug-in device. In the storage state, the hook is stored in the storage cavity.

5. The plug-in device according to claim 4, characterized in that: The end of the first connecting member facing away from the third connecting rod is provided with a groove, and the groove is used to accommodate the connecting shaft on the plug-in device.

6. The plugging and unplugging device according to any one of claims 1 to 5, characterized in that: The plugging and unplugging device also includes: a fourth connecting rod, the fourth connecting rod being rotatably connected to the second connecting rod, the rotation axis of the fourth connecting rod relative to the second connecting rod being parallel to the rotation axis of the second connecting rod relative to the frame; An abutment plate, wherein the abutment plate is connected to the fourth connecting rod, and the abutment plate is located on the same side of the fourth connecting rod and the second connecting rod.

7. The plug-in device according to claim 6, characterized in that: An end portion of the fourth connecting rod and an end portion of the second connecting rod are both rotatably connected to the abutment plate.

8. The plug-in device according to claim 6 or 7, characterized in that: The second connecting rod has a first side and a second side that are back-to-back, and the distribution direction of the first side and the second side is parallel to the rotation axis of the fourth connecting rod relative to the second connecting rod. The first link is located at the first side, and the fourth link is located at the second side.

9. The plug-in device according to claim 8, characterized in that: The plug-in device includes an unfolded state and a folded state. In the deployed state, the length direction of the first link intersects with the length direction of the second link, and the end of the fourth link away from the abutment plate and the end of the second link away from the abutment plate are respectively located on both sides of the abutment plate. In the folded state, the length direction of the first link is parallel to the length direction of the second link, and the end of the fourth link away from the abutment plate and the end of the second link away from the abutment plate are located on the same side of the abutment plate.

10. The plug-in device according to claim 9, characterized in that: The first connecting rod is provided with an avoidance groove, and in the folded state, part of the abutment plate is located in the avoidance groove.

11. The plug-in device according to any one of claims 1 to 10, characterized in that: The end of the first connecting rod is rotatably connected to a second connecting member, and the second connecting member is used to connect the frame. The end of the second connecting rod is rotatably connected to a third connecting member, and the third connecting member is used to connect the frame.

12. The plug-in device according to claim 11, characterized in that: The plugging and unplugging device also includes: a fifth connecting rod, the fifth connecting rod being rotatably connected to the second connecting member, the rotation axis of the fifth connecting rod relative to the second connecting member coincides with the rotation axis of the first connecting rod relative to the second connecting member, and the fifth connecting rod is fixedly connected to the first connecting rod via a connecting beam; a sixth connecting rod, the sixth connecting rod being rotatably connected to the third connecting member, the rotation axis of the sixth connecting rod relative to the third connecting member coincides with the rotation axis of the second connecting rod relative to the third connecting member, the sixth connecting rod being slidably connected to the fifth connecting rod, and the sixth connecting rod being used to drive the fifth connecting rod to rotate relative to the third connecting member; The seventh connecting rod is rotatably connected to the sixth connecting rod, the rotation axis of the seventh connecting rod relative to the sixth connecting rod coincides with the rotation axis of the third connecting rod relative to the second connecting rod, and the seventh connecting rod is used to connect the plug-in device.

13. A power distribution cabinet, characterized in that: It comprises a frame, a plug-in device and the plug-in device according to any one of claims 1 to 12, wherein the plug-in device comprises a circuit breaker, the circuit breaker is mounted on the frame, and the plug-in device is used for plugging and unplugging the circuit breaker on the frame.

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