A power switch box interlocking protection device

Abstract

The present invention belongs to the technical field of power switch box, and discloses a power switch box interlocking protection device, which includes a pull rod, a pendulum wheel and a stopper, one end of the pull rod is rotatably connected to the box cover of the power switch box, and the other end is rotatably connected to the first position of the pendulum wheel, the pendulum wheel is rotatably arranged on the box body of the power switch box, and is located on the same side of the box body as the power socket, the first position and the rotation axis of the pendulum wheel are mutually spaced, the stopper is rotatably arranged on the box body, the second position of the stopper is rotatably connected to the third position of the pendulum wheel, the second position and the rotation axis of the stopper are mutually spaced, and the third position and the rotation axis of the pendulum wheel are mutually spaced, and when the box cover is flipped downward from an open state to a closed state, the stopper can be driven by the pendulum wheel to rotate to abut against the power socket. The power switch box interlocking protection device proposed by the present invention can prevent plugging and unplugging when power is on, avoid being burned by discharge arc, and thus ensure the personal safety of construction personnel.

Description

Technical Field

[0001] The invention belongs to the technical field of power switch boxes, and in particular relates to an interlocking protection device for a power switch box. Background Art

[0002] The power switch box, also called the power distribution box or the power distribution cabinet, is a device for concentrating, switching and distributing electric energy. The general power switch box is used to facilitate power outages and plays a role in metering and judging power outages. It is also convenient for maintenance when a circuit fault is found.

[0003] At present, the plugging and unplugging of the power socket on the power switch box needs to be done when the power is off. During construction, it is easy for the construction workers to forget to turn off the power due to negligence. If the power is on, it is very easy to cause arc burn accidents, which cannot guarantee the personal safety of the construction workers.

[0004] Therefore, there is an urgent need for a power switch box interlocking protection device to solve the above technical problems. Summary of the invention

[0005] The purpose of the present invention is to provide an interlocking protection device for a power switch box, which can prevent plugging and unplugging when the power is on, avoid burns caused by discharge arc, and thus ensure the personal safety of construction workers.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A power switch box interlocking protection device, comprising:

[0008] A pull rod, one end of which is rotatably connected to a box cover of a power switch box;

[0009] A balance wheel is rotatably disposed in the box body of the power switch box and is located on the same side of the box body as the power socket, and the other end of the pull rod is rotatably connected to the first position of the balance wheel, and the first position is spaced from the rotation axis of the balance wheel;

[0010] A stopper is rotatably arranged on the box body, the second position of the stopper is rotatably connected to the third position of the balance wheel, the second position of the stopper and the rotation axis of the stopper are spaced apart from each other, the third position of the balance wheel and the rotation axis of the balance wheel are spaced apart from each other, and when the box cover is flipped downward from opening to closing the box body, the stopper can be driven by the balance wheel to rotate until it is pressed against the power socket.

[0011] Preferably, a connecting member is further included, and the second position of the stop member is rotatably connected to the third position of the balance wheel through the connecting member.

[0012] Preferably, the connecting member is connected to a plurality of mutually spaced stop members, and each of the stop members can press against one of the power sockets.

[0013] Preferably, it further comprises a transmission shaft, and the balance wheel is rotatably connected to the box body via the transmission shaft.

[0014] Preferably, there are multiple balance wheels, which are spaced apart from each other and selectively connected to the pull rod, the transmission shaft is rotatably arranged on the box, the balance wheel is fixedly sleeved on the transmission shaft, and each balance wheel is correspondingly provided with at least one stopper.

[0015] Preferably, it further comprises a plurality of mounting seats, wherein the plurality of mounting seats are fixedly connected to the box body and are spaced apart from each other, and the transmission shaft is rotatably disposed through the plurality of mounting seats.

[0016] Preferably, the transmission shaft is rotatably connected to the mounting seat via a bearing.

[0017] Preferably, an eccentric hole is provided on the balance wheel, and the first position and the third position are respectively located at two ends of the eccentric hole.

[0018] Preferably, the pull rod comprises a universal connecting rod.

[0019] Preferably, the surface of the stopper comprises an arc surface, the shape of the arc surface is consistent with the side shape of the power socket, and the arc surface can be pressed against the side of the power socket.

[0020] Beneficial effects of the present invention:

[0021] The present invention provides a power switch box interlocking protection device. Since the first position of the balance wheel is spaced from the rotation axis of the balance wheel, the pull rod can drive the balance wheel to rotate when it swings up and down; the third position of the balance wheel is spaced from the rotation axis of the balance wheel, so when the balance wheel rotates, the third position on the balance wheel will rotate around its rotation axis; the second position of the stopper is rotationally connected to the third position of the balance wheel, and the second position of the stopper is spaced from the rotation axis of the stopper, so the rotation of the third position will drive the second position of the stopper to rotate around the rotation axis of the stopper; in the process of the box cover flipping down from the open position, the pull rod is driven to swing up and down, the balance wheel rotates, and the stopper rotates, and when the box cover is turned to the closed box body, the stopper is pressed against the power socket. The power switch box is powered on when the box cover is closed, and the power socket is locked by the stopper at this time, so that it cannot be plugged in or out. The power switch box interlocking protection device proposed by the present invention can prevent plugging and unplugging when the power is on, avoid being burned by the discharge arc, and thus ensure the personal safety of construction personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front view of the power switch box interlocking protection device provided by an embodiment of the present invention in a tightened state;

[0023] Figure 2 yes Figure 1 The enlarged view of point A in the middle;

[0024] Figure 3 It is a side view of the power switch box interlocking protection device provided by an embodiment of the present invention in a tightened state;

[0025] Figure 4 It is a front view of the interlocking protection device of the power switch box provided by the embodiment of the present invention in a released state;

[0026] Figure 5 is a front view of a stopper provided by an embodiment of the present invention;

[0027] Figure 6 It is a front view of the balance wheel provided in an embodiment of the present invention.

[0028] In the figure:

[0029] 100, box cover; 200, box body; 201, power socket;

[0030] 1. Pull rod; 2. Balance wheel; 3. Stopper; 4. Connector; 5. Transmission shaft; 6. Mounting seat;

[0031] 21. Center hole; 22. Eccentric hole; 31. Arc surface; 32. Mounting hole; 33. Connecting hole. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar parts or parts having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0033] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "installed" should be understood in a broad sense, for example, it can be an installed connection or a detachable 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, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the description of the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0036] like Figures 1 to 6 As shown, this embodiment provides an interlocking protection device for a power switch box, which includes a pull rod 1, a balance wheel 2 and a stopper 3, one end of the pull rod 1 is rotatably connected to the box cover 100 of the power switch box; the balance wheel 2 is rotatably set in the box body 200 of the power switch box, and is located on the same side of the box body 200 as the power socket 201, the other end of the pull rod 1 is rotatably connected to the first position of the balance wheel 2, and the first position is spaced apart from the rotation axis of the balance wheel 2; the stopper 3 is rotatably set in the box body 200, the second position of the stopper 3 is rotatably connected to the third position of the balance wheel 2, the second position of the stopper 3 is spaced apart from the rotation axis of the stopper 3, and the third position of the balance wheel 2 is spaced apart from the rotation axis of the balance wheel 2, and when the box cover 100 is flipped downward from an open box to a closed box body 200, the stopper 3 can be driven by the balance wheel 2 to rotate until it is tightly pressed against the power socket 201.

[0037] The power switch box interlocking protection device provided in this embodiment has the advantages that the first position of the balance wheel 2 is spaced from the rotation axis of the balance wheel 2, so the pull rod 1 can drive the balance wheel 2 to rotate when it swings up and down; the third position of the balance wheel 2 is spaced from the rotation axis of the balance wheel 2, so the third position on the balance wheel 2 will rotate around its rotation axis when the balance wheel 2 rotates; the second position of the stopper 3 is rotationally connected to the third position of the balance wheel 2, and the second position of the stopper 3 is spaced from the rotation axis of the stopper 3, so the rotation of the third position will drive the second position of the stopper 3 to rotate around the rotation axis of the stopper 3; in the process of the box cover 100 flipping down from the open position, the pull rod 1 is driven to swing up and down, the balance wheel 2 is rotated, and the stopper 3 is rotated forwardly, and when the box cover 100 is rotated to the closed box body 200, the stopper 3 is pressed against the power socket 201. The power switch box is powered normally when the box cover 100 is closed, and is powered off when it is opened. Therefore, when the box cover 100 of this embodiment is closed, the stopper 3 locks the power socket 201, making it impossible to plug or unplug. When plugging or unplugging is required, the box cover 100 is opened. At this time, the stopper 3 rotates in the opposite direction to release the power socket 201, so that plugging or unplugging can be performed when the power is off. Therefore, the interlocking protection device of the power switch box can prevent plugging or unplugging when the power is on, avoid burns from discharge arc, and thus ensure the personal safety of construction workers.

[0038] like Figure 1 As shown, the box cover 100 is closed, and the end of the stopper 3 away from the balance wheel 2 is close to the power socket 201 to prevent misoperation; Figure 4 As shown, the box cover 100 is flipped upward to drive the stopper 3 to rotate. At this time, the end of the stopper 3 away from the balance wheel 2 is away from the power socket 201, and plugging and unplugging can be performed.

[0039] The power switch box interlocking protection device provided in this embodiment further includes a connecting member 4, and the second position of the stopper 3 is rotatably connected to the third position of the balance wheel 2 through the connecting member 4. One end of the connecting member 4 is rotatably connected to the second position of the stopper 3, and the other end is rotatably connected to the third position of the balance wheel 2. The arrangement of the connecting member 4 makes the rotation of the stopper 3 smoother, and prevents the stopper 3 from being blocked.

[0040] Optionally, the connector 4 is connected to a plurality of mutually spaced stoppers 3, and each stopper 3 can be pressed against a power socket 201. In this embodiment, the same connector 4 is correspondingly provided with two stoppers 3, and the two stoppers 3 are respectively connected to the two ends of the connector 4, and the third position of the balance wheel 2 is located between the two stoppers 3, so that the same connector 4 drives the two stoppers 3 to rotate.

[0041] like Figure 1 and Figure 5As shown, the surface of the stopper 3 includes an arc surface 31, the shape of the arc surface 31 is consistent with the side shape of the power socket 201, and the arc surface 31 can be pressed against the side of the power socket 201. The provision of the arc surface 31 increases the contact area between the stopper 3 and the power socket 201, ensuring that the power socket 201 is pressed against.

[0042] In this embodiment, a mounting hole 32 and a connecting hole 33 are provided on the stop member 3. The stop member 3 is rotatably connected to the box body 200 through the mounting hole 32 by an axle pin, and the second position of the stop member 3 is rotatably connected to the connecting member 4 through the connecting hole 33 by an axle pin.

[0043] The power switch box interlocking protection device provided in this embodiment also includes a transmission shaft 5, and the balance wheel 2 is rotatably connected to the box body 200 through the transmission shaft 5. In this embodiment, a center hole 21 is opened at the center position of the balance wheel 2, and the transmission shaft 5 is passed through the center hole 21 to realize the rotation connection between the balance wheel 2 and the box body 200.

[0044] Optionally, in other embodiments, the transmission shaft 5 can be fixedly connected to the box 200 , and the balance wheel 2 can be rotatably sleeved on the transmission shaft 5 .

[0045] Specifically, in this embodiment, a plurality of balance wheels 2 are provided, and the plurality of balance wheels 2 are arranged at intervals and connected to the pull rod 1 at one of them, the transmission shaft 5 is rotatably provided on the box body 200, the balance wheel 2 is fixedly sleeved on the transmission shaft 5, and each balance wheel 2 is correspondingly provided with two stoppers 3. The fixed connection between the balance wheel 2 and the transmission shaft 5 enables the balance wheel 2 connected to the pull rod 1 to drive the transmission shaft 5 to rotate when rotating, thereby driving the remaining balance wheels 2 to rotate synchronously, and realizing the driving of the plurality of stoppers 3. Preferably, the pull rod 1 is connected to the balance wheel 2 closest to the rotating shaft of the box cover 100.

[0046] The power switch box interlocking protection device provided in this embodiment further includes a plurality of mounting seats 6, which are fixedly connected to the box body 200 and spaced apart from each other, and the transmission shaft 5 is rotatably passed through the plurality of mounting seats 6. The plurality of mounting seats 6 ensures the stability of the transmission shaft 5. In this embodiment, the mounting seats 6 can be connected to the box body 200 by welding, or can be integrally formed with the box body 200.

[0047] Optionally, the transmission shaft 5 is rotatably connected to the mounting seat 6 via a bearing, so that the transmission shaft 5 can rotate smoothly, which is beneficial to reducing the force used to flip the box cover 100.

[0048] Optionally, the first position and the third position may be located on opposite sides of the rotation axis of the balance wheel 2, or may be located on the same side of the rotation axis of the balance wheel 2. In this embodiment, Figure 6As shown, the balance wheel 2 is provided with an eccentric hole 22, and the first position and the third position are respectively located at the two ends of the eccentric hole 22, that is, the connecting member 4 and the pull rod 1 are respectively rotatably connected to the two ends of the eccentric hole 22 through the same shaft pin. The connecting member 4 and the pull rod 1 are respectively arranged at the two ends of the eccentric hole 22, so that the connecting member 4 and the pull rod 1 can avoid mutual interference when rotating, and ensure smooth rotation of the two.

[0049] Specifically, the pull rod 1 includes a universal connecting rod, which can ensure that the balance wheel 2 rotates smoothly.

[0050] like Figure 3 As shown, the connecting member 4 is a U-shaped rod, including a bottom rod and side rods connected to both ends of the bottom rod, the bottom rod is located between the box body 200 and the transmission shaft 5, the side rods extend in a direction perpendicular to the side of the box body 200, and one end of the side rod away from the bottom rod is transferred to the stop member 3, which supports the stop member 3 to a suitable position to press the power socket 201 tightly.

[0051] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A power switch box interlocking protection device, characterized in that: include: A pull rod (1), one end of which is rotatably connected to a box cover (100) of a power switch box; A balance wheel (2) is rotatably arranged in a box body (200) of the power switch box and is located on the same side of the box body (200) as the power socket (201); the other end of the pull rod (1) is rotatably connected to a first position of the balance wheel (2), and the first position is spaced apart from the rotation axis of the balance wheel (2); a stopper (3) rotatably disposed on the box body (200); a second position of the stopper (3) is rotatably connected to a third position of the balance wheel (2); the second position of the stopper (3) and a rotation axis of the stopper (3) are spaced apart from each other; the third position of the balance wheel (2) and a rotation axis of the balance wheel (2) are spaced apart from each other; when the box cover (100) is flipped downward from being open to closing the box body (200), the stopper (3) can be driven by the balance wheel (2) to rotate until it is in close contact with the power socket (201); a connecting member (4), wherein the second position of the stop member (3) is rotatably connected to the third position of the balance wheel (2) via the connecting member (4); A transmission shaft (5), wherein the balance wheel (2) is rotationally connected to the box (200) via the transmission shaft (5).

2. The power switch box interlocking protection device according to claim 1 is characterized in that: The connecting member (4) is connected to a plurality of mutually spaced stop members (3), and each of the stop members (3) is capable of pressing against one of the power sockets (201).

3. The power switch box interlocking protection device according to claim 1 is characterized in that: A plurality of the balance wheels (2) are provided, the plurality of balance wheels (2) are arranged at intervals from each other and are selectively connected to the pull rod (1), the transmission shaft (5) is rotatably provided on the box body (200), the balance wheel (2) is fixedly sleeved on the transmission shaft (5), and each of the balance wheels (2) is correspondingly provided with at least one of the stoppers (3).

4. The power switch box interlocking protection device according to claim 1 is characterized in that: It also comprises a plurality of mounting seats (6), wherein the plurality of mounting seats (6) are fixedly connected to the box body (200) and are arranged at intervals from each other, and the transmission shaft (5) is rotatably disposed through the plurality of mounting seats (6).

5. The power switch box interlocking protection device according to claim 4 is characterized in that: The transmission shaft (5) is rotatably connected to the mounting seat (6) via a bearing.

6. The power switch box interlocking protection device according to any one of claims 1 to 5, characterized in that: An eccentric hole (22) is provided on the balance wheel (2), and the first position and the third position are respectively located at two ends of the eccentric hole (22).

7. The power switch box interlocking protection device according to any one of claims 1 to 5, characterized in that: The pull rod (1) comprises a universal connecting rod.

8. The power switch box interlocking protection device according to any one of claims 1 to 5, characterized in that: The surface of the stopper (3) comprises an arc surface (31), the shape of the arc surface (31) is consistent with the shape of the side surface of the power socket (201), and the arc surface (31) can be pressed against the side surface of the power socket (201).

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