Power box convenient to operate

Abstract

The invention discloses a power box convenient to operate, which comprises a box shell and a box plate, a locking mechanism is arranged on one side, facing the interior of the box shell, of the box plate, the locking mechanism can be matched and connected with the interior of the box shell, the locking mechanism comprises a fixed seat, a power assembly, a clutch piece and a lock pin, and the fixed seat is fixed on one side, facing the interior of the box shell, of the box plate; the power assembly is movably arranged on the fixing base and can be in separable power connection with the lock pin, and the clutch piece is arranged towards the power assembly, partially penetrates through the box plate and can push the power assembly to move on the fixing base so that the power assembly can be separated from the lock pin in a power mode. An operation opening for operating the lock pin and a clutch cover covering the operation opening are arranged on the face, away from the interior of the box shell, of the box plate, and the clutch cover covers the clutch piece extending out of the box plate. According to the power box, the function of opening and closing the box plate under the assistance of power is reserved, the problem that the box plate cannot be operated due to failure of a power assembly is solved, and the operation convenience and the system reliability of the power box are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of power boxes, and in particular to a power box which is easy to operate. Background Art

[0002] The power box is an indispensable key component in modern electrical systems. It is mainly used to distribute and control power resources to ensure the safe and stable operation of the power system. It not only provides the necessary power connection points for various electrical equipment, but also effectively protects the internal circuit from the influence of the external environment, such as dust, moisture, etc., thereby extending the service life of the equipment. The power box is usually equipped with electrical components such as circuit breakers, contactors, relays, etc. These components can realize functions such as overload protection, short circuit protection and switch control of the circuit, and play a vital role in ensuring the safety and reliability of power supply.

[0003] The structural design of the power box takes safety and maintainability into full consideration. Generally speaking, the power box consists of a solid box shell and a box plate hinged thereto. The box plate can be easily opened or closed to facilitate regular inspection, maintenance or rewiring of the electronic components inside the box shell. In order to prevent unauthorized personnel from misoperating or accidentally opening the box plate due to external force, the power box is usually equipped with a locking mechanism. These locking mechanisms can be simple mechanical locking mechanisms or more complex electronic locking mechanisms. The latter often supports multiple authentication methods such as password input and fingerprint recognition, which greatly improves safety. At the same time, considering the convenience of actual operation, some power boxes are also equipped with power components, such as electric devices or pneumatic devices, to assist the opening and closing of the box plate. However, it is worth noting that any mechanical equipment may have the risk of failure, and the power component is no exception. Therefore, the power box that opens or closes the box plate through the power component still has the technical defect that the box plate cannot be operated due to the failure of the power component, making the power box inconvenient to operate. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a conveniently operated power box in view of the above-mentioned defects in the prior art.

[0005] According to the present invention, there is provided a power box which is easy to operate, comprising:

[0006] A box shell, in which electronic components and wiring assemblies are fixedly installed;

[0007] A box panel, which is hinged to the box shell and can open or close the box shell;

[0008] The locking mechanism is arranged on the side of the box plate facing the inside of the box shell, and can be matched with the inside of the box shell to realize locking and unlocking between the box plate and the box shell;

[0009] The locking mechanism includes a fixed seat, a power assembly, a clutch and a lock pin. The fixed seat is fixed to the side of the box plate facing the inside of the box shell. The power assembly is movably arranged on the fixed seat and can be detachably connected to the lock pin power. The clutch is arranged toward the power assembly and partially penetrates the box plate, and can push the power assembly to move on the fixed seat to separate the power of the power assembly from the lock pin. An operating port for operating the lock pin and a clutch cover covering the operating port are provided on the side of the box plate away from the inside of the box shell, and the clutch cover covers the clutch cover extending out of the box plate.

[0010] Furthermore, the power assembly includes a sliding seat, a power unit and a driving wheel. The sliding seat is movably arranged on the fixed seat and can be fixed with the fixed seat by clamping. The power unit is fixed on the sliding seat and the driving shaft of the power unit passes through the sliding seat and is fixedly connected to the driving wheel. The driving wheel can be detachably connected to the locking pin power.

[0011] Furthermore, the locking pin is connected to a driven wheel, the driven wheel is meshed with the driving wheel, and the driven wheel is rotatably arranged on a side of the box plate facing the inside of the box shell through a supporting shaft.

[0012] Furthermore, the operating port is arranged corresponding to the driven wheel, so that after the driving wheel is separated from the driven wheel, the driven wheel can be operated through the operating port to realize the rotation of the locking rod.

[0013] Furthermore, a slide groove is provided on one side of the box plate away from the interior of the box shell, and the clutch is slidably engaged on the slide groove and can achieve: when the clutch pushes the driving wheel, the sliding seat and the fixed seat are disengaged and the driving wheel and the driven wheel are no longer engaged; when the clutch pushes the driving wheel again, the sliding seat and the fixed seat are re-engaged and the driving wheel and the driven wheel are re-engaged.

[0014] Furthermore, the sliding seat is provided with a buckle, and the fixed seat is provided with a fixed clamp, a movable clamp and a first spring located between the fixed clamp and the movable clamp. When the movable clamp is located inside the fixed clamp, it can contract and clamp the buckle, and when the movable clamp is located outside the fixed clamp, it can expand and release the buckle.

[0015] Furthermore, a locking rod is hinged at the bottom of the movable chuck, a second spring and a locking cap are provided at the bottom of the locking rod, and a locking groove and a guide protrusion higher than the locking groove are provided at the bottom of the fixed chuck. When the movable chuck is extended into or out of the fixed chuck, the locking cap slides into the locking groove along the guide protrusion and slides into the locking groove under the action of the second spring, or the locking cap slides away from the locking groove along the guide protrusion and leaves the locking groove under the action of the second spring.

[0016] Furthermore, a hinge shaft is connected to the top of the locking rod, the hinge shaft extends into a hinge hole of the movable chuck, a first limiting protrusion is provided in the hinge hole, and a second limiting protrusion corresponding to the first limiting protrusion is provided on the hinge shaft.

[0017] Furthermore, the locking groove includes a first locking groove, a second locking groove and an intermediate locking groove arranged between the first locking groove and the second locking groove, and the guide protrusion is arranged on the edges of the first locking groove, the intermediate locking groove and the second locking groove. After the locking cap slides into the first locking groove along the guide protrusion, the movable clamp extends into the fixed clamp. After the locking cap slides out of the second locking groove along the guide protrusion, the movable clamp extends out of the fixed clamp.

[0018] Furthermore, the guide protrusion has a first guide bevel, a second guide bevel, a third guide bevel and a fourth guide bevel connected in sequence end to end, the lock cap slides into the first lock groove along the first guide bevel and contacts the second guide bevel, the lock cap slides into the middle lock groove along the second guide bevel and contacts the third guide bevel, the lock cap slides into the second lock groove along the third guide bevel and contacts the fourth guide bevel, and the lock cap slides out of the second lock groove along the fourth guide bevel.

[0019] Compared with the prior art, the present invention has a modular design for the locking mechanism, so that when the power assembly in the locking mechanism fails, the power assembly and the lock pin can be separated by opening the clutch cover, and the lock pin can be directly operated through the operating port to open and close the box plate. In this way, the function of power-assisted opening and closing of the box plate is retained, and the problem of the box plate being unable to operate due to power assembly failure is overcome, which significantly improves the operational convenience and system reliability of the power box. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] A more complete understanding of the invention and its attendant advantages and features will be more readily appreciated by referring to the following detailed description taken in conjunction with the accompanying drawings.

[0021] Figure 1 It is a schematic structural diagram of an embodiment of the present invention when the box board is opened.

[0022] Figure 2 yes Figure 1 Schematic diagram of the locking mechanism.

[0023] Figure 3 yes Figure 2 main view.

[0024] Figure 4 yes Figure 2 Top view of the (without the fixing base and fixing clamp).

[0025] Figure 5 yes Figure 2 Exploded view of the fixed chuck and movable chuck.

[0026] Figure 6-Figure 7 yes Figure 5 Schematic diagram of the structure of the fixed chuck.

[0027] Figure 8 yes Figure 5Schematic diagram of the structure of the middle locking rod.

[0028] Fig. 9 It is a schematic structural diagram of the box plate of the embodiment of the present invention when it is closed.

[0029] Fig.10 It is a structural schematic diagram of opening the clutch cover after the power assembly fails in an embodiment of the present invention.

[0030] Fig.11 It is a schematic diagram of the structure of the locking mechanism after power separation in this embodiment.

[0031] Figure 12-13 yes Fig.11 Schematic diagram of the assembly structure of the fixed chuck and the movable chuck.

[0032] In the accompanying drawings: 1 is a box shell, 2 is a box plate, 3 is an electronic component, 4 is a wiring assembly, 5 is a lock pin seat, 6 is a fixed seat, 7 is a power assembly, 8 is a clutch, 9 is a lock pin, 10 is an operating port, 11 is a clutch cover, 12 is a switch, 13 is a sliding seat, 14 is a power device, 15 is a driving wheel, 16 is a fixed chuck, 17 is a movable chuck, 18 is a first spring, 19 is a buckle, 20 is a driven wheel, 21 is a slide groove, 22 is a lock rod, 23 is a hinge shaft, 24 is a lock cap, 25 is a lock groove, 26 is a guide convex, 27 is a first lock groove, 28 is a second lock groove, 29 is an intermediate lock groove, 30 is a first guide slope, 31 is a second guide slope, 32 is a third guide slope, and 33 is a fourth guide slope.

[0033] It should be noted that the drawings are used to illustrate the present invention, rather than to limit the present invention. Note that the drawings showing the structures may not be drawn to scale. In addition, in the drawings, the same or similar elements are marked with the same or similar reference numerals. DETAILED DESCRIPTION

[0034] In order to make the contents of the present invention clearer and easier to understand, the contents of the present invention are described in detail below in conjunction with specific embodiments and drawings.

[0035] The structure of the power box in this embodiment is as follows Figures 1 to 13 As shown, the power box includes a box shell 1 and a box plate 2. Various electronic components 3 and wiring components 4 are fixedly installed inside the box shell 1. At the same time, a lock pin seat 5 is also fixed inside the box shell 1, and the lock pin seat 5 is specifically arranged on the right side wall of the box shell 1. The box plate 2 is hinged to the box shell 1 and can open or close the box shell 1. The box plate 2 is specifically hinged to the left side wall of the box shell 1. A locking mechanism is provided on the side of the box plate 2 facing the inside of the box shell 1. The locking mechanism can cooperate with the lock pin seat 5 inside the box shell 1 to achieve the safe locking and unlocking function between the box plate 2 and the box shell 1.

[0036] The locking mechanism includes a fixed seat 6, a power assembly 7, a clutch 8 and a lock pin 9. The fixed seat 6 is fixed to the side of the box plate 2 facing the inside of the box shell 1. The power assembly 7 is movably arranged on the fixed seat 6 and establishes or disconnects a power connection with the lock pin 9, thereby controlling the lock pin 9 to enter or exit the lock pin groove of the lock pin seat 5 to achieve locking and unlocking. The clutch 8 is arranged toward the power assembly 7 and partially passes through the box plate 2, which can push the power assembly 7 to move on the fixed seat 6, resulting in the power connection between the power assembly 7 and the lock pin 9 being separated. In addition, an operating port 10 and a clutch cover 11 covering the operating port 10 are provided on the side of the box plate 2 facing away from the inside of the box shell 1. The clutch cover 11 protects the clutch 8 passing through the box plate 2. The clutch cover 11 can be hinged or clamped on the box plate 2. In order to prevent accidental opening, it is usually necessary to use a key to lock it. Near the clutch cover 11, the box plate 2 is also provided with a switch 12 such as password input, fingerprint recognition, button, etc., which is used to activate the power assembly 7. This embodiment has carried out the aforementioned modular design on the locking mechanism, so that when the power assembly 7 in the locking mechanism fails, the power assembly 7 and the lock pin 9 can be separated by opening the clutch cover 11, and the lock pin 9 can be directly operated through the operation port 10 to realize the opening and closing of the box plate 1. In this way, the function of power-assisted opening and closing of the box plate 2 is retained, and the problem that the box plate 2 cannot be operated due to the failure of the power assembly 7 is overcome, which significantly improves the operational convenience and system reliability of the power box.

[0037] The power assembly 7 specifically includes a sliding seat 13, a power device 14 and a driving wheel 15. The sliding seat 13 can slide on the fixed seat 6 and can be fixedly connected with the fixed seat 6. For example, the sliding on the fixed seat 6 is achieved by a friction slider or other mechanism. The power device 14 is fixed on the sliding seat 13, and its driving shaft passes through the sliding seat 13 and is connected to the driving wheel 15. The end of the fixed seat 6 is equipped with a fixed chuck 16, a movable chuck 17 and a first spring 18 located therebetween. The sliding seat 13 is provided with a buckle 19 corresponding to the movable chuck 17. When the movable chuck 17 is inside the fixed chuck 16, its two clamping arms will shrink and tighten the buckle 19; and when the movable chuck 17 moves out of the fixed chuck 16, the clamping arms will open and release the buckle 19. The locking pin 9 is connected to a driven wheel 20 and meshes with the driving wheel 15 through the driven wheel 20. The driven wheel 20 is rotatably mounted on the side of the box plate 2 facing the inside of the box shell 1 via a support shaft. Therefore, the power device 14 can drive the driven wheel 20 to rotate through the driving wheel 15, and finally drive the lock pin 9 to rotate, so that it is rotated into or out of the lock pin groove of the lock pin seat 5 to complete the locking or unlocking action.

[0038] A slide groove 21 is provided on one side of the box plate 2 away from the inside of the box shell 1, and the clutch 8 slides on the slide groove 21. The clutch 8 is a plate-like structure. When it pushes the driving wheel 15, the sliding seat 13 is acted upon by a force, which causes the movable clamp 17 originally partially located in the fixed clamp 16 to further extend into the fixed clamp 16, and pop out the fixed clamp 16 under the action of the first spring 18, releasing the buckle 19. At this time, the clamping relationship between the sliding seat 13 and the fixed seat 6 is released, and the driving wheel 15 is disengaged from the driven wheel 20, and the two are no longer engaged. On the contrary, when the clutch 8 acts on the driving wheel 15 again, the sliding seat 13 and the fixed seat 6 are re-engaged, and the driving wheel 15 and the driven wheel 20 are re-engaged. The operating port 10 corresponds to the position of the driven wheel 20, ensuring that after the driving wheel 15 is separated from the driven wheel 20, the driven wheel 20 can be manually operated through the operating port 10 to realize the rotation of the locking pin 9, so as to achieve the purpose of rotating the locking pin 9 into or out of the locking pin groove of the locking pin seat 5.

[0039] A locking rod 22 is hinged at the bottom of the movable chuck 17, a hinge shaft 23 is connected to the top of the locking rod 22, and a second spring and a locking cap 24 are installed at the bottom. The hinge shaft 23 is inserted into the hinge hole of the movable chuck 17, a first limiting protrusion is provided in the hole, and a second limiting protrusion is provided at a corresponding position on the hinge shaft 23, both of which are used to limit the rotation angle of the hinge shaft 23. A locking groove 25 and a guide protrusion 26 higher than the locking groove 25 are designed at the bottom of the fixed chuck 16. When the movable chuck 17 extends into or out of the fixed chuck 16, the locking cap 24 slides toward the locking groove 25 along the guide protrusion 26, and falls into the locking groove 25 under the action of the second spring, or slides out of the locking groove 25 along the guide protrusion 26. Specifically, the locking groove 25 is subdivided into a first locking groove 27, a second locking groove 28 and an intermediate locking groove 29 therebetween. The guide protrusion 26 is located at the edges of the first locking groove 27, the intermediate locking groove 29 and the second locking groove 28 and is composed of a continuous first guiding slope 30, a second guiding slope 31, a third guiding slope 32 and a fourth guiding slope 33. The lock cap 24 slides into the first locking groove 27 along the first guiding slope 30 and contacts the second guiding slope 31. The lock cap 24 slides into the intermediate locking groove 29 along the second guiding slope 31 and contacts the third guiding slope 32. The lock cap 24 slides into the second locking groove 28 along the third guiding slope 32 and contacts the fourth guiding slope 33. The lock cap 24 slides out of the second locking groove 28 along the fourth guiding slope 33. That is, the lock cap 24 first slides into the first lock groove 27 along the first guide slope 30, then enters the middle lock groove 29 along the second guide slope 31, then slides into the second lock groove 28 along the third guide slope 32, and finally slides out of the second lock groove 28 along the fourth guide slope 33. That is, the lock cap 24 first slides into the first lock groove 27 along the first guide slope 30, then enters the middle lock groove 29 along the second guide slope 31, then slides into the second lock groove 28 along the third guide slope 32, and finally slides out of the second lock groove 28 along the fourth guide slope 33. This means that when the lock cap 24 slides into the first lock groove 27 along the guide protrusion 26, the movable clamp 17 extends into the fixed clamp 16; and when the lock cap 24 slides out of the second lock groove 28 along the guide protrusion 26, the movable clamp 17 extends out of the fixed clamp 16.

[0040] The sliding of the lock cap 24 mainly depends on the guidance of the guide protrusion 26 higher than the lock groove 25 and the action of the second spring. Under normal conditions, the lock cap 24 is in close contact with the bottom of the fixed chuck 16, and the second spring is in a compressed state. When the lock cap 24 moves toward the lock groove 25 along the guide protrusion 26, the second spring begins to stretch and eventually presses the lock cap 24 firmly into the lock groove 25. It is worth noting that the design of the second lock groove 28 is gradual, that is, it gradually narrows, so that the lock cap 24 can smoothly slide out of the second lock groove 28 along the guide protrusion 26. Regardless of whether the lock cap 24 slides into the first lock groove 27, the middle lock groove 29 or the second lock groove 28, the elastic force of the second spring can ensure that the lock cap 24 is firmly fixed in the corresponding lock groove. Similarly, when the lock cap 24 needs to slide out of the lock groove, the elastic force of the second spring can help the lock cap 24 quickly disengage from the lock groove to achieve quick unlocking. During the entire working process, the synergistic effect of the first spring 18 and the second spring is crucial, and together they ensure the accurate movement of the movable chuck 17 and the lock cap 24. Specifically, the first spring 18 is mainly responsible for controlling the overall extension and clamping action of the movable chuck 17 relative to the fixed chuck 16; while the second spring focuses on the sliding of the lock cap 24 along the guide protrusion 26 and its clamping and release between different lock grooves. For example, when the clutch 8 drives the sliding seat 13 to move, the first spring 18 will be compressed, causing the movable chuck 17 to move toward the fixed chuck 16, while the lock cap 24 slides along the guide protrusion 26 and escapes from the lock groove 25. In this process, the elastic force of the second spring not only helps the lock cap 24 overcome the friction force and ensures that it quickly escapes from the lock groove, but also prepares for the subsequent re-entry, thereby ensuring that the clamping state between the movable chuck 17 and the fixed chuck 16 can be effectively released.

[0041] In this way, when the box plate 2 needs to be closed and locked, the box plate 2 is first pushed toward the box shell 1 until it is completely closed. At this time, the lock pin 9 is aligned with the lock pin groove of the lock pin seat 5. The power assembly 7 is activated by the switch 12, the power device 14 is started, and its drive shaft rotates and drives the driven wheel 20 to rotate through the driving wheel 15. Since the driven wheel 20 is connected to the lock pin 9, the lock pin 9 rotates accordingly and gradually screws into the lock pin groove of the lock pin seat 5, completing the locking process. During this process, the lock cap 24 is in the first lock groove 27, and the buckle 19 of the sliding seat 13 and the movable clamp 17 of the fixed seat 6 are in a clamping state, ensuring that the sliding seat 13 is tightly connected to the fixed seat 6, maintaining the power connection between the power assembly 7 and the lock pin 9, and ensuring the stable rotation of the lock pin 9. If the lock is unlocked when the power assembly 7 fails, the clutch cover 11 is first opened to expose the operating port 10 and the clutch 8. The clutch 8 is manually pushed to act on the driving wheel 15, forcing the sliding seat 13 to move. This action causes the movable chuck 17 to extend further into the fixed chuck 16, and the lock cap 24 enters the middle lock groove 29 along the second guide slope 31 and then slides into the second lock groove 28 along the third guide slope 32, and finally slides out of the second lock groove 28 along the fourth guide slope 33, that is, the lock cap 24 slides along the guide protrusion 26 and pops out of the lock groove 25 under the action of the first spring 18 and the second spring, and the clamping relationship between the buckle 19 of the sliding seat 13 and the movable chuck 17 of the fixed seat 6 is released. At this time, the clamping state between the sliding seat 13 and the fixed seat 6 is broken, and the driving wheel 15 and the driven wheel 20 lose meshing. Fig.10 Then, the driven wheel 20 can be manually rotated through the operating port 10 to rotate the lock pin 9 and exit the lock pin groove of the lock pin seat 5, thereby unlocking the box board 2. Once the lock pin 9 completely exits the lock pin seat 5, the box board 2 can be easily opened.

[0042] It is to be understood that, although the present invention has been disclosed as a preferred embodiment, the above embodiment is not intended to limit the present invention. For any person skilled in the art, without departing from the scope of the technical solution of the present invention, the technical content disclosed above can be used to make many possible changes and modifications to the technical solution of the present invention, or modified into equivalent embodiments of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of protection of the technical solution of the present invention.

Claims

1. An easy-to-operate power box, comprising: A box shell, in which electronic components and wiring assemblies are fixedly installed; A box panel, which is hinged to the box shell and can open or close the box shell; The locking mechanism is arranged on the side of the box plate facing the inside of the box shell, and can be matched with the inside of the box shell to realize locking and unlocking between the box plate and the box shell; Features: The locking mechanism includes a fixed seat, a power assembly, a clutch and a lock pin. The fixed seat is fixed to the side of the box plate facing the inside of the box shell. The power assembly is movably arranged on the fixed seat and can be detachably connected to the lock pin power. The clutch is arranged toward the power assembly and partially penetrates the box plate, and can push the power assembly to move on the fixed seat to separate the power of the power assembly from the lock pin. An operating port for operating the lock pin and a clutch cover covering the operating port are provided on the side of the box plate away from the inside of the box shell, and the clutch cover covers the clutch cover extending out of the box plate.

2. The conveniently operated power box according to claim 1, characterized in that: The power assembly includes a sliding seat, a power unit and a driving wheel. The sliding seat is movably arranged on the fixed seat and can be fixed with the fixed seat by clamping. The power unit is fixed on the sliding seat and the driving shaft of the power unit passes through the sliding seat and is fixedly connected to the driving wheel. The driving wheel can be detachably connected to the locking pin power.

3. The conveniently operated power box according to claim 2, characterized in that: The locking pin is connected with a driven wheel, the driven wheel is meshed with the driving wheel, and the driven wheel is rotatably arranged on a side of the box plate facing the inside of the box shell through a supporting shaft.

4. The conveniently operated power box according to claim 3 is characterized in that: The operating port is arranged corresponding to the driven wheel, so that after the driving wheel is separated from the driven wheel, the driven wheel can be operated through the operating port to realize the rotation of the locking rod.

5. The conveniently operated power box according to claim 2, characterized in that: A slide groove is provided on one side of the box plate away from the inside of the box shell, and the clutch member is slidably connected to the slide groove and can achieve: When the clutch member pushes the driving wheel, the sliding seat and the fixed seat are disengaged and the driving wheel and the driven wheel are no longer engaged; When the clutch member pushes the driving wheel again, the sliding seat and the fixing seat are re-engaged and the driving wheel and the driven wheel are re-engaged.

6. The conveniently operated power box according to claim 5, characterized in that: The sliding seat is provided with a buckle, and the fixed seat is provided with a fixed clamp, a movable clamp and a first spring located between the fixed clamp and the movable clamp. When the movable clamp is located inside the fixed clamp, it can contract to clamp the buckle, and when the movable clamp is located outside the fixed clamp, it can expand to release the buckle.

7. The conveniently operated power box according to claim 6, characterized in that: A locking rod is hinged at the bottom of the movable clamp, a second spring and a locking cap are provided at the bottom of the locking rod, a locking groove and a guide protrusion higher than the locking groove are provided at the bottom of the fixed clamp, and when the movable clamp is extended into or out of the fixed clamp, the locking cap slides into the locking groove along the guide protrusion and slides into the locking groove under the action of the second spring, or the locking cap slides away from the locking groove along the guide protrusion and leaves the locking groove under the action of the second spring.

8. The conveniently operated power box according to claim 7, characterized in that: The top of the locking rod is connected with a hinge shaft, which extends into a hinge hole of the movable clamp. A first limiting protrusion is arranged in the hinge hole, and a second limiting protrusion corresponding to the first limiting protrusion is arranged on the hinge shaft.

9. The conveniently operated power box according to claim 7, characterized in that: The locking groove comprises a first locking groove, a second locking groove and an intermediate locking groove arranged between the first locking groove and the second locking groove. The guide protrusion is arranged at the edges of the first locking groove, the intermediate locking groove and the second locking groove. After the locking cap slides into the first locking groove along the guide protrusion, the movable clamp extends into the fixed clamp. After the locking cap slides out of the second locking groove along the guide protrusion, the movable clamp extends out of the fixed clamp.

10. The conveniently operated power box according to claim 9, characterized in that: The guide protrusion has a first guide bevel, a second guide bevel, a third guide bevel and a fourth guide bevel connected in sequence end to end. The lock cap slides into the first lock groove along the first guide bevel and contacts the second guide bevel. The lock cap slides into the middle lock groove along the second guide bevel and contacts the third guide bevel. The lock cap slides into the second lock groove along the third guide bevel and contacts the fourth guide bevel. The lock cap slides out of the second lock groove along the fourth guide bevel.

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