Intelligent connection locking equipment for power line of building mechanical equipment

Abstract

The invention discloses intelligent connection locking equipment for a power line of building mechanical equipment, and relates to the technical field of power line connection, and the equipment comprises a power line unit which comprises a power line body; and the connecting unit comprises a connector assembly arranged on the power line body. In the construction process, quick connection of the conductive piece and the contact piece can be achieved only by inserting the plug assembly into the connector assembly, it is guaranteed that the fixing assembly and the plug assembly are firmly fixed in the connector assembly and cannot be separated even under the action of external force such as dragging and stretching, and the mechanical stability in the construction process is guaranteed; compared with the prior art, equipment failure risks caused by unstable connection are reduced, meanwhile, good sealing performance is achieved, sealing matching can be conducted when the plug assembly is inserted into the connector assembly, water and dust are effectively prevented from entering the connector assembly, therefore, internal electrical components are protected against influences of the external environment, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of power cord connection, and particularly to an intelligent connection and locking device for the power cord of construction machinery and equipment. Background Art

[0002] During the construction process, machinery such as grinders and drilling machines are generally used. Since these machines are generally not fixed in position during use, they need to be moved frequently, and their working radius and scope are large, so a long power cord is required, and thus the connection of the power cord needs to be carried out.

[0003] Currently, during the construction process, the operator may continuously tug on the power cord to reach different working areas due to work needs, which often causes the power cord to become loose from the socket device, resulting in an unexpected interruption of the operation. This kind of interruption will not only reduce the construction efficiency and bring inconvenience to the operator, but also cause safety accidents in some important working occasions due to this unexpected power interruption. Summary of the Invention

[0004] In view of the problems existing in the above-mentioned existing intelligent connection and locking device for the power cord of construction machinery and equipment, the present invention is proposed.

[0005] Therefore, the present invention provides an intelligent connection and locking device for the power cord of construction machinery and equipment, and its purpose is to solve the problem that the loosening of the power cord from the socket device leads to interruption, which will not only reduce the construction efficiency and bring inconvenience to the operator, but also cause safety accidents in some important working occasions due to this unexpected power interruption.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: a power cord unit, including a power cord body; A connection unit, including a joint assembly provided on the power cord body and a buckle assembly provided on the joint assembly; A locking unit, including a fixing component provided on the joint component, a plug component provided on the fixing component, and; A transmission line unit, including a transmission line body provided at the other end of the plug component.

[0007] As a preferred solution of the intelligent connection and locking device for the power cord of construction machinery and equipment of the present invention, wherein: the joint assembly includes a joint body provided on the power cord body, a limiting groove provided inside the joint body, a first return spring provided inside the limiting groove, a moving limiting member provided at the other end of the first return spring, and a limiting slot provided inside the moving limiting member, and the moving limiting member is slidably connected to the joint body.

[0008] As a preferred embodiment of the intelligent connection locking device for the power cord of construction machinery and equipment according to the present invention, wherein: a contact member is disposed inside the joint body, and the contact member is connected to the power cord body.

[0009] As a preferred embodiment of the intelligent connection locking device for the power cord of construction machinery and equipment according to the present invention, wherein: the buckle assembly includes a first buffer groove disposed inside the joint body, a second return spring disposed inside the first buffer groove, and a snap ring disposed at the other end of the second return spring, and the snap ring is slidably connected to the first buffer groove.

[0010] As a preferred embodiment of the intelligent connection locking device for the power cord of construction machinery and equipment according to the present invention, wherein: a first return spring is disposed at the bottom of the snap ring.

[0011] As a preferred embodiment of the intelligent connection locking device for the power cord of construction machinery and equipment according to the present invention, wherein: a limiting member is slidably disposed inside the second return spring, and both the limiting member and the second return spring are slidably connected to the first buffer groove.

[0012] As a preferred embodiment of the intelligent connection locking device for the power cord of construction machinery and equipment according to the present invention, wherein: the plug assembly includes a plug body disposed at the other end of the joint body, a second buffer groove disposed inside the plug body, a third return spring disposed inside the second buffer groove, and a sealing ring disposed at the other end of the third return spring, and the sealing ring is slidably connected to the plug body.

[0013] As a preferred embodiment of the intelligent connection locking device for the power cord of construction machinery and equipment according to the present invention, wherein: the fixing assembly includes a fixing base disposed inside the plug body, a connecting rod disposed on the fixing base, a T-shaped connecting head disposed at the other end of the connecting rod, and a conductive member disposed on the T-shaped connecting head, and the conductive member passes through the limiting slot and is slidably connected to the contact member.

[0014] As a preferred embodiment of the intelligent connection locking device for the power cord of construction machinery and equipment according to the present invention, wherein: a fourth return spring is disposed at one end of the fixing base, a tapered ring is disposed at the other end of the fourth return spring, and the tapered ring is slidably connected to the connecting rod.

[0015] As a preferred embodiment of the intelligent connection locking device for the power cord of construction machinery and equipment according to the present invention, wherein: a protective member is slidably disposed on the outer diameter of the plug body, and the protective member is slidably connected to the joint body.

[0016] Advantages of the present invention: During the construction process, simply insert the plug component into the joint component, and the rapid connection between the conductive component and the contact component can be achieved, greatly improving the construction efficiency. The connection is stable and reliable. The buckle component directly locks the fixing component under the extrusion of the plug component, ensuring the firm fixation of the fixing component and the plug component inside the joint component. Even under external forces such as dragging and stretching, they will not separate, guaranteeing the stability of the machinery during the construction process, reducing the risk of equipment failures caused by unstable connections. At the same time, it also has good sealing performance. When the plug component is inserted into the joint component, it can achieve a sealed fit, effectively preventing the entry of water and dust, thereby protecting the internal electrical components from the influence of the external environment and extending the service life of the equipment. When disassembly is required, simply squeeze the fixing component again to achieve rapid contact fixation, achieving the effect of rapid fixation and rapid release. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the intelligent connection and locking device for the power cord of construction machinery and equipment according to the present invention.

[0019] Figure 2 It is a schematic diagram of the disconnection structure of the intelligent connection and locking device for the power cord of construction machinery and equipment according to the present invention.

[0020] Figure 3 It is a schematic diagram of the internal structure of the joint component of the intelligent connection and locking device for the power cord of construction machinery and equipment according to the present invention.

[0021] Figure 4 It is for the intelligent connection and locking device for the power cord of construction machinery and equipment according to the present invention Figure 3 The enlarged schematic diagram at position A.

[0022] Figure 5 It is a schematic diagram of the sectional structure of the joint component of the intelligent connection and locking device for the power cord of construction machinery and equipment according to the present invention.

[0023] Figure 6 It is for the intelligent connection and locking device for the power cord of construction machinery and equipment according to the present invention Figure 5 The enlarged schematic diagram at position B.

[0024] Figure 7 It is a schematic diagram of the internal structure of the plug component of the intelligent connection and locking device for the power cord of construction machinery and equipment according to the present invention.

[0025] Figure 8 This is a schematic cross-sectional structure diagram of the plug assembly of the intelligent connection locking device for the power cord of construction machinery and equipment according to the present invention.

[0026] Figure 9 This is a schematic internal cross-sectional structure diagram of the plug assembly of the intelligent connection locking device for the power cord of construction machinery and equipment according to the present invention.

[0027] Figure 10 This is for the intelligent connection locking device for the power cord of construction machinery and equipment according to the present invention Figure 9 Schematic enlarged structure diagram at position C.

[0028] Explanation of reference numerals in the drawings: 100, power cord unit; 101, power cord body; 200, connection unit; 201, joint assembly; 2011, joint body; 2012, contact; 2013, limiting groove; 2014, first return spring; 2015, moving limiting member; 2016, limiting slot; 202, buckle assembly; 2021, first buffer groove; 2022, second return spring; 2023, snap ring; 2024, clamping block; 2025, limiting member; 300, conveyor line unit; 301, conveyor line body; 400, locking unit; 401, plug assembly; 4011, plug body; 4012, second buffer groove; 4013, third return spring; 4014, sealing ring; 4015, protective member; 402, fixing assembly; 4021, fixing base; 4022, connecting rod; 4023, T-shaped connector; 4024, conductive member; 4025, tapered ring; 4026, fourth return spring. Detailed description of the specific implementation

[0029] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following provides a detailed description of the specific implementation of the present invention in conjunction with the drawings in the specification.

[0030] Example 1, referring to Figure 1 - Figure 2 , which is the first embodiment of the present invention, provides an intelligent connection locking device for the power cord of construction machinery and equipment. This device includes: a power cord unit 100, a connection unit 200, a locking unit 400, and a conveyor line unit 300.

[0031] Among them, the power cord unit 100 includes a power cord body 101. When connecting the power cord of the equipment, the power source is connected through the power cord body 101; The conveyor line unit 300 includes a conveyor line body 301 provided at the other end of the plug assembly 401. When connecting the power cord of the equipment, the construction machinery and equipment in use is connected through the plug assembly 401; The connection unit 200 includes a connector assembly 201 disposed on the power cord body 101 and a buckle assembly 202 disposed on the connector assembly 201; the locking unit 400 includes a fixing assembly 402 disposed on the connector assembly 201, a plug assembly 401 disposed on the fixing assembly 402, and; when locking the power connection of the device, the fixing assembly 402 is inserted into the inside of the connector assembly 201, and the buckle assembly 202 inside the connector assembly 201 fixes and holds the fixing assembly 402 that enters the inside of the connector assembly 201. And when the fixing assembly 402 is inserted into the connector assembly 201, the limit slot 2016 inside the connector assembly 201 limits and guides the fixing assembly 402. At the same time, through the cooperation of the first return spring 2014 and the moving limit member 2015, the fixing assembly 402 is locked by the buckle assembly 202 after being inserted into the connector assembly 201. After the buckle assembly 202 also completes the fixing of the fixing assembly 402 after the fixing assembly 402 and the connector assembly 201 are connected, the plug assembly 401 can perform sealing and further fixing processing on the connected fixing assembly 402 and the connector assembly 201, ensuring that the quick connection between the conductive member 4024 and the contact member 2012 can be realized only by inserting the fixing assembly 402 into the inside of the connector assembly 201, greatly improving the construction efficiency, the connection is stable and reliable. The buckle assembly 202 directly holds the fixing assembly 402 under the extrusion of the fixing assembly 402, ensuring the firm fixing of the fixing assembly 402 and the plug assembly 401 inside the connector assembly 201, and they will not separate even under external forces such as dragging and stretching, ensuring the stability of the machine during the construction process.

[0032] During use, when locking the power connection of the device, the fixing component 402 is inserted into the interior of the joint component 201. The buckle component 202 inside the joint component 201 fixes and clamps the fixing component 402 that enters the interior of the joint component 201. And when the fixing component 402 is inserted into the joint component 201, the limit slot 2016 inside the joint component 201 positions and guides the fixing component 402. At the same time, through the cooperation of the first reset spring 2014 and the moving limit member 2015, the fixing component 402 is locked by the buckle component 202 after being inserted into the joint component 201. After the fixing component 402 and the joint component 201 are connected and the buckle component 202 also completes the fixation of the fixing component 402, the plug component 401 can perform sealing and further fixation on the connected fixing component 402 and joint component 201, ensuring that the quick connection between the conductive member 4024 and the contact member 2012 can be achieved only by inserting the fixing component 402 into the interior of the joint component 201, greatly improving the construction efficiency, with stable and reliable connection. The buckle component 202 directly clamps the fixing component 402 under the extrusion of the fixing component 402, ensuring the firm fixation of the fixing component 402 and the plug component 401 inside the joint component 201, and they will not separate even under external forces such as dragging and stretching, guaranteeing the stability of the machine during construction and reducing the risk of equipment failure caused by unstable connection.

[0033] Embodiment 2, refer to Figure 1 - Figure 6, which is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is as follows: The connector assembly 201 includes a connector body 2011 provided on the power cord body 101, a limiting groove 2013 provided inside the connector body 2011, a first return spring 2014 provided inside the limiting groove 2013, a moving limiting member 2015 provided at the other end of the first return spring 2014, and a limiting slot 2016 provided inside the moving limiting member 2015. The moving limiting member 2015 is slidably connected to the connector body 2011. A contact member 2012 is provided inside the connector body 2011, and the contact member 2012 is connected to the power cord body 101. When using the power cord, the operator inserts the plug assembly 401 into the connector assembly 201. The fixing assembly 402 inside the plug assembly 401 enters the connector body 2011 and presses the moving limiting member 2015. At the same time, the conductive member 4024 on the fixing assembly 402 is inserted into the limiting slot 2016 on the moving limiting member 2015. The limiting slot 2016 guides and fixes the conductive member 4024 to ensure that the conductive member 4024 can accurately connect with the contact member 2012, thereby completing power transmission. And while the fixing assembly 402 moves, the moving limiting member 2015 also starts to press the first return spring 2014, causing the first return spring 2014 to be compressed into the limiting groove 2013, so that the moving limiting member 2015 can return to its original position after the device connection and use are completed, ensuring the sealing performance inside the connector assembly 201.

[0034] Compared with Embodiment 1, further, the buckle assembly 202 includes a first buffer groove 2021 provided inside the joint body 2011, a second return spring 2022 provided inside the first buffer groove 2021, and a snap ring 2023 provided at the other end of the second return spring 2022. The snap ring 2023 is slidably connected to the first buffer groove 2021. A first return spring 2014 is provided at the bottom of the snap ring 2023. A limiting member 2025 is slidably provided inside the second return spring 2022, and both the limiting member 2025 and the second return spring 2022 are slidably connected to the first buffer groove 2021. After the fixing component 402 is inserted into the joint body 2011 and the contact with the contact member 2012 is completed through the movement of the limiting member 2015 and the limiting slot 2016, the outer diameter of the fixing component 402 also squeezes the clamping block 2024 while being inserted, causing the clamping blocks 2024 on the four sides to drive the snap ring 2023 to start squeezing the second return spring 2022 into the first buffer groove 2021. And because the T-shaped connector 4023 is conical, after the T-shaped connector 4023 is inserted into the joint body 2011, the squeezed clamping block 2024 pops out again under the reaction force of the second return spring 2022 and is stuck and fixed at the rear end of the T-shaped connector 4023, so that the T-shaped connector 4023 is fixed inside the joint body 2011. And when the clamping block 2024 fixes the T-shaped connector 4023, the limiting member 2025 inside the snap ring 2023 ensures that the snap ring 2023 returns to its original position and shrinks after being squeezed and enlarged by the T-shaped connector 4023, ensuring the locking situation after the connection of the device power cord is completed.

[0035] During use, when using the power cord, the operator inserts the plug assembly 401 into the inside of the joint assembly 201. The fixing assembly 402 inside the plug assembly 401 enters the inside of the joint body 2011 and presses the movable limiting member 2015. At the same time, the conductive member 4024 on the fixing assembly 402 is inserted into the limiting slot 2016 on the movable limiting member 2015. The limiting slot 2016 guides and fixes the conductive member 4024 to ensure that the conductive member 4024 can accurately connect with the contact member 2012, thereby completing power transmission. And while the fixing assembly 402 moves, the movable limiting member 2015 also starts to press the first return spring 2014, causing the first return spring 2014 to be pressed into the limiting groove 2013, so that the movable limiting member 2015 can return to its original position after the device connection is completed, ensuring the sealing performance inside the joint assembly 201. After the fixing assembly 402 is inserted into the inside of the joint body 2011 and the contact with the contact member 2012 is completed through the guiding of the movable limiting member 2015 and the limiting slot 2016, the outer diameter of the fixing assembly 402 presses the latch 2024 while inserting, causing the four-sided latches 2024 to drive the snap ring 2023 to start pressing the second return spring 2022 into the inside of the buffer groove 2021. And because the T-shaped connector 4023 is conical, after the T-shaped connector 4023 is inserted into the inside of the joint body 2011, the pressed latches 2024 pop out again under the reaction force of the second return spring 2022 and are stuck and fixed at the rear end of the T-shaped connector 4023, so that the T-shaped connector 4023 is fixed inside the joint body 2011. And when the latch 2024 fixes the T-shaped connector 4023, the limiting member 2025 inside the snap ring 2023 ensures that the snap ring 2023 returns to its original position and shrinks after being pressed and enlarged by the T-shaped connector 4023, ensuring the locking condition after the device power cord is connected.

[0036] The rest of the structure is the same as that of Embodiment 1.

[0037] Embodiment 3, refer to Figure 1 - Figure 10, which is the third embodiment of the present invention. The difference between this embodiment and the second embodiment is as follows: The plug assembly 401 includes a plug body 4011 provided at the other end of the joint body 2011, a second buffer groove 4012 provided inside the plug body 4011, a third return spring 4013 provided inside the second buffer groove 4012, and a sealing ring 4014 provided at the other end of the third return spring 4013. The sealing ring 4014 is slidably connected to the plug body 4011. During the process of the fixing assembly 402 being inserted into the joint body 2011 and being fixed by the latching assembly 202, when the fixing assembly 402 is pressed towards the inside of the joint assembly 201, the snap ring 2023 also reversely presses the sealing ring 4014 inside the plug body 4011, causing the sealing ring 4014 to press and compress the third return spring 4013 towards the inside of the second buffer groove 4012, so that the latching assembly 202 can better latch and fix the T-shaped connector 4023. Moreover, the sealing ring 4014 can also seal the inside of the plug body 4011 to ensure the internal sealing performance. At the same time, after the joint body 2011 and the plug body 4011 are fixed, the protective member 4015 is slid towards one side of the joint body 2011, so that the protective member 4015 sleeves on the outer diameter of the connection between the joint body 2011 and the plug body 4011, which can effectively prevent the entry of rainwater and dust from the outside, protect the internal electrical components, and enhance the service life of the joint assembly 201 and the plug assembly 401.

[0038] Compared with Embodiment 2, further, the fixing component 402 includes a fixing base 4021 disposed inside the plug body 4011, a connecting rod 4022 disposed on the fixing base 4021, a T-shaped connector 4023 disposed at the other end of the connecting rod 4022, and a conductive member 4024 disposed on the T-shaped connector 4023. The conductive member 4024 passes through the limiting slot 2016 and is slidably connected to the contact member 2012. A fourth return spring 4026 is disposed at one end of the fixing base 4021. A conical ring 4025 is disposed at the other end of the fourth return spring 4026. The conical ring 4025 is slidably connected to the connecting rod 4022. A protective member 4015 is slidably disposed on the outer diameter of the plug body 4011. The protective member 4015 is slidably connected to the joint body 2011. After the conductive member 4024 is inserted into the joint body 2011 and connected to the contact member 2012 and fixed by the block 2024, the block 2024 is fixed at the rear end of the T-shaped connector 4023 to complete the locking. When the device needs to be disconnected after use, only need to push the plug body 4011 into the joint body 2011 again, so that the block 2024 at the rear end of the T-shaped connector 4023 is continuously extruded by the conical ring 4025. At the same time, pull the plug body 4011 in the opposite direction so that the block 2024 drives the conical ring 4025 to move towards the rear end of the T-shaped connector 4023. And because the block 2024 is re-expanded by the conical ring 4025 and then slides over the outer diameter of the T-shaped connector 4023 to complete the quick disconnection. After the conical ring 4025 sends the block 2024 to the outer diameter of the T-shaped connector 4023, it is pulled back to the fixing base 4021 by the fourth return spring 4026, so that the conical ring 4025 returns to its original position and waits for the next connection. And after the conductive member 4024 is disconnected from the joint body 2011, the sealing ring 4014 and the moving limiting member 2015 both return to their original positions to ensure the sealing of the internal electrical components and prevent the intrusion of water and dust.

[0039] During use, when the fixing component 402 is inserted into the inside of the joint body 2011 and fixed by the buckle component 202, when the fixing component 402 is extruded into the inside of the joint component 201, the snap ring 2023 also reversely extrudes the sealing ring 4014 inside the plug body 4011, causing the sealing ring 4014 to extrude and reset the return spring three 4013 into the inside of the buffer groove two 4012, so that the buckle component 202 can better buckle and fix the T-shaped connector 4023, and the sealing ring 4014 can also seal the inside of the plug body 4011 to ensure the internal sealing performance. At the same time, after the joint body 2011 and the plug body 4011 are fixed, slide the protective part 4015 to one side of the joint body 2011, so that the protective part 4015 covers the outer diameter of the connection between the joint body 2011 and the plug body 4011, which can effectively prevent the entry of external rainwater and dust, ensure the internal electrical components, and enhance the service life of the joint component 201 and the plug component 401.

[0040] After the conductive part 4024 is inserted into the inside of the joint body 2011 and connected to the contact part 2012 and fixed by the clamping block 2024, the clamping block 2024 is fixed at the rear end of the T-shaped connector 4023 to complete the locking. When the fixed connection needs to be released after the device is connected and used, only need to push the plug body 4011 into the inside of the joint body 2011 again, so that the clamping block 2024 at the rear end of the T-shaped connector 4023 continues to be extruded by the tapered ring 4025, and at the same time pull the plug body 4011 in the opposite direction so that the clamping block 2024 drives the tapered ring 4025 to move towards the rear end of the T-shaped connector 4023. And because the clamping block 2024 is re-expanded after being re-extruded by the tapered ring 4025 and then slides over the outer diameter of the T-shaped connector 4023 to complete the rapid release of the fixation, and after the tapered ring 4025 sends the clamping block 2024 to the outer diameter of the T-shaped connector 4023, it is re-pulled to the fixed base 4021 by the return spring four 4026, so that the tapered ring 4025 returns to its original position again and waits for the next connection. And after the conductive part 4024 is released from the inside of the joint body 2011, the sealing ring 4014 and the moving limit part 2015 both return to their original positions, ensuring the firm fixation of the fixing component 402 and the plug component 401 inside the joint component 201. Even under external forces such as dragging and stretching, they will not separate, ensuring the stability of the machine during construction, reducing the risk of equipment failure caused by unstable connection, and at the same time having good sealing performance. The plug component 401 can perform sealing fit when inserted into the joint component 201, effectively preventing the entry of water and dust, thereby protecting the internal electrical components from the influence of the external environment and extending the service life of the equipment.

[0041] The remaining structures are the same as those of Embodiment 2.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. An intelligent connection locking device for the power cord of construction machinery and equipment, characterized in that: Comprising: A power cord unit (100), including a power cord body (101); A connection unit (200), including a connector assembly (201) provided on the power cord body (101), and a buckle assembly (202) provided on the connector assembly (201); A locking unit (400), including a fixing component (402) provided on the connector assembly (201), a plug component (401) provided on the fixing component (402), and; A conveying line unit (300), including a conveying line body (301) provided at the other end of the plug component (401).

2. The intelligent connection locking device for the power cord of construction machinery and equipment according to claim 1, characterized in that: The connector assembly (201) includes a connector body (2011) provided on the power cord body (101), a limiting groove (2013) provided inside the connector body (2011), a first return spring (2014) provided inside the limiting groove (2013), a moving limiting member (2015) provided at the other end of the first return spring (2014), and a limiting slot (2016) provided inside the moving limiting member (2015), and the moving limiting member (2015) is slidably connected to the connector body (2011).

3. The intelligent connection locking device for the power cord of construction machinery equipment according to claim 2, characterized in that: A contact member (2012) is provided inside the connector body (2011), and the contact member (2012) is connected to the power cord body (101).

4. The intelligent connection locking device for the power cord of construction machinery and equipment according to claim 3, characterized in that: The buckle assembly (202) includes a first buffer groove (2021) provided inside the connector body (2011), a second return spring (2022) provided inside the first buffer groove (2021), a snap ring (2023) provided at the other end of the second return spring (2022), and the snap ring (2023) is slidably connected to the first buffer groove (2021).

5. The intelligent connection locking device for the power cord of construction machinery and equipment according to claim 4, characterized in that: A first return spring (2014) is provided at the bottom of the snap ring (2023).

6. The intelligent connection locking device for the power cord of construction machinery and equipment according to claim 5, characterized in that: A limiting member (2025) is slidably provided inside the second return spring (2022), and both the limiting member (2025) and the second return spring (2022) are slidably connected to the first buffer groove (2021).

7. The intelligent connection locking device for the power cord of construction machinery and equipment according to claim 6, characterized in that: The plug component (401) includes a plug body (4011) provided at the other end of the connector body (2011), a second buffer groove (4012) provided inside the plug body (4011), a third return spring (4013) provided inside the second buffer groove (4012), a sealing ring (4014) provided at the other end of the third return spring (4013), and the sealing ring (4014) is slidably connected to the plug body (4011).

8. The intelligent connection locking device for the power cord of construction machinery and equipment according to claim 7, characterized in that: The fixing component (402) includes a fixing base (4021) disposed inside the plug body (4011), a connecting rod (4022) disposed on the fixing base (4021), a T-shaped connector (4023) disposed at the other end of the connecting rod (4022), and a conductive member (4024) disposed on the T-shaped connector (4023), and the conductive member (4024) passes through the limiting slot (2016) and is slidably connected to the contact member (2012).

9. The intelligent connection locking device for the power cord of construction machinery equipment according to claim 8, characterized in that: One end of the fixing base (4021) is provided with a fourth return spring (4026), the other end of the fourth return spring (4026) is provided with a conical ring (4025), and the conical ring (4025) is slidably connected to the connecting rod (4022).

10. The intelligent connection locking device for the power cord of construction machinery and equipment according to claim 9, characterized in that: A protective member (4015) is slidably disposed on the outer diameter of the plug body (4011), and the protective member (4015) is slidably connected to the joint body (2011).

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