A convenient charging device for mining new energy excavators and mining trucks

Abstract

This invention relates to the field of convenient charging technology, specifically a convenient charging device for mining new energy excavators and mining trucks. It includes a charger with a cable extending from one side. The free end of the cable is connected to a charging plug. The charging plug specifically includes a housing and a charging head. The cable is coaxially and fixedly connected to the housing. The free end of the cable is conductively connected to a female connector on a first side inside the housing. The charging head is coaxially disposed within the housing. The male connector at the first end of the charging head is inserted into the female connector. The second end of the charging head has a charging male port, the free end of which passes through the second side of the housing and is inserted into the charging port of the device to be charged. This invention has advantages such as locking the charging port and automatically separating the charging male port from the charging port when the charging device moves.

Description

Technical Field

[0001] This invention relates to the field of convenient charging technology, specifically a convenient charging device for mining new energy excavators and mining trucks. Background Technology

[0002] With the popularization of new energy technologies in the mining machinery field, large equipment such as mining excavators and mining trucks are gradually undergoing electrification. Their green, environmentally friendly, and low-energy-consumption advantages have significantly reduced carbon emissions and operating costs in mining. However, the mining environment is unique, with rugged terrain, high dust levels, and frequent equipment movement. Furthermore, charging equipment needs to adapt to harsh outdoor conditions. This places stringent requirements on the charging systems of new energy mining equipment: on the one hand, the charging process must be convenient to meet the equipment's need for rapid energy replenishment; on the other hand, it must have high reliability to avoid downtime or safety hazards caused by unstable charging connections.

[0003] Currently, the charging methods for new energy equipment in mining mainly follow traditional industrial charging solutions. However, existing charging plugs mostly adopt a simple plug-and-play structure, lacking an effective locking and fixing mechanism. During mining operations, equipment vibration, slight displacement, or accidental contact by personnel can easily cause the charging plug to loosen and fall off, which not only interrupts the charging process and affects work efficiency, but may also generate electric arcs due to poor contact, causing safety risks such as electric shock and fire. Furthermore, if the device moves suddenly during charging (such as due to driver misoperation or brake failure), the charging cable may be pulled, potentially causing damage to the plug, cable breakage, or even dragging the charging device and causing it to tip over, posing a serious safety hazard. Summary of the Invention

[0004] In view of this, the present invention provides a convenient charging device for mining new energy excavators and mining trucks, which aims to solve the problems in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a convenient charging device for mining new energy excavators and mining trucks, comprising, A charger has a cable extending from one side, with a charging plug connected to the free end of the cable. The charging plug specifically includes a housing and a charging head. The cable is coaxially and fixedly connected to the housing. The free end of the cable is conductively connected to a female connector on the first side inside the housing. The charging head is coaxially disposed inside the housing. The male connector at the first end of the charging head is inserted into the female connector. The second end of the charging head has a charging male port. The free end of the charging male port passes through the second side of the housing and is inserted into the charging port of the device to be charged. After the male charging port and the charging port are plugged in, the driving component drives the locking component to lock the charging port through the transmission component. After charging is completed, the driving component drives the locking component to release the locking of the charging port through the transmission component. When the male charging port and the charging port are plugged in, if the charging device is displaced, the unlocking component can drive the locking component to disengage from the charging port through the transmission component, and the male charging port and the charging port will automatically separate.

[0006] A further improvement of the present invention is that the clamping assembly and the transmission assembly are both provided in multiple sets and correspond one-to-one. The multiple sets of clamping assemblies are evenly arranged along the circumferential direction of the second end of the charging head. The clamping assembly includes a clamping plate, which is composed of a first clamping rod and a second clamping rod arranged at an angle. The connection between the first clamping rod and the second clamping rod is hinged to the outer circumferential wall of the second end of the charging head. The free end of the first clamping rod extends to the top of the male charging port and is fixedly provided with a hook. The second clamping rod is placed inside the housing. A first elastic element is provided between the second clamping rod and the charging head. The free end of the second clamping rod is connected to the transmission assembly for transmission.

[0007] A further improvement of the present invention is that the transmission assembly includes a lifting plate and a pressure rod. The lifting plate is disposed inside the housing. A support plate fixedly disposed on the charging head slides in cooperation with the lifting plate. A first elongated slot is opened at the first end of the lifting plate. A first guide post is fixedly disposed at the free end of the second clamping rod. The first guide post is slidably connected to the first elongated slot. The housing has a through hole. The pressure rod slides through the through hole. The first end of the pressure rod abuts against the second end of the lifting plate. The driving member is connected to the second end of the pressure rod. The driving member drives the lifting plate to move closer to or away from the charging head through the pressure rod.

[0008] A further improvement of the present invention is that the driving element includes: A sliding ring is coaxially and slidably sleeved on the outside of the housing. The sliding ring is connected to the housing through multiple sets of elastic components. Multiple mounting plates are fixedly installed on the inner wall of the sliding ring and correspond one-to-one with the pressure rod. Each mounting plate is provided with a first wedge-shaped surface, and the second end of the pressure rod is provided with a second wedge-shaped surface that matches the first wedge-shaped surface. When the elastic component is stretched, the mounting plate drives the pressure rod to move toward the charging head; when the elastic component is reset, the pressure rod moves away from the charging head.

[0009] A further improvement of the present invention is that the elastic component includes: The first guide shaft has its axis parallel to the axis of the housing, and its first end is fixedly connected to the end of the sliding ring. The first guide cylinder is coaxially arranged with the first guide shaft. The first end of the first guide cylinder is fixedly connected to the housing. The second end of the first guide shaft extends into the housing from the second end of the first guide cylinder. A first spring is provided between the second end of the first guide shaft and the first end of the first guide cylinder.

[0010] A further improvement of the present invention is that the unlocking component includes: Multiple fixed plates are provided, each corresponding to a lifting plate, and are fixedly installed on the inner wall of the housing between the lifting plate and the second end of the housing. The second end of the lifting plate is provided with a third wedge-shaped surface, and the fixed plates are provided with a fourth wedge-shaped surface that matches the third wedge-shaped surface. The first protrusion is coaxially fixed to the first end of the charging head and abuts against the inner wall of the first side of the housing; The second protrusion is coaxially fixed to the inner wall of the housing. The second end of the charging head passes through the second protrusion, and a second spring is sleeved on the charging head located between the first protrusion and the second protrusion.

[0011] A further improvement of the present invention is that the second spring is a high-stiffness spring.

[0012] A further improvement of the present invention is that the first end of the first elastic member is fixedly connected to the charging head, and the second end is fixedly connected to the second locking rod, wherein the first elastic member is a spring sheet or a torsion spring.

[0013] A further improvement of the present invention is that two pressure plates are fixedly provided at both ends of the pressure rod, the two pressure plates are slidably connected to the through hole respectively, and a third spring is provided between the pressure plate and the horizontal plate at the bottom of the through hole.

[0014] A further improvement of the present invention is that a baffle is coaxially fixed at the second end of the charging head, the baffle is slidably connected to the inner wall of the second end of the housing, and the free end of the lever passes through the through groove on the baffle.

[0015] The technological advancements achieved by this invention due to the adoption of the above technical solutions are as follows: This invention provides a convenient charging device for mining new energy excavators and mining trucks. Through the coordinated operation of the drive component, transmission component, and clamping component, the charging male port can automatically lock after being plugged into the charging port of the device to be charged. Compared with the prior art, the locking structure between the hook and the edge of the charging port can effectively resist the risk of loosening caused by equipment vibration and accidental contact by personnel, and avoid the generation of electric arc due to poor contact, thus eliminating safety hazards such as electric shock and fire from the root. At the same time, the clamping component is evenly distributed along the circumference of the charging head, and the locking force is balanced, ensuring stable current transmission during the charging process, further protecting the safety of equipment and personnel.

[0016] In this invention, when the device to be charged suddenly moves during the charging process, the unlocking component can quickly drive the locking component to disengage from the charging port through the transmission component, and automatically separate the charging male port from the charging port. This avoids damage to the plug and breakage of the cable caused by pulling the charging cable, and also prevents serious accidents such as equipment tipping over due to dragging the charging device. This adds double safety protection to mining operations and adapts to operation scenarios where equipment moves frequently. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the charging device described in this invention; Figure 2 This is a schematic diagram of the unlocking component of the charging device described in this invention; Figure 3 This is a schematic diagram of the clamping assembly of the charging device described in this invention; Figure 4 This is a schematic diagram of the transmission component of the charging device described in this invention.

[0019] Explanation of reference numerals in the attached figures: 10-Charger, 20-Cable, 30-Charging plug, 31-Housing, 311-Female connector, 312-Through hole, 313-Horizontal plate, 32-Charging head, 321-Male connector, 322-Charging male port, 323-Support plate, 324-First boss, 325-Baffle, 40-Driver, 41-Sliding ring, 42-Mounting plate, 421-First wedge surface, 43-Elastic component, 431-First guide shaft, 432-First guide cylinder, 433 50-First spring, 51-Transmission assembly, 51-Lifting plate, 511-First long slot, 512-Third wedge surface, 52-Pressure rod, 521-Second wedge surface, 522-Pressure plate, 523-Third spring, 60-Clamping assembly, 611-First clamping rod, 612-Second clamping rod, 613-Hook, 62-First elastic element, 63-First guide post, 71-Fixing plate, 711-Fourth wedge surface, 72-Second boss, 73-Second spring. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, in the following description, specific details such as particular system structures and technologies are set forth for illustrative purposes rather than for limiting purposes, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art should understand that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary details.

[0021] This invention provides a convenient charging device for mining new energy excavators and mining trucks, according to the appendix to the specification. Figures 1 to 4It is known that a convenient charging device for mining new energy excavators and mining trucks mainly includes the following parts or components: charger 10, cable 20, and charging plug 30.

[0022] In this invention, a cable 20 extends from one side of the charger 10, and a charging plug 30 is connected to the free end of the cable 20. The charging plug 30 specifically includes a housing 31 and a charging head 32. The cable 20 is coaxially and fixedly connected to the housing 31, and the free end of the cable 20 is electrically connected to a female connector 311 on the first side inside the housing 31. The charging head 32 is coaxially disposed inside the housing 31, and the male connector 321 at the first end of the charging head 32 is inserted into the female connector 311. The second end of the charging head 32 is provided with a charging male port 322, and the free end of the charging male port 322... The male charging port 322 penetrates the second side of the housing 31 and is inserted into the charging port of the device to be charged. After the male charging port 322 is inserted into the charging port, the driving component 40 drives the locking component 60 to lock the charging port via the transmission component 50. After charging is completed, the driving component 40 drives the locking component 60 to release the locking of the charging port via the transmission component 50. If the charging device is displaced while the male charging port 322 is inserted into the charging port, the unlocking component can drive the locking component 60 to disengage from the charging port via the transmission component 50, and the male charging port 322 will automatically separate from the charging port.

[0023] During charging, insert the male charging port 322 at the second end of the charging head 32 into the charging port of the device to be charged. Simultaneously, the drive unit 40 is activated, and power is transmitted via the transmission component 50 to the locking component 60, which locks the charging port, ensuring a stable connection during charging. After charging is complete, the drive unit 40 reverses its movement, driving the locking component 60 through the transmission component 50 to release the lock on the charging port, allowing the male charging port 322 to be removed and power disconnected. If the charging device suddenly shifts during charging, the unlocking component is triggered, driving the locking component 60 to disengage from the charging port via the transmission component 50. Simultaneously, the male charging port 322 automatically separates from the charging port, preventing cable damage or device injury.

[0024] As one embodiment, according to the appendix to the specification Figure 3 It can be seen that the clamping assembly 60 and the transmission assembly 50 are both set in multiple groups and correspond one to one. The multiple sets of clamping assemblies 60 are evenly arranged along the circumferential direction of the second end of the charging head 32. The clamping assembly 60 includes a clamping plate, which is composed of a first clamping rod 611 and a second clamping rod 612 set at an angle. The connection between the first clamping rod 611 and the second clamping rod 612 is hinged to the outer circumferential wall of the second end of the charging head 32. The free end of the first clamping rod 611 extends to the top of the charging male port 322 and is fixedly provided with a hook 613. The second clamping rod 612 is placed inside the housing 31. A first elastic element 62 is provided between the second clamping rod 612 and the charging head 32. The free end of the second clamping rod 612 is connected to the transmission assembly 50 for transmission.

[0025] The locking assembly 60 is normally locked in its initial state. When charging is required, the drive component 40 drives the second locking rod 612 to swing and move through the transmission component 50, while compressing the first elastic member 62. Relying on the hinge angle structure between the first locking rod 611 and the second locking rod 612, the second locking rod 612 swings and drives the first locking rod 611 to rotate, so that the free end of the first locking rod 611 opens outward and moves away from the charging port. At this time, the male charging port 322 can be smoothly inserted into the charging port of the device to be charged.

[0026] When the male charging port 322 is plugged into the charging port, the driving component 40 moves in the opposite direction, and the transmission component 50 moves in the opposite direction to reset. The compressed first elastic element 62 rebounds elastically, driving the second locking rod 612 to rotate and swing. Then, through the hinge linkage, the first locking rod 611 is driven to rotate synchronously, so that the free end of the first locking rod 611 is retracted and reset. The hook 613 on it is reliably engaged with the edge of the charging port, realizing the automatic locking and fixing of the charging interface.

[0027] When it is necessary to unlock and unplug the plug, the drive component 40 drives the second latch 612 to swing again through the transmission component 50, compressing the first elastic component 62 again. Through the hinge transmission, the first latch 611 is rotated and opened, so that the latch 613 at the end of the first latch 611 is disengaged from the edge of the charging port, releasing the locking limit. Then the male charging port 322 can be pulled out of the charging port, completing the unlocking and separation process.

[0028] Specifically, the number of transmission components 50 and clamping components 60 is preferably 2-4 sets and evenly distributed to balance the locking force and structural compactness.

[0029] Specifically, the included angle between the first lever 611 and the second lever 612 is preferably between 130° and 160°.

[0030] As one embodiment, according to the appendix to the specification Figure 4 It is known that the transmission assembly 50 includes a lifting plate 51 and a pressure rod 52. The lifting plate 51 is located inside the housing 31. The support plate 323 fixedly installed on the charging head 32 is slidably engaged with the lifting plate 51. The first end of the lifting plate 51 has a first elongated slot 511. The free end of the second clamping rod 612 is fixedly provided with a first guide post 63. The first guide post 63 is slidably connected to the first elongated slot 511. The housing 31 has a through hole 312. The pressure rod 52 is slidably inserted into the through hole 312. The first end of the pressure rod 52 abuts against the second end of the lifting plate 51. The driving member 40 is connected to the second end of the pressure rod 52. The driving member 40 drives the lifting plate 51 to move closer to or away from the charging head 32 through the pressure rod 52.

[0031] When charging is required, the drive unit 40 drives the pressure rod 52 to slide along the through hole 312 of the housing 31. The first end of the pressure rod 52 abuts against the second end of the lifting plate 51 and pushes the lifting plate 51 toward the charging head 32. During the movement of the lifting plate 51, the first elongated slot 511 and the first guide post 63 cooperate to drive the second locking rod 612 to swing, compressing the first elastic element 62. The first locking rod 611 opens synchronously. When the charging male port 322 is inserted into place, the drive unit 40 reverses its action, the pressure rod 52 moves away from the charging head 32, and the lifting plate 51 returns to its original position under the rebound force of the first elastic element 62. The first elongated slot 511 drives the second locking rod 612 to rotate, and the first locking rod 611 closes and locks. When unlocking, the drive unit 40 drives the pressure rod 52 again to push the lifting plate 51 to move. The first elongated slot 511 and the first guide post 63 cooperate to drive the second locking rod 612 to swing, compressing the first elastic element 62. The first locking rod 611 opens and releases the lock.

[0032] As one embodiment, according to the appendix to the specification Figure 3 It is known that the driving component 40 includes a sliding ring 41, which is coaxially slidably sleeved on the outside of the housing 31. The sliding ring 41 is connected to the housing 31 through multiple sets of elastic components 43. Multiple mounting plates 42 are fixedly disposed on the inner wall of the sliding ring 41 and correspond one-to-one with the pressure rod 52. The mounting plate 42 is provided with a first wedge-shaped surface 421, and the second end of the pressure rod 52 is provided with a second wedge-shaped surface 521 adapted to the first wedge-shaped surface 421. When the elastic component 43 is stretched, the mounting plate 42 drives the pressure rod 52 to move toward the charging head 32. When the elastic component 43 is reset, the pressure rod 52 moves away from the charging head 32.

[0033] When charging is required, manually pull the sliding ring 41. The elastic component 43 is stretched, and the sliding ring 41 drives the mounting plate 42 on the inner wall to move synchronously. The first wedge-shaped surface 421 of the mounting plate 42 fits against the second wedge-shaped surface 521 at the second end of the pressure rod 52. The wedge-shaped surface guides the pressure rod 52 towards the charging head 32, thereby driving the transmission component 50 to swing the second locking rod 612 and open the first locking rod 611. After the charging male port 322 is inserted, release the sliding ring 41. The elastic component 43 resets, causing the mounting plate 42 to move in the opposite direction. The wedge-shaped surface pressure is released, and the pressure rod 52 moves away from the charging head 32 under the rebound of the first elastic component 62. The transmission component 50 resets, and the first locking rod 611 closes and locks. To unlock, manually pull the sliding ring 41 again, repeating the above driving process. The pressure rod 52 pushes the transmission component 50 to swing the second locking rod 612, and the first locking rod 611 opens, completing the unlocking process.

[0034] Specifically, the number of elastic components 43 is 2-4 sets and they are evenly distributed along the circumference of the sliding ring 41 to ensure that the sliding ring 41 is subjected to balanced force, avoid tilting and jamming, and make the multiple pressure rods 52 subjected to consistent force, driving multiple sets of clamping rods to open or close synchronously; the tilt angle between the first wedge surface 421 and the second wedge surface 521 is preferably 30°-45° to balance the driving effort saving and stroke requirements.

[0035] Specifically, anti-slip textures (such as annular grooves or diamond patterns) or 3-4 evenly distributed gripping protrusions are provided on the outer wall of the sliding ring 41 to increase hand friction, adapt to scenarios where personnel's hands are contaminated with dust or oil in mining operations, and improve ease of operation.

[0036] As one embodiment, according to the appendix to the specification Figure 3 It is known that the elastic component 43 includes a first guide shaft 431, whose axial direction is parallel to the axial direction of the housing 31. The first end of the first guide shaft 431 is fixedly connected to the end of the sliding ring 41. The first guide cylinder 432 is coaxially arranged with the first guide shaft 431. The first end of the first guide cylinder 432 is fixedly connected to the housing 31. The second end of the first guide shaft 431 extends into the housing from the second end of the first guide cylinder 432. A first spring 433 is provided between the second end of the first guide shaft 431 and the first end of the first guide cylinder 432.

[0037] When charging is required, manually pull the sliding ring 41. The first guide shaft 431 slides outward along the first guide cylinder 432, stretching the first spring 433. The sliding ring 41 drives the mounting plate 42 to move the pressure rod 52, opening the latch 613. After the charging male port 322 is inserted, release the sliding ring 41. The first spring 433 rebounds, pushing the first guide shaft 431 back to its original position, which in turn drives the sliding ring 41 and the mounting plate 42 back to their initial positions. The pressure rod 52 resets, and the latch locks. To unlock, pull the sliding ring 41 again. The first spring 433 is stretched again, causing the sliding ring 41 to move the mounting plate 42, opening the latch 613. After releasing, the first spring 433 resets, and the sliding ring 41 returns to its initial state.

[0038] Specifically, a sliding groove is provided on the housing 31, and a sliding rod is provided on the inner wall of the sliding ring 41. The sliding rod slides in the sliding groove. When the sliding rod is at the first end of the sliding groove, the lifting plate 51 is away from the charging head 32. When the sliding rod is at the second end of the sliding groove, the lifting plate 51 is close to the charging head 32. When the sliding rod is at the first end or the second end of the sliding groove, the first spring 433 has a preload, so the first spring 433 will not bounce back and forth.

[0039] As one embodiment, according to the appendix to the specification Figure 2 Appendix Figure 4It is known that the unlocking component includes multiple fixing plates 71, which correspond one-to-one with the lifting plate 51 and are fixedly disposed on the inner wall of the housing 31 between the lifting plate 51 and the second end of the housing 31. The second end of the lifting plate 51 is provided with a third wedge-shaped surface 512, and the fixing plate 71 is provided with a fourth wedge-shaped surface 711 that is adapted to the third wedge-shaped surface 512. The first protrusion 324 is coaxially fixedly disposed on the first end of the charging head 32 and abuts against the inner wall of the first side of the housing 31. The second protrusion 72 is coaxially fixedly disposed on the inner wall of the housing 31, and the second end of the charging head 32 passes through the second protrusion 72. A second spring 73 is sleeved on the charging head 32 located between the first protrusion 324 and the second protrusion 72.

[0040] When the charging device is displaced, the charging port drives the charging male port 322 and the charging head 32 to move synchronously. The first protrusion 324 on the charging head 32 compresses the second spring 73 and drives the lifting plate 51 to move toward the second side of the housing 31. The third wedge-shaped surface 512 of the lifting plate 51 fits with the fourth wedge-shaped surface 711 of the fixed plate 71. Under the guidance of the wedge-shaped surface, the lifting plate 51 generates radial displacement and moves closer to the charging head 32. The lifting plate 51 drives the second latch 612 to move toward the charging head 32. The first elastic element 62 is compressed, the second latch 612 rotates, and the latch 613 on the first latch 611 opens and disengages from the charging port. After the latch 613 on the first latch 611 opens and disengages from the charging port, the second spring 73 rebounds and pushes the charging head 32 to reset. The charging head 32 drives the charging male port 322 to completely separate from the charging port, completing the emergency unlocking.

[0041] Specifically, the second spring 73 is a high-stiffness spring. Initially, it is in a naturally extended / stretched state. During normal charging, its high stiffness can withstand small displacements caused by vibrations of the device being charged, preventing accidental triggering of the unlocking mechanism and ensuring the locking component 60 remains locked and the connection is stable during charging. When the device experiences sudden displacement, the charging head 32 is compressed by the second spring 73. The high stiffness allows the spring to store sufficient elastic potential energy, generating a strong thrust upon rebound, quickly pushing the charging head 32 back to its original position. This, combined with the unlocking component, causes the locking component 60 to open, ensuring complete separation of the charging male port 322 from the charging port, preventing residual contact from generating an electric arc and reducing safety hazards.

[0042] The second spring 73 is made of alloy spring steel with an elastic modulus ≥20N / mm, an effective number of coils of 5-8, and a wire diameter of 3-5mm.

[0043] As one embodiment, according to the appendix to the specification Figure 3 It can be seen that the first end of the first elastic element 62 is fixedly connected to the charging head 32, and the second end is fixedly connected to the second locking rod 612. The first elastic element 62 is a spring sheet or a torsion spring.

[0044] When charging is required, the transmission component 50 drives the second locking lever 612 to swing, compressing or twisting the first elastic element 62 to store elastic potential energy, and the first locking lever 611 opens simultaneously. After the charging male port 322 is inserted into place, the first elastic element 62 elastically rebounds, driving the second locking lever 612 to rotate, and the first locking lever 611 closes and locks. When unlocking, the transmission component 50 again drives the second locking lever 612 to swing, compressing or twisting the first elastic element 62, and the first locking lever 611 opens, releasing the lock. The first elastic element 62 provides power for the opening and locking of the locking lever throughout the entire process, ensuring smooth and precise operation.

[0045] As one embodiment, according to the appendix to the specification Figure 4 It can be seen that two pressure plates 522 are fixed at both ends of the pressure rod 52. The two pressure plates 522 are slidably connected to the through hole 312 respectively, and a third spring 523 is provided between the pressure plate 522 and the horizontal plate 313 at the bottom of the through hole 312.

[0046] When charging is required, the drive component 40 moves the pressure rod 52 toward the charging head 32, and the pressure plate 522 compresses the third spring 523, storing elastic potential energy. After the charging male connector 322 is inserted into place, the drive component 40 resets, the third spring 523 rebounds, pushing the pressure plate 522 to move the pressure rod 52 quickly away from the charging head 32, the auxiliary transmission component 50 resets, and the first elastic component 62, together with the first elastic component 62, moves the locking lever to close and lock. When unlocking, the drive component 40 moves the pressure rod 52 again, the pressure plate 522 compresses the third spring 523 again, and after unlocking, the spring rebounds, causing the pressure rod 52 to reset. At the same time, the pressure plate 522 can limit the sliding stroke of the pressure rod 52, avoiding excessive displacement that could cause component collision damage and ensuring the safe operation of the structure.

[0047] As one embodiment, according to the appendix to the specification Figure 4 It can be seen that the second end of the charging head 32 is coaxially fixed with a baffle 325, the baffle 325 is slidably connected to the inner wall of the second end of the housing 31, and the free end of the lever passes through the through groove on the baffle 325.

[0048] The baffle 325 can limit the radial displacement of the charging head 32, ensuring that the charging male port 322 and the charging port are accurately connected, avoiding abnormal action of the clamping rod due to the offset of the charging head 32. It can also prevent dust in the mining environment from entering the housing 31, preventing the clamping component 60, transmission component 50 and other components from jamming, and ensuring smooth opening and locking of the clamping rod.

[0049] Specifically, a lip seal is installed at the mating point between the baffle 325 and the inner wall of the housing 31 to enhance the dustproof sealing effect; the number of through slots corresponds one-to-one with the first locking rod 611 to prevent dust from entering the housing 31 in large quantities through the through slots, and dustproof brushes are installed in the through slots to further block dust.

[0050] This invention provides a convenient charging device for mining trucks used in new energy mining excavators. The specific usage method is as follows: The locking assembly 60 is normally locked in its initial state. When charging is required, the drive component 40 drives the second locking rod 612 to swing and move through the transmission component 50, while compressing the first elastic member 62. Relying on the hinge angle structure between the first locking rod 611 and the second locking rod 612, the second locking rod 612 swings and drives the first locking rod 611 to rotate, so that the free end of the first locking rod 611 opens outward and moves away from the charging port. At this time, the male charging port 322 can be smoothly inserted into the charging port of the device to be charged.

[0051] When the male charging port 322 is plugged into the charging port, the driving component 40 moves in the opposite direction, and the transmission component 50 moves in the opposite direction to reset. The compressed first elastic element 62 rebounds elastically, driving the second locking rod 612 to rotate and swing. Then, through the hinge linkage, the first locking rod 611 is driven to rotate synchronously, so that the free end of the first locking rod 611 is retracted and reset. The hook 613 on it is reliably engaged with the edge of the charging port, realizing the automatic locking and fixing of the charging interface.

[0052] When it is necessary to unlock and unplug the plug, the drive component 40 drives the second latch 612 to swing again through the transmission component 50, compressing the first elastic component 62 again. Through the hinge transmission, the first latch 611 is rotated and opened, so that the latch 613 at the end of the first latch 611 is released from the edge constraint of the charging port, and the locking limit is released. Then the male charging port 322 can be pulled out of the charging port, completing the unlocking and separation process.

[0053] When the charging device is displaced, the charging port drives the charging male port 322 and the charging head 32 to move synchronously. The first protrusion 324 on the charging head 32 compresses the second spring 73 and drives the lifting plate 51 to move toward the second side of the housing 31. The third wedge-shaped surface 512 of the lifting plate 51 fits with the fourth wedge-shaped surface 711 of the fixed plate 71. Under the guidance of the wedge-shaped surface, the lifting plate 51 generates radial displacement and moves closer to the charging head 32. The lifting plate 51 drives the second latch 612 to move toward the charging head 32. The first elastic element 62 is compressed, the second latch 612 rotates, and the latch 613 on the first latch 611 opens and disengages from the charging port. After the latch 613 on the first latch 611 opens and disengages from the charging port, the second spring 73 rebounds and pushes the charging head 32 to reset. The charging head 32 drives the charging male port 322 to completely separate from the charging port, completing the emergency unlocking.

[0054] It should be noted that in this patent application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0055] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. A convenient charging device for mining trucks used in mining new energy excavators, characterized in that, include, A charger (10) is provided with a cable (20) extending from one side of the charger (10). The free end of the cable (20) is connected to a charging plug (30). The charging plug (30) specifically includes a housing (31) and a charging head (32). The cable (20) is coaxially and fixedly connected to the housing (31). The free end of the cable (20) is conductively connected to the female head (311) on the first side inside the housing (31). The charging head (32) is coaxially disposed inside the housing (31). The male head (321) at the first end of the charging head (32) is inserted and engaged with the female head (311). The second end of the charging head (32) is provided with a charging male port (322). The free end of the charging male port (322) passes through the second side of the housing (31) and is inserted into the charging port of the device to be charged. After the male charging port (322) is plugged into the charging port, the driving component (40) drives the locking component (60) to lock the charging port through the transmission component (50). After charging is completed, the driving component (40) drives the locking component (60) to release the locking of the charging port through the transmission component (50). When the charging male port (322) is plugged into the charging port, if the charging device is displaced, the unlocking component can drive the locking component (60) to disengage from the charging port through the transmission component (50), and the charging male port (322) will automatically separate from the charging port.

2. The convenient charging device for mining new energy excavators and mining trucks according to claim 1, characterized in that, The clamping assembly (60) and the transmission assembly (50) are both set in multiple groups and correspond one to one. The multiple clamping assemblies (60) are evenly arranged along the circumferential direction of the second end of the charging head (32). The clamping assembly (60) includes a clamping plate. The clamping plate is composed of a first clamping rod (611) and a second clamping rod (612) set at an angle. The connection between the first clamping rod (611) and the second clamping rod (612) is hinged to the outer circumferential wall of the second end of the charging head (32). The free end of the first clamping rod (611) extends above the male charging port (322) and is fixedly provided with a hook (613). The second clamping rod (612) is placed inside the housing (31). A first elastic element (62) is provided between the second clamping rod (612) and the charging head (32). The free end of the second clamping rod (612) is connected to the transmission assembly (50) for transmission.

3. A convenient charging device for mining new energy excavators and mining trucks according to claim 2, characterized in that, The transmission assembly (50) includes a lifting plate (51) and a pressure rod (52). The lifting plate (51) is located inside the housing (31). A support plate (323) fixedly installed on the charging head (32) slides with the lifting plate (51). The first end of the lifting plate (51) has a first long slot (511). The free end of the second clamping rod (612) is fixedly provided with a first guide post (63). The first guide post (63) is slidably connected to the first long slot (511). The housing (31) has a through hole (312). The pressure rod (52) slides through the through hole (312). The first end of the pressure rod (52) abuts against the second end of the lifting plate (51). The driving member (40) is connected to the second end of the pressure rod (52). The driving member (40) drives the lifting plate (51) to move closer to or away from the charging head (32) through the pressure rod (52).

4. A convenient charging device for mining new energy excavators and mining trucks according to claim 3, characterized in that, The drive unit (40) includes: The sliding ring (41) is coaxially slidably sleeved on the outside of the housing (31). The sliding ring (41) is connected to the housing (31) through multiple sets of elastic components (43). Multiple mounting plates (42) are fixedly disposed on the inner wall of the sliding ring (41) and correspond one-to-one with the pressure rod (52). The mounting plate (42) is provided with a first wedge-shaped surface (421), and the second end of the pressure rod (52) is provided with a second wedge-shaped surface (521) that is adapted to the first wedge-shaped surface (421). When the elastic component (43) is stretched, the mounting plate (42) drives the pressure rod (52) to move toward the charging head (32); when the elastic component (43) is reset, the pressure rod (52) moves away from the charging head (32).

5. A convenient charging device for mining new energy excavators and mining trucks according to claim 4, characterized in that, The elastic component (43) includes: The first guide shaft (431) has its axial direction parallel to that of the housing (31), and the first end of the first guide shaft (431) is fixedly connected to the end of the sliding ring (41); The first guide cylinder (432) is coaxially arranged with the first guide shaft (431). The first end of the first guide cylinder (432) is fixedly connected to the housing (31). The second end of the first guide shaft (431) extends into the interior of the first guide cylinder (432) from the second end of the first guide cylinder (432). A first spring (433) is provided between the second end of the first guide shaft (431) and the first end of the first guide cylinder (432).

6. A convenient charging device for mining new energy excavators and mining trucks according to claim 3, characterized in that, The unlocking component includes: Multiple fixed plates (71) correspond one-to-one with the lifting plate (51) and are fixedly installed on the inner wall of the housing (31) between the lifting plate (51) and the second end of the housing (31). The second end of the lifting plate (51) is provided with a third wedge-shaped surface (512), and the fixed plate (71) is provided with a fourth wedge-shaped surface (711) that is adapted to the third wedge-shaped surface (512). The first protrusion (324) is coaxially fixed at the first end of the charging head (32) and abuts against the inner wall of the first side of the housing (31); The second protrusion (72) is coaxially fixed to the inner wall of the housing (31). The second end of the charging head (32) passes through the second protrusion (72). A second spring (73) is sleeved on the charging head (32) located between the first protrusion (324) and the second protrusion (72).

7. A convenient charging device for mining new energy excavators and mining trucks according to claim 6, characterized in that, The second spring (73) is a high-stiffness spring.

8. A convenient charging device for mining new energy excavators and mining trucks according to claim 2, characterized in that, The first elastic element (62) is fixedly connected at its first end to the charging head (32) and at its second end to the second lever (612). The first elastic element (62) is a spring sheet or a torsion spring.

9. A convenient charging device for mining new energy excavators and mining trucks according to claim 3, characterized in that, Two pressure plates (522) are fixed at both ends of the pressure rod (52). The two pressure plates (522) are slidably connected to the through hole (312) respectively, and a third spring (523) is provided between the pressure plate (522) and the horizontal plate (313) at the bottom of the through hole (312).

10. A convenient charging device for mining new energy excavators and mining trucks according to claim 3, characterized in that, The second end of the charging head (32) is coaxially fixed with a baffle (325), the baffle (325) is slidably connected to the inner wall of the second end of the housing (31), and the free end of the lever passes through the through groove on the baffle (325).

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