Convenient-to-mount direct-current stabilized power supply

Abstract

The invention discloses a convenient-to-install direct-current stabilized power supply, which comprises a square power supply box with four vertex angles provided with bolts, locking strips which are circumferentially arranged are fixedly arranged at the end parts of the bolts, a handle is rotatably arranged between two adjacent bolts which are closer to each other, the convenient-to-install direct-current stabilized power supply also comprises a base plate with four jacks, and the jacks are internally communicated with columnar lock chambers. According to the direct-current stabilized power supply convenient to install, the power box is separated from the base plate through the rotating plate and the four plug pins to unlock the power box, the power box can be conveniently and rapidly transferred and used for a long distance, the rubber blocks on the locking bars are used for preferentially achieving the abrasion and consumption functions, the cost of the rubber blocks at the connecting positions can be lower than that of metal parts when the rubber blocks are replaced, and the replacement efficiency is improved. Meanwhile, severe abrasion and consumption to metal parts cannot be caused, shaking generated by bumping can be buffered, damage to a power box is reduced, then the rotating plate can continue to go deep into the rotating hole according to the abrasion degree of the hole opening, and the effect of maintaining the reinforced fastening function is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of portable DC power supplies, and more specifically to a portable DC regulated power supply. Background Art

[0002] In a solar power generation system, the generated direct current is usually stored using a DC regulated power supply, and a charge and discharge protection controller is also required to control and protect the changing voltage and current before inputting them into the DC regulated power supply.

[0003] According to the publication (announcement) number: CN111277151B, the publication (announcement) date: February 18, 2022, there is disclosed a vehicle-mounted DC regulated power supply, including connection bosses fixed on the left and right sides of the power supply, and limit frames fixed on the vehicle and located on the front and rear sides of the power supply. An inclined positioning plate with a rotating tightening mechanism is inserted into the inclined holes communicating with the connection bosses and the limit frames at the same time to realize clamping the power supply with a hoop.

[0004] In the prior art including the above patent, when special vehicles are used for long-term outdoor rescue, exploration, and adventure in well-lit areas, in order to have enough power, a large-capacity mobile power supply is installed in the vehicle. This kind of power supply is usually installed in the cargo beds of pickups and small trucks, and a solar panel is installed on the roof. At the same time, the power supply can also be pre-charged using indoor power cords and combined with solar power generation to cope with normal power consumption. However, due to the bumps during vehicle driving, the power supply needs to be fixed. At the same time, the power supply also needs to be frequently removed from the vehicle and transferred over a long distance. However, the common bolt and nut installation method cannot meet the quick disassembly in emergency situations. At the same time, repeated disassembly and assembly will cause serious wear to the installation holes of the power supply and the connection holes of the installation position. Moreover, the bumps will exacerbate the loss at the connection position, resulting in unstable installation of the power supply. It may become detached during vehicle travel, and re-drilling and fixing of the installation position are required, further reducing the loss of the installation position and also affecting the safety of the power supply. Summary of the Invention

[0005] The object of the present invention is to provide a portable DC regulated power supply, aiming to solve the problems mentioned above.

[0006] To achieve the above object, the present invention provides the following technical solutions: A portable DC regulated power supply includes a square power supply box with pins at its four top corners, and a circumferentially arranged lock bar is fixedly installed at the end of the pin. A handle is rotatably arranged between two adjacent pins that are relatively close to each other. It also includes a base plate with four insertion holes. A columnar lock chamber is communicated with the insertion holes, and a rotation hole located outside the insertion hole is opened at the port of the insertion hole. A drive block and a coupling component assembly are provided at the rotation axis center of the handle. The drive block is divided into an initial section and a buffer section according to the axial center spacing difference. A rotating plate is provided on the outer side of the bolt. Among them: When the buffer section switches to the initial section, the bolt is reset to insert into the jack, and the coupling component drives the bolt to rotate to embed the lock bar into the lock chamber, and the rotating plate slides into the rotating hole.

[0007] Preferably, it further includes a trigger seat provided with an arc section, and a trigger block is provided on the drive block, which slides on the arc section and decouples the coupling component from the bolt.

[0008] Preferably, a connecting rod that is inserted and slid with the drive block is fixedly installed on the trigger seat, and a connecting ring arranged coaxially with the connecting rod is provided on the handle.

[0009] Preferably, a circular plate that rotates at a specified position at the top corner of the power supply box is provided on the bolt, and a first elastic member that cooperates with the lock bar is fixedly installed on the circular plate.

[0010] Preferably, it further includes a circular shell with a knob on the outer side, and a lower end head that is inserted and cooperates with the rotating plate is provided in the circular shell.

[0011] Preferably, it further includes a torsion spring that presses the rotating plate into the rotating hole under energy storage.

[0012] Preferably, a threaded section that is threadedly connected with the circular shell is provided on the bolt, and a second elastic member that cooperates with the threaded section is provided on the circular shell.

[0013] Preferably, it further includes equidistantly arranged plate holes, and the torsion spring is inserted and cooperated with the plate holes to limit the movement of the lower end head.

[0014] Preferably, when the circular shell is disassembled from the threaded connection, the lower end head is disconnected from the rotating plate.

[0015] Preferably, a wiring terminal is provided on the power supply box, and a pressure bar that is in contact and cooperation with the wiring terminal is provided on the handle.

[0016] In the above technical solution, a portable DC regulated power supply provided by the present invention has the following beneficial effects: By screwing the rotating plate out of the rotating hole to release the enhanced fastening of the base plate, and then using two handles to drive four pins to disengage from the base plate, the power supply box can be quickly unlocked, facilitating the rapid long-distance transfer and use of the power supply box according to on-site needs. Moreover, the rubber blocks on the locking bar first serve as a wear and consumption function, enabling the replacement cost of the rubber blocks at the connection position to be relatively lower than that of metal parts. At the same time, it will not cause serious wear and consumption to the metal parts, and can also buffer the jitter generated by bumps, reducing damage to the power supply box. Then, according to the wear degree of the hole, the rotating plate can be further screwed into the rotating hole to achieve the effect of maintaining enhanced fastening, ensuring the stability of the connection position after long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0018] Figure 1 Schematic diagram of the assembly of the base plate and the power supply box provided by the embodiment of the present invention; Figure 2 Exploded view of the base plate and the power supply box provided by the embodiment of the present invention; Figure 3 For Figure 2 Enlarged view of part A; Figure 4 Partial cross-sectional view of the internal parts of the base plate and the assembly shell after installation provided by the embodiment of the present invention; Figure 5 Partial cross-sectional isometric view of the internal parts of the base plate and the assembly shell after installation provided by the embodiment of the present invention; Figure 6 For Figure 5 Enlarged view of part B; Figure 7 Schematic diagram of the assembly of the pin and the knob, the drive shaft part, and the handle provided by the embodiment of the present invention; Figure 8 Side view schematic diagram of the assembly of the pin and the drive shaft part and the knob provided by the embodiment of the present invention; Figure 9 Schematic diagram of the division of the operation path of the drive block provided by the embodiment of the present invention; Figure 10 Left-side perspective exploded view of the drive shaft part and the trigger seat provided by the embodiment of the present invention; Figure 11Schematic diagram of the right side view of the explosion of the drive shaft member and the trigger base provided by the embodiment of the present invention; Figure 12 Schematic diagram of the partial cross-sectional explosion of the handle and the connecting head provided by the embodiment of the present invention; Figure 13 Schematic diagram of the explosion of the plug pin, the knob, the torsion spring and the housing in the upward view provided by the embodiment of the present invention.

[0019] Explanation of reference numerals: 1. Base plate; 11. Jack; 12. Lock chamber; 13. Positioning hole; 14. Rotation hole; 15. Hole opening; 2. Power supply box; 21. Wiring terminal; 3. Assembly shell; 31. Operation port; 32. Opening; 33. Fixed plate; 34. Plate hole; 4. Handle; 41. Press strip; 42. Connecting head; 43. Connecting ring; 5. Drive shaft member; 51. First residual tooth; 52. Drive block; 521. Initial section; 522. Switching section; 523. Buffer section; 53. Trigger block; 54. Trigger base; 541. Arc section; 542. Flat section; 55. Connecting rod; 6. Pin head; 61. Circular plate; 62. Second residual tooth; 63. Plug pin; 64. Lock strip; 65. Wire port; 66. Threaded section; 7. Circular shell; 71. Knob; 8. Torsion spring; 81. Lower end head; 82. Upper end head; 9. Housing; 91. Rotating plate; 92. Upright rod; 93. Mounting hole. Detailed implementation manners

[0020] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further introduced in detail below with reference to the accompanying drawings.

[0021] As Figure 1-13 shown, a portable DC regulated power supply includes a square power supply box 2 with plug pins 63 arranged at four top corners, and a circumferentially arranged lock strip 64 is fixedly installed at the end of the plug pin 63. A handle 4 is rotatably arranged between two adjacent plug pins 63 with a relatively close distance; It further includes a base plate 1 provided with four jacks 11. A columnar lock chamber 12 is communicated in the jack 11, and a rotation hole 14 located outside the jack 11 is opened at the port of the jack 11; A drive block 52 and a coupling component are arranged at the rotation axis center of the handle 4, and the drive block 52 is divided into an initial section 521 and a buffer section 523 according to the axial distance difference. A rotating plate 91 is rotatably arranged outside the plug pin 63, wherein: The buffer section 523 switches to the initial section 521, so that the plug pin 63 is reset to insert into the jack 11, and the coupling component drives the plug pin 63 to rotate to embed the lock strip 64 into the lock chamber 12, and the rotating plate 91 slides and rotates into the rotation hole 14.

[0022] Specifically, a battery and some circuits are provided inside the power supply box 2, which is prior art. The base plate 1 is located in the truck bed and is fixed by welding or bolts, which is also prior art and will not be elaborated here. The purpose is to quickly disassemble and assemble the power supply box 2 from the base plate 1.

[0023] Furthermore, at the top corners of the power supply box 2, an assembly shell 3 is injection-molded using the battery case. The assembly shell 3 has partitions or brackets added at specific positions to provide support for the stable operation of internal components. At the same time, a rubber ring is bonded to the lower port of the assembly shell 3 to abut against the upper surface of the base plate 1. The handle 4 has a curved arc for easy grasping, and there is a space for the handle 4 to rotate on the outer shell of the power supply box 2.

[0024] Even further, the lower end of the locking bar 64 has an inclined surface, while the upper end is a flat surface, and a rubber block is fixedly installed on the flat surface. The outer side of the jack 11 is circumferentially provided with positioning holes 13 communicating therewith, so that the locking bar 64 can pass through the positioning holes 13 downward and then be rotated to lock. During the rotation process, the rubber block is deformed by extrusion (the inner port of the positioning hole 13 has a rounded corner for the rubber block to abut and slide in), so as to make up for the vertical movement gap generated synchronously when the bolt 63 rotates, making the rubber block play an elastic soft contact connection between the bolt 63 and the base plate 1.

[0025] Still further, a C-shaped pin head 6 is fixedly installed at the upper end of the bolt 63, so that the driving block 52 has sufficient moving space within the pin head 6. The side wall of the driving block 52 abuts against the inner side wall of the upper end of the pin head 6. The arc surface of the driving block 52 also has a switching section 522. The initial section 521 is the closest to the abutting position of the pin head 6 and gradually increases from the switching section 522 until the relaxation section 523 is the farthest. The relaxation section 523 has a flat surface, and during the process of abutting against the pin head 6, the bolt 63 is kept retracted inside the assembly shell 3. Since the handle 4 will be in a non-vertical state during the process of lifting the handle 4, the relaxation section 523 swings left and right to give the pin head 6 a certain range of abutting movement (as Figure 9 shown, the circle is divided into three fan-shaped areas of different sizes, and the medium-sized fan-shaped activity area is the activity area of the relaxation section 523. At this time, the handle 4 can move within this medium-sized fan-shaped area during the process of lifting the handle 4, and the smallest fan-shaped area corresponds to the default position of the bolt 63 (i.e., the locking position)), that is, at this time, the lower end of the bolt 63 will not extend out of the lower port of the assembly shell 3, avoiding the injury and wear caused by the extension of the lower end of the bolt 63 and the interference and bumping to the user.

[0026] Furthermore, the inlet of the rotating hole 14 is the hole opening 15, and the pitch of the rotating hole 14 is smaller than the thickness of the positioning hole 13, so as to avoid interfering with the locking of the locking bar 64 and to provide a good contact surface between the rotating plate 91 and the base plate 1. After the bolt 63 completes the locking work, the rotating plate 91 can provide a further fastening effect, making the disassembly and assembly between the power supply box 2 and the base plate 1 more convenient and efficient.

[0027] By screwing the rotating plate 91 out of the rotating hole 14 to release the enhanced fastening of the base plate 1, and then rotating the lifting handle 4 upward in a direction away from the power supply box 2, so that the bolt 63 drives the locking bar 64 to rotate a predetermined angle in the locking chamber 12, and then pulls out from the jack 11 and the positioning hole 13, so that the two handles 4 drive the four bolts 63 to disengage from the base plate 1, realizing the quick unlocking of the power supply box 2. During the process of lifting the handle 4, two people can lift the power supply box 2, or one person can carry the power supply box 2 with both hands, so as to conveniently transfer the power supply box 2 quickly and over a long distance according to the on-site needs. Moreover, the rubber block on the locking bar 64 preferably functions as wear consumption, enabling the rubber block at the connection position to have a lower cost than the metal parts when replaced. At the same time, it will not cause serious wear and tear to the metal parts, and can also buffer the jitter generated by bumps, reducing the damage to the power supply box 2. Then, according to the wear degree of the hole opening 15, the rotating plate 91 can be further screwed into the rotating hole 14 to achieve the effect of maintaining the enhanced fastening function, ensuring the stability of the connection position after long-term use, and making the power supply box 2 safer and more reliable during the vehicle transportation process.

[0028] As a further embodiment provided by the present invention, it further includes a trigger base 54 provided with an arc section 541, and a trigger block 53 is provided on the driving block 52 and slides on the arc section 541 to decouple the coupling component from the bolt 63.

[0029] Specifically, the arc sections 541 are symmetrically distributed in an arc shape at the end of the trigger base 54, and under the action of the two arc sections 541, a low position and a high position are formed in a relative arrangement. The high position forms a convex flat section 542, and the trigger block 53 abuts against the low position of the trigger base 54 in the default state.

[0030] Furthermore, a driving shaft member 5 is provided at the rotation axis of the handle 4 (the trigger block 53 is integrally formed at the end of the driving shaft member 5), and the driving block 52 is fixedly sleeved on the driving shaft member 5. The coupling component is composed of a first partial tooth 51 and a second partial tooth 62. The first partial tooth 51 is arranged on the same side as the driving block 52 and is welded to the driving shaft member 5, while the second partial tooth 62 is welded to the upper edge of the pin head 6. In the default state, the driving shaft member 5 meshes the two partial teeth.

[0031] During the rotation of the drive shaft member 5 at the unlocking station, the trigger block 53 first slides at a low position to complete the rotation driving action, and then climbs along the arc section 541 from the low position to the flat section 542, using the lateral spacing difference to disengage the two remaining teeth. During this process, after the locking bar 64 is pulled out, the latch 63 rotates and resets, completing the unlocking work of the latch 63, enabling the latch 63 to have stable locking and unlocking operations. At the same time, the trigger block 53 slides in an arc shape on the flat section 542, which corresponds to the handle 4 swinging left and right in the vertical direction, facilitating a safe and stable connection and support effect for the drive shaft member 5.

[0032] As another embodiment further provided by the present invention, a connecting rod 55 that is inserted and slid with the driving block 52 is fixedly installed on the trigger seat 54, and a connecting ring 43 arranged coaxially with the connecting rod 55 is provided on the handle 4.

[0033] Specifically, the connecting rod 55 is integrally formed at the axis of the trigger seat 54 and is located in a hole opened at the axis of the drive shaft member 5, and a tension spring is fixedly installed between the connecting rod 55 and the hole, so that the tension spring deforms when the drive shaft member 5 moves.

[0034] Furthermore, a connecting head 42 with a vertical hole opened at the lower end is welded on the connecting ring 43, and the end of the handle 4 has a rod that is inserted and slid in the hole, and a spring is fixedly installed between the rod and the hole.

[0035] Even further, a circumferentially arranged groove is opened on the inner wall of the connecting ring 43, and a protruding strip that slides in the groove is fixedly installed on the side wall of the drive shaft member 5. At the same time, a bracket for the axial sliding of the drive shaft member 5 is also fixedly installed inside the assembly shell 3, aiming to make the drive shaft member 5 move more stably.

[0036] By rotating the handle 4, the connecting ring 43 drives the drive shaft member 5 to rotate, so as to realize the energy storage work of the latch 63. At the same time, the drive shaft member 5 can also move normally and stably at the axis of rotation of the handle 4, making the actual operation process more convenient, with fewer steps, and the supporting force is also transmitted to the assembly shell 3, making the stability higher.

[0037] As another embodiment further provided by the present invention, a circular plate 61 that rotates at a specified position at the top corner of the power supply box 2 is provided on the latch 63, and a first elastic member that cooperates with the locking bar 64 is fixedly installed on the circular plate 61.

[0038] Specifically, a torsion spring is also provided at the rotation position of the circular plate 61, and the torsion spring and its installation method are prior art and will not be elaborated here. The first elastic member is specifically a spring and is welded between the upper end of the pin head 6 and the circular plate 61, facilitating the first elastic member to quickly be used for the movement and release work of the latch 63, and at the same time, it is also convenient to cooperate with the rubber block on the locking bar 64.

[0039] The circular plate 61 rotates on the inner wall of the assembly shell 3, and the torsion spring enables the inserted pin 63 to reset after rotation. Moreover, the first elastic member in the locked state restores its deformation. At this time, the deformation energy absorption of the first elastic member can be utilized to cooperate with the damping formed by the rubber block and the rubber ring to achieve buffering of the jitter of the power supply box 2, further reducing the vibration damage suffered by the power supply box 2 and strengthening the protection of the battery safety.

[0040] As yet another embodiment further provided by the present invention, it further includes a circular shell 7 with a knob 71 provided on the outside, and a lower end head 81 inserted and matched with the rotating plate 91 is provided in the circular shell 7.

[0041] Specifically, a horn-shaped operation port 31 for the knob 71 to protrude and operate is opened on the side wall of the assembly shell 3. There is a vertical opening 32 below the notch, and the operation port 31 and the opening 32 are only provided on both sides of one of the handles 4. Moreover, a spring located outside the inserted pin 63 is rotatably provided on the horizontal support plate (with a circular hole outside the inserted pin 63) in the assembly shell 3, and a columnar sleeve 9 also located outside the inserted pin 63 is welded to the lower end of the spring. The rotating plate 91 is fixedly installed at the lower end of the sleeve 9, and the rotating plate 91 is made by bending and twisting a steel metal plate, and the hardness it has can achieve an efficient wear-resistant effect.

[0042] Furthermore, a hole for threading is opened on the sleeve 9, and a wire port 65 for guiding vertical arrangement is opened on the side wall of the inserted pin 63. At the same time, an elastic metal sheet for clamping and fixing the hoop wire is welded in the wire port 65 or a rubber flap for pressing and fixing the wire is adhered. The purpose is to extend one end of the wire downward to connect to the power supply box 2 (this section will not be loosened or interfered due to the rotation of the sleeve 9), and the other end is wound and collected by the sleeve 9. After the wound section of the wire is taken off from the charge and discharge protection controller, it can be directly transferred along with the power supply box 2 without removing both ends of the wire at the same time, which also serves the purpose of shortening the transfer time. Furthermore, the wound section of the wire can be pulled out or taken in from the vertical opening 32.

[0043] Even further, a ring-shaped plate member is welded to the upper end of the sleeve 9, and a mounting hole 93 for the lower end head 81 to be inserted is opened on the plate member. At the same time, the mounting holes 93 on the plate member are also arranged in an equidistant arc shape. A vertical rod 92 is welded between the ring-shaped plate member and the rotating plate 91 to limit a section of the released wire, and the lower end of the vertical rod 92 is flush with the lower end of the sleeve 9. The purpose is to provide a supporting effect on the rotating plate 91, and at the same time, it can also provide a proper limit to the rotating hole 14 after insertion and wear, avoiding continued insertion and causing tearing damage to the connection position of the rotating plate 91, and realizing the protection function of the rotating plate 91.

[0044] The round shell 7 is connected to the sleeve shell 9 by utilizing the lower end 81, and in the process of turning the knob 71, the sleeve shell 9 drives the rotary plate 91 to be inserted into the rotary hole 14 for tightening, so that two of the pins 63 at the four connection positions are reinforced and fixed, which can not only improve more locking effects, but also avoid the cumbersome steps caused by the same operation of the four assembly shells 3. At the same time, only turning one of the knobs 71 can also achieve the effect of enhanced fixing, that is, under the premise that the wires are not connected, the sleeve shell 9 driven by the knob 71 is only responsible for tightening, so it is also possible to provide tightening at one position, so that the tightening of the connection position can be modified according to actual needs, thereby improving the operational diversity of locking and fixing the power box 2.

[0045] As another embodiment further provided by the present invention, it also includes a coil spring 8 which presses the rotary plate 91 toward the rotary hole 14 under accumulated force.

[0046] Specifically, the lower end 81 is fixedly installed on one end of the coil spring 8, and the upper end 82 is fixedly installed on the other end of the coil spring 8 and extends out of the upper end of the circular shell 7. The upper end of the circular shell 7 is provided with an arc-shaped channel for the upper end 82 to slide, and the lower end is provided with an annular channel for the lower end 81 to slide, so that the two ends can store force on the coil spring 8 when the elastic member is plugged in and fixed.

[0047] The wire is released from the casing 9 by pulling, so that the casing 9 is driven to rotate and the lower end 81 is used to store force on the coil spring 8. In the process, the end of the rotary plate 91 slides circumferentially above the positioning hole 13 in the direction away from the rotary hole 14, and continuously passes through the port 15. At the same time, the spring at the upper end of the casing 9 is compressed until the wire is pulled out to a suitable length. When the casing 9 is released, the spring is reset to enable the end of the rotary plate 91 to have the ability to be inserted downward, and the rotary plate 91 is driven to find the rotary hole under the action of the coil spring 8 restoring a certain deformation. 14 and inserted, so as to loosen the pulled-out wire, and facilitate the connection of the wire with the charge and discharge protection controller according to the length requirement. At the same time, the base plate 1 can be kept pressed and tightened under the elastic potential energy of the coil spring 8. Then, the knob 71 can be turned to unlock the rotary plate 91, and provide upward pressure on the housing 9 to move away from the tightening position, so as to facilitate the resetting of the coil spring 8 and rewind the wire, thereby strengthening the tightening effect of the plug-in position and achieving the purpose of collecting the wire harness and quickly disconnecting the auxiliary power box 2.

[0048] As another embodiment further provided by the present invention, the latch pin 63 is provided with a threaded segment 66 threadedly connected to the circular shell 7 , and the circular shell 7 is provided with a second elastic member matched with the threaded segment 66 .

[0049] Specifically, the second elastic member is also a spring, with one end welded to the upper end face of the circular shell 7 and the other end rotatably connected to another horizontal support plate within the assembly shell 3 (which also has a hole outside the bolt 63), so as to individually change the vertical position of the circular shell 7. The threaded section 66 is located below the circular shell 7 by default.

[0050] When the removed power supply box 2 is placed and used, the handle 4 is adjusted to the default state (corresponding to the reset state of the bolt 63). At this time, the lower end of the bolt 63 extends out of the assembly shell 3 again. When the placement position is a flat surface, the gravity of the power supply box 2 will compress the first elastic member and retract the bolt 63 into the assembly shell 3. If the circular shell 7 is actively threadedly connected to the threaded section 66 during the rotation of the knob 71 and is limited by the torsion spring on the circular plate 61 reaching a specified position and being unable to rotate, it prompts the bolt 63 to be locked by threaded rotation, thus fixing the lower end of the extended bolt 63, enabling the two bolts 63 to perform a unilateral lifting function on the flat surface where the power supply box 2 is placed, causing the wiring position of the power supply box 2 to tilt actively for the convenience of the user to connect wires. And during the continuous rotation of the circular shell 7, the threaded section 66 drives the bolt 63 to move upward and compress the first elastic member. At this time, the extended length of the bolt 63 will be shortened to slightly adjust the lifting angle of the power supply box 2 according to the on-site needs (within the range of the arc-shaped hole). Similarly, the extended bolt 63 can also be inserted into soft soil for support and fixation, making the use range of the power supply box 2 wider, more stable and more convenient during the placement and use process.

[0051] As yet another embodiment further provided by the present invention, it further includes equally spaced plate holes 34, and the coil spring 8 is inserted and cooperated with the plate holes 34 to limit the movement of the lower end head 81.

[0052] Through the second elastic member, the upper end head 82 is inserted into the plate hole 34 opened on the fixing plate 33 installed in the assembly shell 3 in the default state. At the same time, the screw groove on the circular plate 61 and the protrusion on the threaded section 66 just match, and the rubber block is compressed to make up for the screw-in spacing during the matching, so as to fix the position of the circular plate 61 (when the bolt 63 cannot move vertically, the circular plate 61 loses the driving force of the thread to rotate). Therefore, the circular plate 61 will not interfere with the winding of the coil spring 8. Then, by restricting the upper end head 82 at one end of the path of the arc-shaped hole, the force generated by the rotation of the lower end head 81 of the sleeve 9 is sent to the coil spring 8 and stored, so as to ensure the tightening stability of the locking position and the reset stability after release.

[0053] As yet another embodiment further provided by the present invention, the threaded connection of the circular shell 7 is released, causing the lower end head 81 to disconnect from the rotating plate 91.

[0054] Specifically, the plate hole 34 and the mounting hole 93 are located on the same vertical line, and the coil spring 8 itself is framed by a U-shaped snap in the circular shell 7, or other framing methods are adopted to enable the coil spring 8 to undergo normal deformation and have an axial deformation range, so as to adjust the up-and-down insertion position of the coil spring 8.

[0055] After wear appears at the orifice 15, the rotating plate 91 penetrates deeper into the rotating hole 14. While ensuring the tightening effect, the change in position will cause the coil spring 8 to use a part of the force as the rotation of the rotating plate 91 after release. Therefore, different forces are required to pull the coil spring 8 to store energy again when releasing the tightening. For example, if the length of the coil spring 8 pulled in a circular shape is analogized to a straight line length, that is, the length pulled under normal conditions is 20, and 1 needs to be retracted when tightening, the effective length is 19. Then, when released, it changes from 19 to 20 after adding 1. When worn, the length is 20, 2 needs to be retracted when tightening, the effective length is 18, and when released, it changes from 18 to 19 after adding the retracted 1, but actually needs to become 20, or 2 can be directly retracted to compensate for the actual requirement of 20. Therefore, a greater pulling force is also required to ensure complete retraction. On the one hand, it will require increasing the force applied to the wire, causing damage to the wire, and on the other hand, it will also exceed the normal consumption of the coil spring 8, shortening the service life of the coil spring 8. Therefore, subsequently, when the coil spring 8 is in the default state, the second elastic member is pressed to deform so that the lower end 81 is pulled out of the mounting hole 93, and then the coil spring 8 is axially deformed in the circular shell 7 by pressing the upper end 82, prompting the upper end 82 to be pulled out of the plate hole 34. Then, the rotating plate 91 is inserted into the rotating hole 14 to determine the position of the sleeve 9, and then the lower end 81 is adjusted to be inserted into the predetermined mounting hole 93 as needed. Finally, the upper end 82 is released to be inserted into the corresponding plate hole 34 to achieve fixation, thereby changing the position of the entire deformation area of the coil spring 8 to adapt to the original tensile deformation state and ensuring the normal service life of the coil spring 8.

[0056] As another embodiment further provided by the present invention, a wiring terminal 21 is provided on the power supply box 2, and a pressure strip 41 that is in abutting cooperation with the wiring terminal 21 is provided on the handle 4.

[0057] The rubber strip adhered to the end face of the pressure strip 41 is used to cover and shield the wiring terminal 21, and the spring at the end of the handle 4 is used to ensure the stability of the pressure strip 41 abutting against the wiring terminal 21, so that the wiring terminal 21 is protected during transportation and disassembly and use, ensuring the safety of the wiring position.

[0058] Working principle: By screwing out the rotating plate 91 from the rotating hole 14 to release the strengthened fastening of the base plate 1, and then rotating and lifting the handle 4 away from the power supply box 2, the latch 63 drives the locking bar 64 to rotate a predetermined angle in the locking chamber 12, and then pulls it out from the jack 11 and the positioning hole 13, so that the two handles 4 drive the four latches 63 to disengage from the base plate 1, realizing the quick unlocking of the power supply box 2. Then, according to the wear degree of the orifice 15, the rotating plate 91 can be further screwed into the rotating hole 14 to achieve the effect of maintaining the strengthened fastening function, ensuring the stability of the connection position after long-term use.

[0059] Only some exemplary embodiments of the present invention have been described in an illustrative manner above. Undoubtedly, for those of ordinary skill in the art, various different ways can be used to modify the described embodiments without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. A portable DC regulated power supply, characterized in that, It comprises a square power supply box (2) with latches (63) arranged at four corners, and circumferentially arranged locking strips (64) are fixedly mounted on the ends of the latches (63), and a handle (4) is rotatably arranged between two adjacent latches (63) that are close to each other; It also includes a base plate (1) with four insertion holes (11), wherein the insertion holes (11) are connected to a columnar lock chamber (12), and a rotary hole (14) located outside the insertion hole (11) is formed at the end of the insertion hole (11); A driving block (52) and a coupling component assembly are arranged at the rotation axis of the handle (4), and the driving block (52) is divided into an initial section (521) and a relaxation section (523) according to the difference in the axis spacing, and a rotating plate (9) is rotatably arranged outside the latch (63), wherein: The relaxation section (523) switches to the initial section (521), causing the latch (63) to reset to be inserted into the insertion hole (11), and causing the coupling assembly to drive the latch (63) to rotate to embed the lock bar (64) into the lock chamber (12), and the rotary plate (9) to slide and rotate into the rotary hole (14).

2. The portable DC regulated power supply according to claim 1, characterized in that, It also includes a trigger seat (54) provided with an arc segment (541), and the driving block (52) is provided with a trigger block (53) which slides on the arc segment (541) and causes the coupling component to decouple the latch (63).

3. The portable DC regulated power supply according to claim 2, characterized in that A connecting rod (55) is fixedly mounted on the trigger seat (54) and is plugged and slidably connected to the driving block (52). A connecting ring (43) is arranged coaxially with the connecting rod (55) on the handle (4).

4. The portable DC regulated power supply according to claim 2, wherein, The latch (63) is provided with a circular plate (61) that rotates at a designated position at the top corner of the power supply box (2), and a first elastic member that matches the locking strip (64) is fixedly mounted on the circular plate (61).

5. The portable DC regulated power supply according to claim 2, characterized in that, It also comprises a round shell (7) with a knob (71) arranged on the outside, wherein a lower end head (81) which is plug-fitted with a rotary plate (91) is arranged in the round shell (7).

6. The portable DC regulated power supply according to claim 5, characterized in that, It also includes a coil spring (8) that causes the rotary plate (91) to apply pressure to the rotary hole (14) when accumulating force.

7. The portable DC regulated power supply according to claim 6, characterized in that, The latch pin (63) is provided with a threaded section (66) threadably connected to the circular shell (7), and the circular shell (7) is provided with a second elastic member matching the threaded section (66).

8. The portable DC regulated power supply according to claim 7, characterized in that, It also includes plate holes (34) arranged at equal intervals, and the coil spring (8) is plugged into and matched with the plate holes (34) to limit the movement of the lower end head (81).

9. The portable DC regulated power supply according to claim 8, characterized in that, The threaded connection of the circular shell (7) is released so that the lower end (81) is disconnected from the rotary plate (91).

10. The portable DC regulated power supply according to claim 1, wherein The power box (2) is provided with a wiring terminal (21), and the handle (4) is provided with a pressure strip (41) that contacts and cooperates with the wiring terminal (21).

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