Low-voltage line puncturing power taking device

Abstract

The invention relates to the technical field of conductive connection, and particularly discloses a low-voltage line puncture power taking device, which comprises a fixed wire supporting assembly, a power taking assembly, a power taking assembly and a power taking assembly, and is characterized in that the fixed wire supporting assembly is used for supporting one end, close to a wiring terminal, of a wire in a low-voltage line assembly; the movable wire supporting assembly is used for supporting one end, far away from the wiring terminal, of a wire in the low-voltage line assembly; the puncture electricity taking piece is used for conducting puncture electricity taking on the wire; the traction piece can horizontally move relative to the puncture electricity taking piece and is used for performing traction and stretching on the wire in the movable wire supporting assembly; through cooperation of the fixed wire supporting assembly and the movable wire supporting assembly, a wire in the low-voltage line assembly is positioned and supported, and it is ensured that the wire is kept stable in the puncturing process; and meanwhile, horizontal traction and pulling are conducted on the wire through the cooperation effect of the traction piece and the movable wire supporting assembly, so that the wire is straightened and tightened, puncture electricity taking failure caused by deviation of the wire and the puncture electricity taking piece is avoided, and therefore the precision and reliability of puncture electricity taking are improved.

Description

Technical Field

[0001] The invention relates to the technical field of conductive connection, and more specifically, to a low-voltage line puncture power extraction device. Background Art

[0002] In the commissioning and maintenance of low-voltage line systems (below 24V), it is often necessary to obtain real-time electrical signals through puncture to detect circuit status; The existing puncture power extraction still has the following technical defects: First, low-voltage lines often use multiple strands of thin-core wires, and the wiring terminals are prone to natural bending after being connected to the wires. During puncture, the wires are easily offset by pressure, resulting in misalignment between the puncture needle and the battery cell, causing poor contact or even failure to pierce the insulation layer; second, when multiple wires are simultaneously powered, the difference in the curvature of each line causes the puncture point to be unable to maintain vertical alignment with the wiring terminal, exacerbating the risk of offset; third, the existing puncture needles only rely on single-point penetration, and the contact area is insufficient, resulting in increased contact resistance and aggravated local temperature rise. Long-term power extraction may cause overheating and melting; In addition, puncture in a loose wire state can easily cause uneven penetration depth, and some cells are not effectively contacted, resulting in fluctuations in test data; although the existing technology attempts to use a fixed fixture, it lacks an axial traction mechanism for the wire, and cannot eliminate the initial bending and deformation caused by puncture, making it difficult to ensure puncture accuracy and electrical stability. Therefore, there is an urgent need for a low-voltage line puncture power extraction device that can achieve precise positioning of the wire, dynamic tightening, and multi-point stable contact. Summary of the invention

[0003] In order to overcome the above technical problems, the present invention proposes a low-voltage line puncture power extraction device.

[0004] The purpose of the present invention can be achieved through the following technical solutions: A low-voltage line puncture power extraction device, comprising: A base, comprising a base and a top plate fixed above the base; A fixed wire supporting assembly is fixedly arranged on the base and is used to support one end of the wire in the low-voltage line assembly close to the wiring terminal; A movable wire supporting assembly, which is horizontally movable and arranged on the base, and is used to support an end of the wire in the low-voltage line assembly away from the wiring terminal; The piercing and power-collecting parts are provided in multiple groups and are distributed just above the fixed wire-supporting components in a liftable manner, and are used to pierce the wires and collect power; A lifting member, which is arranged on the top plate and is used to drive the piercing and power-collecting member; The pulling member is movably arranged at the output end of the lifting member and can move horizontally relative to the piercing power-taking member, and is used to pull and stretch the wires in the movable wire-supporting assembly.

[0005] As a further solution of the present invention: the fixed wire supporting assembly includes a fixed platform fixed on the base, the upper end surface of the fixed platform is provided with a first wire supporting plate, and the first wire supporting plate is provided with a plurality of first positioning grooves adapted to the wires.

[0006] As a further solution of the present invention: the movable wire supporting assembly includes a slide rail fixed on the base and a slide table slidably installed on the slide rail, a second wire supporting plate is arranged on the upper end surface of the slide table, and a plurality of second positioning grooves adapted to the wires are opened on the second wire supporting plate.

[0007] As a further solution of the present invention: the lifting member includes a lifting cylinder fixed on the top plate, a lifting platform is installed on the protruding end of the lifting cylinder, the piercing power-collecting member is fixedly arranged on the lower end surface of the lifting platform, and the pulling member is movably arranged under the lifting platform and can move horizontally relative to the lifting platform.

[0008] As a further solution of the present invention: the puncture power-collecting component comprises a power-collecting block fixed on a lifting platform, and a puncture needle adapted to the wire is electrically connected to the lower end of the power-collecting block.

[0009] As a further solution of the present invention: the piercing power collection component also includes a sleeve arranged on the power collection block, and telescopic rods are symmetrically and movably arranged on both sides of the sleeve, and a first pressure block is installed at the lower end of the telescopic rod, and an arc surface matching the outer contour of the wire is arranged at the bottom of the first pressure block; a first spring is movably sleeved on the telescopic rod, and the two ends of the first spring are respectively abutted against the sleeve and the first pressure block.

[0010] As a further solution of the present invention: in the initial state, the height of the first pressing block is lower than the puncture needle.

[0011] As a further solution of the present invention: a detachable slice is integrally provided on the upper end of the puncture needle, the detachable slice is electrically connected to the puncture needle, and the extending direction of the detachable slice is consistent with the extending direction of the wire.

[0012] As a further solution of the present invention: the pulling member includes a mounting plate, and the mounting plate is provided with a plurality of second pressing blocks adapted to the corresponding second positioning grooves; The mounting plate is symmetrically provided with latches on both sides, and the slide is provided with sockets adapted to the latches.

[0013] As a further solution of the present invention: it also includes a transmission member, the transmission member includes an L-shaped bracket, and the L-shaped bracket is provided with vertical sliding grooves and horizontal sliding grooves distributed vertically; A vertical slider slidably connected to the vertical slide groove is fixed on the lifting platform, a horizontal slider slidably connected to the horizontal slide groove is fixed on the mounting plate, and a connecting rod is hinged between the vertical slider and the horizontal slider; A guide rod is fixed in the transverse sliding groove, and a second spring that abuts against the transverse sliding block is movably sleeved on the guide rod.

[0014] Beneficial effects of the present invention: Through the cooperation of the fixed wire support assembly and the movable wire support assembly, the wire in the low-voltage line assembly is positioned and supported to ensure that the wire remains stable during the puncture process; at the same time, the pulling member and the movable wire support assembly are used to pull the wire horizontally to straighten and tighten the wire, thereby avoiding the failure of puncture power extraction due to the deviation of the wire and the puncture power extraction member, thereby improving the accuracy and reliability of puncture power extraction; During the puncture and power extraction process, the pulling member drives the movable wire supporting assembly to move horizontally under the drive of the lifting member, and horizontally pulls the end of the wire away from the terminal. This process not only straightens and tightens the wire, but also ensures that the position of the wire on the fixed wire supporting assembly remains aligned with the corresponding terminal in the vertical direction, further improving the success rate of puncture and power extraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a three-dimensional schematic diagram of the present invention; Figure 2 A three-dimensional schematic diagram of another viewing angle of the present invention; Figure 3 It is a structural schematic diagram of a fixed wire supporting assembly and a movable wire supporting assembly in the present invention; Figure 4 It is a structural schematic diagram of the lifting member in the present invention; Figure 5 It is a schematic diagram of the structure of the puncture power extraction component in the present invention; Figure 6 It is a structural schematic diagram of the puncture power extraction component in the present invention from another perspective; Figure 7 It is a schematic diagram of the structure of the pulling member and the transmission member in the present invention; Figure 8 It is a structural schematic diagram of the pulling member and the transmission member in the present invention from another perspective; Fig. 9 This is a schematic diagram of the first state of puncture power extraction in the present invention; Fig.10 This is a schematic diagram of the second state of puncture power extraction in the present invention; Fig.11 It is a schematic diagram of the third state of puncture power extraction in the present invention.

[0017] In the figure: 100, base; 110, base; 120, top plate; 200, fixed wire supporting assembly; 210, fixed platform; 220, first wire supporting plate; 230, first positioning groove; 300, movable wire supporting assembly; 310, slide rail; 320, slide platform; 330, second wire supporting plate; 340, second positioning groove; 400, lifting member; 410, lifting cylinder; 420, lifting platform; 500, puncture power extraction member; 510, power extraction block; 520, puncture needle; 530, demolition slice; 540, sleeve; 550, telescopic rod; 560, first pressing block; 570, arc surface; 580, first spring; 600, pulling member; 610, mounting plate; 620, second pressing block; 630, latch; 700, transmission member; 710, L-shaped bracket; 720, vertical slide groove; 730, vertical slider; 740, horizontal slide groove; 750, horizontal slider; 760, connecting rod; 770, guide rod; 780, second spring; 800. Low-voltage circuit assembly; 810. Wiring terminal; 820. Wire. DETAILED DESCRIPTION

[0018] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0019] See also Figure 1 and Figure 2The present invention discloses a low-voltage line puncture power extraction device, comprising a base 100, a fixed wire supporting assembly 200, a movable wire supporting assembly 300, a lifting member 400, a puncture power extraction member 500 and a pulling member 600; the base 100 comprises a base 110 and a top plate 120 fixed above the base 110; the fixed wire supporting assembly 200 is fixedly arranged on the base 110, and is used to support one end of the wire 820 in the low-voltage line assembly 800 close to the terminal 810; the movable wire supporting assembly 300 can be horizontally movably arranged on the base 110 0, used to support the end of the wire 820 in the low-voltage line assembly 800 away from the terminal 810; the piercing power-collecting member 500 is provided with multiple groups and can be lifted and lowered and distributed directly above the fixed wire supporting assembly 200, used to pierce the wire 820 to collect electricity; the lifting member 400 is provided on the top plate 120, used to drive the piercing power-collecting member 500; the pulling member 600 is movably provided at the output end of the lifting member 400 and can be horizontally moved relative to the piercing power-collecting member 500, used to pull and stretch the wire 820 in the movable wire supporting assembly 300; Specifically, when puncturing and extracting electricity from the low-voltage line assembly 800, first arrange the plurality of wires 820 in the low-voltage line assembly 800 correspondingly on the fixed wire support assembly 200 and the movable wire support assembly 300, wherein the end of the wire 820 close to the terminal 810 is located in the fixed wire support assembly 200, and the end of the wire 820 away from the terminal 810 is located in the movable wire support assembly 300; then, the lifting member 400 drives the puncturing and extracting electricity member 500 and the pulling member 600 to move downward synchronously, so that the pulling member 600 contacts the movable wire support assembly 300 and presses the wire 820 on the movable wire support assembly 300, and at the same time, the puncturing and extracting electricity member 500 gradually approaches the corresponding Wire 820; then the lifting member 400 drives the piercing power-collecting member 500 to continue to move downward to pierce the wire 820 for power collection, and at the same time, the pulling member 600, under the action of the lifting member 400, drives the movable wire-supporting assembly 300 to move horizontally toward the side away from the fixed wire-supporting assembly 200, and utilizes the cooperation of the pulling member 600 and the movable wire-supporting assembly 300 to horizontally pull the end of the wire 820 away from the terminal 810 to straighten and tighten the wire 820, ensuring that the position of the wire 820 on the fixed wire-supporting assembly 200 is aligned with the corresponding terminal 810 in the vertical direction, so as to avoid failure of the piercing power collection due to the deviation of the wire 820 and the corresponding piercing power-collecting member 500.

[0020] It should be noted that, by the cooperation of the fixed wire support assembly 200 and the movable wire support assembly 300, the wire 820 in the low-voltage line assembly 800 is positioned and supported, ensuring that the wire 820 remains stable during the puncture process; at the same time, the wire 820 is pulled horizontally by the cooperation of the pulling member 600 and the movable wire support assembly 300, so that the wire 820 is straightened and tightened, avoiding the failure of puncture power extraction due to the deviation of the wire 820 and the puncture power extraction member 500, thereby improving the accuracy and reliability of puncture power extraction; During the puncture and power extraction process, the pulling member 600 drives the movable wire supporting assembly 300 to move horizontally under the drive of the lifting member 400, and horizontally pulls the end of the wire 820 away from the terminal 810. This process not only straightens and tightens the wire 820, but also ensures that the position of the wire 820 on the fixed wire supporting assembly 200 remains aligned with the corresponding terminal 810 in the vertical direction, further improving the success rate of puncture and power extraction.

[0021] In one embodiment, see Figure 3 The fixed wire supporting assembly 200 includes a fixed platform 210 fixed on the base 110, and a first wire supporting plate 220 is provided on the upper end surface of the fixed platform 210. The first wire supporting plate 220 is provided with a plurality of first positioning grooves 230 adapted to the wires 820; The movable wire supporting assembly 300 includes a slide rail 310 fixed on the base 110 and a slide table 320 slidably mounted on the slide rail 310. The upper end surface of the slide table 320 is provided with a second wire supporting plate 330. The second wire supporting plate 330 is provided with a plurality of second positioning grooves 340 adapted to the wires 820. Specifically, when assembling the low-voltage line assembly 800, the plurality of wires 820 led out from the terminal block 810 are sequentially placed into the corresponding first positioning groove 230 and the second positioning groove 340, and the wires 820 are preliminarily arranged and positioned so that the subsequent pulling member 600 and the second wire support plate 330 can cooperate to pull the end of the wire 820 away from the terminal block 810.

[0022] For further information, see Figure 4 The lifting member 400 includes a lifting cylinder 410 fixed on the top plate 120, a lifting platform 420 is installed at the extended end of the lifting cylinder 410, the piercing power-collecting member 500 is fixedly arranged on the lower end surface of the lifting platform 420, and the pulling member 600 is movably arranged under the lifting platform 420 and can move horizontally relative to the lifting platform 420; Specifically, when the lifting cylinder 410 drives the lifting platform 420 to descend, it can drive each group of piercing power-taking components 500 and pulling components 600 to move vertically downward synchronously. When the pulling component 600 is combined with the movable wire support assembly 300 below it, the pulling component 600 cannot continue to move downward. As the lifting platform 420 continues to move downward, the pulling component 600 is forced to move horizontally, thereby prompting the pulling component 600 and the movable wire support assembly 300 to gradually move laterally away from the fixed wire support assembly 200, so as to achieve horizontal traction and pulling of the wire 820.

[0023] It should be noted that, as the pulling member 600 pulls the wire 820, the wire 820 will move a certain distance along the axial direction of the wire 820 in the corresponding first positioning groove 230 and the second positioning groove 340, until the terminal 810 abuts against the side of the first wire supporting plate 220 under the pulling force of the wire 820, at which time the terminal 810 cannot continue to follow the wire 820 to move toward the side of the movable wire supporting assembly 300, and then the pulling member 600 and the movable wire supporting assembly 300 can be used to pull and straighten the wire 820; Even if the bending conditions of the wires 820 are inconsistent in the initial state, as the pulling member 600 pulls, the wires 820 can be gradually straightened one after another; when all the wires 820 are completely tightened and straightened, as the pulling member 600 continues to move horizontally, the pulling member 600 and the movable wire support assembly 300 begin to slide relative to the wires 820, but it can still ensure that the wires 820 always remain straight during the puncture and power extraction process.

[0024] In yet another embodiment, see Figure 5 and Figure 6 The puncture power-collecting member 500 includes a power-collecting block 510 fixed on the lifting platform 420, and a puncture needle 520 adapted to the wire 820 is electrically connected to the lower end of the power-collecting block 510; Specifically, when the lifting platform 420 drives the puncture needle 520 downward to penetrate into the wire 820 , the puncture needle 520 contacts the battery cell in the wire 820 , thereby enabling electrical connection between the wire 820 and the power extraction block 510 , thereby achieving puncture and power extraction of the low-voltage line assembly 800 .

[0025] Furthermore, considering that during the process of the puncture needle 520 piercing the wire 820, since the contact area between the puncture needle 520 and the wire 820 is small, in the initial stage of the puncture needle 520 piercing the wire 820, the wire 820 is easily deviated to one side due to the misalignment of the force applied by the puncture needle 520 on the wire 820, thereby affecting the subsequent smooth puncture of the puncture needle 520; To do this, see Figure 5 and Figure 6The piercing power extraction member 500 further includes a sleeve 540 disposed on the power extraction block 510, and telescopic rods 550 are symmetrically and movably disposed on both sides of the sleeve 540, and a first pressing block 560 is installed at the lower end of the telescopic rod 550, and an arc surface 570 adapted to the outer contour of the wire 820 is disposed at the bottom of the first pressing block 560; a first spring 580 is movably sleeved on the telescopic rod 550, and the two ends of the first spring 580 are respectively in contact with the sleeve 540 and the first pressing block 560; Specifically, in the initial state, due to the elastic force of the first spring 580, the telescopic rod 550 is fully extended from the sleeve 540, and the distance between the first pressing block 560 and the sleeve 540 is the largest; when the lifting platform 420 moves downward, the first pressing block 560 first contacts the wire 820, and the first pressing blocks 560 on both sides of the puncture needle 520 symmetrically press and fix the two sides of the wire 820 to ensure that the wire 820 is directly below the corresponding puncture needle 520; and as the height of the lifting platform 420 increases, the first pressing block 560 moves downward, and the first pressing block 560 moves downward, and the first pressing block 560 moves upward ... As the telescopic rod 550 is gradually lowered, the telescopic rod 550 is also gradually retracted into the sleeve 540, so that the first spring 580 is gradually compressed, thereby gradually increasing the elastic force of the first spring 580 on the first pressure block 560, and then gradually increasing the vertical pressing force of the first pressure block 560 on the wire 820, which can effectively improve the pressing and fixing effect on the wire 820; in the process of the telescopic rod 550 gradually retracting into the sleeve 540, the puncture needle 520 also gradually approaches the wire 820 directly below and punctures the wire 820 to extract electricity.

[0026] It should be noted that, in the initial state, the height of the first pressing block 560 is lower than the puncture needle 520; in this way, the first pressing block 560 can be ensured to contact the wire 820 before the puncture needle 520 penetrates the wire 820, so as to achieve the effect of pressing and fixing the wire 820 before puncturing.

[0027] Furthermore, considering that after the puncture needle 520 is inserted into the wire 820, the contact area between the puncture needle 520 and the internal battery of the wire 820 is limited, when the current passes through the contact point between the puncture needle 520 and the wire 820, the local current density increases, the contact resistance increases, and the heat accumulation causes overheating. In addition, the insufficient contact area will make the contact between the puncture needle 520 and the wire 820 unstable, which is easy to cause the electrical signal to be interrupted or fluctuate. To do this, see Figure 5 and Figure 6 The upper end of the puncture needle 520 is integrally provided with a detachable slice 530, the detachable slice 530 is electrically connected to the puncture needle 520, and the extending direction of the detachable slice 530 is consistent with the extending direction of the wire 820; Specifically, after the puncture needle 520 penetrates the wire 820, as the puncture depth of the puncture needle 520 increases, the demolition slice 530 gradually cuts into the wire 820, thereby cutting and demolishing the insulating surface of the wire 820, until the demolition slice 530 is also embedded in the battery cell of the wire 820. Since the surface area of ​​the demolition slice 530 is large, the electrical contact area with the battery cell can be greatly increased, effectively reducing resistance and fluctuation.

[0028] In further embodiments, see Figure 7 and Figure 8 The pulling member 600 includes a mounting plate 610, and a plurality of second pressing blocks 620 adapted to the corresponding second positioning grooves 340 are arranged on the mounting plate 610; The mounting plate 610 is symmetrically provided with latches 630 on both sides, and the slide table 320 is provided with a socket (not shown in the figure) adapted to the latches 630; Specifically, in the initial state, the mounting plate 610 is located directly above the second wire supporting plate 330, and the pin 630 corresponds to the corresponding socket. When the mounting plate 610 follows the lifting platform 420 downward, the second pressure block 620 enters the corresponding second positioning groove 340, thereby pressing the corresponding wire 820 to facilitate the subsequent horizontal traction and pulling of the wire 820; at the same time, the pin 630 is inserted into the corresponding socket, thereby realizing the connection between the mounting plate 610 and the slide 320, so that the slide 320 can be driven to move horizontally synchronously when the mounting plate 610 moves horizontally laterally.

[0029] For further information, see Figure 7 and Figure 8 , further comprising a transmission member 700, the transmission member 700 comprising an L-shaped bracket 710, the L-shaped bracket 710 being provided with vertical slide grooves 720 and horizontal slide grooves 740 distributed vertically, the lifting platform 420 being fixed with a vertical slider 730 slidably connected to the vertical slide groove 720, the mounting plate 610 being fixed with a horizontal slider 750 slidably connected to the horizontal slide groove 740, a connecting rod 760 being hinged between the vertical slider 730 and the horizontal slider 750; a guide rod 770 being fixed in the horizontal slide groove 740, the guide rod 770 being movably sleeved with a second spring 780 abutting against the horizontal slider 750; Specifically, see Fig. 9 In the initial state, the piercing power-collecting member 500 and the pulling member 600 are in a suspended state, at which time the piercing power-collecting member 500 is located directly above the fixed platform 210, and the pulling member 600 is located directly above the sliding platform 320; See also Fig.10, the lifting platform 420 moves downward, and the first pressing block 560 also contacts the fixed wire supporting assembly 200 to achieve compression of the wire 820 on the first wire supporting plate 220; at the same time, the pulling member 600 contacts the movable wire supporting assembly 300 to achieve compression of the wire 820 on the second wire supporting plate 330; See also Fig.11 , the lifting platform 420 continues to move downward, the vertical slider 730 slides down along the vertical slide groove 720, and under the transmission of the connecting rod 760, drives the horizontal slider 750 to slide horizontally along the horizontal slide groove 740, so as to drive the mounting plate 610 to drive the slide 320 to gradually move away from the fixed platform 210 in the horizontal direction, so as to achieve the pulling and pulling of the wire 820, until the wire 820 is tightened and straightened, and then the puncture needle 520 punctures the wire 820 to extract electricity; After the puncture and power extraction is completed, the lifting platform 420 moves upward and resets, driving the puncture and power extraction component 500 to move upward synchronously. At the same time, under the elastic force of the second spring 780, the transverse slider 750 slides horizontally along the transverse slide groove 740 and resets, driving the mounting plate 610 and the slide 320 to slide and reset, and then the mounting plate 610 separates from the slide 320 and rises to the initial position.

[0030] The specific implementation methods of this embodiment are described above, but this embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Ordinary technicians in this field can also make many forms inspired by this embodiment, all of which are within the protection of this embodiment.

Claims

1. A low-voltage line puncture power extraction device, characterized in that: include: A base (100) comprising a base (110) and a top plate (120) fixed above the base (110); A fixed wire supporting assembly (200) fixedly disposed on the base (110) and used to support an end of a wire (820) in the low-voltage line assembly (800) close to the connection terminal (810); A movable wire supporting assembly (300) is horizontally movably disposed on the base (110) and is used to support an end of a wire (820) in the low-voltage line assembly (800) away from the connection terminal (810); A plurality of piercing and power extraction components (500) are provided and are distributed directly above the fixed wire supporting component (200) in a manner that allows them to be lifted and lowered, and are used to pierce the wire (820) and extract power; A lifting member (400) is disposed on the top plate (120) and is used to drive the piercing power extraction member (500); The pulling member (600) is movably disposed at the output end of the lifting member (400) and can move horizontally relative to the piercing power extraction member (500), and is used to pull and stretch the wire (820) in the movable wire supporting assembly (300).

2. A low-voltage line puncture power extraction device according to claim 1, characterized in that: The fixed wire supporting assembly (200) comprises a fixed platform (210) fixed on a base (110), a first wire supporting plate (220) being provided on an upper end surface of the fixed platform (210), and a plurality of first positioning grooves (230) adapted to the wires (820) being provided on the first wire supporting plate (220).

3. A low-voltage line puncture power extraction device according to claim 1, characterized in that: The movable wire supporting assembly (300) comprises a slide rail (310) fixed on a base (110) and a slide table (320) slidably mounted on the slide rail (310); a second wire supporting plate (330) is provided on an upper end surface of the slide table (320); and a plurality of second positioning grooves (340) adapted to the wires (820) are provided on the second wire supporting plate (330).

4. A low-voltage line puncture power extraction device according to claim 3, characterized in that: The lifting member (400) comprises a lifting cylinder (410) fixed on the top plate (120); a lifting platform (420) is installed on the protruding end of the lifting cylinder (410); the piercing power extraction member (500) is fixedly arranged on the lower end surface of the lifting platform (420); and the pulling member (600) is movably arranged below the lifting platform (420) and can move horizontally relative to the lifting platform (420).

5. A low-voltage line puncture power extraction device according to claim 4, characterized in that: The puncture power extraction component (500) comprises a power extraction block (510) fixed on a lifting platform (420), and a puncture needle (520) adapted to the wire (820) is electrically connected to the lower end of the power extraction block (510).

6. A low-voltage line puncture power extraction device according to claim 5, characterized in that: The piercing power extraction component (500) further comprises a sleeve (540) arranged on the power extraction block (510), telescopic rods (550) are symmetrically and movably arranged on both sides of the sleeve (540), a first pressing block (560) is installed at the lower end of the telescopic rod (550), and an arc surface (570) adapted to the outer contour of the wire (820) is arranged at the bottom of the first pressing block (560); a first spring (580) is movably sleeved on the telescopic rod (550), and two ends of the first spring (580) are respectively in contact with the sleeve (540) and the first pressing block (560).

7. A low-voltage line puncture power extraction device according to claim 6, characterized in that: In the initial state, the height of the first pressing block (560) is lower than the puncture needle (520).

8. A low-voltage line puncture power extraction device according to claim 5, characterized in that: The upper end of the puncture needle (520) is integrally provided with a detachable section (530), the detachable section (530) is electrically connected to the puncture needle (520), and the extension direction of the detachable section (530) is consistent with the extension direction of the lead wire (820).

9. A low-voltage line puncture power extraction device according to claim 4, characterized in that: The pulling member (600) comprises a mounting plate (610), and a plurality of second pressing blocks (620) adapted to the corresponding second positioning grooves (340) are arranged on the mounting plate (610); Pins (630) are symmetrically arranged on both sides of the mounting plate (610), and sockets adapted to the pins (630) are provided on the slide table (320).

10. A low-voltage line puncture power extraction device according to claim 9, characterized in that: It also includes a transmission member (700), the transmission member (700) including an L-shaped bracket (710), the L-shaped bracket (710) being provided with vertical sliding grooves (720) and horizontal sliding grooves (740) distributed vertically; A vertical slider (730) slidably connected to the vertical slide groove (720) is fixed on the lifting platform (420), a transverse slider (750) slidably connected to the transverse slide groove (740) is fixed on the mounting plate (610), and a connecting rod (760) is hinged between the vertical slider (730) and the transverse slider (750); A guide rod (770) is fixed in the transverse sliding groove (740), and a second spring (780) is movably sleeved on the guide rod (770) and abuts against the transverse sliding block (750).

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