Rapid clamping device for busbar electricity taking

Abstract

The invention relates to the technical field of busbar electricity taking, in particular to a rapid clamping device for busbar electricity taking. The device comprises a fixed conducting rod, a movable conducting rod, a clamping mechanism, a sliding spring and a cable quick connector, a connecting rod fixing seat is arranged at the top of the fixed conducting rod; the movable conducting rod is sleeved in the fixed conducting rod and axially moves, and the top is vertically connected with the sliding connecting rod; the clamping mechanism comprises two symmetrical clamping units and two connecting rods; each unit comprises two parallel clamping connecting rods and a busbar clamping block, one ends of the clamping connecting rods are hinged to the same side of the connecting rod fixing seat, and the other ends of the clamping connecting rods are hinged to the busbar clamping block; one end of the connecting rod is hinged to the end part of the sliding connecting rod, and the other end is hinged to the rod body of the clamping connecting rod on the same side to form a parallelogram mechanism to restrain vertical movement of the busbar clamping block; the two ends of the sliding spring abut against the inner wall of the movable conducting rod and the bottom face of the sliding connecting rod. According to the invention, through the miniaturization design and the self-adaptive structure, the technical problem of small-space busbar electricity taking is solved.

Description

Technical Field

[0001] This invention relates to the field of busbar power extraction technology, and more specifically to a quick clamping device for busbar power extraction. Background Technology

[0002] With the accelerated upgrading and transformation of urban and rural power grids, electricity users have higher requirements for power supply reliability. Traditional power outage maintenance methods require interrupting power supply to users, which can easily cause significant economic losses, especially in high-sensitive load scenarios such as medical facilities and data centers. Uninterrupted power bypass systems can effectively solve this problem. By constructing temporary power lines, maintenance and emergency repairs can be carried out without interrupting power supply to users, greatly improving power supply reliability and reducing outage time and impact on users. In this system, the generator vehicle needs to quickly establish an electrical connection with the distribution cabinet busbar using parallel busbar clamps; its performance directly affects operational efficiency and safety.

[0003] However, existing parallel busbar clamps have the following problems: 1. Poor space compatibility: Conventional clamps are generally too large, while the low-current, low-voltage distribution cabinets (such as the GGD type) widely used in rural areas have small horizontal installation space due to their small loads; there are also issues with the busbar spacing being too tight, and the distance between the clamp body and the side wall of the cabinet being less than the safe clearance, resulting in physical interference that prevents installation.

[0004] 2. Lack of adaptability: Traditional clamps are only compatible with a single type of busbar, but there are many non-standard busbars in actual scenarios; the clamping stroke needs to be manually adjusted during installation, which increases the operation time in narrow spaces and seriously affects the timeliness of bypass operations.

[0005] Therefore, there is an urgent need for a quick clamping device for power extraction from the busbar to solve the above problems. Summary of the Invention

[0006] This invention addresses the technical problems existing in the prior art by providing a quick clamping device for busbar power extraction. Through miniaturization and adaptive structure, it solves the technical problem of busbar power extraction in small spaces.

[0007] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A quick clamping device for power extraction from a busbar includes: a fixed conductive rod, a movable conductive rod, a clamping mechanism, a sliding spring, and a cable quick connector; A connecting rod fixing seat is installed on the top of the fixed conductive rod; The movable conductive rod is coaxially sleeved inside the fixed conductive rod and can move axially. A sliding connecting rod is installed on its top, and the sliding connecting rod is perpendicularly connected to the movable conductive rod. The clamping mechanism includes two clamping units and two connecting rods; The two clamping units are symmetrically arranged on the left and right sides of the connecting rod fixing seat; each clamping unit includes: two parallel clamping connecting rods and a busbar clamping block, one end of each clamping connecting rod is hinged to the same side of the connecting rod fixing seat, and the other end is hinged to the busbar clamping block; Two connecting rods are symmetrically arranged at the left and right ends of the sliding link. One end of each connecting rod is hinged to the end of the sliding link, and the other end is hinged to the body of the clamping link on the same side and close to each other. The sliding spring is disposed in the axial cavity inside the movable conductive rod, with its two ends abutting against the inner wall of the movable conductive rod and the bottom surface of the sliding connecting rod, respectively, so that the sliding connecting rod obtains an axial thrust toward the top of the fixed conductive rod; The cable quick connector is located at the tail of the fixed conductive rod; The connecting rod fixing seat, the two clamping connecting rods on the same side, and the busbar clamping block form a parallelogram mechanism, so that the movement direction of the busbar clamping block is constrained by the vertical direction; the axial movement of the moving conductive rod drives the connecting rod through the sliding connecting rod, thereby pushing the clamping connecting rod to rotate and realize the clamping of the busbar clamping block.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, it also includes an overload protection module, which comprises: The ejector rod has its front end connected to the tail end of the movable conductive rod. The protective slider is coaxially sleeved on the optical axis section of the tail of the ejector rod, and the tail end is machined with a chamfered meshing tooth surface. A protective spring is sleeved on the optical shaft section at the tail of the ejector rod, with one end abutting against the rod body and the other end abutting against the front end of the protective slider. The protective connecting shaft has a corresponding tooth surface at its front end that matches the beveled meshing tooth surface of the protective slider; it can be separably engaged with the protective slider. Wherein: the protective spring is in a pre-compressed state, pushing the protective slider to maintain engagement with the tooth surface of the protective connecting shaft. When the rotational torque of the protective connecting shaft exceeds the threshold, the axial component force generated by the beveled meshing tooth surface causes the protective slider to compress the protective spring and move backward to disengage from engagement.

[0010] Furthermore, a first bearing is sleeved on the ejector rod, and the rod is rotatably mounted on the inner wall of the fixed conductive rod via the first bearing. A second bearing is sleeved on the protective connecting shaft, and the shaft is rotatably mounted on the inner wall of the fixed conductive rod via the second bearing.

[0011] Furthermore, the ejector rod has an annular shoulder machined on its body, one end of the protective spring abuts against the annular shoulder, and the other end abuts against the front end of the protective slider.

[0012] Furthermore, the inner wall of the fixed conductive rod is provided with an annular mounting groove, and a watch strap finger is embedded in the annular mounting groove; The movable conductive rod is coaxially inserted into the fixed conductive rod, and its outer wall maintains an interference fit with the watch strap fingers. A top fixing block is installed on the top of the fixed conductive rod, which axially constrains the movable conductive rod within the fixed conductive rod.

[0013] Furthermore, the head of the movable conductive rod is fitted with a front cover.

[0014] Furthermore, the cable quick connector includes: The rotating conductive block has two mounting holes, one of which has a watch strap finger that is mounted on the tail of the fixed conductive rod. The connector fitting has a watch strap contact finger inside, which is fixedly connected to another mounting hole at the bottom of the rotating conductive block; The connector housing covers the connector fittings and has a cable plug-in port at its tail.

[0015] Furthermore, the axis of the connector hardware forms an obtuse angle with the axis of the fixed conductive rod.

[0016] Furthermore, a protective shell for the rotating conductive block is provided on the outside of the conductive block; The tail end of the fixed conductive rod is fitted with a spacer sleeve, which is fixed to the tail end of the fixed conductive rod by the tail fixing block.

[0017] Furthermore, it also includes a clamping block cover plate, an insulating protective sleeve, and a connecting rod protective cover; The clamping block cover is detachably installed on the outside of the busbar clamping block; The insulating protective tube is sleeved on the outer wall of the fixed conductive rod; The connecting rod protective cover is fitted over the fixed conductive rod and covers the area of ​​the connecting rod fixing seat.

[0018] The beneficial effects of this invention are: 1. In this embodiment, the busbar clamping block is constrained by a parallelogram linkage mechanism, so that it moves only in the vertical direction, ensuring that the position of the clamping surface is constant for busbars of different widths, and the clamping part will not change due to different busbar widths.

[0019] 2. In this embodiment, the sliding spring is built into the top hole of the movable conductive rod, providing axial elastic thrust. When the busbar thickness changes, the spring compression adjusts adaptively, driving the top contact finger to maintain contact pressure with the busbar surface, thus achieving a reliable electrical connection.

[0020] 3. In this embodiment of the overload protection module, when the socket wrench drives the protective connecting shaft to rotate in the forward direction, the helical meshing tooth surface pushes the protective slider to drive the ejector rod. When the clamping torque exceeds the limit, the axial force generated by the helical teeth compresses the protective spring, causing the engagement to disengage and protecting the front end mechanism.

[0021] 4. In this embodiment, the connector hardware of the cable quick connector forms an obtuse angle with the axis of the device body to avoid interference from foreign objects below, preventing the quick-connect cable from being unable to connect properly due to foreign objects below. The cable connects to the connector hardware through the strap contact fingers, enabling 360° rotation for conductivity and supporting cable insertion and removal at any angle. Attached Figure Description

[0022] Figure 1 This is a partial internal structure diagram of the quick clamping device for power extraction from the busbar according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the quick clamping device for power extraction from the busbar according to an embodiment of the present invention; Figure 3 This is an exploded view of the quick-clamping device for power extraction from the busbar according to an embodiment of the present invention without the installation of the cable quick connector; Figure 4 This is a partial internal structure diagram of the quick clamping device for power extraction from the busbar according to an embodiment of the present invention.

[0023] The attached diagram lists the components represented by each number as follows: 1-Conductive block protective shell, 2-Insulating protective tube, 3-Connecting rod protective cover, 4-Pin, 5-Clamping connecting rod, 6-Clamping block cover plate, 7-Busbar clamping block, 8-Connecting rod, 9-Connecting rod fixing seat, 10-Sliding connecting rod, 11-Top fixing block, 12-Top contact finger, 13-Front cover, 14-Sliding spring, 15-Moving conductive rod, 16-Fixed conductive rod, 17-First bearing, 18-Ejecting rod, 19-Protective spring, 20-Protective slider, 21-Protective connecting shaft, 22-Second bearing, 23-Anti-touch cover, 24-Tail seal, 25-Tail fixing block, 26-Spacer, 27-Watch strap contact finger, 28-Rotating conductive block, 29-Connector shell, 30-Connector hardware, 31-Protective cover, 32-Base plate fixing block. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0026] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use the invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the invention can be made without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the invention with unnecessary detail. Therefore, the invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0027] Example A quick-clamping device for power extraction from a busbar, such as Figure 1-3 As shown, it includes: a fixed conductive rod 16, a movable conductive rod 15, a clamping mechanism, a sliding spring 14, and a cable quick connector; A connecting rod fixing seat 9 is installed on the top of the fixed conductive rod 16; The movable conductive rod 15 is coaxially sleeved inside the fixed conductive rod 16 and can move axially. A sliding connecting rod 10 is installed on its top, and the sliding connecting rod 10 is perpendicularly connected to the movable conductive rod 15. The clamping mechanism includes two clamping units and two connecting rods 8; Two clamping units are symmetrically arranged on the left and right sides of the connecting rod fixing seat 9; each clamping unit includes: two parallel clamping connecting rods 5 and a busbar clamping block 7, one end of each clamping connecting rod 5 is hinged to the same side of the connecting rod fixing seat 9, and the other end is hinged to the busbar clamping block 7. Two connecting rods 8 are symmetrically arranged at the left and right ends of the sliding connecting rod 10. One end of each connecting rod 8 is hinged to the end of the sliding connecting rod 10, and the other end is hinged to the body of the clamping connecting rod 5 on the same side and close to each other. The sliding spring 14 is disposed in the axial cavity inside the movable conductive rod 15, and its two ends abut against the inner wall of the movable conductive rod 15 and the bottom surface of the sliding connecting rod 10 respectively, so that the sliding connecting rod 10 obtains an axial thrust toward the top of the fixed conductive rod 16. The cable quick connector is located at the tail of the fixed conductive rod 16; The connecting rod fixing seat 9, the two clamping connecting rods 5 on the same side, and the busbar clamping block 7 form a parallelogram mechanism, so that the movement direction of the busbar clamping block 7 is constrained by the vertical direction; the axial movement of the moving conductive rod 15 drives the connecting rod 8 through the sliding connecting rod 10, thereby pushing the clamping connecting rod 5 to rotate and realize the clamping of the busbar clamping block 7.

[0028] In this embodiment, in each clamping unit, one end of each clamping link 5 is hinged to the same side of the link fixing seat 9 via a pin 4, and the other end is hinged to the mother bar clamping block 7 via a pin 4; the two connecting rods 8 are symmetrically arranged at the left and right ends of the sliding link 10, and one end of each connecting rod 8 is hinged to the end of the sliding link 10 via a pin 4, and the other end is hinged to the rod body of the clamping link 5 on the same side and adjacent to each other via a pin 4.

[0029] It should be noted that a rectangular guide groove is provided at the top of the movable conductive rod 15, and the sliding connecting rod 10 passes through the rectangular guide groove and is installed at the top of the movable conductive rod 15.

[0030] In this embodiment, the parallelogram linkage mechanism constrains the busbar clamping block 7 to move only in a straight line along the clamping direction, ensuring that busbars of different widths can be effectively clamped and avoiding clamping failure due to changes in busbar width. At the same time, the sliding spring 14 provides adaptive pressure: it provides the required thrust for clamping and can automatically adjust to adapt to changes in busbar size, protecting the busbar and clamping device from deformation.

[0031] This embodiment adopts a miniaturized design, specifically in that the fixed conductive rod 16 and the movable conductive rod 15 adopt a coaxial nested structure, which compresses the overall axial length of the device compared to traditional clamps; the hinge point of the parallelogram linkage mechanism is moved inward, and in conjunction with the busbar clamping block 7 with reduced thickness, it can be adapted to the installation requirements of small distribution cabinets.

[0032] In a preferred embodiment, such as Figure 3 As shown, it also includes an overload protection module, which comprises: The ejector rod 18 has its front end connected to the tail end of the movable conductive rod 15; The protective slider 20 is coaxially sleeved on the optical axis section of the tail of the ejector rod 18, and the tail end is machined with a chamfered meshing tooth surface. The protective spring 19 is sleeved on the optical shaft section at the tail of the ejector rod 18, with one end abutting against the rod body of the ejector rod 18 and the other end abutting against the front end of the protective slider 20. The protective connecting shaft 21 has a corresponding tooth surface at its front end that matches the beveled meshing tooth surface of the protective slider 20; it can be separably meshed with the protective slider 20. Wherein: the protective spring 19 is in a pre-compressed state, pushing the protective slider 20 to maintain engagement with the tooth surface of the protective connecting shaft 21. When the rotational torque of the protective connecting shaft 21 exceeds the threshold, the axial component force generated by the beveled meshing tooth surface causes the protective slider 20 to compress the protective spring 19 and move backward to disengage from engagement.

[0033] In this embodiment, the angled meshing tooth surface and the protective spring 19 constitute an overload protection mechanism. When tightened, the overload protection mechanism automatically disengages, effectively preventing damage to the clamping mechanism.

[0034] In a preferred embodiment, such as Figure 3 As shown, a first bearing 17 is sleeved on the ejector rod 18, and it is rotatably mounted on the inner wall of the fixed conductive rod 16 through the first bearing 17. A second bearing 22 is sleeved on the protective connecting shaft 21, and is rotatably mounted on the inner wall of the fixed conductive rod 16 via the second bearing 22.

[0035] In this embodiment, the inner wall of the fixed conductive rod 16 is provided with two mounting holes, which correspond to the first bearing 17 and the second bearing 22 respectively, and are used to install the first bearing 17 and the second bearing 22. The first bearing 17 and the second bearing 22 respectively support the ejector rod 18 and the protective connecting shaft 21, ensuring smooth rotation and reducing friction loss.

[0036] In a preferred embodiment, the ejector rod 18 has an annular shoulder machined on its shaft, one end of the protective spring 19 abuts against the annular shoulder, and the other end abuts against the front end of the protective slider 20.

[0037] In this embodiment, the annular shoulder design is used to limit the compression stroke of the protection spring 19, ensuring the stability of the overload protection response.

[0038] Furthermore, the inner wall of the fixed conductive rod 16 is provided with an annular mounting groove, and the watch strap touch finger 27 is embedded in the annular mounting groove; The movable conductive rod 15 is coaxially inserted into the fixed conductive rod 16, and its outer wall maintains an interference contact with the watch strap finger 27. A top fixing block 11 is installed on the top of the fixed conductive rod 16, and the top fixing block 11 axially constrains the movable conductive rod 15 within the fixed conductive rod 16.

[0039] In this embodiment, the watch strap contact finger 27 is embedded in the annular mounting groove of the fixed conductive rod 16; the top fixing block 11 is threaded and locked in place. This prevents the movable conductive rod 15 from dislodging from the fixed conductive rod 16 during clamping or releasing, ensuring the stability of the mechanism's movement. The movable conductive rod 15 is fitted with a front cover 13 at its head. The front cover 13 protects the head components of the movable conductive rod 15 from mechanical damage and electrical exposure risks.

[0040] In a preferred embodiment, such as Figure 2-4 The cable quick connector shown includes: The rotating conductive block 28 has two mounting holes, one of which has a watch strap finger 27 installed at the tail of the fixed conductive rod 16. The connector hardware 30 has a watch strap contact finger 27 inside, which is fixedly connected to another mounting hole at the bottom of the rotating conductive block 28.

[0041] The connector housing covers the connector fitting 30, and has a cable plug-in port at its tail.

[0042] The axis of the connector hardware 30 forms an obtuse angle with the axis of the fixed conductive rod 16.

[0043] In this embodiment, the obtuse angle optimizes the cable routing, effectively improving adaptability to operation in confined spaces. A protective cap 31 is provided at the end of the connector hardware 30 for insulation protection.

[0044] In a preferred embodiment, the rotating conductive block 28 is covered with a conductive block protective shell 1; The fixed conductive rod 16 is fitted with a spacer 26 at its tail end, and the spacer 26 is fixed to the tail end of the fixed conductive rod 16 by the tail fixing block 25.

[0045] In this embodiment, the conductive block protective shell 1 covers the rotating conductive block 28; the spacer 26 is pressed and fixed by the tail fixing block 25. The spacer 26 serves to separate the conductive block, the conductive block protective shell 1 provides insulation protection, and the tail fixing block 25 ensures a stable installation.

[0046] In a preferred embodiment, it also includes a clamping block cover plate 6, two sets of insulating protective tubes, and a connecting rod protective cover 3; The clamping block cover plate 6 is detachably installed on the outside of the busbar clamping block 7; The insulating protective tube 2 is sleeved on the outer wall of the fixed conductive rod 16; The connecting rod protective cover 3 is sleeved on the outside of the fixed conductive rod 16 and covers the area of ​​the connecting rod fixing seat 9.

[0047] In this embodiment, the clamping block cover plate 6 is bolted to the busbar clamping block 7, and the insulating protective tube 2 and the connecting rod protective cover 3 are sleeved and fixed to the conductive rod 16. The clamping block cover plate 6, the insulating protective tube 2, and the connecting rod protective cover 3 are used to isolate external conductive risks.

[0048] The overall installation process in this embodiment is as follows: Step 1: Fix the conductive rod 16 base assembly The connecting rod fixing seat 9 is fixedly installed at the preset position on the top of the fixed conductive rod 16. Then, the top fixing block 11 is screwed into the threaded section on the top of the fixed conductive rod 16 and locked to form an axial constraint reference for the moving conductive rod 15.

[0049] Step 2: Installation of the movable conductive rod 15 and the top contact finger 12 The front cover 13 is inserted into the head position of the movable conductive rod 15 and fixed with screws. Then, the sliding spring 14 is placed into the axial cavity at the top of the movable conductive rod 15. Next, the sliding link 10 is inserted into the rectangular guide groove at the head of the movable conductive rod 15. The sliding link 10 is perpendicular to the movable conductive rod 15, and the top contact finger 12 is installed on the top plane of the movable conductive rod 15.

[0050] Step 3: Assemble the clamping mechanism Insert the pre-assembled movable conductive rod 15 coaxially into the inner cavity of the fixed conductive rod 16; hinge one end of the clamping connecting rod 5 to the mounting hole on the side wall of the connecting rod fixing seat 9 through the pin 4, and hinge the other end to the busbar clamping block 7; then use the pin 4 to hinge both ends of the connecting rod 8 to the end of the sliding connecting rod 10 and the body of the clamping connecting rod 5 respectively; finally, use bolts to fasten the clamping block cover plate 6 to the outside of the busbar clamping block 7.

[0051] Step 4: Overload protection module assembly Press the first bearing 17 into the mounting hole on the inner wall of the fixed conductive rod 16; pass the ejector rod 18 through the first bearing 17 so that its front end abuts against the tail end of the movable conductive rod 15; sequentially insert the protective spring 19 and the protective slider 20 so that both ends of the protective spring 19 abut against the annular shoulder of the ejector rod 18 and the front end of the protective slider 20 respectively; finally, push the protective connecting shaft 21 with the second bearing 22 into the mounting hole on the inner wall of the fixed conductive rod 16 so that its front helical teeth mesh with the tail helical teeth of the protective slider 20.

[0052] Step 5: Assemble the cable quick connector Insert the connector hardware 30 into the bottom of the rotating conductive block 28 and fix it in place by the base plate fixing block 32; install the connector housing at the tail of the connector hardware 30 to form a cable plug-in port.

[0053] Step 6: Insulation Protection and Final Assembly Insert the insulating protective tube 2 into the outer wall of the fixed conductive rod 16, and install the connecting rod protective cover 3 to cover the area of ​​the connecting rod fixing seat 9; first install the watch strap contact finger 27 into the inner groove of the rotating conductive block 28, then put the conductive protective shell 1 onto the outside of the rotating conductive block 28, then put the rotating conductive block 28 onto the tail of the fixed conductive rod 16, insert the spacer 26 and lock it through the tail fixing block 25; finally, seal the end with the tail cap 24.

[0054] The working process of this embodiment is as follows: Clamping phase: The socket wrench rotates clockwise to protect the connecting shaft 21, driving the protective slider 20 to rotate the ejector rod 18. The ejector rod 18 pushes the moving conductive rod 15 forward, and the sliding connecting rod 10 follows suit, pushing the connecting rod 8 forward, forcing the clamping connecting rod 5 to rotate and retract the busbar clamping block 7 inward. When the busbar clamping block 7 contacts the busbar sidewall, the moving conductive rod 15 continues to move forward, compressing the sliding spring 14, until the top contact finger 12 presses against the busbar surface. If the torque is too large, the protective slider 20 compresses the protective spring 19 and moves backward to disengage, terminating the force transmission.

[0055] Release phase: Rotating the protective connecting shaft 21 counterclockwise moves the conductive rod 15 backward. Initially, the sliding spring 14 resets, subsequently causing the sliding connecting rod 10 to move backward. The connecting rod 8 pulls the clamping connecting rod 5 outward, causing the busbar clamping block 7 to disengage from the busbar. Overload protection is not triggered during reverse rotation.

[0056] Current path: The current is conducted from the surface of the busbar through the top contact finger 12 to the moving conductive rod 15, then jumps to the fixed conductive rod 16 through the watch strap contact finger 27, and then is guided to the rotating conductive block 28 through the tail watch strap contact finger 27, and finally output to the external cable through the connector hardware 30. The entire process avoids mechanical transmission components such as overload protection modules, ensuring stable power transmission.

[0057] While embodiments or examples of this disclosure have been described with reference to the accompanying drawings, it should be understood that the methods, systems, and devices described above are merely exemplary embodiments or examples, and the scope of the invention is not limited by these embodiments or examples, but only by the granted claims and their equivalents. Various elements in the embodiments or examples may be omitted or replaced by their equivalents. Furthermore, the steps may be performed in a different order than that described in this disclosure. Further, various elements in the embodiments or examples may be combined in various ways. Importantly, as the technology evolves, many elements described herein can be replaced by equivalents that appear after this disclosure.

Claims

1. A quick clamping device for power extraction from a busbar, characterized in that, include: Fixed conductive rod, movable conductive rod, clamping mechanism, sliding spring and cable quick connector; A connecting rod fixing seat is installed on the top of the fixed conductive rod; The movable conductive rod is coaxially sleeved inside the fixed conductive rod and can move axially. A sliding connecting rod is installed on its top, and the sliding connecting rod is perpendicularly connected to the movable conductive rod. The clamping mechanism includes two clamping units and two connecting rods; The two clamping units are symmetrically arranged on the left and right sides of the connecting rod fixing seat; each clamping unit includes: two parallel clamping connecting rods and a busbar clamping block, one end of each clamping connecting rod is hinged to the same side of the connecting rod fixing seat, and the other end is hinged to the busbar clamping block; Two connecting rods are symmetrically arranged at the left and right ends of the sliding link. One end of each connecting rod is hinged to the end of the sliding link, and the other end is hinged to the body of the clamping link on the same side and close to each other. The sliding spring is disposed in the axial cavity inside the movable conductive rod, with its two ends abutting against the inner wall of the movable conductive rod and the bottom surface of the sliding connecting rod, respectively, so that the sliding connecting rod obtains an axial thrust toward the top of the fixed conductive rod; The cable quick connector is located at the tail of the fixed conductive rod; The connecting rod fixing seat, the two clamping connecting rods on the same side, and the busbar clamping block form a parallelogram mechanism, so that the movement direction of the busbar clamping block is constrained by the vertical direction; the axial movement of the moving conductive rod drives the connecting rod through the sliding connecting rod, thereby pushing the clamping connecting rod to rotate and realize the clamping of the busbar clamping block.

2. The quick clamping device for power extraction from the busbar according to claim 1, characterized in that, It also includes an overload protection module, which comprises: The ejector rod has its front end connected to the tail end of the movable conductive rod. The protective slider is coaxially sleeved on the optical axis section of the tail of the ejector rod, and the tail end is machined with a chamfered meshing tooth surface. A protective spring is sleeved on the optical shaft section at the tail of the ejector rod, with one end abutting against the rod body and the other end abutting against the front end of the protective slider. The protective connecting shaft has a corresponding tooth surface at its front end that matches the beveled meshing tooth surface of the protective slider; it can be separably engaged with the protective slider. Wherein: the protective spring is in a pre-compressed state, pushing the protective slider to maintain engagement with the tooth surface of the protective connecting shaft. When the rotational torque of the protective connecting shaft exceeds the threshold, the axial component force generated by the beveled meshing tooth surface causes the protective slider to compress the protective spring and move backward to disengage from engagement.

3. The quick clamping device for power extraction from the busbar according to claim 2, characterized in that, The ejector rod is fitted with a first bearing, which is rotatably mounted on the inner wall of the fixed conductive rod via the first bearing. A second bearing is sleeved on the protective connecting shaft, and the shaft is rotatably mounted on the inner wall of the fixed conductive rod via the second bearing.

4. The quick clamping device for power extraction from the busbar according to claim 2, characterized in that, The ejector rod has an annular shoulder machined on its shaft. One end of the protective spring abuts against the annular shoulder, and the other end abuts against the front end of the protective slider.

5. The quick clamping device for power extraction from the busbar according to claim 1, characterized in that, The inner wall of the fixed conductive rod is provided with an annular mounting groove, and a watch strap finger is embedded in the annular mounting groove; The movable conductive rod is coaxially inserted into the fixed conductive rod, and its outer wall maintains an interference fit with the watch strap fingers. A top fixing block is installed on the top of the fixed conductive rod, which axially constrains the movable conductive rod within the fixed conductive rod.

6. The quick-clamping device for power extraction from the busbar according to claim 5, characterized in that, The head of the movable conductive rod is fitted with a front cover.

7. The quick clamping device for power extraction from the busbar according to claim 1, characterized in that, The cable quick connector includes: The rotating conductive block has two mounting holes, one of which has a watch strap finger that is mounted on the tail of the fixed conductive rod. The connector fitting has a watch strap contact finger inside, which is fixedly connected to another mounting hole at the bottom of the rotating conductive block; The connector housing covers the connector fittings and has a cable plug-in port at its tail.

8. The quick clamping device for power extraction from the busbar according to claim 7, characterized in that, The axis of the connector hardware forms an obtuse angle with the axis of the fixed conductive rod.

9. The quick clamping device for power extraction from the busbar according to claim 7, characterized in that: The rotating conductive block is covered with a protective shell. The tail end of the fixed conductive rod is fitted with a spacer sleeve, which is fixed to the tail end of the fixed conductive rod by the tail fixing block.

10. The quick clamping device for power extraction from the busbar according to claim 1, characterized in that: It also includes a clamping block cover, an insulating protective sleeve, and a connecting rod protective cover; The clamping block cover is detachably installed on the outside of the busbar clamping block; The insulating protective tube is sleeved on the outer wall of the fixed conductive rod; The connecting rod protective cover is fitted over the fixed conductive rod and covers the area of ​​the connecting rod fixing seat.

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