Wire terminal return rapid binding device

Abstract

The invention discloses a wire terminal return quick binding device which comprises a driving part, and the driving part comprises a mounting seat, a guide rod fixedly arranged on the mounting seat and a push rod capable of driving in the axis direction of the guide rod. And the clamping piece comprises a movable plate and a fixed plate. An operator does not need to keep the wire tensioned with one hand, only needs to place the return part of the wire into the restraining piece and rotate the push rod clockwise to complete primary clamping and positioning, and subsequently drives secondary tightening through the fastening bolt, the whole-process operation does not need complex coordination actions, the restraining piece adopts an epoxy resin insulating plate, the wire is prevented from being directly extruded by a metal part, and the wire tightening efficiency is improved. The fixed arc plate and the movable arc plate are not scratched in the binding process, the integrity of the insulating layer is thoroughly protected, the circular hole groove of the restraining piece adopts a deformable structure of the fixed arc plate and the movable arc plate, the wire restraining device is suitable for wires of different specifications, and the requirements of multiple scenes can be met without replacing the device.

Description

Technical Field

[0001] This invention relates to the field of power distribution, and in particular to a quick-connecting device for conductor terminals. Background Technology

[0002] In power distribution and wiring projects, conductors need to be erected on utility poles or building exterior walls using cable trays to support and fix their direction. This involves bending the conductor terminals around the ceramic rollers on the cable trays to create an overlapping section after the bend. While maintaining the conductor's tautness, the overlapping section is then bound and secured to ensure the conductor terminals do not detach and maintain stable contact.

[0003] However, the current industry still relies mainly on traditional manual operations for binding the wire termination points, lacking professional and suitable tools. The traditional method relies on operators holding steel wire, nylon cable ties, or insulating tape to wrap and fix the wire. One hand must keep the wire taut while the other hand completes the binding action, requiring a high degree of coordination. Especially for wires with larger diameters or elasticity, the wire is prone to springing back after bending, requiring repeated adjustments to the binding position. When binding manually, the tightening force of the steel wire or cable tie depends entirely on experience. Too little force will easily lead to loose binding, while too much force will squeeze the wire insulation layer, causing damage and cracking of the insulation layer. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is that the existing wire binding technology requires high coordination and the binding force cannot be accurately controlled.

[0005] The above-mentioned technical problems are solved by the following technical solution: This invention proposes a quick-connect wire terminal return device, which includes a driving component, the driving component including a mounting base, a guide rod fixed on the mounting base, and a push rod that can be driven along the axis of the guide rod; a clamping component including a movable plate and a fixed plate, the movable plate and the fixed plate being slidably sleeved on the guide rod and arranged opposite to each other along the axis of the guide rod; and constraint components respectively disposed on the opposite inner sides of the movable plate and the fixed plate; wherein, one end of the push rod is convexly connected to the movable plate to drive the movable plate to slide relative to the fixed plate along the guide rod, so that the two sets of constraint components move closer or further apart, thereby realizing the clamping and releasing of the wire.

[0006] In a preferred embodiment of the wire terminal quick-returning tie device of the present invention: the driving component further includes a threaded hole through both sides of the upper part of the mounting base, and at least two sets of guide rods are provided and symmetrically arranged on both sides below the threaded hole. The end of the guide rod away from the mounting base is threadedly connected to a limit nut. The push rod is threaded into the threaded hole, and one end of it extends through the threaded hole to one side of the movable plate.

[0007] In a preferred embodiment of the wire terminal quick-return tying device of the present invention: the movable plate includes a rotating seat fixed on the side of the movable plate near the push rod, the surface of the rotating seat is provided with a circular hole, and a convex block is fixed on one end of the push rod near the rotating seat; The convex block is rotatably fitted into the circular hole.

[0008] In a preferred embodiment of the wire terminal quick-returning tie device of the present invention: the cross-section of the convex block is "convex" shaped, and four sets of limiting holes communicating with the circular hole are evenly opened on the outer periphery of the rotating seat along the circumferential direction. The limiting holes are threaded with limiting bolts. The end of the limiting bolt extends into the gap between the convex block and the push rod.

[0009] In a preferred embodiment of the wire terminal quick-return tying device of the present invention: the movable plate and the fixed plate have the same structure and are mirror images of each other, and the movable plate and the fixed plate are provided with mounting surfaces on their respective inner sides, and the constraint member is fixed to the mounting surface.

[0010] In a preferred embodiment of the wire terminal quick-return tying device of the present invention: the constraint member includes an insulating plate disposed on the mounting surface, and a vertical groove is provided on the side of the insulating plate facing another insulating plate, and a fixed arc plate and a movable arc plate are slidably connected in the groove along the vertical direction; The movable arc plate is located above the fixed arc plate, and the two work together to form an arc-shaped clamping surface for fitting the surface of the conductor.

[0011] In a preferred embodiment of the wire terminal quick-return tying device of the present invention: the constraint members on the movable plate and the constraint members on the fixed plate are arranged opposite to each other, and the fixed arc plate and the movable arc plate of the two sets of constraint members together form a circular hole groove for accommodating the wire.

[0012] In a preferred embodiment of the wire terminal quick-connection device of the present invention: a fastening hole is provided on the side of the insulating plate away from the other insulating plate near the four corners, extending through to its inner mounting surface, and a fastening bolt is provided in the fastening hole.

[0013] In a preferred embodiment of the wire terminal quick-return tying device of the present invention: it further includes a tightening member, which is sleeved on the fastening bolt and drivesly cooperates with the movable arc plate. The tightening member includes inclined surfaces symmetrically opened on the upper surface of the two sets of movable arc plates. The inclined surfaces are vertically aligned with the fastening bolt. A driven ring and a pushing ring are coaxially sleeved on the outside of the fastening bolt. The inner side of the pushing ring is provided with a lifting hole adapted to the external thread of the fastening bolt. A first contact surface is provided on the upper side of the driven ring, and a second contact surface is provided on the side of the pushing ring close to the driven ring. The first contact surface and the second contact surface are parallel and tightly fitted.

[0014] In a preferred embodiment of the wire terminal quick-return tying device of the present invention: a squeezing block is fixed on the side of the push ring near the movable arc plate, and the squeezing block has an inverted triangular structure; the lower two inclined surfaces of the squeezing block are parallel to and fit against the inclined surfaces of the two sets of movable arc plates respectively.

[0015] The advantages of this invention are as follows: the operator does not need to keep the wire taut with one hand; they only need to place the wire's return portion into the constraint member and rotate the push rod clockwise to complete the first-stage clamping and positioning. Subsequently, the second-stage tightening is driven by the fastening bolts. The entire operation requires no complex coordination actions. The constraint member uses an epoxy resin insulating board to avoid direct compression of the wire by metal parts and to prevent damage to the insulation layer due to excessive force. There is no scraping action during the binding process of the fixed arc plate and the movable arc plate, which completely protects the integrity of the insulation layer. The circular slot of the constraint member adopts a deformable structure of the fixed arc plate and the movable arc plate to adapt to different specifications of wires and meet the needs of multiple scenarios without changing the device. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments of the present invention will be briefly described below. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Wherein: Figure 1 A schematic diagram of the main structure of a quick-connect wire terminal return device is shown; Figure 2 A schematic diagram of the pusher component in a quick-return wire-tying device for conductor terminals is shown. Figure 3 A schematic diagram of the clamping component in a quick-connect wire terminal return device is shown. Figure 4 A partial structural schematic diagram of the fixing plate in a quick-connect wire terminal return device is shown; Figure 5 A schematic diagram of the constraint component in a quick-return wire tying device for conductor terminals is shown. Figure 6A schematic diagram of the constraint component in a quick-return wire tying device for conductor terminals is shown. Figure 7 A schematic diagram of the tightening component in a quick-return wire tying device for conductor terminals is shown. Figure 8 A diagram illustrating the clamping motion of a quick-return wire-tying device for conductor terminals is shown. Figure 9 A diagram illustrating the clamping motion of a quick-return wire-tying device for conductor terminals is shown. Detailed Implementation

[0017] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0018] The terminology used in this invention is that which is currently widely used in the art in consideration of the function of the invention; however, these terms may vary according to the intent of those skilled in the art, precedent, or new technology in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the invention. Therefore, the terms used in this specification should not be construed as simple names, but rather based on their meanings and the overall description of the invention.

[0019] Reference Figure 1-9 This embodiment provides a quick-clamping device for conductor terminals, mainly used for quick clamping and tightening of conductor terminals after bending during power construction, preventing the conductor from loosening or falling off. It includes a driving component 1, which comprises a mounting base 11, a guide rod 12 fixed on the mounting base 11, and a push rod 13 that can be driven along the axis of the guide rod 12; a clamping component 2, which includes a movable plate 21 and a fixed plate 22, both slidably sleeved on the guide rod 12 and arranged opposite to each other along the axis of the guide rod 12; and constraint components 3, which are respectively disposed on the opposite inner sides of the movable plate 21 and the fixed plate 22. One end of the push rod 13 is connected to the movable plate 21 to drive the movable plate 21 to slide relative to the fixed plate 22 along the guide rod 12, causing the two sets of constraint components 3 to move closer or further apart, thus achieving the clamping and loosening of the conductor.

[0020] The mounting base 11 is an isosceles triangular structure formed by milling. A threaded hole 14 is provided at the center of the upper vertex, penetrating both sides of the surface. The axis of the threaded hole 14 is collinear with the height of the triangular mounting base 11. Two sets of guide rod 12 mounting holes are symmetrically arranged at the two bottom corners along the axis of the threaded hole 14. The axis of the mounting holes is parallel to the bottom edge of the triangular mounting base 11.

[0021] The guide rod 12 is of a cylindrical structure, with external threads machined at both ends. One end of the guide rod 12 is fastened to the bottom corner mounting hole of the mounting seat 11 by threads, and the other end of the guide rod 12 is threadedly connected to the limit nut 216. The position of the limit nut 216 can be adjusted by rotation, which is used to limit the initial position of the fixed plate 22. The push rod 13 is of a segmented structure, with external threads machined in the middle section for realizing threaded transmission. One end is a smooth rod section, and a convex block 213 is integrally turned at the end, and the cross-section presents a "convex" shape. The other end is provided with a square joint for connecting to an external driving force source such as an electric gun or a wrench, and drives the push rod 13 to move axially along the threaded hole 14 by applying a rotational force.

[0022] Furthermore, the clamping member 2 adopts a mirror-symmetrical structure for realizing the preliminary positioning of the wire, including a movable plate 21 and a fixed plate 22, which have the same structure and are arranged in a mirror image. Guide holes are symmetrically opened on both sides of the movable plate 21 and the fixed plate 22, and the guide rods 12 are sleeved through the guide holes. The fixed plate 22 is located on the side far from the mounting seat 11 and is arranged close to the inner side of the limit nut 216. After the limit nut 216 is pre-tightened, the position of the fixed plate 22 is fixed and there is no axial movement. The movable plate 21 is located between the fixed plate 22 and the mounting seat 11 and can slide axially along the guide rod 12.

[0023] The rotating seat 211 is detachably fixed to the middle position on the side of the movable plate 21 close to the push rod 13 by four sets of countersunk bolts. A round hole 212 is opened at the center of the rotating seat 211 to ensure that the convex block 213 can rotate freely in the round hole 212, avoiding the circumferential deflection of the movable plate 21 when the push rod 13 rotates. Four sets of limit holes 214 are evenly opened along the circumferential direction on the outer periphery of the rotating seat 211, and the limit holes 214 communicate with the round hole 212; a limit bolt 215 is threadedly connected in the limit hole 214. After being tightened, the end of the limit bolt 215 extends into the annular gap between the small end of the convex block 213 and the smooth rod section of the push rod 13 to form an axial limit, which neither affects the rotation of the convex block 213 nor restricts its axial movement along the round hole 212, ensuring the stable transmission of the axial force of the push rod 13 to the movable plate 21.

[0024] Furthermore, the constraint member 3 is used to directly fit the wire to realize insulation clamping and positioning, including an insulating plate 31, a fixed arc plate 33 and a movable arc plate 34. The insulating plate 31 is made of an epoxy resin plate and is fixedly attached to the relative inner sides of the movable plate 21 and the fixed plate 22. Fastening holes 36 are opened near the four corners on the side of the insulating plate 31 far from the other insulating plate 31, and the fastening holes 36 penetrate through both surfaces of the insulating plate 31. Then, the insulating plate 31 is fixed on the movable plate 21 and the fixed plate 22 by bolts. The two insulating plates 31 are arranged in a mirror image to ensure that the insulating plate 31 has no looseness; The insulating plate 31 has a vertical groove 32 on the side facing the other insulating plate 31, which is used to realize the sliding positioning of the fixed arc plate 33 and the movable arc plate 34. The inner sides of the fixed arc plate 33 and the movable arc plate 34 are both arc-shaped structures. The two cooperate to form a deformable circular slot to accommodate wires of different specifications. The movable arc plate 34 is located above the fixed arc plate 33.

[0025] The constraint 3 on the movable plate 21 is arranged opposite to the constraint 3 on the fixed plate 22. The two sets of fixed arc plates 33 and movable arc plates 34 together form a complete circular groove. The diameter of the groove can be adjusted within a certain range to accommodate wires.

[0026] Furthermore, the tightening component 4 is used to drive the movable arc plate 34 to press the return part of the wire, realizing two-stage tightening. It includes a fastening bolt 37, a driven ring 42, a pushing ring 43, and a pressing block 47. The fastening bolt 37 passes through the fastening hole 36 of the insulating plate 31 on the movable plate 21 and the fixed plate 22 to provide tightening driving force. The driven ring 42 and the pushing ring 43 are both sleeved on the outside of the fastening bolt 37 and can move automatically along the bolt axis. The inner side of the pushing ring 43 has an elliptical lifting hole 44, and the pushing ring 43 can rise and fall vertically along the bolt. The driven ring 42 has a first contact surface 45 on the side near the pushing ring 43, and the pushing ring 43 has a second contact surface 46 on the side near the driven ring 42. The pressing block 47 is fixed to the side of the pushing ring 43 near the movable arc plate 34. The lower end of the pressing block 47 has two inclined surfaces machined to 30°, which are parallel to the inclined surfaces 41 of the two sets of movable arc plates 34 to ensure effective transmission of force during pressing.

[0027] By rotating the fastening bolt 37 with a wrench, the driven ring 42 is driven to move towards the pushing ring 43 along the bolt axial direction under the push of the movable plate 21. When the first contact surface 45 of the driven ring 42 contacts the second contact surface 46 of the pushing ring 43 and applies pressure, the pressure is decomposed into a component force along the bolt axial direction and a component force in the vertical direction. Since one side of the pushing ring 43 is in contact with the insulating plate 31, it cannot move along the axial direction. The vertical component force forces the pushing ring 43 to move downward along the fastening bolt 37. The downward movement of the pushing ring 43 drives the pressing block 47 to move downward synchronously. The inclined surface of the pressing block 47 presses the inclined surface 41 of the movable arc plate 34, driving the two sets of movable arc plates 34 to move downward along the slide and approach each other until they are tightly attached to the return part of the wire, completing the secondary tightening. The clamping force can be adjusted by adjusting the tightening torque of the fastening bolt 37 according to the wire specifications.

[0028] The assembly process of the device is as follows: one end of each of the two sets of guide rods 12 is threaded to the lower mounting hole of the mounting base 11. The movable plate 21 and the fixed plate 22 are sleeved on the two sets of guide rods 12 through the guide holes. The movable plate 21 is slid to the side closer to the mounting base 11, and the fixed plate 22 is away from the mounting base 11. The limiting nut 216 is screwed into the end of the guide rod 12 away from the mounting base 11 and pre-tightened. At this time, a clamping space is formed between the fixed plate 22 and the movable plate 21. Screw the external threaded section of the push rod 13 into the threaded hole 14 of the mounting base 11, so that the convex block 213 is inserted into the round hole 212 of the rotating base 211; screw the four sets of limiting bolts 215 into the limiting holes 214 of the rotating base 211, ensuring that the bolt ends extend into the annular gap between the small end of the convex block 213 and the smooth rod section of the push rod 13, and complete the positioning of the push rod 13; Four fastening bolts 37 are passed through the four sets of diagonal fastening holes 36 on the insulating plate 31 of the fixed plate 22. Pushing rings 43 and driven rings 42 are sequentially fitted on the outside of the fastening bolts 37, so that the pushing rings 43 are close to the fixed plate 22 and the inclined surface of the pressing block 47 is aligned with the inclined surface 41 of the movable arc plate 34.

[0029] In use, rotating the push rod 13 counterclockwise drives the movable plate 21 away from the fixed plate 22 along the guide rod 12, causing the circular slots of the two sets of constraint members 3 to open, ensuring that the wire can be smoothly inserted. The end of the wire to be tied, i.e. the overlapping section after bending, is placed into the circular slots of the two sets of constraint members 3, ensuring that the end is completely located between the fixed arc plate 33 and the movable arc plate 34, and that the wire axis is collinear with the slot axis.

[0030] Rotating the push rod 13 clockwise via its square connector allows for operation with an electric gun or wrench. The movable plate 21 is driven to move along the guide rod 12 toward the fixed plate 22 via threaded transmission. The movable plate 21 drives the constraint member 3 on it to move synchronously until the fixed arc plate 33 and the movable arc plate 34 initially contact the surface of the conductor. Since the limiting nut 216 of the guide rod 12 restricts the displacement of the fixed plate 22, the movable plate 21 continues to move until the distance between it and the fixed plate 22 decreases. At this point, the conductor does not wobble significantly, and the first-stage clamping and positioning is completed.

[0031] On the side of the insulating plate 31 on the movable plate 21 near the mounting base 11, four sets of nuts are respectively fitted onto the external threads of the fastening bolt 37. The fastening bolt 37 is rotated clockwise, driving the driven ring 42 to move towards the pushing ring 43. The first contact surface 45 presses against the second contact surface 46. Under the action of the vertical component force, the pushing ring 43 moves down along the fastening bolt 37, driving the pressing block 47 to press against the movable arc plate 34. The movable arc plate 34 moves down along the slide groove and approaches each other until it tightly presses against the return part of the wire, completing the secondary tightening and fixing.

[0032] When the wire needs to be removed, rotate the fastening bolt 37 counterclockwise to drive the driven ring 42 to move in the opposite direction. The pushing ring 43 moves upward under the elastic restoring force of the movable arc plate 34. The squeezing block 47 releases the movable arc plate 34. Rotate the pushing rod 13 counterclockwise to drive the movable plate 21 away from the fixed plate 22 along the guide rod 12. The circular slot opens, and the wire that has been tied can be directly removed. The device returns to its initial state and can be used for the next tying operation.

[0033] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of the present invention.

Claims

1. A quick-connecting device for wire terminals, characterized in that: include, The driving component (1) includes a mounting base (11), a guide rod (12) fixed on the mounting base (11), and a push rod (13) that can be driven along the axial direction of the guide rod (12). The clamping member (2) includes a movable plate (21) and a fixed plate (22). The movable plate (21) and the fixed plate (22) are both slidably sleeved on the guide rod (12) and are arranged opposite to each other along the axis of the guide rod (12). Constraints (3) are respectively disposed on the inner sides of the movable plate (21) and the fixed plate (22); One end of the push rod (13) is connected to the movable plate (21) to drive the movable plate (21) to slide relative to the fixed plate (22) along the guide rod (12), so that the two sets of constraint members (3) move closer or further away from each other, thereby achieving the clamping and loosening of the wire.

2. The quick-connect wire terminal return device according to claim 1, characterized in that: The drive component (1) also includes a threaded hole (14) that penetrates both sides of the upper part of the mounting base (11). At least two sets of guide rods (12) are provided and symmetrically arranged on both sides below the threaded hole (14). A limit nut (216) is threadedly connected to one end of the guide rod (12) away from the mounting base (11). The push rod (13) is threaded into the threaded hole (14), with one end extending through the threaded hole (14) and then extending to one side of the movable plate (21).

3. The quick-connect wire terminal return device according to claim 2, characterized in that: The movable plate (21) includes a rotating seat (211) fixed on the side of the movable plate (21) near the push rod (13). The surface of the rotating seat (211) is provided with a round hole (212), and a protruding block (213) is fixed at one end of the push rod (13) near the rotating seat (211). The convex block (213) is rotatably fitted into the circular hole (212).

4. The quick-connect wire terminal return device according to claim 3, characterized in that: The cross-section of the convex block (213) is "convex" shaped. The outer periphery of the rotating seat (211) is evenly provided with four sets of limiting holes (214) that communicate with the round hole (212). The limiting holes (214) are internally threaded with limiting bolts (215). The end of the limiting bolt (215) extends into the gap between the convex block (213) and the push rod (13).

5. The quick-connect wire terminal return device according to claim 1, characterized in that: The movable plate (21) and the fixed plate (22) have the same structure and are mirror images of each other. The movable plate (21) and the fixed plate (22) are provided with mounting surfaces (23) on their respective inner sides. The constraint member (3) is fixed on the mounting surface (23).

6. The quick-connect wire terminal return device according to claim 5, characterized in that: The constraint member (3) includes an insulating plate (31) disposed on the mounting surface (23). A vertical groove (32) is provided on the side of the insulating plate (31) facing the other insulating plate (31). A fixed arc plate (33) and a movable arc plate (34) are slidably connected in the groove along the vertical direction. The movable arc plate (34) is located above the fixed arc plate (33), and the two cooperate to form an arc-shaped clamping surface (35) for fitting the surface of the conductor.

7. The quick-connect wire terminal return device according to claim 6, characterized in that: The constraint members (3) on the movable plate (21) and the constraint members (3) on the fixed plate (22) are arranged opposite to each other. The fixed arc plate (33) and the movable arc plate (34) of the two sets of constraint members (3) together form a circular slot for accommodating wires.

8. The quick-connecting wire terminal return device according to claim 6, characterized in that: The insulating plate (31) has a fastening hole (36) on the side away from the other insulating plate (31) near the four corners, which extends to its inner mounting surface (23). A fastening bolt (37) is provided in the fastening hole (36).

9. The quick-connecting device for wire terminal return according to claim 8, characterized in that: It also includes a tightening component (4), which is sleeved on the fastening bolt (37) and drives the movable arc plate (34). The tightening component (4) includes inclined surfaces (41) symmetrically opened on the upper surfaces of the two sets of movable arc plates (34). The inclined surfaces (41) and the fastening bolt (37) are vertically aligned. A driven ring (42) and a pushing ring (43) are coaxially sleeved on the outside of the fastening bolt (37). The inner side of the pushing ring (43) is provided with a lifting hole (44) adapted to the external thread of the fastening bolt (37). A first contact surface (45) is provided on the upper side of the driven ring (42), and a second contact surface (46) is provided on the side of the pushing ring (43) close to the driven ring (42). The first contact surface (45) and the second contact surface (46) are parallel and tightly fitted.

10. The quick-connect wire terminal return device according to claim 9, characterized in that: The pushing ring (43) is fixed with a pressing block (47) on one side near the movable arc plate (34). The pressing block (47) has an inverted triangular structure. The lower two sides of the pressing block (47) are parallel and fit against the inclined surfaces (41) of the two sets of movable arc plates (34).

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