CN114123035B - Wire drag-and-drop pulley - Google Patents

Abstract

The invention discloses a wire dragging and dropping pulley, which relates to the technical field of wire erecting equipment and comprises a support frame, a wire pulley, a connecting pulley and a triggering mechanism, wherein the wire pulley is rotatably arranged on the support frame and used for dragging and dropping a wire, the connecting pulley is movably arranged on the support frame, a working station for dragging and dropping the wire by replacing the wire pulley is arranged on the moving stroke of the connecting pulley, and the triggering mechanism is triggered when detecting a connecting tube protection device on the wire and drives the connecting pulley to move to the working station so as to enable the connecting tube protection device to pass through the connecting pulley. In the invention, the triggering mechanism is triggered when the splicing sleeve protection device on the wire is detected, and drives the splicing pulley to move upwards to replace the wire pulley to drag and drop the wire, so that the splicing sleeve protection device smoothly passes through the splicing pulley, the wire is protected in the wire dragging and dropping process, and the splicing sleeve protection device can smoothly pass through without damaging the snake section.

Description

A wire dragging and dropping trolley

Technical field

The invention relates to the technical field of electric power wiring, specifically a wire dragging and dropping pulley.

Background technique

During the construction of power and communication lines, wire laying requires the use of wire dragging and dropping pulleys to complete. In the actual wiring process, to ensure the continuity of the wires, a connecting pipe needs to be used to connect the multi-axis wires. The connecting pipe cannot be twisted and deformed during the wiring process, so a connecting pipe protection device needs to be installed at the connecting pipe. The diameter of the protective device is generally more than twice the diameter of the conductor.

At present, the commonly used wire dragging and dropping pulley ① mainly consists of a support frame and a pulley. The diameter of the wheel groove of the pulley is larger than the diameter of the connecting pipe protection device, so as to ensure that both the wire and the connecting pipe protection device can pass through the pulley smoothly. The Chinese patent with announcement number CN101364717B discloses a rubber-coated double R groove-shaped wire pay-off pulley ②. The groove section of the wire pay-off pulley is double R-shaped and consists of two arcs with different radii. In the larger A smaller radius arc groove is provided at the bottom of the arc groove. The small arc groove at the bottom is used for the passage of wires, and the large arc groove on the outside is used for the passage of the connecting pipe protection device, thereby increasing the The contact area of the conductor and splice pipe protection device with the conductor pay-off pulley groove when passing through, thus reducing the wear of the conductor.

In the prior art, the above-mentioned type of wire dragging and dropping pulley ① has a shortcoming: since the diameter of the pulley groove is more than twice the diameter of the wire, the contact surface between the wire and the pulley groove is very small when the wire passes through the pulley. , in theory, there is only line contact between the conductor and the wheel groove. In practice, the tension of the wire causes a large extrusion force between the conductor and the wheel groove, and the side of the conductor in contact with the wheel groove is forced to flatten and deform. This will undoubtedly have a certain negative impact on the quality of the wire.

Although the small arc groove of the above-mentioned double R groove-shaped wire pay-off pulley ② supports the entire lower arc surface of the conductor, it has not been popularized. The main reason is that when the conductor is in the small arc groove When switching to the connecting pipe protection device and entering the large arc groove, the bending snake joints at both ends of the connecting pipe protection device will be stuck into the small arc groove under the traction of the wire, and then the snake joints will be inserted into the small arc groove. When pulled into a large arc groove, the damage to the snake joints will be greater.

Contents of the invention

The object of the present invention is to provide a wire dragging and dropping trolley to solve the above-mentioned deficiencies in the prior art.

In order to achieve the above object, the present invention provides the following technical solution: a wire dragging and dropping pulley, including a support frame, a wire pulley, a connecting pulley and a triggering mechanism, wherein the wire pulley is rotatably arranged on the support frame for dragging and dropping wires. , the connecting pulley is movably arranged on the support frame. The movable stroke of the connecting pulley has a working station that replaces the wire pulley and drags and drops the wire. The triggering mechanism is triggered when the connecting pipe protection device on the wire is detected. , and drive the connecting pulley to move to the working station, so that the connecting pipe protection device can pass through the connecting pulley.

Furthermore, a swing bar coaxial with the wire pulley is rotatably provided on both sides of the support frame. The connecting pulley is rotatably connected between the other ends of the two swing bars. The axial direction of the connecting pulley is parallel to the axial direction of the wire pulley. The pulley rotates relative to the support frame through two swing rods.

Further, the triggering mechanism includes a detection unit and a driving unit. The detection unit detects that the connecting pipe protection device on the wire is triggered, and the driving unit drives the swing rod to rotate to move the connecting pulley to the working station.

Further, the detection unit includes two coaxial guide rods, one guide rod is fixedly connected to each side of the support frame, and a connecting rod is movably mounted on the two guide rods. The two connecting rods are One end of the rod away from the corresponding guide rod is rotatably connected to an adapter part. The two adapter parts are slidingly connected through a straight rod parallel to the guide rod. A driver is provided between the two adapter parts to slide them together. The elastic unit has a trigger pulley respectively rotatably connected to the two adapter parts. The two trigger pulleys are located on both sides of the wire. When the connecting pipe protection device passes between the two trigger pulleys, the two trigger pulleys are separated; the detection unit There are two detection units located on the movement routes of the wires on both sides of the support frame, and the two detection units share the two guide rods.

Further, the driving unit includes two sliding sleeves, one sliding sleeve is provided on each of the two guide rods sliding along the axial direction, a round rod is provided on the two sliding sleeves, and the two swing rods are respectively fixed. Connected to a cylinder, the cylinder is coaxial with the rotating shaft between the swing rod and the support frame. A spiral groove is respectively provided on the two cylinders. The two spiral grooves have opposite spiral directions. The two circular rods are respectively connected with the rotating shaft. One of the spiral grooves is slidingly connected, and the two trigger pulleys of any of the detection units are separated and drive the two round rods to slide in the corresponding spiral grooves to rotate the two cylinders to drive the connecting pulley to move to the working station.

Further, the driving unit includes two sliding rods, one sliding rod is provided on each of the two guide rods sliding along the axial direction, a rack is fixedly connected to the two sliding rods, and the support frame is rotatably connected. There is a spur gear, two racks mesh with the spur gear from both sides of the first gear, a first bevel gear is coaxially fixedly connected to the spur gear, and a second bevel gear is fixedly connected to one of the swing bars. , the second bevel gear is coaxial with the rotating shaft between the swing rod and the support frame, the second bevel gear meshes with the first bevel gear, the separation of the two trigger pulleys drives the two gears to drive the spur gear and the first bevel gear to rotate, The second bevel gear is then transmitted to drive the connecting pulley to move to the working station.

Further, the elastic unit includes a tension spring, and each connecting section of the tension spring is connected to an adapter part.

Further, the diameter of the trigger pulley's wheel groove matches the diameter of the pipe body of the connecting pipe protection device, and the distance along the radial direction of the trigger pulley between the edge of the trigger pulley's wheel groove and the center of the wheel groove bottom is equal to the radius of the wire. .

In the above technical solution, the present invention provides a wire dragging and dropping pulley. The diameter of the wire pulley matches the diameter of the wire. It is specially used to drag and drop the wire. It can support the entire off-duty arc surface of the wire and greatly reduce the cost of the wire. It prevents the flat deformation of the conductor and protects the conductor well. The triggering mechanism is triggered when the connection tube protection device on the conductor is detected, and drives the connection pulley to move upward to replace the conductor pulley to drag and drop the conductor. The diameter of the connection pulley is consistent with the The diameter of the connecting pipe protection device is adapted so that the connecting pipe protecting device can pass smoothly through the connecting pulley. The invention not only realizes the protection of the wire during the process of dragging and dropping the wire, but also enables the connecting pipe protection device to pass smoothly without damaging the snake joint.

Description of drawings

In order to more clearly explain the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description only describe the present invention. For some embodiments, those of ordinary skill in the art can also obtain other drawings based on these drawings.

Figure 1 is a schematic diagram of the overall structure provided by an embodiment of the present invention;

Figure 2-5 is a schematic diagram of the connecting pipe protection device according to the present invention before it reaches the wire dragging and dropping trolley;

Figures 6-7 are schematic diagrams of the connecting pipe protection device in the present invention when it only triggers the first detection unit;

Figures 8-9 are schematic diagrams of the connecting pipe protection device in the present invention triggering two detection units at the same time;

Figure 10-11 is a schematic diagram when the connecting pipe protection device only triggers the second detection unit in the present invention;

Figures 12-13 are schematic diagrams of the connecting pipe protection device of the present invention when dragging and dropping the pulley through the wire;

Figure 14 is a schematic diagram of the overall structure provided by another embodiment of the present invention.

Explanation of reference symbols:

1. Support frame; 1.1. Connecting block; 2. Wire pulley; 3. Continuous pulley; 4. Guide rod; 5. Connecting rod; 6. Adapter; 7. Straight rod; 8. Elastic unit; 9. Trigger pulley ;10. Sliding sleeve; 11. Round rod; 12. Cylinder; 13. Spiral groove; 14. Sliding rod; 14.1. Support rod; 15. Rack; 16. Spur gear; 17. First bevel gear; 18. Second bevel gear; 19. Skirt ring; 20. Swing rod; 21. Wire; 22. Continuous pipe protection device.

Detailed ways

In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be introduced in further detail below in conjunction with the accompanying drawings.

Please refer to Figures 1-14. A wire dragging and dropping pulley provided by an embodiment of the present invention includes a support frame 1, a wire pulley 2, a connecting pulley 3 and a triggering mechanism. The wire pulley 2 is rotatably installed on the support frame 1. When dragging and dropping wires, the connecting pulley 3 is movably arranged on the support frame 1. The movable stroke of the connecting pulley 3 has a working station that replaces the wire pulley 2 and drags and drops the wires. When the triggering mechanism detects the connecting tube protection device on the wires, is triggered, and drives the connecting pulley 3 to move to the working station, so that the connecting pipe protection device passes through the connecting pulley 3.

Specifically, the support frame 1 has an inverted U-shaped structure, and the top of the support frame 1 is provided with a hook or other connection structure in the prior art, which is used to hook or connect the support frame 1 to the insulator of the line tower or pole, and the conductor. Pulley 2 is used specifically to drag and drop wires. The diameter of the wheel groove of wire pulley 2 matches the diameter of the wire. When dragging and dropping the wire, it can support the entire off-duty arc surface of the wire, which greatly reduces the flattening of the wire. deformation, well protecting the conductor, and the diameter of the connecting pulley 3 is adapted to the diameter of the connecting pipe protection device, so that the connecting pipe protecting device can pass smoothly through the connecting pulley 3. The connecting pulley 3 is movably arranged on the support frame 1 so that the connecting pulley 3 can adjust its position relative to the wire pulley 2. Preferably, the connecting pulley 3 is slidably installed on the support rod. Preferably, the connecting pulley 3 is rotatably installed on the supporting rod. Specifically, A swing bar 20 coaxial with the wire pulley 2 is provided for rotation on both sides of the support frame 1. The connecting pulley 3 is rotatably connected between the other ends of the two swing bars 20. The connecting pulley 3 is axially parallel to the wire pulley 2. The connecting pulley 3 rotates relative to the support frame 1 through the two swing bars 20 . When the wire pulley 2 drags and drops the wire, the connecting pulley 3 is located below the wire and does not contact the wire. When the connecting pipe protection device approaches the wire pulley 2, the triggering mechanism is triggered and drives the connecting pulley 3 to move online to the working station. , the connecting pulley 3 supports the wire, and the wire no longer passes through the wire pulley 2. Then the connecting pipe protection device immediately passes through the connecting pulley 3. After the connecting pipe protecting device completely passes, the triggering mechanism is no longer in contact with the pipe protecting device. Triggered, the connecting pulley 3 moves downward and leaves the working station under the pressure of its own weight and the wire, and then the wire re-enters the groove of the wire pulley 2, and the wire pulley 2 continues to drag and drop the wire.

In the above technical solution, the present invention provides a wire dragging and dropping pulley. The diameter of the wire pulley 2 is adapted to the diameter of the wire. It is specially used for dragging and dropping the wire. It can support the entire off-duty arc surface of the wire, which greatly improves the performance of the wire. The flattening deformation of the wire is reduced and the wire is well protected. The triggering mechanism is triggered when the connecting tube protection device on the wire is detected, and drives the connecting pulley 3 to move upward to replace the wire pulley 2 to drag and drop the wire. The connecting pulley The diameter of 3 is adapted to the diameter of the connecting pipe protection device, so that the connecting pipe protection device can pass smoothly from the connecting pulley 3. The invention not only realizes the protection of the wire during the process of dragging and dropping the wire, but also enables the connecting pipe protection device to pass smoothly without damaging the snake joint.

As a preferred embodiment of the present invention, the triggering mechanism includes a detection unit and a driving unit. The detection unit detects that the connecting pipe protection device on the wire is triggered, and the driving unit drives the swing rod 20 to rotate to move the connecting pulley 3 to the working station. Preferably, the driving unit is a motor or a hydraulic device, and the detection unit is a sensor that can distinguish between the wire and the connecting pipe protection device, such as a photoelectric sensor, a pressure sensor, a distance sensor, etc., or the detection device is a travel switch. When the connecting pipe protection device is about to pass In the present invention, the detection unit is triggered, that is, it is detected by the sensor or the travel switch is opened, so that the motor or hydraulic device is started and drives the connecting pulley 3 to move to the working station.

As a preferred technical solution of this embodiment, the detection unit includes two coaxial guide rods 4. One of the guide rods 4 is fixedly connected to each side of the support frame 1. A connecting rod 5 is movably mounted on the two guide rods 4. That is, the guide rod 4 is columnar, the connecting rod 5 can rotate on the corresponding guide rod 4, and can slide axially on the corresponding guide rod 4 along the guide rod 4, and the ends of the two connecting rods 5 away from the corresponding guide rod 4 are respectively connected by rotation. There is an adapter part 6, and the two adapter parts 6 are slidingly connected through a straight rod 7 parallel to the guide rod 4. Specifically, the straight rod 7 is fixedly connected to one of the adapter parts 6, and is fixedly connected to the other adapter part 6. Sliding connection, an elastic unit 8 is provided between the two adapter parts 6 to drive the two adapter parts 6 to slide together. Preferably, the elastic unit 8 includes a tension spring, and the segments of the tension spring are each connected to an adapter part 6. The two adapter parts 6 There is a trigger pulley 9 that is rotatably connected to the two trigger pulleys 9 respectively. The two trigger pulleys 9 are located on both sides of the conductor. The elastic force of the elastic unit 8 makes the two trigger pulleys 9 close to each other. The conductor passes between the wheel grooves of the two trigger pulleys 9, and the connecting pipe protection device passes through Between the wheel grooves of the two trigger pulleys 9, the connecting pipe protection device should be thicker than the wire, so that the two trigger pulleys 9 can be separated. Further, there are two detection units, which are respectively located on the wire movement routes on both sides of the support frame 1. That is, when dragging and dropping the wires, the wires that have not passed through the wire pulley 2 are passed from one of the detection units (for the convenience of subsequent description, called The first detection unit) passes between the grooves of the two trigger pulleys 9, and the wire passing through the wire pulley 2 passes between the grooves of the two trigger pulleys 9 of the other detection unit (called the second detection unit); The two detection units share two guide rods 4, that is, one guide rod 4 is movable with two connecting rods 5, and the two connecting rods 5 belong to different detection units.

As a further preferred technical solution of this embodiment, the driving unit includes two sliding sleeves 10. One sliding sleeve 10 is provided on each of the two guide rods 4 to slide along the axial direction. The sliding sleeves 10 cannot rotate relative to the guide rod 4. The two sliding sleeves 10 are A round rod 11 is provided respectively, and a cylinder 12 is fixedly connected to the two pendulum rods 20 respectively. The cylinder 12 is coaxial with the rotating axis between the pendulum rod 20 and the support frame 1. A spiral groove is respectively provided on the circumferential side of the two cylinders 12. 13. The two spiral grooves 13 have opposite spiral directions. The two round rods 11 are each slidingly connected to a spiral groove 13. When the two trigger pulleys 9 of any detection unit are separated by the contact tube protection device, they drive the two sliding sleeves 10 through the connecting rod 5. Sliding away, the two round sleeves drive the two round rods 11 to slide in the corresponding spiral grooves 13, thereby causing the two cylinders 12 to rotate in the same direction. The two cylinders 12 drive the two swing bars 20 to rotate, so that the connecting pulley 3 moves to the working position. Bit.

As a preferred technical solution of this embodiment, the diameter of the wheel groove of the trigger pulley 9 is adapted to the diameter of the pipe body of the connecting pipe protection device. The distance in the direction is equal to the radius of the conductor. In this way, when the conductor passes between the two trigger pulleys 9 of the detection unit, the groove bottoms of the two trigger pulleys 9 just limit the conductor, reducing the amplitude of the conductor swing due to cross wind, and affecting the conductor. It can play a role in maintaining stability. When the connecting pipe protection device passes between the two trigger pulleys 9 of the detection unit, the peripheral sides of the connecting pipe protection device just fit perfectly with the entire grooves of the two trigger pulleys 9, so that on the one hand, the connection is The extrusion contact surface between the pipe protection device and the trigger pulley 9 is increased, the force is balanced, and the wear between the connecting pipe protection device and the trigger pulley 9 is reduced. On the other hand, it can prevent the connecting pipe protection device from being separated from the trigger pulley 9 .

The overall working principle of this embodiment is: In this embodiment, the two connecting rods 5 of the second detection unit are located between the two connecting rods 5 of the first detection unit, and the wire dragging and dropping direction is as shown in the drawings. From left to right, when only the wire is dragged and dropped, that is, when the splice pipe protection device has not reached the wire dragging and dropping pulley, as shown in Figure 2-5, the wire is dragged and dropped by wire pulley 2, and splice pulley 3 is located below the wire. And without contacting the wire, the elastic unit 8 causes the two trigger pulleys 9 of the first detection unit to close on both sides of the wire that has not passed through the wire pulley 2, and the two trigger pulleys 9 of the second detection unit to close on the side of the wire that has passed through the wire pulley 2. both sides of the wire;

When the connecting pipe protection device approaches the wire pulley 2, the connecting pipe protection device first passes between the two triggering pulleys 9 of the first detection unit, causing the two triggering pulleys 9 to separate, and the two triggering pulleys 9 pass through the corresponding adapter part 6, The connecting rod 5 drives the two sliding sleeves 10 to slide on the corresponding guide rod 4, and the two sliding sleeves 10 drive the upper round rod 11 to slide. The sliding direction of the two round rods 11 is along the axis of the guide rod 4 toward both sides of the support frame 1 Sliding apart, the two round rods 11 slide and cooperate with the corresponding spiral grooves 13 to cause the two bodies to rotate synchronously in the same direction. The two cylinders 12 drive the two swing bars 20 to rotate, so that the connecting pulley 3 rotates upward to the working station, as shown in the figure 6-7. At this time, the connecting pulley 3 supports the wire, and the wire no longer passes through the wire pulley 2. The wire pulley 2 is located below the wire and does not contact the wire;

Immediately afterwards, the connecting pipe protection device immediately reached the connecting pulley 3 and passed over the connecting pulley 3. Since the connecting pipe protecting device except for the snake joints at both ends is rigid and cannot be bent, the connecting pipe protecting device is positioned almost horizontally. The posture passes through the connecting pulley 3, and the two triggering pulleys 9 of the detection unit have a certain degree of freedom in the vertical direction under the connection of the adapter 6 and the connecting rod. At this time, the two triggering pulleys 9 of the first detection unit are also connected. The driving direction of the pipe protection device is adjusted to the shape, as shown in Figure 8-9. As the connecting pipe protection device continues to pass through the connecting pulley 3, the connecting pipe protection device starts to protect the connecting pipe before it breaks away from the two trigger pulleys 9 of the first detection unit. The device then enters between the two trigger pulleys 9 of the second detection unit, causing the two trigger pulleys 9 of the second detection unit to separate, and the two connecting rods 5 of the second detection unit slide on the corresponding guide rods 4. And contact the connecting rod 5 of the corresponding first detection unit;

Next, the connecting pipe protection device completely passes through the connecting pulley 3. The connecting pipe protection device naturally passes between the two trigger pulleys 9 of the first detection unit, but the connecting pipe protection device has not yet completely passed through the second detection unit. Between the two trigger pulleys 9, the connecting rod 5 of the second detection unit squeezes the sliding sleeve 10 through the corresponding connecting rod 5 of the first detection unit, which also makes the connecting pulley 3 still maintained in the working position. As shown in Figure 10-11, this can prevent the connecting pipe protection device from falling directly on the wire pulley 2 and causing damage to the wire connecting pulley 2. At this time, the two trigger pulleys 9 of the first detection unit cannot be closed temporarily. In order to prevent the wire from falling from the second The grooves of the two trigger pulleys 9 of a detection unit are separated from each other. Skirt rings 19 are respectively provided on both ends of one of the trigger pulleys 9 of the first detection unit to prevent the wires from detaching from the trigger pulley 9;

Finally, the connecting pipe protection device completely drags and drops the pulley through the wire, that is, the connecting pipe protection device completely passes between the two trigger pulleys 9 of the second detection unit, so that the connecting pulley 3 moves downward under the pressure of its own weight and the wire and leaves the work. work station, and then the wire re-enters the groove of the wire pulley 2, and the wire pulley 2 continues to drag and drop the wire. In this embodiment, the elastic unit 8 in the first detection unit may not be provided.

In another embodiment provided by the present invention, the driving unit includes two sliding rods 14. One sliding rod 14 is provided on each of the two guide rods 4 to slide along the axial direction. A rack 15 is fixedly connected to the two sliding rods 14, one of which is fixedly connected to the rack. The rack 15 is directly connected to the sliding rod 14, and the other rack 15 is connected to another sliding rod 14 through a special-shaped support rod 14.1. Gear 16, two racks 15 mesh with the spur gear 16 from both sides of the first gear at the same time. A first bevel gear 17 is coaxially fixedly connected to the spur gear 16, and a second bevel gear 18 is fixedly connected to one of the swing rods 20. , the second bevel gear 18 is coaxial with the rotation axis between the swing rod 20 and the support frame 1 , and the second bevel gear 18 meshes with the first bevel gear 17 . When the connecting pipe protection device passes between the two trigger pulleys 9 of the detection unit, the two trigger pulleys 9 separate. The two trigger pulleys 9 make the two sliding rods 14 slide on the corresponding guide rods 4. The sliding directions of the two guide rods 4 are opposite and the distance between them is increased. Therefore, the two racks 15 move in opposite directions, so that the two racks 15 drive the spur gear 16 to rotate at the same time. The spur gear 16 drives the first bevel gear 17 to rotate. The first bevel gear 17 drives the second bevel gear 18 to rotate. The bevel gear 18 drives the swing rod 20 to rotate, and the swing rod 20 moves the connecting pulley 3 to the working position.

Certain exemplary embodiments of the present invention have been described above only by way of illustration. It goes without saying that those skilled in the art can implement various embodiments in various ways without departing from the spirit and scope of the present invention. The described embodiments are modified. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of the claims of the present invention.

Claims (7)

1. A wire drag-and-drop sled comprising:

a support frame;

the wire pulley is rotatably arranged on the support frame and is used for dragging and dropping wires;

the connecting pulley is movably arranged on the support frame, and the movable stroke of the connecting pulley is provided with a working station for dragging and dropping the wire instead of the wire pulley;

the triggering mechanism is triggered when detecting the splicing sleeve protection device on the lead and drives the splicing sleeve protection device to move to the working station so as to enable the splicing sleeve protection device to pass through the splicing sleeve protection device;

the two sides of the support frame are respectively and rotatably provided with a swinging rod coaxial with the wire pulleys, the triggering mechanism comprises a detection unit and a driving unit, the detection unit is triggered when detecting that a splicing sleeve protection device on the wire is triggered, the driving unit drives the swinging rod to rotate so as to enable the splicing pulleys to move to a working station, the detection unit comprises two coaxial guide rods, two sides of the support frame are respectively and fixedly connected with one guide rod, two guide rods are respectively and movably sleeved with a connecting rod, one ends of the two connecting rods, far away from the corresponding guide rods, are respectively and rotatably connected with a switching part, two switching parts are connected through a straight rod sliding connection parallel to the guide rods, an elastic unit for driving the two switching parts to slide and fold is arranged between the two switching parts, two triggering pulleys are respectively and rotatably connected with the two switching parts, and the splicing sleeve protection device is separated from the two triggering pulleys when passing through the two triggering pulleys.

2. The wire drag-and-drop pulley according to claim 1, wherein the connecting pulley is rotatably connected between the other ends of the two swing rods, the connecting pulley is axially parallel to the wire pulley, and the connecting pulley is rotated relative to the support frame through the two swing rods.

3. The wire drag and drop tackle according to claim 2, wherein two detection units are provided, and are respectively located on wire moving paths on two sides of the support frame, and the two detection units share two guide rods.

4. A wire drag-and-drop pulley according to claim 3, wherein the driving unit comprises two sliding sleeves, one sliding sleeve is arranged on each guide rod in an axial direction in a sliding manner, a round rod is respectively arranged on each sliding sleeve, a cylinder is respectively and fixedly connected to each swing rod, each cylinder is coaxial with a rotating shaft between each swing rod and the supporting frame, a spiral groove is respectively formed in each cylinder, spiral directions of the two spiral grooves are opposite, each round rod is in sliding connection with one spiral groove, and two trigger pulleys of any detection unit are separated to drive the two round rods to slide in the corresponding spiral grooves so as to enable the two cylinders to rotate, so that the continuous pulleys are driven to move to a working station.

5. A wire drag-and-drop tackle according to claim 3, wherein the driving unit comprises two sliding rods, one sliding rod is arranged on each guiding rod in an axial direction in a sliding manner, one rack is fixedly connected to each sliding rod, a spur gear is rotatably connected to the supporting frame, the two racks are meshed with the spur gear from two sides of the first gear, a first bevel gear is coaxially and fixedly connected to the spur gear, a second bevel gear is fixedly connected to one swinging rod, the second bevel gear is coaxial with a rotating shaft between the swinging rod and the supporting frame, the second bevel gear is meshed with the first bevel gear, the two triggering pulleys are separated to drive the two gears to drive the spur gear and the first bevel gear to rotate, and the second bevel gear is driven to move to a working station.

6. A wire drag and drop sled according to claim 3 wherein the resilient units comprise tension springs, the connecting sections of the tension springs each being connected to an adapter.

7. A wire drag-and-drop block as claimed in claim 3, wherein the diameter of the groove of the trigger pulley is adapted to the diameter of the tube body of the splice protection device, and the radial distance between the edge of the groove of the trigger pulley and the center of the groove bottom of the groove along the trigger pulley is equal to the radius of the wire.