A mounting plier for a cushioned collar and method of use

Abstract

This invention relates to the field of clamp pliers, and in particular to a clamping pliers for installing clamps with pads and its method of use. The clamps include jaws, a handle, left and right clamping pliers, a ratchet tightening mechanism, a clamp cutting mechanism, and a clamping slider. One end of the jaws is hinged to the handle, and the other end is hinged to the left and right clamping pliers respectively. The ratchet tightening mechanism includes a central ratchet and a drive assembly. The clamp cutting mechanism includes a rotatably connected blade lever and a blade. The jaws have a positioning groove, a clamp movement channel, a mounting hole, a mounting groove, and a slot. The clamping slider matches the positioning groove and protrudes downwards from it. The left and right clamping pliers push the clamping slider to move within the positioning groove. The handle is connected to the drive assembly via the drive lever, causing the central ratchet to rotate unidirectionally, moving the clamp upwards along the clamp movement channel. When the clamp is tightened to the correct position, the handle presses down, the blade moves downwards, and the clamp is cut. This clamping pliers and its method of use are simple to operate and improve installation efficiency.

Description

Technical Field

[0001] This invention relates to the field of clamp pliers technology, and in particular to an installation pliers for a padded clamp and its method of use. Background Technology

[0002] During production, after cable laying, padded clamps are used to tighten the cables. To achieve better tightening results, especially in the aerospace field, HB3-20 padded clamps are commonly used for cable tightening. The HB3-20 padded clamp consists of a clamp loop and two lugs at the head of the clamp loop.

[0003] When installing the clamp, first select a clamp with a suitable strap length, then thread the strap through the cable laid on the machine body. Next, thread the end of the strap from bottom to top through the loop at the other end of the clamp, as shown in the instruction manual. Figure 6 As shown. Pull the clamp tape in the opposite direction to tighten the cable, then fold the clamp tape so that the end fits onto the loop. The remaining length of the clamp tape end varies depending on the cable diameter. It should rest within the ear slots at the front of the loop. The operator needs to use pliers or similar tools to further tighten the clamp tape while bending the left and right ear slots to press the end firmly. Finally, any excess clamp tape at the end must be cut off according to standard requirements, as shown in the instruction manual. Figure 7 As shown, the cable tightening and installation operation is finally completed.

[0004] The above technical solution will have the following problems in actual use: there are many operation steps, several tools are required for installation, and manual operation is cumbersome and inefficient. Summary of the Invention

[0005] To solve the above-mentioned technical problems, this invention proposes an installation pliers with padding clamps and its usage method, which is simple to operate, convenient to use, and can improve installation efficiency.

[0006] This invention is achieved by adopting the following technical solution: A type of clamping pliers with padded clamps includes jaws, a handle, a left clamp, a right clamp, a ratchet tightening mechanism, a clamp cutting mechanism, and a clamp slider. One end of the jaws is hinged to the handle, and the other end is hinged to the left and right clamps via a main pin. The ratchet tightening mechanism includes a central ratchet and a drive assembly for unidirectional rotation of the central ratchet. The clamp cutting mechanism includes a blade lever and a blade; one end of the blade lever is rotatably connected to the handle via a thrust pin, and the other end is rotatably connected to the blade. The jaws are provided with a positioning groove, a clamp movement channel, and mounting holes, mounting grooves, and slots communicating with the clamp movement channel. The positioning groove... The clamp is connected to the slot and matches the clamp slider, which protrudes downward from the positioning slot. The mounting hole is used to install the central ratchet, and the mounting slot is used to place the blade. The free ends of the left and right clamps can clamp or open to push the clamp slider to move within the positioning slot, thereby clamping the two lugs of the clamp ring head to the end of the clamp band. The clamp handle is also connected to the drive assembly via a drive rod. The clamp handle moves up and down, driving the central ratchet to rotate unidirectionally, thereby driving the clamp band to move upward along the clamp band movement channel. When the clamp band cutting mechanism is installed on the clamp handle via a thrust pin, the clamp handle is pressed down, driving the blade to move downward along the mounting slot, thereby cutting the clamp band.

[0007] The drive assembly includes a mounting component, a main shaft, an escapement pawl, and a drive ratchet; the mounting component is rotatably connected to the main shaft; the drive ratchet and the central ratchet are respectively mounted on the main shaft, and the teeth of the central ratchet are opposite to those of the drive ratchet, and the central ratchet and the drive ratchet rotate synchronously in the same direction; the outer side of the mounting component is connected to the pressure handle via a drive pressure rod; the escapement pawl is rotatably connected to the inner side of the mounting component via a pin, for cooperating with the drive ratchet to achieve unidirectional rotation of the drive ratchet.

[0008] The ratchet tightening mechanism consists of two sets of mounting components, drive levers, escape pawls, and drive ratchets, symmetrically arranged at both ends of the main shaft.

[0009] The distance between the top of the central ratchet tooth and the bottom plane of the hoop moving channel is between x+0.1mm and x+0.5mm, where x is the thickness of the hoop steel plate.

[0010] The blade pressure rod has a cylindrical groove at its bottom, and the blade has a cylinder at its top that matches the cylindrical groove.

[0011] A first spring is also provided between the left and right ear clamps.

[0012] A second spring is also provided between the pressure handle and the main pin.

[0013] The top of the main pin is provided with a machining groove, one end of the second spring is connected to the pressure handle, and the other end is movably disposed in the machining groove.

[0014] The pressure lug slider is provided with a positioning block, and the positioning groove is provided with a groove that matches the positioning block.

[0015] A method for using a padded clamp installation pliers includes the following steps: Step S1. Thread the clamp through the cable to be tightened and pass the end of the clamp through the clamp ring; Step S2. Insert the end of the strap into the groove so that the surface of the end of the strap contacts the central ratchet inside the groove; Step S3. Press the handle up and down to drive the central ratchet to rotate in one direction, and the teeth of the central ratchet will pull the end of the belt upward. Step S4. After the hoop is tightened in place, insert the thrust pin and press down the handle to cut off the end of the hoop. Step S5. Place the ear-pressing slider into the positioning groove, clamp the left ear-pressing clamp and the right ear-pressing clamp, and clamp the free ends of the left ear-pressing clamp and the right ear-pressing clamp. Push the ear-pressing slider in so that the two ear pieces at the head of the clamp ring clamp the end of the clamp band. Step S6. Use the left and right ear clamps to repeatedly clamp until the ear piece is formed in place.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The installation pliers of this invention can complete the tightening of the padded clamp, bending of the end of the clamp, pressing of the left and right ear pieces, and cutting of the end of the clamp. Especially for HB3-20 padded clamps, the above steps can be completed in one go, avoiding the difficulties of manual installation of HB3-20 padded clamps and the problem of needing to use multiple tools in the installation process. All operation steps are concentrated on one tool, which not only simplifies the operation but also improves the production efficiency.

[0017] 2. In this invention, the cooperation between the escapement pawl and the drive ratchet enables unidirectional movement of the end of the belt, preventing it from moving in the opposite direction.

[0018] 3. The mounting components, drive levers, escapement pawls, and drive ratchet are in two sets, symmetrically arranged at both ends of the main shaft, which facilitates the improvement of structural stability and uniform force distribution.

[0019] 4. By limiting the distance between the top of the central ratchet tooth and the bottom plane of the belt moving channel, it can be ensured that the top of the central ratchet tooth generates sufficient static friction with the black rubber cloth on the outer layer of the belt.

[0020] 5. Through the mutual cooperation between the cylindrical groove and the cylinder, the structure is simple and reliable, and can play a certain guiding and positioning role.

[0021] 6. The design of the first and second springs enables automatic reset and enhances stability during operation.

[0022] 7. The pressure ear slider is provided with a positioning block, and the positioning groove is provided with a groove that matches the positioning block, so that the positioning groove is an irregular groove. Through this structure, the pressure ear slider can be stably set in the positioning groove without falling off, and can achieve a good guiding effect. It can ensure that the pressure ear slider only moves horizontally and does not deflect or tilt, thus ensuring the quality of the ear clamping.

[0023] 8. By using this installation clamp, all four working steps can be completed: tightening the clamp, bending the end of the clamp strap, pressing the left and right lugs, and cutting the end of the clamp strap, making the operation simpler. Attached Figure Description

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments, wherein: Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 ; Figure 4 This is a schematic diagram of the structure after removing the right ear clamp in this invention; Figure 5 This is a cross-sectional structural diagram of the present invention; Figure 6 This is a schematic diagram of the installation of HB3-20 with a gasket clamp; Figure 7 This is a schematic diagram illustrating the use of the HB3-20 clamp with padding. Marked in the image: 1. Jaws, 2. Clamping handle, 3. Left clamping clamp, 4. Right clamping clamp, 5. Clamping slider, 6. Kingpin, 7. Mounting component, 8. Spindle, 9. Central ratchet, 10. Blade lever, 11. Blade, 12. Thrust pin, 13. Positioning slot, 14. Hoop movement channel, 15. Groove, 16. Drive lever, 17. Escape pawl, 18. Drive ratchet, 19. First spring, 20. Second spring, 21. Positioning block, 22. Mounting slot. Detailed Implementation

[0025] Example 1 As a basic embodiment of the present invention, the present invention includes an installation pliers for a padded clamp, comprising a jaw 1, a pressure handle 2, a left clamp 3, a right clamp 4, a ratchet tightening mechanism, a clamp cutting mechanism, and a clamp slider 5. One end of the jaw 1 is hinged to the pressure handle 2, and the other end is hinged to the left clamp 3 and the right clamp 4 respectively via a main pin 6. The ratchet tightening mechanism includes a central ratchet 9 and a drive assembly for driving the central ratchet 9 to rotate unidirectionally. The clamp cutting mechanism includes a blade pressure rod 10 and a blade 11. One end of the blade pressure rod 10 is rotatably connected to the pressure handle 2 via a thrust pin 12, and the other end is rotatably connected to the blade 11.

[0026] The jaw 1 is provided with a positioning groove 13, a strap movement channel 14, a mounting hole, a mounting groove 22, and a slot 15. The mounting hole, mounting groove 22, and slot 15 are respectively connected to the strap movement channel 14. The positioning groove 13 is connected to the slot 15 and matches the pressure lug slider 5, which protrudes downward from the positioning groove 13. The mounting hole is used to install the central ratchet 9, and the mounting groove 22 is used to place the blade 11.

[0027] The free ends of the left and right clamping clamps 3 and 4 can clamp or open to push the clamping slider 5 to move within the positioning groove 13, thereby clamping the two ear pieces at the head of the clamping ring to the end of the clamping band. The clamping handle 2 is also connected to the driving assembly via the driving rod 16, which converts the up-and-down movement of the clamping handle 2 into the rotational movement of the driving assembly, further driving the central ratchet 9 to rotate unidirectionally, thereby causing the clamping band to move upward along the clamping band movement channel 14. When the clamping band is in place, after the clamping band cutting mechanism is installed on the clamping handle 2 via the thrust pin 12, the clamping handle 2 moves downward, driving the blade 11 to move downward along the mounting groove 22, thereby cutting the clamping band.

[0028] Example 2 In a preferred embodiment of the present invention, the present invention includes a clamping pliers with padding, comprising jaws 1, a handle 2, a left clamping clamp 3, a right clamping clamp 4, a ratchet tightening mechanism, a clamping band cutting mechanism, and a clamping band slider 5. One end of the jaws 1 is hinged to the handle 2, and the other end is hinged to the left clamping clamp 3 and the right clamping clamp 4 respectively via a main pin 6. The clamping band cutting mechanism includes a blade pressure rod 10 and a blade 11. The blade pressure rod 10 has a cylindrical groove at its bottom, and the blade 11 has a cylinder at its top that matches the cylindrical groove. One end of the blade pressure rod 10 is rotatably connected to the handle 2 via a thrust pin 12, and the other end is rotatably connected to the blade 11.

[0029] The ratchet tightening mechanism includes a central ratchet 9 and a drive assembly for driving the central ratchet 9 to rotate unidirectionally. The drive assembly includes a mounting component 7, a main shaft 8, an escapement pawl 17, and a drive ratchet 18. The mounting component 7 is rotatably connected to one end of the main shaft 8, and the other end of the main shaft 8 can be mounted on the jaws 1 via bearings or other components. The drive ratchet 18 and the central ratchet 9 are respectively mounted on the main shaft 8, and the teeth of the central ratchet 9 are opposite to those of the drive ratchet 18. The central ratchet 9 and the drive ratchet 18 rotate synchronously in the same direction. The outer side of the mounting component 7 is connected to the pressure handle 2 via a drive pressure rod 16. The escapement pawl 17 is rotatably connected to the inner side of the mounting component 7 via a pin, for cooperating with the drive ratchet 18 to achieve unidirectional rotation of the drive ratchet 18.

[0030] The jaw 1 is provided with a positioning groove 13, a strap movement channel 14, a mounting hole, a mounting groove 22, and a slot 15. The mounting hole, mounting groove 22, and slot 15 are respectively connected to the strap movement channel 14. The pressure lug slider 5 may be provided with a positioning block 21, so that the pressure lug slider 5 is T-shaped. The positioning groove 13 is connected to the slot 15 and matches the pressure lug slider 5, and the pressure lug slider 5 protrudes downward from the positioning groove 13. The mounting hole is used to install the central ratchet 9, and the mounting groove 22 is used to place the blade 11.

[0031] The free ends of the left and right clamping clamps 3 and 4 can clamp or open to push the clamping slider 5 to move within the positioning groove 13, thereby clamping the two ear pieces at the head of the clamping ring to the end of the clamping band. The clamping handle 2 is also connected to the mounting component 7 via a driving rod 16, which converts the up-and-down movement of the clamping handle 2 into the rotational movement of the mounting component 7, further driving the central ratchet 9 to rotate unidirectionally, thereby causing the clamping band to move upward along the clamping band movement channel 14. When the clamping band is in place, after the clamping band cutting mechanism is installed on the clamping handle 2 via the thrust pin 12, the clamping handle 2 moves downward, driving the blade 11 to move downward along the mounting groove 22, thereby cutting the clamping band.

[0032] Example 3 In another preferred embodiment of the present invention, the present invention includes a clamping pliers with padding, comprising a jaw 1, a handle 2, a left clamping clamp 3, a right clamping clamp 4, a ratchet tightening mechanism, a clamping band cutting mechanism, and a clamping band slider 5. One end of the jaw 1 is hinged to the handle 2, and the other end is hinged to the left clamping clamp 3 and the right clamping clamp 4 respectively via a main pin 6. A first spring 19 is also provided between the handle ends of the left clamping clamp 3 and the right clamping clamp 4. A second spring 20 is also provided between the handle 2 and the main pin 6. The ratchet tightening mechanism includes a central ratchet 9 and a drive assembly for driving the central ratchet 9 to rotate unidirectionally. The clamping band cutting mechanism includes a blade lever 10 and a blade 11. One end of the blade lever 10 is rotatably connected to the handle 2 via a thrust pin 12, and the other end is rotatably connected to the blade 11.

[0033] The jaw 1 is provided with a positioning groove 13, a strap movement channel 14, a mounting hole, a mounting groove 22, and a slot 15. The mounting hole, mounting groove 22, and slot 15 are respectively connected to the strap movement channel 14. The mounting hole is used to install the central ratchet 9, and the mounting groove 22 is used to place the blade 11.

[0034] The number of the ear-pressing sliders 5 is one, used to be placed in the positioning groove 13, which is connected to the slot 15. The ear-pressing slider 5 matches the positioning groove 13, and the ear-pressing slider 5 protrudes downward from the positioning groove 13. The free ends of the left ear-pressing clamps 3 and the right ear-pressing clamps 4 can be clamped or opened to push one ear-pressing slider 5 to move in the positioning groove 13. After the corresponding ear piece of the clamp ring head is clamped to the end of the clamp band, the ear-pressing slider 5 can be removed and installed in the other direction of the positioning groove 13. The above steps are repeated to achieve the clamping of the other ear piece of the clamp ring head to the end of the clamp band.

[0035] The pressure handle 2 is also connected to the drive assembly via the drive rod 16, which converts the up-and-down movement of the pressure handle 2 into the rotational movement of the drive assembly. The drive assembly can employ conventional techniques in the art, and may include components such as gear sets and a main shaft. The central ratchet 9 is mounted on the main shaft, which also has a one-way bearing. When the drive rod 16 drives the main shaft to rotate via the gear set, when rotating in the permissible direction, the one-way bearing allows the central ratchet 9 to rotate synchronously with the main shaft, thereby driving the belt to move upward along the belt movement channel 14. When the drive rod 16 pushes the gear set to drive the main shaft to rotate, when rotating in the obstructed direction, the rollers or wedges inside the one-way bearing will disengage from the contact surface, causing the inner and outer rings to slide relative to each other, and the central ratchet 9 remains stationary and cannot rotate.

[0036] When the band moves into place, the band cutting mechanism is installed on the pressure handle 2 via the thrust pin 12. The pressure handle 2 moves downward, driving the blade 11 to move downward along the mounting groove 22, thereby cutting the band.

[0037] Example 4 As another preferred embodiment of the present invention, please refer to the appendix to the specification. Figure 1 ~Instruction manual included Figure 3 The present invention includes an installation pliers for a padded clamp, comprising a jaw 1, a handle 2, a left clamp pliers 3, a right clamp pliers 4, a ratchet tightening mechanism, a clamp band cutting mechanism, and a clamp slider 5.

[0038] One end of the jaw 1, i.e., the head of the jaw 1, can be hinged to the handle 2 via a pin, allowing the handle 2 to rotate freely around the pin. The other end of the jaw 1, i.e., the rear end of the jaw 1, can be hinged to the left ear clamp 3 and the right ear clamp 4 via a main pin 6, allowing the left ear clamp 3, the right ear clamp 4, and the jaw 1 to rotate flexibly around the main pin 6. A first spring 19 is also provided between the left ear clamp 3 and the right ear clamp 4. The two ends of the first spring 19 are fixedly connected to the handles of the left ear clamp 3 and the right ear clamp 4, respectively. A second spring 20 is also provided between the handle 2 and the main pin 6. One end of the second spring 20 is fixedly connected to the handle 2, and the other end moves freely or moves within the machined groove range on the upper end of the main pin 6. Refer to the attached instruction manual. Figure 5 The jaw 1 is further provided with a positioning groove 13, a strap movement channel 14, a mounting hole, a mounting groove 22, and a slot 15. The mounting hole, mounting groove 22, and slot 15 are respectively connected to the strap movement channel 14. The positioning groove 13 is connected to the slot 15 and matches the pressure lug slider 5.

[0039] The ratchet tightening mechanism includes a central ratchet 9 and a drive assembly for driving the central ratchet 9 to rotate in one direction. The drive assembly includes a mounting component 7, a main shaft 8, an escapement pawl 17, and a drive ratchet 18. The outer side of the mounting component 7 is connected to the pressure handle 2 via a drive lever 16, which converts the up-and-down movement of the pressure handle 2 into the rotational movement of the mounting component 7. Specifically, the upper end of the drive lever 16 can be connected to the pressure handle 2 via a pin, allowing the drive lever 16 to rotate freely around the pin. The lower end of the drive lever 16 is connected to a cylindrical shaft on the outer side of the mounting component 7, and the cylindrical shaft is fixedly connected to the mounting component 7. The lower end of the drive lever 16 can rotate freely around the cylindrical shaft.

[0040] The mounting component 7, drive lever 16, escape pawl 17, and drive ratchet 18 are arranged in two sets, symmetrically at both ends of the main shaft 8. Specifically, the mounting component 7 is rotatably connected to the main shaft 8, allowing the mounting component 7 to rotate freely around the main shaft 8. The mounting hole is located on the back of the jaw 1, and the drive ratchet 18 on the left and right sides and the central ratchet 9 in the middle are connected to the mounting hole through the main shaft 8 and a key. Each mounting component 7 has three escape pawls 17 arranged circumferentially. Specifically, the escape pawls 17 are rotatably connected to the inside of the mounting component 7 by a pin, allowing the escape pawls 17 to rotate within a certain range around the pin on the inside of the mounting component 7. In cooperation with the drive ratchet 18, the drive ratchet 18 is allowed to roll towards the front end of the jaw 1 and is restricted from rolling towards the rear end of the jaw 1, thus achieving unidirectional rotation of the drive ratchet 18. Furthermore, the teeth of the central ratchet 9 are opposite to those of the drive ratchet 18, and the central ratchet 9 and the drive ratchet 18 rotate synchronously in the same direction, thereby realizing the unidirectional rotation of the central ratchet 9.

[0041] Furthermore, the distance between the central ratchet 9 teeth and the hoop movement channel 14 needs to be coordinated with the hoop. The distance between the tip of the central ratchet 9 teeth and the bottom plane of the hoop movement channel 14 is between x+0.1mm and x+0.5mm, where x is the thickness of the hoop steel plate. This design ensures that the tip of the central ratchet 9 teeth generates sufficient static friction with the black adhesive tape on the outer layer of the hoop, allowing the central ratchet 9 teeth to pull the end of the hoop upwards, while restricting the reverse movement, thus achieving unidirectional movement of the hoop end.

[0042] The clamp cutting mechanism includes a blade pressure rod 10 and a blade 11. The blade pressure rod 10 has a cylindrical groove at its bottom, and the blade 11 has a cylinder at its top that matches the cylindrical groove. The blade pressure rod 10 is rotatably connected to the pressure handle 2 via a thrust pin 12. The cylinder at the upper end of the blade 11 is inserted into the cylindrical groove at the lower end of the blade pressure rod 10 for rotatable connection, and the lower end of the blade 11 is inserted into the mounting groove 22 of the jaw 1.

[0043] The pressure lug slider 5 is a separate component, and there are two of them, one for each side to fit into the positioning groove 13. The pressure lug slider 5 matches the positioning groove 13, and the pressure lug slider 5 protrudes downwards from the positioning groove 13. Preferably, refer to the appendix of the instruction manual. Figure 4 The pressure lug slider 5 is provided with a positioning block 21, and the positioning groove 13 is provided with a groove that matches the positioning block 21. The positioning block 21 can be located at both ends of the pressure lug slider 5. By setting the positioning block 21, the pressure lug slider 5 has an irregular shape structure, and the positioning groove 13 is also an irregular groove.

[0044] The free ends of the left ear clamp 3 and the right ear clamp 4 can clamp or open, and can push the ear clamp slider 5 to move in the positioning groove 13, so as to realize that the two ear pieces of the clamp ring head clamp the end of the clamp band.

[0045] The up-and-down movement of the pressure handle 2 is converted into the rotational movement of the mounting component 7, which further drives the central ratchet 9 to rotate in one direction, thereby causing the hoop to move upward along the hoop movement channel 14. When the hoop moves into position, after the hoop shearing mechanism is installed on the pressure handle 2 through the thrust pin 12, the pressure handle 2 presses down, driving the blade 11 to move downward along the mounting groove 22, thereby achieving hoop shearing.

[0046] Example 5 In another preferred embodiment of the present invention, the present invention includes a method for using the installation pliers with padding clamps described in any of the embodiments 1 to 4, comprising the following steps: Step S1. Pass the clamp through the cable to be tightened and pass the end of the clamp through the clamp ring as required by standard.

[0047] Step S2. Insert the end of the strap into the slot 15 so that the surface of the end of the strap contacts the central ratchet 9 inside the slot 15.

[0048] Step S3. Press the handle 2 up and down, which drives the mounting part 7 to rotate via the drive lever 16. This, in turn, drives the ratchet 18 to rotate via the escape pawl 17, and in turn drives the central ratchet 9 to rotate via the main shaft 8. Because the drive ratchet 18 is restricted by the escape pawl 17, it can only roll towards the front end of the jaws 1 and cannot roll in the opposite direction. Sufficient static friction is generated between the teeth of the central ratchet 9 and the black adhesive tape on the outer layer of the band, allowing the teeth of the central ratchet 9 to just pull the end of the band upwards, while restricting reverse movement, thus achieving unidirectional movement of the band end.

[0049] Among them, the thrust pin 12 of the hoop shearing mechanism cannot be inserted when tightening the end of the hoop to prevent the hoop from being sheared when pressing down the handle 2.

[0050] Step S4. After the hoop is tightened in place, insert the thrust pin 12 and press down the handle 2 for the last time to cut off the end of the hoop. After the end of the hoop is cut off, the thrust pin 12 of the hoop cutting mechanism can be removed at the same time.

[0051] Step S5. Place the ear-pressing slider 5 into the positioning groove 13, clamp the left ear-pressing clamp 3 and the right ear-pressing clamp 4, and clamp the free ends of the left ear-pressing clamp 3 and the right ear-pressing clamp 4 together. Push the ear-pressing slider 5 in so that the two ear pieces at the head of the clamp ring clamp the end of the clamp band.

[0052] Step S6. Since the HB3-20's clamp is made of steel, pressing down the left and right ear pieces cannot be done in one step. It is necessary to use the left ear clamp 3 and the right ear clamp 4 to clamp repeatedly until the ear pieces are formed in place.

[0053] After completing all the actions, remove the installation clamps to complete all four working steps: tightening the clamp, bending the end of the clamp strap, pressing the left and right ear pieces together, and cutting the end of the clamp strap.

[0054] In summary, any other corresponding modifications made by those skilled in the art after reading this invention document, without requiring creative mental effort, based on the technical solutions and concepts of this invention, are all within the scope of protection of this invention.

Claims

1. A type of installation pliers with padded clamps, characterized in that: The device includes jaws (1), a handle (2), a left ear clamp (3), a right ear clamp (4), a ratchet tightening mechanism, a band cutting mechanism, and an ear clamp slider (5); one end of the jaws (1) is hinged to the handle (2), and the other end is hinged to the left ear clamp (3) and the right ear clamp (4) respectively via a main pin (6); the ratchet tightening mechanism includes a central ratchet (9) and a drive assembly for driving the central ratchet (9) to rotate in one direction; the band cutting mechanism includes a blade pressure bar (10) and a blade (11), one end of the blade pressure bar (10) is rotatably connected to the handle (2) via a thrust pin (12), and the other end is rotatably connected to the blade (11); the jaws (1) are provided with a positioning groove (13), a band moving channel (14), and mounting holes, mounting grooves (22), and slots (15) respectively communicating with the band moving channel (14); the positioning groove (13) The clamping handle (2) is connected to the slot (15) and matches the clamping slider (5). The clamping slider (5) protrudes downward from the positioning slot (13). The mounting hole is used to install the central ratchet (9), and the mounting slot (22) is used to place the blade (11). The free ends of the left clamping clamp (3) and the right clamping clamp (4) can clamp or open to push the clamping slider (5) to move in the positioning slot (13) so that the two ear pieces of the clamping ring head clamp the end of the clamping band. The clamping handle (2) is also connected to the driving assembly through the driving pressure rod (16). The up and down movement of the clamping handle (2) drives the central ratchet (9) to rotate in one direction, thereby driving the clamping band to move upward along the clamping band moving channel (14). When the clamping band cutting mechanism is installed on the clamping handle (2) through the thrust pin (12), the clamping handle (2) is pressed down, driving the blade (11) to move downward along the mounting slot (22) to cut the clamping band.

2. The installation pliers with padded clamps according to claim 1, characterized in that: The drive assembly includes a mounting component (7), a main shaft (8), an escapement pawl (17), and a drive ratchet (18); the mounting component (7) is rotatably connected to the main shaft (8); the drive ratchet (18) and the central ratchet (9) are respectively mounted on the main shaft (8), and the tooth direction of the central ratchet (9) is opposite to that of the drive ratchet (18), and the central ratchet (9) and the drive ratchet (18) rotate synchronously in the same direction; the outer side of the mounting component (7) is connected to the pressure handle (2) through a drive pressure rod (16); the escapement pawl (17) is rotatably connected to the inner side of the mounting component (7) through a pin, and is used to cooperate with the drive ratchet (18) to realize the unidirectional rotation of the drive ratchet (18).

3. The installation pliers with padded clamps according to claim 2, characterized in that: The number of mounting parts (7), drive levers (16), escapement pawls (17) and drive ratchet (18) in the ratchet tightening mechanism are two sets, and they are symmetrically arranged at both ends of the main shaft (8).

4. The installation pliers with padded clamps according to claim 2, characterized in that: The distance between the top of the central ratchet (9) tooth and the bottom plane of the hoop moving channel (14) is between x+0.1mm and x+0.5mm, where x is the thickness of the hoop steel plate.

5. The installation pliers with padded clamps according to claim 2, characterized in that: The blade pressure rod (10) has a cylindrical groove at the bottom, and the blade (11) has a cylinder at the top that matches the cylindrical groove.

6. The installation pliers with padded clamps according to claim 2, characterized in that: A first spring (19) is also provided between the left ear clamp (3) and the right ear clamp (4).

7. The installation pliers with padded clamps according to claim 6, characterized in that: A second spring (20) is also provided between the pressure handle (2) and the main pin (6).

8. The installation pliers with padded clamps according to claim 7, characterized in that: The top of the main pin (6) is provided with a machining groove, and one end of the second spring (20) is connected to the pressure handle (2), while the other end is movably disposed in the machining groove.

9. The installation pliers with padded clamps according to claim 2, characterized in that: The pressure ear slider (5) is provided with a positioning block (21), and the positioning groove (13) is provided with a groove that matches the positioning block (21).

10. A method of using a padded clamp installation pliers according to any one of claims 1 to 9, characterized in that: Includes the following steps: Step S1. Thread the clamp through the cable to be tightened and pass the end of the clamp through the clamp ring; Step S2. Insert the end of the band into the slot (15) so that the surface of the end of the band contacts the central ratchet (9) in the slot (15); Step S3. Press the handle (2) up and down, and drive the central ratchet (9) to rotate in one direction through the driving rod (16). The teeth of the central ratchet (9) drive the end of the belt to pull upward. Step S4. After the band is tightened in place, insert the thrust pin (12) and press down the handle (2) to achieve the shearing action at the end of the band; Step S5. Place the ear-pressing slider (5) into the positioning groove (13), clamp the left ear-pressing clamp (3) and the right ear-pressing clamp (4), clamp the free ends of the left ear-pressing clamp (3) and the right ear-pressing clamp (4), push in the ear-pressing slider (5) to clamp the two ear pieces at the head of the clamp ring to the end of the clamp band; Step S6. Use the left ear clamp (3) and the right ear clamp (4) to clamp repeatedly until the ear piece is formed in place.

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