Mounting clamp for padded clamp and using method of mounting clamp

Abstract

The invention relates to the technical field of clamp pliers, in particular to a pair of mounting pliers for a padded clamp and a using method thereof, and the mounting pliers comprise a jaw, a pressing handle, a left lug pressing pliers, a right lug pressing pliers, a ratchet tightening mechanism, a strap shearing mechanism and a lug pressing sliding block; one end of the jaw is hinged with the pressing handle, and the other end is hinged with the left and right ear pressing pliers; the ratchet tightening mechanism comprises a central ratchet and a driving assembly; the strap shearing mechanism comprises a blade pressing rod and a blade which are rotationally connected; a positioning groove, a strap moving channel, a mounting hole, a mounting groove and a notch are formed in the jaw; the lug pressing sliding block is matched with the positioning groove and protrudes out of the positioning groove downwards. The left and right lug pressing pincers push the lug pressing slide block to move in the positioning groove; the pressing handle is connected with the driving assembly through the driving pressing rod to drive the central ratchet wheel to rotate unidirectionally, so that the strap moves upwards along the strap moving channel; when the strap is tightened in place, the pressing handle is pressed downwards, the blade moves downwards, and the strap is cut off. According to the mounting clamp and the using method thereof, operation is easy, and the mounting efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of clamp pliers, in particular to a clamp installation plier for a pad clamp and a use method thereof. BACKGROUND

[0002] In production, the cable needs to be tightened by a pad clamp after being laid. In order to achieve better tightening effect, especially in the field of aviation, the current HB3-20 pad clamp is generally used to tighten the cable. The HB3-20 pad clamp includes a clamp ring and two ear pieces at the head of the clamp ring.

[0003] When installing the clamp, the clamp with a proper length of the clamp ring needs to be selected first, and then the clamp ring is passed through the cable laid on the machine body. Then the end of the clamp ring is passed through the clamp ring from bottom to top, as shown in the accompanying drawings of the specification. Figure 6 After the clamp ring is tightened in the opposite direction of the end of the clamp ring, the clamp ring is folded to make the end of the clamp ring fit in the ring. The remaining length of the end of the clamp ring changes with the diameter of the cable, and is placed in the slot of the ear piece at the front end of the ring. The operator needs to use pliers and other tools to bend the left and right ear pieces to press the end of the clamp ring while tightening the clamp ring. Finally, the excess part of the end of the clamp ring needs to be cut according to the standard requirements, as shown in the accompanying drawings of the specification. Figure 7 The final tightening and installation operation of the cable is completed.

[0004] The above technical solution has the following problems in actual use: the operation is complicated, several tools need to be used for installation, and the manual operation is complicated and inefficient. SUMMARY

[0005] To solve the above technical problems, the present application provides a clamp installation plier for a pad clamp and a use method thereof, which is simple to operate, convenient to use, and can improve the installation efficiency.

[0006] The present application is achieved by adopting the following technical solutions: The utility model provides a kind of installation pincers for band clamp, including jaw, press handle, left ear pincers, right ear pincers, ratchet tightening mechanism, hoop band cutting mechanism and ear pressure slider;The one end of jaw is hinged with press handle, and the other end is hinged with left ear pincers and right ear pincers respectively through main pin;The ratchet tightening mechanism includes central ratchet and driving assembly for driving central ratchet one-way rotation;The hoop band cutting mechanism includes blade press rod and blade, and the one end of blade press rod is rotatably connected with press handle through push pin, and the other end is rotatably connected with blade;Positioning groove, hoop band moving channel and installation hole, installation groove and notch are equipped in jaw respectively;The positioning groove is communicated with notch, and is matched with ear pressure slider, and ear pressure slider protrudes downward in positioning groove;The installation hole is used to install central ratchet, and installation groove is used to place blade;The free end of left ear pincers and right ear pincers can be clamped or opened, for pushing ear pressure slider to move in positioning groove, realize the two ear pieces of hoop ring head to clamp the end of hoop band;Press handle is further connected with driving assembly through driving press rod, and press handle moves up and down, drives central ratchet one-way rotation, to drive hoop band to move upwards along hoop band moving channel;When hoop band cutting mechanism is installed on press handle through push pin, press handle is pressed down, drives blade to move downwards along installation groove, realizes hoop band cutting.

[0007] The driving assembly includes mounting, main shaft, detent jaw and driving ratchet;The mounting is rotatably connected with the main shaft;The driving ratchet and the central ratchet are assembled on the main shaft respectively, and the direction of the teeth of the central ratchet is opposite to that of the driving ratchet, and the central ratchet and the driving ratchet rotate synchronously in the same direction;The outside of the mounting is connected with the press handle through the driving press rod;The detent jaw is rotatably connected to the inside of the mounting through the pin shaft, for cooperating with the driving ratchet to realize one-way rotation of the driving ratchet.

[0008] The number of the mounting, the driving press rod, the detent jaw and the driving ratchet in the ratchet tightening mechanism is two groups respectively, and they are symmetrically arranged at both ends of the main shaft.

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

[0010] The bottom of the blade press rod is provided with a cylindrical groove, and the top of the blade is provided with a cylinder matching the cylindrical groove.

[0011] The first spring is further arranged between the left ear pincers and the right ear pincers.

[0012] The second spring is further arranged between the press handle and the main pin.

[0013] The top end of the main pin is provided with a processing groove, one end of the second spring is connected with the press handle, and the other end is movably arranged in the processing groove.

[0014] The positioning block is arranged on the ear-pressing sliding block, and the groove body matched with the positioning block is arranged on the positioning groove.

[0015] A method for using a mounting pliers for a padded cable clamp, comprising the following steps: Step S1. threading the clamp through the cable to be tightened and threading the clamp end through the clamp ring; Step S2. inserting the clamp end into the slot so that the surface of the clamp end contacts the central ratchet in the slot; Step S3. pressing the pressing handle up and down to drive the central ratchet to rotate unidirectionally, and the central ratchet teeth drive the clamp end to be pulled upward; Step S4. after the clamp is tightened in place, inserting the thrust pin and pressing the pressing handle to realize the cutting action of the clamp end; Step S5. placing the ear-pressing sliding block into the positioning groove, clamping the left ear-pressing pliers and the right ear-pressing pliers, clamping the free ends of the left ear-pressing pliers and the right ear-pressing pliers, and pushing the ear-pressing sliding block to clamp the two ear pieces at the head of the clamp ring; Step S6. repeatedly clamping the left ear-pressing pliers and the right ear-pressing pliers until the ear pieces are shaped in place.

[0016] Compared with the prior art, the beneficial effects of the present application are as follows: 1. The mounting pliers of the present application can complete the tightening of the padded clamp, the bending of the clamp end, the clamping of the left and right ear pieces, and the cutting of the clamp end, especially for the HB3-20 padded clamp, which can complete the above-mentioned working steps at one time, avoiding the difficulty of manual installation of the HB3-20 padded clamp and the need to use various tools during installation, and concentrating all the operation steps in one tool, which not only simplifies the operation, but also improves the production efficiency.

[0017] 2. In the present application, the cooperation of the escapement claw and the driving ratchet can realize the unidirectional movement of the clamp end and prevent its reverse movement.

[0018] 3. The number of mounting pieces, driving pressure rods, escapement claws and driving ratchets is two groups respectively, and they are symmetrically arranged at both ends of the main shaft, which can improve the stability and uniformity of the structure.

[0019] 4. The spacing between the central ratchet teeth and the bottom plane of the clamp moving channel can ensure that the central ratchet teeth just produce enough static friction with the black cloth on the outer layer of the clamp.

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

[0021] 6. The first spring and the second spring are arranged to realize automatic reset and enhance the stability during operation.

[0022] 7. The ear pressing sliding block is provided with a positioning block, and the positioning groove is provided with a groove body matched with the positioning block, so that the positioning groove is a special-shaped groove. Through the structure, the ear pressing sliding block can be stably arranged in the positioning groove and not fall off, can realize good guiding effect, can ensure that the ear pressing sliding block only moves horizontally and does not deflect or tilt, and ensures the ear pressing quality.

[0023] 8. Through the use method of the installation pliers, all four working steps of tightening the entire clamp, bending the end of the clamp belt, pressing the left and right ear pieces, and cutting the end of the clamp belt can be completed, and the operation is simpler. BRIEF DESCRIPTION OF DRAWINGS

[0024] The application will be further described in detail below with reference to the drawings and specific embodiments of the specification, in which: Figure 1 Structure diagram of the application Figure 1 ; Figure 2 Structure diagram of the application Figure 2 ; Figure 3 Structure diagram of the application Figure 3 ; Figure 4 Structure diagram of the application after removing the right ear pressing pliers; Figure 5 Structure diagram of the application in cross section; Figure 6 HB3-20 belt pad clamp installation diagram; Figure 7 HB3-20 belt pad clamp use diagram; Markings in the figure: 1. jaw, 2. pressing handle, 3. left ear pressing pliers, 4. right ear pressing pliers, 5. ear pressing sliding block, 6. main pin, 7. mounting piece, 8. main shaft, 9. central ratchet, 10. blade pressing rod, 11. blade, 12. thrust pin, 13. positioning groove, 14. clamp belt moving channel, 15. slot, 16. driving pressing rod, 17. detent jaw, 18. driving ratchet, 19. first spring, 20. second spring, 21. positioning block, 22. mounting groove. DETAILED DESCRIPTION

[0025] Example 1 As a basic embodiment of the present application, the present application comprises a mounting plier for band cushioned clamp, which comprises a plier head 1, a pressing handle 2, a left ear pressing plier 3, a right ear pressing plier 4, a ratchet tightening mechanism, a band shearing mechanism and an ear pressing slider 5. The plier head 1 is hinged at one end to the pressing handle 2 and at the other end to the left ear pressing plier 3 and the right ear pressing plier 4 through a main pin 6. The ratchet tightening mechanism comprises a central ratchet 9 and a driving assembly for driving the central ratchet 9 to rotate in one direction. The band shearing mechanism comprises a blade pressing rod 10 and a blade 11. The blade pressing rod 10 is rotatably connected at one end to the pressing handle 2 through a thrust pin 12 and at the other end to the blade 11.

[0026] The plier head 1 is provided with a positioning groove 13, a band moving channel 14, a mounting hole, a mounting groove 22 and a slot 15. The mounting hole, the mounting groove 22 and the slot 15 are in communication with the band moving channel 14. The positioning groove 13 is in communication with the slot 15 and is matched with the ear pressing slider 5, which protrudes downward from the positioning groove 13. The mounting hole is used for mounting the central ratchet 9 and the mounting groove 22 is used for placing the blade 11.

[0027] The free ends of the left ear pressing plier 3 and the right ear pressing plier 4 can be clamped or opened to push the ear pressing slider 5 to move in the positioning groove 13, so as to clamp the ends of the band with the two ear pieces of the head of the clamp ring. The pressing handle 2 is further connected to the driving assembly through a driving pressing rod 16, which is used for converting the up-down movement of the pressing handle 2 into the rotational movement of the driving assembly, further driving the central ratchet 9 to rotate in one direction, so as to drive the band to move upward along the band moving channel 14. When the band is moved to the position and the band shearing mechanism is installed on the pressing handle 2 through the thrust pin 12, the pressing handle 2 is moved downward, driving the blade 11 to move downward along the mounting groove 22, so as to shear the band.

[0028] Embodiment 2 As a preferred embodiment of the present application, the present application comprises a mounting plier for band cushioned clamp, which comprises a plier head 1, a pressing handle 2, a left ear pressing plier 3, a right ear pressing plier 4, a ratchet tightening mechanism, a band shearing mechanism and an ear pressing slider 5. The plier head 1 is hinged at one end to the pressing handle 2 and at the other end to the left ear pressing plier 3 and the right ear pressing plier 4 through a main pin 6. The band shearing mechanism comprises a blade pressing rod 10 and a blade 11. The bottom of the blade pressing rod 10 is provided with a cylindrical groove and the top of the blade 11 is provided with a cylinder matched with the cylindrical groove. The blade pressing rod 10 is rotatably connected at one end to the pressing handle 2 through a thrust pin 12 and at the other end to the blade 11.

[0029] The ratchet tightening mechanism comprises a central ratchet 9 and a driving assembly for driving the central ratchet 9 to rotate in one direction. The driving assembly comprises a mounting member 7, a main shaft 8, a detent pawl 17 and a driving ratchet 18. The mounting member 7 is rotatably connected with one end of the main shaft 8, and the other end of the main shaft 8 is arranged on the jaw 1 through a bearing or the like. The driving ratchet 18 and the central ratchet 9 are respectively arranged on the main shaft 8, and the direction of the teeth of the central ratchet 9 is opposite to that of the driving ratchet 18, and the central ratchet 9 and the driving ratchet 18 rotate in the same direction synchronously. The outer side of the mounting member 7 is connected with the pressing handle 2 through a driving pressing rod 16. The detent pawl 17 is rotatably connected with the inner side of the mounting member 7 through a pin, and is used for cooperating with the driving ratchet 18 to realize the one-way rotation of the driving ratchet 18.

[0030] The jaw 1 is provided with a positioning groove 13, a band moving channel 14, a mounting hole, a mounting groove 22 and a slot 15. The mounting hole, the mounting groove 22 and the slot 15 are communicated with the band moving channel 14 respectively. The pressing lug sliding block 5 can be provided with a positioning block 21, so that the whole pressing lug sliding block 5 is in T shape. The positioning groove 13 is communicated with the slot 15 and matched with the pressing lug sliding block 5, and the pressing lug sliding block 5 protrudes downward from the positioning groove 13. The mounting hole is used for mounting the central ratchet 9, and the mounting groove 22 is used for placing the blade 11.

[0031] The free ends of the left pressing lug 3 and the right pressing lug 4 can be clamped or opened, and are used for pushing the pressing lug sliding block 5 to move in the positioning groove 13 to realize the clamping of the band end by the two lug plates of the hoop ring head. The pressing handle 2 is further connected with the mounting member 7 through the driving pressing rod 16, and is used for converting the up-down movement of the pressing handle 2 into the rotary movement of the mounting member 7, further driving the central ratchet 9 to rotate in one direction, so as to drive the band to move upward along the band moving channel 14. When the band is moved to the position, the band cutting mechanism is arranged on the pressing handle 2 through the pushing pin 12, and then the pressing handle 2 moves downward, driving the blade 11 to move downward along the mounting groove 22 to realize the cutting of the band.

[0032] Embodiment 3 As another preferred embodiment of the present application, the present application comprises a mounting clamp for a bandage hoop, comprising a jaw 1, a pressing handle 2, a left pressing lug 3, a right pressing lug 4, a ratchet tightening mechanism, a band cutting mechanism and a pressing lug sliding block 5. One end of the jaw 1 is hingedly connected with the pressing handle 2, and the other end is hingedly connected with the left pressing lug 3 and the right pressing lug 4 through a main pin 6 respectively. Among them, the first spring 19 is further arranged between the handle ends of the left pressing lug 3 and the right pressing lug 4. The second spring 20 is further arranged between the pressing handle 2 and the main pin 6. The ratchet tightening mechanism comprises a central ratchet 9 and a driving assembly for driving the central ratchet 9 to rotate in one direction. The band cutting mechanism comprises a blade pressing rod 10 and a blade 11, one end of the blade pressing rod 10 is rotatably connected with the pressing handle 2 through a pushing pin 12, and the other end is rotatably connected with the blade 11.

[0033] The jaw 1 is provided with a positioning slot 13, a band moving channel 14, a mounting hole, a mounting slot 22 and a slot 15. The mounting hole, the mounting slot 22 and the slot 15 are respectively communicated with the band moving channel 14. The mounting hole is used for mounting the central ratchet 9, and the mounting slot 22 is used for placing the blade 11.

[0034] The number of the ear pressing sliders 5 is one, which is used for being placed into the positioning slot 13 communicated with the slot 15. The ear pressing slider 5 is matched with the positioning slot 13, and the ear pressing slider 5 protrudes downward from the positioning slot 13. The free ends of the left ear pressing forceps 3 and the right ear pressing forceps 4 can be clamped or opened, which are used for pushing one ear pressing slider 5 to move in the positioning slot 13. After the corresponding ear of the head of the band ring is clamped to clamp the end of the band, the ear pressing slider 5 can be removed and installed to the other direction of the positioning slot 13, and the above steps are repeated to clamp the other ear of the head of the band ring to clamp the end of the band.

[0035] The pressing handle 2 is further connected with the driving assembly through the driving pressing rod 16, which is used for converting the up-down movement of the pressing handle 2 into the rotating movement of the driving assembly. The driving assembly can adopt the conventional technical means in the art, for example, can include gear sets and main shafts and the like. The central ratchet 9 is arranged on the main shaft, and a one-way bearing is further arranged on the main shaft. When the driving pressing rod 16 drives the main shaft to rotate through the gear sets, the one-way bearing allows the central ratchet 9 to rotate synchronously with the main shaft in the allowed direction, so as to drive the band to move upward along the band moving channel 14. When the driving pressing rod 16 drives the main shaft to rotate through the gear sets, the one-way bearing allows the central ratchet 9 to remain stationary and unable to rotate in the blocked direction, because the rollers or wedge blocks in the one-way bearing are separated from the contact surface, so that the inner ring and the outer ring slide relative to each other.

[0036] When the band is moved to the position, the band cutting mechanism is installed on the pressing handle 2 through the thrust pin 12, the pressing handle 2 is moved downward, the blade 11 is moved downward along the mounting slot 22, and the band is cut.

[0037] Embodiment 4 As another preferred embodiment of the present application, referring to the drawings attached to the specification Figure 1 The drawings attached to the specification Figure 3 The present application includes a mounting forceps for a pad band, which comprises a jaw 1, a pressing handle 2, left ear pressing forceps 3, right ear pressing forceps 4, a ratchet tightening mechanism, a band cutting mechanism and ear pressing sliders 5.

[0038] The one end of the jaw 1, i.e. the head of the jaw 1, can be hinged with the pressing handle 2 through a pin shaft, so that the pressing handle 2 can freely rotate around the pin shaft. The other end of the jaw 1, i.e. the rear end of the jaw 1, can be hinged with the left ear pressing forceps 3 and the right ear pressing forceps 4 through the main pin 6, so that the left ear pressing forceps 3, the right ear pressing forceps 4 and the jaw 1 can flexibly rotate around the main pin 6. The first spring 19 is further arranged between the left ear pressing forceps 3 and the right ear pressing forceps 4. The two ends of the first spring 19 are respectively fixedly connected with the handle portions of the left ear pressing forceps 3 and the right ear pressing forceps 4. The second spring 20 is further arranged between the pressing handle 2 and the main pin 6. One end of the second spring 20 is fixedly connected with the pressing handle 2, and the other end is freely movable or movable within the range of the machined groove on the upper end of the main pin 6. Referring to the drawings attached to the specification Figure 5 The jaw 1 is further provided with a positioning groove 13, a band moving channel 14, mounting holes, mounting grooves 22 and a notch 15. The mounting holes, the mounting grooves 22 and the notch 15 are respectively communicated with the band moving channel 14. The positioning groove 13 is communicated with the notch 15 and matched with the ear pressing slider 5.

[0039] The ratchet tightening mechanism comprises a central ratchet 9 and a driving assembly for driving the central ratchet 9 to rotate in one direction. The driving assembly comprises mounting pieces 7, a main shaft 8, detent pawls 17 and driving ratchets 18. The outer side of the mounting piece 7 is connected with the pressing handle 2 through a driving pressing rod 16, for converting the up-down movement of the pressing handle 2 into the rotary movement of the mounting piece 7. Specifically, the upper end of the driving pressing rod 16 can be connected with the pressing handle 2 through a pin shaft, so that the driving pressing rod 16 can freely rotate around the pin shaft. The lower end of the driving pressing rod 16 is connected with a cylindrical shaft on the outer side of the mounting piece 7. The cylindrical shaft is fixedly connected with the mounting piece 7, and the lower end of the driving pressing rod 16 can freely rotate around the cylindrical shaft.

[0040] The numbers of the mounting pieces 7, the driving pressing rods 16, the detent pawls 17 and the driving ratchets 18 are respectively two groups, and they are symmetrically arranged at the two ends of the main shaft 8. Specifically, the mounting piece 7 is rotationally connected with the main shaft 8, so that the mounting piece 7 can freely rotate around the main shaft 8. The mounting holes are arranged on the back of the jaw 1. The driving ratchets 18 on the left and right sides and the central ratchet 9 in the middle are connected with the mounting holes through the main shaft 8 and keys. Each mounting piece 7 is provided with three detent pawls 17 which are arranged at intervals in the circumferential direction. Specifically, the detent pawls 17 are rotationally connected with the inner side of the mounting piece 7 through pin shafts, so that the detent pawls 17 can rotate within a certain range around the pin shafts on the inner side of the mounting piece 7. The detent pawls 17 cooperate with the driving ratchets 18 to allow the driving ratchets 18 to roll in the direction of the front end of the jaw 1 and restrict the driving ratchets 18 from rolling in the direction of the rear end of the jaw 1, thereby realizing the one-way rotation of the driving ratchets 18. Further, the direction of the teeth of the central ratchet 9 is opposite to that of the driving ratchets 18. The central ratchet 9 rotates synchronously and in the same direction with the driving ratchets 18, thereby realizing the one-way rotation of the central ratchet 9.

[0041] Further, the distance between the central ratchet 9 and the band moving channel 14 needs to be matched with the band, and the distance between the top of the central ratchet 9 and the bottom plane of the band moving channel 14 is between x+0.1mm and x+0.5mm, wherein x is the thickness of the band steel plate. Through the scheme, the top of the central ratchet 9 can just generate sufficient static friction with the black tape on the outer layer of the band, so that the central ratchet 9 can just pull the end of the band upward, but the reverse movement will be limited, thereby realizing the one-way movement of the end of the band.

[0042] The band cutting mechanism includes a blade pressing rod 10 and a blade 11. The bottom of the blade pressing rod 10 is provided with a cylindrical groove, and the top of the blade 11 is provided with a cylinder matched with the cylindrical groove. The blade pressing rod 10 is rotationally connected with the pressing handle 2 through 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 pressing rod 10 for rotational connection, and the lower end of the blade 11 is inserted into the installation groove 22 of the jaw 1.

[0043] The ear pressing slider 5 is a separate part, and the number is two, which are used to be put into the positioning groove 13 on both sides. The ear pressing slider 5 is matched with the positioning groove 13, and the ear pressing slider 5 protrudes downward from the positioning groove 13. Preferably, referring to the drawings in the specification Figure 4 , the ear pressing slider 5 is provided with a positioning block 21, and the positioning groove 13 is provided with a groove body matched with the positioning block 21. The positioning block 21 can be located at both ends of the ear pressing slider 5. Through the arrangement of the positioning block 21, the ear pressing slider 5 has a special-shaped structure, and the positioning groove 13 is also a special-shaped groove.

[0044] The free ends of the left ear pressing pliers 3 and the right ear pressing pliers 4 can be clamped or opened, and can push the ear pressing slider 5 to move in the positioning groove 13, so as to clamp the end of the band.

[0045] The up-down movement of the pressing handle 2 is converted into the rotary movement of the mounting piece 7, which further drives the central ratchet 9 to rotate in one direction, so as to drive the band to move upward along the band moving channel 14. When the band is moved to the position, the band cutting mechanism is installed on the pressing handle 2 through the thrust pin 12, the pressing handle 2 is pressed downward, the blade 11 is driven to move downward along the installation groove 22, and the band is cut.

[0046] Example 5 As another preferred embodiment of the present application, the present application comprises a method for using the mounting pliers for the bandage with a pad according to any one of the examples 1~4, which comprises the following steps: Step S1. The band is passed through the cable to be tightened, and the end of the band is passed through the bandage ring in a standard required manner.

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

[0048] Step S3. Push the pressure handle 2 up and down, drive the mounting member 7 to rotate through the driving pressure rod 16, drive the ratchet 18 to rotate through the escapement pawl 17, and drive the central ratchet 9 to rotate through the main shaft 8. Since the driving ratchet 18 can only roll in the forward direction of the jaw 1 under the limitation of the escapement pawl 17, it cannot roll in the reverse direction. Since the central ratchet 9 can generate sufficient static friction between the tooth top of the gear teeth and the black tape on the outer layer of the band, the central ratchet 9 can just pull the end of the band upward, but the reverse movement will be limited, thereby realizing the one-way movement of the end of the band.

[0049] Wherein, the push pin 12 of the band cutting mechanism cannot be inserted when the end of the band is tightened, preventing the band from being cut when the pressure handle 2 is pressed down.

[0050] Step S4. After the band is tightened in place, insert the push pin 12 and press the pressure handle 2 for the last time to achieve the cutting action of the end of the band. After the end of the band is cut, the push pin 12 of the band cutting mechanism can be removed.

[0051] Step S5. Put the ear pressing slider 5 into the positioning slot 13, clamp the left ear clamp 3 and the right ear clamp 4, and clamp the free ends of the left ear clamp 3 and the right ear clamp 4, and push the ear pressing slider 5 to clamp the two ear pieces of the head of the clamp ring to the end of the band.

[0052] Step S6. Since the band of the HB3-20 is made of steel, the operation of pressing the left and right ear pieces cannot be completed in one step, and needs to be clamped repeatedly several times with the left ear clamp 3 and the right ear clamp 4 until the ear pieces are shaped in place.

[0053] After all the operations are completed, the installation pliers are removed, and the entire clamping of the clamp, the bending of the end of the band, the pressing of the left and right ear pieces, and the cutting of the end of the band are completed.

[0054] In summary, after reading the present invention document, the ordinary skilled person in the art can make various corresponding transformation schemes according to the technical solutions and technical concepts of the present invention without creative mental effort, which are all within the scope of protection of the present invention.

Claims

1. A mounting plier for a cushioned card holder, characterized by: The utility model relates to a clamp, which comprises a jaw (1), a pressing handle (2), a left ear clamp (3), a right ear clamp (4), a ratchet tightening mechanism, a bandage cutting mechanism and an ear pressing slider (5), wherein the jaw (1) is hingedly connected to the pressing handle (2) at one end and hingedly connected to the left ear clamp (3) and the right ear clamp (4) through a kingpin (6) at the other end; the ratchet tightening mechanism comprises a central ratchet (9) and a driving assembly for driving the central ratchet (9) to rotate in one direction; the bandage cutting mechanism comprises a blade pressing rod (10) and a blade (11), wherein the blade pressing rod (10) is rotatably connected to the pressing handle (2) through a thrust pin (12) at one end and rotatably connected to the blade (11) at the other end; the jaw (1) is provided with a positioning groove (13), a bandage moving channel (14) and mounting holes, mounting grooves (22) and notches (15) in communication with the bandage moving channel (14); the positioning groove (13) is in communication with the notches (15) and matched with the ear pressing slider (5), and the ear pressing slider (5) protrudes downward from the positioning groove (13); the mounting holes are used for mounting the central ratchet (9), and the mounting grooves (22) are used for placing the blade (11); the free ends of the left ear clamp (3) and the right ear clamp (4) can be clamped or opened to push the ear pressing slider (5) to move in the positioning groove (13) and realize clamping of the two ear pieces of the hoop ring head and the end of the bandage; the pressing handle (2) is further connected to the driving assembly through a driving pressing rod (16), and the pressing handle (2) moves up and down to drive the central ratchet (9) to rotate in one direction, thereby driving the bandage to move upward along the bandage moving channel (14); after the bandage cutting mechanism is installed on the pressing handle (2) through the thrust pin (12), the pressing handle (2) is pressed downward to drive the blade (11) to move downward along the mounting grooves (22) and realize cutting of the bandage.

2. The installation pliers for a padded clamping band according to claim 1, characterized in that: The driving assembly comprises a mounting piece (7), a main shaft (8), a detent pawl (17) and a driving ratchet (18), wherein the mounting piece (7) is rotatably connected to the main shaft (8); the driving ratchet (18) and the central ratchet (9) are respectively arranged on the main shaft (8), and the direction of the teeth of the central ratchet (9) is opposite to that of the driving ratchet (18), and the central ratchet (9) and the driving ratchet (18) rotate in the same direction synchronously; the mounting piece (7) is connected to the pressing handle (2) through the driving pressing rod (16) on the outside; the detent pawl (17) is rotatably connected to the inside of the mounting piece (7) through a pin shaft and used for cooperating with the driving ratchet (18) to realize one-way rotation of the driving ratchet (18).

3. The installation tongs for a padded clamping band according to claim 2, characterized in that: The mounting piece (7), the driving pressing rod (16), the detent pawl (17) and the driving ratchet (18) in the ratchet tightening mechanism are respectively two groups and symmetrically arranged at both ends of the main shaft (8).

4. The installation tongs for a padded clamping band according to claim 2, characterized in that: The distance between the tooth top of the central ratchet (9) and the bottom plane of the bandage moving channel (14) is between x+0.1 mm and x+0.5 mm, wherein x is the thickness of the bandage steel plate.

5. The installation tongs for a padded clamping band according to claim 2, characterized in that: The bottom of the blade pressing rod (10) is provided with a cylindrical groove, and the top of the blade (11) is provided with a cylinder matched with the cylindrical groove.

6. The installation tongs for a padded clamping band according to claim 2, characterized in that: The left ear clamp (3) and the right ear clamp (4) are further provided with a first spring (19).

7. The installation tongs for a padded clamping band according to claim 6, characterized in that: The pressing handle (2) and the kingpin (6) are further provided with a second spring (20).

8. The installation tongs for a padded clamping band according to claim 7, characterized in that: The top end of the kingpin (6) is provided with a processing groove, one end of the second spring (20) is connected with the pressing handle (2), and the other end is movably arranged in the processing groove.

9. The installation tongs for a padded clamping band according to claim 2, characterized in that: The ear pressing slider (5) is provided with a positioning block (21), and the positioning groove (13) is provided with a groove body matched with the positioning block (21).

10. The method of using a mounting pliers for a padded clamping band according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: Step S1. Put the cable to be tightened through the hoop, and put the end of the hoop through the clasp ring; Step S2. Insert the end of the hoop into the notch (15), so that the surface of the end of the hoop contacts the central ratchet (9) in the notch (15); Step S3. Press the pressing handle (2) up and down, drive the central ratchet (9) to rotate in one direction through the driving pressing rod (16), and the central ratchet (9) drives the end of the hoop to be pulled up; Step S4. After the hoop is tightened in place, insert the thrust pin (12) and press down the pressing handle (2) to realize the cutting action of the end of the hoop; Step S5. Put the ear pressing slider (5) into the positioning groove (13), and clamp the left ear clamp (3) and the right ear clamp (4), the free ends of the left ear clamp (3) and the right ear clamp (4) are clamped, and the two ear pieces at the head of the clasp ring are clamped by pushing the ear pressing slider (5); Step S6. Repeat clamping with the left ear clamp (3) and the right ear clamp (4) until the ear pieces are shaped in place.

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