Clamp head of clamp pliers and clamp pliers

Abstract

The clamp head has at least two different working states, the clamp head comprises a first clamp head body, a second clamp head body and a rotating shaft, the first clamp head body and the second clamp head body are matched with each other, the first clamp head body and the second clamp head body are provided with a first cutting edge part and a second cutting edge part respectively, and a clamping distance exists between the first cutting edge part and the second cutting edge part; the first plier head and the second plier head are connected through the rotating shaft; the clamping distance or the clamping degree when the first cutting edge part and the second cutting edge part are closed is adjusted through rotation of the rotating shaft, so that switching between the first working state and the second working state is achieved. The rotating shaft is sleeved with a sealing ring to limit movement of the rotating shaft, and therefore the working state of the tong head is fixed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of clamp compression, in particular to a clamp tongs head and clamp tongs. BACKGROUND

[0002] At present, with the vigorous development of domestic infrastructure construction and the increasing use of plastic and metal pipelines due to environmental protection requirements, the commonly used connection methods of plastic and metal pipelines in the connection process are hot melting, welding, clamp connection and the like, compared with the defects of hot melting and welding which consume heat and damage material performance, the clamp connection locking connection method has less leakage points, is safe and reliable, and is very convenient to construct.

[0003] Even if some clamp tongs can have different use states, the switching of different use states thereof is relatively complex. SUMMARY

[0004] To solve the above problems, the utility model provides a technical scheme:

[0005] A clamp tongs head has at least two different working states, including a first working state and a second working state, and comprises a first tongs head and a second tongs head that cooperate with each other and a rotating shaft, the first tongs head and the second tongs head each have a first blade edge portion and a second blade edge portion, and the first blade edge portion and the second blade edge portion have a clamping distance therebetween; the rotating shaft connects the first tongs head and the second tongs head; the clamping distance or the clamping degree when the first blade edge portion and the second blade edge portion are closed is adjusted through rotation of the rotating shaft to switch the first working state and the second working state; wherein a sealing ring is sleeved on the rotating shaft to limit movement of the rotating shaft and thus fix the working state of the tongs head.

[0006] Optionally, the first tongs head and the second tongs head each have a first rotating shaft hole and a second rotating shaft hole for cooperating with the rotating shaft, the opposite ends of the rotating shaft are pressed respectively to make the rotating shaft move axially, so that the sealing ring is located in the first rotating shaft hole or the second rotating shaft hole or is punched out of the first rotating shaft hole or the second rotating shaft hole, and the sealing ring and the first rotating shaft hole or the second rotating shaft hole are in interference fit.

[0007] Optionally, the height of the rotating shaft is greater than the sum of the hole depths of the first rotating shaft hole and the second rotating shaft hole.

[0008] Optionally, the clamp tongs head further comprises a tongs head side plate, the tongs head side plate and the sealing ring are respectively arranged on opposite sides of the clamp tongs head, the rotating shaft comprises a limiting portion, an opening that is adapted to the limiting portion is formed on the tongs head side plate, the opposite ends of the rotating shaft are pressed respectively to make the rotating shaft move axially, so that the limiting portion is limited in the opening or the limiting portion is punched out of the opening.

[0009] Optionally, when the sealing ring is punched out of the first shaft hole or the second shaft hole, the limiting part is limited in the opening, and when the limiting part is punched out of the opening, the sealing ring is located in the first shaft hole or the second shaft hole.

[0010] Optionally, the shaft further comprises an eccentric part, which is arranged between the limiting part and the sealing ring and is connected in the first shaft hole or the second shaft hole.

[0011] Optionally, the eccentric part comprises an eccentric shaft and a concentric shaft, the eccentric shaft is arranged eccentrically according to the limiting part, the concentric shaft is arranged concentrically according to the limiting part, and the eccentric shaft and the concentric shaft are matched with the first shaft hole and the second shaft hole respectively. In other embodiments, the eccentric part can only comprise an eccentric shaft at one end, and does not comprise a concentric shaft.

[0012] Optionally, one end of the shaft is further provided with a baffle, and the baffle protrudes from the first blade part and the second blade part when the jaw is in the first working state or the second working state.

[0013] Optionally, the jaw of the clamp pliers comprises a pair of jaw side plates, the baffle protrudes from the jaw side plates, the baffle comprises at least two connecting pieces connected with each other, and the connecting piece away from the shaft is located on a plane farther away from the plane where the jaw side plates are located. The two connecting pieces can be integrally formed, or can be fixedly connected by welding or the like, or can be detachably connected.

[0014] Optionally, the baffle is provided with an observation window.

[0015] Optionally, the surface of the limiting part is provided with an identification of different working states.

[0016] The utility model also provides a kind of clamp pliers, including any one as described above clamp pliers jaw, and first handle and second handle are hingedly connected, first handle and second handle are connected with first jaw and second jaw respectively.

[0017] Compared with the prior art, the technical scheme has the following beneficial effects:

[0018] The working principle of the technical scheme is that the sealing ring sleeved on the shaft also realizes the positioning of the shaft to fix the working state of the jaw, and the switching between the first working state and the second working state is realized by adjusting the clamping distance or the clamping degree when the first blade part and the second blade part are closed through the rotation of the shaft, without the need for additional positioning structure, the structure is simpler, and the operation is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a clamp pliers perspective view of the utility model embodiment;

[0020] Figure 2 is a perspective view of the clamp pliers of the utility model after removing the side plate of one side plier head of an embodiment of the utility model;

[0021] Figure 3 is an exploded view of the clamp pliers of an embodiment of the utility model;

[0022] Figure 4 is an exploded view of the first plier head and the second plier head of an embodiment of the utility model;

[0023] Figure 5 is an exploded view of the plier head and the rotating shaft of an embodiment of the utility model;

[0024] Figure 6 is a perspective view of the rotating part of an embodiment of the utility model;

[0025] Figure 7 is a partial sectional view of the ratchet assembly and the pulling part of an embodiment of the utility model;

[0026] Figure 8 is a sectional view of the clamp pliers of an embodiment of the utility model in the closed state of the plier opening;

[0027] Figure 9 is a sectional view of the clamp pliers of an embodiment of the utility model in the open state of the plier opening;

[0028] Figure 10 is a sectional view of the clamp pliers of an embodiment of the utility model in the half-open state of the plier opening;

[0029] Figure 11 is a schematic view of the clamp pliers of an embodiment of the utility model before crimping the clamp on the tubular object;

[0030] Figure 12 is a schematic view of the clamp pliers of an embodiment of the utility model after crimping the clamp on the tubular object;

[0031] Figure 13 is another perspective view of the clamp pliers of an embodiment of the utility model;

[0032] Figure 14 is a schematic view of the rotating shaft, the sealing ring and the blocking piece of the clamp pliers of an embodiment of the utility model;

[0033] Figure 15 is a side view of the rotating shaft of the clamp pliers of an embodiment of the utility model;

[0034] Figure 16 is a side view of the clamp pliers of another embodiment of the utility model. DETAILED DESCRIPTION

[0035] In order to further understand the content of the utility model, the utility model is described in detail in combination with the drawings and embodiments.

[0036] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0037] In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, integrally connected, or detachably connected, it can be mechanically connected or electrically connected, or it can be the communication between two elements, it can be directly connected, or indirectly connected through an intermediate medium, and those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0038] In combination with the accompanying Figure 1 to the accompanying Figure 15 The utility model provides a kind of hoop pliers head, hoop pliers head has at least two different working states, including first working state and second working state, hoop pliers head includes: mutually matched first jaw 4 and second jaw 5 and pivot 7, first jaw and second jaw have first blade edge portion 42 and second blade edge portion 53 respectively, first blade edge portion and second blade edge portion have clamping distance between them;Pivot, first jaw and second jaw are connected by pivot;The clamping distance is adjusted by the rotation of pivot to realize the switching of first working state and second working state;Wherein, sealing ring 73 is sleeved on pivot to limit the movement of pivot to realize the fixation of the working state of jaw.

[0039] First working state and second working state can be respectively hoop compression, hoop shearing these two working states, but the utility model does not make any limitation to this, and other embodiments can also be other working states.For example: first working state or second working state can also be to avoid when the jaw between first blade edge portion 42 and second blade edge portion 53 is too large after long-term use, the clamping distance is adjusted by pivot, or third working state can also be set, that is, in addition to hoop compression, hoop shearing these two working states, third working state can also be set to adjust the clamping distance to slow down and avoid long-term use to cause clamping distance to be too large.

[0040] Clamping distance refers to the distance between first blade edge portion and second blade edge portion in jaw closed state or clamping, or it can also be said that the shortest distance that first blade edge portion and second blade edge portion can realize.The switching of different working states is realized by changing clamping distance, for example, in first working state, clamping distance is 0 or very close to 0, in second working state, clamping distance is not 0, and vice versa;Or, in first working state, clamping distance is 1mm-10mm, in second working state, clamping distance is 12mm-50mm.

[0041] In another embodiment, the clamping distance is 0 or very close to 0 in both the first working state and the second working state, but the first blade portion and the second blade portion exert different forces on the clamped clamp, that is, the clamping degree when the first blade portion and the second blade portion are closed is different, so the switching between different working states can also be realized by changing the clamping degree when the first blade portion and the second blade portion are closed.

[0042] In the embodiment, the rotating shaft 7 comprises a limiting portion 71 and an eccentric portion 72, and the clamp plier head further comprises a plier head side plate 3, one of the plier head side plates 3 is provided with an opening 31 matched with the limiting portion 71, the limiting portion 71 is located in the opening 31, and the first rotating shaft hole and the second rotating shaft hole are respectively provided in the first hinge portion 41 and the second hinge portion 52, and the eccentric portion 72 is connected in the first rotating shaft hole and the second rotating shaft hole. Figure 5 As shown in the accompanying drawings, the limiting portion 71 is in the shape of a square shaft, and the opening 31 in one of the plier head side plates 3 is matched with the limiting portion 71, but the shape of the limiting portion and the opening 31 matched with the limiting portion is not limited in the utility model, and in other embodiments, the shape of the limiting portion and the opening 31 in a certain cross section is a shape with edges and corners.

[0043] The plier head side plates 3 and the sealing ring 73 are respectively arranged on opposite sides of the clamp plier head, the eccentric portion is arranged between the limiting portion and the sealing ring, the limiting portion is limited in the opening or the limiting portion is out of the opening by pressing the opposite ends of the rotating shaft to make the rotating shaft move axially, and the sealing ring is located in the first rotating shaft hole or the second rotating shaft hole or out of the first rotating shaft hole or the second rotating shaft hole. When the sealing ring is out of the first rotating shaft hole or the second rotating shaft hole, the limiting portion is limited in the opening, and when the limiting portion is out of the opening, the sealing ring is located in the first rotating shaft hole or the second rotating shaft hole.

[0044] In order to fix, the sealing ring can be arranged in the limiting groove on the outer circumferential surface of the rotating shaft, and in other embodiments, the sealing ring can be directly bonded on the rotating shaft.

[0045] The sealing ring and the first rotating shaft hole or the second rotating shaft hole are in interference fit.

[0046] In the embodiment, the height of the rotating shaft is greater than the sum of the hole depths of the first rotating shaft hole and the second rotating shaft hole.

[0047] In the embodiment, the eccentric portion comprises an eccentric shaft 721 and a concentric shaft 722, the eccentric shaft is arranged eccentrically according to the limiting portion, that is, the rotation center axis of the eccentric shaft and the rotation center axis of the limiting portion do not coincide, the concentric shaft is arranged concentrically with the limiting portion, that is, the rotation center axis of the concentric shaft and the rotation center axis of the limiting portion coincide, and the eccentric shaft and the concentric shaft are matched with the first rotating shaft hole and the second rotating shaft hole respectively.

[0048] In actual operation, during normal use of the clamp pliers, the limiting part restricts the rotation of the shaft within the opening. The sealing ring, due to its interference fit with the first or second shaft hole, abuts against it, limiting the axial movement of the shaft. Therefore, during normal use, there is no change in the clamping distance or degree of clamping. When the clamp pliers need to be adjusted, pressing the end of the shaft with the sealing ring causes axial movement, allowing the limiting part to move out of the opening. Due to the elasticity of the sealing ring, it can also be positioned within the first or second shaft hole, allowing the shaft to rotate. By rotating the shaft to a certain angle, such as 180 degrees, the working state can be changed. After the working state change is complete, pressing the end of the shaft with the limiting part again confines the limiting part within the opening, and the sealing ring moves out of the first or second shaft hole, thus re-fixing the clamp.

[0049] In this embodiment, a baffle 74 is also provided at one end of the rotating shaft. The baffle can rotate with the rotation of the rotating shaft. When the pliers are in the first working state or the second working state, the baffle protrudes from the first cutting edge, the second cutting edge, or the side plate of the pliers. For example, it can be configured such that when the pliers are in the cutting working state, the baffle protrudes from the first cutting edge, the second cutting edge, or the side plate of the pliers. In this way, the protruding baffle will prevent the user from pressing the clamp, thereby protecting the clamp from being cut and damaged. Figure 11 and Figure 12 As shown, when the clamp pliers are used to crimp clamps, the clamp and the tubular object it secures are perpendicular to the plane of the paper. Due to the protruding baffle, the baffle blocks the clamp or the tubular object it secures, thus affecting the crimping and providing protection. However, if shearing is required at this time, the tubular object secured by the clamp is parallel to the plane of the paper and will not affect the shearing of the clamp. In another working state, the baffle may not protrude from the first or second cutting edge, or it may not protrude from the side plate of the pliers head.

[0050] One end of the baffle can also be provided with an observation window, which facilitates the observation of the shearing or pressing of the clamp.

[0051] Alternatively, for ease of operation, the baffle includes at least two interconnected connecting pieces, with the plane of the connecting piece furthest from the pivot point further away from the plane of the pliers head side plate. The two connecting pieces can be integrally formed.

[0052] In another implementation, the baffle may not be provided; instead, an indicator may be provided at a certain position on the jaws, such as the surface of the limit block, to indicate the current working state.

[0053] Further combine with the appendix Figure 1 To be continued Figure 15The utility model also provides a kind of clamp pliers, including fixed handle 1 and movable handle 2, fixed handle 1 is connected with the side plate 3 of jaw, first jaw 4, second jaw 5 and rotating part 6 are arranged between side plate 3 of jaw, first jaw 1 is connected with second jaw 2 by pivot 7, first jaw 1 and second jaw 2 are connected with first elastic member 10, rotating part 6 includes positioning portion 61 and cam portion 62, one side of positioning portion 61 or cam portion 62 is provided with one-way anti-back shaft 12, movable handle 2 is connected with puller 8, puller 8 is provided with ratchet assembly 9, positioning portion 61 is connected with ratchet assembly 9, second elastic member 11 is connected between puller 8 and side plate 3 of jaw, first jaw 4 includes first blade mouth portion 42, second jaw 5 includes action portion 51 and second blade mouth portion 53, first blade mouth portion 42 and second blade mouth portion 53 form a jaw, cam portion 62 and action portion 51 are pressed each other to drive the interval of first blade mouth portion 42 and second blade mouth portion 53 to reduce or expand.

[0054] In the above embodiment, the side plate 3 of jaw is provided with two pieces, and the two pieces of side plate 3 of jaw are connected to the fixed handle 1; in another embodiment, the side plate 3 of jaw and the fixed handle 1 can also be the same component.

[0055] In the above embodiment, the first elastic member 10 and the second elastic member 11 are both tension springs; the first elastic member 10 is used to pull the second jaw 5 to open the jaw of the first jaw 4 and the second jaw 5, and the second elastic member 11 is used to pull the puller 8 to reset the puller 8.

[0056] In the above embodiment, the puller 8 is connected to the positioning portion 61 of the rotating part 6 through the ratchet assembly 9, so that the puller 8 can only drive the rotating part 6 to rotate when the movable handle 2 is pressed, and the movable handle 2 cannot drive the rotating part 6 to rotate when the second elastic member 11 resets.

[0057] In the present embodiment, a rotating hole 81 is formed in the puller 8, an inner wall of the rotating hole 81 is provided with an inner groove 82, the ratchet assembly 9 includes a gear ring 91, a pawl 92 and a pawl reset member 93, the pawl reset member 93 and the pawl 92 are located in the inner groove 82, one end of the pawl reset member 93 abuts against the side wall of the inner groove 82, the other end of the pawl reset member 93 abuts against the pawl 92, the gear ring 91 is connected in the rotating hole 81, and the pawl 92 cooperates with the outer teeth of the gear ring 91.

[0058] In the present embodiment, a positioning hole 94 is formed in the gear ring 91, and the positioning portion 61 is connected in the positioning hole 94.

[0059] In the above embodiment, the lever 8 is connected to the rotating member 6 by means of a ratchet assembly 9, which is structured in such a way that the lever 8 can only rotate the rotating member 6 when the lever 8 is rotated towards the fixed handle 1, and the rotating angle of the rotating member 6 is related to the pressing degree of the movable handle 2.

[0060] In the present embodiment, the positioning portion 61 extends outwardly to form a first shaft portion 63, and the cam portion 62 extends outwardly to form a second shaft portion 64, the first shaft portion 63 and the second shaft portion 64 are respectively arranged in the side plate 3 of the plier head, the one-way stop bearing 12 is arranged between the first shaft portion 63 and the side plate 3 of the plier head, and the ball bearing 13 is arranged between the second shaft portion 64 and the side plate 3 of the plier head.

[0061] In the above embodiment, the one-way stop bearing 12 prevents the rotating member 6 from back-off, and the ball bearing 13 reduces the friction force when the rotating member 6 rotates, and the one-way stop bearing 12 and the ball bearing 13 are respectively fixed on the side plates 3 of the plier head.

[0062] In the present embodiment, the outer side of the one-way stop bearing 12 and the outer side of the ball bearing 13 are respectively provided with a snap spring, so as to ensure that the rotating member 6 is stably connected to the side plate 3 of the plier head.

[0063] In the present embodiment, the first plier head 4 is provided with a first hinge portion 41, and the second plier head 5 is provided with a second hinge portion 52, and the rotating shaft 7 is connected to the first hinge portion 41 and the second hinge portion 52.

[0064] In the present embodiment, the first plier head 4 is provided with a first hanging hole 43 at the end away from the first blade portion 42, the second hinge portion 52 and the acting portion 51 are provided with a second hanging hole 54, and the two ends of the first elastic member 10 are respectively connected to the first hanging hole 43 and the second hanging hole 54.

[0065] In the present embodiment, the lever 8 is provided with a third hanging hole 83, one of the side plates 3 of the plier head is provided with a fourth hanging hole 32, and the two ends of the second elastic member 11 are respectively connected to the third hanging hole 83 and the fourth hanging hole 32; in another embodiment, one end of the second elastic member 11 is connected to the third hanging hole 83 of the lever 8, and the other end of the second elastic member 11 can be connected to another hanging hole of the first plier head 4.

[0066] In the present embodiment, the side of the acting portion 51 close to the cam portion 62 is arc-shaped, and the outer circumferential surface of the cam portion 62 comprises a reset surface and a continuous arc surface.

[0067] In the above embodiment, the arc surface of the acting portion 51 and the continuous arc surface of the cam portion 62 make the action of the clamp plier smooth when pressing. As shown in the attached Figure 8 When the highest point of the outermost arc surface of the cam portion 62 is in contact with the arc surface of the acting portion 51, the plier opening between the second plier head 5 and the first plier head 4 is close to the closed state; as shown in the attachedFigure 9 As shown, when the reset surface of the cam portion 62 is in contact with the arc surface of the acting portion 51, the jaw between the second jaw 5 and the first jaw 4 is in a fully open state; as shown in FIG. 4, the jaw between the second jaw 5 and the first jaw 4 is in a half open state. Figure 10 As shown, when the reset surface of the cam portion 62 is in contact with the arc surface of the acting portion 51, the jaw between the second jaw 5 and the first jaw 4 is in a fully open state; as shown in FIG. 4, the jaw between the second jaw 5 and the first jaw 4 is in a half open state.

[0068] As shown, when the reset surface of the cam portion 62 is in contact with the arc surface of the acting portion 51, the jaw between the second jaw 5 and the first jaw 4 is in a fully open state; as shown in FIG. 4, the jaw between the second jaw 5 and the first jaw 4 is in a half open state. Figure 11 As shown, when the reset surface of the cam portion 62 is in contact with the arc surface of the acting portion 51, the jaw between the second jaw 5 and the first jaw 4 is in a fully open state; as shown in FIG. 4, the jaw between the second jaw 5 and the first jaw 4 is in a half open state. Figure 12 As shown, when the reset surface of the cam portion 62 is in contact with the arc surface of the acting portion 51, the jaw between the second jaw 5 and the first jaw 4 is in a fully open state; as shown in FIG. 4, the jaw between the second jaw 5 and the first jaw 4 is in a half open state. Figure 11 As shown, when the reset surface of the cam portion 62 is in contact with the arc surface of the acting portion 51, the jaw between the second jaw 5 and the first jaw 4 is in a fully open state; as shown in FIG. 4, the jaw between the second jaw 5 and the first jaw 4 is in a half open state. Figure 12 As shown, when the reset surface of the cam portion 62 is in contact with the arc surface of the acting portion 51, the jaw between the second jaw 5 and the first jaw 4 is in a fully open state; as shown in FIG. 4, the jaw between the second jaw 5 and the first jaw 4 is in a half open state.

[0069] As shown, when the reset surface of the cam portion 62 is in contact with the arc surface of the acting portion 51, the jaw between the second jaw 5 and the first jaw 4 is in a fully open state; as shown in FIG. 4, the jaw between the second jaw 5 and the first jaw 4 is in a half open state. Figure 16 As shown, when the reset surface of the cam portion 62 is in contact with the arc surface of the acting portion 51, the jaw between the second jaw 5 and the first jaw 4 is in a fully open state; as shown in FIG. 4, the jaw between the second jaw 5 and the first jaw 4 is in a half open state.

[0070] Although the fixed jaw handle 1, the movable jaw handle 2, the rotating member 6, the pulling member 8 and other structures used in cooperation with the jaws are used in the above embodiments, the utility model is not limited thereto, and any other structure of the jaw handle on the market can be used, such as the jaw handle and related structures in the Chinese utility model patent CN207710606U.

[0071] The utility model and its embodiments are described above, and the description is not limited. The embodiments shown in the drawings are only one of the embodiments of the utility model, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by the utility model, without departing from the creative purpose of the utility model, similar structure and embodiments can be designed without creativity, which should belong to the protection scope of the utility model.

Claims

1. A jaw of a clamp plier, characterized in that, The clamp pliers head has at least two different working states, including a first working state and a second working state, and the clamp pliers head comprises: a first jaw and a second jaw matched with each other, each having a first blade portion and a second blade portion, and having a clamping distance between the first blade portion and the second blade portion; a rotating shaft, the first jaw and the second jaw being connected through the rotating shaft; the first working state and the second working state being switched by adjusting the clamping distance or the clamping degree when the first blade portion and the second blade portion are closed through rotation of the rotating shaft; wherein a sealing ring is sleeved on the rotating shaft to limit the movement of the rotating shaft so as to realize the fixation of the working state of the jaw.

2. The collet chuck jaw of claim 1 wherein, The first jaw and the second jaw each have a first rotating shaft hole and a second rotating shaft hole for cooperating with the rotating shaft, and the sealing ring is located in or out of the first rotating shaft hole or the second rotating shaft hole by pressing the opposite ends of the rotating shaft to make the rotating shaft move axially, and the sealing ring is in interference fit with the first rotating shaft hole or the second rotating shaft hole.

3. A collet wrench head according to claim 2, wherein The height of the rotating shaft is greater than the sum of the hole depths of the first rotating shaft hole and the second rotating shaft hole.

4. The collet chuck jaw of claim 3 wherein, The clamp pliers head further comprises jaw side plates, the jaw side plates and the sealing ring being respectively arranged on opposite sides of the clamp pliers head, the rotating shaft comprising a limiting portion, and the jaw side plates being provided with openings adapted to the limiting portion, the limiting portion being limited in the openings or out of the openings by pressing the opposite ends of the rotating shaft to make the rotating shaft move axially.

5. A collet wrench head according to claim 4, wherein When the sealing ring is out of the first rotating shaft hole or the second rotating shaft hole, the limiting portion is limited in the openings, and when the limiting portion is out of the openings, the sealing ring is in the first rotating shaft hole or the second rotating shaft hole.

6. A collet chuck jaw according to claim 5, wherein The rotating shaft further comprises an eccentric portion, the eccentric portion being arranged between the limiting portion and the sealing ring, and the eccentric portion being connected in the first rotating shaft hole or the second rotating shaft hole.

7. A collet chuck jaw according to claim 6, wherein The eccentric portion comprises an eccentric shaft and a concentric shaft, the eccentric shaft being arranged eccentrically according to the limiting portion, and the concentric shaft being arranged concentrically with the limiting portion, the eccentric shaft and the concentric shaft being matched with the first rotating shaft hole and the second rotating shaft hole respectively.

8. A jaw of a banding tool according to any one of claims 1 to 7, wherein One end of the rotating shaft is further provided with a baffle, the baffle being protruded from the first blade portion and the second blade portion when the jaw is in the first working state or the second working state.

9. A collet chuck jaw according to claim 8, wherein The clamp pliers head comprises a pair of jaw side plates, the baffle being protruded from the jaw side plates, and the baffle being provided with an observation window.

10. A clamp wrench characterized by comprising: comprises: a clamp pliers head according to any one of claims 1 to 9, and a first handle and a second handle hinged with each other, the first handle and the second handle being connected with the first jaw and the second jaw respectively.

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