Hoop pliers

Abstract

The clamp pliers comprise a first pliers body, a second pliers body, a rotary knob assembly and a locking assembly. The first clamp body is rotationally connected with the second clamp body; a clamping groove is formed in the outer side, deviating from the jaw end of the second plier body, of the jaw end of the first plier body, and a wire can be clamped into the clamping groove. The knob assembly is rotationally connected to the jaw end of the second clamp body, and the locking assembly is arranged at the jaw end of the second clamp body. The knob assembly is clamped with the locking assembly in a one-way mode and can rotate relative to the second clamp body in a one-way mode. The wire can be connected with the rotary knob assembly, and tightening and locking are achieved after the rotary knob assembly rotates in one direction. By controlling the output end of the locking assembly, the knob assembly which rotates in one direction can be unlocked and loosened. According to the device and the method, an adaptive hoop can be manufactured on site without measurement, and the hoop can be locked.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hoop manufacturing, in particular to a hoop pliers. BACKGROUND

[0002] In the field of pipeline connection and sealing, the conventional locking scheme usually needs to configure special hoops and matching locking tools to achieve reliable fixation. Specifically, the technical implementation includes the following steps: first, select the corresponding specification of finished hoop according to the outer diameter size of the pipeline; second, use the special tightening tool of the hoop (such as worm gear wrench, spring pliers, etc.) to apply radial locking force to the hoop, so that the hoop and the pipeline form an interference fit, thereby achieving sealing and connection function.

[0003] However, such scheme has significant technical limitations, poor multi-specification adaptability: multiple sizes of hoops need to be pre-equipped for pipelines of different outer diameters, resulting in high complexity of inventory management and increased cost; strong measurement dependence: when the diameter of the pipeline is unknown, the accurate size must be obtained by using measuring tools such as calipers before the hoop can be selected and matched, which is low in efficiency of on-site operation; tool specialization limitation: the special locking tool is deeply bound with the specific hoop structure, and in narrow space or emergency maintenance scene, the installation may fail due to lack of tools.

[0004] Although there are attempts to improve single problems in the current technology (such as adjustable hoop design), the coordination conflicts between multi-specification adaptability, measurement-free rapid installation and tool universality have not been systematically solved. Therefore, an integrated solution is needed to break through the bottleneck of the existing technology. CONTENT OF THE UTILITY MODEL

[0005] The embodiment of the present application provides a hoop pliers, which solves the technical problem of coordination conflicts between multi-specification adaptability, measurement-free rapid installation and tool universality in the prior art, and realizes on-site manufacturing of adaptive hoops without measurement and locking of the hoops.

[0006] The embodiment of the utility model provides a hoop pliers, it includes first pliers body, second pliers body, knob assembly and locking assembly, the first pliers body and the second pliers body are rotationally connected, the mouth end of the first pliers body is opened with the card slot on the outside of the mouth end of the second pliers body, and the wire material can be clamped into the card slot, the knob assembly is rotationally connected in the mouth end of the second pliers body, and the locking assembly is arranged in the mouth end of the second pliers body, the knob assembly and the locking assembly are one-way clamped, and can rotate one-way relative to the second pliers body, the wire material can be connected with the knob assembly, and after one-way rotation of the knob assembly, locking is realized, by controlling the output end of the locking assembly, the knob assembly after one-way rotation can be unlocked and loosened.

[0007] With reference to the first aspect, in a possible implementation manner, the knob assembly is provided with a through hole in a radial direction of each of the two end portions of the second jaw body, and the wire can pass through the through hole.

[0008] With reference to the first aspect, in a possible implementation manner, the clamping groove has a semicircular structure or a U-shaped structure in cross section.

[0009] With reference to the first aspect, in a possible implementation manner, the knob assembly comprises a rotating column and a ratchet wheel; the rotating column is fixedly connected with the ratchet wheel as a whole, and the outer side of the rotating column is rotationally connected with the jaw end of the second jaw body; and the output end of the locking assembly is unidirectionally clamped with the ratchet teeth of the ratchet wheel.

[0010] With reference to the first aspect, in a possible implementation manner, the knob assembly further comprises a rotating rod; the rotating rod is fixedly connected with the end portion of the rotating column.

[0011] With reference to the first aspect, in a possible implementation manner, the locking assembly comprises a pressing rod and an elastic member; the pressing rod is rotationally connected with the jaw end of the second jaw body, and one end of the pressing rod close to the ratchet wheel is unidirectionally clamped with the ratchet teeth of the ratchet wheel; and the elastic member is arranged between the jaw end of the second jaw body and the pressing rod, and can always make the one end of the pressing rod close to the ratchet wheel abut against the ratchet wheel when the one end of the pressing rod away from the ratchet wheel is not subjected to force.

[0012] With reference to the first aspect, in a possible implementation manner, the jaw end of the second jaw body is provided with a mounting slot; and the ratchet wheel and the locking assembly are mounted in the mounting slot.

[0013] With reference to the first aspect, in a possible implementation manner, the inner side of the pressing rod is provided with a reserved slot; and the elastic member is mounted in the reserved slot.

[0014] The one or more technical solutions provided in the embodiments of the utility model have at least the following technical effects or advantages:

[0015] The utility model discloses a first jaw body, second jaw body, knob assembly and locking assembly are adopted, through setting the clamping groove at the jaw end of the first jaw body, can with the clamping groove as the reference the wire material is bent into the U shape, and the wire material that is bent into the U shape can be wound at the pipe opening that needs to be fastened, and the wire material end after winding can be connected on the knob assembly, through rotating knob assembly, under the one -way clamping effect of locking assembly, can through the friction synchronous drive wire material and tighten, through the first jaw body and the second jaw body are tightly held, can open the jaw, further realize the tightening action of wire material, can continue to hold the first jaw body and the second jaw body tightly, and the pincers are with the jaw clamping groove as the center, and turn over forward, and wire material is bent, can fix the wire material that is tightened, finally, through the control locking assembly, make knob assembly no longer be clamped effect of locking assembly, and knob assembly is unlocked, and can conveniently take down the wire material after tightening from knob assembly, at this moment, the clamp hoop at the pipe opening has also been made and fastened, effectively solved the technical problem of poor multi -specification adaptability, measurement -free quick installation and tool universality between the synergic contradiction, realized the clamp hoop that can be made on -the -spot without measurement and lock tightly. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, below will be to the utility model embodiments or prior art description needed to use the drawing briefly introduced, obviously, the drawing in the following description is some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.

[0017] Figure 1 It is the axonometric drawing of the clamp hoop provided in the embodiments of the application;

[0018] Figure 2 It is the top view in Figure 1 ;

[0019] Figure 3 It is the sectional view of A-A direction in Figure 2 ;

[0020] Figure 4 It is the local enlarged view of B region in Figure 3 ;

[0021] Figure 5 It is the structural schematic view when wire material is placed in the clamping groove;

[0022] Figure 6 It is the structural schematic view after wire material is pressed in the arrow direction in Figure 5 ;

[0023] Figure 7 It is the structure schematic view when the wire material is fixed; Figure 6A schematic diagram of the structure when the wire is wrapped around the pipe interface once and passes through the through hole;

[0024] Figure 8 To be Figure 7 A schematic diagram of the structure when the knob assembly in the middle is rotated clockwise to tighten and lock the wire;

[0025] Figure 9 To be Figure 8 A schematic diagram of the structure when the first and second clamps are tightly gripping each other;

[0026] Figure 10 To hold tightly Figure 9 A schematic diagram of the structure when the first and second clamping bodies are flipped forward as a whole;

[0027] Figure 11 This is a schematic diagram of the structure after the clamp has been shaped and trimmed.

[0028] Icons: 1-First clamp body; 11-Slot; 2-Second clamp body; 21-Mounting slot; 3-Knob assembly; 31-Through hole; 32-Rotating column; 33-Ratchet; 34-Rotating rod; 4-Locking assembly; 41-Pressing rod; 42-Elastic element; 5-Wire. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0030] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In addition, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0031] Referring to Figure 1The utility model discloses a kind of clamp pincers, including first pincers 1, second pincers 2, knob assembly 3 and locking assembly 4;First pincers 1 and second pincers 2 are rotatably connected;The outside of the mouth end of first pincers 1, which is away from the mouth end of second pincers 2, is provided with a clamping groove 11, and wire 5 can be clamped into clamping groove 11;Knob assembly 3 is rotatably connected to the mouth end of second pincers 2, and locking assembly 4 is arranged on the mouth end of second pincers 2;Knob assembly 3 is unidirectionally clamped with locking assembly 4, and can be unidirectionally rotated relative to second pincers 2;Wire 5 can be connected with knob assembly 3, and after the unidirectional rotation of knob assembly 3, it is realized to be tightened and locked;By controlling the output end of locking assembly 4, the knob assembly 3 after unidirectional rotation can be unlocked and loosened.

[0032] Referring to Figure 1 , Figure 2Both ends of the knob assembly 3 extending from the second clamp 2 have through holes 31 along their radial direction, through which the wire 5 can pass. Specifically, in this embodiment, the knob assembly 3 has two through holes 31, allowing the two ends of the U-shaped wire 5 to pass through these two through holes 31. Subsequently, by rotating and tightening the knob assembly 3, the wire 5 bends and wraps around the knob assembly 3, and is fixed by friction. In this embodiment, the structure is not limited to using through holes 31; an annular groove can also be formed on the outside of the knob assembly 3, and the ends of the wire 5 can be wound around the annular groove. By rotating the knob assembly 3, the wire 5 can also be tightened by the friction between the annular groove and the wire 5.

[0033] Reference Figure 1 , Figure 3 The cross-section of the slot 11 is a semi-circular or U-shaped structure. Specifically, in this embodiment, the cross-section of the slot 11 can be designed as a semi-circular or U-shaped structure, which can be determined according to the outer diameter of the wire 5 to be clamped.

[0034] Reference Figure 1 , Figure 3 , Figure 4 The knob assembly 3 includes a rotating post 32 and a ratchet 33; the rotating post 32 and the ratchet 33 are fixedly connected as a whole, and the outer side of the rotating post 32 is rotatably connected to the jaw end of the second clamping body 2; the output end of the locking assembly 4 can be unidirectionally engaged with the ratchet teeth of the ratchet 33. Specifically, in this embodiment, the knob assembly 3 includes a rotating post 32 and a ratchet 33, the ratchet 33 is fixedly connected to the middle part of the rotating post 32 or one end of the rotating post 32, and is formed as a whole with the rotating post 32. Specifically, the locking assembly 4 can unidirectionally engage the ratchet 33, thereby achieving unidirectional engagement of the knob assembly 3.

[0035] Reference Figures 1-4 The knob assembly 3 also includes a rotating rod 34; the rotating rod 34 is fixedly connected to the end of the rotating column 32. Specifically, in order to make it easier and less strenuous to turn the rotating column 32, a rotating rod 34 is further fixedly connected to the end of the rotating column 32, that is, the rotating column 32 can be rotated by turning the rotating rod 34.

[0036] Reference Figure 1 , Figure 4, the locking assembly 4 comprises a pressing rod 41 and an elastic piece 42; the pressing rod 41 is rotationally connected to the jaw end of the second jaw body 2, and one end of the pressing rod 41 close to the ratchet wheel 33 is unidirectionally clamped between the ratchet teeth of the ratchet wheel 33; the elastic piece 42 is arranged between the jaw end of the second jaw body 2 and the pressing rod 41, and can always abut against the one end of the pressing rod 41 close to the ratchet wheel 33 when the one end of the pressing rod 41 away from the ratchet wheel 33 is not subjected to force. In the embodiment of the application, the locking assembly 4 comprises the pressing rod 41 and the elastic piece 42, the pressing rod 41 is rotationally connected to the jaw end of the second jaw body 2 through a short shaft, at this time, the elastic piece 42 is selected as a U-shaped elastic piece, by arranging the elastic piece 42, when the one end of the pressing rod 41 away from the ratchet wheel 33 is pressed, the elastic piece 42 is compressed, so that the one end of the pressing rod 41 close to the ratchet wheel 33 is separated from the ratchet teeth of the ratchet wheel 33 and no longer presses the pressing rod 41, when the pressing rod 41 is not pressed, the one end of the pressing rod 41 close to the ratchet wheel 33 is automatically abutted on the ratchet teeth of the ratchet wheel 33 by the restoring force of the elastic piece 42, thereby realizing the unidirectional clamping of the ratchet wheel 33. In addition, the locking assembly 4 in the embodiment of the application can also be selected in another installation manner, the pressing rod 41 is arranged as a rod body in an extension state, that is, the pressing rod 41 is arranged in a straight line along the tangential direction of the ratchet wheel 33, and the unidirectional clamping action of the ratchet wheel 33 is realized by controlling the straight line extension and contraction of the pressing rod 41.

[0037] With reference to Figure 4 , the jaw end of the second jaw body 2 is provided with a mounting slot 21; the ratchet wheel 33 and the locking assembly 4 are both mounted in the mounting slot 21. In the embodiment of the application, the mounting slot 21 is provided at the jaw end of the second jaw body 2, so that the ratchet wheel 33 and the pressing rod 41 can be normally mounted in the mounting slot 21; in the embodiment of the application, the mounting slot 21 can also not be provided, and the ratchet wheel 33 and the pressing rod 41 can be directly arranged outside the jaw end of the second jaw body 2, as long as the unidirectional clamping of the ratchet wheel 33 by the pressing rod 41 can be realized, but this design manner will occupy a large space.

[0038] With reference to Figure 4 , a reserved slot is provided at the inner side of the pressing rod 41; the elastic piece 42 is mounted in the reserved slot. In the embodiment of the application, the reserved slot is provided at the inner side of the pressing rod 41, so as to facilitate the mounting of the elastic piece 42.

[0039] With reference to Figures 5-11The use process of the clamp pliers provided by the embodiments of the present application is as follows: a wire 5 with a proper length is clamped into the clamping groove 11 of the pliers, the wire 5 is bent into a U shape with the clamping groove 11 as a reference, the wire 5 is wound around the pipeline at the position where locking is required, is passed from the outside of the clamping groove 11, is passed through the through hole 31 of the rotating column 32, the rotating column 32 is tightened, the wire 5 is bent and wound around the rotating column 32 and is fixed through friction, the pliers handle of the first plier body 1 and the second plier body 2 is gripped tightly so that the plier mouth is opened, the wire 5 at the pipeline is tightened, the pliers handle is continuously gripped tightly, the clamp pliers is turned over forward with the clamping groove 11 of the plier mouth as the center (an important step for making the clamp and locking), the wire 5 is bent, and the tightened wire 5 is fixed; the first plier body 1 and the second plier body 2 are loosened, the pressing rod 41 is pressed, the tightened rotating column 32 is loosened, the clamp pliers is taken off, the excess wire 5 is cut off, the protruding part is trimmed, the clamp is made and is firmly locked on the pipeline.

[0040] The various embodiments in the specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other, and each embodiment mainly explains the difference from other embodiments.

[0041] The above embodiments are only used to illustrate the technical solutions of the present application, and are not limited to the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the present application.

Claims

1. A clamp wrench characterized by comprising: The first jaw body (1), the second jaw body (2), the knob assembly (3) and the locking assembly (4) are included. The first jaw body (1) and the second jaw body (2) are rotationally connected. The jaw end of the first jaw body (1) is provided with a clamping groove (11) on the outer side away from the jaw end of the second jaw body (2), and the wire (5) can be clamped into the clamping groove (11). The knob assembly (3) is rotationally connected to the jaw end of the second jaw body (2), and the locking assembly (4) is arranged at the jaw end of the second jaw body (2). The knob assembly (3) and the locking assembly (4) are one-way clamped, and can be one-way rotated relative to the second jaw body (2). The wire (5) can be connected with the knob assembly (3), and after one-way rotation of the knob assembly (3), the tightening and locking are realized. By controlling the output end of the locking assembly (4), the one-way rotated knob assembly (3) can be unlocked and loosened.

2. The clamp of claim 1, wherein, The two ends of the knob assembly (3) extending out of the second jaw body (2) are both provided with through holes (31) in the radial direction of the knob assembly (3), and the wire (5) can pass through the through holes (31).

3. The clamp of claim 1, wherein, The cross section of the clamping groove (11) is a semicircular structure or a U-shaped structure.

4. The clamp of claim 1, wherein, The knob assembly (3) includes a rotating column (32) and a ratchet wheel (33). The rotating column (32) is fixedly connected with the ratchet wheel (33) as a whole, and the outer side of the rotating column (32) is rotationally connected with the jaw end of the second jaw body (2). The output end of the locking assembly (4) can be one-way clamped with the ratchet teeth of the ratchet wheel (33).

5. The clamp of claim 4, wherein, The knob assembly (3) further includes a rotating rod (34). The rotating rod (34) is fixedly connected with the end of the rotating column (32).

6. The clamp of claim 4 or 5, wherein, The locking assembly (4) includes a pressing rod (41) and an elastic member (42). The pressing rod (41) is rotationally connected to the jaw end of the second jaw body (2), and one end of the pressing rod (41) close to the ratchet wheel (33) is one-way clamped with the ratchet teeth of the ratchet wheel (33). The elastic member (42) is arranged between the jaw end of the second jaw body (2) and the pressing rod (41), and when the end of the pressing rod (41) away from the ratchet wheel (33) is not subjected to force, the end of the pressing rod (41) close to the ratchet wheel (33) is always in contact with the ratchet wheel (33).

7. The clamp of claim 4 or 5, wherein, The jaw end of the second jaw body (2) is provided with a mounting groove (21). The ratchet wheel (33) and the locking assembly (4) are both mounted in the mounting groove (21).

8. The clamp of claim 6, wherein, The inner side of the pressing rod (41) is provided with a reserved slot. The elastic member (42) is mounted in the reserved slot.

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