TW200400091A - Crimping apparatus - Google Patents

Abstract

Apparatus actuated by a rotational drive for crimping a fitting are disclosed. In one embodiment, the apparatus includes a crimp ring having at least two crimp ring segments pivotably coupled together for crimping the fitting. A first member, such as a trunnion or coupling arm, engages a first of the at least two segments, and a second such member engages a second of the at least two segments. A screw is coupled to the rotating drive. The screw is coupled to the first and second members such that at least one of the members in movable along the screw when the screw is rotated. In one embodiment, the rotational drive couples to the screw by a transfer mechanism for transferring and controlling rotational movement from the rotational drive to the screw. The transfer mechanism can include a plurality of gears or can include a universal joint. The rotational drive can be a drill or can be a socket and a ratchet.

Description

200400091 发明 Description of the invention: Cross-reference to related applications: This application claims United States Provisional Patent Application No. 60 / 389,217 (filed on June 17, 2002, and its title is, Clamping Device,) and The first claim is that the 218 patent application in the U.S. patent application (the application was filed on June 17, 2002, titled "Assembly of Clamp Ring and Actuator") has priority. The entire contents of the case are incorporated herein by reference. FIELD OF THE INVENTION The present invention relates generally to a clamping tool for clamping clamps which can connect various sections of pipes together, and more particularly, to a clamping device for clamping such pipe joints. . Prior art compression fittings are usually a g-shaped sleeve f made of plastic or metal and containing a seal. In order to form a joint between the ends of two pipes, the pipe joints need to be slipped over the ends of the pipes, and then the pipe joints are compressed radially to make a leak-proof joint between the two ends. The joints have considerable mechanical strength and are self-supporting. The pipe joint can be pressed to the end of the pipe using a jaw clamp (such as the < orange clamp tool known in the art). A typical jaw tool includes up to > two arms or jaws. A driving mechanism, such as a hydraulic piston actuated by hydraulic pressure from a pump in the tool, can be used to move the arms. In certain embodiments, at least a portion of the arms may be moved inwardly 'during the clamping operation to directly clamp the pipe joint. In other embodiments, the arm of the rotary driving device can actuate a clamp ring of a clamp pipe joint. ^ ^ The hanging ring consists of two or more clamp ring segments connected together.

86146.DOC 200400091 = Rotary drive arm of the clamping tool _ to the 1-axis port or indentation defined in the segment of the opposing jaw segment. -Generally speaking, the clamp ring can be used to clamp-diameter of, 5 inch pipe joints. Some existing clamp bands can be used for diameters as small as ^ '(P1 2 inches) < diameter, such as the multi-segment clamp bands manufactured by Novopress for use in pipe joint systems. Unfortunately, the tongs tool can not always ideally or nearly ideally clamp the tube. 'This is especially true when the pipe joint has a larger diameter (for example, greater than 2.5 inches). In other words, 'the typical rotary driving device and the jaw ring assembly according to the prior art may not be able to apply the jaw force to the pipe joint uniformly within the piston displacement range. In addition, when used for compression fittings of different sizes, and especially for larger straight pipe joints, the force and displacement distribution of the prior art clamp line is not restrained. Other problems with existing clamp rings include the weight of existing clamp rings, the cost of using existing clamp rings with multiple clamp rings to accommodate different size pipe joints. Some rungs of the prior art are intended to facilitate the rounding of the jaw ring-tube joint closure. For example, U.S. Patent No. 5,598,732 discloses a compression clamp ring that includes a traction band located outside the jaw of a clamp ring. A clamp-light and economical clamp ring. In another-Real Money, No. 6, Wu Guo patent disclosed-compression clamp ring, the compression clamp ring includes a leaf spring located outside the chain of the clamp ring to facilitate the ring Connector. In a re-example, U.S. Patent No. 6,058,755 has also disclosed a compression type clamp ring including a plurality of pressure elements that are connected together in a frame manner or in a chain manner by a splint. The present invention aims to overcome or at least reduce the effects of the above-mentioned problems.

86146.DOC 200400091 SUMMARY OF THE INVENTION The present invention discloses a device for clamping a pipe joint. In a specific embodiment, the device includes a flexible band, a jaw assembly, and an actuating assembly. The clamp assembly wraps around the fitting. The flexible member surrounds an outer surface of the jaw assembly and has a first end portion and a second end portion. The first and second stop members are located at the ends of the flexible member and are coupled to the actuating assembly arm. In another specific embodiment, the pi-poly joint is installed to clamp the pipe joint. In yet another embodiment, the device includes a jaw chain having a plurality of linking elements. The jaw chain has first and second ends, and at least one end of the rotary driving arm is detachably coupled to one end of the jaw chain. The coupling element of the jaw chain surrounds the pipe joint and has a surface for clamping the pipe joint. The invention discloses a device actuated by a rotary driving device to clamp a pipe joint. In a specific embodiment, the device includes a jaw ring having at least two jaw segments that are pivotally connected together for jaw fittings. A first member (such as a trunnion or a coupling arm) mingles the at least two: the first sector of the segment ' and a second such member engages the second sector of the at least two. -Screw "to the rotary drive device" The Hailuo Cup is lightly connected to the first and second components, so that when at least one of these components is rotated, the transmission device is connected to the screw by a transfer machine to transfer the mechanism Can include multiple gears, or installers; ::: = rotary motion. The drive can be, device, or two; == The rotation is not intended to explain every aspect and specificity of the subject matter of the present invention.

86146.DOC 200400091 embodiment. Embodiment A. Clamping device with system Refer to FIG. 1, which illustrates a clamping device 10 for clamping a pipe joint 12 to a pipe 13. The jaw device includes a motion assembly i 00 and a jaw assembly 200. The actuating assembly may include a clamp mechanism, a scissors mechanism, a jaw mechanism, a vise mechanism, or a tool (not shown) known in the art for generating by a hydraulic drive device or the like A mechanism for clamping force. The actuating assembly 100 includes first and second actuator elements or arms 1103 and 110b, first and second side plates 12 (^ and (a side plate not shown), and first and second pivot pins 130a and 130b. The first and second actuator elements 110a are substantially the same and are arranged symmetrically in the jaw assembly 100. The first and second rotary driving arms 110a and 110b respectively include a cam surface U2a and 112b, a pivot hole 114a and 114b, a stop hole U6a and 116b, and a bifurcated end 118a and 118b. The pivot hole 114a and 114b accommodates a rotation driving arm 110a and 110b to rotate around the center. Pivot pins 130a and 130b. The stopper holes 116a and 116b defined in the split ends 118a and 118b receive the stopper pins 140a and 140b described below. The actuator elements 110a and 110b are connected by side plates 120a and an unillustrated one. The side plates are pivotally connected by pivot pins 130a and 130b. The side plates 120a are substantially the same and are arranged parallel to each other on both sides of the assembly 100. The pivot pins 130a and 130b penetrate the side plate 120 and penetrate the actuator elements 110a and 110b. The pivot holes 114a and 114b are located at the ends of the pivot pins 130a and 130b. 100 fixed together.

86146.DOC 200400091 The jaw assembly 200 wraps around the pipe joint 12 and is removably attached to the actuator assembly 100. The jaw assembly 200 has an inner surface 202 and an outer surface 204. The inner surface 202 may define an internal dimension for the jaw fitting 12. The clamp assembly 200 includes two sector segments 210a and 210b connected by a connector or pin 230; however, it should be understood that the clamp assembly 2000 may have more than two sector segments. As best shown in the cross-sectional view of FIG. 2A, the sector segments 20a and 21b are connected together by a pivot pin 230 fixed by a stop plate 232. Each of the segments 210a and 210b includes an inner surface 212, and the inner surface 212 may include a flange 214. In FIG. 1, the jaw device 10 also includes a flexible member 150 coupled to the actuating assembly 100 and the jaw assembly 200. The flexible member 15 is a narrow band, a belt, a loop, a belt, a band, or the like. The flexible member 50 may be made of polyparaphenylene terephthalate, p-phenylenediamine (KEVLAR), other nylon polymers, nylon, or a high-strength woven or uniform material or metal. The flexible member i 50 is preferably a continuous seamless belt and is preferably made from KEVLAR. The flexible member 150 includes an inner band 152 and an outer band 154 which may constitute the annular end portion 15 and 156b. The continuity of the flexible member 150 guarantees strength and eliminates the need for additional components or fasteners attached to the strap 150 and coupled to the actuator assembly 100. The flexible member 150 surrounds the outer surface 204 of the jaw assembly 200. Couplings 16 & and 160b secure the flexible member 150 to the jaw assembly 200, but provide sufficient clearance to allow the relative distance between the flexible member 15o and the sector 21 and 210b. Circular motion. In addition, the jaw assembly 200 may define an external groove (not shown) to accommodate a flexible member 150 therein. Alternatively, the flexible member 150 may be used without the clamp assembly 200 as detailed above.

86146.DOC -10- 200400091. In this alternative embodiment, the flexible member 150 may be, for example, a chain, a plurality of coupling elements, or a metal band, which directly surrounds the pipe joint 12 and defines a pipe joint 12 for clamping. Inner surface. The female-actuating element 1110 & and 11 ^) both receive the ring-shaped end portions 156 & and 156b of the flexible member 150 at the bifurcated ends. The split ends 1183 and 11813 of the actuator elements 11a and 110b move relative to each other. When the bifurcated ends 118a and 118b move closer to each other, a dimension defined by the flexible member 15 will change, thereby closing the jaw assembly 200 around the pipe joint 12. The bifurcated ends 118a and 118b may further define a surface for directly contacting and pinching the pipe joint 12 in a centerline gap formed between the fan-shaped segments 21 & 210b of the jaw assembly 200. The flexible member 150 is coupled to the first actuator element 丨 〇a and is coupled to the second actuator element iiOB. The first annular end portion 156a is positioned in the bifurcated end 118 & and the stopper pin 140a passes therethrough. The first annular end portion 15 is rotatable around the stopper pin 140a and the stopper pin 140a. At least one of the ring ends ι56 & and 156b is detachably coupled to a split end 118 & and n8b. For example, the second annular end portion 1561) may be positioned in the bifurcated end, and the second stopper pin 140b may pass therethrough as described below. It should be noted that a stop pin 140a or 140b attached to one of the actuator elements 11aa411〇b in a rigid manner would prevent the replacement of the flexible member 150 and the pliers used with the rotary drive device 100. The clamping device 200 is not a condition that I would like to see when the rotary driving device is intended to be used with clamp rings of different sizes. Alternatively, as illustrated in FIG. 3A, the flexible member 150 may be an integral strip 151 made of a material whose ends are joined together, so that the strip 151 forms a continuous

86146.DOC -11- 200400091 Continued. Unlike the continuous seamless belt described above in FIGS. 1 and 2A-B, the ends of the integral strip 151 are joined at 161. For example, as illustrated in Fig. 3b ', by stitching the ends of the integral strip 151 made of fibers (such as KEVlar) together, the end connection at 161 can be achieved. However, end joining can be achieved by several methods known in the art for joining the ends of materials, including but not limited to gluing or riveting. Unlike the continuous belt described above, the flexible member 150 may be a unitary belt having a mechanism or structure for forming a ring-shaped end portion 51. For example, as illustrated in FIG. 4a, a fastener or pressure plate 162 may clamp one end of the strap 51 to form an annular end 158, thereby receiving a stop pin (not shown). Alternatively, as illustrated in FIG. 4B, a ring, ring, or other similar structure 166 may be attached to the end of the integral strip 15 by a fastener or pressure plate 164. The ring 66 can accommodate a stop pin (not shown) to connect the flexible member 150 to a rotary drive arm (not shown). To place the jaw device 10 on the pipe joint 12 in FIG. 1, the jaw assembly 200 needs to be opened so that only the first annular end portion 156a of the flexible member 150 is coupled to the actuation assembly 100. The jaw assembly 200 is wound around the pipe joint 12. Thereafter, the second annular end portion 156b is placed in the forked end of the second actuator element ii0b. As best shown in FIG. 2B, the second or detachable stop pin 14ob is inserted into the stop hole 116b defined in the forked end 118b of the second rotary drive arm 110b. The detachable stopper pin 140b passes through the second annular end portion 156b of the flexible member 150. Therefore, the second annular end portion 156b is detachably coupled to the second actuator element 110b and is movable therewith. As mentioned above, one or both of the stop pins 140a or 140b can be removed from the holes 116a or 116b of the actuator 86146.DOC -12-200400091 element 110a or 110b to allow one of the rings to be released from the end 156a or 156b. coupling. Preferably, both of the stop pins 14 and 14 叽 allow the ring ends 156a and 156b to be decoupled from the ends 118 & and 11813, so that the rotary driving device 100 can be used with jaw assemblies of different sizes. Alternatively, one or both of the 'stop pins 140a or 140b may be contracted. For example, as best shown in Fig. 2B, the stop pins 14o & 1413 may define an axial groove 142. The locking element 170 shown in Fig. 1 can be inserted into the split ends 118 & A locking element 170 disposed in the axial groove 142 allows the pins 140a and 140b to move partially axially in the holes 116a and 116b to remove the pins from the annular ends 156a and 156b of the flexible member 150. The locking elements 170a and 170b can further prevent the pins 14 (^ and 14〇b from rotating in the stopper holes 116 and 116b. However, it is not absolutely necessary to prevent the pins 14 (^ and 14〇1) from rotating. Therefore, another A structure, such as an annular shoulder (not shown) on the pin 14 (^ or 14 0b), can be used with the locking element 17 0, so that the pins are not only retractable but also allow them to rotate. See FIG. 5 Other details of the jaw device 10 will be further explained below. An engaging element 190 is positioned between the rotary driving arm 11 (^ and 1103). The engaging element 190 is a jaw for operating the jaw device 10 Part of a tool (not shown). The mocking element 190 is, for example, a roller bearing including first and second rollers 192a and 192b. The roller bearing 19 is moved by a rotary drive device. The rotary driving device may be, for example, a hydraulic piston (not shown) of a clamping tool. The rollers 192a and 192b engage the cam surfaces 112a and 112b of the rotary driving arms 110a and ii〇b. The roller 192a And 192b apply force to the cam surfaces 86146.DOC -13-200400091 112a and 112b to rotate The booms 110a and i10b rotate around the pivot pins 13 (^ and 130b. When the stop pins 140a and 140b with the flexible member 15o ring ends 156 & and 156b are brought together, a clamping force is generated. For example, If the rotary driving device applies a 32 kilonewton output force to the roller support 190, each roller 192a and 192b will receive a force of 16 kilonewtons. When this 16 kilonewton force is applied to the cam surface At 112 & and 112b, the force N generated on the actuator elements 110a and 110b may be about 92 kilonewtons. This force N is initially applied to a pivot 13 of the actuator element 11 (^ and 11〇b). (^ Is away from 13 Ob by A. At this time, a moment will be generated on the actuator elements 丨 丨 (^ and 丨 丨 b), and these actuator elements 11 (^ and 11〇13 will surround the pivot pin 13 (^ And 13 °] 3. When the stop pins 140a and 140b are moved away from the pivot pins 130a and 130b by B, a clamping force Pi will be generated. This clamping force is applied to the flexible member 15. It should be understood The numerical value given in this article is only an exemplary numerical value, and it depends on several design factors such as size, geometric arrangement, tolerance, etc. The force P2 of the flexible member 150 is indicated. The ground is distributed around the outer surface 204 of the jaw assembly 200. The flexible member 150 will exert a force! ≫ 2 is evenly applied to a large part of the outer surface 204 of the jaw ring 200 surrounding the pipe joint 12. If It is assumed that the force p2 is the yield strength of a pipe joint made of tin bronze. For example, the approximate value of the force p is 1 $ 0 Newton / square millimeter: or about 21,755 releases per square inch. For a 25 inch diameter pipe joint 12, the initial radius of the flexible member 15 may be approximately ^ .604 inches; for a 3 inch diameter pipe joint, the initial radius of the flexible member 15 may be Approximately 1.880 inches; for a 4-inch diameter pipe joint, the initial radius of the flexible member 150 may be approximately 2.382 inches. For a 4-inch diameter pipe joint, the annular end of the flexible member 15o 86146.DOC -14- 200400091 The force Pi at 156a and 156b can be calculated to be approximately 25,909 lbs / inch. Therefore, a flexible band 150 made from KEVLAR for clamping 2.5 to 4 inch pipe joints must withstand a force of at least 26,000 pounds without damage. The general width W! Of such a flexible member 150 is preferably 1.75 inches or more. The above values are merely exemplary values, and the values given are used to clarify certain exemplary dimensions and exemplary forces of a specific embodiment of the jaw device 10. Those skilled in the art can use the present invention to select and design other possible specific embodiments with different structural, geometric, or material constraints. Referring to Fig. 6A, this figure shows the jaw device shown in Fig. 5 and other details and elements of the present invention in a cross-sectional view. As described above, the stopper pin 140 can define a slot 142. The split end 118b may define a hole 172 for receiving a locking element 170b. As shown in FIG. 5, the first stopper pin 14a and the split end 118a may also include a similar locking element 17a. Preferably, the locking element pOa-b is a spring-loaded locking element. As shown in FIG. 6A, one end of the spring-loaded locking element 170b is located in the slot 42. When the locking element 17b is spring-loaded, the pin 140b may be inserted into the furcation end 118 and subsequently engaged by the locking element 17. The spring-loaded locking element 170b prevents the detachable stop pin 14b from rotating in the stop hole 116b. In addition, the frictional force exerted on the pin 14 by the spring-loaded locking element nob can fix the pin 14b in the split end in the axial direction, thereby keeping the pin 140b in the clamping process. A closed position. Alternatively, as shown in Fig. 6B, a hole 172 in the split end 172 can receive a spring-loaded ball lock pin 171. The actuating element 11 ob includes a stop lock device 180 adjacent to the detachable pin 4 cents. For example, the stop lock device 18 includes a bearing and

86146.DOC -15- 200400091 a spring. The stop pin 140b may define a slot or slot 144 for receiving a bearing of the stop lock device 180. The locking device ⑽ fixes the locking device on the foot position § Allows the pin 140b to move out of the locking hole 116b when the locking device 180 is offset. If the spring-loaded ball lock pin 171 shown in Fig. 6B is used in the right hole 172, the stop lock device 18 () can be eliminated. As shown in FIG. 5, the width 1 of the opening defined in the bifurcated end of the actuator element 11 is, for example, about 2.125 inches. The width W2 of the flexible member 150 is, for example, about 2 inches. As described above, the maximum bending stress at the price of the stop pin 14 can be calculated using an exemplary force of approximately 25,909 pounds acting on the flexible member 150. For example, if the diameter 0 of the pin 14b is i inches, the maximum bending stress on the pin 140b is about 140,000 pounds per square inch. If the pin 140b has a diameter of ι · 25 inches, the maximum bending stress is about 71,782 pounds per square inch. The above calculations are only exemplary calculations, and the calculations given are used to clarify certain exemplary dimensions and exemplary forces of a specific embodiment of the jaw device 10. Those skilled in the art can use the present invention to design and analyze other possible specific embodiments with different constraints. Referring to FIGS. 7, 8A-B, and 9, these figures illustrate another specific embodiment of the clamp device 20 of the present invention. In Fig. 7, a top view of an actuator assembly 100, a flexible member 150, and a jaw assembly 200 are explained. In FIG. 8A, a cross-sectional view of a flexible member 15o surrounding one of the sector segments 21a of the jaw assembly 200 is illustrated. In Fig. 8B, a sectional view of a stopper pin 14a and an annular end portion 156b of the flexible member 150 are explained. In Fig. 9, a bifurcated end 118a of an actuator element 110a of the actuator assembly 100 is explained in a perspective view. Referring to FIG. 7, the flexible member 150 surrounds one of the outer surfaces of the jaw assembly 200 204 86146.DOC -16- 200400091. In this specific embodiment, the jaw assembly 200 has three coupling segments 210a- c. In this specific embodiment, each sector 21oa_c is connected together by pivot pins ^ ⑹ and 23 Ob. The pivot pins 230a and 23 Ob may further include a twist pin (not shown) to bias the jaw assembly 200 to a shown closed position. Alternatively, the segments 210a-c may be connected by other structures known in the art that do not use pivot pins. For example, each sector 21 oa_c can be connected together by a slotted joint. In this embodiment, the flexible member 150 is a continuous belt including an inner belt 152 and an outer belt 154 that are continuously connected to form the first and second end portions 156 & and 156b. As best shown in Fig. 7, the coupling 丨 60 & and 16 ribs (such as the coupling described above) secure the flexible member 150 to the clamp assembly 200, but provide sufficient clearance to Relative circular motion is allowed between the flexible member 15 and the sector segments 2103 and 21 Ob. In addition, these couplings 6O & and 6S can be used to maintain the size and shape of the middle ring of the ends 156a and 156b. A fixing pin 164 passes through the flexible member 150 to fix the member to the jaw assembly 2000. As shown in cross-sectional view A in FIG. 8A; as best shown, the fan-shaped segment of the jaw assembly 2000 (such as the fan-shaped segment 210a shown) includes an inner surface 212 with a flange 214 and bounds a groove 2 1 5 Each of the looped ends 15 and 15 of the band 150 includes a stop pin 140a and 140b to accommodate the strips 15 2 and 5 4 of the flexible member 15. The stop pins 14 (14 and 14) are detachably coupled to the actuator elements 110a and 110b. As best shown in the sectional view in FIG. 8B, the stop pin 140a is located at the annular end of the flexible member 丨 50 56a, and the end of the pin 4 extends from the annular end portion 156a of the flexible member 150. The stop pin 14 includes a pin that can be fixedly attached to the pin or can be fixed by the pressure plate 143 if included.

86146.DOC -17- 200400091 Shoulder or flange 142. In Fig. 9, the bifurcated end 118a of the actuator element or arm noa is explained in a perspective view. Each forked side of the bifurcated end 118a defines a hook, slot, or son 119a. As described above, the hook 119a is detachably coupled to the free ends of the stop pins 14a and 140b. The actuating assembly 100 includes two actuator elements 110a and 110b having bifurcated ends 118a and 118b and hooks 119a and 119b with stop pins i40a and 140b. Other specific embodiments of the actuator assembly 100 may include only an actuator element 110 having a hook for removably coupling to a stop pin. In this embodiment, another actuator element may include a retractable stop pin, such as the retractable stop pin explained above with reference to the specific embodiment shown in Fig. 6A. Referring to FIG. 10 and FIG. 11 ′, these drawings illustrate another specific embodiment of the jaw device 30 related to the pipe joint 12 according to the present invention in a sectional view. The jaw device 30 includes an actuation assembly 100 having first and second actuator elements or arms 1103 and 110b adjacent to each other. The first and second rotary driving arms 1102 and 1 include a cam surface 112a and 112b, a jaw surface 116a and 116b, a pivot pin 130a and 130b, and a stopper pin 140a and 140b, respectively. The pivot pins 130a and 130b are located in holes defined in the rotary drive arms' so that the arms can rotate on the pins. Side plates (e.g., plate 120a) are connected to the pivot pins 130a and 130b, thereby interconnecting the arms 110a and 110b. The stop pins 140a and 140b are detachably located in a hole at one end of the arm and pass through the grooves 118a and 118b at the end of the arm. A flexible member 250 is attached to the actuation assembly 100. The flexible member 250 is a continuous strip having an inner end portion 252 and an outer portion 86146.DOC -18- 200400091 portion 254 which are continuous with each other, and end portions 15 and 156b. The ring-shaped end portion 15 surrounds the stop pin 14 (^ and 14013) with 15 。. It is constituted by a band 250-directly surrounding the opening 258 of the pipe joint ^. When the rotary driving device 3 10 is actuated by a tool (not shown), actuate The device elements 110a and 110b will rotate around the pins 13a and 13013, so that the stop pins 140a and 140b move close to each other. Therefore, the opening 258 defined by the flexible member 25o will be radially reduced to directly clamp Pipe joint 12. In addition, the clamping surface also engages the pipe joint 12 with 116b to apply the clamping force to the pipe joint. A large part of the periphery. As described above, the flexible member 250 may be made of polyparaphenylene diene. Formamidine p-phenylenediamine (KEVLAR), other nylon-based polymers, Nissan-high-strength woven or uniform material or metal. In a specific embodiment illustrated in the perspective view shown in FIG. U, the flexible member 250 It may include a plurality of solid elements 260 attached thereto to contact the fitting. The solid elements 260 may be constructed of metal, riveted or otherwise attached to a portion of the inside band 252 defining the opening of the flexible member 25 Top. The solid element 26 can be useful for clamping force Directly applied to the pipe joint. The solid element 260 may also include a raised ridge 262 for aligning the pipe joint. B. Clamping device with chain system See Figures 12 and 13A_C. These figures illustrate the clamping device of the present invention. Another specific embodiment. As best shown in FIG. 12, the clamp device includes a flexible clamp assembly 300 and an actuation assembly 360. The flexible clamp assembly 300 has the flexibility disclosed herein. The appearance and advantages of the component and the clamp assembly. The flexible clamp assembly 3 00 is a clamp chain including a plurality of coupling elements. The clamp chain 300 can surround an 86146.DOC -19- 200400091 tube The joint 12 is used to directly clamp the pipe joint to a pipe 13. The jaw chain 300 is preferably capable of applying a rung force around a large part of the circumference of the pipe joint. The jaw chain 300 includes a plurality of chains These segments include rollers or wheels 3 1 10, multiple pins 3 12, and multiple interconnecting members, plates or links 3 2 0, 3 3 0. Rollers or wheels 3 10 are worn in multiple The pins 3 12 passing through the roller 3 10 are rotated. The pins 3 12 are interconnected by the plurality of interconnecting members, plates or links 320, 330. In FIG. 13A, it is shown in a plan view. A part of the chain 300. The roller 3 10 is rotatably placed on the pin 3 12. The first interconnecting member or inner link 320a-b is placed on both sides of the roller 310 and by the adjacent pin 312 Interconnect. The inner key 320a-b defines a hole that will pass through the pin 3 12 so that the inner link 320a-b can rotate thereon. The second interconnecting member or outer link 33〇a_b is placed on the inner link 320a-b are interconnected on both sides by alternating adjacent pins 3 丨 2. The outer chain 3 3 0a-b also defines a hole that will pass through the pin 3 12 so that the outer link can rotate on it. Retainers (not shown) on the ends of pins 3 12 of adjacent outer links 330a-b can be used to secure the structure together. Alternatively, the inner links 320a-b can be rotated on adjacent pins 312, while the outer links 330a-b are press-fitted or snap-fitted on alternate pins 312, thereby eliminating the need for an external retaining ring. FIG. 13B shows an end view of the chain 300 shown in FIG. 13A along the line C-C. This figure shows a roller 310, a pin 312, an inner link 320a-b, and an outer key 3 3 0a-b in a cross section of the coupling joint 12. The liquid 3 10 is located on the roller pin 3 12 and is held between the inner side links 320a-b 'and the inner side link 320a-b itself is held between the outer side links 330a-b. The rollers 3 10 have a larger diameter and extend beyond the height of the links 320a-b and 330a-b. In this way, the roller 310 can constitute a flange. For example, the width of the roller 3 10 may be about 0.188 inches. Roller 86146 DOC -20-200400091 310 The inner links 32 (^ and 32) on both sides can be approximately 0344 inches wide. The outer links 330a-b may have a width similar to the inner links 32〇a_b The overall width of π rollers 3 10 with links 320a-b and 330a-b may be about 15 inches. Referring back to FIG. 12, the actuating assembly 100 includes a first rotary driving arm u〇a and a second Rotary drive arm U〇b. Rotary drive arm 丨 丨 and 丨 丨 仳 are coupled to the first and second end rollers 35 (^ and 35 叽) of the jaw chain 300. The first end roller 350a is set on the table Removably coupled to the stop pin 340a of the first rotary drive device 110a. The first rotary drive device u0a includes a fishing 114 located on the stop pin 340a, so that the first end roller Removably coupled to the first rotary driving device 11a. The second end roller 350b of the jaw chain 300 is located on a fixed stop pin 340b fixedly connected to the second rotary driving arm u〇b. The radius of the partial rollers 35 (^ and 35〇1) can be larger than the other rollers 3 1 0 in the jaw chain 300. The standard pipe joint is a thin-wall pipe joint. In use-traditional pliers During the operation of the ring, a crease or wrinkle will be formed between the closed segments of the clamp ring and especially between the free ends of the clamp cymbals. By including a sufficient number of chains, the pliers of the present invention The clamp chain 300 can achieve substantially uniform compression of the joint. In addition, since the clamp chain 300 exerts a force substantially perpendicular to the surface of the joint 12, the clamp chain 300 of the present invention can reduce or nearly eliminate wrinkles or folds in the joint. Preferably, the jaw chain 300 can be effectively used for pipe joints of many sizes. To achieve this purpose, the 'jaw chain 300 may have a predetermined pitch. The actuation assembly ι 00 is actuated when fully actuated. There is a centerline gap g between the ends of the actuator elements 34a and 34b, so the clamp chain 300 includes one end gap clamp 86146.DOC -21-200400091 The pitch of the chain 300 can be changed to The end gaps G on the size pipe joints are almost equal, so that a single clamp chain 300 can be effectively used for pipe joints of many sizes by simply connecting to a different pin position on the chain. Interconnect members or links 320 and 330 are identified. An inner link 320 is shown in a side view shown in Fig. 13C. The inner link 32 has an edge 322 defined by a radius ruler. The inner link 32 also has adjacent rollers for clamping the chain The distance between the first and second holes 324 and 326 of the sub-pin (not shown) determines the pitch of the jaw chain. This pitch can be selected so that a single chain can be designed for multiple sizes Pipe joints. This pitch is selected as a compromise among several variables, which mainly include the circumference of various pipe joints to be applied, the centerline clearance of the rotary drive arm, the tool stroke, and other edge amounts. The above-mentioned outer link has a side structure substantially similar to the inner link 32o. C. Clamping device actuated by a rotary drive device Refer to Figures 14-16. In these figures, the same reference numerals indicate the same components. 'These figures illustrate the specific implementation of the clamp device used with a rotary drive device 450. example. The rotary driving device 450 may be, for example, a conventional electric drill with an electric motor, but it should be understood that other rotary tools may be used that can provide rotation to drive a screw. For example, the rotary driving device 450 may be a manual drill, a pneumatic drill, a sleeve, a ratchet, a wrench, or a screwdriver. Referring to FIG. 14, the jaw device 400 is actuated by a rotary driving device or a drilling machine 45. The orange clamp device 400 includes a jaw assembly 410 having a first sector segment 412a and a second sector segment 41213. The first and second sector segments 412 & and 41 holes are connected by a 86146.DOC -22- 200400091 pivot pin 414, and the jaw assembly 410 can define an inner surface 415 to clamp a pipe joint (not shown) . The first sector segment 412a has a first pivot member or trunnion 420a at its end 416a. The second sector segment 412b has a hook 41 8 on its end portion 41 6b. The second pivot member or trunnion 42Ob is rotatably and slidably placed in the fishing 418, and the hook 418 can be opened to receive or remove the trunnion 420b. A drive member or screw 430 is rotatably connected to the first trunnion 42a & through the second trunnion 420b. The driving screw 430 is connected to a transmission mechanism or a gear mechanism 440. A rotary driving device 450 is coupled to the transmission mechanism or gear mechanism 44 to rotate the driving screw 430 and open or close the sector segments 412a and 412b around the pipe joint. The transmission mechanism or gear mechanism 440 allows the rotary driving device 45 to be coupled by one or more ways, as illustrated by the driving devices 450 and 450 in FIG. It may be useful when space is limited. If the clamp device 400 needs to be wrapped around the pipe joint, the driving screw 430 should be pivotally connected to the first trunnion 420a, and the second trunnion 420b should be removed from the hook 418. Thereafter, the first and second sector segments 412a and 412b are rotated and separated, and the clamp assembly 410 is positioned so that the pipe joint is located between the sector segments 412a and 412b. Then, the driving screw 430 is pivoted to the first trunnion 420a again, and the second trunnion 420b is positioned in the hook 418. In a specific embodiment, the transmission mechanism or gear mechanism 440 includes a universal joint (not shown) or a simple set of gears with a transmission ratio of 1: 丨. In another specific embodiment, the 'transmission mechanism or gear mechanism 440 includes a gear having a transmission ratio that increases the output torque of the rotary drive device 450 to the output torque of the drive screw 430. In addition, the transmission ratio of the mechanism 440 can also reduce the rotational driving device 450 86146.DOC -23- 200400091 to output the RpM of the driving screw 430 to better control the cooling device 400. The transmission mechanism or gear mechanism 440 includes a shaft 452 detachably connected to the chuck 454 of the rotary driving device 450. When the driving screw 43o is actuated by the transmission mechanism or the gear mechanism 440, the second trunnion instrument moves along the rotary driving screw 43o that rotates on the fixed first trunnion 420a. When the sector segments 412a and 412b rotate around the pivot point 414, the hook 418 can accommodate its circular motion. The transmission mechanism or gear mechanism 440 can also include a torque clutch for disengaging to the drive when a predetermined torque value is reached. The rotation of the screw 43 is transmitted. The torque clutch prevents the jaw device 400 from passing through the jaw fitting. It should be noted that the clamp device 400 may have a mechanical limiter, so that when the mechanical limiter acts, the torque on the rotation driving device 450 will suddenly increase. Therefore, under this condition, the torque clutch can prevent the rotary drive device 45, the rig motor or other mechanical components from being damaged or overstressed. In addition, the torque clutch can be adjusted so that the transmission " is connected to the second part of the rotary drive 450 according to the type of pipe joint to be clamped on the pipe. The first and second parts can be engaged with each other, so that the first and second parts will be adjustable: a force ^ is transmitted between them, and when the resistance point is exceeded, the first and second parts Part will come off. Full-Select the torque level. For example, torque clutch = use Zhou Yu: Regarding the control of Yan-PEX system, a 2.5-inch pipe joint is placed on the M-type copper pipe, and a 3-inch pipe joint is clamped on the κ-type steel. The pipes are fine. The torque clutch may include the first part coupled to the driving screw 43 ° and those skilled in the art should understand that the design of the clamping device 400 depends on a number of 86146.DOC -24- 200400091 parameters and variables, such as The size of the pipe joint to be used, the torque and speed of the rotary drive device 450, the pitch and thread of the drive screw 430, the friction of the gear mechanism 440, and other parameters and variables. It should be understood that those skilled in the art will be able to select and calculate appropriate values for these parameters and variables to design a particular embodiment of the jaw device 400. In FIG. 15, another specific embodiment of the jaw assembly 402 includes components substantially the same as the assembly 400 shown in FIG. The difference is that the jaw assembly 402 includes an attachment portion 460 for attaching the jaw device 410 to the driving device 450, so that a smaller tool that is easier to handle can be achieved. The jaw device 410 is attached to the top of the driving device 450 (as shown) or may be attached to the side of the driving device 450. The second trunnion 420 b is positioned in a bifurcation groove 419 instead of a hook, and the transmission mechanism 440 has an opposite shaft 452 for coupling the rotary driving device 450. Therefore, a groove, a cavity, a son, a groove, or a bifurcated end may be used instead of fishing. Referring to Fig. 16, this figure illustrates another specific embodiment of the jaw device 470 which is operated by a rotary driving device 450. The jaw device 470 includes a jaw assembly 472, a transmission mechanism or gear mechanism 480, and driving members or screws 485a and 485b. The jaw assembly 472 includes first and second sector segments 474a and 474b, and defines an inner surface 475 to clamp a pipe joint (not shown) therebetween. The segments 474a and 474b are symmetrically arranged in the assembly 472 and connected to each other by driving screws 485a and 485b. The driving screws 485a and 485b are connected to the first sector 474a and pass through holes in the second sector 474b. The transmission mechanism or gear mechanism 480 includes a drive gear 482 which is rotatably attached to the second sector 474b and has a 86146.DOC -25- 200400091 for attachment to the rotation drive 450 Spur gear for shaft 483. The drive gear 482 has gear teeth that mesh with the gear teeth of the first and second spur gears 484a and 484b, which are rotatably attached to the second sector 474b. Each of the first and second spur gears 484a and 484b includes a threaded hole, and one of the driving screws 485a and 485b is screwed into and passed through the threaded hole. The rotation driving device 450 rotates the driving gear 482 to cause the first and second spur gears 484a and 484b to rotate. Therefore, the threaded driving screws 485a and 485b will move in the threaded holes in the spur gears 484a and 484b, and open or close the first sector 474a relative to the second sector 474b. D. Jaw Assembly Actuated by a Rotary Driving Device Referring to FIG. 17, this figure illustrates a specific embodiment of a jaw assembly 500 coupled to a conventional jaw ring. The jaw assembly 500 provides a knuckle connection between a rotary drive (not shown) and the jaw ring segments 60a and 60b. The jaw assembly 500 can be touched by a rotary drive device from many directions. The pinching ring sector 60a and 60b are connected at a pivot point 66, and each sector 60a and 60b defines a pivot port 62a and 62b. The jaw assembly 500 includes a driving member or screw 510, a driving coupling 520, a first coupling member or arm 530a, and a second coupling member or arm 530b. The first coupling arm 530a includes a port end 532a in the pivot port 62a of the first sector 60a. The port end 532a is preferably shaped to prevent adhesion. The second coupling arm 530b includes a port end 532b in the pivot port 62b of the second sector 60b. The driving screw 510 is connected to the first and second coupling arms 530a and 5 30b. The drive coupling 520 is connected to one end of the drive screw 510. In this specific embodiment, the drive coupling 520 is a universal joint, 86146.DOC -26- 200400091, so that the catch drive device can touch the jaw assembly 500 from many angles, sides and ways. A rotary driving device (which may be a drilling rig) is coupled to the universal joint 520, and the rotary motion is transmitted from the rotary driving device to the driving screw 5 10 by the universal joint 52. Under the action of the driving screw 51G, the first and / or the second arm 53a and 530b can move along the rotating driving screw 51o to open or close the clamp ring sector 60a and 60b. As shown in the figure, the driving screw 51o is rotatably attached to the first coupling arm 53〇a at 53 乜, and the driving screw 51o is screwed into and passes through the -thread in the "-no" g 53 0b Hole 534b. When the driving screw 51 () rotates with the rotary driving device, the second coupling arm 53ob will immediately move along the driving screw 5o0 relative to the fixed coupling arm 530a. When the sector _and_ surrounds the pivot axis When the point μ is rotated, the curved port ends 532a_b of the coupling arms 530a_b in the ports 62a-b can accommodate the rotational movements of the sector segments 60a and 60b. Another specific embodiment of the component 550. The jaw assembly 55 includes a driving member or screw 560, a driving coupling 57, a first coupling member or trunnion, and a second coupling member or trunnion Gb. The first trunnion 5_ is detachably positioned in a hook or groove 62 defined in the first sector segment 60a, and the second trunnion 58 仳 is rotatably connected to the second sector segment 60b. . The drive screw 5 6 0 includes first and second threaded portions 562 and 564 having opposite pitches. The threaded portions 562 and 564 are screwed in and passed through the first and second trunnions, respectively. A drive coupling 570 is connected to one end of the drive screw 56o. Drive. 570 is a gear mechanism, which can be driven by one or more rotation driving devices (not shown) coupled to the gear mechanism 570 and driving the screw 56.

86146.DOC -27- 200400091 Touch from side, angle or path. Raise your field aa with gear mechanism 570- The rotary drive can be-a traditional rig. The gear mechanism can transmit the rotation from the Di rotary driving device to the driving screw 56. Under the action of the gear 570, the first and second μA0 & 58 are moved along the opposing groove portions 562 and 564 of the driving screw 560 2 to open or close the fan segments 60a, 60b around the pipe joint. e. Manual or auxiliary clamping device actuated by a rotary drive device Refer to the drawings to explain specific embodiments of the manual or auxiliary clamping device 600 and 650. The clamps of the clamping device are manually operated or assisted by hydraulic or hydraulic tools. In FIG. 19, the clamp device includes a tongs assembly 610, a lever mechanism 62 and a hook mechanism 63. The jaw forming I10 includes a first axis and a second sector segment 612a and 612b connected to the inner surface 616 by a pivot 614 and a pipe joint (not shown) therebetween. The jaw assembly 61 is preferably designed for use in a pipe joint for a clamped, unplugged polyethylene (PE) pipe system. The first sector segment is attached with a handle and a lever mechanism 62. The β lever mechanism 62 includes a second handle or lever arm 622 adjacent to the first handle 613 and connected to the first sector 612a by a first pin 624. ^ The hook mechanism 630 is attached to the lever mechanism 62 by a second pin 632. The second pin is offset from the pin 624 to provide an additional lever arm length ratio. The locking mechanism 630 includes a free end removably attached to the second sector 612b. By way of example a, the free end of the hook mechanism 630 includes a hook or similar element of a pin or detent 634 removably attached to the first sector 612b. The hook mechanism 630 transmits the force from the bar guard arm 622 to the second sector 612b to close the pliers.

86146.DOC -28- 200400091 ~, 〇 Due to being removable, the locking hook mechanism 630 can be removed from the second sector 6 丨 2b, so that the hanger assembly 61 can be positioned on the pipe joint or removed from the pipe joint. . The jaw device 600 is actuated by-the operator squeezes the handles 613 and 622 / with the same hand. The clamp device in Fig. 19 can also use an example of a mechanical assisted action, and a hydraulic cylinder (not shown) can be used to close the handles 613 and 622 ', which can reduce the stress felt by the operator. In addition, the cooling device 600 in FIG. 19 can be operated by a rotary driving device (not shown). For example, the driving screw (not shown) can be similar to that disclosed in FIG. 14, FIG. M, and FIG. 18 < In this way, by rotating the driving screw by a rotary driving device such as a power drill, the sector segments 612a and 612b can be opened or closed around the official joint. In FIG. 20, the jaw device 650 includes a jaw assembly 660, a lever mechanism 670, and a wedge mechanism 68. The jaw assembly 66 includes first and second sector segments 662 & and 6621) connected together at a pivot 6 position. The first and second sector segments 662a and 662b may define an inner surface 666 to clamp a pipe joint (not shown) therebetween. The jaw assembly 66 is preferably designed to clamp pipe joints of a PEX (χ-linked polyethylene) pipe system. The lever mechanism 67 is connected to the first sector 662a by a pivot 672 and may include a lock / unlock mechanism 674 as shown in FIG. 20. Alternatively, the lever mechanism 67 may be attached to the first fan segment 662a in a fixed manner. The lever mechanism 670 includes a surface 676 that contacts the wedge mechanism 680. When the wedge mechanism 680 is actuated, it will engage the second sector segment 66 hole and the surface 676 of the lever mechanism 670. When the wedge mechanism 680 moves, it will be wedged between the second sector 662b and the lever mechanism 670. The lever mechanism 670 moves the first sector 86146.DOC -29- 200400091 & 662a 'while the molding mechanism 68 pushes the second sector 662b, and the total jaw 660 is closed around the pipe joint. Wedge mechanism _ can be operated manually, for example, a screw press or a vice is used to operate. The wedge mechanism 680 can also be used to find auxiliary actions. For example, a rotary press such as a drilling rig can be used to operate a screw press to move the wedge mechanism 680. In another model, a hydraulic cylinder (not shown) can be used to move the wedge mechanism 68. In this specific embodiment, the wedge mechanism includes-wedge 682 and -recognition screw 688. The feed screw 688 rotates and passes through a nozzle 686 in the portion 684 connected to the second fan. Rotate the screw 移动 to move the mold 682 'to open or close the jaw assembly 66. 21A-B, a specific embodiment of a manual or auxiliary actuating jaw device 700 is explained in a side view and a top view. The jaw device 7 ^ 00 includes a first jaw segment 710 and a second lost-shoulder segment 720 connected by a pivot 702. The first and second jaw segments 71 and 72 have jaw faces 7i2 and 722, respectively. These jaw faces 712 and 722 are preferably tortured to clamp the pipe joints of the pipe system (not Icon). A self-extensible handle 714 (for example) is protruded from the first segment. A rotatable connector 730 and a nut connect the first and second jaw segments 710 and 720. The rotatable connector 73G has, by means of a pivot pin, an end portion 732 which is connected to the first sector 7). As shown, the end portion 732 and the pin are better positioned within the recess 716 defined in the first sector 71 (). The threaded end 736 of the movable connection 11 730 is installed in the eighth end 724 of the second flat section, and the nut 740 is screwed onto the threaded end 736. Preferably, the sub-i end 724 defines a shape that allows one of the round ends of the nut 740 to rest against it. 86146.DOC -30- 200400091 Surface 7 2 6. If you need to clamp a pipe joint (not shown), you should make the first and second jaw fans y I, 7 10, and 720 to surround the pipe joint, and turn the connector 730 on the pin 732 to The threaded end 736 of the rotatable connector 730 is installed in the blade 724 of the second sector 720. Thereafter, the nut 740 is screwed onto the threaded end 73 6 to close the jaw faces 712 and 722 of the sector segments 710 and 720 against the pipe joint. Nut 740 can be tightened using a standard ratchet and socket or by using a ratchet socket wrench (for example). Referring to FIG. 22, a specific embodiment of a manual clamping device 800 is illustrated. The child jaw device 800 includes first and second jaw segments 810 and 820 connected by a pivot 802. The sector segments 81 and 820 define a clamping surface 812 and 822, respectively, to better clamp a PEX type pipe joint (not shown). A driving screw 830 has a first trunnion 832 rotatably mounted thereon. One end of the driving screw 830 is rotatably connected to the second trunnion 834. The first trunnion 832 is located in one end portion 814 of the first sector segment 810, and the second trunnion 834 is located in one end portion 824 of the second sector segment 820. The end 814 of the first sector segment 81 can be bifurcated, so that the driving screw 830 can be inserted therein when the clamp device 800 is placed on the pipe joint. The drive screw 83 has a head 836 for rotating the drive screw 830 using a standard ratchet and socket or using a ratchet socket wrench (for example). The driving screw 830 is preferably a 1-inch feed screw. When hanging a pipe joint (not shown), the clamp device 800 opens and closes like a hinged pipe. The first and second sector segments 81 and 82 are wrapped around the pipe joint, and the driving screw 83 is rotated around the second trunnion 834 to position the first trunnion 832 on the end 814 of the first sector 810 . Use a standard thereafter

86146.DOC -31-200400091 ratchet and sleeve or a ratchet sleeve wrench to rotate the drive screw 8 3 0, so that the first trunnion 832 moves on the drive screw 830 and closes the first and second sectors around the pipe joint Paragraphs 810 and 820. 23 and 24A-B, these figures illustrate another embodiment of a manual jaw device 850. In FIG. 23, the jaw device 850 includes first and second jaw segments 860 and 870 connected by a pivot 852. The segments 860 and 870 define a clamping surface 862 and 872, respectively, to better clamp a PEX type pipe joint (not shown). The sector segments 860 and 870 are preferably investment cast using matched symmetrical molds. The first nut 882a is screwed to one end of the driving screw 880 to engage one end 864 of the first sector 860. A second nut 882b is connected to the other end of the driving screw 880 to engage one end 874 of the second sector 870. As best shown in the top view of the second sector segment 870 in FIG. 24A, the end 874 of the second sector segment 870 preferably defines a closed slot to facilitate the drive screw 880 to pass through and move. In the same way, the end portion 864 of the first sector 860 also preferably defines a closed long hole to facilitate the passage and movement of the driving screw 880 ° as best shown in Figure 23, each nut 882a, 882b Each has a rounded end portion 884 to engage the end portions 864 and 874 of the sector segments 860 and 870 and rotate against the end portions. In addition, the nuts 882a, 882b each have a head 886 for rotating the nut using a standard ratchet and socket or using a ratchet socket wrench (for example). As best shown in the detached view of Fig. 24B, the first nut 882a engaged with the first sector 860 has a threaded hole 887 for screwing to the driving screw 880. The second nut 882b engaging the second sector 870 has a square hole 888 mounted on the end of the driving screw 880 and is used to fix the driving screw 880 when tightening 86146.DOC -32- 200400091. If a pipe joint (not shown) is clamped, the first and second sector segments 86 ° and 〇 4 & joints are required, and the driving screw 83 ° is passed through the sector segments and holes = 864 and 874. The second nut ⑽ and the second shoulder-shaped segment are requested to the foot field # 874, and the first nut 882 is turned onto the end of the driving screw 880 to engage the end 864 of the first sector 860. The second nut 88 沘 can be tightened with a wrench, while the first nut 882a is rotated on the drive screw _ using a standard ratchet and socket or a ratchet socket wrench, so that the first and second sector segments = 0 and 870 is closed around the pipe joint between the jaw faces 862 and 872. The description of the preferred embodiments and other specific embodiments is not intended—or to limit the scope or applicability of the disclosed inventive conception conceived by the applicant. In exchange for the concept of the invention contained in this article, the application: I hope to have all the patent rights in the attached patent scope. Therefore, " Wang Ben Moming includes all modifications and variations to the greatest extent, ^ Li-Wang Bugui ^ Please refer to the scope of the patent scope or its synonymous scope ^ for details of the specific embodiments above. The descriptions can be summarized as the abstract, the preferred embodiment, and other aspects that are best marked by the Chinese A. Brief description of the drawings: Figure A, WE, Figure WE, Figure M ', Figure 5 and Figure M · 15 are the current month :: Secret explanation: a clamp device with a flexible member in its capacity and its components I Various views of the example; FIG. 7, FIG. 8A, FIG. 9 and FIG.

86146.DOC • 33 · 200400091 Various views of the second specific embodiment of the device for analyzing and clamping the component; and 10 and FIG. 11 are the device and the component of the orange clamping device with a flexible component in the specific explanation of the present invention Various views of the third specific embodiment; Figures 12 and 13 A-C are various views of a specific embodiment of a clamping device and a component thereof having a clamping chain in a specific explanation of the present invention; Figures 14, Figures 15 and 16 illustrate a specific embodiment of a widower device that can be used in a rotary drive device; Figure ⑽ Figure 丨 can be explained-the rotary drive device and other specific jaw devices that can be touched from multiple directions by the rotary drive device Embodiments ;, FIG. 19, FIG. 2G, and FIG. 21 A and B explain specific embodiments of the clamp device using a manual or auxiliary action to loosen the pipe joint; and FIG. 22, FIG. 23, and FIG. 24A-B explain the use of manual or Other specific embodiments of the clamping device for assisting the action to clamp the pipe joint. Although the disclosed jaw device is susceptible to various modifications and alternative forms, the drawings of the present invention and the present specification still show and explain in detail specific embodiments thereof by way of example. The drawings and text description are by no means intended to limit the scope of the disclosed inventive concept in any way. Description of Symbols of Drawings 10 Clamping device 12 Pipe joint 13 Pipe 20 Clamping device 30 Clamping device 60a Clamping ring sector 86146.DOC -34- 200400091 60b Clamping ring sector 62 Hook or slot 62a Pivot port 62b Pivot port 66 Pivot point 100 Actuating assembly 110a First actuator element 110b Second actuator element 112a Cam surface 112b Cam surface 114 Fishing 114a Pivot hole 114b Frame shaft hole 116a Stop hole 116b Stop hole 118a Bifurcation End 118b bifurcated end 119a hook 119b hook 120 side plate 120a first side plate 120b second side plate 130a first pivot pin 130b brother second frame pin -35-

86146.DOC 200400091 140a Stop pin 140b Stop pin 142 Axial groove 143 Pressure plate 144 Slot or slot 150 Flexible member 151 Strip 152 Inner band 154 Outer band 156a First annular end 156b Second annular end 158 annular end 160a Coupling 160b Coupling 162 Fastener or pressure plate 164 Fixing pin 166 Ring 170a-b Locking element 171 Spring-loaded ball lock pin 172 Hole 180 Stop lock 190 Engaging element 192a First roller 192b Second roller 86146. DOC -36- 200400091 200 Clamp assembly 202 Inner surface 204 Outer surface 210a Fan segment 210b Fan segment 210c Fan segment 212 Inner surface 214 Flange 230 Frame pin 230a Frame pin 230b Frame pin 232 Stop plate 250 Flexible member 252 Inside With 254 outer part 258 opening 260 solid element 262 ridge 300 pliers chain 310 roller 312 pin 320 key link 320a inner link 320b inner link -37-

86146.DOC 200400091 322 Edge 324 First 孑 L 326 Second hole pitch 330 key joint 330a outer key joint 330b outer key joint 340a stop pin 340b fixed stop pin 350a first end roller 350b second end roller 402 Jaw assembly 410 jaw assembly 412a first sector 412b second sector 414 frame pin 415 inner surface 419 bifurcated end 420a first trunnion 420b second trunnion 430 drive screw 440 transmission mechanism or gear mechanism 450 rotation Drive 452 Shaft 86146.DOC -38- 200400091 460 Attachment 470 Clamping device 472 Clamping assembly 474a First sector 474b Second sector 475 Inner surface 480 Transmission mechanism or gear mechanism 482 Drive gear 483 Shaft 484a One spur gear 484b Second spur gear 485a Drive screw 485b Drive screw 500 Clamp assembly 510 Drive screw 520 Universal joint 530a First coupling arm 530b Second coupling arm 532a Port end 532b Port end 534b Threaded hole 550 Assembly 560 Drive screw 562 First threaded portion 86146.DOC -39- 200400091 564 Second threaded portion 570 Gear Structure 580a first trunnion 580b second trunnion 600 jaw device 610 jaw assembly 612a first sector 612b second sector 613 handle 614 pivot 616 inner surface 620 lever mechanism 622 lever arm 624 first pin 630 lock Hook mechanism 632 Second pin 634 Pin or pin 650 Clamping device 660 Clamp assembly 662a First section 662b Second sector 664 Pivot 666 Inner surface 670 Lever mechanism 40-

86146.DOC Frame shaft locking / unlocking mechanism Surface wedge mechanism Partially open to the second sector segment 662b Feed screw clamp device frame shaft First clamp sector segment gripping surface handle groove Second clamp sector segment clamp Clip face bifurcated end modeled surface rotatable connector connected to the end frame pin thread end nut of the first sector 710 manual clamping device -41-200400091 802 stern shaft 810 first sector 812 jaw surface 814 first End 820 of sector 810, second sector 822, clamping surface 824, end 830 of second sector 820, driving screw 832, first trunnion 834, second trunnion 836, head 850, manual clamping device 852, pivot 860, One jaw segment 862 jaw face 864 end 870 of the first sector 860 second jaw segment 872 jaw 874 end of the second sector 870 880 driving screw 882a nut 882b nut 884 round end 886 head 86146.DOC -42- 200400091 887 888 threaded hole square hole

86146.DOC -43-

Claims (1)

200400091 The scope of patent application: 1. A kind of rotation-driven device to actuate: & coupling device, one of which has at least two pivotally coupled sector segments of a clamp ring; one coupled to the rotation The screw of the driving device;-the first component-its-to the at least two first-sector segments; the material-receiving sector: the second component, its Korean Union to the at least two pivotally connected second sector segments; and The screw is coupled to the first and second members, so that at least one of the members can be transported along the screw when the screw is turned to open and close the clamp ring. 2. The device according to the patent application page, wherein the first member is rotatably attached to the first section of the at least two pivotally coupled sector sections. 1 groove 3. According to the scope of patent application! The device of claim, wherein the first member is removably positioned in a cavity on the end of the first sector of the at least two sector segments in a detent, a slot, or a bifurcated end. 4. The device according to item 3 of the scope of patent application, wherein the first member defines-a modeled surface to engage the grooves, cavities, hooks, and hooks on the ends of the first sector of the at least two sectors. Child, slot or bifurcated end. 5. The device according to the scope of application for patent application, wherein the first member includes a trunnion screwed onto the screw. 6. The device according to item 丨 of the patent application scope, wherein the first member includes ~ 86146.DOC 200400091 a nut screwed onto the screw. 7. The device according to item 1 of the patent application scope, wherein the first member includes a pin attached to the screw. 8. The device according to item 1 of the patent application, the steps of which include -_ & rotation between the rotation drive field and the Lang rod and transfer the rotation county from the rotation drive device to the screw-like transmission mechanism. 9. The device according to claim 8 of the patent application, wherein the transmission mechanism includes at least one of a clamp, a plurality of gears, a universal joint, and a torque clutch. 10. According to the device of the scope of application for patent β, the screw in this case includes first and second threaded portions having opposite threads. 11 The device according to item 丨 of the patent application, wherein one of the at least two pivotally coupled sector segments can be attached to the rotary driving device. 12. A device driven by a rotary drive device to clamp a pipe joint, comprising: a segmented jaw assembly; a drive member ballasted to the rotary drive device and receiving its output; The driving member is coupled to the segmented jaw assembly; and a device for driving the segmented jaw assembly by rotating the driving member. 13. The device according to item 2 of the patent application park, wherein the device for coupling the driving member to at least one of the sector segments includes a means for detachably coupling to at least one of the sector segments.一 的 装置。 One device. 86146.DOC 200400091 14-The device according to item 12 of the patent application scope, wherein the driving member can be coupled to the rotary driving device from multiple directions. 15. The device according to item 12 of the claim, further comprising a device for controlling the output of the rotary driving device to the driving member. 16. · A device for clamping a pipe joint, comprising: a rotary driving device; a cooling ring having at least two frame-connected fan segments; and a light coupling to the rotary driving device and coupled to The at least two pivotally coupled sector segments are used to open and close the screw of the jaw ring when rotated by the rotary driving device. 17 · A device according to item 16 of the patent application scope, comprising: a first trunnion coupled to a first sector of the at least two sectors; and a second sector coupled to the at least two sectors In the second trunnion, f, the screw can rotate and pass through at least one of the trunnions, so that when the screw rotates, at least one trunnion moves along the screw. 18. The device according to item 17 of the patent claim, wherein at least one trunnion is detachably attached to one of the at least two segments. 19. The device according to claim 16 of the patent application scope, which includes a first arm with a modeling surface, which is detachably located in a recess defined in the first sector of the at least two sectors And a second arm having a modeling surface in the slot, the second arm being detachably located in a second sector segment defined in the at least two cymbal segments, wherein the screw can be screwed through at least the arms ―Arm: When the screw rotates, the at least-arm can move along the screw.备 86146.DOC 200400091 2 〇 · According to the patent application Fan Ye Fan La Lashi Ben Ben 161 true device, where the screw __ mountain cabinet is attached to the at least rain shore ^ pole…, The first fan-shaped segment in the segment is screwed on one end of the reading screw to scare the heart brother—bearing the nut. The second segment of at least two segments of the stub & child 21. The device according to the scope of patent claim M includes: κ attached to the screw and drinking the second segment of the at least two segments-Fengyou A first nut; and a second nut attached to the stern rod and mingling the second sector of the at least two sector segments, wherein at least one of the nuts is screwed onto the screw. The device according to claim 16 of the stated patent scope, further comprising a transmission mechanism coupled between the side rotation driving device and the screw and transmitting rotary motion from the rotation driving device to the screw. 23. The device according to item 22 of the scope of patent application, wherein the transmission mechanism includes at least one of a gear, a universal joint, and a torque clutch. 24. The device according to item 16 of the scope of patent application, wherein the rotary driving device is selected from the group consisting of a manual drill, a pneumatic drill, an electric drill, a sleeve, a ratchet, a wrench, and a screwdriver. Ethnic group. 86146.DOC -4-