TWI283610B - 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 is 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

1283610 玖 发明 发明 发明 发明 相关 836 836 836 836 836 836 836 836 相关 836 836 相关 相关 相关 相关 相关 相关 相关 相关 相关 相关 相关 相关 相关 相关 相关 相关 相关 相关 相关 相关 相关 相关 相关 相关 相关 相关 相关 相关 相关 相关 相关 相关 相关") and U.S. Provisional Patent Application No. 6/389,218 (filed on June 17, 2002, entitled "The Assembly of the Joint Pliers and Actuator"), the applications The entire contents of the present invention are incorporated herein by reference. TECHNICAL FIELD OF THE INVENTION The present invention generally relates to a tool for clamping a & joint that can connect various sections of tubing, and more particularly, Regarding the clamping device for clamping the pipe joints, a compression type pipe joint is usually a tubular sleeve f made of plastic or metal and containing a sealing member, which is required to be connected between the ends of the two pipes. The pipe joint is sleeved on the ends of the pipes, and then the pipe joint is radially compressed to make a leak-proof joint between the ends of the pipes. The joint has a considerable mechanical strength f and is self-supporting. - a clamping tool (as known in the art) Clamping tool) presses the pipe joint to the end of the pipe... A typical jaw tool includes at least two arms or jaws that can be moved using a drive mechanism (eg, a hydraulic piston from the hydraulic pressure of a pump in the tool) In some embodiments, at least a portion of the arms can be moved inward during the clamping operation to directly clamp the pipe joint. In other embodiments, the arm of the rotary drive can be actuated - The central ring of the clamp pipe joint. u 'The orange clamp ring includes two or more clamp ring segments connected to the _.

86146. DOC 1283610 The rotary drive arm of the jaw tool is coupled to a pivot port or indentation defined in the opposing jaw ring segment. In general, the clamp ring can be used to clamp a pipe joint having a diameter greater than about 2.5 inches. Some existing jaw clamps can be used for diameters as small as 42 mm (i.e., British), for example, Novopress manufactures multi-segment jaw clamps for Mapress pipe joint systems. Unfortunately, the jaw tool does not always ideally or nearly ideally clamp the tube joint, especially when the tube joint has a larger diameter (e.g., greater than 2.5 inches). In other words, the typical rotary drive and clamp ring assembly according to the prior art may not uniformly apply the clamping force to the pipe joint within the piston displacement range. In addition, the force-displacement profile of prior art jaw assemblies cannot be consistent when used with different size compression fittings and especially for larger diameter pipe joints. Other problems with existing jaw rings include the weight of existing jaw rings, the need to use multiple jaw rings to accommodate different size fittings, and the cost associated with existing jaw rings. Some of the clamp rings in the prior art are intended to facilitate the clamping of the clamp ring around a pipe joint = closed. For example, U.S. Patent No. 5,598,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, In another example, U.S. Patent No. 6,58,7, discloses a compression clamp ring that includes a leaf spring located outside the jaw link to facilitate the placement of the ring. On the pipe joint. In the re-example, U.S. Patent No. M58,755, the entire disclosure of which is incorporated herein by reference. The present invention is directed to overcoming or at least reducing the effects of one or more of the problems described above.

86146. DOC 1283610 SUMMARY OF THE INVENTION The present invention discloses an apparatus for clamping a pipe joint. In one embodiment, the device includes a flexible band, a jaw assembly, and an actuation assembly. The pliers cool assembly wraps around the pipe joint. The flexible member wraps around an outer surface of the jaw assembly and has a first end and a second end. The first and second stop members are located at the end of the flexible member and coupled to the actuator arm. In another embodiment, the flexible band is mounted against the pipe joint to clamp the pipe joint. In still 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 drive arm is removably coupled to one end of the jaw chain. The coupling element of the clamp chain wraps around the pipe joint and has a surface for clamping the pipe joint. The present invention discloses a device for actuating a tube connector by a rotary drive. In a specific embodiment, the device includes a jaw ring having at least two jaw ring segments that are pivotally coupled together for clamping the pipe joint. The first member (for example, the trunnion or the arm (four) is combined with the first segment of the at least two segments, and the second such member (four) is combined with the second segment of the at least two segments. The town is coupled to the rotary drive: the screw is coupled to the first and second members such that when the screw is rotated, at least one of the members of the member can move along the screw. In the embodiment, the Z rotary drive is borrowed. The _transfer machine is coupled to the screw to revolve the rotational motion of the drive device to the screw. The transmission == gear 'or may include a - universal joint. The rotary device may be a canister, or may Is a sleeve or a ratchet. The abstract is not intended to illustrate the pertinent and specific aspects of the subject matter of the present invention.

86146.DOC 1283610 Embodiment. Embodiment A_Clamping Device with Belt System Referring to Figure 1, there is illustrated a jaw device 10 for clamping a pipe joint 12 to a tube 13. The jaw assembly 10 includes an actuation assembly 1〇〇 and a jaw assembly 200. The actuation assembly 1 can include a clamp mechanism, a scissor mechanism, a jaw mechanism, a vise mechanism, or a tool known in the art for use by a hydraulic drive or the like (not shown). A mechanism that clamps the force. The actuation assembly 100 includes first and second actuator elements or arms a and 110b, first and second side panels i20a and (a side panel not shown), and first and second pivot pins 130a and 130b. The first and second actuator elements 11a, ab are substantially identical and are symmetrically arranged in the jaw assembly 1A. The first and second rotary drive arms 110a and 11b include a cam surface 112a and 112b, a pivot hole 114a and 114b, a stop hole 116a and 116b, and a fork end 118a and 118b, respectively. The pivot holes 114a and 114b receive pivot pins 130a and 130b which are rotatable about the rotary drive arms ii 〇 a and 11 〇 b. The stop pins 116a and 116b defined in the branch ends 118 & and 118b receive the stop pins i4a and 140b described below. The actuator elements 110a and 110b are supported by the side plates 120a and a side plate (not shown). The pivot pins 130a and 130b are pivotally connected together. The side panels 120a are substantially identical and are disposed in parallel with each other on either side of the assembly 100. The pivot pins 130a and 13Ob extend through the side plates 120 and extend through the pivot holes 114a and 114b in the actuator members 110a and 110b. Retaining rings (not shown) are disposed at the ends of the pivot pins 130a and 130b to fix the actuating assembly 1 一起 together. 86146.DOC -9- 1283610 The jaw assembly 200 wraps around the pipe joint 12 and is removably attached to the actuating assembly 100. The jaw assembly 200 has an inner surface 202 and an outer surface 204. Inner surface 202 can define an internal dimension for clamping tube fitting 12. The jaw assembly 200 includes two segments 210a and 210b joined by a connector or pin 2 3 ;; however, it will be appreciated that the jaw assembly 2 can have more than two segments. As best seen in the cross-sectional view of Fig. 2A, the segments 21 (^ and 21) are coupled together by a pivot pin 230 secured by a stop platen 232. Each segment 210a and 210b includes an inner surface 212 therein. The surface 212 can include a 'flange 214. In Fig. 1, the jaw device 10 also includes a flexible member 150 coupled to the actuation assembly 1〇〇 and the jaw assembly 200. The flexible member 15 is a Narrow strips, straps, loops, belts, strips or similar members. Flexible member 15 can be woven or evenly reinforced with poly(p-xylylene terephthalamide) (KEVLAR), other nylon-based polymers, nylon or a high strength Made of material or metal. The flexible member i 5 〇 is preferably a continuous seamless belt and is preferably made of KEVLAR. The flexible member 150 includes an inner belt 152 and a rim that can form an annular end 15 to 15 讣The outer band 154. The continuity of the flexible member 15 ensures strength and eliminates the need for additional elements or fasteners attached to the band and coupled to the actuator assembly. The member 丨5〇 wraps around the outer surface 204 of the jaw assembly 2. The couplers i60a and 160b secure the flexible member 150 To the jaw assembly 20 〇, but providing sufficient clearance to allow relative circular movement between the flexible member 15 〇 and the segments 21 〇 & 21 〇 b. In addition, the jaw assembly 2 〇〇 can define a An outer groove (not shown) to accommodate the flexible member 15 therein. Or the 'flexible member 150 can be used without the jaw assembly described above.

86146.DOC 1283610 Use in case. In this alternative embodiment, the flexible member 150 can be, for example, a chain, a plurality of coupling elements, or a metal strip that directly wraps around the tubular joint 12 and defines a crimping fitting 12 The inner surface. Each of the actuator elements 110a and 110b receives the annular ends 156a and 156b of the flexible member 150 at the bifurcated ends 118a and 118b. The split ends 118a and 118b of the actuator elements 11a and 110b move relative to each other. As the split ends ii8a and 118b move toward each other, a dimension defined by the flexible member 15A will change, thereby closing the jaw assembly 2 about the pipe joint 12. The bifurcated ends 118a and 118b can further define a surface for direct contact and clamping of the tubular joint 12 in a midline gap formed between the segments 21a and 210b of the jaw assembly. The flexible member 150 is coupled to the first actuator element 11A and coupled to the second actuator element 110b. The first annular end 156a is positioned in the bifurcated end 118& and the stop pin 140a passes therethrough. The first annular end portion 15 is rotatable about the movement of the stopper pin 140a and the center of the stopper pin 14A. At least one of the annular ends 156a and 156b is removably coupled to a furcation end hub 118b. For example, the second annular end 156b can be positioned in the bifurcated end 118b and the second stop pin 14b can pass therethrough as described below. It should be noted that the retaining pin 140a or 140b attached to one of the actuator elements 11 (^ or 11〇b in a fixed manner may hinder the replacement of the flexible member 15 and the use with the rotary drive unit 1 The device is not suitable for use when the rotary drive is to be used with a different size clamp ring. Alternatively, as illustrated in Figure 3A, the flexible member 15 can be a An integral strip 151 of material joined together at ends, thereby forming a strip 151

86146.DOC -11- 1283610 Continued Flying 敕 Unlike the continuous seamless belt set forth above in Figures 1 and 2, the end of the strip 151 is joined at 161. For example, as shown in the figure, by splicing together the ends of the integral strips 151 made of fibers (e.g., KEVLAR), the end connections at 161 can be achieved. However, end joining is accomplished by a number of means known in the art for joining the ends of the material, including but not limited to gluing or riveting. As with the continuous belt described above, the flexible member 15A can be an integral strip 151 having a mechanism or structure for forming the end of the loop. For example, as illustrated in Figure 4A, a fastener or platen 162 can hold one end of the strip 151 to form an end portion 15 8 for receiving a stop pin (not shown). Alternatively, as illustrated in Figure 4B, a loop, ring or other similar structure 166 can be attached to the end of the unitary strip 15 by a fastener or platen 164. The ring 66 can accommodate a stopper pin (not shown) to connect the flexible member 15 5 to a rotary drive arm (not shown). To place the jaw device 10 on the fitting 12 of Figure 1, the jaw assembly 200 is required to open only the first annular end 156a of the flexible member 150 to the actuation assembly 100. The jaw assembly 200 is wrapped around the fitting 12. Thereafter, the first annular end portion 15 6b is placed in the divided end 11 gb of the second actuator element 11 〇b. As best shown in Fig. 2B, the second or detachable stop pin 140b is inserted into a stop hole 116b defined in the split end 118b of the second rotary drive arm 1 lb. The detachable stop pin 140b passes through the second annular end 156b of the flexible member 150. Therefore, the second annular end portion 156b is detachably coupled to the second actuator member 11b and movable therewith. As noted above, one or both of the stop pins 140a or 140b can be removed from the aperture 116a or 116b of the actuator 86146.DOC -12-1283610 component 110a or 110b to permit one of the annular ends 156a or 156b to be decoupled. . Preferably, both of the stop pins i4a and 140b allow the annular ends 156a and 156b to be decoupled from the ends 118a and 118b, thereby enabling the rotary drive 100 to be used with different sized jaw assemblies. Alternatively, one or both of the stop pins 140a or 140b can be retracted. For example, as best shown in Figure 2B, the stop pins 140a and 140b can define an axial slot 142. The locking member 170 of Figure 1 can be inserted into the bifurcated ends 118a and 11 8b and placed in the axial slots 142 such that the pins 140a and 140b cannot be completely removed from the apertures 116a and 116b. The locking member 170 disposed in the axial slot 142 allows portions of the pins 140a and 140b to move axially within the apertures 116a and 116b to disengage the pins from the annular ends 156a and 156b of the flexible member 150. The locking members 170a and 170b can further prevent the pins 140a and 140b from rotating within the stop holes 116a and 116b. However, it is not absolutely necessary to prevent the pin 14 (^ and 14〇13 from rotating. Therefore, another structure, such as an annular shoulder (not shown) on the pin 140a or 140b, can be used with the locking member 170, thereby not only The pins are retractable and allowed to rotate. Referring to Figure 5, further details of the jaw device 1 will be further explained below. An engagement member 190 is positioned between the rotary drive arms 11 (^ and 11〇b. Element 190 is part of a jaw tool (not shown) for actuating jaw device 1 . Engagement element 190 is, for example, a roller holder including first and second rollers 192a and 192b. The roller bearing 19 is moved by a rotary drive. The rotary drive can be, for example, a hydraulic piston (not shown) of a jaw tool. The rollers 192a and 192b engage the rotary drive arm 11a. And cam faces 112a and 112b of ll〇b. The rollers 192a and 192b apply a force on the cam faces 86146.DOC-13-1383610 112a and 112b such that the rotary drive arms 11 (^ and 11〇13 surround the pivot pin 13) Rotating with 130b. When with flexible member 15〇 annular end 156 & 15 still When the driving pins 140a and 140b are brought together, a force will be generated. For example, if the rotary driving device applies a 32 kilonewton output force to the roller bearing 190, each roller 192a and 192b will be subjected to A force of 16 kilonewtons. When the force of 16 kilonewtons is applied to the cam faces 112& and 112b, the force N generated on the actuator elements 110a and 1bb can be about 92 kN, which is N Initially applied to a pivot 13 of the actuator element 11 amp & and u 〇 b (where is a distance from the 130b. A moment will be generated on the actuator element 11 (^ and 丨丨〇b). The actuator elements 11 (^ and 11 〇 13 will rotate about the pivot pin 13 (^ and 13 。.) When the stop pins 140a and 140b spaced apart from the pivot pins 130a and 130b are moved together, a clamping force P1 will be generated. The jaw force is applied to the flexible member 15A. It should be understood that the numerical values given herein are merely exemplary numerical values and depend on several design factors such as size, geometrical arrangement, tolerances, etc. Flexible member 150 The force P2 is schematically distributed around the outer surface 204 of the jaw assembly 2. The flexible member 150 applies the force p2 evenly to the wrapped joint. Most of the outer surface 204 of the clamp ring 200. If the force p2 is assumed to be the yield strength of a pipe joint made of tin bronze, for example, the force p2 is approximately 15 〇 Newtons/cm 2 or about 21, 755 psi. For a 2.5 inch diameter pipe joint 12, the flexible member 150 may have an initial radius of about 16 〇 4 inches; for a 3 inch diameter pipe joint, the flexible member 15 The initial radius of the crucible may be approximately 1.880 inches; for a pipe joint having a diameter of 4 inches, the initial radius of the flexible member 150 may be approximately 2.382 inches. For a 4 inch diameter pipe joint, the force Pi at the annular end 86146.DOC - 14 - 1283610 156a and 156b of the flexible member 15 can be calculated to be about 25,909 lbs/inch. Therefore, a flexible tape 150 made of KEVLAR for clamping a 2.5- to 4-inch pipe joint is subjected to a force of at least 26,000 pounds without damage. The general width Wi of such a flexible member 150 is preferably 1.75 inches or more. The above values are merely exemplary values which are used to clarify certain exemplary dimensions and exemplary forces of a particular embodiment of the jaw device 10. Those skilled in the art will be able to utilize the present invention to select and design other possible embodiments having different structural, geometric or material constraints. Referring to Figure 6A, the jaw assembly 10 of Figure 5 and other details and elements of the present invention are shown in cross-section in A-A. As described above, the stop pin 14 can define a slot 142. The bifurcated end 118b can define a bore 172 for receiving a locking member 170b. As shown in Figure 5, the first stop pin 140a and the split end 118a can also include a similar locking element 170a. Preferably, the locking element i70a_b is a spring loaded locking element. As shown in Figure 6A, one end of the spring loaded locking element 170b is located in the slot 142. When the locking element n〇b is spring loaded, the pin 140b can be inserted into the diverging end 11 8 and then engaged by the locking element 丨7〇b. The spring loaded locking member 170b prevents the detachable stop pin 140b from rotating within the stop hole 116b. Furthermore, the frictional force exerted by the spring-loaded locking element 17〇b on the pin 14〇b can axially fix the pin 14〇b in the diverging end U8b, thereby keeping the pin 140b in a clamping process Closed position. Alternatively, as shown in Figure 6B, the aperture i 72 in the bifurcated end 118b can receive a spring loaded ball lock pin 171. The actuator element 11 〇b includes a stop locking device 180 adjacent to the detachable pin (10). For example, the stop lock 18() includes a bearing and 86146.DOC -15-1283610. The stop pin 140b can define a slot or slot 144 for receiving the bearing of the stop lock 18 〇. The stop lock 18 讥 secures the stop pin 14 于 to the clamp, but allows the pin 14 〇 b to be removed from the stop 116b when the offset of the lock 180 is overcome. If the spring loaded ball lock pin 171 shown in Fig. 6B is used in the hole 172, it is not necessary to use the stopper locking device 丨8〇. As best shown in Figure 5, the width of the opening defined in the split end U8b of the actuator element u〇b is, for example, about 2.125 inches. The width W2 of the flexible member 15 is, for example, about 2 inches. As described above, the maximum bending stress on the stop pin 14〇1) can be calculated using an exemplary force of about 25,909 pounds acting on the flexible member 150. For example, if the diameter of the pin 14〇b is Da! inches, the maximum bending stress on the pin 140b is about 140,400 ounces per square inch. If the pin 140b has a diameter of 1.25 inches, the maximum bending stress is about 71,782 pounds per square inch. The above calculations are merely exemplary calculations, and such calculations are used to clarify certain exemplary dimensions and exemplary forces of one embodiment of the jaw device 10. Those skilled in the art will be able to utilize the present invention to design and analyze other possible embodiments with different constraints. Referring to Figures 7, Figures 8 and 9 and Figure 9, there is illustrated another embodiment of the jaw device 2 of the present invention. In Fig. 7, an actuating assembly 100, a flexible member 150 and a jaw assembly 200 are illustrated in a top view. In Fig. 8A, a cross-sectional view of the flexible member 15A of one of the segments 210a of the jaw assembly 200 is illustrated. In Fig. 8B, a cross-sectional view of a stop pin 140a and one annular end 156b of the flexible member 150 are illustrated. In Fig. 9, one of the actuator ends 110a of the actuator assembly 110a is illustrated in a perspective view. Referring to Figure 7, the flexible member 150 wraps around one of the outer surfaces of the jaw assembly 200 2〇4 86146.DOC -16-1283610. In this particular embodiment, the jaw assembly 200 has three coupling segments 21〇 aC. In a particular embodiment, the segments 210a-c are coupled together by pivot pins 230a and 230b. The pivot pins 230a and 23Ob can further include a torsion spring (not shown) to bias the jaw assembly 2〇〇 to a closed position as shown. Alternatively, the segments 21a-c can be joined by other structures not known in the art that do not use a pivot pin. For example, the segments 210a-c can be joined together by a slotted joint. In this particular embodiment, the flexible member 150 is a continuous strip that includes an inner strap 152 and an outer strap 154 that are continuously joined and form first and second annular ends 156 & 156b. As best shown in Figure 7, the coupler 16 (" and 16" (such as the coupler described above) secures the flexible member 丨5〇 to the jaw assembly 2' but provides sufficient clearance to allow The relative movement between the flexible member 15A and the segments 21a and 210b. Further, the couplers 16A & 16b can be used to maintain the size and shape of the loops in the ends 156a and 156b. A pin 164 is threaded through the flexible member 15 to secure the member to the jaw assembly 2A. As best shown in cross-sectional view aA of Figure 8A, the jaw assembly is segmented (e.g., as shown The segment 21a) includes a strip 152 and 154 having an inner surface 212 having a flange 214 and defining a slot 215 for receiving the flexible member 15a. Each of the annular ends 15^ and 156b of the strap 150 is A stop pin 140a and 140b is included. The stop pins i40a and 140b are detachably coupled to the actuator elements 110a and 11b. As best shown in the cross-sectional view of FIG. 8B, the stop pin 140a is located at the flexible member 150. In the annular end portion 15 6a, and the end of the pin 140a extends from the annular end portion 156a of the flexible member 150. The stopper pin 140a includes Attached to the pin in a fixed manner or 86146.DOC -17-1283610 shoulder or flange 142 that can be secured by a pressure plate 143. In Figure 9, the actuator element or armature is illustrated in a perspective view. a forked end 118a of a. Each forked side of the split end 11 8a defines a hook, groove or detent 119a. As described above, the hook 1 i9a detachably couples the freedom of the stop pins MOa and 140b The actuator assembly 1 includes two actuator elements 110a and 110b having bifurcated end turns 18a and 118b and hooks 119a and 119b for engaging the stop pins 140a and 140b. Other embodiments of the actuating assembly 1〇〇 It may comprise only one actuator element 110 having a hook for detachably coupling to a stop pin. In this particular embodiment, the other actuator element may comprise a retractable stop pin, for example on Referring to Figures 10 and 11, these figures illustrate, in cross-section, a further embodiment of the jaw assembly 30 associated with the fitting 12 of the present invention in a cross-sectional view. The jaw device 3 includes a first and a first The second actuator element or the arm 11 〇 & ll 〇 b actuation assembly 1 〇〇. The first and second rotary drive arms 11 (^ and 11 〇 1) respectively include a cam surface 112a and 112b, a clamp Faces 116a and 116b, a pivot pin 130a and 130b, and a stop pin 140a and 140b. The pivot pins 130a and 130b are located in holes defined in the rotary drive arm to enable the arms to rotate on the pin. 120a) is coupled to pivot pins 130a and 130b to interconnect arms 110a and 110b. The stop pins 140a and 140b are removably located in the holes at one of the ends of the arms and pass through the slots 118a and 118b at the ends of the arms. A flexible member 250 is attached to the actuation assembly 100. The flexible member 25 is a continuous strip having annular end portions 156 & 156b formed by an inner portion 2 5 2 and an outer side 86146.DOC -18-!283610 portion 254 which are continuous with each other. The annular end 15 wraps around the stop pins 140a and 140b with 15 turns. The strap 250 forms an opening 258 that directly surrounds the fitting 12. When the rotary drive unit 310 is actuated by a tool (not shown), the actuator members 110a and 11b will rotate about the pins i3a and i3b, thereby causing the stop pins 140a and 140b to move toward each other. Thus, the opening 258 defined by the flexible member 25A will be radially tapered to directly clamp the pipe joint 12. In addition, the jaw face engages the pipe joint 12 with 116b to apply the clamping force to a substantial portion of the periphery of the pipe joint 12. As noted above, the flexible member 250 can be constructed of poly(p-xylylene terephthalamide) (KEVLAR), other nylon-based polymers, nylon, or a high strength woven or uniform material or metal. In a one-month embodiment illustrated in the perspective view of Figure U, the flexible member 25 can include a plurality of solid members 260 attached thereto for contacting the tube joint. The solid elements 260 can be constructed of metal that is attached or otherwise attached to a portion of the inner strip 252 that defines the opening of the flexible member 250. The solid element 26 can be beneficial for applying the clamping force directly to the pipe joint. The solid element 260 can also include a raised ridge 262 for aligning the pipe joint.钳·Clamping device with chain system Referring to Figures 12 and 13A-C, the figures illustrate another embodiment of the jaw device of the present invention. As best shown in FIG. 12, the jaw assembly includes a flexible jaw assembly 300 and an actuation assembly 360. The flexible jaw assembly 3 has both the features and advantages of the flexible member and jaw assembly disclosed herein. The flexible jaw assembly 300 is a clamp chain that includes a plurality of engaging elements. Clamping chain 3〇〇 can be wrapped around one

86146.DOC -19- 1283610 Fitting 12 to clamp the fitting directly to a pipe 13. The jaw chain 3 (8) is preferably capable of applying a clamping force around a substantial portion of the circumference of the fitting. The Fushuang key 300 includes a plurality of segments including a roller or wheel 31〇, a plurality of pins 312, and a plurality of interconnecting members, plates or links 32〇, 33〇. The roller or wheel 310 rotates on a plurality of pins 312 that pass through the rollers 31A. Pin 312 is interconnected by the plurality of interconnecting members, plates or links 32A, 330. In Fig. 13A, a portion of the jaw chain 3〇〇 is shown in a plan view. Roller 310 is rotatably placed on pin 312. The first interconnecting member or inner links 320a-b are placed on either side of the roller 310 and interconnected by adjacent pins 312. The inner side links 320a-b define apertures that will pass through the pins 312 to enable the inner links 320a-b to rotate thereon. A second interconnecting member or outer link 33 is placed on either side of the inner links 320a-b and interconnected by alternating adjacent pins 312. The outer links 330a-b also define apertures that will pass through the pins 312. The outer link can be rotated from the cymbal. A retaining ring (not shown) on the end of the pin 3 12 of the adjacent outer link 33〇a_b can be used to fix the structure together. Alternatively, the inner link 320ab can be rotated on the adjacent pin 312, and the outer link can be press-fitted or clamped on the pin 3 12 of the person, so that the external retaining ring is not needed. 13B is not shown in Figure 13A. One end view of the figure. Figure 1 shows a section of the joint 12 showing the roller 31〇, the pin 312, and the inner link.

And the inner links 320a-b themselves are clamped to the outer side. The prodigal 3 1 〇 has a larger diameter and extends the link mouth. In this manner, the roller 31 can constitute a roller 310 having a width of about 0.188 inches. Rollers and outer links 330a-b. Between the side links 320a-b, between the two links 330a-b. Roll the height of the flanges 320a-b and 330a-b. For example, roll two

86146.DOC -20- 1283610 3 The inner links 320a and 320b on both sides of the 10 can be approximately 344 344 inches wide, respectively. The outer links 330a-b can have a width that approximates the inner links 32A-b. The overall width of the rollers 310 with links 320a-b and 330a-b can be approximately 1.5 inches. Referring again to Figure 12, the actuation assembly 100 includes a first rotary drive arm 11a and a second rotary drive arm 110b. The rotary drive arms n 〇 a and 11 〇 b are coupled to the first and second end rollers 35 〇 a and 35 〇 b of the clamp chain 300. The first end roller 350a is detachably coupled to the stopper pin 340a of the first rotary driving device 。1. The first rotary driving device u〇a includes a fishing 114 on the stopper pin 340a. So that the first end roller 35〇a can be detachably coupled to the first rotary driving device n〇a. The second end roller 350b of the clamp chain 3〇〇 is located at a fixed connection to the second Rotating the fixed stop pin 340b of the driving arm u〇b. The radius of the end rollers 350a and 350b may be larger than the other rollers 310 in the clamp chain 3. The standard pipe joint is a thin-walled pipe joint. During the clamping operation of the jaw ring, a crease or wrinkle is formed between the closed jaw segments and especially between the free ends of the jaw ring. By incorporating a sufficient number of segments, the invention The clamp chain 3 can achieve substantially uniform pipe joint compression. Furthermore, since the clamp chain 300 is substantially perpendicular to the surface of the pipe joint 12, the clamp chain 300 of the present invention can reduce or nearly eliminate the pipe joint wrinkles. Or pleats. Preferably, the 'clamp chain 300 can be effectively used in many sizes. A connector. For this purpose, the jaw link 3 can have a predetermined pitch. The actuation assembly 1 has a position between the actuator elements 34〇& and 34〇b when fully actuated. a midline gap g, so the jaw chain 3〇〇 contains an end gap g.

86146.DOC -21 · 1283610 Chains can be changed so that the end gaps G on different size fittings are close to the phase I' and thus by simply connecting to the chain - different pin positions A single clamp chain fan can be used effectively for pipe joints of many sizes. The distance is determined by the interconnecting members or links 320 and 330. For example, an inner side link 320 is shown in the white η view shown in Figure 13C. The inner link 32 has an edge 322 defined by a radius 11. The inner links 32A also have first and second apertures 324 and 326 for adjacent roller pins (not shown) of the jaw chain. The distance between the holes 324 and 326 determines the pitch of the jaw chain. The pitch can be chosen such that the single (four) can be designed for the head of the country. This pitch selection is a trade-off between variables that primarily include the perimeter of the pipe joint to be applied, the line gap in the rotary drive arm, the tool stroke, and other margins. The outer link has a side configuration substantially similar to the inner link 32〇. C. A folder device actuated by a rotary drive device is shown in Figures 14-16, wherein like reference numerals refer to like elements throughout the drawings, and the figures illustrate the implementation of a jaw device for use with a rotary drive unit 45〇 example. The rotary drive 450 can be, for example, a conventional electric drill having an electric motor, but it should be understood that other rotary tools that provide rotation to drive a screw can be used. For example, the rotary drive unit 450 can be a manual drill, a pneumatic drill, a sleeve, a ratchet, a wrench or a screwdriver. Referring to Figure 14, the jaw device 400 is actuated by a rotary drive or drill 45. The jaw assembly 400 includes a jaw assembly 410 having a first sector 4i2a and a second sector 412b. The first and second segments 412 & 41 are connected by a 86146.DOC • 22-1283610 pivot pin 414, and the jaw assembly 41 defines an inner surface 415 for clamping a pipe joint (not shown) ). The first segment 412a has a first pivot member or ear pump 420a at its end 416a. The second segment 412b has a hook 41 8 on its end 416b. The second pivot member or trunnion 420b is rotatably and slidably disposed in the fishing 418. The hook 418 can be opened to receive or remove the trunnion 42b. A drive member or screw 430 is rotatably coupled to the first trunnion 42a and through the second trunnion 420b. Drive screw 430 is coupled to a transfer mechanism or gear mechanism 440. A rotary drive 450 is coupled to the transfer mechanism or gear mechanism 44A to rotationally drive the screw 430 and open or close the segments 412a and 412b about the pipe joint. The transfer mechanism or gear mechanism 440 allows the rotary drive 45 to be coupled using one or more paths, as illustrated by the drive devices 450 and 450' of FIG. It can be quite beneficial when the space is limited. If the jaw device 400 is to be wrapped around the pipe joint, the drive screw 43 should be pivotally attached to the first trunnion 420a and the second trunnion 420b should be removed from the hook 418. The first and second segments 412a and 412b are then rotated apart and the jaw assembly 410 is positioned such that the pipe joint is between the segments 412a and 412b. Then, the drive screw 430 is pivotally attached to the first trunnion 420a again, and the second trunnion 420b is positioned within the hook 418. In one embodiment, the transfer mechanism or gear mechanism 440 includes a universal joint (not shown) or a simple set of gears having a 1: ratio. In another specific embodiment, the transfer mechanism or gear mechanism 440 includes a gear having a gear ratio that increases the output torque of the rotary drive 450 to the drive screw 430. In addition, the ratio of the mechanism 440 can also reduce the output RPM of the rotary drive 450 86146.DOC -23-1283610 to the drive screw 430 for better control of the jaw assembly 400. The transfer mechanism or gear mechanism 440 includes a shaft 452 that is removably coupled to a chuck 454 of one of the rotary drives 450. Under actuation of the drive mechanism 430 by the transmission mechanism or gear mechanism 440, the second trunnion 420b moves along a rotary drive screw 43 that rotates on the fixed first trunnion 420a. When the segments 412a and 412b are rotated about the pivot point 414, the hook 418 can accommodate its annular motion. The transfer mechanism or gear mechanism 440 can also include a torque clutch for disengaging the rotational transmission to the drive screw 430 when the pre-torque torque value is reached. The torque clutch prevents the jaw device 400 from passing over the jaw joint. It should be noted that the jaw device 400 can have a mechanical limiter such that the torque on the rotary drive 450 will suddenly increase as the mechanical limiter acts. Therefore, the torque clutch prevents the rotary drive unit 45, the drill motor or other mechanical components from being damaged or overstressed. In addition, the torque clutch can be adjusted to adjust the transmission mechanism 44 to a selected torque level depending on the type of fitting to be clamped to the pipe. For example, the torque clutch can be adjusted for: the clamp-PEX system pipe joint, the -2·5 inch pipe joint symbol is refreshed on the Μ type copper pipe, and a 3 inch pipe joint symbol is lost. & type _ quality pipeline and so on. The torque clutch can include a first portion coupled to the drive screw 43A and a second portion coupled to the rotary drive 450. The first and second portions are intermeshing such that the first and second portions will impart rotational motion therebetween between an adjustable resistance point, and when the resistance point is exceeded, the first and second portions Will be released. Those skilled in the art will appreciate that the design of the jaw device depends on several

86146.DOC -24-1283610 Parameters and variables, such as, in particular, the size of the fitting to be used, the torque and rotational speed of the rotary drive 450, the pitch and thread of the drive screw 430, the friction of the gear mechanism 440, and others. Parameters and variables. It will be appreciated that those skilled in the art will be able to select and calculate appropriate values for such parameters and variables to design a particular embodiment of the jaw device 400. In Fig. 15, another embodiment of the jaw assembly 402 includes elements substantially identical to the assembly 400 of Fig. 14. The difference is that the jaw assembly 402 includes an attachment portion 460 that can attach the jaw device 410 to the drive unit 450, thereby achieving a more manageable smaller tool. The jaw device 410 is attached to the top of the drive unit 450 (as shown) or can be attached to the side of the drive unit 450. The second trunnion 420b is positioned in a furcation slot 419 rather than a hook, and the transmission mechanism 440 has an opposing shaft 452 for coupling the rotary drive 450. Therefore, a groove, a cavity, a tweezers, a groove or a forked end can be used to replace a fishing line. Referring to Figure 16, there is illustrated another embodiment of a jaw assembly 470 that is actuated by a rotary drive 450. The jaw device 470 includes a jaw assembly 472, a transmission mechanism or gear mechanism 480, and drive members or screws 485a and 485b. The jaw assembly 472 includes first and second segments 474a and 474b and defines an inner surface 475 for clamping a fitting (not shown) therebetween. The segments 474a and 474b are symmetrically disposed in the assembly 472 and are coupled to each other by drive screws 485a and 485b. Drive screws 485a and 485b are coupled to first sector 474a and through apertures in second sector 474b. The transmission mechanism or gear mechanism 480 includes a drive gear 482 that is rotatably attached to the second sector 474b and has a 86146.DOC-25-1283610 for attachment to the rotary drive 450 Spur gear of shaft 483. The drive gear 482 has gear teeth that engage the teeth of the first and second spur gears 484a and 484b, and the two spur gears are rotatably attached to the second sector 474b. The first and second spur gears 484a and 484b each include a threaded bore into which one of the drive screws 485a and 485b is screwed. Rotary drive 450 rotating drive gear 482 causes first and second spur gears 484a and 484b to rotate. Thus, the threaded drive screws 485a and 485b will move in the threaded bores in the spur gears 484a and 484b and cause the first sector 474a to open or close relative to the second sector 474b. D. Clamp Assembly Actuated by Rotary Drive Referring to Figure 17, a specific embodiment of a jaw assembly 500 coupled to a conventional jaw ring is illustrated. The jaw assembly 500 provides a articulation 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 from a variety of directions. Clamp ring segments 60a and 60b are coupled at a pivot point 66, and each segment 60a and 60b defines a pivot port 62a and 62b. The jaw assembly 500 includes a drive member or screw 5 10, a drive coupler 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 located in the pivot port 62b of the second sector 60b. Drive threads 5 10 are coupled to first and second coupling arms 530a and 530b. Drive coupling 520 is coupled to one end of drive screw 5 10 . In this particular embodiment, the drive coupler 520 is a universal joint, 86146.DOC -26-1283610, thereby enabling the rotary drive to contact the clamp assembly 500 from a wide variety of angles, sides, and paths. A rotary drive (which may be a drill) is coupled to the universal joint 520 and is transferred from the rotary drive to the drive screw 510 by a universal joint 52〇. Under actuation of the drive screw 510, the first and/or second coupling arms (6) and 530b are movable along the rotating drive screw 51 to open or close the jaw ring segments 60a and 60b. As shown, the drive screw 51 is rotatably attached to the first coupling arm 530a at 53 ,, and the drive screw 51 is screwed into and passed through a threaded hole 534b in the second coupling arm 530b. As the drive screw 51 rotates with the rotary drive, the second coupling arm 53b will immediately move relative to the fixed coupling arm 530a along the drive screw 51. The curved port ends 532a-b of the coupling arms 530a-b in the ports 62a-b can accommodate the rotational movement of the segments 60a and 60b as the segments 6A and 6B rotate about the pivot point %. Referring to Figure 18, there is illustrated another embodiment of a jaw assembly 550 coupled to a conventional jaw ring. The jaw assembly 55A includes a drive member or screw 560 that drives the coupler 570, the first coupling member or trunnion 58a and the first coupling member or trunnion 58b. The first trunnion 580a is detachably positioned in a hook or slot 62 defined in the first sector 6a, and the second trunnion 58〇b is rotatably coupled to the second sector 6〇b . The drive screw 56A includes first and second threaded portions 562 and 564 having opposite pitches. Threaded portions 562 and 564 are threaded into and through the first and second trunnions 58 & and 58 ribs, respectively. Drive coupling 570 is coupled to one end of drive screw 560. The drive coupler 570 is a gear mechanism that can be rotated by one or more rotary drives (not shown) that are coupled to the gear mechanism 570 and that rotate the drive screw 56〇.

86146.DOC -27- 1283610 Side, angle or path contact. For example, the rotary drive used with the wheel mechanism can be a conventional drill. The wire mechanism (4) is transferred from the rotary drive to the drive screw 56A. Under operation of 570, the respective corresponding threaded portions 562 and 564 of the first and second trunnions 58 〇 & 盥〆, M 〇 b / port drive screw 560 are moved to view & - or close the segment 6 〇 a, 6〇b. The official joint opens 612a and 612b. Clamp assembly 610 preferably designs a pipe joint for a pliers (crosslinked polyethylene) piping system. The first segment is attached with a handle 613 and a lever mechanism 620. The lever mechanism 62A includes a second handle or lever arm 622 adjacent to the first handle [mu] and coupled to the first sector 612a by a first pin 624. E. Manual or Auxiliary Clamping Device Actuated by Rotary Drives Referring to Figures 19-20, these Figures illustrate a specific embodiment of a manual or auxiliary actuating jaw device _ and (d). The jaws _ and 65 〇 are manually operated or actuated by a power or hydraulic X. In Fig. 19, the jaw device_ includes a jaw assembly 61〇, a lever mechanism 62〇, and a lock mechanism 63〇. The jaw assembly 610 includes first and second sector locking hook mechanisms 630 coupled together by a pivot 614 and defining an inner surface for clamping - a pipe joint (not shown) therebetween by a second The pin 632 is attached to the lever mechanism 62A. The second pin 632 is offset from the first pin 624 to provide an additional lever arm length ratio. The hook mechanism 63A includes a free end that is detachably attached to the second sector 61. For example, the free end of the hook mechanism 630 includes a hook or the like that is removably attached to a pin or catch 634 on the first sector 612b. The locking hook mechanism 630 transfers the force from the lever arm 622 to the hole of the second sector 61 to close the clamp 86146.DOC -28- 1283610 clip, ~ into 6 1 inch. Because of the detachability, the hook mechanism 6 can be removed from the second segment so that the jaw assembly 61 can be positioned on the pipe joint or removed from the pipe. The jaw device 600 is operated by the same force by an operator pressing the handles 613 and 622 /. The jaw device of Fig. 19 can also use mechanical aids to close the handles 613 and y using a hydraulic cylinder (not shown) to reduce the stress experienced by the operator. Further, the jaw device 600 of Fig. 19 can also be actuated by a rotary drive (not shown). For example, a drive screw (not shown) can be attached to handles 013 and 622 by lugs similar to that disclosed in Figures 14, 15 and 18. In this manner, "" can be rotated or driven by a rotary drive such as a power drill to open or close the segments 612a and 612b around the joint. In the figures, the citrus clip device 650 includes a jaw assembly 660, a lever mechanism 670, and a wedge mechanism 68〇. The jaw assembly 66A includes first and second segments 662a and 662b joined together at a pivot 664. The first and second segments 662a and 662b can define an inner surface 666 for clamping a pipe joint (not shown) therebetween. The jaw assembly 660 is preferably designed for clamping the fitting of a PEX (parent polyethylene) piping system. The lever mechanism 67 is coupled to the first sector 662a by a pivot 672 and may include a lock/unlock mechanism 674 as shown in FIG. Alternatively, the lever mechanism 670 can be attached to a 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 segment 66 aperture and the surface 676 of the lever mechanism 670. As the wedge mechanism 68 moves, it will wedge between the second segment 662b and the lever mechanism 670. The lever mechanism 670 moves the first sector 86146.DOC -29- 1283610 segment. The same time (four) mechanism _ pushes the second segment 662b, and the jaw total ^660 is closed around the pipe joint. The wedge mechanism _ can be operated by hand, for example, using a hard press or a vise. The wedge mechanism 680 can also be actuated using mechanical assistance. For example, a screw press (not shown) can be used to actuate a screw press to move the wedge mechanism 68A. In another embodiment, a hydraulic cylinder (not shown) can be used to move the wedge mechanism 680. In this particular embodiment, the wedge mechanism 68 includes a wedge 682 and a feed screw 688. The feed screw (10) is twisted and passed through - an opening 686 in the portion 684 of the second sector 662b. Rotating the screw 688 can move the wedge 682' to open or close the jaw assembly 660. Referring to Figures 21A-B, a specific embodiment of a manual or auxiliary actuation jaw device 7 is illustrated in a partial cross-sectional side view and a top view. The jaw device 700 includes a first jaw segment 71 〇 and a second jaw segment 720 connected by a pivot 7〇2. The first and second jaw segments 71A and 72B respectively have a manganese face 712 and 722, and the jaw faces 712 and 722 are preferably shaped to sandwich the PEX pipe system fitting (not Graphic). A handle 714 made of a ductile iron (for example) is extended from the first sector 7丨〇. A rotatable connector 730 and a nut 740 can connect the first and second jaw segments 710 and 720. The rotatable connector 730 has an end 732 that is coupled to the first sector 710 by a pivot pin 734. As shown, the end portion 732 and the pin 734 are preferably positioned in a groove defined in the first sector 71? Within 16. One of the threaded ends 736 of the rotatable connector 730 is mounted in one of the split ends 724 of the second sector 72 and the nut 740 is threaded onto the threaded end 736. Preferably, the split end 724 defines a contoured 86146.DOC -30-1283610 surface 726 upon which a rounded end of the nut 740 can rest. If a pipe joint (not shown) is to be clamped, the first and second jaw segments 710 and 720 should be wrapped around the pipe joint, and the rotatable connector can be rotated by rotating the connector 730 on the pin 732. The threaded end 736 of the 730 is mounted within the bifurcated end 724 of the second segment 720. Thereafter, the nut 74 is screwed onto the threaded end 736 to abut the jaw faces 712 and 722 of the pipe joint closing segments 710 and 720. The nut 74〇 can be tightened using a standard ratchet and sleeve or by using a ratchet socket wrench (for example). Referring to Figure 22, a specific embodiment of a manual jaw device 8 is illustrated. The beat and clip device 800 includes first and second jaw segments 810 and 820 connected by a pivot 8〇2. The segments 81A and 82B define a jaw face 812 and 822, respectively, for preferably clamping the jaw type coupling (not shown a drive screw 830 having a first trunnion rotatably rotatably thereon) 832. One end of the drive screw 830 is rotatably coupled to the second trunnion 834. The first trunnion is located in the end 814 of the first segment (four), and the second trunnion 834 is located in the second segment 82G. In the end portion 824, the end portion 8 of the first segment 81G can be bifurcated 'by driving, dry inserting ', while the jaw device is placed on the pipe joint. The drive screw 830 has a The standard ratchet and sleeve or the use - a ratchet socket wrench (for example) to rotate the drive screw 830 ^ head 836. The movable screw is preferably a one-inch leaf feed screw. When illustrated, the jaw device 800 is generally opened and closed as a hinged pipe cutter. The first and second segments 8H) and 82〇 are wrapped around the &joint' and the drive screw 830 is rotated about the second trunnion 834. The first trunnion 832 is positioned on the end 814 of the first segment 81〇. Use a standard later

86146.DOC -31 - 1283610 a ratchet and sleeve or a ratchet socket wrench to rotationally drive the screw 830 such that the first trunnion 832 moves over the drive screw 830 and closes the first and second segments 810 around the pipe joint 820. Referring to Figures 23 and 24A-B, there is illustrated another embodiment of a manual jawing device 850. In Fig. 23, jaw device 850 includes first and second jaw segments 860 and 870 joined by a pivot 852. Segments 860 and 870 define a jaw face 862 and 872, respectively, to preferably clamp a PEX type fitting (not shown). Segments 860 and 870 are preferably investment cast by matching symmetric casting. The first nut 882a is screwed to one end of the drive screw 880 to engage one of the ends 864 of the first sector 860. The second nut 882b is then coupled to the other end of the drive screw 880 to engage one of the ends 874 of the second sector 870. As best seen in the top view of the second sector 870 of Figure 24A, the end 874 of the second sector 870 preferably defines a closed elongated aperture to facilitate the drive screw 880 to pass through and move. In an identical manner, the end portion 864 of the first segment 860 also preferably defines a closed elongated aperture for facilitating passage and movement of the drive screw 880. As best seen in Figure 23, each of the nuts 882a, 882b has a rounded end 884 for engaging the ends 864 and 874 of the segments 860 and 870 and abutting the ends for rotation. In addition, the nuts 882a, 882b each have a head 886 for rotating the nut using a standard ratchet and sleeve or using a ratchet socket wrench, for example. As best shown in the exploded view of Figure 24B, the first nut 882a that engages the first segment 860 has a threaded bore 887 for rotation onto the drive screw 880. The second nut 882b that engages the second segment 870 has a square hole 888 that is mounted to the end of the drive screw 880 and is used to secure the drive screw 880 when tightening 86146.DOC -32-1283610. To the right, a pipe joint (not shown) is required to wrap the first and second segments 86A and 870 around the pipe joint and drive the drive screw 830 through the ends 864 and 874 of the segments 860 and 870. The hole in it. The second nut 882b engages the end 874 of the second sector 870 and the first nut 882a is threaded onto the end of the drive screw 88 to engage the end 864 of the first sector 860. The second nut 88 can be tightened using a wrench and the first nut 882a is rotated on the drive screw _ using a standard ratchet and sleeve or a ratchet socket wrench so that the first and second segments 860 and 870 The pipe joint between the jaw faces 862 and 872 is closed. The description of the preferred embodiments and other specific embodiments are not intended to limit or limit the scope or scope of the disclosed inventive concept. In exchange for the disclosure of the invention contained in this document, the applicant has all the patent rights set forth in the scope of the patent application. Therefore, the present invention includes all modifications and variations to the extent possible, and the following is a description of the specific embodiments of the invention. It is preferred that the invention be summarized, preferred embodiments, and other aspects. Figure 2, Figure 2A_B, Figure 3A_B, Figure 4", Figure 5 and _ are the hair! 疋阁释: The medium-sized device with the changing component - the Jiang Yang device and its components Figure 7, Figure 8A-B and Figure 9 show a unique nature in the specific content of the present invention.

86146.DOC -33 - 1283610 Various views of a second embodiment of a jaw-clamping device and its components; jio and Figure 11 are diagrams of a man-clamping device having a flexible member and its components in a specific illustration of the present invention Various views of a third embodiment; FIG. 12 and FIGS. 13A-C are various views of a particular embodiment of a manure clip device having a pliers chain and elements thereof in a particular illustration of the present invention; FIG. 14 and FIG. And Figure 16 illustrates a specific embodiment of a jaw device that can be used with a rotary drive; Figure 18 and Figure 18 illustrate other embodiments of a jaw device that can be used for a rotary drive and that can be touched by a rotary drive from a multitude of directions Figure 19, Figure 20 and Figures 21A-B illustrate a specific embodiment of a clamping device for clamping a pipe joint using manual or auxiliary actuation; Figures 22, 23 and 24A-B illustrate the use of manual or auxiliary actuation to clamp the tube Other specific embodiments of the jaw clamping device. While the presently disclosed jaw device is susceptible to various modifications and alternative forms, the specific embodiments of the present invention are shown and described in detail herein. The drawings and the description are not intended to limit the scope of the disclosed inventive concepts in any way. Schematic representation of the symbol 10 12 13 20 30 60a Clamping device Pipe fittings Pipe clamping device Clamping device Clamp ring segment

86146.DOC -34 - 1283610 60b Clamp ring segment 62 Hook or groove 62a Pivot port 62b Pivot port 66 Pivot point 100 Actuator assembly 110a First actuator element 110b Second actuator element 112a Cam surface 112b Cam Face 114 Fishing 114a Pivot hole 114b Area light hole 116a Stop hole 116b Stop hole 118a Split end 118b Split end 119a Hook 119b Hook 120 Side plate 120a First side plate 120b Second side plate 130a First pivot pin 130b Second pin-35-

86146.DOC stop pin stop pin axial groove plate slit or groove flexible member strip inner band outer side with first annular end second end end annular end coupling coupler fastener or platen fixed pin ring lock Component spring loaded ball lock pin stop locking device engagement element first roller second roller -36- jaw assembly inner surface outer surface segment segment segment segment segment inner surface flange frame pin frame pin frame pin stop Platen flexible member inside side with outer part open solid element ridged inflammation bond roller pin link inner link inner link -37- 1283610 322 edge 324 first hole 326 second hole pitch 330 link 330a outer key link 330b outer Link 340a Stop pin 340b Fixed stop pin 350a First end roller 350b Second end roller 402 Clamp assembly 410 Folder assembly 412a First sector 412b Second sector 414 Frame pin 415 Inner surface 419 Split end 420a First trunnion 420b Second trunnion 430 Drive screw 440 Transfer mechanism or gear mechanism 450 Rotary drive 452 Shaft 86146.DOC -38- 1283610 460 Attachment Section 470 Clamping Device 472 Clamp Assembly 474a First Sector 474b Second Sector 475 Inner Surface 480 Transmission Mechanism or Gear Mechanism 482 Drive Gear 483 Shaft 484a First Spur Gear 484b Second Spur Gear 485a Drive Screw 485b Drive Screw 500 Clip 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 Clamp Assembly 560 Drive Screw 562 First Thread Section 86146.DOC -39- Second threaded part gear mechanism first ear fortunately by the second trunnion jaw clamping device jaw assembly first sector segment second sector segment handle pivot inner surface lever mechanism lever arm first pin lock hook Mechanism second pin or tweezers jaw assembly clip assembly first segment second segment pivot inner surface lever mechanism -40 - 1283610 672 pivot 674 locking / unlocking mechanism 676 surface 680 wedge mechanism 682 wedge 684 connected to Portion 686 of second sector 662b opening 688 feed screw 700 jaw device 702 pivot 710 first jaw segment 71 2 jaw surface 714 handle 716 groove 720 second folder segment 722 jaw surface 724 fork end 726 styling surface 730 rotatable connector 732 connected to end 734 of first segment 710 frame pin 736 threaded end 740 nut 800 manual jaw device 86146.DOC -41 - pivot first sector segment jaw face first segment 810 end second segment segment jaw face second segment 820 end drive screw first ear Shaft second trunnion head manual clamp device frame shaft first clamp fan segment clamp jaw face first sector segment 860 end of the second brother cool fan segment clamp face second sector segment 870 end drive screw nut Nut round end head -42- 1283610 887 888 threaded hole square hole

86146.DOC -43-

Claims (1)

Patent application No. 12833⁄4^3⁄416376 Chinese ¥ Please replace the patent scope (January 1996) Pick up, apply for a patent: A device for clamping a pipe joint, 1. A device driven by a rotary drive includes: a clamping ring having two segments coupled to each other; - a screw coupled to the rotary drive; engaging between the rotary drive and the screw and rotating the device a transmission mechanism that is transmitted to the screw; a t-member 马 ♦ a first segment of the at least two framing segments; and a first member coupled to the at least two pivot couplings a second segment of the segment; wherein the screw is coupled to the first and second members such that at least one of the members can move along the screw when the screw is rotated to open and close the forceps Clip ring. 2. According to the scope of the patent application! The device of claim 1, wherein the first member is rotatably attached to the first of the at least two pivotally coupled segments. 3. The device of claim 3, wherein the first member is detachably positioned on the end of the first segment of the at least two segments - a cavity, a hole, a hook, > Sub, slot or "fork". 4. The device of claim 3, wherein the first member defines a contoured surface to engage the groove, cavity, hook, 挚 on the end of the first segment of the at least two segments Sub, slot or fork end. 5. The device of claim 3, wherein the first member comprises a 86146-960111.D0C 1283610 screwed to a trunnion on the screw. 6. The device according to the scope of the patent application, wherein the first — Screw the screw onto the screw. 7. The device of claim 3, wherein the first member comprises a pin attached to the screw. 8. According to the scope of the patent application! The device of the item wherein the transmitting mechanism comprises at least one of a chuck, a plurality of gears, a universal joint and a torque clutch. The device of claim 3, wherein the screw comprises first and second threaded portions having opposite threads. 10. According to the scope of the patent application! The device of claim 1, wherein one of the at least two pivotally coupled segments is attachable to the rotary drive. 11. A device for actuating a pipe joint by a rotary drive comprising: a segmented jaw assembly; a drive member coupled to the rotary drive and receiving an output thereof; Means for engaging the drive member to the segmented symbol assembly; means for driving the segmented jaw assembly by rotating the drive member; and interposed between the rotary drive and the drive member The rotary motion is transmitted from the rotary drive to the coupling means of the drive member. 12. The device of claim 11, wherein the means for coupling the drive member to at least one of the segments comprises detachably coupling to at least one of the segments Device. 86146-960111.DOC -2 - 1283610. The apparatus of claim 11, wherein the drive member is coupled to the rotary drive in a plurality of directions. 14. A device according to claim 11 of the patent application, further comprising means for controlling the output of the rotary drive to the drive member. 15. A device for clamping a pipe joint, comprising: a rotary drive; a clamp having at least two splicing coupling segments; a coupling to the rotary drive and coupling Connecting the segment to the at least two crotch regions for rotation when actuated by the rotary drive and closing the screw of the clamp ring; and coupling the rotation between the rods to the rotary drive And a transmission mechanism that is screwed from the rotary drive to the screw. The device of claim 15, comprising: an trunnion; and a first trunnion coupled to the first segment of the at least one of the rain segments, 'and thus engaging the at least one of the rain blades The second segment of the segment wherein the screw is threaded into and passes through at least one of the trunnion screws as the at least one trunnion moves along the screw. 17. The device of claim 16 wherein at least one trunnion is detachably attached to one of the at least two segments. 18. The device of claim 15 comprising: a first t having a contoured face, the first arm being removably positioned in a first shoulder segment defined by the at least two segments a groove 2 and a second arm having a molding surface, the second arm being detachably disposed in a groove defined in the second segment of the at least two segments, 86146-960111.DOC 1283610 wherein the screw At least one arm of the arms can be threadedly engaged such that the at least one arm can move along the screw as the screw rotates. The device of claim 15, wherein the first end of the screw is pivotally attached to the first segment of the at least two segments, and the second end of the screw is screwed together A nut of the second sector of the at least two segments. 20. The device of claim 15, comprising: a first nut attached to the screw and engaging a first segment of the at least two segments, and attached to the screw and engaging the at least a second nut of the second segment of the rain segment, wherein at least one of the nuts is threaded onto the screw. The device of claim 15, wherein the transmission mechanism comprises at least one of a chuck, a plurality of gears, a universal joint, and a torque clutch. 22. The device according to claim 15 wherein the rotary drive 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. The group of people formed. 86146-960111.DOC -4-