CN103133806A - Pipe connector cam handle with safety device - Google Patents
Pipe connector cam handle with safety device Download PDFInfo
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- CN103133806A CN103133806A CN2011103996561A CN201110399656A CN103133806A CN 103133806 A CN103133806 A CN 103133806A CN 2011103996561 A CN2011103996561 A CN 2011103996561A CN 201110399656 A CN201110399656 A CN 201110399656A CN 103133806 A CN103133806 A CN 103133806A
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- cam
- handle
- pipe joint
- safety installations
- lever
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
- F16L37/18—Joints tightened by eccentrics or rotatable cams
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
Provided is a pipe connector cam handle with a safety device. The pipe connector cam handle is mainly arranged on a pipe connector which is provided with a pipe connector body and an inner connecting pipe which is connected in the pipe connector body in a sleeved mode. The cam handle is provided with a handle body and the safety device. The handle body is provided with a cam part. The safety device at least comprises a cam clamp plate which is movably arranged on the cam part. At least one blocking part which can block and locate the inner connecting pipe is arranged on the periphery of the cam clamp plate in a convex mode. When the cam handle is in a semi-open state, the blocking part can still clamp the inner connecting pipe to avoid separation of the inner connecting pipe. When the cam handle is in a fully-open state, the blocking part can be separated from the inner connecting pipe and form an open lock, and accordingly safe using effect is achieved.
Description
Technical field
The present invention relates to a kind of pipe joint, particularly relates to a kind of easy for operationly, and can allow the opening action of pipe joint have more the pipe joint cam handle with safety installations of safe handling effect.
Background technique
referring to Fig. 1, general pipe joint has a joint body 1 usually, one is socketed in the inner connecting tube 2 in joint body 1, an and leak-proof gasket 3 that is set in joint body 1 inside, this joint body 1 place, both sides external limit is provided with two ear seats 101, the inboard place of each ear seat 101 is provided with a flange 102, on this flange 102 and be equipped with a positioning hole 103, these inner connecting tube 2 one ends can be inserted in joint body 1, its periphery is being concaved with an annular groove 201 to position that should ear seat 101, this joint body 1 axle on two ear seats 101 is provided with two cam handles 10, general cam handle 10 has a handle 11, one is set in the buckle spare 12 of handle 11 inside, one is set in handle 11 inside can make butted elastic element 13 to buckle spare 12, an and draw ring 14 that is connected in buckle spare 12 outer ends places, this handle 11 1 end places are provided with a cam part 111, this cam part 111 is coupling on ear seat 101 by wearing a pivot pin 112, cam handle 10 can be done take pivot pin 112 as axis of rotation turn to lift shape, this buckle spare 12 1 ends are provided with a beveled end 121, under general state, this beveled end 121 can be along the flange 102 of butt junction body 1 and is snapped in the positioning hole 103 of joint body 1, handle 11 is positioned on a locked position of coupler, this moment, the cam part 111 of handle 11 can be made compressing blocking shape to the annular groove 201 of inner connecting tube 2, inner connecting tube 2 can engage with joint body 1 rapidly whereby, when the user wants to allow inner connecting tube 2 break away from joint body 1, as long as pull this draw ring 14 to drive this buckle spare 12, make the beveled end 121 interior disengaging in self-align hole 103, the whole handle 11 fully lockset position of coupler of switching to that just can make progress, the cam part 111 that makes handle 11 is during no longer to annular groove 201 blocking of inner connecting tube 2, just can make leak-proof gasket 3 break away from the situation of extruding fully, inner connecting tube 2 just can be from the interior disengaging fully of joint body 1 whereby.
although above-mentioned pipe joint can reach the function of general sealed adapter, yet but there is in the use its disappearance to need improvement badly, general pipe joint inside has been carried high-pressure liquid usually, when the user is not knowing whether to have in deferent residual pressure or because of artificial carelessness, forgotten in the situation of closing valve, just rashly open this cam handle 10 fully, under the powerful impulse force of high-pressure liquid, high-pressure spray is known from experience by outwards ejection in pipe, in more serious situation, inner connecting tube 2 is probably gone out disengaging suddenly in joint body 1, befouling environment, if get to user's health, can produce greatly injury, quite has danger in use.
Summary of the invention
The object of the invention can prevent a kind of pipe joint cam handle with safety installations that the quick-fried punching of inner connecting tube breaks away from the middle of the process that provides pipe joint to open cam handle.
the invention provides a kind of pipe joint cam handle with safety installations, mainly to be installed on a pipe joint, this pipe joint has a pipe joint body and and is set in the intrinsic inner connecting tube of pipe joint, this cam handle includes leader's body, this handle body one end is provided with a cam part, it is characterized in that: a safety installations, at least has a cam clamp, this cam clamp is movably arranged on cam part, its periphery convexes with at least one and stretches into the pipe joint body interior and can do to inner connecting tube the stopper part of block location, this safety installations includes a rotating shaft part, this rotating shaft part passes this cam part and is articulated on the pipe joint body, this cam part and cam clamp indirect are to be provided with a bounding means, this handle body of switching can make the cam part band draw this bounding means, order about by bounding means that cam clamp revolution drives this stopper part and inner connecting tube is the disengaging shape.
Pipe joint cam handle with safety installations of the present invention, this cam clamp are arranged on a lateral location place of handle body cam part.
Pipe joint cam handle with safety installations of the present invention, this safety installations have two cam clamps, and two cam clamps are separately positioned on the dual-side position of handle body cam part.
Pipe joint cam handle with safety installations of the present invention, this handle body cam part is concaved with one for the groove of cam clamp setting at the place, intermediate portion.
Pipe joint cam handle with safety installations of the present invention, this handle body is provided with one for the location indentations of cam clamp periphery contact location near the cam part position.
Pipe joint cam handle with safety installations of the present invention, this cam clamp inside are equipped with a circular axis hole that penetrates for the rotating shaft part.
Pipe joint cam handle with safety installations of the present invention, this cam clamp inside offer an elongate slot of passing through for the rotating shaft part.
Pipe joint cam handle with safety installations of the present invention, this cam clamp periphery and stopper part adjacent position also are provided with second stopper part of inner connecting tube being done the block location.
Pipe joint cam handle with safety installations of the present invention, this bounding means are connected on the handle body cam part, relatively offer a guide groove that supplies bounding means to be stretched through on this cam clamp.
Pipe joint cam handle with safety installations of the present invention, this bounding means are connected on the cam clamp, relatively offer a guide groove that supplies bounding means to be stretched through on this handle body cam part.
Pipe joint cam handle with safety installations of the present invention, this bounding means are single axostylus axostyles.
Pipe joint cam handle with safety installations of the present invention, this bounding means are the axostylus axostyles of two intended distances of being separated by.
Pipe joint cam handle with safety installations of the present invention, this bounding means are projections with predetermined profile.
Pipe joint cam handle with safety installations of the present invention, this handle body is provided with a draw ring in contrast to a side place of cam part.
Pipe joint cam handle with safety installations of the present invention, this handle body inside is equiped with one group of clip unit, and this clip unit has one and the pipe joint body is done the holding piece of clip location and one is arranged on the spring of in receiving bore, holding piece being done butted reply.
Pipe joint cam handle with safety installations of the present invention, this handle body dual-side place is provided with two crashproof walls, be formed with a receiving groove in the middle of two crashproof walls, this receiving groove is for one group of installing lever unit, this lever unit has a lever that is arranged in receiving groove, this lever one end is provided with an axle pivot end that is coupling with handle body, and the other end is provided with a free end that supplies hand to pull, and this axle pivot end is provided with a linkage part that matches with this holding piece.
Pipe joint cam handle with safety installations of the present invention, this handle body are positioned at receiving groove inwall place and are provided with a circular arc concave surface, and this lever axle pivot end outside is provided with an arc convex surface that matches with handle body circular arc concave surface relatively.
Pipe joint cam handle with safety installations of the present invention, this handle body locate to be provided with a stopping surface above the receiving groove inwall, this lever is provided with one stopping surface is made casting lug thereon by keeping off in axle pivot end outside relatively.
Pipe joint cam handle with safety installations of the present invention, this lever unit has the elastic component and the pivot pin that is located on lever axle pivot end that are arranged in the middle of handle body and lever, it is that another end and lever join and be that this elastic component one end and handle body are joined.
Pipe joint cam handle with safety installations of the present invention, this handle body is equipped with an axis hole on crashproof wall, this axis hole penetrates with lever for pivot pin and does pivot joint, and this elastic component is torsion spring, be set on pivot pin, its two ends are done butted to handle body and lever respectively.
Pipe joint cam handle with safety installations of the present invention, this elastic component one end is provided with a L-type end, and this lever external concave is provided with a L shaped groove that supplies the L-type end to be inserted in relatively.
Pipe joint cam handle with safety installations of the present invention, this elastic component one end are provided with a upright end, and this pivot pin one end is provided with the driver slot that the upright end of a confession stretched into and can set elastic component spring-go power size relatively.
Pipe joint cam handle with safety installations of the present invention, this pivot pin one end are provided with one and are pressed into the handle body shaft hole inner wall and form fixing embossed section.
Beneficial effect of the present invention is: being provided with the cam clamp on the handle body forms locking to inner connecting tube, even can make cam handle when semi-open state, do not compressed in the situation of fastening to leak-proof gasket, allow pipe interior pressure or residual pressure first do pressure release, the cam clamp still can break away to prevent it the inner connecting tube blocking, reaches whereby the effect of safe handling.
Description of drawings
Fig. 1 is the assembled sectional view of general pipe joint;
Fig. 2 is the exploded perspective view that the present invention has pipe joint cam handle first preferred embodiment of safety installations, illustrates that the present invention includes leader's body, a clip unit, a lever unit and two cam clamps;
Fig. 3 is the exploded perspective view of above preferred embodiment, illustrates to be seen by another visual angle to look situation of the present invention;
Fig. 4 is the combination stereogram of above preferred embodiment;
Fig. 5 is the exploded perspective view of above preferred embodiment, illustrates that a pipe joint body dual-side place is equipped with the situation of two cam handles;
Fig. 6 is the assembled sectional view of above preferred embodiment, illustrates that the clip unit makes the situation of clip locking to the pipe joint body;
Fig. 7 be Fig. 6 along the sectional view of VII-VII line, the situation that is equiped with an elastic component on the lever unit is described;
Fig. 8 is the assembled sectional view of above preferred embodiment, illustrates that cam clamp and handle body are articulated on the pipe joint body, the situation of jointly an inner connecting tube being carried out the blocking locking;
Fig. 9 is the action diagram of above preferred embodiment, illustrates to pull the situation that drive clip unit, lever unit breaks away from the pipe joint body;
Figure 10 is the action diagram of above preferred embodiment, and the situation that the lever unit upwards pulls open is described;
Figure 11 is the action diagram of above preferred embodiment, illustrates when cam handle just begins to pull open, and handle body and inner connecting tube break away from, and the cam clamp situation of blocking inner connecting tube still;
Figure 12 is the action diagram of above preferred embodiment, and the situation that handle body and cam clamp all break away from inner connecting tube is described after cam handle is opened fully;
Figure 13 is the exploded perspective view of second preferred embodiment of the invention;
Figure 14 is the combination stereogram of second preferred embodiment of the invention;
Figure 15 is the exploded perspective view of third preferred embodiment of the invention;
Figure 16 is the exploded perspective view of four preferred embodiment of the invention;
Figure 17 is the exploded perspective view of fifth preferred embodiment of the invention;
Figure 18 is the exploded perspective view of sixth preferred embodiment of the invention;
Figure 19 is the exploded perspective view of seventh preferred embodiment of the invention;
Figure 20 is the exploded perspective view of eighth preferred embodiment of the invention;
Figure 21 is the constitutional diagram of above preferred embodiment;
Figure 22 is the assembled sectional view of above preferred embodiment;
Figure 23 is the action diagram of above preferred embodiment;
Figure 24 is the action diagram of above preferred embodiment;
Figure 25 is the action diagram of above preferred embodiment;
Figure 26 is the action diagram of above preferred embodiment;
Figure 27 is the exploded perspective view of ninth preferred embodiment of the invention;
Figure 28 is the exploded perspective view of tenth preferred embodiment of the invention;
Figure 29 is the exploded perspective view of eleventh preferred embodiment of the invention;
Figure 30 is the exploded perspective view of twelveth preferred embodiment of the invention;
Figure 31 is the exploded perspective view of thirteenth preferred embodiment of the invention;
Figure 32 is the exploded perspective view of fourteenth preferred embodiment of the invention;
Figure 33 is the exploded perspective view of fifteenth preferred embodiment of the invention;
Figure 34 is the constitutional diagram of above preferred embodiment;
Figure 35 is the assembled sectional view of above preferred embodiment;
Figure 36 is the action diagram of above preferred embodiment;
Figure 37 is the action diagram of above preferred embodiment;
Figure 38 is the action diagram of above preferred embodiment;
Figure 39 is the action diagram of above preferred embodiment;
Figure 40 is the exploded perspective view of sixteenth preferred embodiment of the invention;
Figure 41 is the constitutional diagram of above preferred embodiment;
Figure 42 is the assembled sectional view of above preferred embodiment;
Figure 43 is the action diagram of above preferred embodiment;
Figure 44 is the action diagram of above preferred embodiment;
Figure 45 is the use schematic diagram of first preferred embodiment of the invention, illustrates that the present invention uses on the applicable pipe joint body that is arranged on the different size size of same group of cam handle;
Figure 46 is the exploded perspective view of seventeenth preferred embodiment of the invention;
Figure 47 is the combination stereogram of above preferred embodiment;
Figure 48 is the exploded perspective view of eighteenth preferred embodiment of the invention;
Figure 49 is the combination stereogram of above preferred embodiment.
Embodiment
The present invention is described in detail below in conjunction with drawings and Examples:
referring to Fig. 5 and Fig. 8, the present invention has the pipe joint cam handle 5 of safety installations in the first preferred embodiment, mainly to be installed on a pipe joint, this pipe joint comprises a pipe joint body 100, one is socketed in the inner connecting tube 200 of pipe joint body 100 inside, reach a leak-proof gasket 300 that is set in pipe joint body 100, the outside side edge of this pipe joint body 100 is provided with a pivot joint ear 101, has a flange 102 in pivot joint ear 101, be equipped with a positioning hole 103 on flange 102, this inner connecting tube 200 peripheries are concaved with an annular groove 201, referring to Fig. 2 to Fig. 4, cam handle 5 of the present invention consists predominantly of leader's body 20, one clip unit 30, one lever unit 40 and a safety installations 50, then, after again the element of above-mentioned each unit and Spatial Coupling kenel being specified in.
handle body 20 1 ends are provided with one and make the cam part 21 of pivot joint with pipe joint body 100 pivot joint ears 101, the place, inboard of the other end is provided with a lip part 22, the dual-side place is provided with two crashproof walls 23, be equipped with a receiving bore 24 in lip part 22, this receiving bore 24 can be packed into for clip unit 30, in the middle of two crashproof walls 23, hollow is formed with a receiving groove 25 that thoroughly passes in receiving bore 24, this receiving groove 25 can be inserted for these lever unit 40 installations, the effect of crashproof wall 23 is mainly to prevent that this lever unit 40 is subject to from the shock of side and produces bending or distortion, avoid having influence on Security or the usability of product, in addition, handle body 20 is positioned at receiving groove 25 places, inwall both sides and respectively is provided with a circular arc concave surface 26, this handle body 20 locates more to be provided with a stopping surface 27 above receiving groove 25 inwalls, thoroughly pass to the interior axis hole 28 of receiving groove 25 and be equipped with one on crashproof wall 23.
simultaneously referring to Fig. 6, this clip unit 30 includes a holding piece 31, one spring 32 and a seal ring 33, it sequentially is enclosed in the receiving bore 24 of handle body 20, this holding piece 31 1 end places are provided with a pointed cone section 311, holding piece 31 peripheries are provided with a groove 312, these seal ring 33 rivetings are fixed in receiving bore 24, spring 32 1 ends support only on seal ring 33, another end can be done butted to holding piece 31, when lever unit 40 is pressed down, holding piece 31 is because be subject to the butted of spring 32, pointed cone section 311 slides along with the flange 102 of pipe joint 100 pivot joint ears 101, and then the positioning hole 103 of pipe joint body 100 is made clip locate.
simultaneously referring to Fig. 2, Fig. 6 and Fig. 7, this lever unit 40 has a lever 41, one elastic component 42 and a pivot pin 43, these lever 41 1 ends are provided with an axle pivot end 411, the other end is provided with one and pulls for user's hand the free end 412 that draws, this lever 41 is arranged in the receiving groove 25 of handle body 20, can be subject to the protection of the crashproof wall 23 of dual-side, axis hole 28 positions of these axle pivot end 411 corresponding handle body 20 are equipped with a mesopore 413, can pack into for pivot pin 43 in this mesopore 413 inside, make handle body 20 and lever 41 make the pivot joint shape, lever 41 is concaved with a L-type groove 414 at mesopore 413 outer side surface places, this axle pivot end 411 outsides more are provided with an arc convex surface 415, this arc convex surface 415 cooperatively interacts with the circular arc concave surface 26 of handle body 20, when this kind cooperating structure provides lever 41 to rotate, has firmly cornering rate smoothly, lever 41 more is extended with a linkage part 416 by axle pivot end 411 outsides, this linkage part 416 stretches in the receiving bore 24 of handle body 20, just match with the groove 312 of holding piece 31, after lever 41 switchings, just can drive this holding piece 31 and do telescopic moving, this axle pivot end 411 outsides are being provided with a casting lug thereon 417 with arc convex surface 415 mutually adjoining position, when lever 41 switchings during to several angle, this casting lug thereon 417 can form on handle body 20 stopping surfaces 27 by gear and conflict and restriction site, prevent that linkage part 416 is out of shape because of the power of upwards being pulled, favourablely whereby allow this lever 41 can drive smoothly whole handle body 20 upwards to pull.
these elastic component 42 1 ends join by pivot pin 43 and handle body 20, another end and lever 41 join and are, the spring-go power that provides lever 41 to have pre-sizing, in the present embodiment, this elastic component 42 is a kind of torsion spring, it is set on pivot pin 43, can organize in the mesopore 413 of lever 41, these elastic component 42 1 ends are provided with a L-type end 421, L-type end 421 just is linked in the L-type groove 414 of lever 41, elastic component 42 these ends are connected with lever 41 be, elastic component 42 the other ends are provided with a upright end 422, should plug together on pivot pin 43 by upright end 422, by pivot pin 43, elastic component 42 these ends are connected with handle body 20 be, this pivot pin 43 a wherein end-grain cutting is provided with a driver slot 431, this driver slot 431 can enter for upright end 422 sleeves of elastic component 42, and can supply an instrument (for example: bottle opener) do slotting turning, pivot pin 43 more is provided with an embossed section 433 and a location flange 432 in the periphery of the other end, the dealer is when assembling, at first allow embossed section 433 and the locating flange 432 of pivot pin 43 expose outside handle body 20 axis holes 28, insert the other end driver slot 431 with instrument, and pivot pin 43 is turned, preset the spring-go power that this elastic component 42 produces a certain size, after the elastic force setting of elastic component 42 is complete, the assembler is pressed into whole pivot pin 43 in axis hole 28 again, make embossed section 433 embed handle body 20 axis hole 28 inwalls, utilize the locating flange 432 on pivot pin 43 to contact shelves with handle body 20 only, whole whereby pivot pin 43 is just shut to be fixed on handle body 20, make lever 41 be subject to elastic component 42 butted and have the elastic force of the original position of returning back to.
again referring to Fig. 2, Fig. 5 and Fig. 8, this safety installations 50 includes two cam clamps 51, one rotating shaft part 52 and a bounding means 53, two cam clamps 51 are to be symmetricly set on handle body 20 cam part 21 dual-side places, each cam clamp 51 periphery is provided with a stopper part 511 that is standing shape, this stopper part 511 is stretched in pipe joint body 100, under general blocking, the cam part 21 of handle body 20 and the stopper part 511 of cam clamp 51 are to be fastened in the annular groove 201 of inner connecting tube 200, inner connecting tube 200 can be fixed in pipe joint body 100 whereby, these handle body 20 outer side are provided with a location recess 211 near cam part 21 positions, this location indentations 211 can be located for cam clamp 51 periphery blocks, the amplitude of rotating so as to limiting this cam clamp 51, this cam clamp 51 and handle body 20 cam part 21 all bias are equipped with an axis hole 512, 212, this axis hole 512 can wear for this rotating shaft part 52, this rotating shaft part 52 tip simultaneously connects cam clamp 51 and handle body 20 cam part 21 in the pivot joint ear 101 of pipe joint body 100, handle body 20 cam part 21 are provided with a pin-and-hole 213 at contiguous axis hole 212 places, this pin-and-hole 213 can wear for bounding means 53, this bounding means 53 is axostylus axostyles, offer a microscler guide groove 513 that can supply bounding means 53 to penetrate on cam clamp 51, this bounding means 53 arrives to microscler guide groove 513 inwalls, whereby when handle body 20 during in the up and down switching, bounding means 53 can order about cam clamp 51 and make rotary displacement take rotating shaft part 52 as the axle center.
More than have the general introduction of each Components Shape of pipe joint cam handle of safety installations for the present invention, then, then the effect statement that action of the present invention and expection can be reached as after:
again referring to Fig. 8, when the user will allow inner connecting tube 200 interlockings on pipe joint body 100, at first, allow inner connecting tube 200 be inserted in pipe joint body 100, the user is with a hand repoussage cam handle 5 down, the cam part 21 of handle body 20 and the stopper part 511 of cam clamp 51 can tighten in the annular groove 201 of inner connecting tube 200 simultaneously, these cam part 21 compressing inner connecting tubes 200 are to moving down, make 200 pairs of leak-proof gaskets of inner connecting tube 300 form extruding, reach whereby drip-preventing function, again referring to Fig. 6, when cam handle 5 when pressing down, holding piece 31 on handle body 20 can slide along the flange 102 of pipe joint body 100, and the pointed cone section 311 that makes holding piece 31 snaps in the clip hole 103 of pipe joint body 100, allow whereby whole cam handle 5 be positioned on a locked position of coupler.
referring to Fig. 9, when the user will use the present invention to carry out unlocking action to pipe joint 100, the user first pulls with hand and draws this lever 41, because lever 41 is subject to the butted of elastic component 42 and 32 whiles of spring, the user need to apply greater than elastic component 42 and spring 32 strength simultaneously, begin to allow lever 41 outwards pull, so can allow user's psychology confirm to pull open the carrying out of action, after lever 41 is pulled, the clip hole 103 that just can drive holding piece 31 and pipe joint 100 is separated, referring to Figure 10, then, the stopping surface 27 of handle body 20, because be subject to the conflict of lever 41 casting lug thereons 417 and spacing, handle body 20 can be driven by lever 41 and continue up to pull open, so can allow whole cam handle 5 make opening action.
Referring to Figure 11, when cam handle 5 has just begun to carry out opening action, the cam part 21 of handle body 20 can form with the annular groove 201 of inner connecting tube 200 and break away from, inner connecting tube 200 moves outward because of overpressure, no longer to leak-proof gasket 300 extruding, pressure in all pipes can release in advance from the gap, and the stopper part 511 of cam clamp 51 still is fastened in the annular groove 201 of inner connecting tube 200 at this moment, so can allow inner connecting tube 200 can not go out disengaging from pipe joint body 100.
Referring to Figure 12, after the user opens cam handle 5 fully, handle body 20 can be turned round as the axle center take rotating shaft part 52 by band moving cam clamp 51 by bounding means 53, make the stopper part 511 of cam clamp 51 and the annular groove 201 of inner connecting tube 200 be the disengaging shape, this inner connecting tube 200 just can be directly by spinning off in pipe joint body 100 without any obstruction.
Referring to Figure 15, third preferred embodiment of the invention has leader's body 20 (II) and two cam clamps 51 (II), respectively be equipped with an axis hole 511 (II) on two cam clamps 51 (II), relatively offer a microscler guide groove 22 (II) on the cam part 21 (II) of this handle body 20 (II), this bounding means 53 (II) is a latch, can penetrate in axis hole 511 (II) and microscler guide groove 22 (II).
Referring to Figure 16, four preferred embodiment of the invention has leader's body 20 (III) and two cam clamps 51 (III), respectively offer a microscler guide groove 511 (III) on two cam clamps 51 (III), relatively this handle body 20 (III) cam part 21 (III) dual-side is one-body molded goes out to have two bounding meanss 53 (III), and two bounding meanss 53 (III) can penetrate respectively in the microscler guide groove 511 (III) of cam clamp 51 (III).
Referring to Figure 17, fifth preferred embodiment of the invention has leader's body 20 (IV) and a cam clamp 51 (IV), be equipped with an axis hole 511 (IV) on cam clamp 51 (IV), relatively offer a microscler guide groove 22 (IV) on these handle body 20 (IV) cam part 21 (IV), this bounding means 53 (IV) is a latch, can penetrate in axis hole 511 (IV) and microscler guide groove 22 (IV).
Referring to Figure 18, sixth preferred embodiment of the invention has leader's body 20 (V) and a cam clamp 51 (V), the upper one-body molded bounding means 53 (V) that goes out to have of cam clamp 51 (V), relatively offer a microscler guide groove 22 (V) on the cam part 21 (V) of this handle body 20 (V), the bounding means 53 (V) on cam clamp 51 (V) can penetrate in microscler guide groove 22 (V).
Referring to Figure 19, seventh preferred embodiment of the invention has leader's body 20 (VI) and a cam clamp 51 (VI), offer a microscler guide groove 511 (VI) on cam clamp 51 (VI), the upper one-body molded bounding means 53 (VI) that goes out to have of the cam part 21 (VI) of relative this handle body 20 (VI), this bounding means 53 (VI) can penetrate in microscler guide groove 511 (VI).
cam handle of the present invention is in response to difform inner connecting tube, can make different variation kenels, referring to Figure 20 to Figure 22, the present invention is in the 8th preferred embodiment, these pipe joint body 100 internal sleeve are provided with another inner connecting tube 200 ', this inner connecting tube 200 ' end periphery is provided with a block edge 201 ' that is the inverted T-shaped shape, pipe joint body 100 places, both sides are pivoted with two cam handles 6, each cam handle 6 all includes leader's body 60 and a safety installations 70, these handle body 60 1 ends are provided with a cam part 61, this cam part 61 is articulated on pipe joint body 100, contact but can't form with inner connecting tube 200 ', be equipped with the guide groove 612 that an axis hole 611 and slightly is triangular shape on cam part 61, this safety installations 70 comprises two cam clamps 71, two cam clamps 71 are arranged on cam part 61 dual-side places symmetrically, its periphery convexes with one can do to inner connecting tube 200 ' block edge 201 ' stopper part 711 of block location, the position of this stopper part 711 of neighbour more is provided with one second stopper part 712, the position of corresponding cam part 61 axis holes 611 of cam clamp 71 is provided with an elongate slot 713, one rotating shaft part 72 penetrates in axis hole 611 and elongate slot 713 and is articulated on pipe joint body 100, the position of cam clamp 71 corresponding cam part 61 guide grooves 612 in sides is one-body molded goes out to have a bounding means 73, this bounding means 73 is one-body molded microscler projections on cam clamp 71, can be inserted in the guide groove 612 of cam part 61, make whole cam clamp 71 can do limited activity on cam part 61.
referring to Figure 23, Figure 24, when the user has just begun and will pull when drawing cam handle 6, cam clamp 71 draws bounding means 73 by guide groove 612 bands of cam part 61, two cam clamps 71 are moved toward pipe joint body 100 left and right lateral direction, stopper part 711 on cam clamp 71 breaks away from the block edge of inner connecting tube 200 ' 201 ', referring to Figure 25, because inner connecting tube 200 ' is subject to the internal pressure impact, whole meeting is gone out movement towards pipe joint body 100 tops, the block location can be done to the block edge 201 ' of inner connecting tube 200 ' in cam clamp this moment the second stopper part 712 of 71 and then, can prevent that whereby the quick-fried punching of inner connecting tube 200 ' breaks away from.
Referring to Figure 26, when person to be used confirms to carry out unlocking action, with cam handle 6 upwards switching open fully, the second stopper part 712 of cam clamp 71 is separated with the block edge 201 ' of inner connecting tube 200 ' at this moment, inner connecting tube 200 ' is not subject to any object to be stopped, just can detach out in pipe joint body 100.
the present invention can produce the multiple different kenel that changes according to above-described embodiment, referring to Figure 27, ninth preferred embodiment of the invention has leader's body 60 (I) and a cam clamp 71 (I), this handle body 60 (I) end is provided with a cam part 61 (I), the upper one-body molded bounding means 73 (I) that goes out to have of cam part 61 (I), this bounding means 73 (I) is the axostylus axostyle of two intended distances of being separated by, this cam clamp 71 (I) is arranged on a side of cam part 61 (I), its inside is concaved with a guide groove 714 (I) that is triangular shape, this guide groove 714 (I) can be inserted in for bounding means 73 (I).
referring to Figure 28, tenth preferred embodiment of the invention has leader's body 60 (II), one cam clamp 71 (II) and a bounding means 73 (II), this handle body 60 (II) end is provided with a cam part 61 (II), be equipped with a guide groove 612 (II) that is triangular shape on cam part 61 (II), be equipped with two pin-and-holes 714 (II) on cam clamp 71 (II), this bounding means 73 (II) is two latches, after penetrating in cam part 61 (II) guide groove 612 (II), the tip connects and is fixed in cam clamp 71 (II) two pin-and-holes 714 (II) again.
Referring to Figure 29, eleventh preferred embodiment of the invention has leader's body 60 (III) and a cam clamp 71 (III), handle body 60 (III) end is provided with a cam part 61 (III), the upper one-body molded bounding means 73 (III) that goes out to have of this cam part 61 (III), this bounding means 73 (III) is the projection that is microscler shape, offer a guide groove 714 (III) that is triangular shape on cam clamp 71 (III), this guide groove 714 (III) can be inserted in for bounding means 73 (III).
referring to Figure 30, twelveth preferred embodiment of the invention has leader's body 60 (IV) and two cam clamps 71 (IV), handle body 60 (IV) end is provided with a cam part 61 (IV), each one-body moldedly goes out to have a bounding means 73 (IV) cam part 61 (IV) dual-side, each bounding means 73 (IV) is two axostylus axostyles that are connected on cam part 61 (IV), two cam clamps 71 (IV) are arranged on cam part 61 (IV) dual-side place symmetrically, all be equipped with a guide groove 714 (IV) that is triangular shape on each cam clamp 71 (IV), this guide groove 714 (IV) can be inserted in for bounding means 73 (IV).
referring to Figure 31, thirteenth preferred embodiment of the invention has leader's body 60 (V), two cam clamps 71 (V) and a bounding means 73 (V), handle body 60 (V) end is provided with a cam part 61 (V), offer a guide groove 612 (V) that is triangular shape on cam part 61 (V), two cam clamps 71 (V) are symmetricly set on cam part 61 (V) dual-side place, all be equipped with two pin-and-holes 714 (V) on each cam clamp 71 (V), this bounding means 73 (V) is two latches, after being penetrated by the pin-and-hole 714 (V) of one side cam clamp 71 (V), be stretched through the guide groove 612 (V) on cam part 61 (V), at last doing the tip with cam clamp 71 (V) pin-and-hole 714 (V) of another side again connects fixing.
referring to Figure 32, fourteenth preferred embodiment of the invention has leader's body 60 (VI) and two cam clamps 71 (VI), handle body 60 (VI) end is provided with a cam part 61 (VI), cam part 61 (VI) dual-side respectively is provided with a bounding means 73 (VI), this bounding means 73 (VI) is that one is connected to the microscler shape projection on cam part 61 (VI), two cam clamps 71 (VI) are symmetricly set on cam part 61 (VI) dual-side place, all offer the guide groove 714 (VI) of a shape triangular in shape on each cam clamp 71 (VI), this guide groove 714 (VI) can be inserted in for bounding means 73 (VI).
cam handle of the present invention also has other different embodiments to change, referring to Figure 33 to Figure 35, the cam handle 7 of fifteenth preferred embodiment of the invention has leader's body 80 and a safety installations 90, this safety installations 90 includes a cam clamp 91, one rotating shaft part 92 and a bounding means 93, handle body 80 1 ends are provided with a cam part 81, this cam part 81 is cut at the place, intermediate portion and is provided with a groove 811, this groove 811 just can be inserted in setting for cam clamp 91, be equipped with an axis hole 812 on cam part 81, 91 pairs of cam clamps should axis hole 812 positions offer an elongate slot 911, after rotating shaft part 92 is penetrated by cam part 81 axis holes 812, be stretched through again the elongate slot 911 of cam clamp 91, and be articulated on pipe joint body 100, offer the guide groove 813 of a shape triangular in shape on cam part 81, be equipped with two pin-and-holes 912 on this cam clamp 91, this bounding means 93 is two latches, after bounding means 93 can be penetrated by the guide groove 813 of cam part 81, the pin-and-hole 912 of cam clamp 91 is crossed in break-through again, cam clamp 91 peripheries are provided with a stopper part 913 and one second stopper part 914, this stopper part 913 can be made block to the block edge 201 ' of inner connecting tube 200 ' and locate, allow whereby inner connecting tube 200 ' be fixed on the interior formation blocking of pipe joint body 100.
Referring to Figure 36 to Figure 38, when the user has just begun to open cam handle 7, cam clamp 91 is subject to respectively the restriction of rotating shaft part 92 and bounding means 93, make cam clamp 91 can do simultaneously rotation and translation motion, stopper part 913 on cam clamp 91 can be taken off with inner connecting tube 200 ' block edge 201 ' and pull, inner connecting tube 200 ' was subject to the internal pressure impact and up moved this moment, its block edge 201 ' can be subject to cam clamp 91 second stopper part 914 blocks again and locate, and can prevent that whereby the unexpected quick-fried punching of inner connecting tube 200 ' breaks away from.
Referring to Figure 39, when the user opens cam handle 7 fully, the second stopper part 914 of cam clamp 91 can be taken off with inner connecting tube 200 ' block edge 201 ' and pull, and this moment, inner connecting tube 200 ' no longer was subject to any stopping, and can be successfully by detaching out in pipe joint body 100.
referring to Figure 40 to Figure 42, the cam handle 8 of sixteenth preferred embodiment of the invention has leader's body 80 (I) and a safety installations 90 (I), this safety installations 90 (I) comprises a cam clamp 91 (I), one rotating shaft part 92 (I) and a bounding means 93 (I), handle body 80 (I), cam clamp 91 (I), rotating shaft part 92 (I) and bounding means 93 (I) are similar with a upper embodiment, structure just repeats no more in detail, different is, this cam clamp 91 (I) is provided with an axis hole 911 (I) that supplies rotating shaft part 92 (I) to penetrate, contiguous axis hole 911 (I) position is equipped with an elongate slot 912 (I), this bounding means 93 (I) is microscler projection, just can be inserted in the elongate slot 912 (I) of cam clamp 91 (I), cam clamp 91 (I) is in response to the shape of inner connecting tube 200, its periphery is provided with stopper part 913 (I) and one second stopper part 914 (I) that is arc shape, referring to Figure 43, when the user begins to pull when drawing cam handle, the stopper part 913 (I) of cam clamp 91 (I) can break away from from the arc-shaped ring groove 201 of inner connecting tube 200, and then block location can be done to inner connecting tube 200 in the second stopper part 914 (I), can prevent that whereby the unexpected quick-fried punching of inner connecting tube 200 breaks away from, referring to Figure 44, when the user confirms to open cam handle 8 fully, pulling this handle body 80 (I) can turn round by band moving cam clamp 91 (I), the second stopper part 914 (I) is broken away from from the arc-shaped ring groove 201 of inner connecting tube 200, inner connecting tube 200 no longer is subject to any stopping, and can be successfully by detaching out in pipe joint body 100.
Referring to Figure 45, handle body 20 of the present invention utilizes bounding means 53 to reach actuation with cam clamp 51 is middle, and the present invention is provided with microscler guide groove 513 and penetrates movement for bounding meanss 53, this purpose of design is to use same group of cam handle, on the applicable pipe joint body 400 that is arranged on a different size size, microscler guide groove 513 provides the effect of the fine setting on the fit tolerance size.
in sum, the pipe joint cam handle that the present invention has safety installations is mainly the problem of using in order to solve general pipe joint, its technological means that adopts is to be provided with at least a cam clamp 51 on the cam part 21 of handle body 20, referring to Figure 11, Figure 12, this cam clamp 51 has the stopper part 511 that can do blocking to inner connecting tube 200 annular grooves 201, when making cam handle just begin to open, even the cam part 21 of handle body 20 breaks away from inner connecting tube 200 annular grooves 201, blocking still can be done to inner connecting tube 200 annular grooves 201 in stopper part 511 on cam clamp 51, so cam handle is under semi-open state, inner connecting tube 200 can not gone out disengaging from pipe joint body 100 yet, reach whereby the effect of safe handling, in addition, referring to Figure 45, cam clamp 51 is done transmission with handle body 20 is middle by bounding means 53, the present invention offers microscler guide groove 513 and is inserted in movably for bounding means 53, microscler guide groove 513 provides the function of fit tolerance size fine setting, can allow same group of cam handle be suitable for is arranged on the pipe joint body of different size size, so manufacture the cam handle that just need not develop different size, have advantages of to save and manufacture cost, come again, referring to Fig. 9, this lever 41 is connected on handle body 20 in the pivot joint mode, lever 41 is reached interlock with 30 centres, clip unit with connecting rod mode, so when the user pulls open this lever 41 laterally, can positively drive clip unit 30 and complete unlocking action, the structure of lever 41 is quite easy and convenient on operation is used, and can not cause the compressing pain to human hands, has splendid using effect, and the present invention is at the middle elastic component 42 that is provided with of handle body 20 and lever 41, the torsion spring-go power that elastic component 42 provides lever 41 can produce pre-sizing, when the user will carry out the release action to pipe joint 100, pull and draw this lever 41, must overcome spring 32 elastic force simultaneously of elastic component 42 and clip unit 30, therefore the user will apply and just can pull open energetically this lever 41, so allow the user in the situation that psychological preparation is arranged, confirmation is unblanked to pipe joint 100, can guarantee the Security used, when carrying out block action, as long as the user is toward pressing down lever 41, utilize 31 of holding pieces to be subject to the butted of spring 32, and the pointed cone section 311 of holding piece 31 can be along the flange 102 of pipe joint 100 pivot joint ears 101, slide in the positioning hole 103 of pipe joint 100 along supporting, so just, can reach easily blocking function, in addition, the present invention is in assembling process, rotating this pivot pin 43 can drive elastic component 42 and reverse, the large I of torsion spring-go power of elastic component 42 arbitrarily adjusts setting whereby, allow lever 41 elasticity of a size suitable when pulling, it is quite convenient on elastic force is set.
it is worth mentioning that, technology of the present invention is also applicable on general cam handle, referring to Figure 46, Figure 47, the cam handle 500 of seventeenth preferred embodiment of the invention has leader's body 510, two cam clamps 520 and a bounding means 530, these handle body 510 1 sides are provided with a cam part 511, another side is provided with a free end 512, be equipped with a draw ring 513 on this free end 512, this draw ring 513 is available for users to hand and pulls and draw, the structure of two cam clamps 520 is basically identical with the first embodiment, two cam clamps 520 form interlock by bounding means 530 and cam part 511, so this cam handle 500 utilizes the setting of two cam clamps 520, can reach the effect of safe handling equally.
referring to Figure 48, Figure 49, the cam handle 600 of eighteenth preferred embodiment of the invention has leader's body 610, one holding piece 620, two cam clamps 630 and a bounding means 640, these handle body 610 1 sides are provided with a cam part 611, another side is provided with a free end 612, be positioned at free end 612 inboard place and be provided with a lip part 613, can pack into for this holding piece 620 springing ground in this lip part 613 inside, this holding piece 620 tail ends are equipped with a draw ring 621, this draw ring 621 is available for users to hand and pulls and draw, make this holding piece 620 can do the up and down telescopic moving, the structure of two cam clamps 630 is basically identical with the first embodiment, two cam clamps 630 form interlock by bounding means 640 and cam part 611, so this cam handle 600 utilizes the setting of two cam clamps 630, can reach the effect of safe handling equally.
Above various embodiments' cam clamp structure and mounting technique are all applicable on the general cam handle of EN-14420-7 (DIN 2828) and A-A-59326B standard, the above, be a plurality of preferred embodiments of the present invention, when not limiting scope of the invention process with this, all simple equivalences of doing according to the present patent application the scope of the claims and invention description content change and modify, and all still remain within the scope of the patent.
Claims (23)
1. pipe joint cam handle with safety installations, mainly to be installed on a pipe joint, this pipe joint has a pipe joint body and one and is set in the intrinsic inner connecting tube of pipe joint, this cam handle includes a handles body, this handle body one end is provided with a cam part, it is characterized in that:
A safety installations, at least has a cam clamp, this cam clamp is movably arranged on cam part, its periphery convexes with at least one and stretches into the pipe joint body interior and inner connecting tube is done the stopper part of block location, this safety installations includes a rotating shaft part, this rotating shaft part passes this cam part and is articulated on the pipe joint body, and this cam part and cam clamp indirect are to be provided with a bounding means.
2. the pipe joint cam handle with safety installations according to claim 1 is characterized in that: this cam clamp is arranged on a lateral location place of handle body cam part.
3. the pipe joint cam handle with safety installations according to claim 1, it is characterized in that: this safety installations has two cam clamps, and two cam clamps are separately positioned on the dual-side position of handle body cam part.
4. the pipe joint cam handle with safety installations according to claim 1 is characterized in that: this handle body cam part is concaved with a groove that arranges for the cam clamp at the place, intermediate portion.
5. the pipe joint cam handle with safety installations according to claim 1 is characterized in that: this handle body is provided with one for the location indentations of cam clamp periphery contact location near the cam part position.
6. the pipe joint cam handle with safety installations according to claim 1 is characterized in that: this cam clamp inside is equipped with a circular axis hole that penetrates for the rotating shaft part.
7. the pipe joint cam handle with safety installations according to claim 1 is characterized in that: this cam clamp inside offers an elongate slot of passing through for the rotating shaft part.
8. the pipe joint cam handle with safety installations according to claim 1 is characterized in that: this cam clamp periphery and stopper part adjacent position also are provided with second stopper part of inner connecting tube being done the block location.
9. the pipe joint cam handle with safety installations according to claim 1, it is characterized in that: this bounding means is connected on the handle body cam part, relatively offers a guide groove that is stretched through for bounding means on this cam clamp.
10. the pipe joint cam handle with safety installations according to claim 1, it is characterized in that: this bounding means is connected on the cam clamp, relatively offers a guide groove that is stretched through for bounding means on this handle body cam part.
11. the pipe joint cam handle with safety installations according to claim 1 is characterized in that: this bounding means is single axostylus axostyle.
12. fool proof pipe joint cam handle according to claim 1 is characterized in that: this bounding means is the axostylus axostyle of two intended distances of being separated by.
13. the pipe joint cam handle with safety installations according to claim 1 is characterized in that: this bounding means is a projection with predetermined profile.
14. the pipe joint cam handle with safety installations according to claim 1 is characterized in that: this handle body is provided with a draw ring in contrast to a side place of cam part.
15. the pipe joint cam handle with safety installations according to claim 1, it is characterized in that: this handle body inside is equiped with one group of clip unit, and this clip unit has one and the pipe joint body is done the holding piece of clip location and one is arranged on the spring of in receiving bore, holding piece being done butted reply.
16. the pipe joint cam handle with safety installations according to claim 15, it is characterized in that: this handle body dual-side place is provided with two crashproof walls, be formed with a receiving groove in the middle of two crashproof walls, this receiving groove is for one group of installing lever unit, this lever unit has a lever that is arranged in receiving groove, this lever one end is provided with an axle pivot end that is coupling with handle body, the other end is provided with a free end that supplies hand to pull, and this axle pivot end is provided with a linkage part that matches with this holding piece.
17. the pipe joint cam handle with safety installations according to claim 16, it is characterized in that: this handle body is positioned at receiving groove inwall place and is provided with a circular arc concave surface, and this lever axle pivot end outside is provided with an arc convex surface that matches with handle body circular arc concave surface relatively.
18. the pipe joint cam handle with safety installations according to claim 16, it is characterized in that: this handle body locates to be provided with a stopping surface above the receiving groove inwall, and this lever is provided with one stopping surface is made casting lug thereon by keeping off in axle pivot end outside relatively.
19. the pipe joint cam handle with safety installations according to claim 16, it is characterized in that: this lever unit has the elastic component and the pivot pin that is located on lever axle pivot end that are arranged in the middle of handle body and lever, it is that another end and lever join and be that this elastic component one end and handle body are joined.
20. the pipe joint cam handle with safety installations according to claim 19, it is characterized in that: this handle body is equipped with an axis hole on crashproof wall, this axis hole penetrates with lever for pivot pin and does pivot joint, this elastic component is torsion spring, be set on pivot pin, its two ends are done butted to handle body and lever respectively.
21. the pipe joint cam handle with safety installations according to claim 19 is characterized in that: this elastic component one end is provided with a L-type end, and this lever external concave is provided with a L shaped groove that supplies the L-type end to be inserted in relatively.
22. the pipe joint cam handle with safety installations according to claim 19 is characterized in that: this elastic component one end is provided with a upright end, and this pivot pin one end is provided with the driver slot that the upright end of a confession stretched into and can set elastic component spring-go power size relatively.
23. the pipe joint cam handle with safety installations according to claim 19 is characterized in that: this pivot pin one end is provided with one and is pressed into the handle body shaft hole inner wall and forms fixing embossed section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110399656.1A CN103133806B (en) | 2011-11-30 | 2011-11-30 | Pipe connector cam handle with safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110399656.1A CN103133806B (en) | 2011-11-30 | 2011-11-30 | Pipe connector cam handle with safety device |
Publications (2)
| Publication Number | Publication Date |
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| CN103133806A true CN103133806A (en) | 2013-06-05 |
| CN103133806B CN103133806B (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110399656.1A Active CN103133806B (en) | 2011-11-30 | 2011-11-30 | Pipe connector cam handle with safety device |
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| Country | Link |
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| CN (1) | CN103133806B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048121A (en) * | 2014-06-25 | 2014-09-17 | 四川辉利达塑胶科技有限公司 | Pipe connector |
| CN106151736A (en) * | 2015-04-09 | 2016-11-23 | 李岳霖 | Quick coupling |
| CN107105591A (en) * | 2016-02-19 | 2017-08-29 | 伍鐌科技股份有限公司 | Movable handle |
| TWI614440B (en) * | 2017-06-02 | 2018-02-11 | Li yue lin | Anti-loose buckle and pipe joint applying the same |
| CN107802091A (en) * | 2016-09-08 | 2018-03-16 | 晨兴企业股份有限公司 | The structure of lifting seat |
| CN109396500A (en) * | 2018-12-24 | 2019-03-01 | 中铁局集团电务工程有限公司 | A kind of rigid contact net busbar connector hole drilling die |
| CN110168270A (en) * | 2016-12-24 | 2019-08-23 | 杰弗里·哈特曼 | Double cam bar and safety lock for cam fitting for lock |
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| DE29707456U1 (en) * | 1997-04-24 | 1997-06-19 | Lee, Shen-Chin, Taipeh/T'ai-pei | Pipe connection |
| US5816623A (en) * | 1995-07-12 | 1998-10-06 | Chang; King | Self-locking quick disconnect coupling device |
| CN102192377A (en) * | 2010-03-16 | 2011-09-21 | 陈旺松 | Connecting rod type pipe joint cam handle |
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| CN2225588Y (en) * | 1995-05-15 | 1996-04-24 | 笠源精密工业股份有限公司 | Quick-acting pipe joint |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048121A (en) * | 2014-06-25 | 2014-09-17 | 四川辉利达塑胶科技有限公司 | Pipe connector |
| CN106151736A (en) * | 2015-04-09 | 2016-11-23 | 李岳霖 | Quick coupling |
| CN106151736B (en) * | 2015-04-09 | 2018-10-19 | 李岳霖 | Quick coupling |
| CN107105591A (en) * | 2016-02-19 | 2017-08-29 | 伍鐌科技股份有限公司 | Movable handle |
| CN107802091A (en) * | 2016-09-08 | 2018-03-16 | 晨兴企业股份有限公司 | The structure of lifting seat |
| CN110168270A (en) * | 2016-12-24 | 2019-08-23 | 杰弗里·哈特曼 | Double cam bar and safety lock for cam fitting for lock |
| TWI614440B (en) * | 2017-06-02 | 2018-02-11 | Li yue lin | Anti-loose buckle and pipe joint applying the same |
| CN109396500A (en) * | 2018-12-24 | 2019-03-01 | 中铁局集团电务工程有限公司 | A kind of rigid contact net busbar connector hole drilling die |
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|---|---|
| CN103133806B (en) | 2015-05-13 |
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