CN2122972U - Rotary rapid joint unit for chains - Google Patents

Abstract

The utility model relates to a rotating quick joint assembly for chains, which is composed of two contact pins and two connecting shafts, wherein one of the connecting shafts is a rod body in the shape of a circular rod, and a neck is formed on the top end of the other connecting shaft; the through holes are formed on the contact pin positioned at the bottom end, and one end of each of the two connecting shafts is respectively riveted in the through holes; a pivot joint hole whose diameter is greater than that of the rod diameter of each connecting shaft and a through hole in the shape of figure eight are formed on one contact pin; the connecting shaft without the neck penetrates through the pivot joint hole, and one end of the other connecting shaft with the neck is inserted through the large circle of the through hole of the contact pin and is positioned in the small circle of the through hole; the pivot joint hole is pivoted with one connecting shaft to effectively position one end of the contact pin.

Description

Rotary rapid joint unit for chains

The utility model relates to a kind of in order to the adapter assembly in conjunction with the chain two ends, the firm combination of particularly a kind of chain rivet and contact pin, to ensure the rotary rapid pipe joint assembly of the chain that the assembling chain is safe in utilization.

Adapter assembly is a kind of member in order to assembling chain two ends, in conjunction with after this member also can along with the assembling chain transmission, therefore, adapter assembly is except the two ends in conjunction with chain firmly, also combination firmly to each other, otherwise when adapter assembly during along with chain transmission also might be because stirring of sprocket and outwards getting loose in the transmission, and then influencing the Security that chain uses, the utility model is improved at the structure of adapter assembly.

At first, see also Fig. 1, this figure is a kind of side-looking exploded view of the assembly of chain joint in the past, in the past the adapter assembly 1 of chain by 11,12 and two of two contact pin connect the axle 13,14 form, an end that connects axle 13,14 is riveted on respectively in two perforation 111 of bottom contact pin 11, the other end forms the less neck of diameter 131,141 respectively, is the bigger end of diameter 132,142 above neck 131,141; Be formed with two circular perforations 121 and be positioned at equally in the contact pin 12 of top, 121 slightly larger in diameter of boring a hole connect axle 13,14 end 132,142 in two.

Please cooperate Fig. 2, this figure is that a kind of component groups of chain joint in the past is contained in the schematic representation on the chain, when adapter assembly 1 will connect the two ends of chain 7, connect axle 13 with two, 14 neck 131,141 pass the lining 71 of chain 7, top end 132,142 protrude in lining 71 tops, the end 132 that connects axle 13 is inserted in the perforation 121 that will be positioned at then in the contact pin 12 on top, again to right-hand drawing (explaining) with state shown in Figure 2, just can make neck 131 clips of 132 bottoms, end in the perforation 121 of contact pin 12, then inwardly press two and connect axle 13,14, pitch is dwindled, just can make once again another connect axle end 142 of 14 pass another perforation 121 in the contact pin 12 ', connect axle 13 and work as two, pressing after the strength releasing between 14, connect axle 13,14 neck 131,141 just can support respectively and establish, clip and is fixed the two ends of chain 7 in two of top contact pin 12 perforation 121.

Though the structure of aforementioned chain joint assembly 1 can be fixed chain 7 two ends, but still can produce in conjunction with unstable phenomenon after the combination, main cause is to connect axle 13,14 with the contact pin 12 on top after combining, two connect axle 13,14 end 132,142 still can be because of the effect of external force simultaneously to the central displacement of contact pin 12, when two connect the axle 13,14 top ends 132,142 simultaneously when central displacement, just can make two to contact 13,14 pitch is dwindled, if chain 7 is given a shock in transmission, and when making the pitch of 71 of two chain rivets dwindle, originally be combined in two and connect axle 13, contact pin 12 on 14 just is easy to because connect axle 13, dwindling of pitch between 14 and outwards flicking, cause getting loose of joint 1, when contact pin 12 generations that connect chain 7 two ends come off, the chain 7 of link spring shape separately after can making script make up, cause chain 7 in transmission, to be caused danger, therefore, the adapter assembly of chain was after combination in the past, two connect axle 13,14 can be to central displacement when being subjected to external force, so inlay resultant force deficiency to each other produces dangerous easily in transmission.

The structure of adapter assembly that a kind of chain is arranged in addition is shown in Fig. 3,4, it has 21,22 and two of two contact pin and connects axle 23,24, connecing axle 23,24 bottoms is riveted in the contact pin 21 of bottom equally, also be formed with two perforation 221 in the contact pin 22 on top and be positioned at, different is with aforementioned joint group: the perforation 221 of contact pin 21 is to be occured simultaneously mutually by great circle 227 and roundlet 228 to form, two roundlets 228,228 ' diameter match and great circle 227,227 ' can pass through for the end 232,242 that connects axle 23,24 with the neck 231,241 that connects axle 23,24; See also Fig. 3,5, when contact pin 22 to be assembled in two connect the axle 23,24 on the time, similarly, the end 232 that will connect axle 23 is earlier inserted by the great circle 227 of contact pin 22 perforation 221, draw back to side again, another connects another perforation 221 that axle 24 will be combined in contact pin 22 ' when going up, similarly, inwardly press two and connect axle 23,24.Pitch is to each other dwindled, to connect axle 24 again inserts in another perforation 221 of top contact pin 22, after the external force elimination, two connect axle 23,24 neck 231,241 just can distinguish clip the roundlet 228,228 of two perforation 221 of contact pin 22 ' in, to finish the purpose at assembling chain two ends.

Structure shown in the aforementioned chain joint group and first kind of adapter assembly institute difference in the past are: the shape of perforation.The difference of perforation shape, can only make connect the axle when making up, be more prone to contact pin, inlay resultant force for the combination rear chain there is no help, main cause is two and connects an end with neck after making up with contact pin, each other equally can be because of the effect of external force simultaneously to intrinsic displacement, cause pitch between the two to change, the change of pitch is smooth and easy when assembling contact pin 22 originally, but lack locating effect to each other after the combination, so make two to connect axle and have neck one end and change pitch because of external force easily, even cause getting loose of contact pin, cause in the use of assembling chain and produce danger, therefore, improve though aforementioned chain joint group has been made part in contact pin, still do not benefit for the inlay resultant force that connects between axle and the contact pin but change the back, have the unstable shortcoming of assembling equally.

Main purpose of the present utility model be providing a kind of chimeric firmly, be difficult for the rotary rapid pipe joint assembly of the chain that gets loose after the combination.

Major character of the present utility model is: the rotary rapid pipe joint assembly of described chain meets axle institute by two contact pin and two and is formed, two ends that connect axle are riveted on respectively in two perforation of same contact pin, an end that connects axle forms neck more therein, has slightly larger in diameter in another contact pin in the pivoted hole that connects the axostylus axostyle body, and by greatly, the perforation that roundlet occurs simultaneously mutually and forms, pivoted hole passes for the body of rod that connects axle, and riveted, the location, between the two and be formed with the Yu crack, another perforation sacrificial vessel has an end that connects axle of neck to stretch through, the location, connect riveted joint between the axle through pivoted hole and one of them, can effectively locate an end of contact pin, it is good to reach inlay resultant force, the effect of firm combination.

That is to say, the utility model proposes the rotation rapid pipe joint assembly of chain, this assembly comprises two and connects axle and two contact pin, and two ends that connect axle are riveted on one respectively wherein in two perforation of contact pin, and one of them the other end that connects axle has neck; It is characterized in that: the perforation that has circular pivoted hole in another contact pin and occured simultaneously mutually and formed by great circle, roundlet, pivoted hole diameter be greater than the bar footpath that connects axle, the size of roundlet with connect shaft head and match; Pivoted hole and one of them connect shaft end and rivet mutually, and another neck that connects axle passes the great circle of contact pin, and clip is in the roundlet of perforation.

For realizing the purpose technological means, now enumerate preferred embodiment and conjunction with figs., after being described in detail in, wherein accompanying drawing is respectively:

Fig. 1 is a kind of side-looking decomposing schematic representation of the assembly of chain joint in the past;

Fig. 2 is that a kind of component groups of chain joint in the past is contained in cross-sectional schematic on the chain;

Fig. 3 is the another kind of side-looking decomposing schematic representation of chain joint assembly in the past;

Fig. 4 is the another kind of contact pin plan view of chain joint assembly in the past;

Fig. 5 is that another kind of chain joint component groups in the past is contained in the cross-sectional schematic on the chain;

Fig. 6 is the side-looking decomposing schematic representation of the utility model preferred embodiment;

Fig. 7 is the plan view of the utility model preferred embodiment upper splicing;

Fig. 8 is that the utility model preferred embodiment will be assembled in the plan view on the chain;

Shown in Figure 9 is that the utility model preferred embodiment is assembled in the cross-sectional schematic on the chain.

At first, see also Fig. 6, the utility model comprises 3,4 and two of upper and lower contact pin and connects axle 5,6, connecing axle 5 is bodies of rod of round bar shape, and body of rod bottom is riveted in the perforation 41 of low splicing 4, and the top forms straight end 51, and another connect the axle 6 bottoms similarly also be round bar shape, and be riveted in another perforation 42 of low splicing 4, the top forms the less neck 61 in bar footpath, and neck 61 tops are diameter and identical end 62, bar footpath; Please cooperate Fig. 7, upper splicing 3 is flat plate bodys, be equipped with the circular pivoted hole 31 and the perforation 32 of 8 fonts on the plate body, the slightly larger in diameter of pivoted hole 31 is in the bar footpath that connects axle 5, and it is corresponding with the top that connects axle 5, and another perforation 32 is to be occured simultaneously mutually by great circle 321 and roundlet 322 to form, and great circle 321 diameters are greater than the end 62 that connects axle 6, and the diameter of roundlet 322 matches with the neck 61 that connects axle 6.

Please cooperate Fig. 8,9, when the utility model proposes the chain joint assembly in combination, two that are combined with low splicing 4 connect axle 5,6 similarly pass two linings 91 of chain 9, and make end 51,62 protrude in two inner chain sheets 92 of chain 9 respectively, at this moment, the pivoted hole 31 that makes upper splicing 3 is corresponding to the end 51 that connects axle 5, and be inserted in the end 51, impose riveted joint processing then, connect axle 5 tops and make an end of upper splicing 3 be articulated in, what deserves to be explained is at this, described upper splicing 3 pivoted holes 31 slightly larger in diameter are in the bar footpath that connects axle 5, therefore, after combination, between the pivoted hole 31 of end 51 that connects axle 5 and upper splicing 3, has Yu crack 101, so still can connecing axle 5 bar after pivot joint, upper splicing 3 directly is axle center turn (promptly state) as shown in Figure 8, connect axle 5 with two then, 6 inwardly press pitch are dwindled, just can make and connect the great circle 321 of axle 6 end 62 corresponding to upper splicing 3, and be inserted in the great circle 321, and connect axle 5 when pressing two, after 6 strength is got rid of and when chain 9 is drawn back in both sides, the neck 61 that connects axle 6 is sheathed in the roundlet 322 of upper splicing 3, so just the two ends of chain 9 can be given combination.

By above explanation as can be known, improvement emphasis of the present utility model is that one in the adapter assembly is connect in the contact pin that a two ends is riveted on two upper and lower settings respectively.And the Yu crack will be formed between an end and contact pin, can make one of them connect being positioned between two contact pin of stabilizer shaft, and the perforation of only allowing one of them contact pin is rotated freely, and is articulated with another neck end that connects axle, makes it to reach the effect that inlay resultant force is good, winding is firm; The chain that described adapter assembly is assembled is in transmission, being assembled between two contact pin two connects axle and produces simultaneously and inwardly press, during the phenomenon of pushing, because one of them connects the two ends of axle and rivets respectively, be hubbed between two contact pin, therefore, can not push to central authorities because of external force, displacement, can displacement because of connecing axle, another connect axle monolateral to intrinsic displacement institute must strength just greatly (because two connect between the axle can the certain tension force of maintenance), so just, can two of constant maintenances connect axle and firmly be combined in two contact pin, this is with one of afterwards firm reason of described adapter assembly combination; In addition, after combination, two contact pin have an end at least and connect axle riveted joint mutually, therefore, even two connect axle and are subjected to inwardly squeezing the strength of pulling simultaneously, also can connect two ends riveted all because of one of them, do not have enough Yu crack displacements, so can not produce the shortcoming that contact pin flicks, this also is one of firm reason of described adapter assembly combination, so the utility model proposes adapter assembly, have the effect that inlay resultant force is good, combination is firm really.

Claims (1)

1, a kind of rotary rapid pipe joint assembly of chain, this assembly comprise two and connect axle and two contact pin, and two ends that connect axle are riveted on respectively in two perforation of one of them contact pin, and one of them the other end that connects axle has neck; It is characterized in that: the perforation that has circular pivoted hole in another contact pin and occured simultaneously mutually and formed by great circle, roundlet, pivoted hole and one of them connect the end of axle and rivet mutually, and another neck that connects axle passes the great circle of contact pin, and clip is in the roundlet of perforation.

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