CN1351238A

CN1351238A - Pivot unit and rotary joint therewith

Info

Publication number: CN1351238A
Application number: CN 00130316
Authority: CN
Inventors: 林郭祥; 江淑玲
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-10-30
Filing date: 2000-10-30
Publication date: 2002-05-29
Anticipated expiration: 2020-10-30
Also published as: CN1185430C

Abstract

A pivot unit and a rotary joint using it are disclosed. The first member of said pivot unit has a female join segment whose inner surface has at least one jamming slot of a ball. The second member has a male join segment which has at least one holding slot of ball, in which there is at least one elastic pad. When the male segment is inserted in the female one, the ball is fully held by the holding slot and compresses said elastic pad. When the ball is inserted in jamming slot, it can partly come in it under the action of elastic pad, so joining two member for rotating smoothly.

Description

Transmit device and use the swivel joint of this transmit device

The present invention relates to a kind of swivel joint, especially relate to a kind of swivel joint with transmit device.

At pneumatic tool, in gas piping or other the numerous field, it is common situation that one member is combined with the mode that another member engages with male and female mutually, after the public joining section of a common member inserts female joining section of another member, can insert with pin spare, the mode of wearing knot can not separated two members, as to make mode that two members engage according to male and female in conjunction with after still can be on same axis counterrotating words, it is obviously infeasible then to wear the mode of knot with pin spare, at this time the ball that then will have the bearing effect is taken into account, to be widely used in air tool swivel joint.

Consult Fig. 1, it has disclosed the cross-sectional configuration of a kind of " Low ESR leakproof swivel joint ", this swivel joint of commonly using is mainly by tube coupling spare 10, seal ring 11, series of balls 12, and plug 13 constitutes, tube coupling spare 10 1 ends are provided with outside thread to be bolted in pneumatic tool, and plug 13 1 ends formation pipe connects end with the rapid pipe joint of sleeve in wind regime, owing to be provided with series of balls 12 between plug 13 (member) and the tube coupling spare 10 (another member), make both to relatively rotate 360 degree and can not separate, so, pneumatic tool can not be subjected to the obstruction of pipeline (ajutage) and help operation when using.

The aforesaid rotary joint device of commonly using, be earlier seal ring 11 to be put into tube coupling spare 10 during assembling, public joint end with plug 13 inserts in female joint end of tube coupling spare 10 afterwards, again series of balls 12 is poured into by the hole 101 that defaults on the tube coupling spare 10, and then with hole 101 with capping 102 sealing, make plug 13 can't separate with tube coupling spare 10 and can rotate mutually by series of balls 12, such design, no doubt can reach the purpose of designs simplification, but its Applicable scope but is very restricted.For example, when it is fixedly arranged on the air tool inlet end of hammering type, just be easy to the generation problem, this be because the hammering type pneumatic tool in when work, its internal piston will be along with air inlet, the frequent shuttle alternately and repeatedly of exhaust is moving, and air inlet each time, exhaust, the capital changes its inner blast thereupon, therefore, tube coupling spare 10 and plug 13 are produced present tension-like drawing phenomenon (can clash into this moment), when diminishing, will make blast moment tube coupling spare 10 present lax shape with plug 13 relative drawing close (also can clash into this moment), so, an one tight loose ground conversion, to make tube coupling spare 10 and plug 13 clash continually and produce frequent vibration, be subjected to the influence of this oscillation phenomenon, capping 102 is moved back take off in hole 101, and then the situation that causes foreign material intrusion or ball to break away from, and make shorten the working life of whole swivel joint, therefore, this swivel joint only is applicable to the instrument such as air pressure gun, because this instrument is usually only in air-supply, the moment of disconnected wind just can make the blast of joint inside change.

Move back the problem of taking off because of vibration in order to improve above-mentioned capping 102, the claimant has proposed the swivel joint announcing No. 235705 the patent case is disclosed such as Taiwan, as shown in Figure 2, this swivel joint has at first proposed to make up tube coupling spare 20 and plug 21 with riveted way, though can not improve above-mentioned problem points really because of it uses above-mentioned capping 102, yet, for being easy to the punching press riveting, bends at the riveted end 21 that makes tube coupling spare 20 to encase series of balls 23, cause tube coupling spare 20 can not use high hardness material or heat-treat, in other words, the riveted end 21 of tube coupling spare 20 is not very hard, under long-term rotation, this riveted place is subjected to series of balls 22 wearing and tearing easily and causes gas leakage, for this reason, the claimant appends again subsequently and has proposed Taiwan and announce the patent case No. 266751, as shown in Figure 3, this patent case is announced the structure of No. 235705 patent case except possessing Taiwan, also set up a ring 30 with high hardness, with bearing as series of balls, prevent the wearing and tearing of riveted end thus, to improve its working life.

Yet, though the swivel joint shown in Fig. 2,3 has advantage, but still can't be long-term used in the hammering type pneumatic tool, inner blast changes continually rapidly because this instrument can make swivel joint, the frequent change of this blast will make tube coupling spare along axis violent relative collision take place with plug, and the result of long-term collision will make the riveted end of tube coupling spare reduce gradually and change straight by song, cause tube coupling spare to separate at last and make whole swivel joint just as disintegration with plug, therefore, it still only is applicable to the pneumatic tool (air pressure gun, paint spray gun) of non-hammering type.

Though the various swivel joints that disclose above are not sufficient to apply to for a long time the hammering type pneumatic tool, but, it not only is widely used in air pressure gun, paint spray gun, also be used in pipeline jointing construction in a large number, for example the structure patent case that pipe in No. 389292 the prevented water tap is turned round the shape return is announced in Taiwan, obviously continued to use the structure of commonly using that Fig. 1 disclosed fully, as seen, the shown pivot structure that comes out of the top various swivel joints that disclose, really can apply to different fields, both make it not be suitable for the hammering type pneumatic tool.

Top Fig. 2 that discloses and the shown design of Fig. 3, though being arranged, its advantage used till today, but, its structure is also simplified not as other swivel joint as shown in Figure 1, also comparatively bothersome in the assembling, these all will cause the increase of cost of production, in addition, they all are not suitable for the air tool problem of hammering type, need to improve yet.

In addition, the design of Fig. 1 to Fig. 3, all a member can be made up in the mode that male and female engages with another member, and all must use ball, in Fig. 1, ball is to be inserted by the hole of reserving behind two component compositions, and Fig. 2, in 3, ball then is to assemble together when combination, compares, the assembling mode of Fig. 1 looks like than trouble a bit, but in fact, because Fig. 2,3 structures are comparatively complicated, so, both assembling speeds are much the same in fact, in addition, they respectively have its shortcoming, and all may be in air tool application area, make two member relative separation, this is a problem of needing solution badly.

The object of the present invention is to provide a kind of designs simplification, low, quick and sturdy and durable easily, the suitable swivel joint that applies to the air tool transmit device of hammering type for a long time and use this transmit device of assembling of cost.

For achieving the above object, the invention provides a kind of transmit device, include first member and second member, on first member, establish an inside and be female joining section of hollow, establishing one on second member just can insert the public joining section in female joining section on first member in addition, it is characterized in that:

At least be arranged with a ball draw-in groove along the inner wall of female joining section, and on this public affairs joining section, be arranged with a ball tank at least, this ball tank and ball draw-in groove respectively have certain degree of depth, and be provided with an elastic pad at least in this ball tank, and ball is to overlay in this elastic pad and protrude from the ball tank; When the public joining section application of force is inserted in female joining section, ball is subjected to female joining section wall compressing and the interior and pressure elasticity pad of complete retraction ball tank, treat that ball is inserted into ball draw-in groove place, promptly some springs in the ball draw-in groove ball by the elastic pad effect, so that first member can combine with second structure with rotating relatively freely.

Described transmit device is characterized in that: this ball tank and ball draw-in groove are respectively ring-type.

Described transmit device is characterized in that: this mother's joining section is established the oblique surface of an oblique inside with respect to the end face ring of public joining section.

Described transmit device is characterized in that: this ball draw-in groove is square groove or just can encases and greater than the arc groove of half ball face.

Described transmit device is characterized in that: a side channel face of this ball tank is that vertical groove face, opposite side have one section outwards tiltedly and be positioned at the inclined trough surface at notch place near the groove face of public joining section insertion end, and the bottom side groove face then is horizontal groove face.

Described transmit device is characterized in that: the bottom side groove face of this ball tank is made of one section inclined-plane, location and one section horizontal groove face, and described elastic pad then is located at the section at this horizontal groove face place and limited by this inclined-plane, location.

Described transmit device is characterized in that: this elastic pad be a kind of have certain diameter and flexible, in order to be sheathed on the O shape ring of the horizontal groove face in ball tank bottom side.

Described transmit device is characterized in that: this elastic pad is a kind of elastomer with certain diameter and the flat ring-type of flexible hollow, and this elastomer outer rim is provided with some curve baths that concave.

The present invention also provides a kind of swivel joint that uses transmit device, it comprises at least can be to first member of instrument, can be incorporated into second member of blast connection, be arranged in the series of balls of the face that connects of this first member and second member on every side, and the seal washer of being located at this first member and the second member inserting position, and this first component inside is a hollow pipeline, and this first member also forms a female joining section with respect to the second member place, this mother's joining section is inner to form a bigger groove that plugs together, and the inside of described second member also is hollow pipeline, and this second member also forms one in order to insert the public joining section in the groove of plugging together of first member with respect to the first member place, it is characterized in that:

The cell wall certain position place that this mother's joining section inside plugs together groove establishes the ball draw-in groove one along the wall ring;

Described again public joining section is with respect to ball draw-in groove place, also be concaved with together around the ball tank, and be arranged with a ringwise elastic pad in this ball tank.

The swivel joint of described use transmit device is characterized in that: this elastic pad be a kind of have certain diameter and flexible, in order to be sheathed on the O shape ring of the horizontal groove face in ball tank bottom side.

The swivel joint of described use transmit device is characterized in that: this elastic pad is a kind of elastomer with certain diameter and the flat ring-type of flexible hollow, and this elastomer outer rim is provided with some curve baths that concave.

The swivel joint of described use transmit device is characterized in that: this ball tank and ball draw-in groove are respectively ring-type.

The swivel joint of described use transmit device is characterized in that: this mother's joining section is established the oblique surface of an oblique inside with respect to the end face ring of public joining section.

The swivel joint of described use transmit device is characterized in that: this ball draw-in groove is square groove or just can encases and greater than the arc groove of half ball face.

The swivel joint of described use transmit device, it is characterized in that: a side channel face of this ball tank is that vertical groove face, opposite side have one section outwards tiltedly and be positioned at the inclined trough surface at notch place near the groove face of public joining section insertion end, and the bottom side groove face then is horizontal groove face.

The swivel joint of described use transmit device is characterized in that: the bottom side groove face of this ball tank is made of one section inclined-plane, location and one section horizontal groove face, and described elastic pad then is located at the section at this horizontal groove face place and limited by this inclined-plane, location.

The swivel joint of described use transmit device, it is characterized in that: the sealing packing ring is an O shape ring, and described female joining section inside plugs together the bottom land of groove, be to extend to form first bevel phase downwards along plugging together the groove perisporium, and this first bevel phase place that continues, also extend to form a flat segments downwards along plugging together the groove perisporium again, and this vertical section place that continues, also extend to form one second bevel phase downwards along plugging together the groove perisporium again, and described public joining section is with respect to the end of female joining section, also protrude out and form a bit of nozzle belt, and an indent is formed on the bottom of this nozzle belt, the cambered surface that supplies described seal washer to be nested with.

The swivel joint of described use transmit device is characterized in that: this plugs together a bit of flat segments of the inboard formation of notch edge of groove, and this flat segments place that continues is also along plugging together the oblique surface that the groove perisporium extends to form an oblique inside downwards.

After having adopted technique scheme, among the present invention, be in female joining section of first member, to be arranged with a ball draw-in groove, reach in the public joining section of second member and be arranged with a ball tank, other is a sheathed elastic pad in the ball tank also, when series of balls enters the ball tank and exert pressure assembling first member and second member, ball inserts first pressurized retraction ball tank and pressure elasticity pad in the process of female joining section at public joining section, when waiting to slide to ball draw-in groove place, the ball beginning springs into the ball draw-in groove by elastic pad, the structure of simplifying thus, and can engage and make both to rotate relatively freely swimmingly and not break away from fast with second member first member.The present invention can be widely used in being connected between member and the member, the connection between two members that especially need rotate relatively freely, for example, to pneumatic tool swivel joint commonly used.Therefore, utilize the swivel joint of transmit device of the present invention, really the structure that can very simplify and reach the purpose of quick assembling, and be not to adopt the design of riveted formula because of it, and it is first years old, two members all can adopt high hardness material respectively or heat-treat, so that it is as hard as the ball and must avoid wearing and tearing under long-term the rotation, in addition, owing to need not to use the mode of capping sealing ball, therefore do not have capping yet and move back the problem of taking off because of long-term vibration, so utilize the benefit of transmit device of the present invention, be that not only structure simplifies, assembling is (fast) easily, cost of production can be reduced significantly, and sturdy and durable, the more important thing is, will make the swivel joint that utilizes it also be fit to the pneumatic tool of the dried hammering type of long-term utilization.

Below, with embodiment the present invention is done further detailed description in conjunction with the accompanying drawings.

Fig. 1 is first kind of generalized section of commonly using swivel joint.

Fig. 2 is second kind of generalized section of commonly using swivel joint.

Fig. 3 is the third generalized section of commonly using swivel joint.

Fig. 4 is the three-dimensional exploded view of preferred embodiment of the present invention.

Fig. 5 is the generalized section of preferred embodiment of the present invention.

Fig. 6 A, Fig. 6 B are the generalized sections of the assembling process of preferred embodiment of the present invention.

Fig. 7 is second member stress of preferred embodiment of the present invention or because of the generalized section of collision backlash.

Fig. 8 is the three-dimensional exploded view of another preferred embodiment of the present invention.

Fig. 9 is the generalized section of another preferred embodiment of the present invention.

Figure 10 the present invention is used in the drop hanger schematic representation of apparatus.

As Fig. 4, shown in 5, it has disclosed a kind of swivel joint that utilizes transmit device of the present invention, it comprises first member 40 of the instrument that can be screw-coupled at least, but sleeve is incorporated into second member 50 of airduct rapid pipe joint, be arranged in the ball A of the face that connects around this first member 40 and second member 50, and the seal washer B that is located at this first member 40 and second member, 50 inserting positions, and this first component inside 40 is a hollow pipeline, with and also form a female joining section 41 with respect to second member, 50 places, these mother's joining section 41 inside also form a bigger groove 42 that plugs together, inside as for described second member 50 also is hollow pipeline, and it also forms a public joining section 51 with respect to first member, 40 places, in order to insert the plugging together in the groove 42 of first member 40; Wherein:

The opening side that described female joining section 41 inside plug together groove 42 is provided with the oblique surface 421 of oblique inside, and also in the cell wall appropriate location that plugs together groove 42, establishes ball draw-in groove 422 one along the wall ring;

Described again public joining section 51 is with respect to ball draw-in groove 422 places, also be concaved with together around ball tank 52, and (for example also be arranged with a ringwise elastic pad 53 in this ball tank 52, suitably diameter and flexible O shape are encircled), and a side channel face of this ball tank 52 is that vertical groove face 521, opposite side have one section outwards tiltedly and be positioned at the inclined trough surface 522 at notch place near the groove face of public joining section 51 insertion ends, and the bottom side groove face then is made of one section inclined-plane 523, location and one section horizontal groove face 524.

Consult Fig. 6 B, when the assembling swivel joint, it is female joining section 41 of at first seal washer B being inserted first member 40, and make its female joining section 41 settle appropriate up, then the termination of the public joining section 51 of second member 50 slightly is inserted in and plugs together groove 42, enter plurality of balls A this moment, and then press down this second member 50 and make its related ball A deeply plug together groove 42, and in the ball draw-in groove 422 that ball A is snapped in plug together on the groove 42 (as shown in Figure 5), in order to finish the pivot joint of first member 40 and second structure 50.

In what this need further specify be, when going deep into slot 42 at public joining section 51 pressurizeds, at first take advantage of a situation and urge series of balls A and make its complete retraction ball tank 52 and pressure elasticity pad 53 by oblique surface 421, (please note between ball and the ball be not near and still have enough spaces to receive the compress variation of elastic pad) as shown in Figure 6A, along with the continuation pressurized of second member 50 moves down, each ball A and then moves down, wait to be displaced downwardly to ball draw-in groove 422 places, restoring force by elastic pad 53, each ball A will be sprung in the ball draw-in groove 422, as shown in Figure 5.

The blast variation that is produced when operating when pneumatic tool is reflected into first, during two members, first, two members will be along collision before and after the axis, when the backlash each time of second member (referring to shown in Figure 7), the inclined trough surface 522 of the ball tank ball A that will barocline, make ball press to and be close to the concave arc shape bottom land of ball draw-in groove, this make ball really fastening do not have fully in the ball draw-in groove retraction ball tank may, so, both made firmly with first, the relative application of force of two members, also can't be with it separation, on the other hand because first, two members fully can be through heat treatment improving its flintiness, and be difficult for because of the collision of front and back its ball tank or ball draw-in groove being deformed.

What need additional disclosure is, described elastic pad 53 is the sections that are set in this horizontal groove face 524, for making it that maximum decrement and maximum spring-go power can take place, it preferably is limited in this position, therefore, establish inclined-plane 523, a location in addition again to limit it, make the section of its difficult this horizontal groove face 524 that slips away arbitrarily, should also have reinforcement should locate the effect of structure in inclined-plane, location 523 again.

Moreover, continue to consult Fig. 8,9, this is to utilize another kind of swivel joint of the present invention, it mainly is by first member 60 that can be screw-coupled to instrument, but sleeve is incorporated into second member 70 of airduct rapid pipe joint, be arranged in the ball C of the face that connects of this first member 60 and second member 70 on every side, and the seal washer D that is located at the inserting position of this first member 60 and second member 70, and this first component inside 60 is a hollow pipeline, with and also form a female joining section 61 with respect to second member, 70 places, these mother's joining section 61 inside also form a bigger groove 62 that plugs together, inside as for described second member 70 also is hollow pipeline, and it also forms a public joining section 71 with respect to first member, 60 places, in order to insert the plugging together in the groove 62 of first member 60; Wherein:

Described female joining section 61 inside plug together the bottom land of groove 62, be to extend to form first bevel phase 621 downwards along its perisporium, and these first bevel phase, 621 places that continue, also extend to form a flat segments 622 downwards along its perisporium again, and these flat segments 622 places that continue, extend to form one second bevel phase 623 downwards along its perisporium again, the space that is made of this flat segments 622 and second bevel phase 623 is to settle for seal washer D (being-O shape ring), in addition, this plugs together a bit of flat segments 624 of the inboard formation of notch edge of groove 62, and this flat segments 624 places and extend to form the oblique surface 625 of an oblique inside along its perisporium downwards of continuing, and below this guide face 625 the cell wall appropriate location, also establish ball draw-in groove 626 one along the wall ring.

Described again public joining section 71 is with respect to ball draw-in groove 626 places, also be concaved with together around ball tank 72, and be arranged with a ringwise elastic pad 73 in this ball tank 72, and a side channel face of this ball tank 72 is vertical groove face 721, opposite side has one section outwards tiltedly and be positioned at the inclined trough surface 722 at notch place near the groove face of public joining section 71 insertion ends, the bottom side groove face then is made of one section inclined-plane 723, location and one section horizontal groove face 724, wherein, described elastic pad 73 is one to be the elastomer of the flat ring-type of hollow, and its outer rim is provided with some curve baths that concave 731, each curve bath 731 all is absorbed in about 1/2nd pearl bodies for a ball C relatively, in addition, at this public affairs joining section 71 with respect to female joining section 61 ends, also protrude out and form a bit of nozzle belt 711, and the cambered surface 712 of an indent is also formed on the bottom of this nozzle belt 711, in order to be placed on cambered surface 712 for above-mentioned seal washer D.

Above-mentioned swivel joint, the compound mode of its first member 60 and second member 70, haply with Fig. 4,5 disclosed identical, and can utilize the flat segments 624 of first slotware, 60 notch edge inboards to limit input ball C during combination, in order to avoid ball C drops in the process of assembling, in addition, described seal washer D is then when this joining section 71 is inserted into the location, just be sandwiched between the space and nozzle belt 711 that the flat segments 622 and second bevel phase 623 constituted, and can obtain good airtight effect; Moreover, what deserves to be mentioned is each curve bath 731 of elastic pad 73, can import and locate, separate each ball C relatively, make ball C can be evenly distributed in the conduit that slot rolling tank and ball draw-in groove constituted, make the rotation between first, second member more smooth and easy thus.

Above-mentioned two examples are to illustrate with the swivel joint that is used in pneumatic tool and gas piping, so it need be provided with associated mechanisms such as mobile pipeline of supplied gas and seal washer, if do not require airtight, then the sealing packing ring can be provided with, if not being used for the mobile usefulness of supplied gas fluid, then do not wear pipeline yet; In addition, what must emphasize once more is, proposed by the invention is a kind of transmit device of innovative design, as for the article that utilize this device, for example, drop hanger device shown in Figure 10 has then utilized the present invention and its hoist cable can not rotated along with the object of extension that drop hanger colludes, in addition, the multidirectional swivel joint of claimant's separate case application also is a kind of example application of the present invention.

Claims

1, a kind of transmit device includes first member and second member, establishes an inside and be female joining section of hollow on first member, and establishing one on second member just can insert the public joining section in female joining section on first member in addition, it is characterized in that:

2, transmit device as claimed in claim 1 is characterized in that: this ball tank and ball draw-in groove are respectively ring-type.

3, transmit device as claimed in claim 1 is characterized in that: this mother's joining section is established the oblique surface of an oblique inside with respect to the end face ring of public joining section.

4, transmit device as claimed in claim 1 is characterized in that: this ball draw-in groove is square groove or just can encases and greater than the arc groove of half ball face.

5, transmit device as claimed in claim 1, it is characterized in that: a side channel face of this ball tank is that vertical groove face, opposite side have one section outwards tiltedly and be positioned at the inclined trough surface at notch place near the groove face of public joining section insertion end, and the bottom side groove face then is horizontal groove face.

6, transmit device as claimed in claim 5 is characterized in that: the bottom side groove face of this ball tank is made of one section inclined-plane, location and one section horizontal groove face, and described elastic pad then is located at the section at this horizontal groove face place and limited by this inclined-plane, location.

7, transmit device as claimed in claim 1 is characterized in that: this elastic pad be a kind of have certain diameter and flexible, in order to be sheathed on the O shape ring of the horizontal groove face in ball tank bottom side.

8, as claim 1 or 7 described transmit devices, it is characterized in that: this elastic pad is a kind of elastomer with certain diameter and the flat ring-type of flexible hollow, and this elastomer outer rim is provided with some curve baths that concave.

9, a kind of swivel joint that uses transmit device, it comprises at least can be to first member of instrument, can be incorporated into second member of blast connection, be arranged in the series of balls of the face that connects of this first member and second member on every side, and the seal washer of being located at this first member and the second member inserting position, and this first component inside is a hollow pipeline, and this first member also forms a female joining section with respect to the second member place, this mother's joining section is inner to form a bigger groove that plugs together, and the inside of described second member also is hollow pipeline, and this second member also forms one in order to insert the public joining section in the groove of plugging together of first member with respect to the first member place, it is characterized in that:

10, the swivel joint of use transmit device as claimed in claim 9 is characterized in that: this elastic pad be a kind of have certain diameter and flexible, in order to be sheathed on the O shape ring of the horizontal groove face in ball tank bottom side.

11, the swivel joint of use transmit device as claimed in claim 9 is characterized in that: this elastic pad is a kind of elastomer with certain diameter and the flat ring-type of flexible hollow, and this elastomer outer rim is provided with some curve baths that concave.

12, the swivel joint of use transmit device as claimed in claim 9 is characterized in that: this ball tank and ball draw-in groove are respectively ring-type.

13, the swivel joint of use transmit device as claimed in claim 9 is characterized in that: this mother's joining section is established the oblique surface of an oblique inside with respect to the end face ring of public joining section.

14, as the swivel joint of claim 9 or 12 described use transmit devices, it is characterized in that: this ball draw-in groove is square groove or just can encases and greater than the arc groove of half ball face.

15, as the swivel joint of claim 9 or 12 described use transmit devices, it is characterized in that: a side channel face of this ball tank is that vertical groove face, opposite side have one section outwards tiltedly and be positioned at the inclined trough surface at notch place near the groove face of public joining section insertion end, and the bottom side groove face then is horizontal groove face.

16, the swivel joint of use transmit device as claimed in claim 15, it is characterized in that: the bottom side groove face of this ball tank is made of one section inclined-plane, location and one section horizontal groove face, and described elastic pad then is located at the section at this horizontal groove face place and limited by this inclined-plane, location.

17, the swivel joint of use transmit device as claimed in claim 9, it is characterized in that: the sealing packing ring is an O shape ring, and described female joining section inside plugs together the bottom land of groove, be to extend to form first bevel phase downwards along plugging together the groove perisporium, and this first bevel phase place that continues, also extend to form a flat segments downwards along plugging together the groove perisporium again, and this vertical section place that continues, also extend to form one second bevel phase downwards along plugging together the groove perisporium again, and described public joining section is with respect to the end of female joining section, also protrude out and form a bit of nozzle belt, and an indent is formed on the bottom of this nozzle belt, the cambered surface that supplies described seal washer to be nested with.

18, as the swivel joint of claim 9 or 17 described use transmit devices, it is characterized in that: this plugs together a bit of flat segments of the inboard formation of notch edge of groove, and this flat segments place that continues is also along plugging together the oblique surface that the groove perisporium extends to form an oblique inside downwards.