CN201062695Y - Improved structure of universal adjusting joint - Google Patents

Abstract

The utility model relates to an improved universal adjusting joint structure, in particular to an improved innovative structure aiming at the defects of inflexible adjustment and inconvenient use caused by the interference friction of the contact surface of the existing universal joint combination and the increased part consumption cost of an O-shaped ring; the external sleeve comprising an inner flange at one end provides a universal connecting rod penetrating set, so that a spherical head at one end is clamped and blocked at the inner end edge of the inner flange, the inner wall of the external sleeve is sleeved and connected with an O-shaped ring by a ring groove relative to the middle section of the spherical head to be pressed and connected with the other end of the external sleeve by matching with a joint connecting section; the inner side end edge of the inner flange of the external connecting sleeve and the inner hole end of the joint combining section form point contact compelling support with the spherical head of the universal connecting rod, so that the friction and the interference of the contact area of the structure combination are reduced, and the smooth adjustment can be realized; and the single O-ring is pressed against the spherical head to effectively reduce the consumption of parts and the material preparation cost and omit the processing of the cambered surface, thereby having the advantages of convenient use, easy manufacture and economic benefit.

Description

Structural Improvement of Universal Adjusting Joint

technical field

The utility model mainly relates to an innovative design of a universal adjustment joint structure combination that can be easily and smoothly adjusted and is convenient for processing and manufacturing.

Background technique

Press, such as China Taiwan on October 1, 95, the publication number is 200633815, and the invention patent case of the "improved structure of the dust collection joint of pneumatic tools" of the application No. 94108068, as shown in the accompanying drawings, its universal joint 1 with its spherical The connecting portion 12 of the universal joint 1 is first assembled with a locking piece 5, and then the locking piece 5 is locked with the external thread section 42 of the connecting pipe 4, so that the spherical connecting portion of the universal joint 1 is forced to be assembled in the concave shape of the connecting pipe 4. The accommodating space 43 of the spherical concave surface is a large-area contact structure in the form of a spherical surface, which often hinders the steering adjustment of the universal joint due to excessive frictional interference, making the adjustment action inflexible and inconvenient in use. its biggest shortcoming.

Again, as No. 227291 of announcement on July 21, 83, and application No. 83203866 " the improvement of air pressure universal joint " novel patent case, as shown in its Fig. 2, Fig. 2 is to be put on one respectively with two adapters The spheroids at both ends of the transfer rod are in surface contact with the spheroids of the transfer rod with the ring cylinder and the ladder part, and each cooperates with two O-rings to press against the front and rear sides of the spheroid, forming a large-scale One of its disadvantages is frictional interference during steering adjustment, which makes the adjustment action inflexible and inconvenient in use.

Furthermore, two O-rings must be matched in the adapter to press against the front and rear sides of the spherical body, which causes the consumption of O-ring parts and increases the cost of material preparation, which is the second disadvantage. Also, as shown in Figure 4, the adapter rod with a small diameter in the middle section is an adapter joint that is looped by spherical bodies at both ends, and the adapter joints at both ends can be adjusted at both ends of the adapter rod as shown by the dotted line in the figure. The adjustment operation at both ends will form a concentration of acting stress on the small diameter section in the middle of the adapter rod, which will easily break the adapter rod from the middle, which is the third disadvantage.

Furthermore, as on March 21, 1991, the No. 481058 Approval Announcement and the No. 90202879 "Water Joint Improvement of Water Spray Gun" new patent case, it is located in a spherical rotating body in the external connection and cooperates within a base The inner cone surface on the side corresponds to the spherical arc surface on the outside of the spherical rotating body for the rotating body to slide in the inner cone surface. However, the contact combination formed between the upper base and the rotating body is about half the area of the sphere , will cause the obstacle of the universal joint when steering adjustment due to excessive friction interference, and also make the adjustment action inflexible and inconvenient in use, which is its biggest shortcoming.

At last, as No. 472839 of approval announcement on January 11, 91, and application No. 90201245 " joint structure improvement " new-style patent case, its combined structure comprises a front end as shown in Fig. The end of the pipe body has an inner screw hole after passing through the step-by-step reaming groove of the O-ring, and the inner screw hole is for a pair of arc hollow screw caps corresponding to the spherical part of the hollow universal joint. The spherical part of the hollow universal joint is accommodated in the inner screw hole of the joint part and the arc hollow screw cover, and is sealed by the interference of the O-ring and the sealing ring; as mentioned above, the spherical part of the hollow universal joint Conflicted by arc-shaped hollow screw caps, O-rings and sealing rings, large-area contact and frictional interference will also be formed, making it difficult to adjust the angle, which is the biggest shortcoming.

Furthermore, the above-mentioned methods are combined with arc surface contact, in addition to the disadvantages of large contact area, increased friction and interference during steering adjustment, making the adjustment action inflexible, and have the common disadvantage of being difficult to process and manufacture.

Utility model content

Technical issues to be solved:

Therefore, how to improve the design for the shortcomings of the existing universal joints, which have too large contact area, resulting in inflexible adjustment, inconvenient use, and difficult processing and manufacturing, is the difficulty that the utility model intends to solve.

The main purpose of this utility model is to provide an improved structure of the universal adjustment joint. The outer surface of the spherical head of the universal joint is pressed against the limit by point contact, so as to reduce the frictional interference caused by the contact area of the combined assembly. , to achieve both the ease of use of smooth adjustment and the effect of simpler processing and manufacturing.

The second purpose of this utility model is to provide an improved universal adjustment joint structure, with a single O-ring limiting the spherical head of the universal joint, so as to greatly reduce the O-ring parts consumption and material preparation The cost is achieved with economic benefits.

Another purpose of this utility model is to provide an improved structure of a universal adjustable joint, which can be combined with two universal joints with spherical heads at both ends of an external sleeve to form two ends for adjustment and use to avoid adjustment stress concentration. Structural damage, better durability achieved.

Technical means to solve the problem:

In order to achieve the above purpose, the utility model provides an improved universal adjustment joint structure, which is characterized in that it includes:

An outer sleeve, with an inner flange on one end and an inner threaded hole on the other end, and an O-ring on the inner wall with a ring groove;

Universal connecting rod, a hollow rod body with a spherical head at one end is provided with a joint section below the spherical head for connecting with the end joints of the pipe fittings;

Connector, one end corresponds to the coupling section with external thread on the external sleeve, and the other end is an external thread coupling end, which is connected to the pipe joint with external and internal screw holes;

The above-mentioned universal rod is put through the outer sleeve so that the spherical head is stuck on the inner edge of the inner flange, and the O-ring is forced to be assembled on the spherical head, and the outer threaded section of the joint is screwed with the outer sleeve so that it is in contact with the inner flange of the outer threaded section. The inner edge of the hole end and the inner flange of the external sleeve pushes against the spherical head of the universal joint to form a limit joint of point contact.

Wherein, the inner wall of the other end of the external sleeve and the connecting section of the joint can be buckled and combined with a backstop buckle edge structure relative to each other.

Among them, the universal joint rod can be matched with a set in an elongated external sleeve, and then inserted into the outer end of the pressing spherical head at a certain interval, and then cooperated with the second universal joint rod to extend the spherical head into the external sleeve and The other end of the spacer sleeve is set against, and the outer sleeve is placed on the inner wall of the outer convex section in the middle of the spherical head of the universal joint rod. An O-ring is also used to form an O-ring to form a press, and then an outer limiter is combined with the joint section. The external thread is screwed to the other end of the extended external sleeve, so that the inner end of the joint section and the two ends of the spacer sleeve press the spherical head of the second universal joint with the inner edge, forming a universal joint structure with adjustable ends.

Wherein, a lengthened outer sleeve can be provided with internal thread holes at both ends, and a small-diameter flange is integrally protruded from the inner wall of the middle section. The two ends extend into the inner edges of the two ends of the small diameter flange, and then cooperate with the external threads of the joint section of the two outer stoppers to respectively combine with the two internal thread holes of the outer sleeve, so that the inner hole end of the joint section and the small diameter flange are respectively on the inner side. The end edge presses the spherical heads of two universal joints to form a universal joint structure with adjustable ends.

Wherein, the outer limiting part and the outer connecting sleeve can be fastened and combined with a backstop buckle edge, and the second universal connecting rod can be buckled with a backstop buckle edge and an outer connecting pipe.

The beneficial effects of the utility model are:

The structure of the universal adjustment joint of the utility model is improved, and the outer surface of the spherical head of the universal joint is pressed against the limit by point contact, so as to reduce the frictional interference caused by the contact area of the combined assembly, and achieve the convenience of smooth adjustment. It also has the functions of simple processing and manufacturing; it uses a single O-ring limit to press against the spherical head of the universal joint, so as to greatly reduce the parts consumption and material preparation cost of the O-ring, and achieve economic benefits; it is a combination Two universal sockets with spherical heads are assembled at both ends of an external socket to form two-end adjustments to avoid structural damage caused by adjustment stress concentration, and to achieve better durability.

Description of drawings

Below, a specific embodiment is listed in conjunction with the accompanying drawings, and the construction content of the present utility model is introduced in detail, and the functional benefits that can be achieved are as follows, wherein:

Fig. 1 is a three-dimensional exploded view of the utility model.

Fig. 2 is a three-dimensional assembled view of the utility model.

Fig. 3 is a combined cross-sectional schematic diagram of the utility model.

Fig. 4 is a three-dimensional exploded view of the structure of the adjustable joint at both ends of the utility model.

Fig. 5 is a combined cross-sectional schematic diagram of the adjustable joint at both ends of the utility model.

Fig. 6 is a schematic diagram of another combination of adjustable joints at both ends of the utility model.

Detailed ways

As shown in Figure 1, it is a three-dimensional exploded schematic diagram of the utility model, which is composed of an outer socket 10, a universal joint 20 and a joint 30, etc., wherein;

The outer sleeve 10 is set on one end with an inner inner flange 11 protruding and the other end is set as an internal thread hole 12, and the outer sleeve is sleeved with a ring groove 13 at a suitable position on the inner wall (relative to the outer convex section in the middle of the spherical head). Type ring 14.

The universal connecting rod 20, a hollow rod body with a spherical head 21 at one end is set as a joint section for tacking under the spherical head.

The connector 30 has an externally threaded coupling end 32 at one end, and a coupling section 31 corresponding to the external thread on the other end.

The combination of the above structures is that the universal joint rod 20 can be threaded into the outer sleeve 10, so that the spherical head 21 is blocked by the inner edge 111 of the inner flange 11, and then the outer threaded section 31 of the joint 30 is screwed to the outer sleeve 10, Make the end of the inner hole of the external thread section 31 press the spherical head 21 of the universal joint 20 with the inner end edge 311 to limit the joint (as shown in Figure 3), and form the three-dimensional structure shown in Figure 2, which can be combined by the joint 30 The end 32 is used for connection with pipe joints with external and internal screw holes, and the joint section at the outer end of the universal joint rod 20 is used for connecting with the end joints of the matching pipe fittings.

As shown in Figure 3, it is a combined cross-sectional schematic diagram of the present utility model, which can be used at the end of the inner hole of the joint section 31 of the inner flange 11 of the outer sleeve 10 and the joint 30, each with the spherical shape of the inner edge 111, 311 and the universal joint 20. The head 21 forms point contact pressing to reduce the friction and interference of the contact area of the structure combination, so that the universal joint 20 can swing smoothly and adjust without obstacles, as shown by the solid and dotted lines in the figure; and a single O-ring 14 is used to press The spherical head 21 greatly reduces the consumption of parts and the cost of material preparation, and can also omit the inconvenience of arc surface processing, which is convenient to use, easy to process and manufacture, and achieves economic benefits. As shown by the dotted line in the figure, the inner wall of the other end of the outer sleeve 10 and the connecting section 31 of the joint 30 can be combined with the backstop buckle edge structure A relative to each other.

As shown in Figure 4, it is a three-dimensional exploded view of the structure of the adjustable joint at both ends of the utility model. A spacer sleeve 40 can be inserted into an extended outer joint sleeve 10' to push the outer end of the spherical head 21 of the universal joint rod 20. , and then cooperate with the second universal joint 20' to extend the spherical head 21' into the outer sleeve 10' and the other end of the spacer sleeve 40, and the inner wall of the outer sleeve 10' is opposite to the spherical head of the second universal joint 20' 21 The middle outer convex section is also connected with an O-ring 14 by the ring groove 13 to form a pressing force, and cooperates with the joint section 51 of an outer limiter 50 to be screwed with the other end of the outer sleeve 10' to form an adjustable at both ends The universal joint structure is shown in Figure 5.

In Fig. 5, the inner flange 11 of the outer joint sleeve 10' and the outer stopper 50 combine with the end of the inner hole of the section 51 and the two ends of the spacer sleeve 40, and the inner end edges 111, 511, 41 push the two universal connecting rods 20 respectively. , 20' and 20' spherical heads 21, 21' point contact limit combination, so that the universal joint rods 20, 20' at both ends can be flexibly and easily adjusted as shown by the arrow in the figure, and the stress of the adjustment operation at both ends can be avoided. The outer sleeve 10' concentrates on causing structural damage, and achieves better durability.

As shown by the hollow arrow in the figure, between the outer stopper 50 and the outer sleeve 10', and between the second universal joint 20' and an outer joint 60, there can be a reverse stop buckle edge A structure relative to each other. Button knot combination.

As shown in Fig. 6, another combination schematic diagram of the adjustable joint at both ends of the utility model. The extended external sleeve 10' can be provided with internally threaded holes 12' at both ends, and a small-diameter flange 15' is integrally protruded from the inner wall of the middle section, so that the two universal joints 20, 20' are respectively equipped with spherical heads 21, 20, 21' extends from both ends of the outer sleeve 10' into the inner edge 151' of the two ends of the small-diameter flange 15', and cooperates with the external threads of the joint section 51 of the two outer stoppers 50 to respectively combine with the two internal threads of the outer sleeve 10' hole 12', so that the inner end edge 511 of the inner hole end of the joint section 51 pushes the spherical heads of the two universal joint rods 20, 20', and also forms a universal joint structure that can be easily adjusted at both ends by point contact limit, and avoids The adjustment operation stress concentrates on the outer sleeve 10 ′ to cause structural damage, which has better durability.

Also between the two outer stoppers 50 shown in FIG. 6 and the outer socket 10', and between the second universal joint 20' and an outer tube 60, as shown in FIG. The edge A structure is buckled and combined.

In summary, knowing that this utility model has industrial applicability and progress, and this utility model has not been seen in any publications, it is also novel and should comply with the provisions of the Patent Law, so the application for a utility model is filed according to law.

Claims (5)

1. a universal regulated joint structure improvement is characterized in that, comprises:

External cover, be an end be convexly equipped with an inboard inward flange and in addition end be made as interior threaded hole, and its inwall is with annular groove noose one O type ring;

Universal extension bar, the hollow lever of an end tool ball head, is connected for the end-fitting that cooperates pipe fitting to divide into an adapter section in ball head;

Joint, the corresponding external externally threaded adapter section that is arranged with of an end, end is an outside thread binding end in addition, the pipe joint of the outer inner bolt hole of sacrificial vessel connects;

Above-mentioned universal extension bar is worn the external cover of group and is made the inboard ora terminalis of ball head jam in inward flange, and O type ring compels to organize in ball head, joint is tied external cover with the external thread section spiral shell, make with external thread section in nose end and external cover inward flange each compel universal extension bar ball head with inboard ora terminalis top, form the spacing combination of some contact.

2. universal regulated joint structure as claimed in claim 1 improvement is characterized in that, wherein, its external cover holds inwall and joint can be relative to buckle the edge structure with check and buckle roped party and close in conjunction with intersegmental in addition.

3. universal regulated joint structure improvement as claimed in claim 1, it is characterized in that, wherein, but universal extension bar engage sleeves group is in the external cover of a lengthening, be inserted in the outer end that ball head is compeled on the top with a spacer segment cover again, cooperate again the second universal extension bar with ball head stretch into external cover and spacer sleeve in addition the end cover support, the external inwall that is enclosed within the relative ball head centre outwardly projecting portion of this universal extension bar also with annular groove noose one O type ring form compel to, cooperate the external cover of the outside thread spiral shell knot lengthening of an outer bounding means adapter section to hold in addition again, each compels the second universal extension bar ball head with inboard ora terminalis top to make interior nose end of adapter section and spacer sleeve two ends, forms the adjustable universal joints structure in two ends.

4. universal regulated joint structure improvement as claimed in claim 1, it is characterized in that, wherein, cooperate the external cover of a lengthening to be made as interior threaded hole in two ends, and be convexly equipped with one section path flange in its stage casing inwall one, the universal extension bar and the second universal extension bar stretch into from external cover two ends with ball head respectively and are butted on the inboard ora terminalis in path flange two ends, cooperate the outside thread of two outer bounding means adapter sections to be incorporated into external cover two interior threaded holes respectively again, each compels two universal joint ball head with inboard ora terminalis top to make interior nose end of adapter section and path flange, forms the adjustable universal joints structure in two ends.

5. as claim 3 or the improvement of 4 described universal regulated joint structures, it is characterized in that, wherein, can be relative between its outer bounding means and the external cover buckle edge and buckle and tie combination, and the second universal extension bar can be tied an externally connected pipe by check button edge button with check.

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