Universal head

Abstract

The utility model discloses a universal joint which comprises a threaded connector, a rotating structure and a connecting structure, the rotating structure is arranged on the threaded connector, the connecting structure is arranged on the rotating structure, and the rotating structure comprises a rotating shell, a limiting base, a first positioning bolt, a first retainer, a first ball, a rotating head, a groove, a second retainer, a second ball and an inserting hole. The rotating shell is fixedly arranged at one end of the threaded connector, the limiting base is arranged on the rotating shell in a threaded mode, the first positioning bolt penetrates through the rotating shell in a threaded mode and is screwed into the limiting base in a threaded mode, and the first retainer is placed at the front end of the limiting base. The utility model belongs to the technical field of universal heads, particularly relates to a universal head, and effectively solves the problems that the internal part of the universal head is limited and rotated by a limiting seat and a rotating seat, the rotating head and the internal part of the limiting seat are directly rubbed, the extrusion force is large, the friction force is large, and the rotating effect is poor.

Description

Technical Field

[0001] The utility model belongs to the technical field of universal heads, in particular to a universal head. Background Art

[0002] When the universal head is used to lift heavy objects, it connects the wire rope and the hanging basket to prevent the hanging basket from rotating with the wire rope and causing collisions. The existing universal head is internally limited by a limit seat and a rotating seat. The rotating head directly rubs against the inside of the limit seat, resulting in a large extrusion force, a large friction force, and a poor rotation effect. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the existing technology, the utility model proposes a universal head, which effectively solves the problem that the universal head is limited and rotated by a limit seat and a rotating seat, the rotating head directly rubs against the inside of the limit seat, the extrusion force is large, the friction is large, and the rotation effect is poor.

[0004] The technical solution adopted by the utility model is as follows: the utility model proposes a universal head, including a threaded connection head, a rotating structure and a connecting structure, the rotating structure is arranged on the threaded connection head, the connecting structure is arranged on the rotating structure, and the rotating structure includes a rotating shell, a limit base, a positioning bolt 1, a retaining frame 1, a ball 1, a rotating head, a groove, a retaining frame 2, a ball 2 and a socket, the rotating shell is fixedly arranged on one end of the threaded connection head, the limit base is threaded on the rotating shell, the positioning bolt 1 thread penetrates the rotating shell and is screwed into the limit base, the retaining frame 1 is placed on the front end of the limit base, the ball 1 is rolled on the groove between the lower side of the retaining frame 1 and the limit base, the rotating head is rotatably arranged on the inner side of the rotating shell and rotatably arranged above the ball 1, the groove is concave and wrapped around the outer side of the rotating head, the retaining frame 2 is rotatably arranged in the groove, the ball 2 is rolled in the arc groove inside the retaining frame 2, and the socket is vertically concave arranged in the rotating head.

[0005] Preferably, the connecting structure includes a connecting column, a second positioning bolt, a connecting seat and a limit pin hole. The connecting column passes through the limit base and is inserted into the connecting column on the rotating head. The second positioning bolt thread passes through the rotating head and is screwed onto the connecting column. The connecting seat is fixedly arranged at the rear end of the connecting column, and the limit pin hole passes through the outer wall of the connecting seat.

[0006] In order to achieve a smoother rotation effect, the balls are arranged in several groups between the limiting base and the rotating head.

[0007] In order to achieve the purpose of preventing falling off more quickly, the first positioning bolt is provided in four groups, and the second positioning bolt is provided in eight groups.

[0008] Furthermore, the front half of the rotating head is configured to be hemispherical and the rear half is configured to be cylindrical.

[0009] In order to achieve the limiting effect, the diameter of the limiting base is consistent with the diameter of the rotating head.

[0010] The beneficial effects achieved by the utility model using the above structure are as follows: a universal head proposed in this scheme is provided with a retaining frame 1 between the limit base and the rotating head, and a ball 2 is provided between the rotating head and the inner wall of the rotating shell, so as to improve the rotation effect and maintain smooth rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the overall structure of a universal head proposed by the utility model;

[0012] Figure 2 This is a schematic cross-sectional structure diagram of a universal head proposed in the present invention;

[0013] Figure 3 This is another cross-sectional structural diagram of a universal head proposed by the present invention.

[0014] Among them, 1. threaded connector, 2. rotating structure, 3. connecting structure, 4. rotating shell, 5. limiting base, 6. positioning bolt 1, 7. retaining frame 1, 8. ball 1, 9. rotating head, 10. groove, 11. retaining frame 2, 12. ball 2, 13. jack, 14. connecting column, 15. positioning bolt 2, 16. connecting seat, 17. limiting pin hole.

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0017] like Figure 1 、 Figure 2 and Figure 3As shown, the utility model proposes a universal head, including a threaded connector 1, a rotating structure 2 and a connecting structure 3. The rotating structure 2 is arranged on the threaded connector 1, and the connecting structure 3 is arranged on the rotating structure 2. The rotating structure 2 includes a rotating shell 4, a limiting base 5, a positioning bolt 6, a retaining frame 7, a ball 8, a rotating head 9, a groove 10, a retaining frame 11, a ball 12 and a socket 13. The rotating shell 4 is fixedly arranged on one end of the threaded connector 1, the limiting base 5 is threaded on the rotating shell 4, the positioning bolt 6 thread passes through the rotating shell 4 and is screwed into the limiting base 5. Four groups of positioning bolts 6 are provided, and the retaining frame 7 is placed on the limiting base. At the front end of the positioning base 5, ball 18 is rollingly set on the groove 10 between the bottom of the retaining frame 7 and the limiting base 5, the rotating head 9 is rotatably set on the inner side of the rotating shell 4 and rotatably set above the ball 18, and several groups of ball 18 are rollingly set between the limiting base 5 and the rotating head 9. The front half of the rotating head 9 is set in a hemispherical shape and the back half is set in a cylindrical shape. The diameter of the limiting base 5 is consistent with the diameter of the rotating head 9. The groove 10 is concave and wrapped around the outer side of the rotating head 9. The retaining frame 2 is rotatably set in the groove 10, and the ball 2 12 is rollingly set in the arc groove of the groove 10 inside the retaining frame 2 11, and the socket 13 is vertically recessed in the rotating head 9.

[0018] like Figure 2 and Figure 3 As shown, the connecting structure 3 includes a connecting column 14, a second positioning bolt 15, a connecting seat 16 and a limiting pin hole 17. The connecting column 14 passes through the limiting base 5 and is inserted into the connecting column 14 on the rotating head 9. The second positioning bolt 15 is threaded through the rotating head 9 and is screwed onto the connecting column 14. Eight groups of the second positioning bolts 15 are provided. The connecting seat 16 is fixedly provided at the rear end of the connecting column 14. The limiting pin hole 17 is provided through the outer wall of the connecting seat 16.

[0019] When in use, place the ball 18 and the retainer 17 on the front end circular groove of the limit base 5, then pass the connecting column 14 through the limit base 5 to leak out the front end, then insert the socket 13 on the rotating head 9 into the connecting column 14, use the positioning bolt 2 15 threaded through the rotating head 9 and insert it into the connecting column 14, set eight groups to stably fix the connecting column 14 and the rotating head 9, then insert the rotating shell 4 on the threaded connector 1 from the upper end of the rotating head 9 downward to the limit base 5, screw the rotating shell 4 on the limit base 5, and finally thread the positioning bolt 16 through the threaded connector 1. The rotating shell 4 is threadedly inserted into the limiting base 5, thereby completing the installation of the universal head. The threaded connector 1 is connected to the wire rope, and the connecting base 16 is connected to the hanging basket. A pin is used to pass through the limiting pin hole 17 to fix it. When in use, the connecting base 16 pulls the rotating head 9 on the connecting column 14 downward and squeezes it onto the ball 1 8. At this time, the ball 1 8 rolls between the limiting base 5 and the rotating head 9, and the ball 2 12 rolls between the rotating head 9 and the inner wall of the rotating shell 4, thereby improving the smooth rotation effect. The above is the installation and use process of the entire universal head.

[0020] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0021] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

[0022] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A universal head, characterized in that: The cam is fixed on one end of the rotating head, and the limit base is threadedly arranged on the rotating shell. The cam is threadedly arranged on the rotating shell, and the positioning bolt is threadedly passed through the rotating shell and screwed into the limit base. The retaining frame is placed on the front end of the limit base. The ball is rolled on the groove between the lower part of the retaining frame and the limit base. The rotating head is rotatably arranged on the inner side of the rotating shell and rotatably arranged above the ball. The groove is concave and wrapped around the outer side of the rotating head. The retaining frame is rotatably arranged in the groove. The ball is rolled in the arc groove inside the retaining frame, and the socket is vertically concave and arranged in the rotating head.

2. The universal head according to claim 1, characterized in that: The connecting structure includes a connecting column, a second positioning bolt, a connecting seat and a limit pin hole. The connecting column passes through the limit base and is inserted into the connecting column on the rotating head. The second positioning bolt thread passes through the rotating head and is screwed onto the connecting column. The connecting seat is fixedly arranged at the rear end of the connecting column, and the limit pin hole passes through the outer wall of the connecting seat.

3. The universal head according to claim 2, characterized in that: The balls are arranged in a rolling manner in groups between the limiting base and the rotating head.

4. The universal head according to claim 3, characterized in that: The first positioning bolts are provided in four groups, and the second positioning bolts are provided in eight groups.

5. The universal head according to claim 4, characterized in that: The front half of the rotating head is arranged in a hemispherical shape and the rear half is arranged in a cylindrical shape.

6. The universal head according to claim 5, characterized in that: The diameter of the limiting base is consistent with the diameter of the rotating head.

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