Universal rotating shaft used for being matched with table lamp to rotate

Abstract

The utility model discloses a universal rotating shaft used for being matched with a table lamp to rotate, which comprises a connecting base, a ball cup arranged on the connecting base, a ball shaft connected with a table lamp supporting piece in a matched mode, an annular limiting edge arranged at the top end of the ball cup and used for limiting a ball piece in a ball groove, and an annular limiting edge arranged on the inner side of the matched ball cup. The ball head piece is limited in the ball head seat, meanwhile, the ball head piece can be matched to incline by 0-25 degrees on the ball head seat and rotate by 360 degrees at will according to the requirement for the table lamp, an adjusting groove which is communicated with the ball head groove and is coaxial with the ball head groove is formed in the bottom of the connecting base, and an adjusting bolt is spirally installed in the adjusting groove. The ball head shaft can be freely adjusted within the maximum torsion of 25 KGF-CM, and the stability of supporting and using the table lamp is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of table lamp accessories, in particular to a universal rotating shaft used for cooperating with a table lamp to rotate. Background Art

[0002] In order to enable the table lamp to rotate in accordance with the angle change of the light used by the table lamp when in use, a rotating shaft is usually provided at the connection between the table lamp base and the support member to cooperate with the support frame to rotate according to the use of the table lamp, so as to achieve the purpose of adjusting the light angle used by the table lamp. In order to adjust the use angle of the table lamp at multiple angles, a table lamp currently adopts a universal rotating shaft to cooperate with the support member and the base. While the rotating shaft cooperates with the support member to stably support the table lamp on the base, the use angle of the table lamp can be arbitrarily adjusted according to the use of the table lamp.

[0003] However, since the universal shaft used with the desk lamp is mostly composed of a ball head, a ball seat supported by the ball head, and a housing, when the ball head and the ball seat are assembled, a matching bearing is required (i.e., a rolling element is matched to reduce friction when the ball head rotates in the ball seat). After long-term and repeated rotation, the universal shaft of this structure may become loose between the ball head and the ball seat, weakening the supporting force of the support on which the desk lamp is installed, causing the support to automatically rotate under the weight of the desk lamp, resulting in an angle change, which affects the normal use of the desk lamp.

[0004] Therefore, the utility model provides a universal shaft capable of adjusting the bearing force of the universal shaft and used for cooperating with the rotation of the desk lamp. Utility Model Content

[0005] The purpose of the utility model is to provide a universal shaft for cooperating with the rotation of a desk lamp to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A universal shaft for rotating with a desk lamp, comprising a connecting base, a ball head seat arranged on the connecting base, and a ball head shaft connected with a desk lamp support, wherein an inner quilt is arranged in a ball head groove on the ball head seat, and an outer side surface of the inner quilt is provided with a receiving arc groove coaxial with the inner quilt, a ball head piece at the front end of the ball head shaft is arranged in the receiving arc groove, and a ring-shaped limiting edge for limiting the ball head piece in the ball head groove is provided at the top end of the ball head seat;

[0008] An adjusting groove which is connected with the ball head groove and coaxial with the ball head groove is provided at the bottom of the connecting base, and an adjusting bolt which is pressed against the ball head piece by a spring sheet is spirally provided in the adjusting groove.

[0009] Furthermore, the inner side surface of the annular limiting edge is arranged in an arc shape corresponding to the outer arc surface of the ball head component. The annular limiting edge limits the ball head component in the ball head groove and cooperates with the ball head component to rotate in the ball head groove.

[0010] Furthermore, the outer edge of the front side of the connecting base is evenly distributed with four positioning holes, and bolts are inserted through the positioning holes to penetrate the connecting base, so as to achieve the purpose of assembling the connecting base and the desk lamp base.

[0011] Furthermore, a gasket is provided between the adjusting bolt and the spring sheet to separate the adjusting bolt and the spring sheet. The gasket is placed between the adjusting bolt and the spring sheet. When the adjusting bolt is rotated to press the spring sheet inward, the gasket contacts the rotating adjusting bolt, thereby avoiding the problem of friction between the outer side of the spring sheet and the reduction of the service life of the spring sheet caused by the rotation of the adjusting bolt.

[0012] Furthermore, a slot is provided at the end of the bolt, and the bolt is rotated in the adjustment slot by the slot-matching tool to move the position of the bolt in the adjustment slot.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The universal shaft used to cooperate with the rotation of the desk lamp has an inner quilt in the ball head seat for supporting the ball head part on the ball head shaft. The inner quilt cooperates with the annular limiting edge on the inner side of the ball head seat to limit the ball head part in the ball head seat and cooperate with the ball head part on the ball head seat to tilt 0-25 degrees and rotate 360 ​​degrees according to the needs of the desk lamp.

[0015] A spring sheet that is pressed inwardly by an adjusting bolt is arranged in an adjusting groove that connects the base and the ball head groove, and the arc surface inside the spring sheet contacts the bottom surface of the inner quilt. When it is necessary to adjust the supporting strength of the support member that cooperates with the ball head shaft to support the desk lamp, the user rotates the adjusting bolt to move the adjusting bolt to the spring sheet position, and the spring sheet is moved inwardly toward the annular limiting edge position, thereby increasing the pressure of the ball head member in the ball head groove, thereby achieving the bearing capacity of the ball head shaft and the support member to support the desk lamp; or the adjusting bolt is reversed, and the pressure of the adjusting bolt on the spring sheet against the ball head member is weakened, thereby reducing the pressure of the ball head member in the ball head groove, thereby achieving the purpose of weakening the supporting force of the ball head shaft and the support member to support the desk lamp. By adjusting the bolt and cooperating with the spring sheet to be pressed inwardly to support, the ball head shaft can be adjusted at will within the maximum torque of 25KGF-CM, thereby improving the stability of the desk lamp support. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 Another perspective structural diagram of;

[0018] Figure 3 For this utility model Figure 1 A schematic diagram of the structure in which the middle ball head is removed from the ball head slot;

[0019] Figure 4 For this utility model Figure 1 Schematic diagram of the main cross-section structure;

[0020] Figure 5 For this utility model Figure 1 Schematic diagram of the explosion structure;

[0021] Figure 6 It is a structural schematic diagram of the inner quilt of the utility model.

[0022] In the figure: 1. connecting base; 2. ball head seat; 3. ball head shaft; 4. receiving arc groove; 5. ball head groove; 6. inner quilt; 7. slot; 8. ball head piece; 9. annular limit edge; 10. adjustment groove; 11. spring piece; 12. adjustment bolt; 13. positioning hole; 14. gasket. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-6 , the utility model provides a technical solution:

[0025] A universal shaft for rotating with a desk lamp, comprising a connecting base 1, a ball head seat 2 arranged on the connecting base 1, and a ball head shaft 3 connected with a desk lamp support, an inner quilt 6 is arranged in a ball head groove 5 on the ball head seat 2, and an outer side surface of the inner quilt 6 is provided with a receiving arc groove 4 coaxial with the inner quilt 6, a ball head piece 8 at the front end of the ball head shaft 3 is arranged in the receiving arc groove 4, and a ring-shaped limiting edge 9 for limiting the ball head piece 8 in the ball head groove 5 is provided at the top end of the ball head seat 2;

[0026] An adjusting groove 10 connected to and coaxial with the ball head groove 5 is provided at the bottom of the connecting base 1 , and an adjusting bolt 12 is spirally provided in the adjusting groove 10 for pressing the inner liner 6 against the ball head member 8 through a spring sheet 11 .

[0027] The inner side surface of the annular limiting edge 9 is arranged in an arc shape corresponding to the outer arc surface of the ball head member 8 . The annular limiting edge 9 limits the ball head member 8 in the ball head groove 5 and cooperates with the ball head member 8 to rotate in the ball head groove 5 .

[0028] Four positioning holes 13 are evenly distributed on the outer edge of the front side of the connecting base 1. Bolts are inserted through the positioning holes 13 to penetrate the connecting base 1, so as to achieve the purpose of assembling the connecting base 1 with the table lamp base.

[0029] A gasket 14 is provided between the adjusting bolt 12 and the spring sheet 11 to separate the adjusting bolt 12 and the spring sheet 11. The gasket 14 is placed between the adjusting bolt 12 and the spring sheet 11. When the adjusting bolt 12 rotates to press the spring sheet 11 inward, the gasket 14 contacts the rotating adjusting bolt 12 to avoid the problem that the rotating adjusting bolt 12 generates friction on the outer side surface of the spring sheet 11 and reduces the service life of the spring sheet 11.

[0030] A straight groove 7 is provided at the end of the adjusting bolt 12 , and the bolt is rotated in the adjusting groove 10 by cooperating with a tool through the straight groove 7 , so that the position of the bolt in the adjusting groove 10 is moved.

[0031] The universal shaft used to cooperate with the rotation of the desk lamp has an inner quilt 6 for supporting the ball head 8 on the ball head shaft 3 arranged in the ball head seat 2. The inner quilt 6 cooperates with the annular limiting edge 9 on the inner side of the ball head seat 2 to limit the ball head 8 in the ball head seat 2, and cooperates with the ball head 8 on the ball head seat 2 to tilt 0-25 degrees and rotate 360 ​​degrees according to the needs of the desk lamp.

[0032] In the adjustment groove 10 connected to the connection base 1 and the ball head groove 5, a spring piece 11 is arranged to be pressed against the inner quilt 6 by the adjustment bolt 12. The arc surface inside the spring piece 11 contacts the bottom surface of the inner quilt 6. When it is necessary to adjust the support strength of the ball head shaft 3 to cooperate with the support member supporting the desk lamp, the user rotates the adjustment bolt 12 to make the adjustment bolt 12 move in the positive direction of the spring piece 11. The spring piece 11 moves against the inner quilt 6 toward the annular limiting edge 9, thereby increasing the pressure of the ball head member 8 in the ball head groove 5, thereby achieving the adjustment. The ball head shaft 3 cooperates with the support to increase the bearing capacity of the desk lamp, or the adjusting bolt 12 is reversed, the pressure of the adjusting bolt 12 on the spring piece 11 pressed against the ball head piece 8 is weakened, thereby reducing the pressure of the ball head piece 8 in the ball head groove 5, thereby achieving the purpose of weakening the supporting force of the desk lamp by the ball head shaft 3 cooperating with the support. By adjusting the bolt 12 and the spring piece 11 pressed against the inner support 6, the ball head shaft 3 can be adjusted at will within the maximum torque of 25KGF-CM, thereby improving the stability of the desk lamp support.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A universal shaft for rotating with a desk lamp, comprising a connecting base (1), a ball head seat (2) arranged on the connecting base (1), and a ball head shaft (3) connected with a desk lamp support, characterized in that: An inner quilt (6) is arranged in the ball head groove (5) on the ball head seat (2), and an arc receiving groove (4) coaxial with the inner quilt (6) is arranged on the outer side surface of the inner quilt (6); a ball head member (8) at the front end of the ball head shaft (3) is arranged in the arc receiving groove (4), and an annular limiting edge (9) is arranged at the top end of the ball head seat (2) for limiting the ball head member (8) in the ball head groove (5); The bottom of the connecting base (1) is provided with an adjustment groove (10) which is connected to the ball head groove (5) and coaxial with the ball head groove (5), and the adjustment groove (10) has an adjustment bolt (12) spirally disposed inside the adjustment groove (10) for pressing the inner quilt (6) against the ball head member (8) via a spring sheet (11).

2. The universal shaft for rotating with a desk lamp according to claim 1, characterized in that: The inner side surface of the annular limiting edge (9) is arranged in an arc shape corresponding to the outer arc surface of the ball head component (8).

3. The universal shaft for rotating with a desk lamp according to claim 1, characterized in that: Four positioning holes (13) are evenly distributed on the outer edge of the front side of the connection base (1).

4. The universal shaft for rotating with a desk lamp according to claim 1, characterized in that: A gasket (14) is provided between the adjusting bolt (12) and the spring sheet (11) to separate the adjusting bolt (12) from the spring sheet (11).

5. The universal shaft for rotating with a desk lamp according to claim 1, characterized in that: The end of the adjusting bolt (12) is provided with a slot (7).

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