CN201259173Y - Connecting device for table lamp capable of rotating in multidirection and adjusting degree of tightness - Google Patents

Abstract

The utility model relates to a rotatable and elasticity-adjustable connecting device for reading lamp, comprising a lamp stand (8) and a rocker arm (4). The lamp stand (8) is hollow, the center of the panel of which is vertically provided with an opening (7); the inner cavity of the lamp stand (8) is provided with an adjusting tube (2) which is positioned just below the opening (7); a ball (1) is positioned in the adjusting tube (2), the top of the ball (1) is positioned in the opening (7); an adjusting screw (3) is screwed inside the adjusting tube (2), which is positioned underneath the ball (1); a friction block (5) and a spring (9) are orderly embedded between the ball (1) and the adjusting screw (3) in the adjusting tube (2) from top to bottom; one surface of the friction block (5) contacting with the ball (1) is shaped into an inward-concaved spherical surface; the adjusting screw (3) is contacted with the spring (9); the spring (9) dragoons the friction block (5); and the rocker arm (4) is upward connected with the top of the ball (1). The device is designed to make the rocker arm be capable of multidirectional free rotation in a certain space, and the elasticity of the rotatable part can be adjusted, and has advantages of small volume and steady structure.

Description

The adjustable desk lamp jockey of multi-direction rotation and degree of tightness

Technical field

The utility model relates to a kind of desk lamp, especially relates to the adjustable desk lamp jockey of a kind of multi-direction rotation and degree of tightness.Belong to the illumination electronic technology field.

Background technology

At present, known desk lamp is to adopt fixedly connected or axially be spirally connected with jockey mostly.The purposes of desk lamp has determined it to carry out each to adjusting according to user's hobby, to regulate the direction of illumination of light.Adopt fixing normally metal hose in succession at present, it utilizes the optionally rotated function of flexible pipe to reach the effect of regulating direction.But flexible pipe can't be regulated the degree of tightness dynamics of rotation, and attractive in appearance inadequately, often need put ornamental plastics coiled pipe outside.Another kind of connected mode is axially to be spirally connected, and connects with a screw between desk lamp parts (as arm) that need rotate and the lamp socket, and desk lamp parts (as arm) can rotate around this axle of screw, but this rotation is can only be in the rotation in the plane; Rotate if be implemented in more spaces, just need with two groups or many groups axially the mode of being spirally connected make up, make the structure of connection become complicated, and the volume of increase attaching parts.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of and can carry out multidirectional rotation, and rotate that degree of tightness partly can be adjusted, simple in structure, multi-direction rotation and the adjustable desk lamp jockey of degree of tightness that volume is small and exquisite.

The purpose of this utility model is achieved in that a kind of multi-direction rotation and the adjustable desk lamp jockey of degree of tightness, comprise base and rocking arm, described base is hollow structure, the face plate center of described base vertically offers opening, be provided with one in the cavity of described base and regulate tube, described adjusting tube vertically is arranged under the described opening, regulate in the tube and be placed with spheroid, the spheroid top places in the described opening, the described diameter of regulating the tube internal diameter greater than spheroid, described opening diameter is less than the diameter of spheroid, regulate in the tube and be screwed with set screw, set screw places the spheroid below, be equipped with brake pad and spring from top to bottom successively between described adjusting tube interior spheroid and the set screw, the one side that described friction block contacts with spheroid is made the sphere of indent, and set screw contacts with spring, spring suppresses friction block, and described rocking arm upwards is connected in the spheroid top.

This jockey can not only make the rocking arm that is connected with lamp socket with lampshade can carry out multidirectionally freely rotating in certain space, and rotates degree of tightness partly and can adjust, and volume is small and exquisite, structure is firm.

The utility model has the advantages that: volume is small and exquisite, simple in structure, turn screw just can change the suffered pressure size of spheroid, thereby changes the size of its suffered friction, reaches the dynamics that need apply when changing rotatable parts, and has realized multi-direction adjusting.

Description of drawings

Fig. 1 is the vertical view of the adjustable desk lamp of multi-direction rotation of the utility model and degree of tightness with jockey.

Fig. 2 is the A-A cut-away view of Fig. 1.

Among the figure: spheroid 1, adjusting tube 2, set screw 3, Rocker arm 4, brake pad 5, internal thread 6, opening 7, base 8, spring 9.

The specific embodiment

Referring to Fig. 1～2, the adjustable desk lamp jockey of multi-direction rotation that the utility model relates to and degree of tightness, comprise base 8 and Rocker arm 4, described base 8 is hollow structure, the face plate center of described base 8 vertically offers opening 7, is provided with one in the cavity of base 8 and regulates tube 2, regulates tube 2 and vertically is arranged under the described opening 7, regulate in the tube 2 and be placed with spheroid 1, spheroid 1 top places in the described opening 7.Regulate tube 2 bottoms and be provided with internal thread 6, regulate in the tube 2 and be screwed with set screw 3, set screw 3 places spheroid 1 below, regulate between tube 2 interior spheroids 1 and the set screw 3 and be equipped with brake pad 5 and spring 9 from top to bottom successively, set screw 3 contacts with spring 9, and spring 9 suppresses friction block 5, make friction block 5 push down spheroid 1, spheroid 1 is limit by base 8 face plate center openings 7 slightly little diameters, is compressed in to regulate in the tube 2, and spheroid 1 exposes the place of regulating tube 2 and links to each other with Rocker arm 4.

Usually regulating the diameter of the size of tube 2 internal diameters and spheroid 1 should be quite and be a bit larger tham the diameter of spheroid, spheroid can be put into regulate tube 2 and limit by barrel, face plate center opening 7 diameters of base 8 should be slightly less than the diameter of spheroid 1, and ball can not be deviate from this opening 7.The position that Rocker arm 4 is connected with spheroid 1 should be as far as possible little, to increase the rotational angle of spheroid.

Described rocking arm cross section can be circular or other shape, its with can adopt that (but being not limited to) welded, is spirally connected, riveted joint, bonding being connected of spheroid.

The one side that described friction block contacts with spheroid is made the sphere of indent, increasing the contact-making surface with spheroid, reducing wearing and tearing, and increases friction.

Claims (1)

1, the adjustable desk lamp jockey of a kind of multi-direction rotation and degree of tightness, comprise base (8) and rocking arm (4), described base (8) is hollow structure, the face plate center of described base (8) vertically offers opening (7), it is characterized in that: be provided with one in the cavity of described base (8) and regulate tube (2), described adjusting tube (2) vertically is arranged under the described opening (7), regulate in the tube (2) and be placed with spheroid (1), spheroid (1) top places in the described opening (7), the described diameter of regulating tube (2) internal diameter greater than spheroid (1), described opening (7) diameter is less than the diameter of spheroid (1), regulate in the tube (2) and be screwed with set screw (3), set screw (3) places spheroid (1) below, be equipped with brake pad (5) and spring (9) from top to bottom successively between described adjusting tube (2) interior spheroid (1) and the set screw (3), the one side that described friction block (5) contacts with spheroid (1) is made the sphere of indent, set screw (3) contacts with spring (9), spring (9) suppresses friction block (5), and described rocking arm (4) upwards is connected in spheroid (1) top.

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