CN210372997U

CN210372997U - Desk lamp with rotating shaft controlled to rotate by hand brake

Info

Publication number: CN210372997U
Application number: CN201921480852.XU
Authority: CN
Inventors: 李伯英
Original assignee: Foshan Taizhao Optoelectronics Technology Co ltd
Current assignee: Foshan Taizhao Optoelectronics Technology Co ltd
Priority date: 2019-09-06
Filing date: 2019-09-06
Publication date: 2020-04-21
Anticipated expiration: 2029-09-06

Abstract

The utility model relates to the technical field of lamps and lanterns, aim at providing a stable in structure, control mode simple and convenient and rotatory fixed more stable desk lamp of being controlled the pivot rotation by the manual brake, the lamp pole is including two sections at least branches, and arbitrary two sections are adjacent pass through the pin joint of hinge shaft between the branch, and be equipped with a clamping device in every pin joint position, wherein, clamping device includes opposite direction clamping's first arm lock and second arm lock, the middle part position of first arm lock and second arm lock is articulated mutually, the front end of first arm lock and second arm lock is used for pressing from both sides tight articulated shaft in order to restrict two sections branches and make relative rotation around the articulated shaft; the clamping device is at least provided with an unlocking pull rope, and the front end of the unlocking pull rope extends along the inner cavity of any section of the supporting rod and penetrates out of the supporting rod; the front end of the unlocking pull rope is pulled, so that the first clamping arm and the second clamping arm loosen the hinge shaft.

Description

Desk lamp with rotating shaft controlled to rotate by hand brake

Technical Field

The utility model belongs to the technical field of the lamps and lanterns technique and specifically relates to indicate a rotatory desk lamp of by manual brake control pivot.

Background

The desk lamp is widely applied to daily life as a lighting device and is an important auxiliary device for students to study, the existing desk lamp is generally provided with a plurality of hinge mechanisms, the lighting angle of the desk lamp is adjusted through the rotation of the hinge mechanisms, but the desk lamp usually has the phenomenon that the hinge mechanisms are loosened after being used for a long time, so that the mechanism becomes unstable and the use is influenced; therefore, the hinged position of the existing desk lamp needs to be further improved.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model aims to provide a stable in structure, control mode simple and convenient and rotatory fixed more stable by the rotatory desk lamp of manual brake control pivot.

In order to realize foretell purpose, the utility model provides a by rotatory desk lamp of manual brake control pivot, including the lamp pole, the lamp pole is including two section at least branches, and arbitrary two sections are adjacent through the pivot shaft pin joint between the branch to be equipped with a clamping device in every pivot position, wherein, clamping device includes first arm lock and the second arm lock of subtend clamp, the middle part position of first arm lock and second arm lock is articulated mutually, the front end of first arm lock and second arm lock is used for pressing from both sides tight articulated shaft and does relative rotation around the articulated shaft with restriction two sections branches.

And the clamping device further comprises a tension spring, wherein two ends of the tension spring are respectively connected with the front end parts of the first clamping arm and the second clamping arm.

Furthermore, the clamping device is at least provided with one unlocking pull rope, wherein the tail end of each unlocking pull rope is divided into two parts and is respectively connected with the tail end of the first clamping arm and the tail end of the second clamping arm, and the front end of each unlocking pull rope extends along the inner cavity of any section of the support rod and penetrates out of the support rod; the front end of the unlocking pull rope is pulled, so that the first clamping arm and the second clamping arm loosen the hinge shaft.

Furthermore, the lamp post comprises three sections of supporting rods which are sequentially pivoted through a hinge shaft, and correspondingly, two clamping devices are respectively arranged at two pivoting positions and share one unlocking pull rope.

The utility model adopts the above technical scheme, its beneficial effect lies in: this desk lamp mainly increases a clamping device on every pin joint position, makes clamping device loosen the articulated shaft through pulling unblock stay cord to adjust the illumination angle of desk lamp in a flexible way, and make rotary mechanism's the stop state under more stable, the wearability between clamping device and the articulated shaft makes the rotary mechanism of desk lamp still can normally work after long-term the use.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is an enlarged schematic view of a portion H in fig. 2.

Fig. 4 is an enlarged structural diagram of a part L in fig. 2.

The LED lamp comprises a base 1, a clamping device 11, a lamp post 2, a support rod 21, a first support rod 211, a second support rod 212, a third support rod 213, a lampshade 3, an LED illuminating light source 31, a hinged shaft 4, a clamping device 5, a first clamping arm 51, a second clamping arm 52, a tension spring 53, an unlocking pull rope 6, a branch rope 61, a hinged part 7, a first hinged part 10a, a first hinged block 10b, a second hinged part 11a and a second hinged block 11 b.

Detailed Description

To facilitate an understanding of the invention, the invention is described more fully below with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete.

Referring to fig. 1 to 4, the table lamp with a hand brake for controlling rotation of a rotating shaft includes a base 1, a lamp post 2 and a lamp housing 3, in this embodiment, the lamp post 2 includes a first support 211, a second support 212 and a third support 213, which are pivotally engaged with each other through a hinge shaft 4.

Specifically, a first hinge portion 10a is formed at the lower end of the first supporting rod 211, a first hinge block 10b which is in hinge fit with the first hinge portion 10a is formed at the upper end of the second supporting rod 212, a second hinge portion 11a is formed at the lower end of the second supporting rod 212, and a second hinge block 11b which is in hinge fit with the second hinge portion 11a is formed at the upper end of the third supporting rod 213, wherein the first hinge block 10b and the second hinge block 11b in the present embodiment are two hinge lugs which are symmetrically arranged, the hinge lugs are provided with a pair of hinge holes with the same axis and diameter, the second hinge portion 11a or the first hinge portion 10a is embedded into the two hinge lugs (the second hinge portion 11a or the first hinge portion 10a is formed with hinge holes), and the hinge shafts 4 are pre-arranged to penetrate through the hinge holes to realize that the upper and lower ends of the second supporting rod 212 are respectively in rotation fit with the first supporting rod 211 and the third supporting rod 213, in this embodiment, the hinge shaft 4 is substantially a bolt, and the bolt is locked on the two hinge lugs by matching with the corresponding nut, so that the hinge shaft 4 and the two hinge lugs cannot rotate relatively (the hinge shaft 4 and the second hinge portion 11a or the first hinge portion 10a can rotate relatively), that is, the first support rod 211, the second support rod 212, and the third support rod 213 have rotation adjusting functions.

In this embodiment, each pivoting position is provided with a clamping device 5, each clamping device 5 includes a first clamping arm 51, a second clamping arm 51 and a tension spring 53, wherein the first clamping arm is folded and formed into a "sickle shape" and is hinged to the middle position of the second clamping arm 52, the front ends of the first clamping arm 51 and the second clamping arm 52 are respectively connected to two ends of the tension spring 53, so that the first clamping arm 51 and the second clamping arm 52 can be clamped in an opposite direction; specifically, in the present embodiment, the hinge 7 is respectively disposed on the first hinge portion 10a and the second hinge portion 11a, the middle positions of the first clip arm 51 and the second clip arm 52 are hinged by the hinge 7, and can be rotatably clamped around the hinge 7 under the tensile force of the tension spring 53, so that the front end portion of the first clip arm 51 and the front end portion of the second clip arm 52 clamp the hinge shaft 4 together, thereby limiting the relative rotation of the two sections of struts 21 around the hinge shaft 4, that is, the hinge shaft 4 after being clamped cannot rotate relative to the second hinge portion 11a or the first hinge portion 10 a.

In addition, all the clamping devices 5 should be provided with at least one unlocking pull rope 6, and the first clamping arm 51 and the second clamping arm 52 can release the hinge shaft 4 by pulling the unlocking pull rope 6; in this embodiment, the first support rod 211, the second support rod 212, and the third support rod 213 are sequentially pivoted through the hinge shaft 4, and correspondingly, a clamping device 5 is respectively disposed at two pivoting positions, in this embodiment, the two clamping devices 5 share one unlocking rope 6, specifically, the tail end of the unlocking rope 6 is divided into two branch ropes 61, one branch rope 61 is sequentially connected to the tail end of the first clamping arm 51 of the clamping device 5 disposed on the first hinge portion 10a and the second hinge portion 11a, and the other branch rope 61 is sequentially connected to the tail end of the second clamping arm 52 of the clamping device 5 disposed on the first hinge portion 10a and the second hinge portion 11 a; the front end of the unlocking pulling rope 6 extends along the inner cavity of the first supporting rod 211 and penetrates out of the supporting rods 21, and the rotation between two adjacent supporting rods 21 can be controlled by pulling the front end of the unlocking pulling rope 6.

When the pulling force of the two branch ropes 61 is greater than the pulling force of the tension spring 53, the first clamping arm 51 and the second clamping arm 52 rotate around the hinge 7 to open and close, so as to loosen the hinge shaft 4, and at this time, the angle formed between two adjacent struts 21 can be adjusted (i.e. the hinge shaft 4 and the second hinge part 11a or the first hinge part 10a can rotate relatively); when the front end of the unlocking cord 6 is released, the first clip arm 51 and the second clip arm 52 are rotatably clipped around the hinge 7 by the tension of the tension spring 53, and at this time, the rotation between the two adjacent struts 21 is limited (i.e., the relative rotation between the hinge shaft 4 and the second hinge portion 11a or the first hinge portion 10a is limited).

In this embodiment, the lower end of the third pull rod 213 is connected and fixed with the top surface of the base 1, wherein the base is provided with a clamping device 11 for clamping and fixing the desk lamp under special conditions, the upper end of the first pull rod 211 is connected with the lampshade 3, and the lampshade 3 is provided with the LED lighting source 31 therein.

The above-described embodiments are merely preferred embodiments of the present invention, which are not intended to limit the present invention in any way. Those skilled in the art can make many changes, modifications, and equivalents of the embodiments of the invention without departing from the scope of the invention. Therefore, the content of the technical scheme of the utility model, according to the equivalent change made by the idea of the utility model, should be covered in the protection scope of the utility model.

Claims

1. The utility model provides a desk lamp by manual brake control pivot is rotatory, includes lamp pole (2), its characterized in that: lamp pole (2) are adjacent including two section at least branch (21), arbitrary two sections through articulated shaft (4) looks pin joint between branch (21) to be equipped with a clamping device (5) in every pin joint position, wherein, clamping device (5) are including first arm lock (51) and second arm lock (52) of subtend clamping, the middle part position of first arm lock (51) and second arm lock (52) is articulated mutually, the front end of first arm lock (51) and second arm lock (52) is used for pressing from both sides tight articulated shaft (4) and makes relative rotation around articulated shaft (4) with restriction two sections branch (21).

2. The desk lamp of claim 1, wherein the rotation of the spindle is controlled by the hand brake, and the desk lamp further comprises: the clamping device is characterized by further comprising a tension spring (53), wherein two ends of the tension spring (53) are respectively connected with the front end parts of the first clamping arm (51) and the second clamping arm (52).

3. The desk lamp of claim 2, wherein the rotation of the spindle is controlled by the hand brake, and the desk lamp further comprises: the clamping device (5) is at least provided with one unlocking pull rope (6), wherein the tail end of each unlocking pull rope (6) is divided into two parts and is respectively connected with the tail end of a first clamping arm (51) and the tail end of a second clamping arm (52), and the front end of each unlocking pull rope (6) extends along the inner cavity of any section of support rod (21) and penetrates out of the support rod; the front end of the unlocking pull rope (6) is pulled to enable the first clamping arm (51) and the second clamping arm (52) to release the hinged shaft.

4. The desk lamp of claim 3, wherein the rotation of the spindle is controlled by the hand brake, and the desk lamp further comprises: the lamp pole (2) comprises three sections of supporting rods (21), the three sections of supporting rods (21) are sequentially pivoted through a hinge shaft (4), and correspondingly, two clamping devices (5) are respectively arranged at two pivoting positions and share one unlocking pull rope (6).