Desk lamp joint mechanism
A joint and table lamp technology, applied in lighting devices, lighting device parts, lighting auxiliary devices, etc., can solve the problems of short life, failure, easy loosening, etc., and achieve convenient operation, long life and good anti-gravity effect. Effect
Inactive Publication Date: 2013-10-16
ZHONGSHAN FLASHLIGHT POLYTECHNIC +2
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- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] At present, the commonly used desk lamp joint mechanism is hinged by a pin shaft, which has the characteristics of convenient operation and simple manufacture. Failure due to the action of the rotary joint, weak anti-gravity effect, fatigue, and short life
Method used
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Embodiment Construction
[0022] A desk lamp joint mechanism, which includes a lower arm 1 and an upper cantilever 2,
[0023] The upper end of the lower arm 1 is provided with a left pivot seat 11 and a right pivot seat 12, and the left pivot seat 11 and the right pivot seat 12 are provided with a pivot hole 13 and a pivot hole 14. An elastic catch 15 is fixed in the seat fixing hole 14, and a connection space 16 is provided between the left pivot seat 11 and the right pivot seat 12,
[0024] The lower end of the upper cantilever 2 is provided with a connection seat 21 that can be inserted into the connection space 16. The connection seat 21 is provided with an annular groove ring 22. The connection seat 21 is fixed with a wheel 23, and the wheel 23 is provided with a There is a ratchet 24 and a ratchet plate spring 25 which can cooperate with the annular groove ring 22 to form a latch. The left and right outer ends of the wheel 23 are provided with a plurality of latches 26 which cooperate with the e...
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The invention discloses a desk lamp joint mechanism which comprises a lower arm and an upper suspension arm. The upper end of the lower arm is provided with a left pin joint seat and a right pin joint seat. The left pin joint seat and the right pin joint seat are both provided with pin joint seat shaft holes and pin joint seat fixing holes. Elastic clamping pieces are fixed in the pin joint seat fixing holes, and a connection space is arranged between the left pin joint seat and the right pin joint seat. The lower end of the upper suspension arm is provided with a connecting seat which can be inserted into the connection space. An annular clamping groove ring is arranged in the connecting seat on which a wheel disc is fixed. A ratchet and a ratchet plate spring which can both be matched with the annular clamping groove ring to perform a clamping action are arranged in the wheel disc. The left and the right external end surfaces of the wheel disc are provided with a plurality of clamping grooves which can be matched with the elastic clamping pieces. A shaft hole is arranged in the middle of the wheel disc, and a rotating shaft is inserted in the shaft hole of the wheel disc. The external end of the rotating shaft is connected with the shaft hole of the pin joint seat of the lower arm by a bearing. The invention can be adjusted according to different loads, and has the advantages of long service life, high safety and reliability, convenience for operation and better antigravity effect.
Description
【Technical field】 [0001] The invention relates to a desk lamp joint mechanism. 【Background technique】 [0002] At present, the commonly used desk lamp joint mechanism is hinged by a pin shaft, which has the characteristics of convenient operation and simple manufacture. However, if the arm span of the desk lamp is too long or the desk lamp cover is too heavy, its position is easy to loose and cannot be fixed. The effect leads to failure, the anti-gravity effect of the rotary joint is weak, fatigue, and the service life is short. 【Content of invention】 [0003] The object of the present invention is to overcome the disadvantages of the prior art, and provide a novel desk lamp joint mechanism with reliable positioning and better anti-gravity effect. [0004] The purpose of the present invention is achieved like this: [0005] A desk lamp joint mechanism, which includes a lower arm and an upper cantilever, [0006] The upper end of the lower arm is provided with a left piv...
Claims
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IPC IPC(8): F21V21/10
Inventor 张尚先程国飞
Owner ZHONGSHAN FLASHLIGHT POLYTECHNIC