CN211391099U

CN211391099U - Light modulation mechanism

Info

Publication number: CN211391099U
Application number: CN201921591776.XU
Authority: CN
Inventors: 周飞; 何亮
Original assignee: Changzhou Huisite Electronic Technology Co ltd
Current assignee: Changzhou Huisite Electronic Technology Co ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-09-01
Anticipated expiration: 2029-09-24

Abstract

The utility model belongs to the technical field of the car lamps and lanterns technique and specifically relates to a dimming mechanism, including casing, the bulb ejector pin of setting in the casing and cup joint at the outside sleeve pipe of bulb ejector pin, wherein, the bulb ejector pin is the metal material, is equipped with wear-resisting arch on the casing, the utility model discloses can solve the easy cracked problem of bulb ejector pin and the easy problem of wearing and tearing of casing among the prior art.

Description

Light modulation mechanism

Technical Field

The utility model relates to an automobile lamp technical field, concrete field is a dimming mechanism.

Background

The dimming mechanism of the automobile headlamp is generally positioned in the automobile headlamp, and the horizontal position of light is adjusted by adjusting the reflector of the headlamp through the dimming mechanism, so that the irradiation angle of the light of the automobile headlamp is changed, and the requirement on the light during driving at night is met.

The ball ejector rod in the existing dimming mechanism is made of plastic materials, is easy to break when in vibration test and cannot meet the requirements of customers; in addition, in the prior art, an effective limiting structure is not arranged between the ball head ejector rod and the sleeve, the ball head ejector rod is easy to loosen and disengage, the unstable structure can lead to the abnormal work of the dimming mechanism, and potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dimming mechanism to solve the easy cracked problem of bulb ejector pin among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: a dimming mechanism comprises a shell, a ball head ejector rod arranged in the shell and a sleeve sleeved outside the ball head ejector rod, wherein the ball head ejector rod is made of metal.

Preferably, the bulb ejector pin includes the body of rod, sets up at the bulb of body of rod one end, sets up at the spacing boss of the body of rod other end and sets up the annular spacing arch on the body of rod, lamella form is cut apart into to sheathed tube one end, and the body of rod has the one end of spacing boss and struts sheathed tube lamella form region and passes the sleeve pipe, and the sheathed tube both ends are spacing through spacing boss and annular spacing arch respectively.

Preferably, be equipped with toper direction changeover portion between the body of rod and the spacing boss, toper direction changeover portion includes toper direction section and changeover portion, the big mouth end and the body of rod of toper direction section are connected, the little mouth end and the one end of changeover portion of toper direction section are connected, the other end and the spacing boss of changeover portion are connected.

Preferably, the outer side of the ball head ejector rod is provided with an external thread, and the external thread is matched with an internal thread in the sleeve.

Preferably, the shell comprises an upper cover and a lower cover, the lower cover is provided with a through hole, the ball head ejector rod and the sleeve extend out of the through hole, the through hole is provided with an annular wear-resistant bulge, and the wear-resistant bulge faces the outer side of the shell.

Compared with the prior art, the beneficial effects of the utility model are that: in the application, the ball head ejector rod is made of metal, so that the strength is greatly enhanced, the ball head ejector rod is not easy to break in a vibration test, the service life is long, and the requirements of customers are met; the ball head ejector rod is provided with the limiting device, so that the ball head ejector rod cannot be loosened and separated during dimming, and potential safety hazards are eliminated; the wear-resistant boss is arranged outwards at the through hole of the lower cover, so that the shell is not easy to wear, and the service life is prolonged.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the connection between the ball-end ejector pin and the sleeve of the present invention;

fig. 3 is an exploded view of the middle ball ejector pin and the sleeve of the present invention.

In the figure: 1 ball ejector rod, 11 rods, 12 limit bosses, 13 annular limit bulges, 14 conical guide sections, 15 transition sections, 2 sleeves, 3 lower covers and 31 wear-resistant bosses.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a dimming mechanism, which comprises a housin, ball ejector pin 1 of setting in the casing and cup joint at 1 outside sleeve pipe 2 of ball ejector pin, wherein, 1 outside of ball ejector pin is provided with the external screw thread, the internal thread of external screw thread and sleeve pipe 2 interior cooperatees, ball ejector pin 1 is the metal material, current ball ejector pin 1 is the plastics material, ball ejector pin 1 easy fracture of plastics material, along with the improvement of customer's requirement, ball ejector pin 1 of plastics material can not pass through the vibration test already, in this application, ball ejector pin 1's material is the metal, the intensity of ball ejector pin 1 has been strengthened, prevent its fracture, the requirement of vibration test has been satisfied, the service life of ball ejector pin 1 has been prolonged greatly.

Concretely, ball ejector pin 1 includes the body of rod 11, the setting is at the bulb of body of rod 11 one end, the spacing boss 12 of the setting at the body of rod 11 other end and the annular spacing arch 13 of setting on the body of rod 11, lamella form is cut apart into to sleeve pipe 2's one end, during the installation, the one end that has spacing boss 12 on the body of rod 11 stretches into in the sleeve pipe 2, it is regional to strut the lamella form of sleeve pipe 2, spacing boss 12 passes sleeve pipe 2, spacing boss 12 is regional spacing cooperation with the lamella form of sleeve pipe 2, and simultaneously, sleeve pipe 2's the other end is spacing by annular spacing arch 13, stop device who comprises spacing boss 12 and annular spacing arch 13 can prevent that ball ejector pin 1 is not hard up to deviate from, the potential safety.

Preferably, be equipped with toper direction changeover portion between body of rod 11 and spacing boss 12, toper direction changeover portion includes toper direction section 14 and changeover portion 15, the macrostoma end and the body of rod 11 of toper direction section 14 are connected, the osculum end and the one end of changeover portion 15 of toper direction section 14 are connected, the other end and the spacing boss 12 of changeover portion 15 are connected, setting up of toper direction changeover portion can prevent that the lamella form region of sleeve pipe 2 from being strutted, prevent that ball ejector pin 1 from droing.

Further, the casing includes upper cover and lower cover 3, and lower cover 3 is provided with the through-hole, and bulb ejector pin 1 and sleeve pipe 2 stretch out this through-hole, are equipped with annular wear-resisting boss 31 on the through-hole, and wear-resisting boss 31 is towards the casing outside, and wear-resisting boss 31's setting can prevent casing wearing and tearing, has prolonged the life of casing.

In the application, the ball head ejector rod 1 is made of metal, so that the strength is greatly enhanced, the ball head ejector rod is not easy to break in a vibration test, the service life is long, and the requirements of customers are met; the ball head ejector rod 1 is provided with the limiting device, so that the ball head ejector rod 1 cannot be loosened and separated during dimming, and potential safety hazards are eliminated; the wear-resistant boss 31 is arranged outwards at the through hole of the lower cover 3, so that the shell is not easy to wear, and the service life is prolonged.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a dimming mechanism, includes casing, ball ejector pin (1) of setting in the casing and cup joints at outside sleeve pipe (2) of ball ejector pin (1), its characterized in that: the ball head ejector rod (1) is made of metal; bulb ejector pin (1) is including the body of rod (11), set up at the bulb of body of rod (11) one end, set up at spacing boss (12) of the body of rod (11) other end and set up cyclic annular spacing arch (13) on the body of rod (11), the lamella form is cut apart into to the one end of sleeve pipe (2), and the one end that body of rod (11) has spacing boss (12) struts the lamella form region of sleeve pipe (2) and passes sleeve pipe (2), and the both ends of sleeve pipe (2) are spacing through spacing boss (12) and cyclic annular spacing arch (13) respectively.

2. A dimming mechanism as claimed in claim 1, wherein: be equipped with toper direction changeover portion between the body of rod (11) and spacing boss (12), toper direction changeover portion includes toper direction section (14) and changeover portion (15), the big mouth end of toper direction section (14) is connected with the body of rod (11), the little mouth end of toper direction section (14) is connected with the one end of changeover portion (15), the other end and the spacing boss (12) of changeover portion (15) are connected.

3. A dimming mechanism as claimed in claim 2, wherein: and the outer side of the ball head ejector rod (1) is provided with an external thread, and the external thread is matched with an internal thread in the sleeve (2).

4. A dimming mechanism as claimed in claim 1, wherein: the shell comprises an upper cover and a lower cover (3), the lower cover (3) is provided with a through hole, the ball head ejector rod (1) and the sleeve (2) extend out of the through hole, the through hole is provided with an annular wear-resistant boss (31), and the wear-resistant boss (31) faces the outer side of the shell.