Patent ID: 12235073

LIST OF REFERENCE NUMBERS

1Left Adjustment Screw2Stop Block3Right Adjustment Screw4Transverse Sliding Groove5Sliding Block6LED Chip Module Mounting Seat7Transverse Mounting Block8Wedge-shaped Block9Limiting Pin10Spiral Reset Spring11Right Stopping Plate12Spring Mounting Hole13Vertical Spiral Spring14First Spring Ejector Pin15Second Spring Ejector Pin16Inclined Surface17Mounting Groove18Base19Mounting Cavity20L-shaped Fixing Seat21Seat Portion22Connecting Lug23Vertical Stopping Plate24Third Spring Ejector Pin25Tubular Stopping Cap26Steel Ball27Spiral Spring28Protective Glass29Window Frame Element30Connecting Hole Element31Vertical Portion32Connecting Rotating Shaft33Torsion Spring34Straight Portion35Screw Hole36Buckle37Screw

DETAILED DESCRIPTION

In order to ensure adjustment stability of a LED light source, reduce the number of adjustment mechanisms, simplify the product design structure, reduce the cost, and facilitate for users to use, this embodiment provides an adjustment mechanism as shown inFIGS.1and2. The adjustment mechanism includes a left adjustment screw1, a stop block2threadedly connected with the left adjustment screw1, and a right adjustment screw3. The adjustment mechanism further includes a sliding block5provided with a transverse sliding groove4at a side surface of a front end thereof, a transverse mounting block7having an LED chip module mounting seat6mounted at a top portion of a rear end thereof, and a wedge-shaped block8. A right end portion of the transverse mounting block7is provided with a limiting pin9and a spiral reset spring10sleeved on the limiting pin9. The transverse mounting block7is assembled in the transverse sliding groove4, and the spiral reset spring10is placed between the limiting pin9and a right stopping plate11of the transverse sliding groove4(i.e., a stopping plate at a right end of the transverse sliding block). A left end of the transverse mounting block7extends out of the transverse sliding groove4and abuts against the stop block2. A bottom surface of the sliding block5is provided with an inclined surface portion16which may slide relatively parallel to an inclined surface of the wedge-shaped block8as shown inFIG.3, so that the transverse sliding block may move upward or downward when the wedge-shaped block8moves leftward and rightward, in this way, a LED chip module mounting seat6placed on a top surface of the sliding block5moves rightward and upward, or moves leftward and downward (based on a direction as shown inFIG.2, that is, “leftward” refers to a direction towards a left hand side inFIG.2from an observer, and “upward” refers to a direction towards the top inFIG.2), so that the LED chip can be adjusted rightward and upward or leftward and downward slightly, and the fine adjustment of the pitch angle and left-and-right angle of the emission light of the LED chip can be completed synchronously.

The right adjustment screw3is threadedly connected with a vertical side surface of the wedge-shaped block8to push and pull the wedge-shaped block8. That is, the right adjustment screw3is generally fixedly mounted on a housing of the inner red dot sight, and when the right adjustment screw3rotates clockwise and counterclockwise, the wedge-shaped block8may be pushed or pulled leftward or rightward. This is a basic principle of turbo-worm.

In order to realize the fine synchronous adjustment of the pitch angle and the left-and-right angle of the emission light of the LED chip (LED lamp), in this embodiment, a mounting groove17for mounting the LED chip module mounting seat6as shown inFIGS.2and3is arranged at the top portion of the sliding block5, and two spring mounting holes12which are uniformly arranged are provided on a top surface of the sliding block5on each of two sides of the mounting groove17, and each of the spring mounting holes12is configured to assemble a vertical spiral spring13which may be reset upward and downward. It can be seen fromFIG.2that an extending surface of the mounting groove17at its front end is communicated with the transverse sliding groove4, so that the LED chip module mounting seat6can be mounted in the mounting groove17while the sliding block5is assembled in the transverse sliding groove4, so that the fine synchronous adjustment of the up-and-down (i.e., vertical) position and the left-and-right (i.e., horizontal) position of the LED lamp can be achieved only by the left adjustment screw1, the stop block2, the spiral reset spring10, the right adjustment screw3, the wedge-shaped block8and the vertical spiral spring13. Mainly due to the cooperation of the wedge-shaped block8and the inclined surface of the inclined surface portion16, the up-and-down position adjustment can be completed under the cooperation of the vertical spiral spring13as moving horizontally.

In order to eliminate an adjustment gap and ensure stability of the adjustment process, in this embodiment, a first spring ejector pin14placed below the LED chip module mounting seat6is arranged between a rear side surface of the transverse mounting block7and a side wall of the transverse sliding groove4, and a first steel ball of the first spring ejector pin14abuts against the rear side surface of the transverse mounting block7. At the same time, two second spring ejector pins15, which are uniformly distributed transversely, are provided between a bottom surface of the transverse mounting block7and a bottom surface of the transverse sliding groove4, and a second steel ball of the second spring ejector pin15abuts against the bottom surface of the transverse sliding groove4.

FIGS.5,6and7show an inner red dot sight with the aforementioned adjustment mechanism, which includes a base18. A rear end of the base18is provided with a mounting cavity19of the adjustment mechanism. A rear end of the mounting cavity19is provided with an L-shaped fixing seat20as shown inFIG.2, and a front end portion of the seat portion21of the L-shaped fixing seat20is provided with a connecting lug22to be threadedly connected with a bottom surface of the base18through screw(s). The adjustment mechanism is placed on the seat portion21. At least four third spring ejector pins24, which are uniformly arranged, are provided between a front side surface of a vertical stopping plate portion23of the L-shaped fixing seat20and a rear side surface of the sliding block5, and a third steel ball of the third spring ejector pin24abuts against the rear side surface of the sliding block5.

FIG.4shows a structural sectional view of the first spring ejector pin14, the second spring ejector pin15and the third spring ejector pin24, each of which consists of a tubular stopping cap25, a steel ball26having an outer diameter larger than an inner diameter of a port at one end of the tubular stopping cap25and placed inside the port, and a spiral spring27having one end abutting against the steel ball26and the other end extending out of the other end of the tubular stopping cap25. A part of the steel ball26may extend beyond the tubular stopping cap25.

As above described, in this present disclosure, the transverse mounting block7provided with a LED lamp is assembled in the sliding block5, and the LED chip module mounting seat6integrally connected with the top portion of the rear end of the transverse mounting block7is assembled in the mounting groove17at the top portion of the sliding block5, so that the synchronous fine adjustment of the up-and-down position and the left-and-right position of the LED lamp can be realized under the cooperation of the left adjustment screw1, the stop block2, the spiral reset spring10, the right adjustment screw3, the wedge-shaped block8and the vertical spiral spring13, and the first spring ejector pin14, the second spring ejector pin15and the third spring ejector pin24are provided to minimize or even eliminate the adjustment gap, ensure the stability of adjustment, and the structure becomes compact to reduce a volume of the inner red dot sight.

In order to opening the protective cover for protecting an eyepiece or an objective lens quickly, each of the eyepiece and the objective lens of the inner red dot sight provided by this embodiment is provided with a protective cover assembly as shown inFIGS.8and9. The protective cover assembly includes a window frame element29with a protective glass28, a lower end of the window frame element29is provided with two connecting hole elements30opposite to each other. The vertical portion31of a T-shaped connector is placed between the two connecting hole elements30, a perforation in the vertical portion31and a perforation in the connecting hole element30are coaxial with each other and have the same pore diameter, and a connecting rotating shaft32penetrates into the perforations on the connecting hole element30and the vertical portion31. A torsion spring33is provided on either end of the connecting rotating shaft32, and the window frame element29rotates to a direction away from the eyepiece or the objective lens relative to the vertical portion31, so that after a buckle36arranged at the top portion of the window frame element29is manually unlocked, the window frame element29in the protective cover assembly rotates together with the protective glass28downward outside the eyepiece and the objective lens, so that the eyepiece and the objective lens are exposed outside and may be used conveniently. A straight portion34of the T-shaped connector is provided with a screw hole35at a position thereof placed below the connecting hole element30, and is fixed on the housing of the inner red dot sight below the eyepiece and the objective lens by screws37, so as to support and connect with the window frame element29.