A kind of microscope suspension arm
Technical field:
The present invention relates to a kind of microscope suspension arm.
Background technology:
Existing microscope suspension arm is complicated, is not easy to adjust microscopical angle, in-convenience in use.
Therefore, it is necessory to be improved to prior art to solve the deficiency of prior art.
The content of the invention:
The present invention is to provide a kind of microscope suspension arm to solve the above-mentioned problems of the prior art.
The technical solution adopted in the present invention has:A kind of microscope suspension arm, including connecting seat, hanger bracket, link bolt,
Extension spring, first connecting rod, second connecting rod, clamping screw and transmission mechanism, the transmission mechanism are fixedly connected on connecting seat, are hanged
Hanger is hinged on transmission mechanism by link bolt, and the lower end of first connecting rod is hinged on transmission mechanism, and upper end passes through locking
The lower end of bolt and second connecting rod is hinged, and the upper end of second connecting rod is hinged on hanger bracket, and extension spring is in the hanger bracket and one
End is fixedly connected with link bolt, and the other end is fixedly connected with hanger bracket;
The transmission mechanism include the first installing plate, the first electric pushrod, the first slide rail, the first sliding block, the second installing plate,
Second electric pushrod, the second slide rail, the second sliding block and connecting plate, first installing plate are fixedly connected on connecting seat, the
One slide rail is fixedly connected on the first installing plate, and the second installing plate is slidably connected on the first slide rail by the first sliding block, and first
Electric pushrod is fixedly connected on the first installing plate, and output shaft is connected with the second installing plate;Second slide rail is fixedly connected on
On two installing plates, and the second slide rail and the first slide rail are perpendicular, and connecting plate is slidably connected on the second slide rail by the second sliding block,
Second electric pushrod is fixedly connected on the second installing plate, and output shaft is connected with connecting plate, and hanger bracket and first connecting rod are equal
It is articulated with connecting plate.
Further, the inwall of the hanger bracket is provided with connecting pin, and one end of extension spring is fixed on the connecting pin.
Further, the connecting plate is provided with connection boss, and hanger bracket is articulated with the connection boss.
The present invention has the advantages that:
The present invention is simple in construction, easy to use, and extension spring is provided with hanger bracket, between regulation hanger bracket and connecting seat
During angle, cushioning effect is played in extension spring, after avoiding clamping screw from unclamping, hanger bracket free-falling due to self gravitation,
Prevent the damage of hanger bracket.
Brief description of the drawings:
Fig. 1 is the structure chart of suspension arm of the present invention.
Fig. 2 is the structure chart of transmission mechanism in suspension arm of the present invention.
Embodiment:
The present invention is further illustrated below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of microscope suspension arm of the present invention, connecting seat 3, hanger bracket 4, link bolt 6, extension spring 7, first
Connecting rod 81, second connecting rod 82, clamping screw 9 and transmission mechanism 11, transmission mechanism 11 are fixedly connected on connecting seat 3, suspension
Frame 4 is hinged on transmission mechanism 11 by link bolt 6, and the lower end of first connecting rod 81 is hinged on transmission mechanism 11, and upper end leads to
The lower end for crossing clamping screw 9 and second connecting rod 82 is hinged, and the upper end of second connecting rod 82 is hinged on hanger bracket 4, and extension spring 7 is located at
In the inner chamber of hanger bracket 4, and the left end of extension spring 7 is fixedly connected with link bolt 6, and right-hand member is fixedly connected with hanger bracket 4.
Such as Fig. 2, the transmission mechanism 11 in the present invention includes the first installing plate 110, the first electric pushrod 111, the first slide rail
112nd, the first sliding block 113, the second installing plate 114, the second electric pushrod 115, the second slide rail 116, the second sliding block 117 and connection
Plate 118, the first installing plate 110 are fixedly connected on connecting seat 3, and the first slide rail 112 is fixedly connected on the first installing plate 110,
First sliding block 113 is slidably connected on the first slide rail 112, and the second installing plate 114 is fixedly connected on the first sliding block 113, and first
Electric pushrod 111 is fixedly connected on the first installing plate 110, and output shaft is connected with the second installing plate 114, and drives the second peace
Loading board 114 is slided on the first installing plate 110.Second slide rail 116 is fixedly connected on the second installing plate 114, and the second slide rail
116 is perpendicular with the first slide rail 112, and connecting plate 118 is slidably connected on the second slide rail 116 by the second sliding block 117, the second electricity
Dynamic push rod 115 is fixedly connected on the second installing plate 114, and output shaft is connected with connecting plate 118, and drive connection plate 118 exists
Slided on second installing plate 114.Hanger bracket 4 and first connecting rod 81 are articulated with connecting plate 118.
The present invention is provided with connecting pin for ease of the right-hand member of extension spring 7 is fixed on hanger bracket 4 on the inwall of hanger bracket 4
41, the right-hand member of extension spring 7 is fixed on the connecting pin 41.
The present invention is provided with for ease of hanger bracket 4 is articulated with the connecting plate 118 of transmission mechanism 11 on connecting plate 118
Boss 31 is connected, hanger bracket 4 is articulated with the connection boss 31.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, some improvement can also be made under the premise without departing from the principles of the invention, and these improvement also should be regarded as the present invention's
Protection domain.