CN209624899U - A kind of hand balance adjustment tripod for astronomical telescope - Google Patents

Abstract

The utility model discloses a hand-cranked balance adjustment tripod for an astronomical telescope, which comprises a base, three telescopic legs are movably connected on the base, an inner cylinder slides inside the telescopic legs, and a pulley is installed at the bottom of the inner cylinder. When adjusting the length of the telescopic leg, the inner cylinder inside the telescopic leg is extended downward by shaking the handle, and the inner cylinder slides on the ground through the pulley at the bottom, so that the operator can adjust the angle of the base without lifting the tripod. The device is small in size, beautiful in appearance and convenient in operation, which greatly reduces the physical energy consumption of the operator and lays a solid foundation for the subsequent work of the astronomical telescope.

Description

A hand-cranked balance adjustment tripod for astronomical telescopes

technical field

The utility model relates to the field of astronomical telescopes, in particular to a hand-cranked balance adjustment tripod for astronomical telescopes.

Background technique

With the improvement of astronomy popularization rate, more and more astronomy enthusiasts choose to buy their own astronomical telescope, they need to adjust the length of the tripod telescopic legs, but the existing tripod needs to lift the equipment before adjustment, because the astronomical telescope is very heavy , which makes it difficult for manpower to complete this work, such as a telescopic tripod disclosed in Patent No. 201820970219.8, the telescopic legs in the device include a supporting leg 1 and a supporting leg 2 that can be retracted in the supporting leg 1. The supporting leg 1 There is a hollow chute inside, and the second support leg slides in the chute in the first support leg. When fully retracted, the second support leg can be completely accommodated in the support leg one, and the second support leg is hinged on the base to support The second leg can adjust the angle freely on the base. The second support leg is provided with a positioning groove, and the first support leg is provided with a positioning mechanism that matches the positioning groove. After adjusting to the appropriate height and angle, the positioning mechanism is used to fix the positioning. Through the flexible adjustment of multiple telescopic legs and the fixing of the positioning mechanism after the adjustment, the bracket can be applied to various terrains, and the camera equipment can be precisely positioned on various rough ground, which greatly improves the photographing and videography. Although the device can freely adjust the length of the telescopic leg, it still needs to lift the tripod to adjust a single telescopic leg. When the adjustment work occurs frequently, this kind of device not only consumes a lot of physical strength, but also It requires more than two people to cooperate, the flexibility is poor, and the convenience needs to be further improved.

SUMMARY OF THE INVENTION

The purpose of this utility model is to provide a kind of hand-cranked balance adjustment tripod for astronomical telescope, to change the horizontal angle of astronomical telescope conveniently, reduce the difficulty of personnel's operation, in order to realize the above-mentioned purpose, the utility model provides the following technical scheme:

A hand-cranked balance adjustment tripod for an astronomical telescope, comprising a base and a telescopic leg, characterized in that: the telescopic leg comprises an outer tube, an inner tube, a pulley and an installation box, and the top of the outer tube and the base are The outer side walls are hinged to each other, the inner cylinder is slidably installed inside the outer cylinder, the pulley is rotatably installed at the bottom of the inner cylinder, the pulley is also provided with a brake pad, the installation box is fixedly arranged on the outer side wall of the outer cylinder, the Chute grooves are installed on the inner walls of the left and right sides of the outer cylinder, sliders that cooperate with the sliding grooves are arranged at the left and right ends of the inner cylinder, the inner cylinder is a rectangular box-packed structure with an opening at the top, and the inner wall of the bottom of the inner cylinder is provided with a sliding block. A second bearing is provided, an inner thread sleeve is rotatably installed through the second bearing, a screw rod is rotatably installed in the inner thread sleeve, and the top of the screw rod is rotatably installed on the inner wall of the top end of the outer cylinder through the third bearing. A second bevel gear is fixedly sleeved on the screw, the second bevel gear and the first bevel gear are hinged to each other, the first bevel gear is fixedly installed on the left end of the connecting shaft, the connecting shaft is rotatably installed in the first bearing, and the first bearing is fixedly arranged On the inner wall of the installation box, the right end of the connecting shaft penetrates and protrudes to the outside of the installation box and is fixedly connected with the rocker arm, and the other end of the rocker arm is also fixedly connected with a handle.

Preferably, an outer cylinder connecting ring is fixedly installed on the top of the outer cylinder, a hinge is installed on the outer side wall of the base, and the outer cylinder connecting ring and the hinge are hinged to each other.

Preferably, the bottom of the inner cylinder is fixedly mounted with an inner cylinder adapter ring, and the pulley is rotatably mounted on the bottom of the inner cylinder adapter ring.

Preferably, upper blocks are fixedly installed on the front and rear outer walls of the top of the inner cylinder, and lower blocks are fixedly installed on the front and rear inner walls of the bottom of the outer cylinder.

Preferably, an outer ring is also fixedly installed on the outside of the installation box, and a fastening device is provided through the outer ring, and the fastening device includes a bolt, a second inner threaded sleeve, a non-slip head and a wear-resistant rubber ring. The second inner threaded sleeve is fixedly installed on the outer ring, the bolt is rotatably arranged inside the second inner threaded sleeve, and the bottom of the bolt is also provided with a non-slip head.

Preferably, the wear-resistant rubber ring is fixedly sleeved on the connecting shaft, and the anti-skid head is matched and arranged just above the wear-resistant rubber ring.

Compared with the prior art, the beneficial effect achieved by the present utility model is: the present utility model can quickly change the horizontal angle of the astronomical telescope by hand-cranking, and the tripod does not need to be lifted, which greatly reduces the physical energy of the operator. consumption, laying a solid foundation for the subsequent work of the astronomical telescope, and the device also has the advantages of small size, beautiful appearance and convenient operation.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification, and are used to explain the present utility model together with the embodiments of the present utility model, and do not constitute a limitation to the present utility model. In the accompanying drawings:

Fig. 1 is the overall structure schematic diagram of the present utility model;

2 is a schematic diagram of the internal structure of the telescopic leg of the present invention;

3 is a schematic diagram of the specific structure of the fastening device of the present invention.

In the figure: 1. Base; 2. Hinged piece; 3. Outer cylinder connection ring; 4. Installation box; 5. Rocker arm; 6. Handle; 7. Outer cylinder; 8. Inner cylinder; 9. Pulley; 10, 11. Telescopic leg; 12. Outer ring; 13. Fastening device; 14. Connecting shaft; 15. First bearing; 16. Upper stop; 17. Lower stop; 18. Second bearing; 19. Chute; 20. Internal threaded sleeve; 21. First bevel gear; 22. Second bevel gear; 23. Screw; 24. Third bearing; 25. Bolt; 26. Second internal threaded sleeve; 27 , Anti-skid head; 28, wear-resistant rubber ring.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. For example, based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

Please refer to Figure 1-3, a hand-cranked balance adjustment tripod for an astronomical telescope, including a base 1 and a telescopic leg 11, the telescopic leg 11 includes an outer tube 7, an inner tube 8, a pulley 9 and a mounting box 4, the outer tube The top of the 7 is fixedly installed with an outer cylinder adapter ring 3, the main body of the outer cylinder adapter ring 3 is a square boxed structure with an open bottom, and an ear is fixedly installed on the top of the square box, and the outer side wall of the base 1 is installed. A hinge 2 is installed, the outer cylinder connecting ring 3 is mutually hinged with the hinge 2 through the ear, the lower end of the outer cylinder connecting ring 3 is sleeved on the periphery of the outer cylinder 7 and is fixedly connected with the outer cylinder by screws, and the inner cylinder 8 is slidably installed on the outer cylinder. Inside the cylinder 7, the inner walls of the left and right sides of the outer cylinder 7 are provided with sliding grooves 19, the left and right ends of the inner cylinder 8 are provided with sliders that cooperate with the sliding grooves 19, and the bottom of the inner cylinder 8 is fixedly installed with an inner cylinder Adapter ring 10, the main body of the inner barrel adapter ring 10 is a square box structure with an open top, and the bottom of the square box is symmetrically installed with two lugs, and the pulley 9 is rotatably installed on the bottom of the inner barrel adapter ring 10. Between the lugs, the pulley 9 is also provided with a brake pad, and the upper end of the inner cylinder connecting ring 10 is sleeved on the bottom periphery of the inner cylinder 8 and is fixedly connected with the inner cylinder 8 by screws;

An installation box 4 is fixedly installed on the outer side wall of the outer cylinder 7, and an outer ring 12 is also fixedly installed on the outer side of the installation box 4. A fastening device 13 is provided through the outer ring 12, and the fastening device 13 includes a bolt 25, a second inner thread The sleeve 26 , the anti-skid head 27 and the wear-resistant rubber ring 28 , the second inner thread sleeve 26 is fixedly installed on the outer ring 12 , the bolt 25 is rotatably arranged inside the second inner thread sleeve 26 , and the bottom of the bolt 25 is also provided There is a non-slip head 27, the wear-resistant rubber ring 28 is fixedly sleeved on the connecting shaft 14, the anti-slip head 27 is arranged directly above the wear-resistant rubber ring 28, the inner cylinder 8 is a rectangular boxed structure with an open top, and the outer cylinder 7 is The boxed structure of a rectangular parallelepiped with an opening at the bottom, an upper stopper 16 is fixedly installed on the front and rear outer walls of the top of the inner cylinder 8, a lower stopper 17 is fixedly installed on the front and rear inner walls of the bottom of the outer cylinder 7, and the upper stopper 16 and the lower stopper 17. The function is to prevent the inner cylinder 8 from falling out of the outer cylinder 7 when the displacement is too long. A second bearing 18 is provided on the inner wall of the bottom of the inner cylinder 8, and the inner threaded sleeve 20 is rotated and installed through the second bearing 18. The inner threaded sleeve 20 A screw 23 is rotatably installed inside, the top of the screw 23 is rotatably mounted on the inner wall of the top end of the outer cylinder 7 through a third bearing 24, a second bevel gear 22 is fixedly sleeved on the screw 23, the second bevel gear 22 and the first bevel gear 21 Hinged to each other, the first bevel gear 21 is fixedly installed on the left end of the connecting shaft 14, the connecting shaft 14 is rotatably installed in the first bearing 15, the first bearing 15 is fixedly arranged on the inner wall of the installation box 4, and the right end of the connecting shaft 14 penetrates and It extends to the outside of the installation box 4 and is fixedly connected with the rocker arm 5 , and the other end of the rocker arm 5 is also fixedly connected with a handle 6 .

Specifically, an implementation method of the present invention is as follows: the three telescopic legs 11 of the tripod are spread out and placed on the ground, and when the angle of the base 1 needs to be adjusted, the brake pads of the bottom pulley of one of the telescopic legs 11 are opened and shaken The handle 6 drives the connecting shaft 14 to rotate, and the connecting shaft 14 further transmits the torque to the screw 23 through the transmission between the first bevel gear 21 and the second bevel gear 22, and the screw 23 makes the inner thread sleeve 20 rotate and downward Moving, the inner threaded sleeve 20 further pushes the inner cylinder 8 to move downward, the inner cylinder 8 slides on the ground through the casters 9 at the bottom when it is extended, and the clamping between the telescopic legs and the ground is changed by changing the extension length of the inner cylinder 8 The angle between the base 1 and the ground is adjusted. After the adjustment is completed, the brake pads on the lower press casters prevent it from moving. Due to the self-locking effect between the screw 23 and the inner thread sleeve 20, the length of the telescopic legs is fixed. , in order to avoid the rotation of the screw due to vibration or accidentally touching the handle, after the length adjustment of the telescopic leg is completed, toggle the bolt 25 to make it rotate downward, further making the anti-slip head 27 at the bottom of the bolt 25 and the connecting shaft 14 resistant The grinding rubber rings 28 collide with each other and play a tightening effect on the connecting shaft 15 .

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still understand the foregoing. The technical solutions recorded in the various embodiments are modified, or some of the technical features thereof are equivalently replaced. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the present utility model. within the scope of the new protection.

Claims (6)

1. A hand-cranked balance adjustment tripod for an astronomical telescope, comprising a base (1) and a telescopic leg (11), wherein the telescopic leg (11) comprises an outer tube (7), an inner tube (8) ), a pulley (9) and an installation box (4), the top of the outer cylinder (7) is hinged with the outer side wall of the base (1), and the inner cylinder (8) is slidably installed inside the outer cylinder (7) , the pulley (9) is rotatably installed at the bottom of the inner cylinder (8), the pulley (9) is also provided with a brake pad, the installation box (4) is fixedly arranged on the outer side wall of the outer cylinder (7), the Chute grooves (19) are installed on the inner walls of the left and right sides of the outer cylinder (7), the left and right ends of the inner cylinder (8) are provided with sliders that cooperate with the sliding grooves (19) to slide, and the inner cylinder (8) It is a cuboid boxed structure with an open top, a second bearing (18) is arranged on the inner wall of the bottom of the inner cylinder (8), and an inner thread sleeve (20) is rotatably installed through the second bearing (18). A screw (23) is rotatably installed in the barrel (20), the top of the screw (23) is rotatably mounted on the inner wall of the top end of the outer barrel (7) through a third bearing (24), and the screw (23) is fixedly sleeved There is a second bevel gear (22), the second bevel gear (22) is hinged with the first bevel gear (21), and the first bevel gear (21) is fixedly installed on the left end of the connecting shaft (14), and the connecting shaft (14) It is rotatably installed in the first bearing (15), the first bearing (15) is fixedly arranged on the inner wall of the installation box (4), and the right end of the connecting shaft (14) penetrates and protrudes to the outside of the installation box (4). and is fixedly connected with the rocker arm (5), and the other end of the rocker arm (5) is also fixedly connected with a handle (6). 2. A hand-cranked balance adjustment tripod for an astronomical telescope according to claim 1, characterized in that: the top of the outer tube (7) is fixedly installed with an outer tube adapter ring (3), and the base A hinge piece (2) is installed on the outer side wall of (1), and the outer cylinder connecting ring (3) and the hinge piece (2) are hinged to each other. 3. A hand-cranked balance adjustment tripod for an astronomical telescope according to claim 1, characterized in that: the bottom of the inner barrel (8) is fixedly installed with an inner barrel adapter ring (10), and the pulley ( 9) Rotate the bottom of the inner barrel adapter ring (10). 4. A hand-cranked balance adjustment tripod for an astronomical telescope according to claim 1, characterized in that: upper blocks (16) are fixedly installed on the front and rear outer walls of the top of the inner cylinder (8), and the Lower blocks (17) are fixedly installed on the front and rear inner walls of the bottom of the outer cylinder (7). 5. A hand-cranked balance adjustment tripod for an astronomical telescope according to claim 1, characterized in that: an outer ring (12) is also fixedly installed on the outside of the installation box (4), and the outer ring (12) ) is provided with a fastening device (13), the fastening device (13) includes a bolt (25), a second inner threaded sleeve (26), a non-slip head (27) and a wear-resistant rubber ring (28), the The second inner threaded sleeve (26) is fixedly installed on the outer ring (12), the bolt (25) is rotatably arranged inside the second inner threaded sleeve (26), and the bottom of the bolt (25) is also provided with a non-slip head ( 27). 6. A hand-cranked balance adjustment tripod for an astronomical telescope according to claim 5, characterized in that: the wear-resistant rubber ring (28) is fixedly sleeved on the connecting shaft (14), and the anti-skid head (27) is fitted right above the wear-resistant rubber ring (28).