CN215678911U

CN215678911U - Telescope base

Info

Publication number: CN215678911U
Application number: CN202122221979.3U
Authority: CN
Inventors: 孙玉峰; 张进; 刘晓海
Original assignee: Nantong Schmidt Opto Electrical Technology Co ltd
Current assignee: Nantong Schmidt Opto Electrical Technology Co ltd
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-01-28
Anticipated expiration: 2031-09-14

Abstract

The utility model discloses a telescope base which comprises a base mechanism and a support arm mechanism. The base mechanism is provided with an installation surface, and a fixed seat is arranged on the installation surface. The support arm mechanism is detachably sleeved on the fixed seat, a pressing hand wheel is arranged on the support arm mechanism in a penetrating mode, and the pressing hand wheel can be close to or far away from the fixed seat to achieve locking and releasing between the support arm mechanism and the fixed seat. The telescope base has good flexibility, is convenient to transport and carry, and can adjust the mounting position of the lens cone according to the gravity center of different lens cones so as to keep the stability of the lens cone in the shooting or observation process.

Description

Telescope base

Technical Field

The utility model relates to the technical field of astronomical observation auxiliary devices, in particular to a telescope base.

Background

In the process of astronomical photographing, it is often necessary to change photographing apparatuses of different sizes such as lens barrels. However, in the lens barrel base in the prior art, the positions of the lens barrels mounted on the lens barrel base are fixed positions and cannot be adjusted, and the traditional lens barrel base cannot adapt to the replacement of various lens barrels due to different gravity centers of the lens barrels with different sizes, so that the unstable situation can occur, the load-bearing requirement is often difficult to meet, and the user cannot easily shoot a celestial body.

The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a telescope base which has good flexibility, is convenient to transport and carry, and can adjust the installation position of a lens cone according to the gravity center of different lens cones so as to keep the stability of the lens cone in the shooting or observation process.

In order to achieve the above object, the present invention provides a telescope base, which comprises a base mechanism and a support arm mechanism.

The base mechanism is provided with an installation surface, and a fixed seat is arranged on the installation surface.

The support arm mechanism is detachably sleeved on the fixed seat, a pressing hand wheel is arranged on the support arm mechanism in a penetrating mode, and the pressing hand wheel can be close to or far away from the fixed seat to achieve locking and releasing between the support arm mechanism and the fixed seat.

In one or more embodiments, the fixing seat is detachably disposed on the mounting surface of the base mechanism.

In one or more embodiments, a plurality of sets of mounting holes are formed in the mounting surface along the length direction of the base mechanism, and the fixing seat can be selectively fixed with any one or more sets of mounting holes so as to adjust different mounting positions as required.

In one or more embodiments, the bottom of the support arm mechanism is provided with a mounting groove matched with the shape of the fixing seat, and the pressing hand wheel penetrates through the support arm mechanism and then can be ejected out from the side surface of the mounting groove.

In one or more embodiments, the pressing hand wheel is connected with the support arm mechanism in a threaded fit mode.

In one or more embodiments, the pressing hand wheel has a pressing surface matched with the fixing seat, and when the pressing hand wheel abuts against the fixing seat, the pressing surface is attached to the surface of the fixing seat, so that the support arm mechanism is locked with the fixing seat.

In one or more embodiments, the base mechanism and the arm mechanism each include a housing and a spindle base, and the housing and the spindle base are rotatably connected to each other.

In one or more embodiments, an encoder mechanism is disposed in the base mechanism and the arm mechanism, and the encoder mechanism includes a grating shaft rotatably disposed on the housing, a grating fixed on the grating shaft and rotating along with the grating shaft, and a photoelectric sensor fixed on the housing and used for sensing the grating.

In one or more embodiments, a speed increasing mechanism is disposed in the base mechanism and the arm mechanism, and the speed increasing mechanism includes a spindle driving wheel disposed on the rotating shaft base, a grating shaft driving wheel disposed on the grating shaft, and a driving belt connecting the spindle driving wheel and the grating shaft driving wheel.

In one or more embodiments, the diameter of the grating shaft drive wheel is smaller than the diameter of the spindle drive wheel.

In one or more embodiments, a lens barrel fixing seat is further disposed on the rotating shaft seat of the arm mechanism.

Compared with the prior art, the telescope base has the advantages that all the parts are detachably arranged, so that the telescope base has good flexibility and is convenient to transport and carry.

According to the telescope base, the fixing seat can be arranged at different positions on the base mechanism according to needs, the support arm mechanism can move freely on the fixing seat, and the lens cone is arranged on the lens cone fixing seat of the support arm mechanism, so that the support arm mechanism can be adjusted and arranged at different positions on the base mechanism according to lens cones with different sizes to keep the stability of the lens cone.

According to the telescope base, the encoder mechanism and the speed increasing mechanism are arranged, so that the accuracy of the positioning rotation angle of the lens cone fixing seat on the base mechanism and the support arm mechanism is improved.

Drawings

Fig. 1 is a perspective view of a telescope base according to an embodiment of the present invention.

FIG. 2 is an exploded view of a telescope base according to one embodiment of the utility model.

FIG. 3 is a cross-sectional view of a telescope base according to an embodiment of the present invention.

Fig. 4 is an enlarged view of a portion a in fig. 3.

FIG. 5 is a schematic view of a telescope base for mounting a long barrel according to an embodiment of the present invention.

FIG. 6 is a schematic view of a telescope base for mounting a short barrel according to an embodiment of the utility model.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

As shown in fig. 1 to 3, an embodiment of the utility model provides a telescope base, which includes a base mechanism 10, a fixing base 20, a supporting arm mechanism 30 and a lens barrel fixing base 40. The fixing base 20 is detachably mounted on the base mechanism 10. The arm mechanism 30 is movably disposed on the fixing base 20 and can be locked and released with the fixing base 20 by the pressing hand wheel 50. The lens barrel fixing seat 40 is rotatably disposed at an end of the arm mechanism 30 for fixing the lens barrel.

The base mechanism 10 includes a first housing 11 and a first shaft seat 12. The first housing 11 is rotatably mounted on a first shaft seat 12. The first housing 11 has a mounting surface 111 thereon, and the fixing base 20 is detachably disposed on the mounting surface 111. The mounting surface 111 is provided with a plurality of sets of mounting holes 112 along the longitudinal direction of the base mechanism 10. In one embodiment, the distance between two adjacent sets of mounting holes is the same.

The fixing base 20 is also provided with a through hole matching with the mounting hole 112 of the base mechanism 10. The fixing base 20 can be selectively fixed with any one or more sets of mounting holes to adjust different mounting positions according to requirements. In one embodiment, the holder 20 is configured as a dovetail rail to improve the stability of the arm mechanism 30 in contact with the holder 20.

In order to enable relative fixation of the first shaft seat 12 and the first housing 11. A clutch locking structure may be further installed between the first shaft seat 12 and the first housing 11. The clutch locking structure may be a locking structure in the prior art, or may be a structure in the present embodiment.

In the present embodiment, the clutch locking structure includes a clutch disc 61, a worm wheel 62, a clutch hand wheel 63 and a worm 64. The clutch disc 61 is fixed on the first shaft seat 12 through bolts, and a worm wheel 62 is sleeved above the clutch disc 61. Friction plates are provided between the worm wheel 62 and the clutch plate 61.

The clutch handwheel 63 is arranged in the first housing 11 and sleeved above the worm wheel 62, and the clutch handwheel 63 is rotatably connected with the worm wheel 62 through a plane needle bearing. When the clutch handwheel 63 is rotated, the clutch handwheel 63 can apply or release pressure to the worm wheel 62, so that the worm wheel 62 presses the friction plate to realize tight connection with the clutch disc 61 or easily realize manual rotation of the first shell 11.

A handle 65 is detachably arranged on the clutch handwheel 63 in the radial direction. The first housing 11 is provided with a handle rotation groove 113, and the handle 65 can move in the handle rotation groove 113 to drive the clutch handwheel 63 to rotate.

The first housing 11 is further fixedly provided with a worm seat 66, and the worm 64 can freely rotate in the worm seat 66 and is engaged with the worm wheel 62 in a tooth manner. A hand wheel 67 is connected to the worm 65 outside the first housing 11, and the angle of the first housing 11 relative to the first spindle base 12 can be adjusted by the hand wheel 67.

The supporting arm mechanism 30 is detachably sleeved on the fixing base 20, and the bottom of the supporting arm mechanism 30 is provided with a mounting groove matched with the shape of the fixing base 20. The pressing handwheel 50 is arranged on the side wall of the support arm mechanism 30 in a penetrating way and is in threaded fit connection with the support arm mechanism 30. The pressing hand wheel 50 has a pressing surface matched with the fixing seat 20, and the pressing surface is ejected out from the side surface of the mounting groove and pressed on the fixing seat 20. The pressing handwheel 50 can be rotatably close to or far from the fixed seat 20, so that the pressing surface is attached to or far from the surface of the fixed seat 20, and the locking and releasing between the support arm mechanism 30 and the fixed seat 20 are realized.

The arm mechanism 30 includes a second housing 31 and a second spindle base 32, and the second housing 31 and the second spindle base 32 are rotatably connected to each other. The lens barrel fixing seat 40 is fixedly disposed on the second rotating shaft seat 32 of the arm mechanism 30. In order to enable relative fixation of the second spindle base 32 and the second housing 31. The above clutch lock structure is also installed between the second rotary shaft holder 32 and the second housing 31.

In order to improve the accuracy of the positioning rotation angle of the base mechanism 10 and the lens barrel fixing base 40, an encoder mechanism 70 is provided in the base mechanism 10 and/or the arm mechanism 30.

As shown in fig. 4, the encoder mechanism 70 includes a mounting case 71 fixedly disposed on the housing 11, a grating shaft 72 rotatably disposed in the mounting case 71, a grating 73 fixed on the grating shaft 72 and rotating with the grating shaft 72, and a photosensor 74 fixed on the mounting case 71 for sensing the grating 73.

In order to make the grating shaft 72 rotate driven by the rotation of the first and second spindle bases 12 and 32, and to accurately obtain the rotation angles of the first and

second housings

11 and 31 relative to the first and second spindle bases 12 and 32, speed increasing mechanisms are further disposed between the first and second spindle bases 12 and 32 and the grating shaft 72. The speed increasing mechanism may include a spindle driving wheel disposed on the first and second spindle bases 12 and 32, a grating shaft driving wheel disposed on the grating shaft 72, and a driving belt 753 connecting the spindle driving wheel and the grating shaft driving wheel.

In an embodiment, grooves can be directly formed in the first rotating shaft seat 12, the second rotating shaft seat 32 and the grating shaft 72, a tooth structure is formed in the grooves, and the transmission belt 753 is respectively in meshing transmission with the first rotating shaft seat 12 and the grating shaft 72, and the second rotating shaft seat 32 and the grating shaft 72, so that the step of respectively fixing the transmission wheels on the first rotating shaft seat 12, the second rotating shaft seat 32 and the grating shaft 72 is omitted, and the material cost and the installation cost are saved.

To further improve the accuracy of the obtained rotation angle, the diameter of the grating shaft transmission wheel (grating shaft 72) is much smaller than the diameter of the spindle transmission wheel (groove on the spindle seat).

As shown in fig. 5 and 6, when the telescope base is installed and applied, the first pivot seat 12 of the base mechanism 10 may be first fixedly installed on the tripod 100, and then for different lens barrels (fig. 5 is a long lens barrel B, fig. 6 is a short lens barrel C), the fixing seats 20 are installed at both ends of the base mechanism 10 in the length direction as required, the arm mechanism 30 is then fixed on the fixing seat 20, and the lens barrel is fixed on the lens barrel fixing seat 40, and the arm mechanism 30 is adjusted on the fixing seat 20 according to the difference of the gravity centers of the different lens barrels, so as to improve the stability of the mounted lens barrel.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the utility model to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the utility model and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the utility model and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the utility model be defined by the claims and their equivalents.

Claims

1. A telescope base, comprising:

the base mechanism is provided with a mounting surface, and a fixed seat is arranged on the mounting surface;

the support arm mechanism is detachably sleeved on the fixed seat, a pressing hand wheel is arranged on the support arm mechanism in a penetrating mode, the pressing hand wheel can be close to or far away from the fixed seat, and therefore locking and releasing between the support arm mechanism and the fixed seat are achieved.

2. The telescope base of claim 1, wherein the mount is removably mounted to a mounting surface of the base mechanism.

3. The telescope base according to claim 2, wherein the mounting surface has a plurality of sets of mounting holes along a length direction of the base mechanism, and the fixing base is selectively fixed to any one or more sets of mounting holes to adjust different mounting positions as required.

4. The telescope base according to claim 1, wherein the bottom of the arm mechanism is provided with a mounting groove adapted to the shape of the fixing base, and the pressing handwheel is inserted into the arm mechanism and then ejected out of the side surface of the mounting groove.

5. The telescope base of claim 4, wherein the compression hand wheel is threadably engaged with the arm mechanism.

6. The telescope base according to claim 1, wherein the pressing hand wheel has a pressing surface that is matched with the fixing seat, and when the pressing hand wheel abuts against the fixing seat, the pressing surface is attached to the surface of the fixing seat, so that the support arm mechanism is locked with the fixing seat.

7. The telescope base of claim 1, wherein the base mechanism and the arm mechanism each comprise a housing and a spindle base, the housing and the spindle base being rotatably coupled.

8. The telescope base according to claim 7, wherein an encoder mechanism is provided in the base mechanism and/or the arm mechanism, the encoder mechanism including a grating shaft rotatably provided on the housing, a grating fixed to the grating shaft and rotatable therewith, and a photoelectric sensor fixed to the housing for sensing the grating.

9. The telescope base of claim 8, wherein a speed increasing mechanism is provided in the base mechanism and/or the arm mechanism, the speed increasing mechanism comprising a spindle drive wheel provided on the rotating shaft base, a grating shaft drive wheel provided on the grating shaft, and a belt connecting the spindle drive wheel and the grating shaft drive wheel.

10. The telescope base of claim 9, wherein the grating shaft drive wheel has a diameter less than a diameter of the spindle drive wheel.