A telescopic mirror tube nest structure of an astronomical telescope

Abstract

The utility model discloses telescopic mirror barrel nested structure of astronomical telescope, including front mirror barrel and rear mirror barrel, the downside interval fixed of front mirror barrel has two mounting plates, and the front end outside of two mounting plates is rotatablely connected with a connecting frame, and the middle part of connecting frame is equipped with adjusting mechanism with rear mirror barrel, and the rear end of connecting frame is detachably fixedly connected with two mounting plates, and adjusting mechanism includes the pivot rotatablely connected in the middle part of connecting frame, and the end of pivot is equipped with adjusting part, and the middle part is equipped with gear, and the downside of rear mirror barrel is fixed with the rack of gear cooperation, and the middle part of mounting plate is equipped with the avoidance slot for the pivot and gear, when the utility model needs to fine tune the length of telescopic mirror barrel, the rear end of connecting frame is fixed with mounting plate, then can adjust through adjusting mechanism, when needing faster and large amplitude telescopic mirror barrel length adjustment, thereby makes gear and rack separate, then can push and pull rear mirror barrel to adjust telescopic mirror barrel length, convenient and fast.

Description

Technical Field

[0001] This utility model relates to the field of astronomical telescope technology, specifically to a telescopic telescope tube nesting structure. Background Technology

[0002] Telescopes, characterized by adjustable viewing angles and portability, are commonly used observational equipment by amateur astronomers. Users adjust the tube length to achieve different magnifications, making them suitable for astronomical observation and outdoor activities. Currently, telescope tubes are generally connected by a sliding joint. For telescopes without additional adjustment mechanisms, the tube length can be adjusted by hand, while some telescopes with adjustment mechanisms require adjustment via knobs on the adjustment mechanism. Telescopes without additional adjustment mechanisms offer greater flexibility, allowing for quick changes in length by hand, but precise adjustments within a small range are difficult. Telescopes with adjustment mechanisms allow for fine adjustments, but this can be time-consuming when the adjustment range is large. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a retractable telescope tube nesting structure for astronomical telescopes.

[0004] To achieve the above objectives, this utility model provides a telescopic telescope tube nesting structure, including a front tube and a rear tube slidably connected to the front tube. Two mounting plates are fixedly spaced on the lower side of the front tube. The outer front ends of the two mounting plates are rotatably connected to a connecting frame. An adjustment mechanism is provided between the middle of the connecting frame and the rear tube. The rear end of the connecting frame is detachably fixedly connected to the two mounting plates. The adjustment mechanism includes a rotating shaft rotatably connected to the middle of the connecting frame. An adjustment element is provided at the end of the rotating shaft, and a gear is provided in the middle. A rack that meshes with the gear is fixed on the lower side of the rear tube. A clearance groove is provided in the middle of the mounting plate for the rotating shaft and the gear to pass through.

[0005] Furthermore, the connecting frame is U-shaped.

[0006] Furthermore, a connecting shaft is fixed to the outer front end of each of the two mounting plates, and the front end of the connecting bracket is provided with a connecting hole, into which the connecting shaft is inserted.

[0007] Furthermore, the connecting frame has a mounting hole in the middle, a connecting sleeve is fixed on the outside of the mounting hole, and the rotating shaft is rotatably connected to the inside of the connecting sleeve.

[0008] Furthermore, the connecting sleeve is a polytetrafluoroethylene (PTFE) connecting sleeve.

[0009] Furthermore, the adjusting component is an adjusting knob, and there are two adjusting knobs, which are respectively located at both ends of the rotating shaft.

[0010] Furthermore, the rear end of the connecting frame is provided with a corresponding insertion hole at the mounting plate, and a pin is inserted into the insertion hole.

[0011] Furthermore, the rear end of the front lens barrel is provided with a sliding sleeve, the rear lens barrel is slidably connected to the inner side of the sliding sleeve, the lower end of the sliding sleeve is provided with an opening, two mounting plates are respectively provided on both sides of the lower end of the opening, and the rack is provided inside the opening.

[0012] Beneficial effects: This utility model rotatably connects the front end of the connecting frame to the mounting plate and detachably fixes the rear end of the connecting frame to the mounting plate. When the length of the telescopic lens tube needs to be finely adjusted, the rear end of the connecting frame is fixed to the mounting plate, which allows the gear and rack to mesh. Then, the adjustment can be made by adjusting the mechanism. When a faster and larger adjustment of the length of the telescopic lens tube is needed, the rear end of the connecting frame is separated from the mounting plate, which disengages the gear and rack. Then, the rear lens tube can be pushed and pulled to adjust the length of the telescopic lens tube, which is convenient and quick. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the retractable telescope tube nesting structure of an embodiment of the present invention;

[0014] Figure 2 This is a schematic diagram of the telescopic telescope tube nesting structure of this utility model embodiment in the state of adjustment mechanism failure. Detailed Implementation

[0015] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. These embodiments are implemented under the premise of the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0016] like Figure 1 and Figure 2As shown, this embodiment of the invention provides a telescopic telescope tube nesting structure, including a front tube 1 and a rear tube 2, which are slidably connected. Two mounting plates 3 are fixedly fixed at intervals on the lower side of the front tube 1. The outer front ends of the two mounting plates 3 are rotatably connected to a connecting frame 4. An adjustment mechanism 5 is provided between the middle of the connecting frame 4 and the rear tube 2. The rear end of the connecting frame 4 is detachably fixedly connected to the two mounting plates 3. The adjustment mechanism 5 includes a rotating shaft 51 rotatably connected to the middle of the connecting frame 4, an adjusting element 52 at the end of the rotating shaft 51, a gear 53 in the middle of the rotating shaft 51, a rack 54 cooperating with the gear 53 fixed on the lower side of the rear tube 2, and a clearance groove 31 in the middle of the mounting plate 3 for the rotating shaft 51 and the gear 53 to pass through. When precise adjustment of the telescopic lens barrel length is required within a small range, the rear end of the connecting bracket 4 is fixed to the mounting plate 3. The rotating shaft 51 and gear 53 are positioned within the clearance groove 31. At this time, gear 53 is engaged with rack 54. By manually rotating the adjusting component 52, gear 53 is driven to rotate. When gear 53 rotates, it drives rack 54 and rear lens barrel 2 to move, thereby adjusting the length of the telescopic lens barrel. When a quick adjustment of the telescopic lens barrel length is required, the rear end of the connecting bracket 4 is released from the mounting plate 3. At this time, the connecting bracket 4 rotates downward around the rear end of the mounting plate 3, causing rotating shaft 51 and gear 53 to disengage from the clearance groove 31. After gear 53 disengages from rack 54, the length of the telescopic lens barrel can be adjusted by manually pushing or pulling the rear lens barrel 2.

[0017] The connecting bracket 4 is preferably U-shaped, with its two sides positioned on the outer sides of the two mounting plates 3 for easy connection. Specifically, a connecting shaft 6 is fixed to the outer front end of each of the two mounting plates 3. A connecting hole 41 is provided at the front end of the connecting bracket 4, and the connecting shaft 6 is inserted into the connecting hole 41, allowing the connecting bracket 4 to rotate relative to the connecting shaft 6. The connecting shaft 6 can be threadedly fixed to the mounting plate 3.

[0018] To reduce the resistance to the rotation of the shaft 51, a mounting hole is provided in the middle of the connecting frame 4. A connecting sleeve 7 is fixed to the outside of the mounting hole, and the shaft 51 is rotatably connected to the inside of the connecting sleeve 7. The connecting sleeve 7 can be fixed to the connecting frame 4 by multiple screws. The connecting sleeve 7 can be convex in shape, with its smaller outer diameter end inserted into the mounting hole. The connecting sleeve 7 is preferably a polytetrafluoroethylene (PTFE) connecting sleeve, which has a low coefficient of friction and wear resistance.

[0019] The aforementioned adjusting element 52 is an adjusting knob. There are two adjusting knobs, which are respectively located at both ends of the rotating shaft 51. The outer circumference of the adjusting knob may be provided with raised grooves to prevent slippage when rotating the adjusting knob.

[0020] The rear end of the connecting bracket 4 and the rear end of the mounting plate 3 can be detachably and fixedly connected by setting a buckle assembly. More preferably, an insertion hole 8 is provided at the corresponding position of the rear end of the connecting bracket 4 and the mounting plate 3, and a pin 9 is inserted into the insertion hole 8. The connecting bracket 4 and the rear end of the mounting plate 3 are fixed by the pin 9, and the fixation can be released by pulling out the pin 9.

[0021] A sliding sleeve 10 is provided at the rear end of the front lens barrel 1, and the rear lens barrel 2 is slidably connected to the inner side of the sliding sleeve 10. An opening is provided at the lower end of the sliding sleeve 10, and two mounting plates 3 are respectively provided on both sides of the lower end of the opening. The aforementioned rack 54 is provided inside the opening.

[0022] The above description is merely a preferred embodiment of this utility model. It should be noted that for those skilled in the art, other parts not specifically described are existing technology or common knowledge. Several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A telescopic telescope tube nesting structure, characterized in that, The lens includes a front lens barrel and a rear lens barrel slidably connected to the front lens barrel. Two mounting plates are fixedly spaced on the lower side of the front lens barrel. The outer front ends of the two mounting plates are rotatably connected to a connecting frame. An adjustment mechanism is provided between the middle part of the connecting frame and the rear lens barrel. The rear end of the connecting frame is detachably fixedly connected to the two mounting plates. The adjustment mechanism includes a rotating shaft rotatably connected to the middle part of the connecting frame. An adjustment element is provided at the end of the rotating shaft, and a gear is provided in the middle part. A rack that meshes with the gear is fixed on the lower side of the rear lens barrel. A clearance groove is provided in the middle part of the mounting plate for the rotating shaft and the gear to pass through.

2. The telescopic telescope tube nesting structure according to claim 1, characterized in that, The connecting frame is U-shaped.

3. The telescopic telescope tube nesting structure according to claim 1, characterized in that, A connecting shaft is fixed to the outer front end of each of the two mounting plates. The front end of the connecting bracket is provided with a connecting hole, and the connecting shaft is inserted into the connecting hole.

4. The telescopic telescope tube nesting structure according to claim 1, characterized in that, The connecting frame has a mounting hole in the middle, and a connecting sleeve is fixed on the outside of the mounting hole. The rotating shaft is rotatably connected to the inside of the connecting sleeve.

5. The telescopic telescope tube nesting structure according to claim 4, characterized in that, The connecting sleeve is a polytetrafluoroethylene (PTFE) connecting sleeve.

6. The telescopic telescope tube nesting structure according to claim 1, characterized in that, The adjusting component is an adjusting knob, and there are two adjusting knobs, which are respectively located at both ends of the rotating shaft.

7. The telescopic telescope tube nesting structure according to claim 1, characterized in that, The rear end of the connecting frame is provided with a corresponding insertion hole on the mounting plate, and a pin is inserted into the insertion hole.

8. The telescopic telescope tube nesting structure according to claim 1, characterized in that, The rear end of the front lens barrel is provided with a sliding sleeve, the rear lens barrel is slidably connected to the inside of the sliding sleeve, the lower end of the sliding sleeve is provided with an opening, two mounting plates are respectively provided on both sides of the lower end of the opening, and the rack is provided inside the opening.

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