CN217007849U

CN217007849U - Telescope with visibility and focal length adjusting mechanism

Info

Publication number: CN217007849U
Application number: CN202221465341.2U
Authority: CN
Inventors: 张富贵; 梁广渠
Original assignee: Chengdu Sainuote Optics Co ltd
Current assignee: Chengdu Sainuote Optics Co ltd
Priority date: 2022-06-13
Filing date: 2022-06-13
Publication date: 2022-07-19
Anticipated expiration: 2032-06-13

Abstract

The utility model relates to the technical field of telescopes and discloses a telescope with a visibility and focus adjusting mechanism, wherein a shaft rod comprises a focusing section and a sleeving section which are coaxially and sequentially arranged from top to bottom; the lens cone is arranged in parallel with the shaft rod, and the side wall of the lens cone is sleeved on the side wall of the sleeving section through a connecting arm; the focusing mechanism comprises an inner disc sleeve, an outer disc sleeve, an adjusting rod, a pin and a movable lens group; the inner wall of the inner disc sleeve is sleeved on the focusing section and is rotationally connected with the outer wall of the focusing section, and a rotating hand disc is arranged on the upper section of the inner disc sleeve in a circumferential protruding manner; the inner wall of the outer disk sleeve is screwed with the outer wall of the lower section of the inner disk sleeve by screw threads; the side edge of the outer disc sleeve is clamped in a circumferential ring groove at the upper section of the adjusting rod, the middle section of the adjusting rod is slidably mounted on the connecting arm along the direction parallel to the shaft rod, and the fixed end of the pin is mounted in a radial hole at the lower section of the adjusting rod; the extending end of the pin extends into the lens cone through a yielding hole on the side wall of the lens cone to be connected with the movable lens group, and the movable lens group is connected with the inner wall of the lens cone in a sliding manner.

Description

Telescope with visibility and focus adjusting mechanism

Technical Field

The utility model relates to the technical field of telescopes, in particular to a telescope with a visibility and focal length adjusting mechanism.

Background

In the prior art, binocular adjustment includes diopter adjustment and focal length adjustment. The diopter adjustment is usually accomplished by rotating the eyepiece or objective lens and then moving the eyepiece or objective lens. The mode needs the telescope to keep higher processing precision, otherwise, the sealing performance is poor, and water vapor enters the lens barrel along with the rotation joint gap and then is condensed on the lens to influence the using effect of the telescope.

The focal length adjustment usually uses an adjusting rod moving along the axial direction of the lens cone to drive a pull rod arranged along the radial direction of the lens cone, and finally drives the movement of the movable lens group in the lens cone through the pull rod so as to realize the focal length adjustment. In order to ensure the tightness, the connecting parts of the adjusting rod, the pull rod and the movable lens group are generally positioned in a closed cavity. In order to improve the adjustment precision, people's inertial thinking is to improve the adjustment pole, the pull rod and the design size uniformity of the moving mirror group junction, but because the ubiquitous of various types of machining errors, and each part producer differs the machining precision control, the degree of difficulty improves when leading to the assembler to carry out subsequent assembly, more because the restriction in closed chamber makes the assembly inconvenient, the assembly degree of difficulty has further been increased, even the part has often produced stress deformation after the successful assembly, the phenomenon of moving mirror group slope jamming appears, lens cone inner wall scraping during focusing, the telescope imaging effect and life are finally influenced. And this high dimensional consistency of precision assembly can make disassembly and repair more difficult.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a telescope with a visibility and focal length adjusting mechanism, which realizes the focal length and visibility adjusting function of the telescope by adjusting the position of a moving lens group in a lens barrel.

The utility model is realized by the following technical scheme: a telescope with a visibility and focus adjusting mechanism comprises a lens cone, a connecting arm, a shaft lever and an adjusting mechanism;

the inner wall of the lens cone is provided with a movable lens group in an axial sliding way;

the shaft lever and the lens cone are arranged in parallel and are connected with each other through a connecting arm;

the adjusting mechanism comprises an inner disc sleeve, an outer disc sleeve, an adjusting rod and a pin; the utility model discloses a lens barrel, including inner disc cover, inner disc cover, annular, the cover of adjusting the pole, the spacing cover that rotates of inner disc cover inner wall axial is located the axostylus axostyle, outer disc cover inner wall with the cover section outer wall of inner disc cover connects through the screw soon, and parallel axostylus axostyle sets up the upper segment of adjusting the pole is equipped with the annular along the circumference indent, the embedding is equipped with in the annular the disk section outer fringe of outer disc cover, adjust the pole middle section along length direction slidable mounting on the linking arm, it is equipped with radial hole to adjust the pole hypomere, radial hole clearance fit has the stiff end of round pin, the extension end of round pin passes hole of stepping down on the lens cone lateral wall and be connected with the removal mirror group.

Through the disk section of user wrench movement inner disc cover, the circumferential direction of outer disc cover is restricted, under the effect of screw thread when leading to inner disc cover to rotate, outer disc cover moves in self central axis direction, and the annular of pole is adjusted in the disk section outer fringe embedding of outer disc cover simultaneously, drives and adjusts the pole and move along self length direction, and then drives the round pin on adjusting the pole to finally realize that the drive removes the mirror group and slides in the lens cone, realize the focusing effect. Meanwhile, the radial hole and the pin are designed in a clearance fit manner, so that even if a part formed by subsequent machining has a large error, the pin can be easily assembled with the radial hole, the condition that the pin cannot be assembled when the pin cannot be coaxially installed with the radial hole due to the part machining error in the interference or transition fit design is avoided, and the assembling difficulty is reduced; the clamping stagnation of the movable lens group and the inner wall of the lens cone caused by pressure on the movable lens group after the forced assembly of the pin and the radial hole is avoided.

Preferably, the movable mirror group comprises a mirror bracket and lenses, the side wall of the mirror bracket is provided with a jack, and the jack is in clearance fit with the extending end of the pin.

The jack and the extension end clearance fit design of round pin, when the jack is poor with radial hole depth of parallelism, also can let the round pin cooperate with jack and radial hole simultaneously, avoid the assembly difficulty or lead to removing the power slope of mirror group and take place the scraping jamming with the lens-barrel inner wall.

Further preferably, the disc section of the inner disc sleeve is a rotary hand disc, and anti-skid grains are arranged on the side wall of the rotary hand disc, so that a telescope user can conveniently adjust the focal length.

Further preferably, adjust the pole including degree of visibility regulating part and slide bar, degree of visibility regulating part with the coaxial setting of slide bar and tip connect soon through the screw thread, degree of visibility regulating part acts as adjust the pole upper segment, the slide bar acts as adjust pole middle section and adjust the pole hypomere. The fine adjustment of the position of the movable lens group is realized by rotating the visibility adjusting piece so as to adapt to different visions of the eyes of a user.

Further preferably, the visibility adjusting part and the joint of the sliding rod are provided with a stopping piece, the visibility adjusting part is limited by the stopping piece to rotate, and the visibility adjusting part is prevented from being driven in the focusing process of the telescope.

Further preferably, the stop piece comprises a bolt, a limiting key, a welding point, an adhesive layer and a damping layer.

Further preferably, the sliding rod is provided with a fastening screw for preventing the fixed end of the pin from coming out of the radial hole.

Further preferably, the connecting arm further comprises a sealing cavity, the sealing cavity is communicated with the inside of the lens barrel through a yielding hole in the side wall of the lens barrel, and the lower section of the adjusting rod is located in the sealing cavity.

Further preferably, the shaft lever comprises a focusing section, a sleeving section and a shaft shoulder, wherein the focusing section and the sleeving section are coaxially arranged, the shaft shoulder protrudes outwards along the circumferential direction at the joint of the focusing section and the sleeving section, the inner disc sleeve is rotatably sleeved on the focusing section, and the connecting arm is sleeved with the sleeving section.

Preferably, a first screw hole is formed in the top end of the focusing section, a limit screw is arranged in the first screw hole, and the limit screw is pressed and held on the inner edge of the disc section of the inner disc sleeve through a gasket; the bottom end of the sleeving section is provided with a second screw hole, a limiting bolt is arranged in the second screw hole, and a nut of the limiting bolt is pressed and held on the inner edge of the sleeving hole of the connecting arm.

Drawings

The technical solutions will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention.

FIG. 1 is a schematic view of a telescope with a diopter and focus adjustment mechanism according to the present invention;

FIG. 2 is a schematic view of the construction of the shaft of the present invention;

FIG. 3 is a schematic structural view of an inner hub of the present invention;

FIG. 4 is a schematic structural view of a lens barrel and a connecting arm according to the present invention;

FIG. 5 is a schematic view of the structure of the adjusting lever of the present invention;

FIG. 6 is a schematic view of a movable lens group according to the present invention;

FIG. 7 is an enlarged view of a portion of FIG. 1 at A;

FIG. 8 is an assembled view of the pin with the radial bore center axis higher than the receptacle center axis;

FIG. 9 is a schematic view of the pin assembly with the radial bore center axis lower than the receptacle center axis.

Wherein: 1. a shaft lever; 11. a focusing section; 111. a limit screw; 12. a sleeving section; 121. a limit bolt; 13. a shaft shoulder; 2. a lens barrel; 3. a connecting arm; 31. sealing the cavity; 4. an inner disc sleeve; 41. rotating the hand disc; 5. an outer disk sleeve; 6. adjusting a rod; 61. a visibility adjustment member; 62. a slide bar; 621. fastening screws; 7. a pin; 8. moving the lens group; 81. a frame; 82. a lens.

Detailed Description

The utility model will be described in further detail with reference to the following detailed description of illustrative embodiments. This should not be understood as limiting the scope of the above-described subject matter of the present invention to the following examples. Various substitutions and alterations according to the general knowledge and conventional practice in the art are intended to be included within the scope of the present invention without departing from the technical spirit of the present invention as described above.

Example 1:

a telescope with a diopter and focus adjusting mechanism of the present embodiment, as shown in fig. 1 to 9, includes a lens barrel 2, a connecting arm 3, a shaft 1 and an adjusting mechanism;

as shown in fig. 1, the inner wall of the lens barrel 2 is axially slidably provided with a movable lens group 8;

the shaft lever 1 and the lens barrel 2 are arranged in parallel and are connected with each other through a connecting arm 3; the lens cone 2 and the connecting arm 3 are generally integrally formed, but can be combined after being processed in a split mode;

the adjusting mechanism comprises an inner disc sleeve 4, an outer disc sleeve 5, an adjusting rod 6 and a pin 7; the spacing cover of 4 inner wall axial of inner disc cover is located axostylus axostyle 1 with the cover section outer wall of inner disc cover 4 connects through the screw thread soon, and parallel axostylus axostyle 1 sets up 6 upper segments of regulation pole are equipped with the annular along the circumference indent, the embedding in the annular is equipped with the disk section outer fringe of outer disc cover 5, adjust 6 middle sections of pole along length direction slidable mounting on linking arm 3, it is equipped with radial hole to adjust 6 hypomere of pole, radial downthehole clearance fit has the stiff end of round pin 7, the extension end of round pin 7 passes abdication hole on the 2 lateral walls of lens cone is connected with removal mirror group 8.

Through the disk section of user wrench movement inner disc cover 4, outer disc cover 5 restricts the circumferential motion through set up the draw-in groove of card income diopter adjustment piece 61 on self, under the effect of screw thread when leading to inner disc cover 4 to rotate, outer disc cover 5 moves in self central axis direction, the annular of adjusting pole 6 is adjusted in the embedding of the disk section outer fringe of outer disc cover 5 simultaneously, drive and adjust pole 6 and move along self length direction, and then drive and adjust the round pin 7 on pole 6, slide in lens cone 2 with final realization drive moving mirror group 8, realize the focusing effect. Meanwhile, the radial hole and the pin 7 are designed in a clearance fit manner, so that even if a part formed by subsequent machining has a large error, the pin 7 can be easily assembled with the radial hole, the condition that the pin 7 cannot be assembled when being coaxially mounted with the radial hole due to the part machining error in the interference or transition fit design is avoided, and the assembling difficulty is reduced; the phenomenon that the movable lens group 8 is pressed after the pin 7 and the radial hole are forcibly assembled, so that clamping stagnation of the movable lens group 8 and the inner wall of the lens cone 2 is avoided.

Example 2:

the present embodiment is further optimized and implemented on the basis of implementation 1, as shown in fig. 5, the adjusting rod 6 includes a visibility adjusting part 61 and a sliding rod 62, the visibility adjusting part 61 and the sliding rod 62 are coaxially disposed, and the end parts of the visibility adjusting part 61 and the sliding rod 62 are screwed together through threads, the visibility adjusting part 61 serves as the upper section of the adjusting rod 6, and the sliding rod 62 serves as the middle section of the adjusting rod 6 and the lower section of the adjusting rod 6. Before the telescope is used, the visibility is first zeroed to adapt to the binocular visibility.

A stopping piece is arranged at the joint of the visibility adjusting piece 61 and the sliding rod 62, and the stopping piece is used for limiting the visibility adjusting piece 61 and the sliding rod 62 to rotate relatively.

The stop piece comprises a bolt, a limiting key, a welding spot, an adhesive layer and a damping layer.

And a fastening screw 621 for preventing the fixed end of the pin 7 from falling out of the radial hole is arranged on the sliding rod 62.

The visibility adjusting part 61 and the sliding rod 62 coaxially screwed through threads jointly form the adjusting rod 6, the sliding rod 62 is lifted or pressed down in a small scale by screwing the visibility adjusting part 61 to adjust the visibility, and the left and right lens barrels 2 are correspondingly adapted to binocular visibility difference of users or eyeball visibility difference of different users respectively. Compared with the mode that the visual acuity is adjusted by directly rotating the ocular lens to adjust the axial distance between the ocular lens and the objective lens in the prior art, the integration degree of the lens cone 2 is improved, the internal sealing performance of the lens cone 2 is improved, and water vapor and dust are prevented from entering the lens cone 2 and being attached to the lens 82 to influence the observation effect of the telescope.

The rest of this embodiment is the same as embodiment 1, and thus, the description thereof is omitted.

Example 3:

this embodiment is further optimized and implemented on the basis of embodiment 1 or 2, as shown in fig. 4, the connecting arm 3 further includes a sealing cavity 31, the sealing cavity 31 is communicated with the inside of the lens barrel 2 through an abdicating hole on the side wall of the lens barrel 2, and the lower section of the adjusting rod 6 is located in the sealing cavity 31.

As shown in fig. 1 and 6, the movable mirror group 8 includes a mirror frame 81 and lenses 82, and a side wall of the mirror frame 81 is provided with an insertion hole, and the insertion hole is in clearance fit with the extending end of the pin 7.

As shown in fig. 7, the insertion holes and the extending ends of the pins 7 are designed to be in clearance fit, and as shown in fig. 8 and 9, when the parallelism of the insertion holes and the radial holes is poor, the pins 7 can be simultaneously matched with the insertion holes and the radial holes, thereby avoiding difficult assembly or scraping and clamping stagnation between the forced inclination of the movable lens group 8 and the inner wall of the lens barrel 2.

As shown in fig. 3, the disc section of the inner disc sleeve 4 is a rotating hand disc 41, and the side wall of the rotating hand disc 41 is provided with anti-slip lines, so that a user of the telescope can adjust the focal length conveniently.

The pin 7 and the jack of the radial hole of adjusting the 6 hypomere of pole, round pin 7 and mirror holder 81 lateral wall all adopt clearance fit's mode, avoid adopting interference or transition fit, effectively avoided the part assembly difficulty of different precision, prevent to remove 8 slope jamming of group of mirror because of reasons such as radial hole, round pin 7, jack depth of parallelism are poor or face cooperation precision is poor cause the telescope after the assembly shaping, reduce the installation degree of difficulty of round pin 7 in narrow and small airtight cavity. As shown in fig. 7-9, the pin 7 and the radial hole at the lower section of the adjusting rod 6, and the pin 7 and the insertion hole at the side wall of the mirror bracket 81 are in clearance fit, so that a certain degree of freedom is reserved for the pin 7, even if the pin 7 is inclined, the axial free motion of the movable mirror group 8 is not affected, and the movable mirror group 8 is not blocked.

As shown in fig. 1 and 2, the shaft rod 1 includes a focusing section 11, a sleeve section 12, and a shaft shoulder 13 protruding outward along the circumferential direction at the joint of the focusing section 11 and the sleeve section 12, the inner disc sleeve 4 is rotatably sleeved on the focusing section 11, and the connecting arm 3 is sleeved with the sleeve section 12.

A first screw hole is formed in the top end of the focusing section 11, a limit screw 111 is arranged in the first screw hole, and the limit screw 111 is pressed and held on the inner edge of the disc section of the inner disc sleeve 4 through a gasket; the bottom end of the sleeving section 12 is provided with a second screw hole, a limit bolt 121 is arranged in the second screw hole, and a nut of the limit bolt 121 is pressed and held on the inner edge of the sleeving hole of the connecting arm 3.

The rest of this embodiment is the same as embodiment 1 or 2, and therefore, the description thereof is omitted.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.

Claims

1. A telescope with a visibility and focus adjusting mechanism is characterized by comprising a lens cone (2), a connecting arm (3), a shaft lever (1) and an adjusting mechanism;

the inner wall of the lens cone (2) is provided with a movable lens group (8) in an axial sliding manner;

the shaft lever (1) and the lens barrel (2) are arranged in parallel and are connected with each other through a connecting arm (3);

the adjusting mechanism comprises an inner disc sleeve (4), an outer disc sleeve (5), an adjusting rod (6) and a pin (7); inner wall axial of inner disc cover (4) is spacing and rotate the cover and locate on axostylus axostyle (1), outer disc cover (5) inner wall with the cover section outer wall of inner disc cover (4) connects soon through the screw thread, and parallel axostylus axostyle (1) sets up the upper segment of adjusting pole (6) is equipped with the annular along the circumference indent, the embedding is equipped with in the annular the disk section outer fringe of outer disc cover (5), adjust pole (6) middle section along length direction slidable mounting on linking arm (3), it is equipped with radial hole to adjust pole (6) hypomere, radial hole clearance fit has the stiff end of round pin (7), the extension end of round pin (7) passes abdicating hole on lens cone (2) lateral wall and be connected with removal mirror group (8).

2. A telescope with mechanism for adjusting diopter and focus according to claim 1, characterized in that said mobile lens group (8) comprises a frame (81) and a lens (82), said frame (81) having a side wall provided with a hole, said hole being in clearance fit with the extended end of said pin (7).

3. A telescope with diopter and focus adjustment mechanism according to claim 1, characterized in that the disc segment of said inner sleeve (4) is a rotating handwheel (41).

4. The telescope with mechanism for adjusting diopter and focal length according to claim 1, wherein said adjusting rod (6) comprises a diopter adjusting piece (61) and a sliding rod (62), said diopter adjusting piece (61) and said sliding rod (62) are coaxially arranged and the ends are screwed together by screw thread, said diopter adjusting piece (61) acts as the upper section of said adjusting rod (6), said sliding rod (62) acts as the middle section of said adjusting rod (6) and the lower section of said adjusting rod (6).

5. A telescope with diopter and focus adjustment mechanism according to claim 4, characterized in that the joint between the diopter adjustment piece (61) and the sliding rod (62) is provided with a stop.

6. A telescope with mechanism for adjusting diopter and focus according to claim 5, characterized in that the stop elements comprise bolts (7), limit keys, welding points, adhesive layers, damping layers.

7. The telescope with diopter and focus adjustment mechanism according to claim 4, wherein said sliding rod (62) is provided with a fastening screw (621) for preventing the fixed end of the pin (7) from coming out of said radial hole.

8. The telescope with diopter and focus adjusting mechanism according to claim 1, wherein said connecting arm (3) further comprises a sealed cavity (31), said sealed cavity (31) is communicated with the inside of lens barrel (2) through an abdicating hole on the side wall of lens barrel (2), and the lower section of said adjusting rod (6) is located in said sealed cavity (31).

9. The telescope with diopter and focus adjusting mechanism according to claim 1, wherein the shaft rod (1) comprises a focusing section (11), a sleeve section (12) which are coaxially arranged, and a shaft shoulder (13) which protrudes outwards along the circumferential direction at the joint of the focusing section (11) and the sleeve section (12), the inner disk sleeve (4) is rotatably sleeved on the focusing section (11), and the connecting arm (3) is sleeved with the sleeve section (12).

10. The telescope with the mechanism for adjusting the diopter and the focal length according to the claim 9, characterized in that the top of the focusing section (11) is provided with a first screw hole, a limit screw (111) is arranged in the first screw hole, and the limit screw (111) is pressed and held on the inner edge of the disc section of the inner disc sleeve (4) through a gasket; the bottom end of the sleeving connection section (12) is provided with a second screw hole, a limiting bolt (121) is arranged in the second screw hole, and a nut of the limiting bolt (121) is pressed on the inner edge of the sleeving connection hole of the connecting arm (3).