CN2775700Y - Improvement of aiming lens focusing hand wheel structure - Google Patents
Improvement of aiming lens focusing hand wheel structure Download PDFInfo
- Publication number
- CN2775700Y CN2775700Y CN 200520054504 CN200520054504U CN2775700Y CN 2775700 Y CN2775700 Y CN 2775700Y CN 200520054504 CN200520054504 CN 200520054504 CN 200520054504 U CN200520054504 U CN 200520054504U CN 2775700 Y CN2775700 Y CN 2775700Y
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- inner sleeve
- knob
- hand wheel
- focusing
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- 238000009434 installation Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims 1
- 230000003287 optical effect Effects 0.000 description 28
- 238000006073 displacement reaction Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model relates to an improved structure of a focusing hand wheel of a sighting lens. The utility model is fixed on a lens barrel and comprises an outer knob cap which is fixedly connected with an inner knob cap. A lower cap body is fixed on the lens barrel and is matched with the outer knob cover. The lower end surface of the inner knob cap is provided with an installing concave hole in an eccentric mode. An inner sleeve which carries the lens is arranged in the lens barrel; a connecting part is arranged on the inner sleeve correspondingly to the installing concave hole. A convex column part is arranged in the installing concave hole, the lower end of the convex column part extends into the lens barrel and is connected with the connecting part along the direction vertical to the axial direction of a shaft of the inner sleeve in a sliding mode, and the connecting mode is the match of deep gutters. The product of the utility model makes use of the matching connection of the deep gutters of the convex column part and the connecting part. Thus the firmness of the utility model is improved, and the failure rate in use is reduced.
Description
Technical Field
The utility model relates to an optical sighting lens especially relates to a knob institutional advancement that carries out focusing in the gun sight.
Background
In the existing optical telescope system, such as the optical aiming lens, in order to realize the resolution of different distances, a focusing structure is generally arranged on a lens barrel, but in the focusing structure of the prior art, a sleeve with a lens or a lens group is generally directly rotated to generate movement along the optical axis direction, and if the telescope system with a large caliber generally adopts a structure that an objective lens moves back and forth and a field lens does not move, the focusing is inconvenient because the objective lens is adjusted. However, in some precise optical telescopic devices, such as an optical sighting lens for a firearm, the lens barrel is generally long, and it is very inconvenient to directly rotate the lens barrel.
And the side focusing knob structure among the prior art can not solve the influence to the lens optical axis that produces when the side knob rotates, can arouse that the optical axis is trembled and the dividing wire center is skew to and adjust the structure itself and influence the upper and lower left and right sides skew of optical axis, influence the hand wheel and normally adjust the effect, if adjust the optical axis earlier and aim back focusing process can make the optical axis of adjusting produce the skew again.
In view of the above-mentioned drawbacks of the prior art, the applicant of the present invention has already filed a patent application, whose basic structure is shown in fig. 1, and is an improvement of a focusing handwheel structure of a sighting telescope, which is fixed on a lens barrel 110 and includes a knob outer cover 120 fixedly connected with a knob inner cover 130; a lower cover 140 fixed on the lens barrel 110 and adapted to the knob cover 120; the lower end surface of the knob inner cover 130 is eccentrically provided with a mounting concave hole 131, an elastic component 132 and a projecting column part 133 are sequentially mounted in the mounting concave hole 131, the lower end of the projecting column part 133 extends into the lens barrel 110, the lower end of the projecting column part 133 is a flat sliding chute 134, and the flat sliding chute 134 is matched with a transverse sliding block 112 arranged on an inner sleeve 111 of a bearing lens group in the lens barrel 110. Thus, when the knob outer cover 120 is rotated, the knob inner cover 130 is linked to rotate, and since the mounting concave hole 131 and the projection column part 133 therein are eccentrically arranged on the knob inner cover 130, the rotation of the knob inner cover 130 will cause the projection column part 133 to displace in the axial direction of the inner sleeve 111 and in the direction perpendicular to the axial direction; the projecting post 133 is slidably engaged with the lateral slider 112 in a direction perpendicular to the axial direction of the inner tube 111, so that displacement perpendicular to the axial direction is eliminated, and only displacement is provided in the axial direction of the inner tube, thereby moving the position of the lens in the inner tube and realizing a convenient and accurate focusing operation.
However, the fit between the flat chute 134 and the lateral slider 112 in the above structure is easily disengaged in use due to the flatness of the flat chute 134; in the above technology, the depth of the flat chute 134 is generally about 1mm, and the width is generally about 4mm, so the ratio of the depth to the width is generally about 25%, and such a structural arrangement makes the gun sight using the technology easily separate the flat chute 134 and the transverse slide block 112 from each other due to vibration during use, especially when there is abrasion between the structures after a period of use, thereby causing a high failure rate of products.
The prior art is therefore deficient and is subject to continued improvement and development.
The utility model discloses the content
An object of the utility model is to provide a gun sight focusing hand wheel institutional advancement, but through the deep groove cooperation mode of improving sliding connection's protruding post portion and interior sleeve connecting portion, focusing was convenient when realizing guaranteeing its steadiness of connecting, reduced the fault rate in the use.
The technical scheme of the utility model as follows:
an improved structure of a focusing hand wheel of a sighting telescope is fixed on a lens cone and comprises
The knob outer cover is fixedly connected with a knob inner cover; and
the lower cover body is fixed on the lens cone and is matched with the outer cover of the knob;
the lower end face of the knob inner cover is eccentrically provided with an installation concave hole; and
the inner sleeve is used for bearing the lens and is arranged in the lens barrel, and a connecting part is arranged on the inner sleeve corresponding to the mounting concave hole; wherein,
and a protruding column part is arranged in the mounting concave hole, the lower end of the protruding column part extends into the lens barrel, the lower end of the protruding column part is connected with the connecting part in a manner that the lower end of the protruding column part is perpendicular to the axial direction of the inner sleeve in a sliding manner, and the connecting mode is deep groove matching.
The structure of the focusing hand wheel is improved, wherein the lower end of the projection column part is provided with a sliding chute, and the inner side of the projection column part forms a vertical wall surface;
the connecting part is a transverse sliding block which can slide along the sliding groove in the direction vertical to the axial direction of the inner sleeve;
the depth-to-width ratio of the chute is not less than 1.
The focusing hand wheel is structurally improved, wherein circular arc-shaped fillets are arranged on two sides of the end of the transverse sliding block.
The structure of the focusing hand wheel is improved, wherein the lower end of the protruding column part is provided with a sliding block;
the connecting part is a transverse sliding groove which can slide on the sliding block along the axial direction perpendicular to the inner sleeve, and the depth-width ratio of the transverse sliding groove is not less than 1.
The focusing hand wheel is structurally improved, wherein arc-shaped fillets are arranged on two sides of the end of the sliding block.
The improved structure of the focusing hand wheel is characterized in that an elastic piece is arranged in the mounting concave hole and used for supporting the protruding column part at the rear end of the protruding column part.
The improved structure of the focusing hand wheel is characterized in that an elastic supporting piece is arranged between the inner sleeve and the outer sleeve and used for supporting the inner sleeve.
The utility model provides an improvement of sighting telescope focusing hand wheel structure, owing to adopted improved side focusing knob structure, set up through outstanding post portion and the cooperation of the deep groove of connecting portion promptly, only in perpendicular to the slidable movement of interior sleeve pipe axial direction, be difficult for breaking away from, strengthened the anti-seismic performance in the use, reduced the fault rate in the use; and the production and the assembly are convenient, and the cost is reduced.
Brief description of the drawings
In the drawings, there is shown in the drawings,
FIG. 1 is a sectional view of a modified focusing hand wheel structure of a sighting telescope previously applied by the applicant;
fig. 2 is a schematic perspective view of an optical sighting telescope with a side focusing structure according to the present invention;
FIG. 3 is a cross-sectional view of the improved structure of the focusing hand wheel of the sighting telescope of the present invention;
fig. 3A is an enlarged schematic view of a portion a of the improved structure of the focusing hand wheel of the sighting telescope of fig. 3;
fig. 4a and 4b are schematic views of the connection structure of the improved structure of the focusing handwheel of the sighting telescope of the present invention according to two preferred embodiments.
Detailed Description
The technical solution and the advantages of the present invention will be made apparent from the following detailed description of the preferred embodiments of the present invention, which is to be read in connection with the accompanying drawings.
The utility model discloses an improvement of sighting telescope focusing hand wheel structure, as shown in fig. 2 and 3, it adopts objective motionless, and the mode of adjustment field lens, this focusing structure are fixed in on a lens cone 110, still include a knob enclosing cover 120, and a knob inner cup 130 of this knob enclosing cover 120 fixedly connected with, the outer peripheral edge radius of this knob enclosing cover is great, the shade in on the knob inner cup 130, the top surface inner wall of this knob enclosing cover 120 is provided with an arc spout 121, and this arc spout 121 sets up around rotation center to correspond and be provided with a spacing lug 141 on lid 140 once. The limiting bump 141 is adapted to the arc-shaped sliding groove 121, and when the knob outer cover 120 is rotated, the limiting bump 141 slides in the arc-shaped sliding groove 121 to limit the rotation angle of the knob outer cover 120, and finally, the front and rear displacement degree of the optical lens is limited, so that the displacement required by focusing is realized.
The lower cover body 140 is fixed on the lens barrel 110 and is adapted to the knob outer cover 120, and the limit protrusion 141 may be integrally disposed with the lower cover body 140 or screwed on the upper side surface of the lower cover body 140 by using a raised head bolt; the upper side of the lower cover 140 extends between the outer periphery of the knob outer cover 120 and the knob inner cover 130, and is completely fixed to the lens barrel 110 for limiting the rotation angle of the knob outer cover, i.e. the focusing range.
A mounting recess 131 is eccentrically formed in a lower end surface of the knob inner cover 130, a protruding column 233 is formed in the mounting recess 131, a lower end of the protruding column 233 extends into the lens barrel 110, a slider 234 is formed at a lower end thereof, and an inner side wall thereof forms a vertical wall surface, as shown in fig. 3 and 4 a; the sliding block 234 is adapted to a connecting portion 212 on an inner sleeve 111 disposed in the lens barrel 110 and carrying a lens group, a transverse sliding slot is disposed on the connecting portion 212, and the sliding block 234 can slide transversely in a direction perpendicular to the axial direction of the inner sleeve along the transverse sliding slot when the knob outer cover 120 drives the knob inner cover 130 to rotate, so that the lens barrel 110 moves axially along the inner sleeve 111 by eccentric rotation of the protruding column portion 233, and the eccentric rotation is completely converted into displacement in the axial direction of the lens barrel, thereby finally realizing a focusing process. The connection portion 212 may be fixed to the inner sleeve 111 by any conventional fixing means, preferably by a bolt, and then reinforced by a glue. The slider 234 is connected to the connecting portion 212 by a deep groove fitting. In this way, the projecting post portion 233 is not separated from the connecting portion 212 in the process of guiding the inner tube 111 to adjust the focus back and forth, and can move only along the lateral sliding groove.
It should be noted that, in the improved structure of the focusing handwheel of the present invention, the matching between the lower end of the protruding column part and the connecting part 212 is interchangeable, that is, as shown in fig. 4b, the lower end of the protruding column part 233 is configured as a sliding slot, both sides of which extend downward, and the inner side wall of which forms a vertical wall; meanwhile, the connecting portion 212 is a transverse slider perpendicular to the axial direction of the inner sleeve, and is slightly loosely fitted with the sliding groove. In this way, the projecting column part cannot be separated from the connecting part and can only move along the transverse sliding block, thereby ensuring the realization of the focusing function.
The deep groove cooperation is that the setting that spout and slider were referred to adopts dark and narrow structure, specific degree of depth and width ratio be greater than 1 can, so can guarantee the sliding fit between slider and the spout, and be difficult to deviate from, reduced the fault rate in the use.
In the deep groove fitting manner, the slider and the sliding groove are mounted on different parts, and therefore, for enlarging the width of the installation, the slider or the sliding groove on the protruding column part 233 is arranged to the outer arc-shaped round corner 310 on both sides, so that the slider and the sliding groove are more smooth in the relative displacement process.
The utility model discloses an among the above-mentioned scheme focusing hand wheel institutional advancement, can set up the elastic component like the spring to the top is held protruding post portion to connecting portion strengthen the steadiness.
Focusing structure, as shown in fig. 2 after having set up two ascending optical axis regulation structures 210, 220 on the lens cone simultaneously, because the adjustment point of optical axis regulation structure is also close with focusing structure position at the interlude of lens cone basically, consequently, also can exert an influence to focusing during the optical axis is adjusted. For example, two optical axis adjusting structures are disposed perpendicular to each other, so that the opposite side and the perpendicular side of the focusing structure of the present invention are respectively disposed with an optical axis adjusting structure, but when the optical axis adjusting structure of the opposite side is adjusting the optical axis, the elastic member 132 in the focusing structure of the present invention is slightly compressed and extended, but the focal length is kept from being affected by the optical axis adjustment; when the optical axis adjusting mechanism on the vertical side is adjusting the optical axis, the sliding block 234 of the protruding column part 233 and the connecting part 212 will move slightly and laterally, but the focal length will be maintained by the focusing structure of the present invention without being affected by the adjustment of the optical axis. Thus, the utility model discloses a stability when focusing structure can realize focusing eliminates the influence to the optical axis to can keep the stability of the focus when the optical axis is adjusted.
The utility model discloses a focusing structure, still be provided with a plurality of locating holes on the lower lid 140, specifically but not limited to can be 12 locating holes, wind the center setting of lid 140 down, mainly will for convenient assembling lid 140 rotates on the mounting hole with the nearest locating hole of optical axis of lens cone moves to fix a position on the optical axis, then will spacing lug is fixed at this a locating hole, has just so saved and may need to rotate the defect that fixed position could be rotated to the locating hole by the great half of a circle under the condition of only a locating hole.
Focusing structure, knob enclosing cover 120 with the fixed mode of knob enclosing cover 130 can use arbitrary one, and is through a lockpin piece 122 fixed connection in this embodiment, lockpin piece 122 is a bolt correspond on the knob enclosing cover 120 and be provided with screw hole 123, and the corresponding position of knob enclosing cover 130 is provided with the lockpin hole, one permits promptly lockpin piece 122 inserts fixed shrinkage pool. The locking pin member 122 is screwed through the screw hole 123 and abuts against the knob inner cover 130, thereby being fixedly coupled to each other. An anti-slip rib 124 is further provided on an outer circumferential side of the knob outer cover 120, so that a force for rotating the knob outer cover 120 at the time of focusing can be facilitated.
The utility model discloses a focusing structure lid 140 down with still be provided with two clamping rings 151, 152 between the knob inner cup 130 to still be provided with nylon gasket 153 under this two clamping rings, this two clamping rings 151, 152 to and nylon gasket 153 can be used for wear-resisting, because knob inner cup 130 with lid 140 will be mutual relative displacement when the focusing down.
Furthermore, focusing structure, knob enclosing cover 120 with still be provided with sealing washer 154 between the lid 140 down for it is sealed dampproofing and dustproof, and enable the rotating resistance of knob even, feel steady. In order to facilitate the focusing person to refer to the adjustment range, an adjustment reference scale mark is further arranged on the knob outer cover 120.
An elastic member 280 is further disposed between the inner sleeve and the outer sleeve for supporting the inner sleeve 111 to reduce vibration in a direction perpendicular to the axial direction of the inner sleeve 111, so as to increase stability.
In summary, the present invention provides an improved structure of a focusing hand wheel for sighting telescope, which is too specific to the above description of the preferred embodiment, and therefore should not be understood as the protection scope of the present invention, which is defined by the appended claims.
Claims (7)
1. An improved structure of a focusing hand wheel of a sighting telescope is fixed on a lens cone and comprises
The knob outer cover is fixedly connected with a knob inner cover; and
the lower cover body is fixed on the lens cone and is matched with the outer cover of the knob;
the lower end face of the knob inner cover is eccentrically provided with an installation concave hole; and
the inner sleeve is used for bearing the lens and is arranged in the lens barrel, and a connecting part is arranged on the inner sleeve corresponding to the mounting concave hole; it is characterized in that the preparation method is characterized in that,
and a protruding column part is arranged in the mounting concave hole, the lower end of the protruding column part extends into the lens barrel, the lower end of the protruding column part is connected with the connecting part in a manner that the lower end of the protruding column part is perpendicular to the axial direction of the inner sleeve in a sliding manner, and the connecting mode is deep groove matching.
2. The improvement of a focusing hand wheel structure according to claim 1, characterized in that the lower end of the projecting column part is a sliding groove, and the inner side of the projecting column part forms a vertical wall surface;
the connecting part is a transverse sliding block which can slide along the sliding groove in the direction vertical to the axial direction of the inner sleeve;
the depth-to-width ratio of the chute is not less than 1.
3. The improvement of the structure of the focusing hand wheel according to claim 2, characterized in that both sides of the end part of the transverse sliding block are provided with circular arc round corners.
4. The improvement of claim 1, wherein the lower end of said projecting post portion is a slider;
the connecting part is a transverse sliding groove which can slide on the sliding block along the axial direction perpendicular to the inner sleeve, and the depth-width ratio of the transverse sliding groove is not less than 1.
5. The improvement of the structure of the focusing hand wheel according to claim 4, characterized in that both sides of the end part of the sliding block are provided with circular arc fillets.
6. The improvement of a focusing hand wheel according to any claim 1 to 5, wherein an elastic member is disposed at a rear end of the projecting column portion in the mounting concave hole for supporting the projecting column portion.
7. The improvement of claim 6, wherein an elastic support is arranged between the inner sleeve and the outer sleeve for supporting the inner sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520054504 CN2775700Y (en) | 2005-02-03 | 2005-02-03 | Improvement of aiming lens focusing hand wheel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520054504 CN2775700Y (en) | 2005-02-03 | 2005-02-03 | Improvement of aiming lens focusing hand wheel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2775700Y true CN2775700Y (en) | 2006-04-26 |
Family
ID=36750017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520054504 Expired - Fee Related CN2775700Y (en) | 2005-02-03 | 2005-02-03 | Improvement of aiming lens focusing hand wheel structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2775700Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963690A (en) * | 2010-08-13 | 2011-02-02 | 北京航天发射技术研究所 | Mechanism for realizing speed-variable focusing of collimator |
| CN102269856A (en) * | 2011-07-12 | 2011-12-07 | 苏州信达光电科技有限公司 | Optical system focusing mechanism |
-
2005
- 2005-02-03 CN CN 200520054504 patent/CN2775700Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963690A (en) * | 2010-08-13 | 2011-02-02 | 北京航天发射技术研究所 | Mechanism for realizing speed-variable focusing of collimator |
| CN102269856A (en) * | 2011-07-12 | 2011-12-07 | 苏州信达光电科技有限公司 | Optical system focusing mechanism |
| CN102269856B (en) * | 2011-07-12 | 2013-11-13 | 苏州信达光电科技有限公司 | Optical system focusing mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |