CN220626745U - Telescopic sleeve structure - Google Patents
Telescopic sleeve structure Download PDFInfo
- Publication number
- CN220626745U CN220626745U CN202322282989.7U CN202322282989U CN220626745U CN 220626745 U CN220626745 U CN 220626745U CN 202322282989 U CN202322282989 U CN 202322282989U CN 220626745 U CN220626745 U CN 220626745U
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- screw rod
- shell
- sleeve structure
- optical element
- lugs
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- 230000003287 optical effect Effects 0.000 claims abstract description 41
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
A telescopic sleeve structure comprises a shell, an optical element mounting rack, a screw rod assembly, a guide assembly and an end cover; the shell is cylindrical, and an inner cavity is formed in the shell; the optical element mounting frame is arranged in the inner cavity of the shell, lugs are arranged on the periphery of the optical element mounting frame, sliding grooves matched with the lugs are formed in the inner wall of the shell, and the screw rod assembly and the guide assembly are respectively arranged in the sliding grooves; the screw rod assembly comprises a screw rod and a screw rod bushing, and two ends of the screw rod are movably arranged on the shell and the end cover through first bearings respectively; the screw rod is provided with a knurled nut; the lugs of the optical element mounting frame are respectively sleeved on the screw rod or the guide shaft. The telescopic sleeve structure in this application has reduced the degree of difficulty of processing and installation, and the cost reduces, and the feel is more smooth when using, and the reading is clear.
Description
Technical Field
The utility model relates to the technical field of optical instruments and equipment, in particular to a telescopic sleeve structure.
Background
Many optical devices are essentially optical systems having a specific function, which are formed by combining and building a plurality of optical elements. In order to realize the functions of the optical system, the relevant optical elements must be installed in the system in a position-adjustable manner, and in actual use, the relative positions of the optical elements are changed to achieve corresponding optical effects.
In many optical systems, the position of an optical element is adjusted at any time by mounting a bracket. Currently, a telescopic structure is one of the mounting brackets for optical systems that are used in many cases. A translating lens group focusing apparatus such as disclosed in CN 214151188U; the lens comprises a lens shell, a lens cone, an adjusting component and an adjusting lens; the adjusting assembly comprises a screw motor, a screw, a sliding block and a supporting assembly, wherein the screw motor is connected with the screw, and the sliding block is matched with the screw; the lens cone is connected with the sliding block; the utility model adopts a common telescopic sleeve type structure, and the screw rod motor can rotate the screw rod, so that the sliding block is driven to slide, the lens barrel and the adjusting lens are driven to move, and finally the focusing purpose is realized. However, the sleeve type structure of the utility model needs to be provided with a miniature motor as a power source, and has the advantages of complex structure, high assembly difficulty and high maintenance cost. In view of this, this application aims at providing a simple structure, and the assembly is easy, convenient to use, the telescopic tube structure of cost lower.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provide a telescopic sleeve structure which is simple in structure, convenient to assemble and low in cost.
The technical scheme of the utility model is as follows: a telescopic sleeve structure comprises a shell, an optical element mounting rack, a screw rod assembly, a guide assembly and an end cover; the shell is cylindrical, and an inner cavity is formed in the shell; one end of the shell is provided with an annular end part, and the diameter of the end part is smaller than that of the shell; the other end of the shell is detachably connected with an end cover; the optical element mounting frame is arranged in the inner cavity of the shell and is coaxially arranged with the shell; a plurality of lugs are arranged on the periphery of the optical element mounting frame, a plurality of sliding grooves which are matched with the lugs one by one are arranged on the inner wall of the shell, and through holes are arranged on the lugs; the screw rod assembly and the guide assembly are respectively arranged in the sliding groove; the screw rod assembly comprises a screw rod and a screw rod bushing, and two ends of the screw rod are movably arranged on the shell and the end cover through first bearings respectively; the knurled nut is arranged on the screw rod, so that the screw rod can be manually driven to rotate conveniently; the guide assembly comprises a guide shaft and a second bearing; the guide shaft is parallel to the screw rod; the second bearing and the screw rod bushing are both arranged in the through hole of the lug, so that the lug of the optical element mounting rack is sleeved on the screw rod or the guide shaft respectively.
Further, the length direction of the chute is parallel to the axial direction of the housing.
Further, the sliding grooves are uniformly distributed on the inner wall of the shell.
Further, the number of lugs and sliding grooves is 3.
Further, be provided with on the lateral wall of shell and observe the notch, observe the length direction of notch and spout direction parallel, and observe notch and one of them spout intercommunication each other.
Furthermore, scales are designed on the side wall of the observation notch. Preferably, the side wall of the observation notch is obliquely arranged, for example, the cross section of the observation notch is designed into a V shape, so that scales on the side wall are more convenient for observation.
Furthermore, the outer surface of the lug provided with the screw rod bushing is also provided with scales, so that the scales are conveniently compared with the scales on the observation notch.
Further, a screw rod assembly is arranged in a chute communicated with the observation notch, and a guide assembly is arranged in other chutes.
Further, the first bearing is a common bearing for enabling the screw rod to rotate in situ, and the second bearing is a linear bearing, so that the optical element mounting frame can conveniently move along the length direction of the guide shaft.
Further, the end is integrally formed with the housing and the end cap is mounted to the housing by screws.
Further, the screw rod is matched with a locking screw, and after the screw rod is adjusted, the screw rod can be fixed through the locking screw to prevent the screw rod from rotating, so that the optical element mounting frame is locked and does not move any more.
Compared with the prior art, the utility model has the beneficial effects that: according to the telescopic sleeve structure, the knurled nuts are arranged on the screw rod, so that the screw rod can be driven manually, a motor is omitted, and the cost is reduced; the guide component adopts a linear bearing and a guide shaft, so that the displacement precision of the optical element mounting frame is ensured, and the hand feeling is more silky; and through setting up observation notch and scale, the user of being convenient for directly observes the removal process of optical element mounting bracket, and regulation and control is more directly perceived convenient. In a word, telescopic sleeve structure in this application has reduced the degree of difficulty of processing and installation, and manufacturing cost reduces, and the feel silky when using, and the reading is clear.
Drawings
FIG. 1 is a schematic perspective view of embodiment 1 of the present utility model;
FIG. 2 is a schematic front view of embodiment 1 of the present utility model;
FIG. 3 is an exploded view of example 1 of the present utility model;
FIG. 4 is a schematic view of the housing in embodiment 1 of the present utility model;
FIG. 5 is a schematic view of an optical component mounting block according to embodiment 1 of the present utility model;
FIG. 6 is a schematic view of an end cap of example 1 of the present utility model;
in the figure: 1-shell, 11-end, 12-chute, 13-observation notch, 2-end cap, 21-adjustment slot, 3-optical element mounting rack, 31-lug, 41-screw, 42-first bearing, 43-screw bushing, 44-knurled nut, 51-guide shaft, 52-second bearing, 6-locking screw.
Detailed Description
The present utility model will be described in further detail with reference to specific examples, wherein methods or functional elements not specifically described are prior art.
Example 1
As shown in fig. 1 to 6, the present embodiment provides a telescopic sleeve structure including a housing 1, an optical element mounting frame 3, a screw 41 assembly, a guide assembly, and an end cap 2; the shell 1 is cylindrical, and an inner cavity is formed in the shell 1; one end of the shell 1 is provided with an annular end part 11, and the diameter of the end part 11 is smaller than that of the shell 1; the other end of the shell 1 is detachably connected with an end cover 2; the optical element mounting frame 3 is arranged in the inner cavity of the shell 1 and is coaxially arranged with the shell 1; 3 lugs 31 are arranged on the periphery of the optical element mounting frame 3, 3 sliding grooves 12 which are matched with the lugs 31 one by one are arranged on the inner wall of the shell 1, and through holes are arranged on the lugs 31; the screw rod 41 assembly and the guide assembly are respectively arranged in one chute 12; the screw rod 41 assembly comprises a screw rod 41 and a screw rod bushing 43, and two ends of the screw rod 41 are movably mounted on the shell 1 and the end cover 2 through first bearings 42 respectively; the screw rod 41 is provided with a knurled nut 44, and the knurled nut 44 is convenient for manually driving the screw rod 41 to rotate; the end cover 2 is provided with an adjusting groove 21, a knurled nut 44 is positioned in the adjusting groove 21, and the guide assembly comprises a guide shaft 51 and a second bearing 52; the guide shaft 51 is parallel to the screw 41; the second bearing 52 and the screw bush 43 are mounted in the through hole of the lug 31, so that the lug 31 of the optical element mounting 3 is respectively sleeved on the screw 41 or the guide shaft 51.
In this embodiment, the length direction of the sliding groove 12 is parallel to the axial direction of the housing 1, and the sliding groove 12 is uniformly distributed circumferentially on the inner wall of the housing 1. An observation notch 13 is provided on the side wall of the housing 1, the length direction of the observation notch 13 is parallel to the direction of the slide grooves 12, the observation notch 13 is communicated with one of the slide grooves 12, and the screw 41 and the optical element mounting frame 3 in the slide groove 12 can be directly observed from the observation notch 13. Graduations are provided on the side walls of the viewing slot 13. The side wall of the observation notch 13 in this embodiment is inclined, so that the scale on the side wall is more convenient for the user to observe.
In this embodiment, a screw 41 is installed in the chute 12 communicating with the observation slot 13, and a guide is installed in the other chute 12. The outer surface of the lug 31 on which the lead screw bushing 43 is mounted is also provided with graduations to facilitate alignment with the graduations on the viewing slot 13.
In this embodiment, the first bearing 42 is a normal bearing, so that the screw 41 can rotate in place, and when the screw 41 rotates, the optical element mounting frame 3 can be driven to move along the direction of the screw 41 by the screw bushing 43, and the second bearing 52 is a linear bearing, so that the optical element mounting frame 3 can slide more when moving along the length direction of the guide shaft 51.
In this embodiment, the end portion 11 is integrally formed with the housing 1, and the end cap 2 is mounted to the housing 1 by screws. The end cap 2 is further provided with various mounting holes for use in cooperation with the screw rod 41, the guide shaft 51 or the screw, respectively.
In this embodiment, one end of the screw 41 is engaged with a locking screw 6, and when the screw 41 is adjusted, the screw 41 is fixed by the locking screw 6, so that the screw 41 cannot rotate, and the optical element mounting frame 3 is locked and cannot move.
The using method of the telescopic sleeve structure in the embodiment is as follows: the user pulls the knurled nut 44 by hand to enable the screw 41 and the knurled nut 44 to synchronously rotate, and as the two ends of the screw 41 are fixed in the first bearing 42, the screw 41 only rotates in situ, the screw bush 43 on the screw 41 moves along the screw 41, the screw bush 43 drives the optical element mounting frame 3 to move when moving, and the moving precision of the optical element mounting frame 3 is ensured under the cooperation of the guide component; during the adjustment, the user can directly observe the movement condition of the optical element mounting frame 3 through the observation notch 13, and when the optical element mounting frame 3 moves to the target position, the screw rod 41 is locked through the locking screw 6, and at this time, the optical element mounting frame 3 is fixed and cannot move.
The above is only a part of embodiments of the present utility model, and it is not intended to limit the present utility model, and it is obvious to those skilled in the art that the present utility model can be combined and modified in various technical features, and it is intended to include the present utility model in the scope of the present utility model without departing from the spirit and scope of the present utility model.
Claims (10)
1. A telescopic sleeve structure, its characterized in that: the device comprises a shell, an optical element mounting rack, a screw rod assembly, a guide assembly and an end cover; the shell is cylindrical, and an inner cavity is formed in the shell; one end of the shell is provided with an annular end part, and the other end of the shell is detachably connected with the end cover; the optical element mounting frame is arranged in the inner cavity of the shell; a plurality of lugs are arranged on the periphery of the optical element mounting frame, a plurality of sliding grooves which are matched with the lugs one by one are arranged on the inner wall of the shell, and through holes are arranged on the lugs; the screw rod assembly and the guide assembly are respectively arranged in the sliding groove; the screw rod assembly comprises a screw rod and a screw rod bushing, and two ends of the screw rod are respectively arranged on the shell and the end cover through first bearings; the screw rod is provided with a knurled nut which is convenient for manually driving the screw rod to rotate; the guide assembly comprises a guide shaft and a second bearing; the guide shaft is parallel to the screw rod; the second bearing and the screw rod bushing are respectively arranged in the through holes of the lugs, so that the lugs of the optical element mounting frame are respectively sleeved on the screw rod or the guide shaft.
2. The telescopic sleeve structure according to claim 1, wherein: the direction of the sliding groove is parallel to the axial direction of the shell.
3. The telescopic sleeve structure according to claim 1, wherein: the sliding grooves are uniformly distributed on the inner wall of the shell.
4. The telescopic sleeve structure according to claim 1, wherein: the number of the lugs and the number of the sliding grooves are 3.
5. The telescoping tube structure according to any one of claims 1-4, wherein: the side wall of the shell is provided with an observation notch, the length direction of the observation notch is parallel to the sliding grooves, and the observation notch is communicated with one of the sliding grooves.
6. The telescoping sleeve structure of claim 5, wherein: a screw rod assembly is arranged in a chute communicated with the observation notch, and guide assemblies are arranged in the rest of the chute.
7. The telescoping sleeve structure of claim 6, wherein: scales are designed on the side wall of the observation notch.
8. The telescoping sleeve structure of claim 7, wherein: the outer surface of the lug for installing the screw rod bushing is provided with scales.
9. The telescopic sleeve structure according to claim 1, wherein: the second bearing is a linear bearing.
10. The telescopic sleeve structure according to claim 1, wherein: the end is integrally formed with the housing and the end cap is mounted to the housing by screws.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202322282989.7U CN220626745U (en) | 2023-08-24 | 2023-08-24 | Telescopic sleeve structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202322282989.7U CN220626745U (en) | 2023-08-24 | 2023-08-24 | Telescopic sleeve structure |
Publications (1)
Publication Number | Publication Date |
---|---|
CN220626745U true CN220626745U (en) | 2024-03-19 |
Family
ID=90235358
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202322282989.7U Active CN220626745U (en) | 2023-08-24 | 2023-08-24 | Telescopic sleeve structure |
Country Status (1)
Country | Link |
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CN (1) | CN220626745U (en) |
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2023
- 2023-08-24 CN CN202322282989.7U patent/CN220626745U/en active Active
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