Eyepiece assembly with switchable connector

Abstract

The utility model provides an eyepiece assembly with a switchable joint, which comprises an eyepiece barrel body, a switchable joint piece is arranged at the first end of the eyepiece barrel body, and the switchable joint piece comprises an inner joint piece and an outer joint piece; the inner joint piece comprises an end cover base and a first cylinder joint which is integrally formed and arranged on the end cover base, the first cylinder joint is communicated with the interior of the eyepiece barrel, and an annular groove is formed in the end cover base around the first cylinder joint; the outer connector piece comprises a second cylinder connector, and the first end of the second cylinder connector is inserted into the annular groove and detachably connected with the annular groove in a threaded mode. According to the utility model, the interface of the eyepiece assembly is provided with the switchable joint, and the sizes of the first cylinder joint and the second cylinder joint are configured to be the sizes of common eyepiece interfaces sold in the market, so that the eyepiece assembly can be used on different optical instruments.

Description

Technical Field

[0001] The utility model relates to the field of optical instruments, in particular to an eyepiece assembly with a switchable joint. Background Art

[0002] The eyepiece is an important component of an optical instrument and is generally replaceable. In order to save the development cost of optical instruments, optical instruments of different sizes developed by optical instrument manufacturers may share a set of eyepiece systems. The difference between the eyepiece systems of optical instruments of different sizes may only be the different interface sizes used by the instrument eyepieces. The eyepieces of optical instruments in the prior art usually only have one interface specification and cannot be universal in different interface sizes.

[0003] Therefore, the prior art still needs to be improved and developed. Utility Model Content

[0004] The utility model provides an eyepiece assembly with a switchable joint, aiming to solve the technical problems mentioned in the background technology of the eyepiece in the prior art.

[0005] The technical solution of the utility model is as follows:

[0006] An eyepiece assembly with a switchable joint comprises an eyepiece barrel, a first end of which is provided with a switchable joint member, the switchable joint member comprising an inner joint member and an outer joint member; the inner joint member comprises an end cap base and a first cylindrical joint integrally formed on the end cap base, the first cylindrical joint is connected to the interior of the eyepiece barrel, an annular groove is provided on the end cap base around the first cylindrical joint; the outer joint member comprises a second cylindrical joint, a first end of the second cylindrical joint is inserted into the annular groove and is detachably connected to the annular groove threadably.

[0007] In an optional embodiment of the utility model, a threaded base is extended from the first end of the second cylindrical joint, a first thread is provided on the outer wall of the threaded base, a second thread is provided on the first groove wall of the annular groove corresponding to the first thread, and the threaded base and the annular groove are detachably connected via the first thread and the second thread.

[0008] In an optional embodiment of the present invention, the diameter of the screwed base is larger than the diameter of the second cylindrical joint, and the screwed base and the second cylindrical joint form a first step portion at a transition position; after the screwed base is completely screwed into the annular groove, the first step portion is flush with the end surface of the end cover base.

[0009] In an optional embodiment of the present invention, the first end of the first cylindrical joint is integrally formed with the end cover base via a second step portion, and the second end of the first cylindrical joint is flush with the second end of the second cylindrical joint.

[0010] In an optional implementation manner of the present invention, the axes of the first cylindrical joint and the second cylindrical joint are arranged to coincide with each other.

[0011] In an optional implementation of the utility model, the first end of the eyepiece barrel is internally threadedly connected to a sleeve connecting seat, and the end cover base is connected to the sleeve connecting seat via a fastener passing through the annular groove.

[0012] In an optional embodiment of the utility model, a scale ring for facilitating zoom adjustment is provided on the outer peripheral surface of the eyepiece barrel adjacent to the end cover base, and a groove positioning bead focusing matching mechanism is provided between the contact surface of the end cover base and the eyepiece barrel.

[0013] In an optional implementation of the present invention, an eye-stop is provided at the second end of the eyepiece barrel, and the interior of the eye-stop is hollowed out and communicated with the interior of the eyepiece barrel.

[0014] In an optional implementation of the utility model, a double-sided concave lens is arranged in the eye-stopping member, and a single-sided convex lens is arranged in the first cylindrical joint.

[0015] In an optional embodiment of the present invention, the diameter specification of the first cylindrical joint is 1.25 inches, and the diameter specification of the second cylindrical joint is 2 inches.

[0016] Beneficial effects are as follows: the utility model provides an eyepiece assembly with a switchable joint, including an eyepiece barrel, a first end of the eyepiece barrel is provided with a switchable joint member, the switchable joint member includes an inner joint member and an outer joint member; the inner joint member includes an end cap base and a first cylindrical joint integrally formed on the end cap base, the first cylindrical joint is connected to the interior of the eyepiece barrel, an annular groove is provided on the end cap base around the first cylindrical joint; the outer joint member includes a second cylindrical joint, the first end of the second cylindrical joint is inserted into the annular groove and is detachably connected to the annular groove thread. The interface of the eyepiece assembly of the utility model has a switchable joint, and by configuring the size specifications of the first cylindrical joint and the second cylindrical joint to the common eyepiece interface size on the market, the eyepiece assembly of the utility model can be interchanged on different optical instruments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic diagram of the overall structure of an eyepiece assembly with a switchable joint.

[0018] Figure 2 The utility model is an exploded view of an eyepiece assembly with a switchable joint.

[0019] Figure 3 The utility model is a cross-sectional view of the installation structure of a switchable connector.

[0020] Figure 4 The utility model is a schematic diagram of the contact surface structure on the scale ring side of the eyepiece barrel.

[0021] Figure 5 The utility model is a schematic diagram of the contact surface structure of an end cover base.

[0022] Figure 6 The utility model is a schematic diagram of the cross-section internal structure of an eyepiece assembly with a switchable joint.

[0023] The reference numerals in the figures are as follows:

[0024] 10-eyepiece barrel; 20-switchable joint piece; 30-internal joint piece; 40-external joint piece; 50-end cover base; 60-first cylindrical joint; 70-annular groove; 80-second cylindrical joint; 90-screw base; 100-first step portion; 110-second step portion; 120-sleeve connecting seat; 130-scale ring; 140-fastener; 150-groove positioning bead focusing matching mechanism; 151-groove; 152-positioning bead; 160-eye support piece; 170-double-sided concave lens; 180-single-sided convex lens. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] Reference throughout the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, when the phrases "in one embodiment" or "in some embodiments" appear in various places throughout the specification, not all references are to the same embodiment. Furthermore, in one or more embodiments, the particular features, structures, or characteristics may be combined in any suitable manner.

[0029] See also Figure 1 The utility model provides an eyepiece assembly with a switchable joint, including an eyepiece barrel 10, a first end (the lower end in the figure) of the eyepiece barrel 10 is provided with a switchable joint member 20, and the switchable joint member 20 includes an inner joint member 30 and an outer joint member 40.

[0030] See also Figure 2 and Figure 3 The internal joint part 30 includes an end cover base 50 and a first cylindrical joint 60 integrally formed on the end cover base 50. Exemplarily, the first cylindrical joint 60 is centrally arranged on the end cover base 50, and the first cylindrical joint 60 is connected to the interior of the eyepiece barrel 10 to facilitate the transmission of light between the eyepiece barrel 10 and the first cylindrical joint 60; an annular groove 70 is arranged on the end cover base 50 around the first cylindrical joint 60. Exemplarily, the annular groove 70 is concentrically arranged with the first cylindrical joint 60, that is, the center of the annular groove 70 is located on the central axis of the first cylindrical joint 60.

[0031] See also Figure 2 and Figure 3The external joint member 40 includes a second cylindrical joint 80. Exemplarily, the second cylindrical joint 80 is arranged to coincide with the axis of the first cylindrical joint 60, that is, the second cylindrical joint 80 and the first cylindrical joint 60 share a central axis, and the first end of the second cylindrical joint 80 is inserted into the annular groove 70 and is threadedly detachably connected to the annular groove 70. In the present utility model, the second cylindrical joint 80 can be threadedly detachably connected to the annular groove 70 by respectively providing threads on the outer ring side wall of the annular groove 70 and the outer side wall of the second cylindrical joint 80 to achieve threaded detachable connection, or by respectively providing threads on the inner ring side wall of the annular groove 70 and the inner side wall of the second cylindrical joint 80 to achieve threaded detachable connection. There are two common sizes of eyepiece sockets for optical instruments on the market, namely 1.25 inches and 2 inches. In order to better achieve the compatibility of the eyepiece of the utility model with various optical instruments, illustratively, the diameter specification of the first cylindrical joint 60 is set to 1.25 inches, and the diameter specification of the second cylindrical joint 80 is set to 2 inches. In the utility model, when a 2-inch joint is needed, the second cylindrical joint 80 is connected, and when a 1.25-inch joint is needed, the second cylindrical joint 80 only needs to be removed.

[0032] See also Figure 2 and Figure 3 In another optional embodiment of the present invention, a threaded base 90 is extended from the first end (the upper end in the figure) of the second cylindrical joint 80. The threaded base 90 is separately provided for threaded detachable connection to facilitate the selection of the insertion direction when the second cylindrical joint 80 is assembled. In order to facilitate threaded connection, one form of threaded setting can be that a first thread is provided on the outer wall of the threaded base 90, and a second thread is provided on the first groove wall (i.e., the outer groove wall) of the annular groove 70 corresponding to the first thread, and the threaded base 90 is detachably connected to the annular groove 70 through the first thread and the second thread; of course, in another embodiment of the present invention, a first thread can also be provided on the inner wall of the threaded base 90, and a second thread is provided on the second groove wall (i.e., the inner groove wall) of the annular groove 70 corresponding to the first thread.

[0033] See also Figure 3In an optional embodiment of the utility model, the diameter of the screw base 90 is greater than the diameter of the second cylindrical joint 80. In this embodiment, the thread condition of the screw base 90 can be better observed and the cleaning of the threaded connection end is convenient. The screw base 90 and the second cylindrical joint 80 form a first step portion 100 at the transition position (bending position). The first step portion 100 can abut against the interface part of the optical instrument after the second cylindrical joint 80 is inserted into the optical instrument, which is convenient for the stability of the second cylindrical joint 80; after the screw base 90 is completely screwed into the annular groove 70, the first step portion 100 is flush with the end face of the end cover base 90. In this embodiment, the screw base 90 is more beautiful after the end cover base 50, and it can also better facilitate the abutment of the interface part of the optical instrument.

[0034] See also Figure 3 In an optional embodiment of the present invention, the first end (the upper end in the figure) of the first cylindrical joint 60 is integrally formed with the end cover base 50 through the second step portion 110, and the second end (the lower end in the figure) of the first cylindrical joint 60 is flush with the second end of the second cylindrical joint 80. In this embodiment, the second step portion 110 can increase the gap difference between the first cylindrical joint 60 and the second cylindrical joint 80, so as to facilitate some dirt in the annular groove 70 to fall out from the gap between the first cylindrical joint 60 and the second cylindrical joint 80. In addition, increasing the gap between the first cylindrical joint 60 and the second cylindrical joint 80 can also better prevent the second cylindrical joint 80 from colliding with the first cylindrical joint 60 during disassembly and assembly, thereby avoiding damage to the first cylindrical joint 60.

[0035] See also Figure 3 In an optional embodiment of the present invention, the first end of the eyepiece barrel 10 is internally threadedly connected with a sleeve connection seat 120, and the end cap base 50 is connected to the sleeve connection seat 120 via a fastener 130 passing through the annular groove 70. In this embodiment of the present invention, the eyepiece assembly also has a function of adjusting the focal length. Specifically, since the end cap base 50 is installed on the sleeve connection seat 120, when the end cap base 50 is rotated, the sleeve connection seat 120 will also rotate, and the sleeve connection seat 120 will rotate and then move up and down with the eyepiece barrel 10, and the first cylindrical joint 60 will also move up and down.

[0036] See also Figure 2In an optional embodiment of the present invention, a scale ring 140 is provided on the outer peripheral surface of the eyepiece barrel 10 adjacent to the end cap base 50 for facilitating zoom adjustment, and a groove positioning bead focusing matching mechanism 150 is provided between the contact surface of the end cap base 50 and the eyepiece barrel 10. In this embodiment of the present invention, an exemplary scenario may be that a plurality of focal length scales are marked on the scale ring 130, see Figure 4 A groove 151 is provided on the contact surface of the eyepiece barrel 10 corresponding to each focal length scale, see Figure 5 A positioning bead 152 is provided on the contact surface of the end cover base 50. The positioning bead 152 is elastically arranged in a preset hole on the contact surface of the end cover base 50. When the end cover base 50 rotates, each time the positioning bead 152 falls into a groove 151, the focal length state of the eyepiece assembly at this time can be made to correspond exactly to the eyepiece focal length under the focal length scale corresponding to the groove 151 through the pre-designed threaded connection travel distance.

[0037] See also Figure 1 and Figure 6 In an optional embodiment of the present invention, the second end 9 (the upper end in the figure) of the eyepiece barrel 10 is provided with an eyepiece 160, the interior of the eyepiece 160 is hollowed out and communicated with the interior of the eyepiece barrel 10, so as to form a light path between the eyepiece 160 and the eyepiece barrel 10. In an optional embodiment of the present invention, a biconcave lens 170 is provided in the eyepiece, and a single convex lens 180 is provided in the first cylindrical joint. The biconcave lens 170 and the single convex lens 180 constitute a light path component in the eyepiece assembly.

[0038] In summary, the utility model provides an eyepiece assembly with a switchable joint, including an eyepiece barrel, a first end of the eyepiece barrel is provided with a switchable joint member, the switchable joint member includes an inner joint member and an outer joint member; the inner joint member includes an end cap base and a first cylindrical joint integrally formed on the end cap base, the first cylindrical joint is connected to the interior of the eyepiece barrel, and an annular groove is provided on the end cap base around the first cylindrical joint; the outer joint member includes a second cylindrical joint, the first end of the second cylindrical joint is inserted into the annular groove and is detachably connected to the annular groove thread. The interface of the eyepiece assembly of the utility model has a switchable joint, and by configuring the size specifications of the first cylindrical joint and the second cylindrical joint to the common eyepiece interface size on the market, the eyepiece assembly of the utility model can be replaced on different optical instruments.

[0039] Although the present invention has been disclosed as above in terms of preferred embodiments, the above preferred embodiments are not intended to limit the present invention. A person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. An eyepiece assembly with a switchable joint, comprising an eyepiece barrel, characterized in that: A switchable joint piece is provided at the first end of the eyepiece barrel, and the switchable joint piece includes an inner joint piece and an outer joint piece; the inner joint piece includes an end cover base and a first cylindrical joint integrally formed on the end cover base, the first cylindrical joint is connected to the interior of the eyepiece barrel, and an annular groove is provided on the end cover base around the first cylindrical joint; the outer joint piece includes a second cylindrical joint, the first end of the second cylindrical joint is inserted into the annular groove and is detachably connected to the annular groove threadably.

2. The eyepiece assembly with a switchable joint according to claim 1, characterized in that: A threaded base is extended from the first end of the second cylindrical joint, a first thread is provided on the outer wall of the threaded base, a second thread is provided on the first groove wall of the annular groove corresponding to the first thread, and the threaded base and the annular groove are detachably connected via the first thread and the second thread.

3. The eyepiece assembly with a switchable joint according to claim 2, characterized in that: The diameter of the screw base is larger than the diameter of the second cylindrical joint, and the screw base and the second cylindrical joint form a first step portion at a transition position; after the screw base is completely screwed into the annular groove, the first step portion is flush with the end surface of the end cover base.

4. The eyepiece assembly with a switchable joint according to claim 3, characterized in that: The first end of the first cylindrical joint is integrally formed with the end cover base via a second step portion, and the second end of the first cylindrical joint is flush with the second end of the second cylindrical joint.

5. The eyepiece assembly with a switchable joint according to claim 4, characterized in that: The axes of the first cylindrical joint and the second cylindrical joint are arranged to coincide with each other.

6. The eyepiece assembly with a switchable joint according to claim 1, characterized in that: The first end of the eyepiece barrel is internally threadedly connected with a sleeve connecting seat, and the end cover base is connected to the sleeve connecting seat via a fastener passing through the annular groove.

7. The eyepiece assembly with a switchable joint according to claim 6, characterized in that: A scale ring for facilitating zoom adjustment is arranged on the outer peripheral surface of the eyepiece barrel body adjacent to the end cover base, and a groove positioning bead focusing matching mechanism is arranged between the contact surface of the end cover base and the eyepiece barrel body.

8. The eyepiece assembly with a switchable joint according to claim 1, characterized in that: An eye-stop is disposed at the second end of the eyepiece barrel, and the interior of the eye-stop is hollowed out and communicated with the interior of the eyepiece barrel.

9. The eyepiece assembly with a switchable joint according to claim 8, characterized in that: A double-sided concave lens is arranged in the eye-stop, and a single-sided convex lens is arranged in the first cylindrical joint.

10. The eyepiece assembly with a switchable joint according to any one of claims 1 to 9, characterized in that: The diameter specification of the first cylindrical joint is 1.25 inches, and the diameter specification of the second cylindrical joint is 2 inches.

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