CN220438663U

CN220438663U - Zoom magnifier

Info

Publication number: CN220438663U
Application number: CN202322111825.8U
Authority: CN
Inventors: 徐焕钊; 徐建信
Original assignee: Wenzhou Huaxin Optical Co ltd
Current assignee: Wenzhou Huaxin Optical Co ltd
Priority date: 2023-08-07
Filing date: 2023-08-07
Publication date: 2024-02-02
Anticipated expiration: 2033-08-07

Abstract

The application relates to the field of magnifiers, and particularly discloses a zoom magnifier. The zoom magnifier comprises a lens frame, lenses connected to the lens frame and a handle connected to the lens frame, wherein the lenses comprise two elastic diaphragms, a liquid injection cavity for filling transparent liquid is formed between the two elastic diaphragms, the lens frame comprises a convex ring and a pressing ring connected to two sides of the convex ring, the elastic diaphragms are arranged between the pressing ring and the convex ring, the handle comprises a liquid injection rod connected with the convex ring and an adjusting piece in threaded connection with the liquid injection rod, the liquid injection rod is provided with a liquid injection hole, the convex ring is provided with a perforation communicated with the liquid injection hole, the perforation is communicated with the liquid injection cavity, and the adjusting piece is used for blocking the liquid injection hole and can move along the axial direction of the liquid injection rod. The magnifier has the effects of simple zooming and applicability to multiple scenes.

Description

Zoom magnifier

Technical Field

The present application relates to the field of magnifiers, and in particular to a zoom magnifier.

Background

Magnifiers are simple visual optics used to view tiny details of objects, converging lenses with a focal length much smaller than the apparent distance of the eye. According to the classification of the users, the system can be divided into a reading magnifier for the elderly, a magnifying glass for children, an outdoor portable magnifier, a professional identification measuring magnifier, a medical magnifier and the like.

Among the prior art, magnifying glass includes the picture frame, sets up the lens in the picture frame, connects in the handle of picture frame. The lens is a convex lens, and when the apparent distance is fixed, the smaller the radius of curvature of the convex lens is, the smaller the focal length is, and the larger the magnification is.

The technical scheme still has the following defects: because different application scenes need to use magnifying glass with different focal lengths, and the focal length of lenses in the magnifying glass is fixed, namely the magnification is fixed, the application requirements of different scenes cannot be met, and inconvenience is caused to a user.

Disclosure of Invention

In order to achieve simple zooming of a magnifier, the present application provides a zoom magnifier.

The application provides a zoom magnifying glass adopts following technical scheme:

the utility model provides a zoom magnifying glass, includes the picture frame, connects in the lens of picture frame, connects in the handle of picture frame, the lens includes two elastic diaphragm, two be provided with the notes liquid chamber that is used for filling transparent liquid between the elastic diaphragm, the picture frame includes the bulge loop and connects in the clamping ring of bulge loop both sides, elastic diaphragm sets up between clamping ring and bulge loop, the handle include annotate the liquid pole and with annotate liquid pole threaded connection's regulating part with the bulge loop connection, annotate the liquid pole and offered annotate the liquid hole, the perforation with annotate the liquid hole intercommunication has been seted up to the bulge loop, perforation and annotate the liquid chamber intercommunication, the regulating part is used for shutoff annotating the liquid hole and can follow annotate liquid pole axial displacement.

Through adopting above-mentioned technical scheme, during the installation, annotate liquid pole and regulating part and constitute the water storage region, twist soon through the regulating part for the regulating part is along annotating liquid pole axial displacement, and then makes transparent liquid flow into annotate the liquid chamber through annotating liquid hole and perforation, changes the volume size of annotating the intraductal transparent liquid of liquid, then can change the focus size of magnifying glass. When the volume of the transparent liquid in the liquid injection cavity is increased, the surface bending degree of the elastic membrane is increased, the curvature radius is reduced, the focal length is reduced, and the magnification of the magnifying glass is increased; when the volume of the transparent liquid in the liquid injection cavity is reduced, the surface bending degree of the elastic membrane is reduced, the curvature radius is increased, the focal length is increased, and the magnification of the magnifying glass is reduced. The elastic membrane is tightly connected with the glasses frame in a clamping mode by the pressing ring, so that transparent liquid is prevented from exuding.

Optionally, the convex ring comprises a central ring arranged between the two elastic diaphragms and a side ring connected to the outer side of the central ring, and the compression ring is arranged on the inner side of the side ring.

Through adopting above-mentioned technical scheme, center ring supplies elastic membrane edge to place to center ring and limit ring form T type region, make sealed effect better.

Optionally, the compression ring is in threaded connection with the convex ring.

By adopting the technical scheme, the connection structure of the compression ring and the convex ring is simple and reliable. Secondly, the compression ring and the convex ring are convenient to assemble and disassemble, and the elastic membrane is easy to replace.

Optionally, a blind hole for clamping in a tool is formed in one side, away from the elastic membrane, of the pressing ring.

Through adopting above-mentioned technical scheme, because rely on manual screwing can't realize the zonulae occludens of clamping ring and bulge loop, consequently clamp into the blind hole through appurtenance and carry out screwing, can realize clamping ring and bulge loop fastening.

Optionally, a bump is connected to a side of the pressure ring facing away from the elastic membrane.

Through adopting above-mentioned technical scheme, the lug gives the stress point that the clamping ring was screwed in, need not to realize the fastening of clamping ring and bulge loop through appurtenance.

Optionally, the compression ring is in interference connection with the convex ring.

By adopting the technical scheme, the compression ring and the convex ring are fastened and connected, and relative movement between the compression ring and the convex ring is not allowed, so that the tightness of the mirror frame is ensured.

Optionally, annotate the liquid pole including being close to the first notes liquid pole of bulge loop one side and keeping away from the second notes liquid pole of bulge loop one side, first notes liquid pole outer wall is provided with the external screw thread, the regulating part include with first notes liquid pole screw thread complex screwed ring and cup joint in the sealed section of thick bamboo in the second notes liquid pole outside, screwed ring and sealed section of thick bamboo fixed connection.

By adopting the technical scheme, the length of the external thread is the adjustable distance, and the focal length is changed within the adjustable distance. After the water injection in the liquid injection rod, the elastic diaphragm and the regulating piece is completed, the regulating piece is connected with the liquid injection rod immediately, and when the first liquid injection rod and the threaded ring start to rotate, the transparent liquid in the second regulating piece moves into the elastic diaphragm due to pressure. When the required magnification of the magnifier is larger, the adjusting piece is screwed towards the direction close to the convex ring; when the required magnification of the magnifier is smaller, the adjusting piece is rotated away from the convex ring.

Optionally, an annular groove is formed in the outer side of one end, far away from the convex ring, of the second liquid injection rod, and a sealing ring is arranged in the annular groove.

Through adopting above-mentioned technical scheme, when regulating part removed, the sealing ring prevented that transparent liquid from flowing out through annotating the space between liquid pole and the regulating part, reinforcing handle's leakproofness.

Optionally, the outer wall of the adjusting piece is provided with anti-skid patterns.

By adopting the technical scheme, the friction force between the adjusting piece and the hand can be increased by the anti-skid patterns, so that on one hand, the magnifying glass is convenient to hold by the hand after the friction force is increased, and the magnifying glass is not easy to drop accidentally; on the other hand, the friction force is improved so as to facilitate the screwing-in or screwing-out of the adjusting piece.

Optionally, the inner diameter of the perforation is smaller than the inner diameter of the liquid injection hole.

By adopting the technical scheme, the change of the focal length is controlled more finely.

In summary, the present application has the following beneficial effects:

transparent liquid is filled in the elastic membrane and the handle, and the simple zooming of the magnifier can be realized by screwing or unscrewing the adjusting piece, so that the application requirements of different scenes are met.

Drawings

Fig. 1 is a schematic structural view of a zoom magnification lens of embodiment 1 of the present application;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is an exploded schematic view of a zoom magnifier according to embodiment 1 of the present application;

fig. 4 is a schematic structural view of a zoom magnification lens of embodiment 2 of the present application;

fig. 5 is an exploded schematic view of a zoom magnification lens of embodiment 3 of the present application.

Reference numerals illustrate: 1. a frame; 11. a convex ring; 111. perforating; 112. a center ring; 113. an edge ring; 12. a compression ring; 121. a blind hole; 122. a bump; 2. a lens; 21. an elastic membrane; 22. a liquid injection cavity; 3. a handle; 31. a liquid injection rod; 311. a liquid injection hole; 312. a first liquid injection rod; 3121. an external thread; 313. a second liquid injection rod; 3131. an annular groove; 3132. a seal ring; 32. an adjusting member; 321. a threaded ring; 322. a sealing cylinder; 323. anti-skid lines.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-5.

Example 1:

embodiment 1 of the application discloses a zoom magnifier.

Referring to fig. 1 and 2, the zoom magnifier includes a frame 1, lenses 2 fixedly connected to the frame 1, and a handle 3 fixedly connected to the frame 1. The lens 2 comprises two elastic diaphragms 21, a liquid injection cavity 22 for filling transparent liquid is arranged between the two elastic diaphragms 21, and the curvature radius of the lens 2 can be adjusted by adjusting the volume of the transparent liquid in the liquid injection cavity 22, so that the magnification of the magnifying glass can be changed. The transparent liquid is preferably purified water, and can also be the rest.

Referring to fig. 2 and 3, the lens frame 1 includes a convex ring 11 and a compression ring 12 connected to the convex ring 11, the convex ring 11 includes a central ring 112 and a side ring 113 fixedly connected to the outer side of the central ring 112, and edges of two elastic diaphragms 21 respectively abut against two opposite sides of the central ring 112. The width of the side ring 113 is larger than that of the center ring 112, and the center ring 112 is positioned at the middle of the inner side of the side ring 113, so that the convex ring 11 has a T-shaped cross section. The compression ring 12 is fixedly connected to two ends of the inner side of the side ring 113, and the edge of the elastic membrane 21 is arranged between the compression ring 12 and the center ring 112, so that the inner diameters and the outer diameters of the compression ring 12 and the center ring 112 are equal.

Threads are arranged on the inner side of the side ring 113 and the outer side of the pressing ring 12, and the convex ring 11 and the pressing ring 12 are fixedly connected through the threads. The side of the pressure ring 12 facing away from the elastic membrane 21 is provided with a blind hole 121. After the convex ring 11, the elastic membrane 21 and the pressing ring 12 are assembled, the pressing ring 12 is twisted first, and finally the pressing ring 12 is rotated by clamping a tool into the blind hole 121, so that the pressing ring 12 and the convex ring 11 are connected and fastened, and the tightness of the elastic membrane 21 is enhanced.

Referring to fig. 2 and 3, the handle 3 includes a liquid injection rod 31 fixedly connected to the collar 11 and an adjustment member 32 screw-connected to the liquid injection rod 31, and the adjustment member 32 is axially movable along the liquid injection rod 31. The liquid injection rod 31 is provided with a liquid injection hole 311, the liquid injection hole 311 axially penetrates through the liquid injection rod 31, the convex ring 11 is provided with a perforation 111 communicated with the liquid injection hole 311, the perforation 111 is communicated with the liquid injection cavity 22, and the inner diameter of the perforation 111 is smaller than the inner diameter of the liquid injection hole 311. When the transparent liquid is filled, the transparent liquid is injected through the injection hole 311 and flows between the elastic films 21 through the through holes 111.

The liquid injection rod 31 comprises a first liquid injection rod 312 arranged close to one side of the convex ring 11 and a second liquid injection rod 313 arranged far away from one side of the convex ring 11, and an external thread 3121 is arranged on the outer wall of the first liquid injection rod 312. The adjusting member 32 includes a threaded ring 321 and a sealing cylinder 322 fixedly connected to the threaded ring 321, wherein the threaded ring 321 has a length close to that of the first liquid injection rod 312, and the threaded ring 321 is screwed to the outside of the first liquid injection rod 312. The length of the sealing cylinder 322 is close to the length of the second liquid injection rod 313, the threaded ring 321 is sleeved on the outer side of the second liquid injection rod 313, and one end far away from the threaded ring 321 is closed, so that transparent liquid in the magnifier cannot flow out after the adjusting piece 32 is connected with the liquid injection rod 31. The length of the external thread 3121 is an adjustable distance within which the focal length varies. When the required magnification of the magnifier is larger, the adjusting piece 32 is screwed towards the direction approaching the convex ring 11; conversely, the adjustment member 32 is rotated away from the collar 11.

Referring to fig. 3, an annular groove 3131 is formed on the outer side of one end of the second liquid injection rod 313, which is far away from the convex ring 11, and a sealing ring 3132 is arranged in the annular groove 3131. The sealing ring 3132 can deform and protrude relative to the surface of the second liquid injection rod 313, so as to be abutted against the inner wall of the adjusting member 32, thereby avoiding the seepage of transparent liquid and enhancing the sealing performance. The outer wall of the adjusting member 32 is provided with a plurality of anti-slip threads 323 along the axial circumference, so that the friction force between the adjusting member 32 and the hand can be increased, and the screwing-in or unscrewing of the adjusting member 32 can be easily realized.

The implementation principle of the zoom magnifier of embodiment 1 of the present application is: the convex ring 11, the elastic membrane 21 and the pressing ring 12 are assembled in sequence, the pressing ring 12 and the convex ring 11 are connected through threads, and the convex ring 11 is clamped into the blind hole 121 to rotate by means of a tool, so that a sealing area is formed through fastening connection. The filling rod 31 is inverted first, so that purified water flows into the filling cavity 22 along the filling hole 311 and the perforation 111, after the internal bubbles are completely removed, the filling hole 311 is filled with purified water, and then the adjusting piece 32 filled with purified water is connected with the filling rod 31. When the external thread 3121 and the thread ring 321 are screwed, the purified water moves into the liquid injection cavity 22, and the magnification of the magnifying glass increases; conversely, the magnification of the magnifier is reduced.

Example 2:

the difference from embodiment 1 is that the structure of the pressing ring 12 is different.

Referring to fig. 4, the press ring 12 is not provided with a blind hole 121, one side of the press ring 12 away from the elastic membrane 21 is fixedly connected with a bump 122, the elastic membrane 21 is arranged between the press ring 12 and the convex ring 11, the bump 122 gives a stress point for screwing the press ring 12, and the press ring 12 and the convex ring 11 can be fastened without an auxiliary tool.

The assembly process of the zoom magnifier of embodiment 2 of the present application is as follows: the convex ring 11, the elastic membrane 21 and the pressing ring 12 are assembled in sequence, and the screwing convex blocks 122 drive the pressing ring 12 to rotate, so that the pressing ring 12 and the convex ring 11 are fastened.

Example 3:

the difference from embodiment 1 is that the structure of the pressing ring 12 and the convex ring 11 is different.

Referring to fig. 5, no threads are arranged in the press ring 12 and the convex ring 11, no blind holes 121 are arranged in the press ring 12, the outer diameter of the press ring 12 is slightly larger than the inner diameter of the convex ring 11, and the press ring 12 and the convex ring 11 are tightly connected by means of interference after being assembled. The elastic diaphragm 21 is arranged between the press ring 12 and the convex ring 11, the press-in method of the press machine enables the press ring 12 to deform, and pressure is generated between the matching surfaces of the press ring 12 and the convex ring 11, so that the effect of interference connection is achieved.

The assembly process of the zoom magnifier of embodiment 3 of the present application is as follows: the convex ring 11, the elastic membrane 21 and the compression ring 12 are assembled in sequence, and the compression ring 12 is pressed in through a press, so that interference connection of the convex ring 11 and the compression ring 12 can be realized.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a zoom magnifying glass, includes picture frame (1), connects lens (2) in picture frame (1), connects in handle (3) of picture frame (1), its characterized in that: the lens (2) comprises two elastic diaphragms (21), a liquid injection cavity (22) for filling transparent liquid is arranged between the two elastic diaphragms (21), the lens frame (1) comprises a convex ring (11) and a pressing ring (12) connected to two sides of the convex ring (11), the elastic diaphragms (21) are arranged between the pressing ring (12) and the convex ring (11), the handle (3) comprises a liquid injection rod (31) connected with the convex ring (11) and an adjusting piece (32) in threaded connection with the liquid injection rod (31), the liquid injection rod (31) is provided with a liquid injection hole (311), the convex ring (11) is provided with a perforation (111) communicated with the liquid injection hole (311), the perforation (111) is communicated with the liquid injection cavity (22), and the adjusting piece (32) is used for blocking the liquid injection hole (311) and can axially move along the liquid injection rod (31).

2. A zoom magnifier according to claim 1, wherein: the convex ring (11) comprises a center ring (112) arranged between the two elastic diaphragms (21) and an edge ring (113) connected to the outer side of the center ring (112), and the compression ring (12) is arranged on the inner side of the edge ring (113).

3. A zoom magnifier according to claim 1, wherein: the compression ring (12) is in threaded connection with the convex ring (11).

4. A zoom magnifier according to claim 3, wherein: one side of the compression ring (12) away from the elastic membrane (21) is provided with a blind hole (121) for clamping a tool in.

5. A zoom magnifier according to claim 3, wherein: one side of the compression ring (12) away from the elastic membrane (21) is connected with a bump (122).

6. A zoom magnifier according to claim 1, wherein: the compression ring (12) is in interference connection with the convex ring (11).

7. A zoom magnifier according to claim 1, wherein: annotate liquid pole (31) including being close to first notes liquid pole (312) of bulge loop (11) one side and keeping away from second notes liquid pole (313) of bulge loop (11) one side, first notes liquid pole (312) outer wall is provided with external screw thread (3121), regulating part (32) include with first notes liquid pole (312) screw thread complex screwed ring (321) and cup joint in sealed section of thick bamboo (322) in the outside of second notes liquid pole (313), screwed ring (321) and sealed section of thick bamboo (322) fixed connection.

8. The zoom magnifier according to claim 7, wherein: an annular groove (3131) is formed in the outer side of one end, far away from the convex ring (11), of the second liquid injection rod (313), and a sealing ring (3132) is arranged in the annular groove (3131).

9. A zoom magnifier according to claim 1, wherein: the outer wall of the adjusting piece (32) is provided with anti-skid patterns (323).

10. A zoom magnifier according to claim 1, wherein: the inner diameter of the perforation (111) is smaller than the inner diameter of the liquid injection hole (311).