Multi-state magnifier

Abstract

The utility model discloses a multi-state magnifier, which relates to the technical field of magnifiers, and comprises a support unit, a lens unit and a neck-hanging supporting unit, the lens unit is detachably arranged at the head end of the support unit, the neck-hanging supporting unit is detachably arranged at the tail end of the support unit, the neck-hanging supporting unit comprises a ring body with an opening, and the ring body is provided with an opening. Two hanging and buckling feet are arranged at the opening position of the ring body, two hanging and buckling positions are arranged at the tail end of the support unit, the hanging and buckling feet and the hanging and buckling positions are arranged in a one-to-one correspondence mode, and the hanging and buckling feet and the corresponding hanging and buckling positions are detachably connected. When the multi-state magnifying lens is used, the support unit can be hung and buckled at the opening position of the ring body after the ring body is worn on the neck, and the beneficial effect that the magnifying lens can be fixedly hung on the neck for use is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of magnifiers, in particular to a multi-state magnifier. Background Art

[0002] A magnifying glass is a simple visual optical device used to observe the details of an object. It is a converging lens with a focal length much smaller than the clear vision distance of the eye. The size of the image of an object on the retina of the human eye is proportional to the angle (angle of view) between the object and the eye. The larger the angle of view, the larger the image, and the more details of the object can be distinguished. Moving the object closer can increase the angle of view, but it is limited by the focusing ability of the eye. Use a magnifying glass, bring it close to the eye, and place the object within its focus to form a positive virtual image. The function of a magnifying glass is to enlarge the angle of view.

[0003] Most existing magnifying glasses are handheld magnifying glasses or stand-mounted magnifying glasses, and do not consider the use of the magnifying glasses hung around the neck for fixed use. There are technical problems such as single usage scenario and single usage method.

[0004] In view of this, it is necessary to propose a multi-state magnifier to solve or at least alleviate the above defects. Utility Model Content

[0005] The multi-state magnifying glass provided by the utility model solves the technical problem that the existing handheld magnifying glasses or stand-type magnifying glasses have a single usage scenario.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A multi-state magnifying glass comprises a bracket unit, a lens unit and a neck-hanging support unit, wherein the lens unit is detachably arranged at the head end of the bracket unit, and the neck-hanging support unit is detachably arranged at the tail end of the bracket unit. The neck-hanging support unit comprises a ring body with an opening, and two hanging buckle feet are arranged at the opening position of the ring body. Two hanging buckle positions are arranged at the tail end of the bracket unit, and the hanging buckle feet are arranged in one-to-one correspondence with the hanging buckle positions, and the hanging buckle feet are detachably connected to the corresponding hanging buckle positions.

[0008] Furthermore, the ring body includes a connecting foot and extension feet arranged relatively at both ends of the connecting foot, and a hook foot is arranged at the extended end of the extension foot, an opening is formed between the two hook feet, and the hook foot is inserted into the hook position.

[0009] Furthermore, the connecting foot, the extension foot and the buckle foot are integrally formed, and the neck-hanging support unit is made of hard plastic.

[0010] Furthermore, the bracket unit includes a middle connecting rod and a head connecting head and a tail connecting head respectively located at two ends of the middle connecting rod, the first end of the head connecting head is connected to the head end of the middle connecting rod, the second end of the head connecting head is detachably connected to the lens unit, the first end of the tail connecting head is connected to the tail end of the middle connecting rod, and the second end of the tail connecting head is detachably connected to the neck supporting unit.

[0011] Furthermore, the tail connecting head includes a tail connecting pivot housing and a tail gear coupling rod. The tail connecting pivot housing is hinged to the tail end of the middle connecting rod through the tail gear coupling rod and can be circumferentially positioned and matched. The two sides of the connecting pivot housing are provided with tail mounting holes arranged in the transverse direction. The tail end of the middle connecting rod is provided with a tail connecting hole. The tail connecting hole includes a wide diameter hole in the middle and narrow diameter holes on both sides of the wide diameter hole. The tail gear coupling rod includes a tail rotation support rod, a tail unlocking push rod and The tail locking and resetting elastic member, the tail rotation support rod passes through the tail installation through hole from one side of the tail connection pivot housing and then extends into the wide diameter hole of the tail connection hole, the tail rotation support rod is movably arranged along the axial direction of the tail installation through hole, the outer end of the tail rotation support rod and the outer edge hole wall of the tail installation through hole on the corresponding side are matched with a key groove and connected in a circumferential limit direction, the inner extension end of the tail rotation support rod and the wide diameter hole wall of the tail connection hole are matched with a key groove and connected in a circumferential limit direction, the tail installation The axial stroke of the keyway on the outer edge hole wall of the through hole is greater than the axial stroke of the keyway on the wide diameter hole wall of the tail connecting hole. A plug-in matching hole is arranged on the central axis of the inner extension end of the tail rotating support rod. The tail unlocking push rod passes through the tail installation through hole from the other side of the tail connecting pivot housing and then extends into the tail connecting hole. The tail unlocking push rod is movably arranged along the axial direction of the tail installation through hole. The outer extension end of the tail unlocking push rod and the outer edge hole wall of the tail installation through hole on the corresponding side adopt a keyway to match And it is connected in a circumferential limit direction, the inner extending end of the tail unlocking push rod passes through the narrow diameter hole of the tail connecting hole and is inserted into the plug-in matching hole, the inner extending end of the tail unlocking push rod is tightly fitted and connected with the plug-in matching hole, the radial dimension of the outer extending end of the tail unlocking push is larger than the radial dimension of the inner extending end of the tail unlocking push, the tail locking reset elastic piece is sleeved on the inner extending end of the tail unlocking push rod, and the tail locking reset elastic piece is located between the end face of the outer extending end of the tail unlocking push and the bottom face of the wide diameter hole of the tail connecting hole.

[0012] Furthermore, the tail connecting head also includes a tail disassembly lock and a tail disassembly reset elastic member. Tail disassembly buckle positions are respectively arranged on both sides of the tail connecting pivot shell. The tail disassembly buckle is located on the outside of the tail mounting through hole. The tail disassembly lock, the tail disassembly reset elastic member and the tail disassembly buckle position are arranged in a one-to-one correspondence. The tail disassembly lock is elastically loaded on the tail connecting pivot shell through the tail disassembly reset elastic member. The button end of the tail disassembly lock is arranged on the tail disassembly buckle position and is movably arranged vertically. The fastening end of the tail disassembly lock extends into the hanging buckle position.

[0013] Furthermore, the head connecting head includes a head connecting pivot housing and a head damping coupling rod. The head connecting pivot housing is hinged to the head end of the middle connecting rod through the head damping coupling rod and can be circumferentially positioned and matched. Head connecting holes are arranged on both sides of the head end of the middle connecting rod. The head connecting pivot housing is provided with head mounting through holes arranged in the transverse direction. The head mounting through holes include a small diameter hole in the middle and large diameter holes on both sides of the small diameter hole. The head damping coupling rod includes a first head conical support rod, a second head conical support rod and a head locking and reset elastic member. The first head conical support rod, the second head conical support rod and the head locking and reset elastic member are arranged one by one with the large diameter hole. The first head conical support rod is movably arranged along the axial direction of the head mounting through hole, and the first head conical support rod is arranged in the large diameter hole. The first conical surface supporting rod and the second conical surface supporting rod are connected to the large diameter hole by the keyway matching and circumferential limit connection. The bottom surface of the first head conical surface supporting rod is abutted against the bottom of the large diameter hole by the head locking reset elastic member. The second head conical surface supporting rod is movably arranged at the head end of the middle connecting rod along the axial direction of the head connecting hole. The second head conical surface supporting rod is arranged on the outer side of the first head conical surface supporting rod and is coaxially arranged with the second head conical surface supporting rod. The outer side of the second head conical surface supporting rod is circumferentially limitedly connected to the head end of the middle connecting rod. The inner side of the second head conical surface supporting rod passes through the head connecting hole and extends into the large diameter hole of the head mounting through hole. The top surface of the first head conical surface supporting rod and the bottom surface of the second head conical surface supporting rod are connected by bevel teeth matching. The head locking reset elastic member is elastically loaded between the bottom surface of the first head conical surface supporting rod and the bottom surface of the large diameter hole.

[0014] Furthermore, a snap-in position 102 is provided on the head connector, and the lens unit is inserted into the snap-in position 102 and connected with the head connector by snap-in cooperation. A mounting buckle foot is arranged on the lens unit. The head connector also includes a head disassembly lock and a head disassembly reset elastic member. A head disassembly buckle position is arranged on the head connection pivot shell, and the head disassembly lock is elastically loaded on the head connection pivot shell through the head disassembly reset elastic member. The button end of the head disassembly lock is arranged on the tail disassembly buckle position and is movably arranged vertically. The mounting buckle foot on the lens unit is inserted into the snap-in position and locked with the fastening end of the head disassembly lock.

[0015] Furthermore, the middle connecting rod is a telescopic rod, and / or also includes a hand-held handle, and the hand-held handle is connected to the lens unit by snap-fitting.

[0016] Furthermore, the lens unit includes a lens, a frame and a light strip, the lens is mounted on the frame, a receiving groove is arranged on the periphery of the frame, and the light strip is arranged in the receiving groove.

[0017] The utility model has the following beneficial effects:

[0018] The multi-state magnifier of the utility model comprises a bracket unit, a lens unit and a neck-hanging support unit. The lens unit is detachably arranged at the head end of the bracket unit, and the neck-hanging support unit is detachably arranged at the tail end of the bracket unit, so that the bracket unit, the lens unit and the neck-hanging support unit can be detachably matched for easy storage, and the unit component can be replaced when a certain component is damaged; the neck-hanging support unit comprises a ring body with an opening, two hanging buckle feet are arranged at the opening position of the ring body, and two hanging buckle positions are arranged at the tail end of the bracket unit, the hanging buckle feet and the hanging buckle positions are arranged one by one, and the hanging buckle feet are detachably connected to the corresponding hanging buckle positions. When in use, the bracket unit can be hung at the opening position of the ring body after the ring body is worn on the neck, thereby achieving the beneficial effect of fixing the magnifier on the neck for use.

[0019] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0021] Figure 1 This is a structural schematic diagram of the first state of the multi-state magnifying glass of the preferred embodiment of the utility model;

[0022] Figure 2 This is one of the exploded schematic diagrams of the first state of the multi-state magnifying glass of the preferred embodiment of the utility model;

[0023] Figure 3 This is the second exploded schematic diagram of the first state of the multi-state magnifying glass of the preferred embodiment of the utility model;

[0024] Figure 4 This is the third exploded schematic diagram of the first state of the multi-state magnifying glass of the preferred embodiment of the utility model;

[0025] Figure 5 It is a structural schematic diagram of the second state of the multi-state magnifying glass of the preferred embodiment of the utility model;

[0026] Figure 6 This is a structural schematic diagram of the third state of the multi-state magnifying glass of the preferred embodiment of the utility model;

[0027] Figure 7 yes Figure 6 A top view of the third state of the multi-state magnifying glass;

[0028] Figure 8 yes Figure 6 Sectional view at AA in the middle;

[0029] Fig. 9 yes Figure 6 Sectional view at the middle BB;

[0030] Fig.10 yes Figure 6 Sectional view at CC;

[0031] Fig.11 It is an exploded schematic diagram of the head connector of the multi-state magnifying glass of the preferred embodiment of the utility model;

[0032] Fig.12 It is an exploded schematic diagram of the tail connector of the multi-state magnifier of the preferred embodiment of the utility model;

[0033] Fig.13 This is one of the exploded schematic diagrams of the middle connecting rod of the multi-state magnifying glass of the preferred embodiment of the utility model;

[0034] Fig.14 This is one of the exploded schematic diagrams of the middle connecting rod of the multi-state magnifying glass of the preferred embodiment of the utility model;

[0035] Fig.15 This is the fourth exploded schematic diagram of the first state of the multi-state magnifying glass of the preferred embodiment of the utility model.

[0036] Legend:

[0037] 100. Multi-state magnifying glass; 10. Bracket unit; 101. Hanging buckle position; 102. Buckle position; 11. Middle connecting rod; 111. Outer rod; 112. Inner rod; 12. Head connector; 1201. Head mounting through hole; 121. Head connecting pivot shell; 122. Head damping coupling rod; 1221. First head conical support rod; 1222. Second head conical support rod; 123. Head disassembly lock; 13. Tail connector; 131. Tail connecting pivot shell; 1301. Tail mounting through hole; 132. Tail gear coupling rod; 1321. Tail rotating support rod; 1322. Tail unlocking push rod; 133. Tail disassembly lock; 20. Lens unit; 30. Neck support unit; 31. Ring body; 311. Hanging buckle foot; 312. Connecting foot; 313. Extension foot; 40. Handle. DETAILED DESCRIPTION

[0038] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.

[0039] like Figure 1 , Figure 2 , Figure 3, Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 ,as well as Fig.14 As shown, the multi-state magnifier 100 of the present embodiment comprises a bracket unit 10, a lens unit 20 and a neck support unit 30. The lens unit 20 is detachably arranged at the head end of the bracket unit 10, and the neck support unit 30 is detachably arranged at the tail end of the bracket unit 10. The neck support unit 30 comprises a ring body 31 with an opening, and two hanging buckle feet 311 are arranged at the opening position of the ring body 31. Two hanging buckle positions 101 are arranged at the tail end of the bracket unit 10. The hanging buckle feet 311 are arranged one by one with the hanging buckle positions 101, and the hanging buckle feet 311 are detachably connected with the corresponding hanging buckle positions 101.

[0040] The multi-state magnifier 100 of the utility model comprises a bracket unit 10, a lens unit 20 and a neck-hanging support unit 30. The lens unit 20 is detachably arranged at the head end of the bracket unit 10, and the neck-hanging support unit 30 is detachably arranged at the tail end of the bracket unit 10, so that the bracket unit 10, the lens unit 20 and the neck-hanging support unit 30 can be detachably matched for easy storage, and the unit component can be replaced when a certain component is damaged; the neck-hanging support unit 30 comprises a ring body 31 with an opening, two hanging buckle feet 311 are arranged at the opening position of the ring body 31, and two hanging buckle positions 101 are arranged at the tail end of the bracket unit 10, and the hanging buckle feet 311 are arranged in a one-to-one correspondence with the hanging buckle positions 101, and the hanging buckle feet 311 are detachably connected to the corresponding hanging buckle positions 101. When in use, the bracket unit 10 can be hung at the opening position of the ring body 31 after the ring body 31 is worn on the neck, thereby achieving the beneficial effect of fixing the magnifier on the neck for use.

[0041] Please refer to Figure 2 , Figure 3 as well as Figure 4 It can be understood that by setting an opening in the ring body 31, the ring body 31 has plastic deformation ability, and the opening can be opened by applying force to the ring body 31 for wearing, and after wearing, the ring body 31 can reset itself due to the plastic deformation ability.

[0042] Further, the ring body 31 includes a connecting foot 312 and an extension foot 313 arranged relatively at both ends of the connecting foot 312, and a hanging foot 311 is arranged at the extended end of the extension foot 313, and an opening is formed between the two hanging feet 311, and the hanging foot 311 is inserted and installed on the hanging position 101. Optionally, in order to improve the comfort during use, abutment lugs are arranged on the connecting foot 312, and by arranging the abutment lugs, the abutment lugs are in close contact with the back of the head after wearing the ring body 31. More preferably, in order to facilitate use after wearing, the ring body 31 is arranged in a curved manner. In the utility model, the end of the ring body 31 away from the opening is arranged in a curved manner toward the back. It can be understood that in the utility model, the arrangement angle of the ring body 31 and the bracket unit 10 can also be adjusted to make the multi-state magnifier 100 placed in a desk lamp style. Since the end of the ring body 31 away from the opening is arranged in a curved manner toward the back, the opening of the ring body 31 is used for support, which can maintain a stable working state.

[0043] Furthermore, in order to ensure the elastic restoring ability and supporting ability of the neck-hanging support unit 30, the connecting foot 312, the extension foot 313 and the buckle foot 311 are integrally formed, and the neck-hanging support unit 30 is made of hard plastic.

[0044] Please refer to Figure 3 as well as Figure 4 Further, the bracket unit includes a middle connecting rod and a tail connecting head arranged at the end of the middle connecting rod, the first end of the tail connecting head is connected to the tail end of the middle connecting rod, and the second end of the tail connecting head is detachably connected to the neck supporting unit, and / or the bracket unit also includes a head connecting head arranged at the first section of the middle connecting rod, the first end of the head connecting head is connected to the head end of the middle connecting rod, and the second end of the head connecting head is detachably connected to the lens unit.

[0045] In a specific implementation, the bracket unit 10 further includes a middle connecting rod 11 and a head connecting head 12 and a tail connecting head 13 respectively located at both ends of the middle connecting rod 11, the first end of the head connecting head 12 is connected to the head end of the middle connecting rod 11, the second end of the head connecting head 12 is detachably connected to the lens unit 20, the first end of the tail connecting head 13 is connected to the tail end of the middle connecting rod 11, and the second end of the tail connecting head 13 is detachably connected to the neck support unit 30. It can be understood that the second end of the head connector 12 is detachably connected to the lens unit 20, and the head connector 12 and the lens unit 20 can be connected by snap-fit ​​connection, or by threads or other fitting connections; the buckle foot 311 and the buckle position 101 can be snap-fitted to achieve the detachable connection of the second end of the tail connector 13 with the neck support unit 30, or the buckle foot 311 and the buckle position 101 can be snap-fitted to achieve the detachable connection of the second end of the tail connector 13 with the neck support unit 30.

[0046] Please refer to Fig.12Further, the tail connecting head 13 includes a tail connecting pivot housing 131 and a tail gear coupling rod 132. The tail connecting pivot housing 131 is hinged to the tail end of the middle connecting rod 11 through the tail gear coupling rod 132 and can be circumferentially positioned and matched. The two sides of the connecting pivot housing are provided with tail mounting holes 1301 arranged in the transverse direction. The tail end of the middle connecting rod 11 is provided with a tail connecting hole. The tail connecting hole includes a wide diameter hole in the middle and narrow diameter holes on both sides of the wide diameter hole. The tail gear coupling rod 132 includes a tail rotation support rod 1321 and a tail unlocking push rod. 1322 and the tail locking and resetting elastic member, the tail rotation support rod 1321 passes through the tail installation hole 1301 from one side of the tail connection pivot housing 131 and extends into the wide diameter hole of the tail connection hole, the tail rotation support rod 1321 is movably arranged along the axial direction of the tail installation hole 1301, the outer end of the tail rotation support rod 1321 and the outer edge hole wall of the tail installation hole 1301 on the corresponding side are matched with a key groove and circumferentially limited, and the inner extension end of the tail rotation support rod 1321 and the wide diameter hole wall of the tail connection hole are matched with a key groove and circumferentially limited. The tail portion is connected to the limit position, the keyway of the outer edge hole wall of the tail mounting hole 1301 has a larger axial stroke than the keyway of the wide diameter hole wall of the tail connecting hole, and a plug-in matching hole is arranged on the central axis of the inner extension end of the tail rotating support rod 1321, and the tail unlocking push rod 1322 passes through the tail mounting hole 1301 from the other side of the tail connecting pivot housing 131 and extends into the tail connecting hole, and the tail unlocking push rod 1322 is movably arranged along the axial direction of the tail mounting hole 1301, and the outer extension end of the tail unlocking push rod 1322 is connected to the tail mounting hole on the corresponding side. The outer edge hole wall of 1301 adopts keyway cooperation and circumferential limit connection, the inner extending end of the tail unlocking push rod 1322 passes through the narrow diameter hole of the tail connecting hole and is inserted into the plug-in fitting hole, the inner extending end of the tail unlocking push rod 1322 is tightly fitted with the plug-in fitting hole, the radial dimension of the outer extending end of the tail unlocking push is larger than the radial dimension of the inner extending end of the tail unlocking push, the tail locking reset elastic part is sleeved on the inner extending end of the tail unlocking push rod 1322, and the tail locking reset elastic part is located between the end face of the outer extending end of the tail unlocking push and the bottom surface of the wide diameter hole of the tail connecting hole.

[0047] It can be understood that the tail locking and reset elastic member can be a compression reset spring or an elastic gasket; the keyway fit can be a spline fit, a single key fit, or a gear fit; in the utility model, in a specific implementation, a keyway is arranged at the outer end of the tail rotation support rod 1321, and a guide key is arranged on the wall surface of the hole 1301 of the tail installation on one side; an outer convex gear is arranged at the inner end of the tail rotation support rod 1321, and an inner concave tooth groove is arranged on the wall surface of the wide diameter hole of the tail connecting hole; the axial dimension of the keyway is greater than the axial dimension of the outer convex gear, and then the tail rotation support rod 1321 is guided to move and exit through the keyway, and the circumferential limit of the inner end of the tail rotation support rod 1321 and the wide diameter hole of the tail connecting hole is released. The tail rotating support rod 1321 can be limited circumferentially; the outwardly extending end of the tail unlocking push rod 1322 is arranged with a keyway, and the hole wall surface of the tail mounting through hole 1301 on the other side is protrudingly arranged with a guide key; the inwardly extending end of the tail unlocking push rod 1322 passes through the tail connecting hole and is inserted into the plug-in fitting hole for tight fit, wherein the inwardly extending end of the tail unlocking push rod 1322 and the inwardly extending end of the tail rotating support rod 1321 realize both axial positioning and circumferential positioning through the plug-in fitting hole. Specifically, the inwardly extending end of the tail unlocking push rod 1322 is circumferentially matched with the inwardly extending end of the tail rotating support rod 1321 using a special-shaped hole, and the inwardly extending end of the tail unlocking push rod 1322 and the plug-in fitting hole of the tail rotating support rod 1321 are interference fit.

[0048] During specific use, by pressing and pushing the tail unlocking push rod 1322 to move axially to overcome the elastic reset force of the tail locking reset elastic member, the tail rotating support rod 1321 is pushed to move axially to release the circumferential locking cooperation between the tail rotating support rod 1321 and the tail end of the middle connecting rod 11. At this time, the tail connecting pivot shell 131 can be rotated to a suitable angle (wearing angle, desk lamp support angle or other angle); then, after releasing the press, under the action of the elastic reset force of the tail locking reset elastic member, the tail unlocking push rod 1322 drives the tail rotating support rod 1321 to move synchronously. At this time, the tail rotating support rod 1321 and the connecting pivot shell are circumferentially limited through gears.

[0049] Furthermore, the tail connector 13 also includes a tail disassembly lock 133 and a tail disassembly reset elastic member. Tail disassembly buckle positions are respectively arranged on both sides of the tail connection pivot shell 131. The tail disassembly buckle position is located on the outside of the tail mounting through hole 1301. The tail disassembly lock 133, the tail disassembly reset elastic member and the tail disassembly buckle position are arranged one by one. The tail disassembly lock 133 is elastically loaded on the tail connection pivot shell 131 through the tail disassembly reset elastic member. The button end of the tail disassembly lock 133 is arranged on the tail disassembly buckle position and is movably arranged vertically. The fastening end of the tail disassembly lock 133 extends into the hanging buckle position 101. In specific use, after the tail disassembly lock 133 is pressed to move and overcome the elastic reset force of the tail disassembly reset elastic member, the fastening end of the tail disassembly lock 133 moves downward to release the snap fit with the hook position 101, and the ring body 31 can be removed at this time; when it is necessary to assemble it on the ring body 31, it is only necessary to snap the hook foot 311 on the ring body 31 into the fastening end, and the hook foot 311 is locked in the hook position 101 under the elastic potential energy of the tail lock reset elastic member. It can be understood that the tail disassembly reset elastic member can be a compression reset spring or an elastic gasket.

[0050] Please refer to Fig.11, further, the head connecting head 12 includes a head connecting pivot housing 121 and a head damping coupling rod 122, the head connecting pivot housing 121 is hinged to the head end of the middle connecting rod 11 through the head damping coupling rod 122 and can be circumferentially positioned and matched, head connecting holes are arranged on both sides of the head end of the middle connecting rod 11, and the head connecting pivot housing 121 is arranged with head mounting holes 1201 arranged in the transverse direction, the head mounting holes 1201 include a small diameter hole in the middle and large diameter holes on both sides of the small diameter holes, the head damping coupling rod 122 includes a first head conical surface supporting rod 1221, a second head conical surface supporting rod 1222 and a head locking and resetting elastic member, the first head conical surface supporting rod 1221, the second head conical surface supporting rod 1222 and the head locking and resetting elastic member are arranged one by one with the large diameter hole, the first head conical surface supporting rod 1221 is movably arranged along the axial direction of the head mounting hole 1201, and the first head conical surface supporting rod 1221 It is arranged in the large diameter hole and is matched with the connecting pivot housing by a keyway and connected in a circumferential limit direction. The bottom surface of the first head conical surface support rod 1221 is abutted against the bottom of the large diameter hole through the head locking reset elastic member. The second head conical surface support rod 1222 is movably arranged at the head end of the middle connecting rod 11 along the axial direction of the head connecting hole. The second head conical surface support rod 1222 is arranged on the outer side of the first head conical surface support rod 1221 and is coaxially arranged with the second head conical surface support rod 1222. The outer side of the upper conical surface support rod 1222 is circumferentially limitedly connected to the head end of the middle connecting rod 11, and the inner side of the second head conical surface support rod 1222 passes through the head connecting hole and extends into the large diameter hole of the head mounting hole 1201. The top surface of the first head conical surface support rod 1221 and the bottom surface of the second head conical surface support rod 1222 are connected by bevel gear matching, and the head locking reset elastic part is elastically loaded between the bottom surface of the first head conical surface support rod 1221 and the bottom surface of the large diameter hole.

[0051] It can be understood that the head locking and reset elastic member can be a compression reset spring or an elastic gasket; a guide lug is arranged on the first head conical support rod 1221, and a matching guide groove is arranged in the large diameter hole of the head connecting pivot shell 121, and the outer side of the second head conical support rod 1222 is circumferentially limitedly connected to the head end of the middle connecting rod 11 through a special-shaped hole; the first head conical support rod 1221 rotates synchronously with the head connecting pivot shell 121, and the second head conical support rod 1222 rotates synchronously with the middle connecting rod 11, and the head locking and reset elastic member pushes the first head conical support rod 1221 to elastically abut against the second head conical support rod 1222. At the same time, the elastic abutting end of the first head conical support rod 1221 and the abutting end of the second head conical support rod 1222 are connected by bevel teeth to achieve adaptive rotation and locking.

[0052] In the specific implementation, by applying force to the middle connecting rod 11 and / or the head connecting pivot shell 121, after overcoming the elastic reset force of the head locking reset elastic member, the elastic abutting end of the first head conical surface support rod 1221 and the abutting end of the second head conical surface support rod 1222 are relatively rotated to achieve angle adjustment; after the force is released, the elastic abutting end of the first head conical surface support rod 1221 and the abutting end of the second head conical surface support rod 1222 cooperate with each other to perform circumferential locking, thereby achieving automatic positioning after angle adjustment.

[0053] Further, the head connector 12 is connected with the lens unit 20 by snapping, the lens unit 20 is provided with mounting buckle feet, the head connector 12 further includes a head disassembly lock 123 and a head disassembly reset elastic member, a head disassembly buckle position is provided on the head connection pivot housing 121, the head disassembly lock 123 is elastically loaded on the head connection pivot housing 121 through the head disassembly reset elastic member, the button end of the head disassembly lock 123 is arranged on the tail disassembly buckle position and is movably arranged vertically, and the fastening end of the head disassembly lock 123 is arranged on one side of the button end of the head disassembly lock 123. It can be understood that the head disassembly reset elastic member can be a compression reset spring or an elastic gasket.

[0054] Furthermore, a snap-in position 102 is provided on the head connector, and the lens unit is inserted into the snap-in position 102 and connected with the head connector by snap-in cooperation. A mounting buckle foot is arranged on the lens unit. The head connector also includes a head disassembly lock and a head disassembly reset elastic member. A head disassembly buckle position is arranged on the head connection pivot shell, and the head disassembly lock is elastically loaded on the head connection pivot shell through the head disassembly reset elastic member. The button end of the head disassembly lock is arranged on the tail disassembly buckle position and is movably arranged vertically. The mounting buckle foot on the lens unit is inserted into the snap-in position and locked with the fastening end of the head disassembly lock.

[0055] During specific use, by pressing the head disassembly lock 123 to move and overcome the elastic reset force of the head disassembly reset elastic member, the fastening end of the head disassembly lock 123 moves downward to release the snap fit with the installation buckle foot, and the lens unit 20 can be removed at this time; when the lens unit 20 needs to be assembled, it is only necessary to insert the installation buckle foot of the lens unit 20 into the snap position and cooperate with the fastening end, and the fastening end is locked on the installation buckle foot under the elastic potential energy of the head lock reset elastic member.

[0056] Please refer to Fig.13 as well as Fig.14Furthermore, for ease of use, the middle connecting rod 11 is a telescopic rod. Specifically, in order to facilitate adjustment of the telescopic length of the middle connecting rod 11, the middle connecting rod 11 includes an outer rod 111 and an inner rod 112, the inner rod 112 is arranged inside the outer rod 111 and is movably arranged along the length direction of the outer rod 111, and the outer rod 111 and the inner rod 112 are positioned by rack matching.

[0057] In a specific implementation, the outer outer rod 111 includes a U-shaped mother frame plate with a guide boss arranged in the middle, and the guide boss is arranged along the length direction. The inner rod 112 is a U-shaped sub-frame plate with a guide groove arranged in the middle, and the U-shaped sub-frame plate is covered with the U-shaped mother frame plate. The guide groove and the guide boss cooperate with each other to make the U-shaped sub-frame plate slidable on the U-shaped mother frame plate along the length direction. The outer outer rod 111 also includes a limiting cover plate provided on the opening side of the U-shaped mother frame plate, and racks arranged along the length direction are respectively arranged on both sides of the back wall of the U-shaped sub-frame plate. A limiting single tooth corresponding to the rack is arranged on the limiting cover plate, and the U-shaped sub-frame plate is positioned in the length direction by cooperating with the limiting single tooth and the rack; it can be understood that when force is applied, the limiting single tooth deforms the U-shaped sub-frame plate and moves relative to the U-shaped mother frame plate in the length direction to make the middle connecting rod 11 extend or contract. Preferably, a tail connection hole for pivoting is arranged at one end of the U-shaped mother frame plate away from the U-shaped sub-frame plate, and a head connection hole for hinged is arranged at one end of the U-shaped sub-frame plate away from the U-shaped mother frame plate.

[0058] Furthermore, the lens unit 20 includes a lens, a frame and a light strip, the lens is mounted on the frame, a receiving groove is arranged on the periphery of the frame, and the light strip is arranged in the receiving groove.

[0059] Please refer to Fig.15 , further, it also includes a handheld handle 40, which is snap-fitted with the lens unit 20. Specifically, the lens unit 20 is provided with a mounting foot, and the handheld handle 40 includes a handheld housing, a handheld disassembly lock and a handheld disassembly reset elastic member, a handheld disassembly buckle position is provided on the handheld housing, and the handheld disassembly lock is elastically loaded on the handheld housing through the handheld disassembly reset elastic member, the button end of the handheld disassembly lock is provided on the tail disassembly buckle position and is movably provided in the vertical direction, and the fastening end of the handheld disassembly lock is provided on one side of the button end of the handheld disassembly lock. It can be understood that the handheld disassembly reset elastic member can be a compression reset spring or a handheld disassembly reset elastic member.

[0060] It can be understood that the lens unit is provided with mounting buckles, and the mounting buckles on the lens unit are inserted into the handheld handle.

[0061] Please refer to Figure 1 , Figure 5 , Figure 6 as well as Fig.15The multi-state magnifying glass 100 provided by the utility model can be used for printing, engraving, education, coins, stamps and reading for low vision, etc., and can also be used as a lighting lamp alone. It has the function of a neck-hanging magnifying glass. When used as a neck-hanging reading magnifying glass, first put the neck-hanging support unit 30 into the neck, and install the bracket unit 10 by matching the tail of the bracket unit 10 with the hanging buckle foot 311 of the ring body 31; then adjust the use angle and use length, specifically, adjust the angle of the tail connector 13 by pressing the tail unlocking push rod 1322, adjust the angle of the head connector 12 by rotating the middle connecting rod 11 and / or the head connecting pivot shell 121, and adjust the use length by extending or contracting the middle connecting rod 11 After the length is used up, the head disassembly lock 123 can be pressed to remove the lens unit 20 for protective storage; when used as a desktop reading or desk lamp, the angle of the tail connector 13 can be adjusted by pressing the tail unlocking push rod 1322, and the angle of the head connector 12 can be adjusted by rotating the middle connecting rod 11 and / or the head connecting pivot shell 121, so that the neck support unit 30 is supported on the desktop to form a supporting structure; when used as a handheld magnifying glass, the lens unit 20 can be connected to the handheld handle 40 by snapping.

[0062] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-state magnifying glass, characterized in that: It comprises a bracket unit, a lens unit and a neck-hanging support unit, wherein the lens unit is detachably arranged at the head end of the bracket unit, and the neck-hanging support unit is detachably arranged at the tail end of the bracket unit. The neck hanging support unit includes a ring body with an opening, two hanging buckle feet are arranged at the opening position of the ring body, and two hanging buckle positions are arranged at the tail end of the bracket unit. The hanging buckle feet are arranged in a one-to-one correspondence with the hanging buckle positions, and the hanging buckle feet are detachably connected to the corresponding hanging buckle positions.

2. The multi-state magnifying glass according to claim 1, characterized in that: The ring body includes a connecting foot and extension feet arranged at both ends of the connecting foot, the hook feet are arranged at the extended ends of the extension feet, and the opening is formed between the two hook feet. The hook foot is inserted into the hook position.

3. The multi-state magnifying glass according to claim 2, characterized in that: The connecting foot, the extension foot and the buckle foot are integrally formed, and the neck hanging support unit is made of hard plastic.

4. The multi-state magnifying glass according to any one of claims 1 to 3, characterized in that: The bracket unit includes a middle connecting rod and a tail connecting head arranged at the end of the middle connecting rod, the first end of the tail connecting head is connected to the tail end of the middle connecting rod, and the second end of the tail connecting head is detachably connected to the neck hanging support unit.

5. The multi-state magnifying glass according to claim 4, characterized in that: The tail connecting head includes a tail connecting pivot housing and a tail gear coupling rod. The tail connecting pivot housing is hinged to the tail end of the middle connecting rod through the tail gear coupling rod and can be circumferentially positioned and matched. The two sides of the connecting pivot housing are provided with tail mounting holes arranged in a transverse direction. The tail end of the middle connecting rod is provided with a tail connecting hole. The tail connecting hole includes a wide diameter hole in the middle and narrow diameter holes on both sides of the wide diameter hole. The rear gear coupling rod comprises a rear rotation support rod, a rear unlocking push rod and a rear locking reset elastic member, the rear rotation support rod passes through the rear mounting through hole from one side of the rear connection pivot housing and extends into the wide diameter hole of the rear connection hole, the rear rotation support rod is movably arranged along the axial direction of the rear mounting through hole, the outer end of the rear rotation support rod is key-matched and circumferentially limitedly connected with the outer edge hole wall of the rear mounting through hole on the corresponding side by a keyway, the inner extending end of the rear rotation support rod is key-matched and circumferentially limitedly connected with the wide diameter hole wall of the rear connection hole by a keyway, the keyway matching axial stroke of the outer edge hole wall of the rear mounting through hole is greater than the keyway matching axial stroke of the wide diameter hole wall of the tail connection hole, and a plug-in matching hole is arranged on the central axis of the inner extending end of the tail rotation support rod. The tail unlocking push rod passes through the tail mounting through hole from the other side of the tail connecting pivot housing and then extends into the tail connecting hole, and the tail unlocking push rod is movably arranged along the axial direction of the tail mounting through hole, and the outer edge hole wall surface of the tail mounting through hole on the corresponding side is matched with a key groove and circumferentially limited and connected, and the inner extending end of the tail unlocking push rod passes through the narrow diameter hole of the tail connecting hole and then is inserted into the plug-in matching hole, and the inner extending end of the tail unlocking push rod is tightly matched with the plug-in matching hole, and the radial size of the outer extending end of the tail unlocking push rod is larger than the radial size of the inner extending end of the tail unlocking push rod, The tail locking and resetting elastic member is sleeved on the inner extending end of the tail unlocking push rod, and the tail locking and resetting elastic member is located between the end surface of the outer extending end of the tail unlocking push rod and the bottom surface of the wide diameter hole of the tail connecting hole.

6. The multi-state magnifying glass according to claim 5, characterized in that: The tail connector also includes a tail disassembly lock and a tail disassembly reset elastic member. Tail disassembly buckles are respectively arranged on both sides of the tail connection pivot housing, and the tail disassembly buckle is located on the outside of the tail mounting through hole. The tail disassembly lock, the tail disassembly reset elastic member and the tail disassembly buckle are arranged in a one-to-one correspondence. The tail disassembly lock is elastically loaded on the tail connection pivot housing through the tail disassembly reset elastic member. The button end of the tail disassembly lock is arranged on the tail disassembly buckle and is movably arranged vertically. The fastening end of the tail disassembly lock extends into the hanging buckle position.

7. The multi-state magnifying glass according to claim 4, characterized in that: The bracket unit also includes a head connector provided at the first section of the middle connecting rod, a first end of the head connector is connected to the head end of the middle connecting rod, and a second end of the head connector is detachably connected to the lens unit. The head connector includes a head connection pivot housing and a head damping coupling rod. The head connection pivot housing is hinged to the head end of the middle connecting rod through the head damping coupling rod and can be circumferentially positioned and matched. Head connection holes are arranged on both sides of the head end of the middle connecting rod. The head connection pivot housing is provided with head mounting holes arranged in a transverse direction. The head mounting holes include a small diameter hole in the middle and large diameter holes on both sides of the small diameter hole. The head damping coupling rod comprises a first head conical surface supporting rod, a second head conical surface supporting rod and a head locking and resetting elastic member, wherein the first head conical surface supporting rod, the second head conical surface supporting rod and the head locking and resetting elastic member are arranged one by one corresponding to the large diameter hole, The first head conical surface supporting rod is movably arranged along the axial direction of the head mounting through hole, the first head conical surface supporting rod is arranged in the large diameter hole and is matched with the connecting pivot housing by a keyway and is circumferentially limitedly connected, the bottom surface of the first head conical surface supporting rod is abutted against the bottom of the large diameter hole by the head locking and resetting elastic member, the second head conical surface supporting rod is movably arranged at the head end of the middle connecting rod along the axial direction of the head connecting hole, the second head conical surface supporting rod is arranged on the outer side of the first head conical surface supporting rod and is coaxially arranged with the second head conical surface supporting rod, the outer side of the second head conical surface supporting rod is circumferentially limitedly connected with the head end of the middle connecting rod, and the inner side of the second head conical surface supporting rod passes through the head connecting hole and extends into the large diameter hole of the head mounting through hole. The top surface of the first head conical support rod and the bottom surface of the second head conical support rod are connected by bevel gear matching, and the head locking and resetting elastic member is elastically loaded between the bottom surface of the first head conical support rod and the bottom surface of the large diameter hole.

8. The multi-state magnifying glass according to claim 7, characterized in that: A snap-in position is provided on the head connecting head, the lens unit is inserted in the snap-in position and is snap-fitted with the head connecting head, a mounting buckle foot is arranged on the lens unit, the head connecting head also includes a head disassembly lock and a head disassembly reset elastic member, a head disassembly buckle position is arranged on the head connecting pivot shell, the head disassembly lock is elastically loaded on the head connecting pivot shell through the head disassembly reset elastic member, the button end of the head disassembly lock is arranged on the tail disassembly buckle position and is movably arranged vertically, the mounting buckle foot on the lens unit is inserted in the snap-in position and is locked with the fastening end of the head disassembly lock.

9. The multi-state magnifying glass according to claim 4, characterized in that: The middle connecting rod is a telescopic rod, and / or Also included is a hand-held handle, which is snap-fittedly connected to the lens unit.

10. The multi-state magnifying glass according to claim 4, characterized in that: The lens unit comprises a lens, a frame and a light strip, wherein the lens is mounted on the frame, a receiving groove is arranged on the periphery of the frame, and the light strip is arranged in the receiving groove.

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