A multifunctional eyepiece display with a protection device

Abstract

The present invention discloses a multifunctional eyepiece display with a protection device, which relates to the technical field of optoelectronic instruments and includes an eyepiece assembly, comprising a lens holder and a lens barrel fixed at one end thereof; a protection assembly, including a protection cylinder, a control member and a limiting member, the protection cylinder is fixed outside the lens barrel, the control member and the limiting member are movably installed on the outer wall of the protection cylinder, and the limiting member is fixedly connected to the control member. The present invention solves the problems that the existing eyepieces have unsatisfactory defrosting effects and lack safety protection for the eyepieces themselves.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment optical instruments, and particularly relates to a multifunctional eyepiece display with a protection device. Background Art

[0002] At present, the eyepiece display is an important part of various optoelectronic devices, mainly used to provide accurate images and operation information to the operator. In harsh environments (such as low temperature and high humidity conditions), frosting on the mirror surface of the eyepiece is likely to occur, affecting the observation effect.

[0003] Limited by the difficulty of optical design, the existing eyepiece displays are mostly in the form of monocular design, and the image observation effect of users is weaker than that of binocular observation; the defrosting line is led out from the outside and connected to the product panel through a connector, with a non-compact structure form, and it is difficult to control the airtightness of the product, increasing the risk.

[0004] In addition, the electromagnetic shielding ability of traditional eyepiece displays is weak, and they are easily affected in a strong electromagnetic interference environment, thus reducing the reliability of the system. These problems seriously affect the performance of the equipment in actual use, and during the use process, the environment where the eyepiece lens and the housing are located is relatively harsh, and damage caused by various factors needs to be dealt with. Summary of the Invention

[0005] In view of the problems of unsatisfactory defrosting effect and lack of safety protection of the existing eyepieces, the present invention is proposed.

[0006] Therefore, the purpose of the present invention is to provide a multifunctional eyepiece display with a protection device, which aims to provide all-round protection for the eyepiece housing and lens while also taking into account the defrosting effect of the eyepiece.

[0007] To solve the above technical problems, the present invention provides the following technical solution: A multifunctional eyepiece display with a protection device, which includes an eyepiece assembly, including a lens holder and a lens barrel fixed at one end thereof; a protection assembly, including a protection barrel, a control member and a limiting member, the protection barrel is fixed outside the lens barrel, the control member and the limiting member are movably installed on the outer wall of the protection barrel, and the limiting member is fixedly connected to the control member.

[0008] As a preferred solution of the multifunctional eyepiece display with a protection device of the present invention, wherein: a forehead protection groove is provided at the top of one end of the lens holder, a defrosting groove is provided at the bottom of this end of the lens holder, and a relief groove is further provided in the middle of the defrosting groove; the lens barrel is coaxially and fixedly connected to the end of the lens holder away from the forehead protection groove; symmetrically fixed connection plates are provided on the outer wall of the lens barrel near the lens holder, and a sleeve ring is also fixedly sleeved on the outer wall of the lens barrel; first through holes and second through holes are also provided on the connection plates.

[0009] As a preferred embodiment of the multifunctional eyepiece display with a protection device according to the present invention, wherein: the protective cylinder includes a connecting seat, a main sleeve and an auxiliary sleeve coaxially fixed at both ends thereof. The connecting seat is equidistantly and vertically fixed with sliding columns at one end close to the main sleeve. A first spring is sleeved outside the sliding columns, and a fixing ring is detachably fixed at the end of the sliding columns. The sliding columns are slidably inserted into the collar, and both ends of the first spring are abutted against the connecting seat and the collar respectively.

[0010] As a preferred embodiment of the multifunctional eyepiece display with a protection device according to the present invention, wherein: an orbital block is axially fixedly connected to the outer wall of the main sleeve. A slideway is provided at the top of the orbital block, and clamping grooves are symmetrically provided on the inner walls of the opposite sides of the slideway. First hinge blocks are symmetrically and fixedly connected to the outer wall of the auxiliary sleeve away from the main sleeve.

[0011] As a preferred embodiment of the multifunctional eyepiece display with a protection device according to the present invention, wherein: the control member includes a cover and a hinge rod. Second hinge blocks are fixedly connected to the edge of the cover, and third hinge blocks are symmetrically fixed in the middle of one side of the cover. The second hinge blocks are rotatably connected between the first hinge blocks. One end of the hinge rod is rotatably inserted between the third hinge blocks, and fourth hinge blocks are symmetrically and fixedly connected to the other end of the hinge rod.

[0012] As a preferred embodiment of the multifunctional eyepiece display with a protection device according to the present invention, wherein: the limiting member includes an upper clamping ring and a lower clamping ring fixed at its bottom. The upper clamping ring includes a first arc plate and first connecting plates fixed at both ends thereof. A sliding clamping block is fixedly connected to the middle of the first arc plate, and a pressing member is slidably inserted into the top of the sliding clamping block. Through holes are provided on the first connecting plates, and a plurality of groups of limiting columns are symmetrically fixed at the bottom of the first connecting plates. The bottom ends of the limiting columns are detachably connected with a bottom plate, and the limiting columns are sleeved with second springs.

[0013] As a preferred embodiment of the multifunctional eyepiece display with a protection device according to the present invention, wherein: mounting grooves and embedded sliding grooves are respectively provided at the top and bottom of the sliding clamping block. A sliding connecting block is fixed in the middle of the embedded sliding groove, and through connection holes are provided on both sides of the sliding connecting block close to the groove wall of the embedded sliding groove. A cross bar is fixedly connected to one end of the sliding clamping block close to the cover, and the end of the cross bar is rotatably inserted between the fourth hinge blocks. Top columns are symmetrically and vertically fixed at the bottom of the mounting groove, and transverse insertion plates are symmetrically and slidably arranged at the bottom of the mounting groove. The transverse insertion plates can cooperate to slide through the through connection holes and be clamped into the clamping grooves. Convex plates are symmetrically fixed at both ends of the transverse insertion plates, and the convex plates can cooperate to be inserted into the clamping grooves. A third spring is fixed on the side of the convex plate away from the clamping groove, and the other end of the third spring is fixed to a vertical plate symmetrically fixed at the bottom of the mounting groove.

[0014] As a preferred solution of the multifunctional eyepiece display with a protective device of the present invention, wherein: an oblique push groove is provided on the top of the horizontal insertion plate, and a fitting groove is symmetrically provided on the side wall of the horizontal insertion plate away from the convex plate, and the top column can be placed in the fitting groove; the pressing member includes a top sealing plate and an insertion block fixedly connected to the bottom thereof, and push-back plates are symmetrically fixedly connected on both sides of the bottom of the insertion block, and inclined surfaces are relatively provided on the ends of the push-back plates, and the push-back plates are slidably inserted into the oblique push groove, and the inclined surfaces slide and abut against the oblique inner wall of the oblique push groove.

[0015] As a preferred solution of the multifunctional eyepiece display with a protective device of the present invention, the bottom end of the plug block is symmetrically provided with a top column hole, the top column can be plugged into the top column hole, and a fourth spring is fixedly connected between the top column and the inner wall of the top column hole.

[0016] As a preferred solution of the multifunctional eyepiece display with a protective device of the present invention, the lower clamping ring includes a second arc plate and a top plate fixed at both ends thereof, and a handrail is also fixed on the outer arc surface of the second arc plate; a clamping block is fixedly connected to the top of the top plate, the limiting column can be slidably inserted into the top plate, and the clamping block can cooperate to pass through the through hole and be clamped into the first through hole and the second through hole.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention achieves full coverage protection of the lens barrel by means of the cooperation and sealing of the protection tube and the control part, and improves the comfort of the eyepiece when in use by means of the forehead protection groove and the yield groove provided on the lens seat, and the frost release groove can discharge the water vapor exhaled by the user from the lens seat to avoid frost blurring the vision.

[0019] By snapping and fixing the limiter with the protective tube, the eyepiece lens can be switched between blocked protection and exposed observation. When encountering an emergency and the user needs to dodge, the switch between protection mode and observation mode can be achieved with a slight turn, thus avoiding the user from being injured due to the time-consuming mode switching. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0021] Figure 1 It is a schematic diagram of the overall structure of the multifunctional eyepiece display of the present invention.

[0022] Figure 2 Schematic structural diagram of the eyepiece assembly of the multifunctional eyepiece display of the present invention.

[0023] Figure 3 Cross-sectional view of the protective cylinder of the multifunctional eyepiece display of the present invention.

[0024] Figure 4 Schematic external structural diagram of the protective cylinder of the multifunctional eyepiece display of the present invention.

[0025] Figure 5 Schematic connection diagram of the protection component of the multifunctional eyepiece display of the present invention.

[0026] Figure 6 Schematic connection diagram of the limiting member of the multifunctional eyepiece display of the present invention.

[0027] Figure 7 Partial enlarged schematic diagram of the upper snap ring of the multifunctional eyepiece display of the present invention.

[0028] Figure 8 Schematic structural diagram of the horizontal insertion plate of the multifunctional eyepiece display of the present invention.

[0029] Figure 9 Cross-sectional view of the pressing member of the multifunctional eyepiece display of the present invention.

[0030] Figure 10 Schematic structural diagram of the lower snap ring of the multifunctional eyepiece display of the present invention.

[0031] Figure 11 Mode switching diagram of the multifunctional eyepiece display of the present invention.

[0032] Figure 12 Schematic structural diagram of the eyepiece display originally adopted in the design process of the present invention. Detailed implementation manners

[0033] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be given in conjunction with the accompanying drawings of the specification.

[0034] In the following description, many specific details are set forth to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0035] Second, the "one embodiment" or "embodiment" referred to herein means a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The appearances of "in one embodiment" in different places in this specification do not all refer to the same embodiment, nor are they separate or alternative embodiments that are mutually exclusive of other embodiments.

[0036] Third, the present invention is described in detail in conjunction with schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views showing the device structure will be enlarged locally in a non-general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0037] Embodiment 1

[0038] Referring to Figure 1 and Figure 11 、 Figure 12 , which is the first embodiment of the present invention, provides a multifunctional eyepiece display with a protection device, which includes an eyepiece assembly 100, including an eyepiece base 101 and an eyepiece barrel 102 fixed at one end thereof.

[0039] Among them, Figure 12 is a schematic diagram of the eyepiece display structure originally adopted in the design process of the present invention, including an eyecup 1 provided on the outermost side, a retaining ring 2 provided inside the eyecup 1 and applying pressure to the solder pad 4 to fix its position, and an insulating seat 3 provided between the retaining ring 2 and the solder pad 4.

[0040] On the inner side of the eyepiece barrel 8 of the original eyepiece display, there are also provided an eyepiece first spacer 8, an eyepiece second spacer 7, an eyepiece third spacer 6, and an eyepiece fourth spacer 5 arranged in a gradient. The multiple spacers act on the first eyepiece lens 15, the second eyepiece lens 16, the eyepiece cemented lens 17, the fourth eyepiece lens 18, and the fifth eyepiece lens 21, so that the multiple eyepiece lenses are located in independent display spaces and can cooperate with each other.

[0041] Among them, on the outer side of the eyepiece display, there are provided an OLED connector 10 and an OLED protective cover 11 that cooperate with each other, and an OLED display module 14 at the end face position of the lens. The display is also provided with multiple groups of M2 screws, including the reference numerals 12, 13, and 22 in the schematic diagram. On the outer side of the eyepiece display, there are also provided an O-ring 19 and a conductive sealing ring 20.

[0042] In the further improvement based on the original design, the eyepiece barrel 102 is an existing eyepiece structure used inside. The eyepiece barrel 102 and the eyepiece base 101 are detachably fixed, and can be fixed to each other by means of snap connection, locking, or screw tightening. In this embodiment, screw connection is preferably used for fixation. Further, the eyepiece barrel 102 can be fixed to each other by means of segmented screw splicing.

[0043] The protection component 200 includes a protection cylinder 201, a control member 202 and a limiting member 203. The protection cylinder 201 is fixed outside the lens barrel 102. The control member 202 and the limiting member 203 are movably installed on the outer wall of the protection cylinder 201, and the limiting member 203 is fixedly connected to the control member 202.

[0044] Among them, the protection component 200 is made of metal or plastic as a whole. If cost is not considered, it can also be made of carbon fiber material to ensure the use strength.

[0045] A forehead protection groove 101a is provided at the top of one end of the lens base 101, and a defrosting groove 101b is provided at the bottom of this end of the lens base 101. A relief groove 101c is also provided in the middle of the defrosting groove 101b; the lens barrel 102 is coaxially and fixedly connected to one end of the lens base 101 away from the forehead protection groove 101a.

[0046] Among them, an observation hole is provided in the middle of the lens base 101, which is aligned with the axis of the eyepiece assembly 100, facilitating observation through the eyepiece assembly 100. And preferably, the diameter of the observation hole here is 82 mm to improve the observation experience of the operator. By increasing the eyepiece diameter, the field of view range is expanded, enabling a more comprehensive observation of the target area during tactical operations and reducing visual fatigue caused by long-term use.

[0047] Furthermore, during use, when the user observes, the forehead abuts against the forehead protection groove 101a to ensure that the observed image is more stable.

[0048] The defrosting groove 101b can prevent the exhaled breath from directly entering the eyepiece window to form window fog, and then frosting at low temperatures. The relief groove 101c provides room for the nose to prevent the observer's nose from bumping against the eyepiece housing during observation while the vehicle is moving.

[0049] Symmetrically fixed to the outer wall of one end of the lens barrel 102 close to the lens base 101 are fixing plates 102a, and a collar 102b is also fixedly sleeved on the outer wall of the lens barrel 102; first through holes 102a-1 and second through holes 102a-2 are also provided on the fixing plates 102a. Among them, the fixing plates 102a are preferably long strip-shaped plates symmetrically connected to the outer wall of the lens barrel 102.

[0050] Embodiment 2

[0051] Refer to Figures 1 to 6 , which is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the protection cylinder 201 includes a connection seat 201a and main body sleeves 201b and auxiliary sleeves 201c coaxially fixed at both ends thereof. Among them, the main body sleeve 201b is used to protect the main part of the lens barrel 102, and the auxiliary sleeve 201c is used to protect the lens part of the lens barrel 102.

[0052] One end of the connecting seat 201a close to the main body sleeve 201b is vertically and equidistantly fixed with sliding columns 201a-1. A first spring T1 is sleeved outside the sliding columns 201a-1, and a fixing ring 201a-2 is detachably fixed to the end of the sliding columns 201a-1.

[0053] The sliding columns 201a-1 are slidably inserted into the collar 102b, and both ends of the first spring T1 are abutted against the connecting seat 201a and the collar 102b respectively.

[0054] During the installation process, the main body sleeve 201b can be first sleeved on the lens part of the lens barrel 102 to ensure that the sliding columns 201a-1 pass through the collar 102b, and then the fixing ring 201a-2 is fixed to the end of the sliding columns 201a-1 by bolts, and finally the remaining structure of the lens barrel 102 is assembled.

[0055] The outer wall of the main body sleeve 201b is axially fixedly connected with a track block 201b-1. A slideway 201b-1a is opened at the top of the track block 201b-1, and clamping grooves 201b-1b are symmetrically opened on the inner walls of the opposite sides of the slideway 201b-1a; on the outer wall of one side of the auxiliary sleeve 201c far from the main body sleeve 201b, first hinge blocks 201c-1 are symmetrically and fixedly connected.

[0056] The control member 202 includes a cover 202a and a hinge rod 202b. A second hinge block 202a-1 is fixedly connected to the edge of the cover 202a, and third hinge blocks 202a-2 are symmetrically fixed in the middle of one side of the cover 202a.

[0057] Among them, the cover 202a can be hermetically covered at the opening of the end of the auxiliary sleeve 201c.

[0058] The second hinge block 202a-1 is rotatably connected between the first hinge blocks 201c-1. One end of the hinge rod 202b is rotatably inserted between the third hinge blocks 202a-2, and fourth hinge blocks 202b-1 are symmetrically and fixedly connected to the other end of the hinge rod 202b.

[0059] The limiting member 203 includes an upper snap ring 203a and a lower snap ring 203b fixed to its bottom; the upper snap ring 203a includes a first arc plate 203a-1 and first connecting plates 203a-4 fixed to both ends thereof. A sliding block 203a-2 is fixedly connected to the middle of the first arc plate 203a-1, and a pressing member 203a-3 is slidably inserted on the top of the sliding block 203a-2.

[0060] Perforations 203a-4a are opened on the first connecting plates 203a-4. A plurality of groups of limiting columns 203a-4b are symmetrically fixed to the bottom of the first connecting plates 203a-4. The bottom ends of the limiting columns 203a-4b are detachably connected with a bottom plate 203a-4c, and the limiting columns 203a-4b are sleeved with a second spring T2.

[0061] The lower snap ring 203b includes a second arc plate 203b-1 and top plates 203b-2 fixed at both ends thereof. An armrest 203b-3 is also fixed on the outer arc surface of the second arc plate 203b-1, and the user can change the overall position of the limiting member 203 by holding the armrest 203b-3.

[0062] A snap block 203b-2a is fixedly connected to the top end of the top plate 203b-2. The limiting post 203a-4b can be slidably inserted into the top plate 203b-2, and the snap block 203b-2a can cooperate to pass through the through hole 203a-4a and be snapped into the first through hole 102a-1 and the second through hole 102a-2.

[0063] Refer to Figure 11 , during the use process, the protection component 200 is in the protection mode. At this time, the snap block 203b-2a is engaged in the first through hole 102a-1, and the cover 202a seals and protects the lens part of the lens barrel 102.

[0064] If it is necessary to switch to the observation mode, at this time, the user only needs to hold the armrest 203b-3 with the hand and pull the lower snap ring 203b downward as a whole. At this time, the second spring T2 is compressed by force, and the snap block 203b-2a is pulled out from the first through hole 102a-1.

[0065] Furthermore, the user pulls the armrest 203b-3 towards his own direction. The armrest 203b-3 drives the limiting member 203 to slide outside the main body sleeve 201b. The upper snap ring 203a pulls the cover 202a through the hinge rod 202b to open it, and the lens of the lens barrel 102 is exposed until the snap block 203b-2a slides and engages into the second through hole 102a-2 and then stops pulling.

[0066] At this time, the user can release the armrest 203b-3 and observe the surrounding environment through the observation hole opened in the middle of the lens base 101.

[0067] During this process, the main body sleeve 201b will move a certain distance as a whole following the limiting member 203, so that the lens of the lens base 101 moves forward to reach the opening at the end of the auxiliary sleeve 201c, avoiding the lens being too inward and causing dim light. Furthermore, the moving main body sleeve 20 will compress and store energy in the first spring T1.

[0068] If an emergency occurs and the user needs to take shelter and also needs to ensure the safety of the eyepiece assembly 100, at this time, only need to gently pull the armrest 203b-3, pull out the snap block 203b-2a from the second through hole 102a-2, and then quickly push the armrest 203b-3 forward. At this time, the cover 202a is pushed through the hinge rod 202b to re-block the lens at the end of the main body sleeve 201b.

[0069] During this process, the first spring T1 resets, assisting in pushing the main sleeve 201b forward to accelerate the speed of switching back to the protection mode. The remaining structures are the same as those in Embodiment 1.

[0070] Embodiment 3

[0071] Referring to Figures 1 to 11 , this is the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that installation grooves 203a-2a and embedded sliding grooves 203a-2b are respectively formed at the top and bottom of the sliding block 203a-2. A sliding connection block 203a-2b1 is fixed in the middle of the embedded sliding groove 203a-2b. Through holes 203a-2b2 are also formed on both sides of the sliding connection block 203a-2b1 close to the groove wall of the embedded sliding groove 203a-2b.

[0072] One end of the sliding block 203a-2 close to the cover 202a is fixedly connected with a cross bar H. The end of the cross bar H is rotatably inserted between the fourth hinge blocks 202b-1. Through the rotational connection between the fourth hinge blocks 202b-1 and the hinge rod 202b, the rotational angle of the cover 202a can be changed.

[0073] Vertical top posts 203a-2a1 are symmetrically and perpendicularly fixed at the bottom of the installation groove 203a-2a. Transverse insertion plates 203a-2a2 are also symmetrically and slidably arranged at the bottom of the installation groove 203a-2a. The transverse insertion plates 203a-2a2 can cooperate to slide through the through holes 203a-2b2 and be snapped into the card slots 201b-1b.

[0074] During the installation process, after the upper snap ring 203a is installed and fixed to the main sleeve 201b, the transverse insertion plates 203a-2a2 are in a state of being transversely inserted into the through holes 203a-2b2 and the card slots 201b-1b.

[0075] Convex plates 203a-2a2a are symmetrically fixed at both ends of the transverse insertion plates 203a-2a2. The convex plates 203a-2a2a can cooperate to be inserted into the card slots 201b-1b. A third spring T3 is fixed on the side of the convex plate 203a-2a2a away from the card slot 201b-1b. The other end of the third spring T3 is fixed to the vertical plates 203a-2a3 symmetrically fixed at the bottom of the installation groove 203a-2a.

[0076] In the initial state, the third spring T3 pushes the transverse insertion plates 203a-2a2 to extend out of the through holes 203a-2b2 on both sides. At this time, the convex plates 203a-2a2a are completely outside the sliding block 203a-2.

[0077] The top of the horizontal insertion plate 203a-2a2 is provided with an inclined push groove 203a-2a2b. On the side wall of the horizontal insertion plate 203a-2a2 away from the convex plate 203a-2a2a, fitting grooves 203a-2a2c are symmetrically provided. The top column 203a-2a1 can be placed in the fitting groove 203a-2a2c in a matching manner.

[0078] The pressing member 203a-3 includes a top sealing plate 203a-3a and an insertion block 203a-3b fixedly connected to the bottom thereof. On both sides of the bottom of the insertion block 203a-3b, return push plates 203a-3c are symmetrically and fixedly connected. The ends of the return push plates 203a-3c are oppositely provided with inclined surfaces X. The return push plates 203a-3c are slidably inserted into the inclined push groove 203a-2a2b, and the inclined surface X is in sliding contact with the inclined inner wall of the inclined push groove 203a-2a2b.

[0079] On both sides of the bottom end of the insertion block 203a-3b, top column holes 203a-3b1 are symmetrically provided. The top column 203a-2a1 can be inserted into the top column holes 203a-3b1 in a matching manner. A fourth spring T4 is fixedly connected between the top column 203a-2a1 and the inner wall of the top column holes 203a-3b1. In the initial state, the fourth spring T4 pushes the pressing member 203a-3 upward. At this time, the insertion block 203a-3b is located at the upper opening of the inclined push groove 203a-2a2b.

[0080] When the limiting member 203 needs to be installed, the upper snap ring 203a needs to be fixed first. At this time, the top sealing plate 203a-3a needs to be pressed downward. The inclined surface X of the insertion block 203a-3b is inserted downward along the inclined push groove 203a-2a2b, thereby pushing the horizontal insertion plate 203a-2a2 to contract into the sliding block 203a-2b1 and the installation groove 203a-2a. At this time, the third spring T3 contracts.

[0081] Furthermore, the sliding block 203a-2 is aligned with the slideway 201b-1a and inserted. After the first arc plate 203a-1 is completely attached to the outer wall of the main body sleeve 201b, the top sealing and resetting plate 203a-3a is released. The fourth spring T4 resets to push up the pressing member 203a-3, and the return push plate 203a-3c moves upward. The horizontal insertion plate 203a-2a2 is no longer limited by the return push plate 203a-3c, so that the third spring T3 resets to push the horizontal insertion plate 203a-2a2 to extend and insert into the through-hole 203a-2b2 and the card slot 201b-1b. At this time, the connection and fixation of the upper snap ring 203a and the main body sleeve 201b are completed.

[0082] Further, when installing the lower snap ring 203b, align the holes on the top plate 203b-2 with the limit posts 203a-4b, then sleeve the top plate 203b-2 onto the limit posts 203a-4b. Next, sleeve the second spring T2 outside the limit posts 203a-4b. Finally, fix the bottom plate 203a-4c to the limit posts 203a-4b with micro bolts, and the overall fixation of the limiting member 203 is completed.

[0083] This solution uses modular connection and fixation to achieve the rapid installation of the entire limiting member 203. Moreover, since the limiting member 203 has no protective measures and is more likely to be damaged, the modular structure is more convenient for replacing damaged components, improving the reuse rate of components and reducing production costs.

[0084] During use, if the device is not needed, it is in the protection mode. At this time, the cover 202a seals and protects the lens part of the lens barrel 102. The limiting member 203 is located at the front end of the eyepiece assembly 100. At this time, the block 203b-2a is inserted into the first through hole 102a-1, and at the same time, the cross bar H maintains the sealing and protecting state of the cover 202a through the hinge rod 202b.

[0085] If the device needs to be switched to the observation mode, the user needs to pull down the armrest 203b-3 at this time. The armrest 203b-3 drives the entire lower snap ring 203b to move downward, and the block 203b-2a disengages from the first through hole 102a-1. Further, the user pulls the armrest 203b-3 backward, and the block 203b-2a slides along the lower part of the fixing plate 102a.

[0086] During this process, the cross bar H moves synchronously with the lower snap ring 203b, pulling the hinge rod 202b backward. The hinge rod 202b drives the cover 202a to rotate and open, and the lens barrel of the eyepiece assembly 100 opens.

[0087] Further, when the block 203b-2a slides to the position corresponding to the second through hole 102a-2, the user releases the armrest 203b-3. The second spring T2 pushes up the lower snap ring 203b, so that the block 203b-2a is inserted into the second through hole 102a-2. At this time, the entire limiting member 203 is fixed and is in the rear end position of the eyepiece assembly 100, and the user can observe the surrounding environment through the lens holder 101.

[0088] The remaining structures are the same as those in Embodiment 2.

[0089] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not restrictive. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A multifunctional eyepiece display with a protection device, characterized in that: Comprising, An eyepiece assembly (100), including a lens base (101) and a lens barrel (102) fixed to one end thereof; A protection assembly (200), including a protection cylinder (201), a control member (202) and a limiting member (203), the protection cylinder (201) is fixed outside the lens barrel (102), the control member (202) and the limiting member (203) are movably installed on the outer wall of the protection cylinder (201), and the limiting member (203) is fixedly connected to the control member (202); The protection cylinder (201) includes a connection seat (201a) and a main body sleeve (201b) and an auxiliary sleeve (201c) coaxially fixed at both ends thereof. The connection seat (201a) is equidistantly and perpendicularly fixed with sliding columns (201a-1) at one end close to the main body sleeve (201b). A first spring (T1) is sleeved outside the sliding column (201a-1), and a fixing ring (201a-2) is also detachably fixed at the end of the sliding column (201a-1); On the outer wall of one end of the lens barrel (102) close to the lens base (101), fixing plates (102a) are symmetrically and fixedly connected. A collar (102b) is also fixedly sleeved on the outer wall of the lens barrel (102); A first through hole (102a-1) and a second through hole (102a-2) are also formed on the fixing plate (102a); The sliding column (201a-1) is slidably inserted into the collar (102b), and both ends of the first spring (T1) are abutted against the connection seat (201a) and the collar (102b); On the outer wall of the main body sleeve (201b), a track block (201b-1) is axially fixedly connected. A slideway (201b-1a) is formed at the top of the track block (201b-1), and clamping grooves (201b-1b) are symmetrically formed on the inner walls of opposite sides of the slideway (201b-1a); On the outer wall of one side of the auxiliary sleeve (201c) away from the main body sleeve (201b), first hinge blocks (201c-1) are symmetrically and fixedly connected; The limiting member (203) includes an upper clamping ring (203a) and a lower clamping ring (203b) fixed to the bottom thereof; The upper clamping ring (203a) includes a first arc plate (203a-1) and first connecting plates (203a-4) fixed to both ends thereof. A plurality of groups of limiting columns (203a-4b) are symmetrically fixed at the bottom of the first connecting plate (203a-4). The lower clamping ring (203b) includes a second arc plate (203b-1) and a top plate (203b-2) fixed to both ends thereof. A clamping block (203b-2a) is fixedly connected to the top end of the top plate (203b-2). The limiting column (203a-4b) can be slidably inserted into the top plate (203b-2), and the clamping block (203b-2a) can cooperate to pass through the through hole (203a-4a) and be clamped into the first through hole (102a-1) and the second through hole (102a-2).

2. The multifunctional eyepiece display with a protection device according to claim 1, wherein: At the top of one end of the lens base (101), a forehead protection groove (101a) is provided. At the bottom of this end of the lens base (101), a defrosting groove (101b) is provided. In the middle of the defrosting groove (101b), a relief groove (101c) is also provided. The lens barrel (102) is coaxially and fixedly connected to one end of the lens base (101) away from the forehead protection groove (101a).

3. The multifunctional eyepiece display with a protection device according to claim 1, characterized in that: The control member (202) includes a cover (202a) and a hinge rod (202b). A second hinge block (202a-1) is fixedly connected to the edge of the cover (202a). On one side of the cover (202a), third hinge blocks (202a-2) are symmetrically and fixedly provided in the middle. The second hinge block (202a-1) is rotatably connected between the first hinge blocks (201c-1). One end of the hinge rod (202b) is rotatably inserted between the third hinge blocks (202a-2). On the other end of the hinge rod (202b), fourth hinge blocks (202b-1) are symmetrically and fixedly connected.

4. The multifunctional eyepiece display with a protection device according to claim 3, characterized in that: In the middle of the first arc plate (203a-1), a sliding block (203a-2) is fixedly connected. On the top of the sliding block (203a-2), a pressing member (203a-3) is also slidably inserted. A through hole (203a-4a) is provided on the first connecting plate (203a-4). At the bottom end of the limiting post (203a-4b), a bottom plate (203a-4c) is detachably connected. The limiting post (203a-4b) is sleeved with a second spring (T2).

5. The multifunctional eyepiece display with a protection device according to claim 4, characterized in that: On the top and bottom of the sliding block (203a-2), an installation groove (203a-2a) and an embedded sliding groove (203a-2b) are respectively provided. In the middle of the embedded sliding groove (203a-2b), a sliding connection block (203a-2b1) is fixed. On both sides of the sliding connection block (203a-2b1) close to the groove wall of the embedded sliding groove (203a-2b), through connection holes (203a-2b2) are provided. One end of the sliding block (203a-2) close to the cover (202a) is fixedly connected with a cross bar (H). The end of the cross bar (H) is rotatably inserted between the fourth hinge blocks (202b-1). On the bottom of the installation groove (203a-2a), top posts (203a-2a1) are symmetrically and vertically fixed. On the bottom of the installation groove (203a-2a), horizontal insertion plates (203a-2a2) are symmetrically and slidably arranged. The horizontal insertion plates (203a-2a2) can cooperate to slide through the through connection holes (203a-2b2) and be clamped into the card slots (201b-1b). On both ends of the horizontal insertion plate (203a-2a2), convex plates (203a-2a2a) are symmetrically fixed. The convex plates (203a-2a2a) can cooperate to be inserted into the card slots (201b-1b). On the side of the convex plate (203a-2a2a) away from the card slot (201b-1b), a third spring (T3) is fixed. The other end of the third spring (T3) is fixed to a vertical plate (203a-2a3) symmetrically fixed to the bottom of the installation groove (203a-2a).

6. The multifunctional eyepiece display with a protection device according to claim 5, characterized in that: The top of the horizontal insertion plate (203a - 2a2) is provided with an inclined push groove (203a - 2a2b). On the side wall of the horizontal insertion plate (203a - 2a2) away from the convex plate (203a - 2a2a), fitting grooves (203a - 2a2c) are symmetrically clamped. The top post (203a - 2a1) can be placed in the fitting groove (203a - 2a2c) in a matching manner; The pressing member (203a - 3) includes a top sealing plate (203a - 3a) and an insertion block (203a - 3b) fixedly connected to the bottom thereof. On both sides of the bottom of the insertion block (203a - 3b), return push plates (203a - 3c) are symmetrically and fixedly connected. The ends of the return push plates (203a - 3c) are relatively provided with inclined surfaces (X). The return push plates (203a - 3c) are slidably inserted into the inclined push groove (203a - 2a2b), and the inclined surfaces (X) are in sliding contact with the inclined inner walls of the inclined push groove (203a - 2a2b).

7. The multifunctional eyepiece display with a protection device according to claim 6, characterized in that: At the bottom end of the insertion block (203a - 3b), top post holes (203a - 3b1) are symmetrically provided. The top post (203a - 2a1) can be inserted into the top post holes (203a - 3b1) in a matching manner, and a fourth spring (T4) is fixedly connected between the top post (203a - 2a1) and the inner wall of the top post hole (203a - 3b1).

8. The multifunctional eyepiece display with a protection device according to claim 1, characterized in that: On the outer arc surface of the second arc plate (203b - 1), a handrail (203b - 3) is also fixed.

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