Open-visual-field long-distance optical reader-writer
By introducing a telescopic support device into the optical reader and writer, and using lifting components and sliders to achieve box height adjustment, the problem that the prior art cannot adapt to users of different ages and heights is solved, and the applicability and stability of the equipment are improved.
Patent Information
- Application Number
- CN202420771778.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-15
- Publication Date
- 2024-12-06
- Estimated Expiration
- 2034-04-15
AI Technical Summary
The existing open field of view long-distance optical readers cannot adjust the height of the device, cannot adapt to the needs of users of different ages and heights, and cannot meet the requirements of use of years and different heights.
An optical reader and writer including a concave mirror, a semi-transparent half-mirror and a telescopic support device articulated on the back of the box is designed. The vertical movement of the box is achieved through the lifting assembly and the slider, and the imaging distance is adjusted to adapt to different Users of age and height.
It has achieved improved applicability to users of different age groups, which can better match the viewer's viewing axis, enhance the applicability and stability of the reader and writer, avoid device deviation, and extend service life.
Smart Images
Figure CN222125547U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of myopia prevention and control, and in particular to an open-view long-distance optical reader / writer. Background Art
[0002] Myopia, visual fatigue and presbyopia are common visual problems that affect the vision and quality of life of people of all ages. Due to the popularity of electronic products and the increase in schoolwork burden, the myopia rate of children and adolescents in my country is higher than the world average. The number of myopia patients has increased rapidly and is significantly younger. It is expected to remain at a high level in the future. The prevention and control and correction of myopia are extremely arduous. Due to the strong adjustment power of adolescent eyes, long-term close-range use of the eyes will cause excessive tension of the ciliary muscles, eye fatigue and even ciliary muscle spasm, resulting in accommodative myopia. If it is not eliminated in time, it will continue to develop and become irreversible true myopia. Therefore, moving the image of a close-up reading object far away can reduce the accommodative stimulation of the eye and play a role in relaxing the eyes. The telescopic imaging reading and writing device can convert a close-up object into a long-distance virtual image through an optical method, and reflect the image through a semi-transparent and semi-reflective mirror and a concave mirror, so that the observer can see the distant and enlarged image. When the observer observes the distant image, the ciliary muscle relaxes, which can reduce the visual stimulation to the growth of the eye axis and play a role in preventing and controlling myopia.
[0003] In addition, some studies in recent years have shown that for adults who need to read and write at close range for a long time, devices based on the principle of telescopic imaging can improve the amplitude of micro-fluctuations in eye adjustment, reduce the adjustment load, and reduce visual fatigue. For people over 40 years old, the main visual problem is that the adjustment ability of the lens decreases when looking at close objects, resulting in difficulty in close reading. Devices based on the principle of telescopic imaging can also solve the problem of difficulty in close reading, and with appropriate light source supplementation, the overall visual effect can be improved.
[0004] Some existing telephoto products, including electronic display and optical structure products, generally have a fixed image distance that cannot be adjusted, and cannot meet the needs of users of different age groups, different heights, and multiple telephoto imaging distances.
[0005] Utility model patent CN207575330U proposes an "open-view long-distance optical reader / writer", which reflects the image of a book or electronic terminal onto a concave lens, and then reflects the image through a half-reflecting half-mirror into the user's eyes through the concave lens, and enables the user to read and write at a distance through the combination of the concave lens and the half-transparent half-reflecting mirror. However, the above open-view long-distance optical reader / writer cannot be used for users of different ages and different heights, and the height between the long-distance optical reader / writer and the reading and writing platform or desk cannot be adjusted.
[0006] Therefore, there is an urgent need for a telescopic imaging reading and writing device that can change the imaging distance by adjusting the height of the device to adapt to different heights and different observation distances of different age groups. Utility Model Content
[0007] 1. Technical issues to be resolved
[0008] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides an open-field long-distance optical reader / writer, which solves the technical problems that the existing open-field long-distance optical reader / writer cannot be used for users of different age groups and different heights, and cannot adjust the height between the long-distance optical reader / writer and the reading and writing platform or desk.
[0009] (II) Technical solution
[0010] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:
[0011] The utility model provides an open-view long-distance optical reader / writer, comprising a box body with a viewing hole on the front side and an object hole on the bottom, a concave mirror installed on the back side wall inside the box body, a semi-transparent and semi-reflective mirror installed in the viewing hole and tilted toward the concave mirror, and a telescopic support device hinged on the outer wall of the back side of the box body; the telescopic support device comprises a support platform, a shell fixedly connected to the top of the support platform, and a lifting mechanism arranged in the shell; a long through hole is opened on the outer wall of the shell facing the box body, the lifting mechanism comprises a slider and a lifting assembly, the slider is placed in the long through hole, the slider is sleeved on the outer wall of the lifting assembly, and one end of the slider facing the back side of the box body is hinged to the box body; the lifting assembly can drive the slider to move vertically, thereby driving the box body to move vertically, so as to change the height of the box body.
[0012] Preferably, the lifting assembly includes a motor and a threaded rod; the motor is installed inside the bottom of the outer shell, and the interior of the outer shell at the position corresponding to the long through hole is a moving space, one end of the threaded rod is fixedly connected to the output shaft of the motor, and the other end is rotatably connected to the top wall of the moving space, and the slider is sleeved on the outer wall of the threaded rod.
[0013] Preferably, the lifting assembly includes an electric telescopic rod; the interior of the shell at the position corresponding to the long through hole is a moving space, the fixed end of the electric telescopic rod is installed at the bottom of the interior of the shell, the extended end of the electric telescopic rod is placed in the moving space, and the slider is connected to the top of the electric telescopic rod.
[0014] Preferably, a scale is provided on the outer wall of the shell.
[0015] Preferably, the telescopic support device also includes a first sealing mechanism and a second sealing mechanism; long grooves are provided on the inner walls on both sides of the long through hole of the shell, the first sealing mechanism and the second sealing mechanism are both installed at the long through hole and the side walls on both sides of the sealing mechanism are placed in the two long grooves, the first sealing mechanism and the second sealing mechanism are respectively located above and below the slider and one end of the first sealing mechanism and the second sealing mechanism are respectively installed on the bottom wall and the top wall of the long through hole, and the other ends are always against the bottom wall and the top wall of the slider.
[0016] Preferably, the first sealing mechanism comprises a first telescopic plate, a telescopic rod and an elastic member; one end of the first telescopic plate is mounted on the bottom wall of the long through hole and the side walls on both sides of the first telescopic plate are respectively placed in the two long grooves, and the other end always presses against the bottom wall of the slider, an elastic space is opened inside the first telescopic plate, the telescopic rod is vertically mounted in the elastic space, and the elastic member is sleeved on the outer wall of the telescopic rod; the second sealing mechanism comprises a second telescopic plate; one end of the second telescopic plate is mounted on the top wall of the long through hole, and the other end always presses against the top wall of the slider.
[0017] Preferably, it also includes a first cover plate and a second cover plate; both ends of the first cover plate are provided with a first connecting rod, a placement space is opened inside the top plate of the box body and slide grooves are provided on both sides of the placement space, the slide grooves are connected to the placement space, the first cover plate is placed in the placement space and the two ends of the first connecting rod are placed in the two slide grooves, the first cover plate can move along the slide groove, and when the first connecting rod close to the concave mirror is placed at one end of the slide groove close to the viewing hole, the first cover plate can rotate around the axis of the first connecting rod close to the concave mirror The first connecting rod at the end of the first cover plate away from the concave mirror can be clamped with the first clamping seat connected to the side wall below the viewing hole of the box body; two mounting seats are mirror-symmetrically provided at the bottom of the box body and at one end located at the object hole, and two second clamping seats are mirror-symmetrically provided at the bottom of the box body and at the other end located at the object hole, and second connecting rods are provided at both ends of the second cover plate, the second connecting rod at one end of the second cover plate is rotatably connected to the two mounting seats, and the second connecting rod at the other end of the second cover plate can be clamped with the two second clamping seats.
[0018] Preferably, it also includes a rangefinder, a processor and a screen; the rangefinder and the processor are both installed at the bottom of the box, the screen is installed on the outer wall of the front end of the box, and the rangefinder, the processor and the screen are electrically connected.
[0019] Preferably, it also includes a light strip; the light strip is installed on the inner walls around the object hole.
[0020] Preferably, it also includes a camera; the camera is installed on the outer wall of the box.
[0021] (III) Beneficial effects
[0022] The beneficial effects of the utility model are:
[0023] By setting a lifting assembly and a slider, the lifting assembly can drive the slider to lift vertically along the axis of the shell. Since the slider is hinged to the back side of the box, the slider can drive the box to lift vertically, thereby realizing the change of the height of the box, and further realizing the matching of the observer's visual axis for users of different age groups, that is, users of different heights, so that the optical reader is more applicable and more suitable for people of different age groups. At the same time, the angle of the box can be changed, that is, the pitch angle can be changed, making the reader more practical; by opening a long through hole on the outer wall of the shell close to the box, the slider is placed in the long through hole, which can limit the vertical movement of the slider, avoid the slider from shifting during the vertical movement, thereby avoiding the box from shifting and causing damage to the device. The utility model sets a lifting support device, which can not only firmly support the box, but also realize the vertical lifting of the box, so that the applicability of the reader is wider and more suitable for users of different age groups. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a three-dimensional schematic diagram of the overall structure of an open-view long-distance optical reader / writer of the utility model when the box is opened;
[0025] Figure 2 It is a three-dimensional schematic diagram of the overall structure of an open-view long-distance optical reader / writer of the utility model when the box is closed;
[0026] Figure 3 It is a side view structural schematic diagram of an open field of view long-distance optical reader / writer of the utility model;
[0027] Figure 4 It is a schematic cross-sectional view of the overall structure of a telescopic support device of an open-view long-distance optical reader / writer of the utility model;
[0028] Figure 5 It is a perspective structural schematic diagram of a plate of a first telescopic plate of an open-view long-distance optical reader / writer of the utility model;
[0029] Figure 6 It is a three-dimensional schematic diagram of the overall structure of a second telescopic plate of an open-view long-distance optical reader / writer of the utility model;
[0030] Figure 7 It is a schematic cross-sectional view of the overall structure of a telescopic support device of another embodiment of the open-view long-distance optical reader / writer of the utility model.
[0031] [Description of Reference Numerals]
[0032] 1: box; 2: concave mirror; 3: semi-transparent and semi-reflective mirror; 4: telescopic support device; 41: support platform; 42: shell; 43: lifting mechanism; 431: slider; 432: lifting assembly; 4321: motor; 4322: threaded rod; 4323: electric telescopic rod; 44: first sealing mechanism; 441: first telescopic plate; 442: telescopic rod; 443: elastic member; 45: second sealing mechanism; 451: second telescopic plate; 5: first cover plate; 51: first connecting rod; 52: first clamping seat; 6: second cover plate; 61: second connecting rod; 62: second clamping seat; 63: mounting seat; 7: rangefinder; 8: processor; 9: screen; 10: light strip; 11: camera. DETAILED DESCRIPTION
[0033] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.
[0034] Embodiment 1
[0035] like Figure 1-Figure 7 As shown, an open-field long-distance optical reader / writer of this embodiment includes a box body 1 with a viewing hole on the front side and an object hole on the bottom, a concave mirror 2 installed on the inner back wall of the box body 1, a semi-transparent and semi-reflective mirror 3 installed in the viewing hole and inclined toward the concave mirror 2, and a telescopic support device 4 hinged on the outer wall on the back side of the box body 1.
[0036] Specifically, the telescopic support device 4 includes a support platform 41, a shell 42 fixedly connected to the top of the support platform 41, and a lifting mechanism 43 disposed in the shell 42; a long through hole is opened on the outer wall of the shell 42 facing the box body 1, and the lifting mechanism 43 includes a slider 431 and a lifting assembly 432, the slider 431 is placed in the long through hole, the slider 431 is sleeved on the outer wall of the lifting assembly 432 and one end of the slider 431 facing the back side of the box body 1 is hinged to the box body 1; the lifting assembly 432 can drive the slider 431 to move vertically, thereby driving the box body 1 to move vertically to change the height of the box body 1. By setting the lifting assembly 432 and the slider 431, the lifting assembly 432 can drive the slider 431 to vertically lift along the axis of the shell 42. Since the slider 431 is hinged to the back side of the box 1, the slider 431 can drive the box 1 to vertically lift, thereby realizing the change of the height of the box 1, and further realizing the matching of the observer's visual axis for users of different age groups, that is, users of different heights, so that the optical reader is more applicable and more suitable for people of different age groups. At the same time, the angle of the box 1 can be changed, that is, the pitch angle can be changed, making the reader more practical; by opening a long through hole on the outer wall of the shell 42 close to the box 1, the slider 431 is placed in the long through hole, which can realize the vertical movement of the slider 431. Avoid the slider 431 from shifting during the vertical movement, thereby avoiding the box 1 from shifting and causing damage to the device. Preferably, the outer wall of the shell 42 is provided with a scale, which enables the user to clearly observe the height of the box 1 rising or falling, so that the height adjustment is more intuitive and clear.
[0037] Furthermore, the lifting assembly 432 includes a motor 4321 and a threaded rod 4322; the motor 4321 is installed inside the bottom of the outer shell 42, and the interior of the outer shell 42 at the position corresponding to the long through hole is a moving space, one end of the threaded rod 4322 is fixedly connected to the output shaft of the motor 4321, and the other end is rotatably connected to the top wall of the moving space, and the slider 431 is sleeved on the outer wall of the threaded rod 4322. By setting up a motor 4321 and a threaded rod 4322, and the motor 4321 is a forward and reverse motor 4321, the motor 4321 is driven to rotate, which can drive the threaded rod 4322 to rotate. Since the slider 431 is mounted on the threaded rod 4322, the forward and reverse rotation of the motor 4321 can drive the slider 431 to move vertically along the axis of the threaded rod 4322; since the slider 431 is hinged to the box body 1, it can drive the box body 1 to move vertically, thereby changing the height of the box body 1, thereby adjusting the distance between the box body 1 and the reading and writing platform, so as to adapt to users of different age groups.
[0038] Furthermore, the telescopic support device 4 also includes a first sealing mechanism 44 and a second sealing mechanism 45; long grooves are provided on the inner walls on both sides of the long through hole of the shell 42, and the first sealing mechanism 44 and the second sealing mechanism 45 are both installed at the long through hole and the side walls on both sides of the sealing mechanism are placed in the two long grooves to achieve the limiting of the sealing mechanism; the first sealing mechanism 44 and the second sealing mechanism 45 are respectively located above and below the slider 431 and one end of the first sealing mechanism 44 and the second sealing mechanism 45 are respectively installed on the bottom wall and the top wall of the long through hole, and the other ends are always against the bottom wall and the top wall of the slider 431.
[0039] Specifically, the first sealing mechanism 44 includes a first telescopic plate 441, a telescopic rod 442 and an elastic member 443; one end of the first telescopic plate 441 is installed on the bottom wall of the long through hole and the side walls of the first telescopic plate 441 are respectively placed in two long grooves, and the other end always presses against the bottom wall of the slider 431. An elastic space is opened inside the first telescopic plate 441, and the telescopic rod 442 is vertically installed in the elastic space. The elastic member 443 is sleeved on the outer wall of the telescopic rod 442, which can realize that when the slider 431 moves vertically along the axis of the threaded rod 4322, the first telescopic plate 441, due to the action of the elastic member 443, makes the top of the first telescopic plate 441 always press against the bottom wall of the slider 431, thereby realizing that the first telescopic plate 441 moves along with the slider 431 The second sealing mechanism 45 includes a second telescopic plate 451; one end of the second telescopic plate 451 is installed on the top wall of the long through hole, and the other end always presses against the top wall of the slider 431. Due to the effect of gravity, the bottom end of the second telescopic plate 451 is always in contact with the top wall of the slider 431, thereby sealing the long through hole above the slider 431, preventing users from accidentally touching the mobile space or preventing indoor dust and other debris from entering the mobile space, thereby preventing the threaded rod 4322 from being unable to rotate, thereby causing damage to the device.
[0040] Furthermore, an open-view long-distance optical reader / writer of the present embodiment further comprises a first cover plate 5 and a second cover plate 6; both ends of the first cover plate 5 are provided with a first connecting rod 51, an accommodation space is provided inside the top plate of the box body 1 and slide grooves are provided on both sides of the accommodation space, the slide grooves are connected with the accommodation space, the first cover plate 5 is placed in the accommodation space and both ends of the first connecting rod 51 are placed in the two slide grooves, the first cover plate 5 can move along the slide groove, when the first connecting rod 51 close to the concave mirror 2 is placed at the end of the slide groove close to the viewing hole, the first cover plate 5 can rotate around the axis of the first connecting rod 51 close to the concave mirror 2, the first connecting rod 51 at the end of the first cover plate 5 away from the concave mirror 2 can be engaged with the first clamping seat 52 connected to the side wall below the viewing hole of the box body 1, so that the viewing hole position is closed by the first cover plate 5 and the two pairs of first connecting rods 51, avoiding the box The body 1 is caused by dust and debris in the room entering through the viewing hole, causing the semi-transparent and semi-reflective mirror 3 to be worn or contaminated with dust, thereby reducing the light transmittance of the semi-transparent and semi-reflective mirror 3 and reducing the imaging clarity. Two mounting seats 63 are mirror-symmetrically provided at the bottom of the box body 1 and at one end of the object hole, and two second clamping seats 62 are mirror-symmetrically provided at the bottom of the box body 1 and at the other end of the object hole. Second connecting rods 61 are provided at both ends of the second cover plate 6. The second connecting rod 61 at one end of the second cover plate 6 is rotatably connected to the two mounting seats 63, and the second connecting rod 61 at the other end of the second cover plate 6 can be clamped with the two second clamping seats 62, which can achieve the closure of the object hole, prevent dust or debris from entering the box body 1 through the object hole, so that the concave mirror 2 and the semi-transparent and semi-reflective mirror 3 are contaminated with dust or debris, and the light transmittance of the concave mirror 2 and the semi-transparent and semi-reflective mirror 3 is reduced, and the imaging clarity is reduced.
[0041] Furthermore, it also includes a rangefinder 7, a processor 8 and a screen 9; the rangefinder 7 and the processor 8 are both installed at the bottom of the box 1, and the screen 9 is installed on the outer wall of the front end of the box 1, and the rangefinder 7, the processor 8 and the screen 9 are electrically connected. During installation, the distance from the center of the semi-transparent and semi-reflective mirror 3 to the emission point of the rangefinder 7 is fixed, which is related to the design size of the reader / writer; the distance from the center of the semi-transparent and semi-reflective mirror 3 to the center of the concave mirror 2 is fixed, which is related to the design size of the reader / writer, and the line between the center of the semi-transparent and semi-reflective mirror 3 and the center of the concave mirror 2 is parallel to the horizontal line; the rangefinder 7 measures the distance between the bottom of the box 1 and the reading and writing platform. Among them:
[0042] The distance between the bottom of the box 1 and the reading and writing platform of the rangefinder 7 is recorded as L0;
[0043] The distance between the center of the semi-transparent and semi-reflective mirror 3 and the emission point of the rangefinder 7 is recorded as L0';
[0044] That is, the distance between the center of the semi-transparent and semi-reflective mirror 3 and the reading and writing platform is L0+L0'=L1;
[0045] The distance between the center of the semi-transparent mirror 3 and the center of the concave mirror 2 is recorded as L2;
[0046] The distance between the imaging position and the center of the concave mirror 2 is recorded as L3;
[0047] That is, the object distance is L1+L2;
[0048] The focal length is a fixed value, f; according to the optical calculation formula:
[0049]
[0050] The calculation formula is:
[0051]
[0052] Since L1, L2 and f are all known values, the image distance, that is, the specific value of L3, can be calculated. This calculation formula is calculated by the internal program of the processor 8. Since the rangefinder 7, the processor 8 and the screen 9 are all electrically connected, after the rangefinder 7 measures the lifting distance of the box 1, it is calculated and processed by the internal program of the processor 8 to obtain the image distance value, and the real-time image distance value is displayed on the screen 9, so that by changing the height of the box 1, the distance between the image distances seen by the human eye can be further changed.
[0053] Furthermore, a light belt 10 is included; the light belt 10 is installed on the inner wall around the object hole, which can supplement the light source to avoid the user's eye strain when watching when the indoor light is insufficient or backlit, and also cause unclear image distance. By setting the light belt 10, it can make the light source more sufficient and the image clearer. Preferably, the light belt 10 is an eye protection light belt 10.
[0054] Furthermore, it also includes a camera 11; the camera 11 is installed on the outer wall of the box 1, and it can be installed on the top wall, side wall and bottom wall of the box 1 to observe the user's learning situation or the surrounding environment in real time so as to supervise the user.
[0055] It should be noted that this embodiment does not involve the improvement and use of any computer program, but only provides the connection relationship between the rangefinder 7, the processor 8 and the screen 9. The improvement of the utility model does not involve the content of the control aspect, and the existing control process and calculation process are all existing contents.
[0056] Embodiment 2
[0057] Different from the first embodiment, the lifting assembly 432 in this embodiment includes an electric telescopic rod 4323; the interior of the shell 42 at the position corresponding to the long through hole is a moving space, the fixed end of the electric telescopic rod 4323 is installed at the bottom of the interior of the shell 42, the extended end of the electric telescopic rod 4323 is placed in the moving space, the slider 431 is connected to the top of the electric telescopic rod 4323, and the slider 431 is driven by the extension and retraction of the electric telescopic rod 4323 to achieve lifting and lowering, thereby changing the height of the box 1 and further changing the image distance.
[0058] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0059] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0060] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.
[0061] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.
[0062] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. An open-view long-distance optical reader / writer, comprising a box (1) with a viewing hole on the front side and an object hole on the bottom, a concave mirror (2) mounted on the back wall inside the box (1), and a semi-transparent and semi-reflective mirror (3) mounted in the viewing hole and tilted toward the concave mirror (2), characterized in that: It also includes a telescopic support device (4) hinged on the outer wall on the back side of the box body (1); The telescopic support device (4) comprises a support platform (41), a shell (42) fixedly connected to the top of the support platform (41), and a lifting mechanism (43) disposed in the shell (42); The outer wall of the housing (42) facing the box body (1) is provided with a long through hole, the lifting mechanism (43) comprises a slider (431) and a lifting assembly (432), the slider (431) is placed in the long through hole, the slider (431) is sleeved on the outer wall of the lifting assembly (432), and one end of the slider (431) facing the back side of the box body (1) is hinged to the box body (1); The lifting assembly (432) can drive the slider (431) to move vertically, thereby driving the box (1) to move vertically, so as to change the height of the box (1).
2. The open-view long-distance optical reader / writer as claimed in claim 1, characterized in that: The lifting assembly (432) includes a motor (4321) and a threaded rod (4322); The motor (4321) is installed inside the bottom of the housing (42), and the interior of the housing (42) at the position corresponding to the long through hole is a moving space. One end of the threaded rod (4322) is fixedly connected to the output shaft of the motor (4321), and the other end is rotatably connected to the top wall of the moving space. The slider (431) is sleeved on the outer wall of the threaded rod (4322).
3. The open-view long-distance optical reader / writer as claimed in claim 1, characterized in that: The lifting assembly (432) includes an electric telescopic rod (4323); The interior of the housing (42) at the position corresponding to the long through hole is a moving space, the fixed end of the electric telescopic rod (4323) is installed at the bottom of the interior of the housing (42), the extended end of the electric telescopic rod (4323) is placed in the moving space, and the slider (431) is connected to the top of the electric telescopic rod (4323).
4. An open-view long-distance optical reader / writer as claimed in any one of claims 1 to 3, characterized in that: The outer wall of the housing (42) is provided with scales.
5. An open-view long-distance optical reader / writer as claimed in any one of claims 1 to 3, characterized in that: The telescopic support device (4) further comprises a first sealing mechanism (44) and a second sealing mechanism (45); Long grooves are provided on the inner walls on both sides of the long through hole of the shell (42); the first sealing mechanism (44) and the second sealing mechanism (45) are both installed at the long through hole and the side walls on both sides of the sealing mechanism are placed in the two long grooves; the first sealing mechanism (44) and the second sealing mechanism (45) are respectively located above and below the slider (431) and one end of the first sealing mechanism (44) and the second sealing mechanism (45) are respectively installed on the bottom wall and the top wall of the long through hole, and the other ends are always against the bottom wall and the top wall of the slider (431).
6. The open-view long-distance optical reader / writer as claimed in claim 5, characterized in that: The first sealing mechanism (44) comprises a first telescopic plate (441), a telescopic rod (442) and an elastic member (443); One end of the first telescopic plate (441) is mounted on the bottom wall of the long through hole and the side walls of the first telescopic plate (441) are respectively placed in the two long grooves, and the other end always abuts against the bottom wall of the slider (431). An elastic space is provided inside the first telescopic plate (441), the telescopic rod (442) is vertically mounted in the elastic space, and the elastic member (443) is sleeved on the outer wall of the telescopic rod (442); The second sealing mechanism (45) comprises a second telescopic plate (451); One end of the second telescopic plate (451) is mounted on the top wall of the long through hole, and the other end always abuts against the top wall of the sliding block (431).
7. An open-view long-distance optical reader / writer as claimed in any one of claims 1 to 3, characterized in that: It also includes a first cover plate (5) and a second cover plate (6); Both ends of the first cover plate (5) are provided with first connecting rods (51); a placement space is provided inside the top plate of the box body (1) and sliding grooves are provided on both sides of the placement space; the sliding grooves are connected to the placement space; the first cover plate (5) is placed in the placement space and both ends of the first connecting rod (51) are placed in the two sliding grooves; the first cover plate (5) can move along the sliding grooves; when the first connecting rod (51) close to the concave mirror (2) is placed at one end of the sliding groove close to the viewing hole, the first cover plate (5) can rotate around the axis of the first connecting rod (51) close to the concave mirror (2); the first connecting rod (51) at one end of the first cover plate (5) away from the concave mirror (2) can be clamped with a first clamping seat (52) connected to the side wall below the viewing hole of the box body (1); Two mounting seats (63) are mirror-symmetrically provided at the bottom of the box body (1) and at one end of the object hole, and two second clamping seats (62) are mirror-symmetrically provided at the bottom of the box body (1) and at the other end of the object hole. Second connecting rods (61) are provided at both ends of the second cover plate (6), and the second connecting rod (61) at one end of the second cover plate (6) is rotatably connected to the two mounting seats (63), and the second connecting rod (61) at the other end of the second cover plate (6) can be clamped with the two second clamping seats (62).
8. An open-view long-distance optical reader / writer as claimed in any one of claims 1 to 3, characterized in that: It also includes a rangefinder (7), a processor (8) and a screen (9); The rangefinder (7) and the processor (8) are both installed at the bottom of the box (1), the screen (9) is installed on the outer wall of the front end of the box (1), and the rangefinder (7), the processor (8) and the screen (9) are electrically connected.
9. An open-view long-distance optical reader / writer as claimed in any one of claims 1 to 3, characterized in that: Also includes a light strip (10); The light strip (10) is installed on the inner walls around the object hole.
10. An open-view long-distance optical reader / writer as claimed in any one of claims 1 to 3, characterized in that: Also includes a camera (11); The camera (11) is installed on the outer wall of the box (1).