Display picture rolling device

Abstract

The utility model belongs to the technical field of map display devices, and discloses a displayable map rolling device which comprises a box body, a map rolling assembly and a driving assembly, the map rolling assembly is arranged in the box body and comprises a first rolling shaft and a second rolling shaft which are parallel to each other, and the first rolling shaft and / or the second rolling shaft are / is in transmission connection with the driving assembly. The first rolling shaft and the second rolling shaft are connected with a drawing assembly at the same time. The map display device can be used in a field environment and plays a role in preventing wind, rain, sand and dust, one or more maps are annularly wound on the first rolling shaft and the second rolling shaft, the areas of the maps can be adjusted or different maps can be adjusted to be displayed under the driving of the driving assembly, the display is more flexible and convenient, and the practicability is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of map display devices, and in particular relates to a roll map device capable of displaying. Background Art

[0002] Maps are indispensable in scientific research and military activities. In the wild, due to natural factors such as wind, rain, sand and dust, the storage and display of maps has always been a problem, especially for units that need to use a large number of maps in the field.

[0003] Existing related technical products are divided into two categories. One is a map reel for indoor fixed hanging. This type of map reel is relatively large and bulky, and is all powered by electricity. The usage scenario is relatively fixed and cannot be separated from electricity. The other type of related equipment used in the field environment includes map storage boxes and map display stands. Map storage boxes can only be used to store and store maps, not to display maps, while map display stands can only display maps but not store maps. They are also not windproof and dustproof. Changing maps is slow and inconvenient. When encountering large-format maps or windy weather, two or more people are required to cooperate.

[0004] Therefore, there is a need for a new type of map rolling device that can be driven without electricity, is lightweight and portable, can store and display maps at the same time, and can be windproof, rainproof, and dustproof. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a displayable roll map device, which can be used to display one or more maps while being able to protect against wind, rain, sand and dust.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A map roll device for display, comprising a box, a map roll assembly and a driving assembly, wherein the map roll assembly is arranged in the box, and the map roll assembly comprises a first roller and a second roller parallel to each other, the first roller and / or the second roller are drivingly connected to the driving assembly, and the first roller and the second roller are simultaneously connected to a map assembly; the map assembly comprises a first annular map piece formed by connecting one map end to end or a second annular map piece formed by connecting at least two maps end to end in sequence, and the two ends of the first annular map piece or the second annular map piece are respectively wound around the first roller and the second roller; or the map assembly comprises a first plane map piece composed of one map or a second plane map piece composed of a plurality of maps connected in sequence, and the two ends of the first plane map piece or the second plane map piece are respectively wound around the first roller and the second roller;

[0008] The box body is provided with a transparent display area for displaying the drawing assembly.

[0009] In a possible implementation, the length of the map sheet of the first annular map piece is greater than the distance between the first roller and the second roller.

[0010] In a possible implementation, the length of each map sheet of the second annular map piece is greater than or equal to the distance between the first roller and the second roller.

[0011] In a possible implementation, the length of the map sheet of the first plane map is greater than the distance between the first roller and the second roller; or, the length of each map sheet of the second plane map is greater than or equal to the distance between the first roller and the second roller.

[0012] In a possible implementation, two ends of the first annular component, the second annular component, the first planar component or the second planar component are bonded and fixed to the first roller and the second roller.

[0013] In a possible implementation, the box body includes a box body with an open top and a box cover provided on the box body, and the box cover is provided with the display area.

[0014] In a possible implementation, the display area includes a window opened in the box cover and a transparent glass arranged in the window.

[0015] In a possible implementation, one end of the box cover is hinged to the box body, and the other end of the box cover is detachably connected to the box body via a lock;

[0016] The box body is also provided with a handle and / or a shoulder strap.

[0017] In a possible implementation, one end of the first roller and the second roller are respectively connected to a rotation damper, and the other end of the first roller and the second roller are transmission-connected to the driving assembly.

[0018] In a possible implementation, the rotary damper has a connecting shaft, the connecting shaft is connected to a first transmission wheel via a first unidirectional rotating connecting member, and the first transmission wheel is transmission-connected to a second transmission wheel arranged at an end of the first roller or the second roller via a first transmission belt.

[0019] In a possible implementation, the driving assembly is provided with two groups and is respectively connected to the first roller and the second roller;

[0020] The driving assembly includes a hand crank, which is connected to a third transmission wheel via a second unidirectional rotating connecting member, and the third transmission wheel is transmission-connected to a fourth transmission wheel arranged on the first roller or the second roller via a second transmission belt.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] The displayable map roll device of the utility model can accommodate maps in a box structure, so that maps can be used in outdoor environments and play a role in protecting against wind, rain and dust. Moreover, by winding one or more maps in a ring or plane on the first roller and the second roller, the map area can be adjusted or adjusted to different maps for display under the drive of the driving component, so that the display is more flexible and convenient, and the practicality is improved.

[0023] Moreover, the map can be fixed on the first roller and the second roller by a detachable connection method such as bonding, which can be easily replaced. The replaceable nature of the map can realize the function of storage by being set in a box while being able to be displayed, further improving the practicality.

[0024] At the same time, the cover of the box can be easily opened, the map can be replaced, and the volume of the box can be reduced by adjusting the display area of ​​the map or the winding method of displaying different maps, so that it can be carried with the handle or shoulder strap, which is more convenient.

[0025] In addition, the rotational resistance of the first roller and the second roller can be controlled by the rotary damper, so that the map surface always maintains a certain tension and flatness, and the rotary damper can achieve a unidirectional damping effect through the first unidirectional rotating part. When the hand crank is rotated, it can be limited to unidirectional rotation through the second unidirectional rotating connecting part. Reverse rotation will result in idling, thereby avoiding misoperation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A three-dimensional view of a displayable scroll device;

[0027] Figure 2 A three-dimensional view of a displayable scroll device behind a hidden box cover;

[0028] Figure 3 for Figure 2 Top view of the structure shown.

[0029] Figure 4 for Figure 2 a cross-sectional view of the structure shown;

[0030] Figure 5 A schematic diagram of a displayable winding device for a first annular drawing piece;

[0031] Figure 6 A schematic diagram of the winding of a second annular drawing piece of a displayable drawing winding device;

[0032] Figure 7 A schematic diagram of the winding arrangement of a first plane drawing piece by a displayable drawing winding device;

[0033] Figure 8A schematic diagram of the winding arrangement of a second plane drawing piece by a displayable drawing winding device;

[0034] In the figure: 1-box body; 11-box cover; 12-box body; 13-display area; 14-window; 15-transparent glass; 16-cavity structure; 2-rolling assembly; 21-first roller; 22-second roller; 23-rotation damper; 24-second transmission wheel; 25-first transmission wheel; 26-first transmission belt; 3-driving assembly; 31-hand crank; 32-second transmission belt; 4-handle; 5-drawing assembly. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with specific implementation methods.

[0036] Please refer to Figure 1-8 As shown, an embodiment of the present application provides a displayable picture roll device, including a box body 1, a picture roll assembly 2 and a driving assembly 3, wherein the picture roll assembly 2 is arranged in the box body 1, and the picture roll assembly 2 includes a first roller 21 and a second roller 22 parallel to each other, the first roller 21 and / or the second roller 22 are transmission-connected to the driving assembly 3, and the first roller 21 and the second roller 22 are simultaneously connected to a drawing assembly 5; the box body 1 is provided with a transparent display area 13 for displaying the drawing assembly 5.

[0037] The box 1 is an openable closed structure, which is used to accommodate maps and a map roll assembly 2. Such a structure can protect the drawings placed therein from wind, rain, dust, and dust, and play a better protective role. The display area 13 of the box 1 is transparent, which is convenient for users to view the maps inside through the display area 13. The map roll assembly 2 mainly includes a first roller 21 and a second roller 22 rotatably arranged in the box 1. The first roller 21 and the second roller 22 are spaced apart and parallel to each other. The drawings wound thereon can be one or more, and different display of one or more drawings can be achieved through different winding methods.

[0038] In some application scenarios, the drawing component has different winding structures according to the number of drawings or the winding method. The winding structure includes but is not limited to the following implementation structures:

[0039] In the first implementation structure, combined with Figure 5As shown, the drawing assembly 5 includes a first annular map piece formed by connecting a map end to end, and the two ends of the first annular map piece are respectively wound on the first roller 21 and the second roller 22. In such an implementation structure, the map is a map with a relatively large map sheet length, and it is wound on the first roller 21 and the second roller 22 at the same time through the annular structure formed by connecting the end to the end, so that when the first roller 21 or the second roller 22 drives the map to rotate, different map areas can be rotated into the display area for display.

[0040] In the second implementation structure, combined with Figure 6 As shown, the drawing assembly 5 is a second annular drawing formed by connecting at least two maps end to end in sequence, and the two ends of the second annular drawing are respectively wound on the first roller 21 and the second roller 22. In such an implementation structure, multiple maps are used and the length of each map is greater than or equal to the distance between the two first rollers 21 and the second roller 22. They are wound on the first roller 21 and the second roller 22 at the same time through the annular structure formed by connecting the first roller 21 and the second roller 22. In this way, when the first roller 21 or the second roller 22 drives the map to rotate, different maps can be rotated into the display area for display, and when the length of each map is equal to the distance between the two first rollers 21 and the second roller 22, the content of the entire map can be fully displayed in the display area.

[0041] The above two implementation structures can adjust or display the drawings repeatedly from the beginning to the end in a unidirectional rotation through the annular structure.

[0042] In the third implementation structure, combined with Figure 7 As shown, the drawing assembly 5 includes a first plane drawing piece consisting of a map, and the two ends of the first plane drawing piece are respectively wound on the first roller 21 and the second roller 22. In such an implementation structure, a map with a map sheet length greater than the distance between the first roller 21 and the second roller 22 is used, and its two ends are respectively wound on the first roller 21 and the second roller 22, so that different parts of the map can enter the display area for display when rotating.

[0043] In the third implementation structure, combined with Figure 8 As shown, the drawing assembly 5 includes a second plane drawing piece formed by connecting a plurality of maps in sequence, and the two ends of the second plane drawing piece are respectively wound on the first roller 21 and the second roller 22. In such an implementation structure, a plurality of maps are connected to form a second plane drawing piece whose length is longer than the distance between the first roller 21 and the second roller 22, and the two ends thereof are respectively wound on the first roller 21 and the second roller 22, so that different map areas can enter the display area for display by rotating the first roller 21 or the second roller 22.

[0044] The above two implementation structures can respectively rotate the first roller 21 or the second roller 22 through the multi-layer winding method at both ends to achieve adjustment and display in two directions.

[0045] It can be understood that one of the first and second reels can be connected to the drive component 3 and be an active roller, and the other can be a driven roller, or both can be connected to a group of drive components 3 respectively so as to be able to rotate separately, and there is no limitation; the drive component 3 can adopt an electric drive component such as a motor, or can be manually driven, and the configuration can be selected according to actual needs.

[0046] Through the above technical solution, the map is accommodated in the structure of the box 1, so that the map can be used in the field environment to protect against wind, rain and dust, and by winding one or more maps in a ring shape on the first roller 21 and the second roller 22, the area of ​​the map can be adjusted or adjusted to different maps for display under the drive of the drive component 3, which makes the display more flexible and convenient, thereby improving practicality.

[0047] In one embodiment, the length of the map sheet of the first annular map piece is greater than the distance between the first roller 21 and the second roller 22 .

[0048] In this way, different map areas of the first annular map with a larger map length can be adjusted to the display area 13 by rotating the first roller 21 or the second roller 22, so that the display of different map areas can be realized more conveniently.

[0049] In another embodiment, the length of each map sheet of the second annular map piece is greater than or equal to the distance between the first roller 21 and the second roller 22 .

[0050] In this way, the second annular map formed by connecting multiple maps can rotate one of the maps to the display area 13. When the map sheet is large, the different map content areas can be adjusted to the display area 13 for display. When the map sheet length is equal to the distance between the first scroll and the second scroll, the entire map content of the map can be displayed in the display area 13.

[0051] In addition, the length of the map sheet of the first plane map is greater than the distance between the first roller 21 and the second roller 22, so that different areas of the map can enter the display area for display by rotating; and when a second plane map is formed by connecting multiple maps, the length of each map sheet of the second plane map is greater than or equal to the distance between the first roller (21) and the second roller (22), so that each map can enter the display area for display. When the map sheets are equal to the distance between the first roller 21 and the second roller 22, the content of the corresponding map can be fully displayed in the display area.

[0052] Furthermore, in order to facilitate the replacement of the map, both ends of the first annular map piece, the second annular map piece, the first plane map piece or the second plane map piece are bonded and fixed to the first roller 21 and the second roller 22. The bonding method adopted can be connected by tape, or by Velcro, and of course there are no other connection methods that can facilitate disassembly and replacement.

[0053] In order to facilitate the replacement and storage of maps, the box body 1 further comprises a box body 12 with an open top and a box cover 11 disposed on the box body 12, and the box cover 11 is provided with the display area 13. The box cover 11 allows the box body 1 to be opened for easy replacement of maps, and the function of storage can be achieved by winding, further improving practicality.

[0054] In a specific implementation process, the display area 13 includes a window 14 opened in the box cover 11 and a transparent glass 15 arranged in the window 14. In this way, it is convenient for the user to view the map inside through the transparent glass 15.

[0055] Specifically, one end of the box cover 11 is hinged to the box body 12, and the other end of the box cover 11 is detachably connected to the box body 12 through a lock; the box body 12 is also provided with a handle 4 and / or a shoulder strap. By adjusting the map display area 13 or the winding method of displaying different maps, the volume of the box body 1 can be reduced, and it can be carried with the handle 4 or the shoulder strap. The opening method is simple, easy to operate, and more convenient to use.

[0056] In the embodiment of the present application, one end of the first roller 21 and the second roller 22 are respectively connected to a rotation damper 23 , and the other end of the first roller 21 and the second roller 22 are transmission-connected to the driving assembly 3 .

[0057] The rotation resistance of the first roller 21 and the second roller 22 can be controlled by the rotary damper 23, so that the map surface always maintains a certain tension and flatness. The rotary damper 23 is fixed in the box 1, and its connection end can be coaxially connected to the first roller 21 or the second roller 22, or connected through a transmission structure.

[0058] In order to achieve a one-way damping effect through the rotary damper 23, the rotary damper 23 has a connecting shaft, which is connected to a first transmission wheel 25 through a first one-way rotating connecting member. The first transmission wheel 25 is connected to a second transmission wheel 24 arranged at the end of the first roller 21 or the second roller 22 through a first transmission belt 26.

[0059] In this way, a one-way damping effect can be achieved by the first one-way rotating connection member in conjunction with the rotary damper 23, so that a better damping feeling can be achieved in the predetermined rotation direction, while idling will occur in the reverse direction. Specifically, the first one-way rotating connection member adopts a one-way bearing, and when the first roller 21 or the second roller 22 rotates, the second transmission wheel 24 thereon rotates and the first transmission wheel 25 connected to the rotary damper 23 can be driven to rotate through the first transmission belt 26, thereby applying a rotation resistance through the rotary damper 23.

[0060] On this basis, the driving component 3 is provided with two groups and is respectively connected to the first roller 21 and the second roller 22; the driving component 3 includes a hand crank 31, which is connected to a third transmission wheel through a second unidirectional rotating connecting member, and the third transmission wheel is connected to a fourth transmission wheel arranged on the first roller 21 or the second roller 22 through a second transmission belt 32.

[0061] When the hand crank 31 is rotated, the second one-way rotating connector can limit the rotation to one direction only, and the reverse rotation will result in idling, thereby avoiding misoperation, and the effective rotation direction is consistent with the limited direction of the first one-way rotating connector.

[0062] It should be noted that when using the first annular drawing piece or the second annular drawing piece with an annular structure, since both the left and right directions can be used as rotation directions, the limited directions of the first one-way rotating connector and the second one-way rotating connector on both sides can be configured according to needs, such as opposite directions or the same direction on both sides; when using the first plane drawing piece or the second plane drawing piece with a planar structure, they can also be rotated left and right for adjustment and display, but the rotation is mainly in opposite directions. Therefore, the first one-way rotating connector and the second one-way rotating connector on both sides can be configured to be in opposite directions on both sides.

[0063] In addition, the displayable roll-up device combines the storage and display of maps in one, relies on simple mechanical principles to get rid of power constraints, and is small in size, light in weight, and has good sealing properties, so it can be used in field environments.

[0064] In the specific implementation process, when the first planar drawing piece or the second planar drawing piece is wound, the area between the first roller 21 and the second roller 22 is an empty area, and a cavity structure 16 that bulges upward can be set in this area. The cavity structure 16 can be arc-shaped, square or circular, and the bottom of the cavity is provided with an opening, and a cavity door that can be easily opened is connected to the opening, so that the storage function can be realized through the cavity, which is more convenient. Since the drawing piece is flexible, the cavity structure 16 will lift the bottom of the first annular drawing piece or the second annular drawing piece to a certain height, but it will not affect its normal rotation, so that the utilization rate of the space of the box body 1 can be further improved.

[0065] The above are only preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be regarded as limiting the present invention. The protection scope of the present invention should be based on the scope defined by the claims. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the spirit and scope of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A displayable scroll device, characterized in that: The invention comprises a box (1), a drawing roll assembly (2) and a driving assembly (3), wherein the drawing roll assembly (2) is arranged in the box (1), and the drawing roll assembly (2) comprises a first roller (21) and a second roller (22) which are parallel to each other, the first roller (21) and / or the second roller (22) are drivingly connected to the driving assembly (3), and the first roller (21) and the second roller (22) are simultaneously connected to a drawing assembly (5); The drawing assembly (5) comprises a first annular drawing piece formed by connecting one map end to end or a second annular drawing piece formed by connecting at least two maps end to end in sequence, and two ends of the first annular drawing piece or the second annular drawing piece are respectively wound on a first roller (21) and a second roller (22); or the drawing assembly (5) comprises a first plane drawing piece formed by connecting one map or a second plane drawing piece formed by connecting a plurality of maps in sequence, and two ends of the first plane drawing piece or the second plane drawing piece are respectively wound on a first roller (21) and a second roller (22); The box (1) is provided with a transparent display area (13) for displaying the drawing assembly.

2. A displayable scroll device as claimed in claim 1, characterized in that: The map sheet length of the first annular map piece is greater than the distance between the first roller (21) and the second roller (22).

3. A displayable scroll device as claimed in claim 1, characterized in that: The length of each map sheet of the second annular map piece is greater than or equal to the distance between the first roller (21) and the second roller (22).

4. A displayable scroll device as claimed in claim 1, characterized in that: The length of the map sheet of the first plane map is greater than the distance between the first roller (21) and the second roller (22); or the length of each map sheet of the second plane map is greater than or equal to the distance between the first roller (21) and the second roller (22).

5. The displayable scroll device according to claim 1, characterized in that: The box body (1) comprises a box body (12) with an open top and a box cover (11) arranged on the box body (12), and the box cover (11) is provided with the display area (13).

6. A displayable scroll device as claimed in claim 5, characterized in that: The display area (13) comprises a window (14) opened in the box cover (11) and a transparent glass (15) arranged in the window (14).

7. A displayable scroll device as claimed in claim 5, characterized in that: One end of the box cover (11) is hinged to the box body (12), and the other end of the box cover (11) is detachably connected to the box body (12) via a lock; The box body (12) is also provided with a handle (4) and / or a shoulder strap.

8. A displayable scroll device according to any one of claims 1 to 7, characterized in that: One end of the first roller (21) and the second roller (22) are respectively connected to a rotation damper (23), and the other end of the first roller (21) and the second roller (22) are transmission-connected to the driving assembly (3).

9. A displayable scroll device as claimed in claim 8, characterized in that: The rotary damper (23) has a connecting shaft, the connecting shaft is connected to a first transmission wheel (25) via a first unidirectional rotating connecting member, and the first transmission wheel (25) is transmission-connected to a second transmission wheel (24) arranged at the end of the first roller (21) or the second roller (22) via a first transmission belt (26).

10. The displayable scroll device according to claim 8, characterized in that: The driving assembly (3) is provided with two groups and is respectively connected to the first roller (21) and the second roller (22); The driving assembly (3) comprises a hand crank (31), the hand crank (31) being connected to a third transmission wheel via a second unidirectional rotating connecting member, and the third transmission wheel being transmission-connected to a fourth transmission wheel arranged on the first roller (21) or the second roller (22) via a second transmission belt (32).

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