CN210239573U - Telescopic upper and lower berth ladder - Google Patents
Telescopic upper and lower berth ladder Download PDFInfo
- Publication number
- CN210239573U CN210239573U CN201920261170.3U CN201920261170U CN210239573U CN 210239573 U CN210239573 U CN 210239573U CN 201920261170 U CN201920261170 U CN 201920261170U CN 210239573 U CN210239573 U CN 210239573U
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- connecting pipe
- shell
- bevel gear
- ladder
- telescopic
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Abstract
A telescopic upper and lower berth ladder comprises an upper bed plate, a ladder body, a fixing device, a first connecting pipe, a second connecting pipe, a third connecting pipe and a cross rod; the screw rod can sequentially pass through the bottom of the second connecting pipe and the bottom of the third connecting pipe; the bottom of the screw is sleeved with a driven bevel gear, and the driven bevel gear is meshed with the driving bevel gear; one group of transmission assemblies is positioned on one side of the top of the second connecting pipe, and the other group of transmission assemblies is positioned on the other side of the bottom of the second connecting pipe; the gear is respectively and rotatably arranged on one side of the top and the other side of the bottom of the second connecting pipe, and a chain is wound on the gear; one side surface of the moving plate is connected with one end of the pull rod; the other end of the pull rod penetrates through the shell and is connected with the shell in a sliding manner; the other end of the pull rod is connected with the pull ring; the inserted bar is matched with the jack. The invention has the advantages of small volume, convenient extension and folding, and reduced occupation of narrow space in dormitories by installing the contracted ladder under the bed plate which is not fully utilized.
Description
Technical Field
The invention relates to the field of upper and lower berth ladders, in particular to a telescopic upper and lower berth ladder.
Background
In the traditional six people sleep, four upper berths and two lower berths are adopted, and when the upper berths climb on a ladder, embarrassing situations are often encountered: the ladder only leads to one of the bunks of the upper bunks, and students on the other side of the bunks have to climb to the bed of another person to avoid embarrassment, and generally, when the bunks are bedded, the bed tails are relatively arranged at the bed tails and the desks are also arranged at the bed tails, so that the students on the bunks are very troubled, and the traditional ladder has too large occupied space and brings great inconvenience. In order to solve the problems, the application provides a telescopic upper and lower berth ladder.
Disclosure of Invention
Objects of the invention
In order to solve the technical problems in the background art, the invention provides a telescopic upper and lower berth ladder which is small in size and convenient to stretch and fold, and the contracted ladder is arranged below a bed plate which is not fully utilized, so that the occupation of a narrow space in a dormitory is reduced.
(II) technical scheme
In order to solve the problems, the invention provides a telescopic upper and lower berth ladder, which comprises an upper bed plate, a ladder body, a fixing device, a first connecting pipe, a second connecting pipe, a third connecting pipe and a cross rod, wherein the upper bed plate is fixedly connected with the ladder body; the side wall of the upper bed plate is movably connected with the top end of the ladder body; the bottom surface of the upper bed plate is provided with a fixing device;
the ladder body is formed by connecting two groups of connecting pieces through cross bars; the connecting piece comprises a first connecting pipe, a second connecting pipe and a third connecting pipe which are arranged side by side; the cross rods are arranged in three groups in parallel and are respectively positioned between two groups of first connecting pipes, two groups of second connecting pipes and two groups of third connecting pipes; the bottom of the third connecting pipe penetrates through the top of the second connecting pipe and is in sliding connection with the second connecting pipe; the bottom of the second connecting pipe penetrates through the top of the first connecting pipe and is in sliding connection with the first connecting pipe; a group of connecting pieces are provided with telescopic components;
the telescopic component comprises a handle, a rotating shaft, a driving bevel gear, a driven bevel gear, a screw and a transmission component; the inner bottom surface of the first connecting pipe is rotatably connected with a screw; the screw rod can sequentially pass through the bottom of the second connecting pipe and the bottom of the third connecting pipe; the bottom of the screw is sleeved with a driven bevel gear, and the driven bevel gear is meshed with the driving bevel gear; one end of the rotating shaft is connected with the driving bevel gear, the other end of the rotating shaft penetrates through the side wall of the first connecting pipe and is rotatably connected with the first connecting pipe, two groups of transmission assemblies are arranged on the second connecting pipe, one group of transmission assemblies are positioned on one side of the top of the second connecting pipe, and the other group of transmission assemblies are positioned on the other side of the bottom of the second connecting pipe;
the transmission assembly comprises a gear and a chain; the gear is respectively and rotatably arranged on one side of the top and the other side of the bottom of the second connecting pipe, and a chain is wound on the gear; one end of each group of chains is connected with one side of the bottom of the third connecting pipe, and the other end of each chain passes through the second connecting pipe and is connected with the outer wall of the top of the first connecting pipe; one end of the other group of chains is connected with the other side of the bottom of the third connecting pipe, and the other end of the chain passes through the second connecting pipe and is connected with the inner top surface of the first connecting pipe;
the fixing device comprises a shell, a pull ring, a pull rod, a spring, a movable plate and an inserted link; the shell is arranged on the bottom surface of the upper bed plate, and a moving plate is connected in the shell in a sliding manner; one side surface of the moving plate is connected with one end of the pull rod; the other end of the pull rod penetrates through the shell and is connected with the shell in a sliding manner; the other end of the pull rod is connected with the pull ring; the pull rod is sleeved with a spring; one end of the spring is connected with the movable plate, and the other end of the spring is connected with the inner wall of the shell; the other side surface of the moving plate is provided with an inserted link; the inserted link passes through the shell and is connected with the shell in a sliding way; the bottom of the first connecting pipe in the other group of connecting pieces is provided with a jack; the inserted bar is matched with the jack.
Preferably, the cross bars are all located on the top of the first connecting pipe, the second connecting pipe and the third connecting pipe.
Preferably, the other end of the rotating shaft is provided with a handle.
Preferably, the first connecting pipe, the second connecting pipe and the third connecting pipe have the same length; the length of the screw is the same as that of the first connecting pipe.
The technical scheme of the invention has the following beneficial technical effects: drive bevel gear through clockwise rotation pivot and rotate, drive bevel gear drives driven bevel gear and rotates, driven bevel gear drives the screw rod and rotates, thereby make second connecting pipe downstream and shrink in first connecting pipe through drive assembly, drive third connecting pipe downstream when the second connecting pipe downstream, rethread drive assembly makes the third connecting pipe shrink in the second connecting pipe, and then realize the shrink work of ladder body, when the shrink is accomplished, rotate the ladder body along last bed board, make the ladder body be located the bottom surface of bed board, rethread fixing device inserts its inserted bar in the jack of first connecting pipe, can, the same principle, the extension of ladder body can be realized to the anticlockwise rotation pivot.
Drawings
Fig. 1 is a schematic structural view of a telescopic bunk ladder according to the present invention.
Fig. 2 is a schematic structural view of a ladder body in the telescopic bunk ladder provided by the invention.
Fig. 3 is a schematic structural view of a connection relationship between a first connection pipe, a second connection pipe, and a third connection pipe in the telescopic upper and lower berth ladder according to the present invention.
Fig. 4 is a top view of the upper deck of the telescopic bunk ladder according to the present invention.
Reference numerals:
1. a bed board is arranged; 2. a ladder body; 3. a fixing device; 4. a first connecting pipe; 5. a second connecting pipe; 6. A third connecting pipe; 7. a cross bar; 8. a handle; 9. a rotating shaft; 10. a drive bevel gear; 11. a driven bevel gear; 12. a screw; 13. a gear; 14. a chain; 15. a jack; 16. a housing; 17. a pull ring; 18. a pull rod; 19. a spring; 20. moving the plate; 21. and (4) inserting the rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Fig. 1 is a schematic structural view of a telescopic bunk ladder according to the present invention.
Fig. 2 is a schematic structural view of a ladder body in the telescopic bunk ladder provided by the invention.
Fig. 3 is a schematic structural view of a connection relationship between a first connection pipe, a second connection pipe, and a third connection pipe in the telescopic upper and lower berth ladder according to the present invention.
Fig. 4 is a top view of the upper deck of the telescopic bunk ladder according to the present invention.
As shown in fig. 1 to 4, the telescopic upper and lower berth ladder provided by the invention comprises an upper bed plate 1, a ladder body 2, a fixing device 3, a first connecting pipe 4, a second connecting pipe 5, a third connecting pipe 6 and a cross rod 7; the side wall of the upper bed plate 1 is movably connected with the top end of the ladder body 2; the bottom surface of the upper bed plate 1 is provided with a fixing device 3;
the ladder body 2 is formed by connecting two groups of connecting pieces through a cross bar 7; the connecting piece comprises a first connecting pipe 4, a second connecting pipe 5 and a third connecting pipe 6 which are arranged side by side; the cross rods 7 are arranged in three groups in parallel and are respectively positioned between two groups of first connecting pipes 4, two groups of second connecting pipes 5 and two groups of third connecting pipes 6; the bottom of the third connecting pipe 6 passes through the top of the second connecting pipe 5 and is in sliding connection with the second connecting pipe 5; the bottom of the second connecting pipe 5 passes through the top of the first connecting pipe 4 and is connected with the first connecting pipe 4 in a sliding way; a group of connecting pieces are provided with telescopic components;
the telescopic assembly comprises a handle 8, a rotating shaft 9, a driving bevel gear 10, a driven bevel gear 11, a screw 12 and a transmission assembly; the inner bottom surface of the first connecting pipe 4 is rotatably connected with a screw 12; the screw 12 may sequentially pass through the bottom of the second connection pipe 5 and the bottom of the third connection pipe 6; the bottom of the screw 12 is sleeved with a driven bevel gear 11, and the driven bevel gear 11 is meshed with the driving bevel gear 10; one end of a rotating shaft 9 is connected with a driving bevel gear 10, the other end of the rotating shaft 9 penetrates through the side wall of the first connecting pipe 4 and is rotatably connected with the first connecting pipe 4, two groups of transmission assemblies are arranged on the second connecting pipe 5, one group of transmission assemblies is positioned on one side of the top of the second connecting pipe 5, and the other group of transmission assemblies is positioned on the other side of the bottom of the second connecting pipe 5;
the transmission assembly comprises a gear 13 and a chain 14; the gear 13 is respectively and rotatably arranged on one side of the top and the other side of the bottom of the second connecting pipe 5, and a chain 14 is wound on the gear 13; one end of each group of chains 14 is connected with one side of the bottom of the third connecting pipe 6, and the other end of each chain 14 passes through the second connecting pipe 5 and is connected with the outer wall of the top of the first connecting pipe 4; one end of the chain 14 of the other group is connected with the other side of the bottom of the third connecting pipe 6, and the other end of the chain 14 passes through the second connecting pipe 5 and is connected with the inner top surface of the first connecting pipe 4;
the fixing device 3 comprises a shell 16, a pull ring 17, a pull rod 18, a spring 19, a moving plate 20 and an inserting rod 21; the shell 16 is arranged on the bottom surface of the upper bed board 1, and a moving board 20 is connected in the shell 16 in a sliding way; one side surface of the moving plate 20 is connected with one end of the pull rod 18; the other end of the pull rod 18 penetrates through the shell 16 and is connected with the shell 16 in a sliding mode; the other end of the pull rod 18 is connected with the pull ring 17; a spring 19 is sleeved on the pull rod 18; one end of the spring 19 is connected with the moving plate 20, and the other end of the spring 19 is connected with the inner wall of the shell 16; the other side surface of the moving plate 20 is provided with an inserted link 21; the inserted rod 21 penetrates through the shell 16 and is connected with the shell 16 in a sliding way; the bottom of the first connecting pipe 4 in the other group of connecting pieces is provided with a jack 15; the insert rod 21 is adapted to the insert hole 15.
According to the invention, the driving bevel gear 10 is driven to rotate by clockwise rotating the rotating shaft 9, the driving bevel gear 10 drives the driven bevel gear 11 to rotate, the driven bevel gear 11 drives the screw 12 to rotate, so that the second connecting pipe 5 moves downwards and is contracted into the first connecting pipe 4 through the transmission assembly, the second connecting pipe 5 moves downwards and simultaneously drives the third connecting pipe 6 to move downwards, the third connecting pipe 6 is contracted into the second connecting pipe 5 through the transmission assembly, and then the contraction work of the ladder body 2 is realized, when the contraction is finished, the ladder body 2 is rotated along the upper bed plate 1, so that the ladder body 2 is positioned on the bottom surface of the upper bed plate 1, and the inserting rod 21 of the ladder body is inserted into the inserting hole of the first connecting pipe 4 through the fixing device 3, and according to the same principle, the extension of the ladder body 2 can be realized by anticlockwise rotating the rotating shaft 9, so that the ladder has, The telescopic folding is convenient, and the ladder after being folded is arranged under the bed board which is not fully utilized, thereby reducing the occupation of the narrow space of the dormitory.
In an alternative embodiment the cross bars 7 are all located on top of the first connecting tube 4, the second connecting tube 5 and the third connecting tube 6, so that the ladder body 2 takes up less space when collapsed.
In an alternative embodiment, the other end of the shaft 9 is provided with a handle 8 to facilitate driving the shaft 9, thereby facilitating the function of collapsing and extending the ladder body 2.
In an alternative embodiment, the first connecting tube 4, the second connecting tube 5 and the third connecting tube 6 are the same length; the length of the screw 12 is the same as the length of the first connecting pipe 4.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (4)
1. A telescopic upper and lower berth ladder is characterized by comprising an upper bed plate (1), a ladder body (2), a fixing device (3), a first connecting pipe (4), a second connecting pipe (5), a third connecting pipe (6) and a cross rod (7); the side wall of the upper bed plate (1) is movably connected with the top end of the ladder body (2); the bottom surface of the upper bed plate (1) is provided with a fixing device (3);
the ladder body (2) is formed by connecting two groups of connecting pieces through cross bars (7); the connecting piece comprises a first connecting pipe (4), a second connecting pipe (5) and a third connecting pipe (6) which are arranged side by side; three groups of cross rods (7) are arranged in parallel and are respectively positioned between two groups of first connecting pipes (4), two groups of second connecting pipes (5) and two groups of third connecting pipes (6); the bottom of the third connecting pipe (6) penetrates through the top of the second connecting pipe (5) and is in sliding connection with the second connecting pipe (5); the bottom of the second connecting pipe (5) penetrates through the top of the first connecting pipe (4) and is in sliding connection with the first connecting pipe (4); a group of connecting pieces are provided with telescopic components;
the telescopic component comprises a handle (8), a rotating shaft (9), a driving bevel gear (10), a driven bevel gear (11), a screw rod (12) and a transmission component; the inner bottom surface of the first connecting pipe (4) is rotationally connected with a screw rod (12); the screw (12) can sequentially pass through the bottom of the second connecting pipe (5) and the bottom of the third connecting pipe (6); the bottom of the screw rod (12) is sleeved with a driven bevel gear (11), and the driven bevel gear (11) is meshed with the driving bevel gear (10); one end of a rotating shaft (9) is connected with a driving bevel gear (10), the other end of the rotating shaft (9) penetrates through the side wall of the first connecting pipe (4) and is rotatably connected with the first connecting pipe (4), two groups of transmission assemblies are arranged on the second connecting pipe (5), one group of transmission assemblies are positioned on one side of the top of the second connecting pipe (5), and the other group of transmission assemblies are positioned on the other side of the bottom of the second connecting pipe (5);
the transmission assembly comprises a gear (13) and a chain (14); the gear (13) is respectively and rotatably arranged on one side of the top and the other side of the bottom of the second connecting pipe (5), and a chain (14) is wound on the gear (13); one end of each group of chains (14) is connected with one side of the bottom of the third connecting pipe (6), and the other end of each chain (14) penetrates through the second connecting pipe (5) and is connected with the outer wall of the top of the first connecting pipe (4); one end of the chain (14) of the other group is connected with the other side of the bottom of the third connecting pipe (6), and the other end of the chain (14) passes through the second connecting pipe (5) and is connected with the top surface of the interior of the first connecting pipe (4);
the fixing device (3) comprises a shell (16), a pull ring (17), a pull rod (18), a spring (19), a moving plate (20) and an inserting rod (21); the shell (16) is arranged on the bottom surface of the upper bed plate (1), and the shell (16) is connected with a moving plate (20) in a sliding way; one side surface of the moving plate (20) is connected with one end of the pull rod (18); the other end of the pull rod (18) penetrates through the shell (16) and is connected with the shell (16) in a sliding way; the other end of the pull rod (18) is connected with the pull ring (17); a spring (19) is sleeved on the pull rod (18); one end of the spring (19) is connected with the moving plate (20), and the other end of the spring (19) is connected with the inner wall of the shell (16); the other side surface of the moving plate (20) is provided with an inserted link (21); the inserted rod (21) penetrates through the shell (16) and is connected with the shell (16) in a sliding way; the bottom of the first connecting pipe (4) in the other group of connecting pieces is provided with a jack (15); the inserted rod (21) is matched with the insertion hole (15).
2. A telescopic bunk ladder according to claim 1, characterized in that the cross bars (7) are all located on top of the first (4), second (5) and third (6) connecting pipes.
3. A telescopic bunk ladder as claimed in claim 1, characterized in that the other end of the shaft (9) is provided with a handle (8).
4. A telescopic bunk ladder according to claim 1, characterized in that the first connecting tube (4), the second connecting tube (5) and the third connecting tube (6) are of the same length; the length of the screw (12) is the same as the length of the first connecting pipe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920261170.3U CN210239573U (en) | 2019-02-28 | 2019-02-28 | Telescopic upper and lower berth ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920261170.3U CN210239573U (en) | 2019-02-28 | 2019-02-28 | Telescopic upper and lower berth ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210239573U true CN210239573U (en) | 2020-04-03 |
Family
ID=69961629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920261170.3U Expired - Fee Related CN210239573U (en) | 2019-02-28 | 2019-02-28 | Telescopic upper and lower berth ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210239573U (en) |
-
2019
- 2019-02-28 CN CN201920261170.3U patent/CN210239573U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200403 Termination date: 20210228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |