Drawing type crawling ladder

Abstract

The utility model discloses a drawing type crawling ladder, and particularly relates to the field of crawling ladder structures, which comprises a crawling ladder arranged on the ground; the drawer is slidably connected into the crawling ladder; the opening and closing mechanism comprises a stress plate, a first transmission end, a pipeline and a second transmission end, the stress plate is in elastic sliding connection with the crawling ladder, the pipeline is fixed in the crawling ladder, the two ends of the pipeline are in airtight sliding connection with the first transmission end and the second transmission end respectively, at least one of the first transmission end and the second transmission end is in elastic connection with the corresponding end of the pipeline, and the second transmission end is fixedly connected with the drawer. By means of the force transmission characteristic of the opening and closing mechanism, a user does not need to bend down, the drawer opening and closing mode of the user is simplified, by means of the linkage characteristic of the opening and closing mechanism and the magnetic attraction mechanism, the user can conveniently open and close the drawer, and the user experience is improved. And the starting difficulty of the drawer is reduced, and meanwhile, the stability of the drawer in a closed state can be improved.

Description

Technical Field

[0001] The utility model relates to the field of ladder structures, and more specifically, to a pull-out ladder. Background Art

[0002] Most of the existing ladders installed on both sides of the stage have the function of storing items. However, this storage method is based on a drawer-type ladder structure that can be pulled out. The drawers need to be pulled out manually, and the actual operation requires bending over, which is relatively cumbersome. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a pull-out ladder to solve the above-mentioned problems.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a pull-out ladder, comprising a ladder placed on the ground; a drawer slidably connected to the ladder; an opening and closing mechanism, comprising a force-bearing plate, a first transmission end, a pipe and a second transmission end; the force-bearing plate and the ladder are elastically slidably connected, the pipe is fixed in the ladder, the two ends of the pipe are respectively sealed and slidably connected to the first transmission end and the second transmission end, at least one of the first transmission end and the second transmission end is elastically connected to the corresponding end of the pipe, the second transmission end is fixedly connected to the drawer, and the first transmission end is located on the moving path of the force-bearing plate.

[0005] In a preferred embodiment, the force plate includes a pedal and a slider, which are elastically hinged, and limit blocks are fixed on the pedal and the slider. When the pedal and the slider are horizontally unfolded, the two limit blocks are abutted against each other, and the slider is slidably connected to the side wall of the ladder.

[0006] In a preferred embodiment, the load-bearing plate is erected on the top of the ladder and is vertically slidably connected to the ladder.

[0007] In a preferred embodiment, a latch is provided across the load-bearing plate, and the latch is used to limit the downward movement of the load-bearing plate.

[0008] In a preferred embodiment, a magnetic attraction mechanism is provided in the ladder, which includes a magnet, a magnetic sheet and a transmission mechanism. The magnet is rotatably connected to the ladder, and the magnetic sheet is fixed to the drawer. When the drawer is stored in the ladder, the opposite surfaces of the magnet and the magnetic sheet are magnetically attracted to each other. When the force plate moves downward, the force plate drives the magnet to rotate through the transmission mechanism.

[0009] In a preferred embodiment, the transmission mechanism includes a rack, a gear and a transmission wheel, the rack and the gear are meshed for transmission, the rack and the force plate are fixedly connected, the gear and the transmission wheel are both rotatably connected to the ladder, the transmission wheel and the magnet are coaxially fixedly connected, and the gear and the transmission wheel are connected by a belt drive.

[0010] In a preferred embodiment, the transmission mechanism includes a gear and a rack, the gear and the magnet are coaxially fixedly connected, and a rack is fixed on the side wall of the drawer. When the drawer moves, the mutually meshing racks drive the gear to rotate.

[0011] In a preferred embodiment, the ladder includes a frame, a step surface and a side wall. The two frames are connected via the step surface, and the side walls are fixed to the sides of the frames.

[0012] In a preferred embodiment, a lift plate is hinged between the two frames, and the lift plate is located directly above the drawer.

[0013] Technical effects and advantages of this utility model:

[0014] 1. By utilizing the force transmission characteristics of the opening and closing mechanism, the user does not need to bend over, simplifying the way the user opens and closes the drawer.

[0015] 2. By utilizing the linkage characteristics of the opening and closing mechanism and the magnetic suction mechanism, the difficulty of opening the drawer can be reduced while the stability of the drawer in the closed state can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the present invention. The embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0017] Figure 1 This is a structural diagram of a pull-out ladder of the utility model.

[0018] Figure 2 The utility model is a side view of a pull-out ladder.

[0019] Figure 3 This is a diagram of the internal structure of a pull-out ladder of the present utility model.

[0020] Figure 4 This is a front view of a pull-out ladder of the present utility model.

[0021] Figure 5 This is a diagram of the connection structure of the pedal and slider of the utility model.

[0022] Figure 6 This is a schematic diagram of the installation position of the latch of the present invention.

[0023] Figure 7 This is a schematic diagram of the installation of the lift plate of the utility model.

[0024] The accompanying drawings are marked as follows: 1. Ladder; 11. Frame; 12. Step surface; 13. Side wall; 14. Lifting plate; 2. Drawer; 3. Opening and closing mechanism; 31. Force plate; 311. Pedal; 312. Slider; 32. Transmission end 1; 33. Pipe; 34. Transmission end 2; 35. Latch; 4. Magnetic attraction mechanism; 41. Magnet; 42. Magnetic sheet. DETAILED DESCRIPTION

[0025] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that the description of this disclosure will be more comprehensive and complete, and will fully convey the concepts of the example embodiments to those skilled in the art. The accompanying drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. Identical reference numerals in the figures indicate identical or similar parts, and thus repeated descriptions thereof will be omitted.

[0026] In addition, the described features, structures or characteristics can be combined in any suitable manner in one or more example embodiments. In the following description, many specific details are provided to provide a full understanding of the example embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure can be practiced while omitting one or more of the specific details, or other methods, components, steps, etc. can be adopted. In other cases, well-known structures, methods, implementations or operations are not shown or described in detail to avoid obscuring various aspects of the present disclosure.

[0027] The utility model provides Figure 1-Figure 7 The pull-out ladder shown in the figure can improve the efficiency of pulling out the drawer 2 mainly by providing a linkage structure, without the need for the user to bend over.

[0028] Example 1

[0029] A drawer 2 is slidably connected to the ladder 1, forming a pull-out ladder structure with storage capacity in the prior art, wherein the ladder 1 includes a frame 11, a step surface 12 and a side wall 13. The two frames 11 constitute a supporting frame. The step surface 12 is laid on the frame 11 as the load-bearing plane of the ladder. The side of the frame 11 is fixed with a side wall 13, forming a relatively closed space as a whole specifically for storing items.

[0030] Furthermore, the opening and closing mechanism 3 provided in the ladder 1 is used to improve the convenience of opening and closing the drawer 2 during use.

[0031] The opening and closing mechanism 3 includes a force-bearing plate 31, a transmission end 1 32, a pipe 33 and a transmission end 2 34. The force-bearing plate 31 is elastically and vertically slidably connected to the ladder 1. A pipe 33 is fixed inside the ladder 1. The two ends of the pipe 33 are respectively and hermetically slidably connected to the transmission end 1 32 and the transmission end 2 34. One or both of the transmission end 1 32 or the transmission end 2 34 are elastically connected to the corresponding ends of the pipe 33 through a spring. The transmission end 2 34 is fixedly connected to the drawer 2. The transmission end 1 32 is located on the downward movement path of the force-bearing plate 31.

[0032] In the initial state, the force-bearing plate 31 is subjected to elastic support force, and a certain distance will be maintained between it and the transmission end 1 32. When the drawer 2 needs to be opened, the user applies vertical downward pressure on the force-bearing plate 31 to allow the force-bearing plate 31 to squeeze the transmission end 1 32 downward. Under the transmission of the medium, the force is transmitted to one end of the transmission end 2 34, so that the transmission end 2 34 pushes the drawer 2 out.

[0033] Preferably, the cross-sectional area of ​​transmission end 1 32 is larger than the cross-sectional area of ​​transmission end 2 34 . According to Pascal's principle, transmission end 1 32 can drive transmission end 2 34 to move a larger distance by moving a smaller distance, so as to facilitate the opening of drawer 2 .

[0034] Preferably, a lift plate 14 is hinged between the two frames 11 , and the lift plate 14 is located directly above the drawer 2 . When the drawer 2 is not opened to the required degree, the lift plate 14 is opened to increase the space for the user to take items into the drawer 2 .

[0035] Preferably, the second transmission end 34 may be a telescopic multi-section tube to increase the telescopic distance of the second transmission end 34 .

[0036] The medium filled in the pipe 33 can be air or hydraulic oil, preferably hydraulic oil.

[0037] In one aspect of this embodiment, the force-bearing plate 31 includes a pedal 311 and a slider 312. The slider 312 is vertically slidably connected to the side wall 13. The pedal 311 and the slider 312 are elastically hinged via a coil spring. Limiting blocks are fixed to the opposing ends of the pedal 311 and the slider 312. When the pedal 311 and the slider 312 are deployed horizontally, the two limiting blocks contact each other, preventing further rotation of the pedal 311. When the pedal 311 is deployed, the user can step on or press down on the pedal 311 to move the transmission end 32 downward. When not in use, the pedal 311 retracts under the elastic force, reducing the space occupied.

[0038] Preferably, when the position of the force-bearing plate 31 in the non-working state is lower than the user's knees, it is recommended that the user use a foot-operated method to open the drawer 2, and when storing items, one foot stepping on the force-bearing plate 31 can keep the drawer 2 continuously and stably open. When the drawer 2 needs to be closed, the foot is removed, and the drawer 2 is driven to reset by the transmission end 2 34 under the action of the elastic force and retracted into the ladder 1.

[0039] In another aspect of this embodiment, the load-bearing plate 31 is arranged as a handrail structure and is positioned higher in a non-use state, so as to provide greater safety for users when climbing up and down the ladder.

[0040] The force-bearing plate 31 is vertically slidably connected to the step surface 12. Preferably, the force-bearing plate 31 is in the shape of an inverted U, and a latch 35 is set across the two arms of the U. When it is necessary to limit the position of the force-bearing plate 31, the latch 35 is inserted across the two arms of the force-bearing plate 31. When it is necessary to press the force-bearing plate 31 downward, the latch 35 is pulled out. In this way, the movable force-bearing plate 31 can be used to drive the drawer 2 to open or close.

[0041] Example 2

[0042] On the basis of the above structure, a magnetic attraction mechanism 4 is also provided, including a magnet 41, a magnetic sheet 42 and a transmission mechanism. The magnet 41 is rotatably connected between the two frames 11. The magnet 41 is divided into an A side and a B side. The magnetic sheet 42 is fixed on the drawer 2. When the drawer 2 is closed, the A side of the magnet 41 and the magnetic sheet 42 are magnetically attracted to each other, thereby improving the stability of the drawer 2 placed in the ladder 1; when the drawer 2 is opened, the transmission mechanism drives the magnet 41 to rotate and rotates the A side away from the magnetic sheet 42. The rotation to reduce the magnetic attraction force is more labor-saving than the horizontal pulling to reduce the magnetic attraction force, thereby reducing the magnetic attraction force between the magnet 41 and the magnetic sheet 42 so that the drawer 2 can be opened conveniently.

[0043] In the first case of this embodiment, the transmission mechanism includes a rack, a gear and a transmission wheel, wherein the rack and the force plate 31 are fixedly connected, the gear and the transmission wheel are both rotatably connected to the frame 11, the transmission wheel and the magnet 41 are coaxially fixedly connected, and the gear and the transmission wheel are connected by a belt drive; when the force plate 31 moves downward and has not yet contacted the transmission end 32, the gear is driven to rotate by the rack, and then the transmission wheel is driven to rotate, and the magnet 41 is driven to rotate to separate the A surface of the magnet 41 and the magnetic sheet 42, thereby reducing the magnetic attraction between the magnet 41 and the magnetic sheet 42.

[0044] In the second case of this embodiment, the transmission mechanism includes a gear and a rack, the gear and the magnet 41 are coaxially fixedly connected, and a rack is fixed on the side wall of the drawer 2. When the drawer 2 moves, the mutually meshing racks drive the gear to rotate to separate the A side of the magnet 41 and the magnetic sheet 42, thereby reducing the magnetic attraction between the magnet 41 and the magnetic sheet 42.

[0045] Comparing the two situations, the first one is more convenient to operate.

[0046] It should be noted that the coordination relationship between the rack and the gear is mainly that, during one opening or closing process of the drawer 2 , the number of rotations of the magnet 41 is recommended to be one circle.

[0047] In summary, the main improvements of this application are:

[0048] 1. By utilizing the force transmission characteristics of the opening and closing mechanism 3, the user does not need to bend over, thus simplifying the way the user opens and closes the drawer 2.

[0049] 2. By utilizing the linkage characteristics of the opening and closing mechanism 3 and the magnetic attraction mechanism 4, the difficulty of opening the drawer 2 can be reduced while the stability of the drawer 2 in the closed state can be improved.

[0050] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pull-out ladder, characterized in that include: A ladder (1) is placed on the ground; A drawer (2) is slidably connected to the ladder (1); The opening and closing mechanism (3) comprises a force-bearing plate (31), a first transmission end (32), a pipe (33) and a second transmission end (34); the force-bearing plate (31) is elastically slidably connected to the ladder (1); the pipe (33) is fixed in the ladder (1); two ends of the pipe (33) are respectively airtightly slidably connected to the first transmission end (32) and the second transmission end (34); at least one of the first transmission end (32) and the second transmission end (34) is elastically connected to the corresponding end of the pipe (33); the second transmission end (34) is fixedly connected to the drawer (2); and the first transmission end (32) is located on the moving path of the force-bearing plate (31).

2. A pull-out ladder according to claim 1, characterized in that: The force-bearing plate (31) comprises a pedal (311) and a slider (312); the pedal (311) and the slider (312) are elastically hinged; limit blocks are fixed on the pedal (311) and the slider (312); when the pedal (311) and the slider (312) are horizontally unfolded, the two limit blocks abut against each other, and the slider (312) is slidably connected to the side wall of the ladder (1).

3. A pull-out ladder according to claim 1, characterized in that: The force-bearing plate (31) is erected on the top of the ladder (1) and is vertically slidably connected to the ladder (1).

4. A pull-out ladder according to claim 3, characterized in that: A latch (35) is disposed across the force-bearing plate (31), and the latch (35) is used to limit the downward movement of the force-bearing plate (31).

5. A pull-out ladder according to any one of claims 1 to 4, characterized in that: The ladder (1) is provided with a magnetic attraction mechanism (4), the magnetic attraction mechanism (4) comprising a magnet (41), a magnetic sheet (42) and a transmission mechanism, the magnet (41) is rotatably connected to the ladder (1), the magnetic sheet (42) is fixed to the drawer (2), when the drawer (2) is stored in the ladder (1), the opposite surfaces of the magnet (41) and the magnetic sheet (42) are magnetically attracted to each other, and when the force plate (31) moves downward, the force plate (31) drives the magnet (41) to rotate through the transmission mechanism.

6. A pull-out ladder according to claim 5, characterized in that: The transmission mechanism comprises a rack, a gear and a transmission wheel, the rack and the gear are meshed for transmission, the rack and the force plate (31) are fixedly connected, the gear and the transmission wheel are both rotatably connected to the ladder (1), the transmission wheel and the magnet (41) are coaxially fixedly connected, and the gear and the transmission wheel are connected via a belt drive.

7. The pull-out ladder according to claim 5, characterized in that: The transmission mechanism comprises a gear and a rack. The gear and the magnet (41) are coaxially fixedly connected. A rack is fixed on the side wall of the drawer (2). When the drawer (2) moves, the mutually meshing racks drive the gear to rotate.

8. The pull-out ladder according to claim 1, characterized in that: The ladder (1) comprises a frame (11), a step surface (12) and a side wall (13); the two frames (11) are connected via the step surface (12); and the side wall (13) is fixed to the side of the frame (11).

9. A pull-out ladder according to claim 8, characterized in that: A lift plate (14) is hinged between the two frames (11), and the lift plate (14) is located directly above the drawer (2).

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