Ladder easy to store

Abstract

The utility model discloses a ladder easy to store, which comprises a ladder assembly, the ladder assembly comprises a support section and a telescopic section, the support section comprises two support vertical rods parallel to each other, and the telescopic section comprises two telescopic vertical rods parallel to each other; the supporting vertical rods are of hollow structures, the lower ends of the telescopic vertical rods are telescopically inserted into the supporting vertical rods on the same side, and the lower ends of the telescopic vertical rods and the upper ends of the supporting vertical rods are provided with aligned clamping holes; a first locking mechanism capable of controlling the telescopic vertical rod to stretch out and draw back is arranged between the supporting section and the telescopic section, the first locking mechanism comprises two clamping pins and a handle, and linkage brake cables are connected between the handle and the two clamping pins. The handle can slide between an initial position and an unlocking position in a reciprocating mode, the clamping pins can slide between a clamping position and a releasing position in a reciprocating mode, when the handle is located at the initial position, the two clamping pins are located at the clamping position, and when the handle is located at the unlocking position, the two clamping pins synchronously move to the releasing position. The storage process is convenient and fast.

Description

Technical Field

[0001] The utility model belongs to the technical field of ladders, and in particular relates to an easy-to-storage ladder. Background Art

[0002] A conventional ladder has left and right side bars and a plurality of cross braces rigidly connected between the side bars. Since there is a large open space between the cross braces and the side bars, such a conventional ladder takes up a lot of space and is extremely inconvenient to transport and store. Therefore, a ladder that can reduce its storage volume is needed. Currently, most ladders on the market use folding or telescopic methods to reduce their size, but the storage process is complicated and requires multiple steps to complete the storage, which is inconvenient to use. Summary of the invention

[0003] The utility model aims to solve the problem that the ladder storage process is complicated and inconvenient to use in the prior art, and provides a telescopic ladder. The invention objective of the utility model is achieved through the following technical solutions:

[0004] A ladder that is easy to store, comprising a ladder frame, wherein the ladder frame comprises a support section and a telescopic section from bottom to top, wherein the support section comprises two mutually parallel support uprights, wherein the telescopic section comprises two mutually parallel telescopic uprights, wherein a plurality of cross braces are arranged horizontally between the telescopic uprights; wherein the support uprights are hollow structures, wherein the lower ends of the telescopic uprights can be telescopically inserted into the support uprights on the same side, wherein the lower ends of the telescopic uprights and the upper ends of the support uprights are provided with aligned clamping holes; wherein a first locking mechanism capable of controlling the telescopic extension of the telescopic uprights is provided between the support section and the telescopic section, wherein the first locking mechanism It includes two bayonet pins and a handle arranged between the two bayonet pins, the bayonet pins include a locking end and a linkage end, the locking ends of the two bayonet pins can be respectively locked in the locking holes on the same side, and a linkage brake line is connected between the handle and the two linkage ends; the handle can slide back and forth between the initial position and the unlocking position along a first direction, and the bayonet pin can slide back and forth between the locking position and the releasing position along a second direction, and the first direction is perpendicular to the second direction, when the handle is in the initial position, the two bayonet pins are both in the locking position, and when the handle is in the unlocking position, the two bayonet pins move synchronously to the releasing position.

[0005] Preferably, the cross brace includes a first cross brace placed horizontally at the bottom of the telescopic vertical rod, the first cross brace includes two first connecting seats, and a first pedal arranged between the two first connecting seats, the first connecting seat is fixedly connected to the connecting position between the telescopic vertical rod and the supporting vertical rod, and the bayonet is slidably arranged in the first connecting seat on the same side.

[0006] Preferably, a sliding seat is installed in the first connecting seat, the locking pin is slidably inserted in the sliding seat, and the locking pin is sleeved with a first return spring; an assembly seat is fixedly provided below the first pedal, and the handle is slidably assembled on the assembly seat through the assembly pin; the assembly pin is sleeved with a second return spring.

[0007] Preferably, the handle comprises a hand-holding portion and linkage portions symmetrically arranged on both sides of the hand-holding portion, and the linkage portions are each provided with a through hole for connecting a linkage brake line; and two assembly pins are provided, which are respectively assembled on the two linkage portions.

[0008] Preferably, a support frame is provided on the assembly seat, and a pair of steering cross bars for steering the extending direction of the linkage brake line are mounted on the support frame.

[0009] Preferably, the telescopic vertical rod is formed by connecting multiple sections of hollow sleeve rods, and a second locking mechanism for controlling the telescopic movement of the hollow sleeve rods is provided between two adjacent sections of the hollow sleeve rods; the second locking mechanism includes a latch and a button for controlling the sliding movement of the latch.

[0010] Preferably, the cross brace rod also includes a plurality of second cross braces, the second cross brace rods include two second connecting seats and a second pedal rod mounted between the two second connecting seats, the second connecting seats are fixedly connected to the connecting positions of adjacent hollow sleeves, and the connecting positions of adjacent hollow sleeves are provided with corresponding sockets; the latch is slidably arranged in the second connecting seat on the same side, and the button is movably arranged below the second connecting seat.

[0011] Preferably, the button comprises a force-bearing portion and a force-applying portion, the force-bearing portion and the force-applying portion are connected at an angle, and the connecting position between the force-bearing portion and the force-applying portion is hinged on the second connecting seat through a hinge shaft.

[0012] Preferably, one end of the plug is provided with a plug that can be inserted into the socket, and the other end of the plug is provided with a force-bearing end that cooperates with the button force-applying part.

[0013] Preferably, the force-bearing portion of the button at least partially protrudes from the bottom of the second cross brace, and the button can swing under downward pressure, and its force-applying portion acts on the force-bearing end of the pin during the swinging process to provide a retreat force for the pin to escape from the socket; a make way groove for making way for the pin is provided on the button.

[0014] Compared with the prior art, the handle of the first locking mechanism of the utility model controls two latching pins at the same time. Only by pulling the handle can the locking of the two latching pins on the telescopic vertical rod be released at the same time, and the telescopic vertical rod can be retracted; the handle and the latching pin are connected by a linkage brake line, so that the downward pulling force provided by the handle acts on the two latching pins at the same time, and a steering cross bar is provided to convert the vertical downward pulling force into a horizontal unlocking force to release the locking of the two latching pins on the telescopic section, which is convenient and labor-saving; the button force-bearing part and the force-applying part of the second locking mechanism are connected at an angle, and a hinged assembly method is adopted, which can convert the impact force of the cross brace on the button into a horizontal unlocking force to release the locking of the pin on the hollow sleeve rod, thereby realizing the automatic retraction of the hollow sleeve rod section by section; the entire storage process can be achieved by only pulling down the handle, and the operation is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the first cross brace in the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the first locking mechanism in the utility model;

[0018] Figure 4 This is a schematic diagram of the handle structure in the utility model;

[0019] Figure 5 This is a schematic diagram of the bottom structure of the second connecting seat in the utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the second locking mechanism in the utility model;

[0021] Figure 7 This is a schematic diagram of the button structure in the utility model;

[0022] Markings in the figure: support section 10; support upright 11; third cross brace 12; telescopic section 20; telescopic upright 21; hollow sleeve 211; first connecting seat 221; first pedal 222; second connecting seat 231; second pedal 232; bayonet 31; locking end 311; linkage end 312; handle 32; hand-held portion 321; linkage portion 322; perforation 323; slide seat 33; assembly seat 34; support frame 341; steering cross bar 342; assembly pin 35; second return spring 36; linkage brake line 37; latch 41; plug 411; force-bearing end 412; button 42; force-bearing portion 421; force-applying portion 422; hinge shaft 423; give way slot 424. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0024] See also Figure 1-Figure 4 This embodiment discloses an easily storable ladder, which includes two ladder frames, and the upper ends of the two ladder frames are hinged to form a herringbone ladder.

[0025] The ladder frame includes a support section 10 and a telescopic section 20 from bottom to top. The support section 10 includes two mutually parallel support vertical rods 11, and the telescopic section 20 includes two mutually parallel telescopic vertical rods 21. A plurality of horizontal bracing rods are horizontally arranged between the telescopic vertical rods 21.

[0026] The support rod 11 is a hollow structure. The lower end of the telescopic rod 21 can be telescopically inserted into the support rod 11 on the same side. The lower end of the telescopic rod 21 and the upper end of the support rod 11 are provided with aligned clamping holes. A first locking mechanism capable of controlling the telescopic extension of the telescopic rod 21 is provided between the support section 10 and the telescopic section 20. The first locking mechanism comprises two bayonet pins 31 and a handle 32 arranged between the two bayonet pins 31. The bayonet pin 31 comprises a clamping end 311 and a linkage end 312. The clamping ends 311 of the two bayonet pins 31 can be respectively clamped in the clamping holes on the same side. The handle 32 A linkage brake line 37 is connected between the two linkage ends 312; the handle 32 can slide back and forth between the initial position and the unlocking position along the first direction, and the pin 31 can slide back and forth between the stopping position and the releasing position along the second direction, and the first direction is perpendicular to the second direction. Specifically, the first direction is the vertical direction, and the second direction is the horizontal direction. When the handle 32 is in the initial position, the two pins 31 are in the stopping position, so that the telescopic pole 21 and the supporting pole 11 are fixedly connected. When the handle 32 is in the unlocking position, the two pins 31 move synchronously to the releasing position, and the telescopic pole 21 can be retracted.

[0027] The cross brace includes a first cross brace placed horizontally at the bottom of the telescopic upright 21, and a third cross brace 12 placed horizontally between the supporting uprights 11; the first cross brace includes two first connecting seats 221, and a first pedal 222 mounted between the two first connecting seats 221, the first connecting seat 221 is fixedly connected to the connecting position between the telescopic upright 21 and the supporting upright 11, and the bayonet 31 is slidably arranged in the first connecting seat 221 on the same side; a sliding seat 33 is assembled in the first connecting seat 221, and the bayonet 31 is slidably arranged in the sliding seat 33 to ensure that the bayonet 31 slides in the horizontal direction, and a first return spring is mounted on the bayonet 31; an assembly seat 34 is fixedly arranged below the first pedal 222, and the handle 32 is assembled by the assembly pin 3 5 is slidably assembled on the assembly seat 34; the assembly pin 35 is sleeved with a second return spring 36; the handle 32 includes a hand-held portion 321 and linkage portions 322 symmetrically arranged on both sides of the hand-held portion 321, and the linkage portions 322 are each provided with a through hole 323 for connecting the linkage brake wire 37; there are two assembly pins 35, which are respectively assembled on the two linkage portions 322, and when the handle 32 is pulled down, the linkage brake wire 37 synchronously transmits the downward pulling force to the two latching pins 31; in order to ensure that the vertical downward pulling force is converted into a horizontal unlocking force, a support frame 341 is provided on the assembly seat 34, and a pair of steering crossbars 342 for steering the extending direction of the linkage brake wire 37 are mounted on the support frame 341, so as to more effectively utilize the downward pulling force and save more effort.

[0028] See also Figure 5-Figure 7 The telescopic vertical rod 21 is formed by a plurality of hollow rod sections, and a second locking mechanism for controlling the telescopic movement of the hollow sleeve rod 211 is provided between two adjacent hollow sleeve rods 211; the second locking mechanism includes a latch 41 and a button 42 for controlling the sliding movement of the latch 41; the cross brace rod also includes two second cross braces, the second cross brace rod includes two second connecting seats 231, and a second pedal 232 mounted between the two second connecting seats 231, the second connecting seat 231 is fixedly connected to the connecting position of the adjacent hollow sleeve rods 211, and the connecting position of the adjacent hollow sleeve rods 211 is provided with a corresponding jack; the latch 41 is slidably arranged in the second connecting seat 231 on the same side, and the button 42 is movably protruded below the second connecting seat 231, and the latch 41 and the button 42 are both equipped with a return spring.

[0029] The button 42 includes a force-bearing portion 421 and a force-applying portion 422, the force-bearing portion 421 and the force-applying portion 422 are connected at an angle, and the connecting position of the force-bearing portion 421 and the force-applying portion 422 is hinged on the second connecting seat 231 through a hinge shaft 423; one end of the pin 41 is provided with a plug 411 that can be inserted into the socket, and the other end of the pin 41 is provided with a force-bearing end 412 that cooperates with the force-applying portion 422 of the button 42; the force-bearing portion 421 of the button 42 at least partially protrudes from the bottom of the second cross brace, and the button 42 can swing under downward pressure, and its force-applying portion 422 acts on the force-bearing end 412 of the pin 41 during the swinging process, providing the pin 41 with a retreat force to escape from the socket; in order to ensure that the force-bearing end 412 of the button 42 can swing upward when subjected to pressure, a make-way groove 424 is provided on the button 42 to make way for the pin 41. After the handle 32 is pulled down, the lowest section of the hollow sleeve rod 211 moves downward, and drives the corresponding cross brace rod to move downward. When the cross brace rod moves down to the right position, the cross brace rod below forms an impact on the button 42. The force-bearing part 421 of the button 42 is connected with the force-applying part 422 at an angle, and adopts a hinged assembly method. The impact force of the cross brace rod on the button 42 can be converted into a horizontal unlocking force to release the lock of the hollow sleeve rod 211 by the latch 41, so that the hollow sleeve rod 211 can be automatically retracted section by section. The entire storage process can be achieved by pulling down the handle 32, and the operation is convenient and quick.

[0030] It should be understood that in the claims and description of the utility model, all "including..." should be understood as open-ended meanings, that is, their meanings are equivalent to "at least including...", and should not be understood as closed-ended meanings, that is, their meanings should not be understood as "only including...". 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.

[0031] The above is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should be covered by the protection scope of the utility model.

Claims

1. An easily foldable ladder, comprising a ladder frame, characterized in that: The ladder frame includes a support section and a telescopic section from bottom to top, the support section includes two mutually parallel support poles, the telescopic section includes two mutually parallel telescopic poles, and a plurality of cross braces are arranged horizontally between the telescopic poles; the support poles are hollow structures, the lower ends of the telescopic poles can be telescopically inserted into the support poles on the same side, and the lower ends of the telescopic poles and the upper ends of the support poles are provided with aligned clamping holes; a first locking mechanism capable of controlling the extension and retraction of the telescopic poles is provided between the support section and the telescopic section, and the first locking mechanism includes two bayonet pins and A handle is arranged between two latch pins, and the latch pin includes a locking end and a linkage end. The locking ends of the two latch pins can be respectively locked in the locking holes on the same side, and a linkage brake line is connected between the handle and the two linkage ends; the handle can slide back and forth between an initial position and an unlocking position along a first direction, and the latch pin can slide back and forth between a locking position and a releasing position along a second direction, and the first direction is perpendicular to the second direction. When the handle is in the initial position, the two latch pins are both in the locking position, and when the handle is in the unlocking position, the two latch pins move synchronously to the releasing position.

2. The easily foldable ladder according to claim 1, characterized in that: The cross brace includes a first cross brace placed horizontally at the bottom of the telescopic vertical rod, the first cross brace includes two first connecting seats, and a first pedal arranged between the two first connecting seats, the first connecting seat is fixedly connected to the connecting position between the telescopic vertical rod and the supporting vertical rod, and the bayonet is slidably arranged in the first connecting seat on the same side.

3. The easily foldable ladder according to claim 2, characterized in that: A sliding seat is assembled in the first connecting seat, the bayonet pin is slidably inserted in the sliding seat, and a first return spring is sleeved on the bayonet pin; an assembly seat is fixedly arranged below the first pedal, and the handle is slidably assembled on the assembly seat through the assembly pin; a second return spring is sleeved on the assembly pin.

4. The easily foldable ladder according to claim 3, characterized in that: The handle comprises a hand-holding part and linkage parts symmetrically arranged on both sides of the hand-holding part, and the linkage parts are each provided with a through hole for connecting the linkage brake wire; two assembly pins are provided and respectively assembled on the two linkage parts.

5. The easily foldable ladder according to claim 4, characterized in that: A support frame is arranged on the assembly seat, and a pair of steering cross bars for steering the extending direction of the linkage brake wire are arranged on the support frame.

6. An easily foldable ladder according to any one of claims 1 to 5, characterized in that: The telescopic vertical rod is formed by sleeve-jointing multiple sections of hollow sleeve rods, and a second locking mechanism for controlling the telescopic movement of the hollow sleeve rods is arranged between two adjacent sections of the hollow sleeve rods; the second locking mechanism comprises a latch and a button for controlling the sliding movement of the latch.

7. The easily foldable ladder according to claim 6, characterized in that: The cross brace also includes a plurality of second cross braces, which include two second connecting seats and a second pedal rod mounted between the two second connecting seats, wherein the second connecting seats are fixedly connected to the connecting positions of adjacent hollow sleeves, and the connecting positions of adjacent hollow sleeves are provided with corresponding sockets; the latch is slidably arranged in the second connecting seat on the same side, and the button is movably protruded below the second connecting seat.

8. The easily foldable ladder according to claim 7, characterized in that: The button comprises a force-bearing portion and a force-applying portion, wherein the force-bearing portion is connected to the force-applying portion at an angle, and the connecting position between the force-bearing portion and the force-applying portion is hinged on the second connecting seat through a hinge shaft.

9. The easily foldable ladder according to claim 8, characterized in that: One end of the plug is provided with a plug which can be inserted into the socket, and the other end of the plug is provided with a force-bearing end which cooperates with the force-applying part of the button.

10. The easily foldable ladder according to claim 9, characterized in that: The force-bearing portion of the button at least partially protrudes from the bottom of the second cross brace. The button can swing under downward pressure, and its force-applying portion acts on the force-bearing end of the pin during the swinging process to provide a retreat force for the pin to escape from the socket. A clearance groove for giving way to the pin is provided on the button.

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