CN108868572B - Novel height-adjustable multifunctional ladder for agriculture - Google Patents

Abstract

The present invention relates to an agricultural implement, more specifically a new type of adjustable height multifunctional ladder for agriculture, which includes the main railing of the ladder, the supporting legs of the ladder, the auxiliary supporting legs and the pedals. The device has a single ladder and a There are two functions of multi-person platform, and the device has the function of heightening, which can be adjusted according to specific conditions. The structure of the device is simple and reasonable, and it is easy to operate. The main railing of the ladder is in movable contact with the supporting legs of the ladder; the supporting legs of the ladder are connected with the auxiliary supporting legs; .

Description

A New Type Adjustable Height Multifunctional Ladder for Agriculture

technical field

The invention relates to an agricultural tool, in particular to a novel multi-functional height-adjustable ladder for agriculture.

Background technique

The ladder is a kind of agricultural tool. Ordinary folding ladders can only be used by one person and cannot be used by two people. In order to increase the practicability of the ladder, a new type of adjustable height multifunctional ladder for agriculture is designed to solve this problem.

Contents of the invention

The main technical problem to be solved by the present invention is to provide a new type of height-adjustable multifunctional ladder for agriculture. The device has two functions of a single-person ladder and a multi-person platform, and the device has a height-increasing function, which can be adjusted according to specific conditions. The structure of the device is simple and reasonable, and the operation is convenient.

In order to solve the above-mentioned technical problems, the present invention relates to an agricultural tool, more specifically a new type of adjustable height multifunctional ladder for agriculture, which includes the main railing of the ladder, the supporting legs of the ladder, the auxiliary supporting legs, and the pedals. The device has two functions of a single-person ladder and a multi-person platform, and the device has a height-increasing function, which can be adjusted according to specific conditions. The device has a simple and reasonable structure and is easy to operate.

The main railing of the ladder includes a railing frame and hidden supporting legs, the railing frame and the hidden supporting legs are adapted through grooves, the railing frame and the hidden supporting legs are connected by movable contact with fastening bolts, and the railing frame and the pedals are connected by fastening bolts Movable contact connection, fixed contact connection between railing frame and ladder support legs;

The railing frame includes a railing body, a square clamping piece, a supporting spring, a side fixed cover, a T-shaped control handle, a clamping fastening bolt, and a gear clamping piece. The square clamping piece is adapted to the main body of the railing through a through hole, and the supporting spring One is adapted to the main body of the railing through the groove, the square clamp is fixedly connected with the support spring, the T-shaped control handle is engaged with the square clamp through threads, the support spring is wrapped around the outside of the T-shaped control handle, and the T-shaped The control handle is adapted to the side fixed cover through the through hole, the side fixed cover is fixed on the main body of the railing through fastening screws, the square clamping part is adapted to the hidden support leg through the groove, and the gear clamping part and the main body of the railing are fixed through fastening screws Fixed contact connection, clamping fastening bolts connect the supporting leg one with the main body of the railing in movable contact;

The hidden support legs include the first hidden leg and the second hidden leg, the first hidden leg is fixedly contacted with the railing frame through a square clamp, and the second hidden leg is connected with the first hidden leg in movable contact;

Hidden leg 1 includes special-shaped fixed cover, special-shaped through hole, support spring 2, control rod 1, L-shaped clamping piece, movable roller, hidden leg 1 is provided with special-shaped through-hole, special-shaped through-hole is adapted to control rod, control rod The first engages with the L-shaped locking part through threads, the L-shaped locking part adapts to the special-shaped through hole, the L-shaped locking part adapts to the hidden leg 2 through the groove, and one end of the support spring 2 is in contact with the control rod 1 , the other end of the supporting spring 2 is in contact with the special-shaped fixed cover, and the special-shaped fixed cover is fixed on the hidden leg 1 by fastening screws, the movable roller is connected with the hidden leg 1 through fastening screws, and the movable roller is connected with the hidden leg 2 through the concave slot fits;

A track groove 1 is arranged on the hidden leg 2, and the track groove 1 is adapted to the movable roller;

The supporting legs of the ladder include the first supporting leg, the heightening piece and the second supporting leg, the first supporting leg and the second supporting leg are connected in movable contact, the first supporting leg is connected in movable contact with the railing frame, and the heightening member is connected in movable contact with the second supporting leg;

The supporting leg-includes a main body of the leg-body, a triangular clip, a strong spring, a switch push button, and a cover. The spring one is adapted to the main body of the leg through the groove, the triangular locking part is engaged with the gear locking part, the switch push button is engaged with the triangular locking part through threads, the switch push button is adapted to the cover through the through hole, and the cover passes through fastening screws fixed on the leg-body;

A strip-shaped through hole is arranged on the cover, and the strip-shaped through hole is adapted to the switch push button;

The height-increasing part is provided with a track groove 2, and the track groove 2 is compatible with the support leg 2;

The supporting leg 2 includes the main body of the leg 2, the top fixed cover, the hemispherical positioning piece, the strong spring 2, the strong spring 3, the bottom fixed cover, the control rod 2, the moving roller, the U-shaped clamping piece, and the number of the hemispherical positioning piece. Two, and adapt to the main body of the second leg through the through hole, the hemispherical locator adapts to the main body of the first leg through the through hole, the strong spring 2 adapts to the main body of the second leg through the groove, and the strong spring 2 is fixed to the hemispherical locating member Contact connection, the top fixed cover is fixed on the main body of the second leg through fastening screws, the top fixed cover is in contact with the hemispherical positioning part, the strong spring three is adapted to the main body of the second leg through the groove, and the U-shaped clamping part is connected to the main body of the second leg Through the through hole, the strong spring three is fixedly connected with the U-shaped clamping part, the control rod two is engaged with the U-shaped clamping part through the thread, the control rod two is adapted to the bottom fixed cover through the through hole, and the bottom fixed cover passes through The fastening screw is fixed on the main body of the second leg, the moving roller is connected with the bottom of the main body of the second leg through movable contact with the fastening screw, and the moving roller is adapted to the second groove of the track;

The auxiliary support leg includes the main body of the auxiliary leg, an internal fixed cover, a rotating connector, a rotating and fixed connector, a small switch, a snap-in fixed cover, a support spring, and a T-shaped positioning member. The rotating connector and the main body of the auxiliary leg are in movable contact through grooves Connection, the internal fixed cover is compatible with the rotating connecting piece through the through hole, the internal fixed cover is fixed on the main body of the auxiliary leg through fastening screws, the rotating fixed connecting piece is connected with the rotating fixed connecting piece in movable contact, and the rotating fixed connecting piece and the main body of the railing pass through The groove is adapted, the small switch is engaged with the T-shaped locating piece through the thread, the T-shaped locating piece is adapted to the main body of the auxiliary leg through the through hole, the T-shaped locating piece is adapted to the clamping fastening bolt through the groove, and the supporting spring three Adapt to the main body of the auxiliary leg through the groove, the support spring three is fixedly connected with the T-shaped positioning piece, the small switch is adapted to the fixed cover through the through hole, and the fixed cover is fixed on the main body of the auxiliary leg by fastening screws;

The rotating connecting piece includes the rotating piece main body and the rotating piece fixing cover. The rotating fixing connecting piece is adapted to the rotating piece main body through the groove, the rotating piece fixing cover is adapted to the rotating fixing connecting piece through the through hole, and the rotating piece fixing cover is passed through the fastening screw. fixed on the main body of the rotating part;

The main railing of the ladder is in movable contact with the supporting legs of the ladder; the supporting legs of the ladder are connected with the auxiliary supporting legs; .

As a further optimization of the technical solution, the number of pedals described in a novel agricultural height-adjustable multifunctional ladder of the present invention is four.

As a further optimization of the technical solution, there are two ladder support legs and two hidden support legs in a novel agricultural height-adjustable multifunctional ladder of the present invention.

As a further optimization of the technical solution, the material of the supporting spring one, the supporting spring two, the strong spring one, the strong spring two, the strong spring three and the supporting spring three described in a novel agricultural height-adjustable multifunctional ladder of the present invention All are carbon steel.

As a further optimization of the technical solution, a non-slip rubber pad is provided on the surface of the pedals of a novel height-adjustable multifunctional ladder for agriculture of the present invention.

As a further optimization of the technical solution, the materials of the movable rollers and the moving rollers of the novel agricultural height-adjustable multifunctional ladder of the present invention are all hard plastic.

As a further optimization of the technical solution, the position of the main railing of the ladder and the auxiliary support legs of a new type of agricultural height-adjustable multifunctional ladder of the present invention are parallel.

As a further optimization of the technical solution, the left end of the hidden leg 2 of a novel agricultural height-adjustable multifunctional ladder of the present invention is provided with an anti-slip thread.

The beneficial effects of a novel agricultural height-adjustable multifunctional ladder of the present invention are:

The invention is a new adjustable height multifunctional ladder for agriculture. The device has two functions of a single-person ladder and a multi-person platform, and the device has a height-increasing function, which can be adjusted according to specific conditions. The device has a simple and reasonable structure and is easy to operate. .

Description of drawings

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific implementation methods.

Fig. 1 is a structural schematic diagram of Form 1 of a novel height-adjustable multifunctional ladder for agriculture of the present invention.

Fig. 2 is a structural schematic diagram of the second form of a novel height-adjustable multifunctional ladder for agriculture of the present invention.

Fig. 3 is a structural schematic diagram of the third form of a novel height-adjustable multifunctional ladder for agriculture of the present invention.

FIG. 4 is a schematic diagram of the cross-sectional structure of A-A in FIG. 2 .

FIG. 5 is a schematic diagram of the cross-sectional structure of B-B in FIG. 2 .

FIG. 6 is a schematic cross-sectional structure diagram of C-C in FIG. 2 .

FIG. 7 is a schematic diagram of a partial cross-sectional structure of D in FIG. 2 .

FIG. 8 is a schematic diagram of the cross-sectional structure of E-E in FIG. 2 .

FIG. 9 is a schematic diagram of the cross-sectional structure of F-F in FIG. 2 .

FIG. 10 is a schematic diagram of the cross-sectional structure of G-G in FIG. 1 .

FIG. 11 is a schematic diagram of the cross-sectional structure of H-H in FIG. 1 .

FIG. 12 is a schematic diagram of a partial cross-sectional structure of I in FIG. 2 .

In the figure: ladder main railing 1; railing frame 1-1; railing main body 1-1-1; square clamping piece 1-1-2; supporting spring 1-1-3; side fixing cover 1-1-4; T-shaped control handle 1-1-5; locking fastening bolt 1-1-6; gear locking piece 1-1-7; hidden support leg 1-2; hidden leg 1-2-1; special-shaped fixed cover 1-2-1-1; Special-shaped through hole 1-2-1-2; Support spring 2 1-2-1-3; Control rod 1-2-1-4; L-shaped clamping piece 1-2- 1-5; movable roller 1-2-1-6; hidden leg two 1-2-2; track groove one 1-2-2-1; ladder support leg 2; support leg one 2-1; leg one main body 2-1-1; triangular clip 2-1-2; strong spring 2-1-3; switch push button 2-1-4; cover 2-1-5; strip through hole 2-1-5 -1; heightening piece 2-2; track groove two 2-2-1; supporting leg two 2-3; leg two main body 2-3-1; top fixed cover 2-3-2; hemispherical positioning piece 2- 3-3; strong spring two 2-3-4; strong spring three 2-3-5; bottom fixed cover 2-3-6; control rod two 2-3-7; moving roller 2-3-8; U-shaped Position piece 2-3-9; auxiliary support leg 3; auxiliary leg main body 3-1; internal fixed cover 3-2; rotating connector 3-3; rotating part main body 3-3-1; 3-2; rotating and fixed connecting piece 3-4; small switch 3-5; card position fixing cover 3-6; support spring three 3-7; T-shaped positioning piece 3-8; pedal 4.

Detailed ways

Specific implementation mode one:

Below in conjunction with Figures 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12, this embodiment will be described. Height-adjustable multifunctional ladder, including ladder main railing 1, ladder support leg 2, auxiliary support leg 3, foot pedal 4, this device has two functions of single ladder and multi-person platform, and the device has the function of increasing height, which can be It can be adjusted according to specific conditions, the structure of the device is simple and reasonable, and the operation is convenient.

The ladder main railing 1 includes a railing frame 1-1, a hidden support leg 1-2, the railing frame 1-1 is adapted to the hidden supporting leg 1-2 through a groove, and the railing frame 1-1 is connected to the hidden supporting leg 1-2. 2 is connected by movable contact with fastening bolts, railing frame 1-1 is connected with pedal 4 through movable contact with fastening bolts, railing frame 1-1 is fixedly contacted with ladder support leg 2, and railing frame 1-1 is connected with hidden support leg 1-2 are the supporting frame of the device;

The railing frame 1-1 includes a railing main body 1-1-1, a square clip 1-1-2, a support spring 1-1-3, a side fixing cover 1-1-4, and a T-shaped control handle 1-1- 5. Locking fastening bolts 1-1-6, gear locking parts 1-1-7, square locking parts 1-1-2 and railing main body 1-1-1 through through holes, supporting springs 1-1 -1-3 is compatible with the railing main body 1-1-1 through the groove, the square clip 1-1-2 is fixedly connected with the support spring 1-1-3, and the T-shaped control handle 1-1-5 is connected with The square clamping parts 1-1-2 are engaged by threads, the support spring 1-1-3 is wrapped on the outside of the T-shaped control handle 1-1-5, and the T-shaped control handle 1-1-5 is connected to the side fixed cover 1 -1-4 is adapted through the through hole, the side fixing cover 1-1-4 is fixed on the railing main body 1-1-1 by fastening screws, and the square clamping piece 1-1-2 and the hidden support leg 1-2 pass through The groove is compatible, the gear clamping part 1-1-7 is fixedly contacted with the railing main body 1-1-1 through the fastening screw, and the clamping fastening bolt 1-1-6 connects the supporting leg 1-2-1 with the railing main body 1-1-1 movable contact connection, the square clamping piece 1-1-2 plays the role of fixing the position, the support spring 1-1-3 plays the role of supporting the square clamping piece 1-1-2, T-shaped The control handle 1-1-5 plays the role of controlling the square clamping piece 1-1-2, the side fixing cover 1-1-4 plays the role of fixing the parts, and the gear clamping piece 1-1-7 plays the role of fixing the position role;

Hidden support leg 1-2 includes hidden leg one 1-2-1, hidden leg two 1-2-2, hidden leg one 1-2-1 and railing frame 1-1 are fixed by square clip 1-1-2 Contact connection, hidden leg two 1-2-2 and hidden leg one 1-2-1 movable contact connection, hidden leg one 1-2-1 and hidden leg two 1-2-2 play the role of supporting device;

Hidden leg 1-2-1 includes special-shaped fixed cover 1-2-1-1, special-shaped through hole 1-2-1-2, support spring 2 1-2-1-3, control rod 1-2-1 -4, L-shaped card position piece 1-2-1-5, movable roller 1-2-1-6, hidden leg 1-2-1 is provided with special-shaped through-hole 1-2-1-2, special-shaped through-hole 1-2-1-2 The hole 1-2-1-2 is compatible with the control rod one 1-2-1-4, and the control rod one 1-2-1-4 is engaged with the L-shaped clamping part 1-2-1-5 through threads, The L-shaped clamping part 1-2-1-5 is adapted to the special-shaped through hole 1-2-1-2, and the L-shaped clamping part 1-2-1-5 and the hidden leg 1-2-2 pass through the groove Compatible, one end of support spring two 1-2-1-3 is in contact with control pull bar one 1-2-1-4, and the other end of support spring two 1-2-1-3 is in contact with special-shaped fixed cover 1-2- 1-1 contact, the special-shaped fixed cover 1-2-1-1 is fixed on the hidden leg 1-2-1 by fastening screws, and the movable roller 1-2-1-6 is connected with the hidden leg 1-2-1 Connected through the movable contact of the fastening screw, the movable roller 1-2-1-6 is compatible with the hidden leg 1-2-2 through the groove, and the special-shaped fixed cover 1-2-1-1 plays the role of fixing parts and supports The spring two 1-2-1-3 plays the role of supporting the L-shaped clamping part 1-2-1-5, and the L-shaped clamping part 1-2-1-5 plays the role of fixing the position, and the control pull rod one 1 -2-1-4 plays the role of controlling the L-shaped clamping part 1-2-1-5, and the movable roller 1-2-1-6 plays the role of auxiliary movement;

The hidden leg two 1-2-2 is provided with a track groove 1-2-2-1, and the track groove 1-2-2-1 is compatible with the movable roller 1-2-1-6;

Ladder support leg 2 comprises support leg one 2-1, heightening piece 2-2, support leg two 2-3, support leg one 2-1 and support leg two 2-3 movable contact connection, support leg one 2-1 and railing Frame 1-1 is movable contact connection, and heightening part 2-2 is movable contact connection with support leg two 2-3, and support leg one 2-1 and heightening part 2-2 are the support legs of device, and support leg two 2-3 plays heightened effect;

Support leg 1 2-1 includes leg 1 main body 2-1-1, triangular clamping part 2-1-2, strong spring 1 2-1-3, switch push button 2-1-4, cover 2-1-5 , the triangular clamping part 2-1-2 is compatible with the leg one main body 2-1-1 through the through hole, the strong spring one 2-1-3 is fixedly contacted and connected with the triangular clamping part 2-1-2, the strong spring one 2-1-3 is compatible with the leg-main body 2-1-1 through the groove, the triangular locking part 2-1-2 is engaged with the gear locking part 1-1-7, and the switch push button 2-1-4 Engage with the triangular clamping part 2-1-2 through the thread, the switch push button 2-1-4 is compatible with the cover 2-1-5 through the through hole, and the cover 2-1-5 is fixed on the leg 1 by fastening screws The main body 2-1-1, the triangular clamping part 2-1-2 plays the role of fixing the position, the strong spring 2-1-3 plays the role of supporting the triangular clamping part 2-1-2, and the cover 2-1 -5 plays the role of fixing parts, and the switch push button 2-1-4 plays the role of controlling the triangular clamping part 2-1-2;

The cover 2-1-5 is provided with a strip-shaped through hole 2-1-5-1, and the strip-shaped through hole 2-1-5-1 is adapted to the switch push button 2-1-4;

The height-increasing part 2-2 is provided with a track groove 2 2-2-1, and the track groove 2 2-2-1 is adapted to the support leg 2 2-3;

Support leg two 2-3 includes leg two main body 2-3-1, top fixed cover 2-3-2, hemispherical positioning part 2-3-3, strong spring two 2-3-4, strong spring three 2-3 -5, bottom fixed cover 2-3-6, control rod two 2-3-7, moving roller 2-3-8, U-shaped clamping part 2-3-9, hemispherical positioning part 2-3-3 Number has two, and adapts with leg two main bodies 2-3-1 by through hole, hemispherical spacer 2-3-3 and leg one main body 2-1-1 adapts by through hole, strong spring two 2 -3-4 is adapted to the leg two main body 2-3-1 through the groove, the strong spring two 2-3-4 is fixedly contacted and connected with the hemispherical positioning part 2-3-3, and the top fixed cover 2-3-2 passes through The fastening screw is fixed on the main body 2-3-1 of the second leg, the top fixed cover 2-3-2 is in contact with the hemispherical locator 2-3-3, and the strong spring 3 2-3-5 is connected with the main body 2-3-1 of the second leg. 3-1 adapts through the groove, the U-shaped clamping part 2-3-9 adapts to the leg two main body 2-3-1 through the through hole, the strong spring three 2-3-5 and the U-shaped clamping part 2- 3-9 fixed contact connection, the control pull rod two 2-3-7 is engaged with the U-shaped clamping part 2-3-9 through threads, and the control pull rod two 2-3-7 and the bottom fixed cover 2-3-6 pass through The holes are compatible, the bottom fixed cover 2-3-6 is fixed on the main body 2-3-1 of the second leg by fastening screws, and the bottom of the mobile roller 2-3-8 and the main body 2-3-1 of the second leg is fixed by fastening screws Movable contact connection, moving roller 2-3-8 is compatible with track groove 2 2-2-1, strong spring 3 2-3-5 plays the role of supporting U-shaped clamping part 2-3-9, U-shaped The clamping part 2-3-9 plays the role of fixing the position, the control rod two 2-3-7 plays the role of controlling the U-shaped clamping part 2-3-9, and the moving roller 2-3-8 plays the role of auxiliary movement The role of the bottom fixed cover 2-3-6 plays the role of fixing parts;

The auxiliary support leg 3 includes the main body of the auxiliary leg 3-1, an internal fixed cover 3-2, a rotating connector 3-3, a rotating and fixed connector 3-4, a small switch 3-5, a card position fixing cover 3-6, and a support spring Three 3-7, T-shaped positioning part 3-8, the rotating connecting part 3-3 is connected with the main body of the auxiliary leg 3-1 through the movable contact of the groove, and the internal fixed cover 3-2 is connected with the rotating connecting part 3-3 through the through hole To adapt, the internal fixed cover 3-2 is fixed on the auxiliary leg main body 3-1 by fastening screws, the rotating fixed connecting piece 3-4 is in movable contact connection with the rotating fixed connecting piece 3-4, and the rotating fixed connecting piece 3-4 is connected with the railing The main body 1-1-1 is adapted through the groove, the small switch 3-5 is engaged with the T-shaped positioning part 3-8 through the thread, and the T-shaped positioning part 3-8 is adapted to the auxiliary leg main body 3-1 through the through hole. The T-shaped locator 3-8 is compatible with the clamping bolt 1-1-6 through the groove, the supporting spring three 3-7 is compatible with the auxiliary leg main body 3-1 through the groove, and the supporting spring three 3-7 is compatible with the auxiliary leg main body 3-1. The T-shaped positioning part 3-8 is fixedly contacted and connected, the small switch 3-5 is compatible with the card position fixing cover 3-6 through the through hole, and the card position fixing cover 3-6 is fixed on the auxiliary leg main body 3-1 by fastening screws , the internal fixed cover 3-2 plays the role of fixing the rotating connecting piece 3-3, the rotating connecting piece 3-3 plays the role of connecting, and the rotating fixed connecting piece 3-4 plays the role of connecting the railing main body 1-1-1 , the small switch 3-5 plays the role of controlling the T-shaped positioning part 3-8, the T-shaped positioning part 3-8 plays the role of fixing the position, and the support spring three 3-7 plays the role of supporting the T-shaped positioning part 3-8 function, the card position fixing cover 3-6 plays the role of fixing parts;

Rotating connector 3-3 comprises rotating member main body 3-3-1, rotating member fixed cover 3-3-2, and rotating fixed connecting member 3-4 and rotating member main body 3-3-1 are adapted by groove, and rotating member The fixed cover 3-3-2 is compatible with the rotating fixed connector 3-4 through the through hole, and the fixed cover 3-3-2 of the rotating part is fixed on the rotating part main body 3-3-1 by fastening screws, and the rotating part main body 3 -3-1 plays the role of connecting and rotating, and the rotating part fixing cover 3-3-2 plays the role of fixing the rotating and fixing connecting part 3-4;

The main railing 1 of the ladder is in movable contact with the supporting leg 2 of the ladder; the supporting leg 2 of the ladder is connected with the auxiliary supporting leg 3; 3. Via fastening bolts, active contact connection.

Specific implementation mode two:

Below in conjunction with Fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 illustrate this embodiment, this embodiment will further describe embodiment one, the individual of described pedal 4 The number is four.

Specific implementation mode three:

Below in conjunction with Fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 illustrate this embodiment mode, this embodiment mode will further explain embodiment one, described ladder support leg 2 and hidden There are two supporting legs 1-2.

Specific implementation mode four:

Below in conjunction with Fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 illustrate this embodiment mode, this embodiment mode will further explain embodiment one, described support spring one 1-1 -3, the material of support spring two 1-2-1-3, strong spring one 2-1-3, strong spring two 2-3-4, strong spring three 2-3-5 and support spring three 3-7 For carbon steel.

Specific implementation mode five:

Below in conjunction with Fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 illustrate this embodiment, this embodiment will further describe embodiment one, the surface of described pedal 4 Set with non-slip rubber pad.

Specific implementation method six:

Below in conjunction with Fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, this embodiment will be described. This embodiment will further describe Embodiment 1. The movable roller 1-2- The material of 1-6 and moving roller 2-3-8 is hard plastic.

Specific implementation mode seven:

Below in conjunction with Fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 illustrate this embodiment, this embodiment will further explain Embodiment 1, described ladder main railing 1 and auxiliary The positions of the supporting legs 3 are parallel.

Specific implementation mode eight:

Below in conjunction with Fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 illustrate this embodiment mode, this embodiment mode will further explain embodiment one, described hidden leg two 1-2 The left end of -2 is provided with an anti-slip thread.

How to use the device: The initial form of the device is a single-person folding ladder, push down the switch push button 2-1-4, make the triangular locking part 2-1-2 disengage from the gear locking part 1-1-7, and turn the ladder The supporting leg 2 reaches the position perpendicular to the main railing 1 of the ladder, restores the triangular locking part 2-1-2, moves the control rod 2 2-3-7, and makes the U-shaped locking part 2-3-9 separate from the heightening part 2- 2. Move the moving roller 2-3-8 to the other end of the track groove 2-2-1, turn the heightening piece 2-2 so that the heightening piece 2-2 is perpendicular to the position of the supporting leg 1 2-1, and place the U The shape clamping part 2-3-9 restores; pull the T-shaped control handle 1-1-5, turn the hidden support leg 1-2 to a position perpendicular to the railing frame 1-1, and turn the T-shaped control handle 1-1- 5 Restore and fix, press the control lever 1-2-1-4 to make the L-shaped clamping part 1-2-1-5 separate from the hidden leg 2 1-2-2, and move the movable roller 1-2-1-6 Move to the other end of the track groove 1-2-2-1, turn the hidden leg 1-2-2 so that it is perpendicular to the position of the hidden leg 1-2-1, and restore the L-shaped clamping part 1-2 -1-5 fixed; push the auxiliary support leg 3 upwards, one end of the auxiliary support leg 3 is fixed on the ladder support leg 2 through the T-shaped positioning piece 3-8, and the other end lifts the rotating and fixed connecting piece 3-4, After adapting to the railing main body 1-1-1 through the groove, the rotating fixed connecting piece 3-4 is rotated 90 degrees to play the role of connection, and this time it is a multi-person climbing platform.

Knead the hemispherical positioning piece 2-3-3 at both ends, stretch the supporting leg 2-3 to an appropriate position, and the hemispherical positioning piece 2-3-3 is adapted to the main body 2-1-1 of the leg one again through the through hole , press the control lever one 1-2-1-4 to make the L-shaped clamping part 1-2-1-5 disengage from the hidden leg two 1-2-2, and move the movable roller 1-2-1-6 to the track At the other end of the groove one 1-2-2-1, turn the hidden leg two 1-2-2 so that it is on the same vertical line as the hidden leg one 1-2-1 and restore the L-shaped clamping part 1-2- 1-5 is fixed, at this time it is a multi-person climbing platform in an increased state.

Restore the above operation, and climb the ladder for a single person.

The device has two functions of a single-person ladder and a multi-person platform, and the device has a height-increasing function, which can be adjusted according to specific conditions. The device has a simple and reasonable structure and is easy to operate.

Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or replacements made by those skilled in the art within the scope of the present invention also belong to the scope of the present invention. protected range.

Claims (8)

1. the utility model provides a new-type agricultural is with multi-functional ladder of adjustable height, includes ladder main railing (1), ladder supporting leg (2), auxiliary supporting leg (3), running-board (4), its characterized in that: the main ladder railing (1) comprises a railing frame (1-1) and hidden support legs (1-2), wherein the railing frame (1-1) and the hidden support legs (1-2) are adapted through grooves, the railing frame (1-1) and the hidden support legs (1-2) are movably connected in contact through fastening bolts, the railing frame (1-1) and a pedal (4) are movably connected in contact through the fastening bolts, and the railing frame (1-1) and the ladder support legs (2) are fixedly connected in contact;

The railing frame (1-1) comprises a railing main body (1-1-1), a square clamping piece (1-1-2), a supporting spring I (1-1-3), a side fixing cover (1-1-4), a T-shaped control handle (1-1-5), a clamping fastening bolt (1-1-6) and a gear clamping piece (1-1-7), wherein the square clamping piece (1-1-2) is matched with the railing main body (1-1-1) through a through hole, the supporting spring I (1-1-3) is matched with the railing main body (1-1-1) through a groove, the square clamping piece (1-1-2) is fixedly connected with the supporting spring I (1-1-3) in a contact manner, and the T-shaped control handle (1-1-5) and the square clamping piece (1-1-2) are connected through a screw The lines are meshed, a first support spring (1-1-3) is wrapped outside a T-shaped control handle (1-1-5), the T-shaped control handle (1-1-5) is matched with a side fixing cover (1-1-4) through a through hole, the side fixing cover (1-1-4) is fixed on a railing main body (1-1-1) through a fastening screw, a square clamping piece (1-1-2) is matched with a hidden support leg (1-2) through a groove, a gear clamping piece (1-1-7) is fixedly in contact connection with the railing main body (1-1-1) through the fastening screw, and a clamping fastening bolt (1-1-6) movably connects the first support leg (2-1) with the railing main body (1-1-1) in contact;

The hidden supporting leg (1-2) comprises a hidden leg I (1-2-1) and a hidden leg II (1-2-2), the hidden leg I (1-2-1) is fixedly connected with the railing frame (1-1) in a contact mode through a square clamping piece (1-1-2), and the hidden leg II (1-2-2) is movably connected with the hidden leg I (1-2-1) in a contact mode;

The hidden leg I (1-2-1) comprises a special-shaped fixed cover (1-2-1-1), a special-shaped through hole (1-2-1-2), a supporting spring II (1-2-1-3), a control pull rod I (1-2-1-4), an L-shaped clamping piece (1-2-1-5) and a movable roller (1-2-1-6), wherein the special-shaped through hole (1-2-1-2) is formed in the hidden leg I (1-2-1), the special-shaped through hole (1-2-1-2) is matched with the control pull rod I (1-2-1-4), the control pull rod I (1-2-1-4) is meshed with the L-shaped clamping piece (1-2-1-5) through threads, the L-shaped clamping piece (1-2-1-5) is adapted to the special-shaped through hole (1-2-1-2), the L-shaped clamping piece (1-2-1-5) is adapted to the hidden leg II (1-2-2) through a groove, one end of the supporting spring II (1-2-1-3) is in contact with the control pull rod I (1-2-1-4), the other end of the supporting spring II (1-2-1-3) is in contact with the special-shaped fixing cover (1-2-1-1), the special-shaped fixing cover (1-2-1-1) is fixed on the hidden leg I (1-2-1) through a fastening screw, the movable roller (1-2-1-6) is in movable contact connection with the hidden leg I (1-2-1) through the fastening screw, the movable roller (1-2-1-6) is matched with the second hidden leg (1-2-2) through a groove;

a first track groove (1-2-2-1) is formed in the second hidden leg (1-2-2), and the first track groove (1-2-2-1) is matched with the movable roller (1-2-1-6);

The ladder supporting leg (2) comprises a first supporting leg (2-1), a heightening part (2-2) and a second supporting leg (2-3), wherein the first supporting leg (2-1) is movably connected with the second supporting leg (2-3) in a contact manner, the first supporting leg (2-1) is movably connected with the railing frame (1-1) in a contact manner, and the heightening part (2-2) is movably connected with the second supporting leg (2-3) in a contact manner;

the first supporting leg (2-1) comprises a leg-one main body (2-1-1), a triangular clamping piece (2-1-2), a strong spring (2-1-3), a switch push button (2-1-4) and a cover (2-1-5), wherein the triangular clamping piece (2-1-2) is matched with the leg-one main body (2-1-1) through a through hole, the strong spring (2-1-3) is fixedly connected with the triangular clamping piece (2-1-2) in a contact mode, the strong spring (2-1-3) is matched with the leg-one main body (2-1-1) through a groove, the triangular clamping piece (2-1-2) is meshed with the gear clamping piece (1-1-7), and the switch push button (2-1-4) and the triangular clamping piece (2-1-2) are matched through a groove The threads are engaged, the switch push button (2-1-4) is matched with the cover (2-1-5) through the through hole, and the cover (2-1-5) is fixed on the leg-I main body (2-1-1) through a fastening screw;

a strip-shaped through hole (2-1-5-1) is formed in the cover (2-1-5), and the strip-shaped through hole (2-1-5-1) is matched with the switch push button (2-1-4);

A second track groove (2-2-1) is formed in the heightening part (2-2), and the second track groove (2-2-1) is matched with the second support leg (2-3);

the second supporting leg (2-3) comprises a second leg main body (2-3-1), a top end fixing cover (2-3-2), a hemispherical positioning piece (2-3-3), a strong spring second (2-3-4), a strong spring third (2-3-5), a bottom fixing cover (2-3-6), a control pull rod second (2-3-7), a moving roller (2-3-8) and a U-shaped clamping piece (2-3-9), wherein the number of the hemispherical positioning pieces (2-3-3) is two, the hemispherical positioning pieces are adapted to the second leg main body (2-3-1) through holes, the hemispherical positioning piece (2-3-3) is adapted to the first leg main body (2-1-1) through the through holes, and the strong spring second (2-3-4) is communicated with the second leg main body (2-3-1) The strong spring II (2-3-4) is in fixed contact connection with the hemispherical positioning piece (2-3-3) through the corresponding groove, the top end fixing cover (2-3-2) is fixed on the leg II main body (2-3-1) through a fastening screw, the top end fixing cover (2-3-2) is in contact with the hemispherical positioning piece (2-3-3), the strong spring III (2-3-5) is in corresponding connection with the leg II main body (2-3-1) through the corresponding groove, the U-shaped clamping piece (2-3-9) is in corresponding connection with the leg II main body (2-3-1) through the corresponding through hole, the strong spring III (2-3-5) is in fixed contact connection with the U-shaped clamping piece (2-3-9), the pull rod II (2-3-7) is controlled to be meshed with the U-shaped clamping piece (2-3-9) through threads, the second control pull rod (2-3-7) is matched with the second bottom fixing cover (2-3-6) through a through hole, the second bottom fixing cover (2-3-6) is fixed on the second leg main body (2-3-1) through a fastening screw, the movable roller (2-3-8) is movably connected with the bottom of the second leg main body (2-3-1) through a fastening screw in a contact manner, and the movable roller (2-3-8) is matched with the second track groove (2-2-1);

The auxiliary supporting leg (3) comprises an auxiliary leg main body (3-1), an internal fixed cover (3-2), a rotating connecting piece (3-3), a rotating fixed connecting piece (3-4), a small switch (3-5), a clamping fixed cover (3-6), a supporting spring III (3-7) and a T-shaped positioning piece (3-8), wherein the rotating connecting piece (3-3) is movably connected with the auxiliary leg main body (3-1) through a groove in a contact manner, the internal fixed cover (3-2) is matched with the rotating connecting piece (3-3) through a through hole, the internal fixed cover (3-2) is fixed on the auxiliary leg main body (3-1) through a fastening screw, the rotating fixed connecting piece (3-4) is movably connected with the rotating fixed connecting piece (3-4), and the rotating fixed connecting piece (3-4) is movably connected with the railing main body (1-1-1) through a groove The small switch (3-5) is engaged with the T-shaped positioning piece (3-8) through threads, the T-shaped positioning piece (3-8) is adapted to the auxiliary leg main body (3-1) through a through hole, the T-shaped positioning piece (3-8) is adapted to the clamping fastening bolt (1-1-6) through a groove, the supporting spring III (3-7) is adapted to the auxiliary leg main body (3-1) through a groove, the supporting spring III (3-7) is fixedly connected with the T-shaped positioning piece (3-8) in a contact manner, the small switch (3-5) is adapted to the clamping fixing cover (3-6) through a through hole, and the clamping fixing cover (3-6) is fixed on the auxiliary leg main body (3-1) through a fastening screw;

the rotating connecting piece (3-3) comprises a rotating piece main body (3-3-1) and a rotating piece fixing cover (3-3-2), the rotating piece fixing connecting piece (3-4) is matched with the rotating piece main body (3-3-1) through a groove, the rotating piece fixing cover (3-3-2) is matched with the rotating piece fixing connecting piece (3-4) through a through hole, and the rotating piece fixing cover (3-3-2) is fixed on the rotating piece main body (3-3-1) through a fastening screw;

ladder main railing (1) is connected with ladder supporting leg (2) movable contact, and ladder supporting leg (2) are connected with auxiliary supporting leg (3), and running-board (4) are connected through fastening bolt movable contact with ladder main railing (1), and running-board (4) are connected through fastening bolt movable contact with auxiliary supporting leg (3).

2. The novel agricultural height-adjustable multifunctional ladder according to claim 1, characterized in that: the number of the foot pedals (4) is four.

3. the novel agricultural height-adjustable multifunctional ladder according to claim 1, characterized in that: the number of the ladder supporting legs (2) and the number of the hidden supporting legs (1-2) are two.

4. the novel agricultural height-adjustable multifunctional ladder according to claim 1, characterized in that: the materials of the first supporting spring (1-1-3), the second supporting spring (1-2-1-3), the first strong spring (2-1-3), the second strong spring (2-3-4), the third strong spring (2-3-5) and the third supporting spring (3-7) are all carbon steel.

5. The novel agricultural height-adjustable multifunctional ladder according to claim 1, characterized in that: the surface of the pedal (4) is provided with an anti-skid rubber mat.

6. The novel agricultural height-adjustable multifunctional ladder according to claim 1, characterized in that: the movable rollers (1-2-1-6) and the movable rollers (2-3-8) are made of hard plastics.

7. the novel agricultural height-adjustable multifunctional ladder according to claim 1, characterized in that: the main railing (1) of the ladder is parallel to the auxiliary supporting legs (3).

8. The novel agricultural height-adjustable multifunctional ladder according to claim 1, characterized in that: the left end of the second hidden leg (1-2-2) is provided with an anti-skid thread.