CN220748097U - Novel folding step stool - Google Patents

Abstract

The utility model provides a novel folding step stool, includes folding ladder body, folding ladder body includes slip frame, two ladder stands and a plurality of footboard. The ladder frame comprises a front pipe and a rear pipe. The sliding frame comprises a connecting rod and two sliding rods. A fixing rod is fixedly connected between the two rear pipes, and two fixing rings are sleeved on the fixing rod. The outer side wall of the fixing ring is fixed with a fixing plate, and the fixing plate is provided with a sliding hole. A plurality of linkage rods are fixed on the sliding frame. One end of the pedal is connected between the two front pipes. The other end of the pedal is fixed with two rotating rings, and the two rotating rings are both sleeved outside the linkage rod in a rotating way. The top end of the pedal positioned at the uppermost end of the plurality of pedals is leveled with the top end of the ladder frame. The top end of the pedal positioned at the uppermost end of the pedal is leveled with the top end of the ladder frame, and the left and right sides of the pedal are free from barriers, so that uncomfortable feeling is avoided when a user with larger hip is seated on the pedal, and the situation that the user with larger hip cannot sit on the pedal is avoided.

Description

Novel folding step stool

Technical Field

The utility model relates to the technical field of ladders, in particular to a novel folding ladder stool.

Background

The applicant has applied for a chinese patent with grant bulletin number CN217447163U a bench with can overturn bench pad before, including folding ladder body, handrail frame and rotatable folding footboard structure, folding ladder body includes two front pipes and two back pipes, the front pipe is connected through the mutual rotation of connecting piece pair by pair with the top of back pipe, the footboard structure comprises a plurality of footboard bodies and a plurality of gangbar, the top that is located the pedal body of uppermost among a plurality of footboard bodies covers has the bench pad, and pass through hinge swivelling joint between its rear side and the rear side of bench pad, handrail frame includes arc pole and two connecting rods, the arc pole is to folding ladder body's rear side protrusion, two connecting rods are fixed in the both ends of arc pole respectively and with two front pipes fixed connection respectively. The stool pad of the utility model can not be stepped on by a user, and the stool pad is prevented from being wiped after being used as a ladder each time.

Since the shoulder width of most adults is in the range of 30cm-50cm, the applicant controls the interval between the left and right two frames (the front tube and the top end of the rear tube are rotatably connected by the connecting piece to form one frame) to be 30cm-50cm for the convenience of most adults in practical production of the utility model. The excessive spacing between the two ladder frames can lead to excessive opening of hands when a user climbs the utility model, so that the user cannot conveniently climb the utility model; too short a distance between the two ladder frames can result in too short a length of the pedal body, thereby resulting in a user unable to tread on the pedal body with his feet in a steady manner. Moreover, the tread width of most ladder products of the prior art is substantially comparable to this range.

However, in the actual use of the present utility model, the applicant found that, since the uppermost pedal body is lower than the steps, a user sits on the pedal body while being caught between the steps, and if the hip circumference of the user is large, the user may feel serious discomfort, or even may not sit on the pedal body.

Therefore, the utility model provides a new technical scheme, and aims to solve the problem that a user with a larger hip size can feel uncomfortable when sitting on the top pedal, and even cannot sit on the top pedal.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide a novel folding step stool, and the height of the pedal at the uppermost end is set to be consistent with the height of a ladder frame, so that the left and right sides of the pedal are free from barriers, thereby achieving the technical effects of avoiding uncomfortable feeling when a user with larger hip circumference sits on the pedal, and avoiding the situation that the user with larger hip circumference cannot sit on the pedal.

The utility model provides a novel folding ladder stool, includes folding ladder body, folding ladder body includes two ladder frames and a plurality of rotations that bilateral symmetry set up connect the footboard between two ladder frames, the ladder frame includes front pipe and back pipe, the top of front pipe and back pipe is rotated through the connecting piece and is connected, folding ladder body still includes the sliding frame, the sliding frame includes two slide bars and fixed connection in the connecting rod between two slide bars, two fixedly connected with dead lever between the back pipe, the outside fixed cover of dead lever is equipped with two solid fixed rings, be fixed with the stationary blade that corresponds with the slide bar on the lateral wall of solid fixed ring, set up the slide hole that can supply the slide bar to pass and remove on the stationary blade, one side that is close to the front pipe on the sliding frame is fixed with a plurality of gangbars, a plurality of pedals that correspond respectively, the one end of footboard is rotated through the round pin axle and is connected between two front pipes, the other end of footboard is fixed with two swivel beckets, two swivel beckets all rotate the outside of locating the cover, the top of a plurality of pedal top that lie in the pedal with the level with the frame of uppermost.

Through adopting above-mentioned technical scheme, when needing to receive folding ladder body, rotatory front tube and back pipe make front tube and back pipe be close to each other, and the folding receipts of ladder frame are closed. The rear tube drives the fixing rod to move towards the front tube. Meanwhile, the sliding rod is driven to move upwards along the sliding hole, so that the sliding frame moves upwards. The sliding frame drives the linkage rod to move upwards. The rotating ring rotates on the linkage rod, and simultaneously the rotating ring is carried by the linkage rod to move upwards. The rotating ring drives the pedal to rotate upwards by taking the joint of the pedal and the front pipe as the center of a circle. After the front pipe and the rear pipe are attached, the pedal is also completely folded. Through the arrangement of the structure, a linkage relationship is formed between the rotation of the front pipe and the rear pipe, the movement of the sliding frame and the rotation of the pedal. Similarly, when the folding ladder body needs to be unfolded, the front pipe and the rear pipe are rotated to enable the front pipe and the rear pipe to be mutually far away, the ladder frame is rotated and unfolded, the pedals are rotated downwards to be paved, and the sliding frame moves downwards. When the ladder frame is completely rotated and unfolded, a worker stands on the folding ladder body, and the angle between the front pipe and the rear pipe is fixed, so that the pedals are limited to be not rotated any more, and the sliding frame is limited to be not moved any more. When staff is located on the folding ladder body, the folding ladder body can be firmly supported. And at this time, the top end of the pedal positioned at the uppermost end of the pedals is leveled with the top end of the ladder frame, and the left and right sides of the pedals are free from barriers, so that uncomfortable feeling is avoided when a user with larger hip size sits on the pedals, and the situation that the user with larger hip size cannot sit on the pedals is avoided.

The utility model is further provided with: a reinforcing rod is also fixed between the two rear pipes.

Through adopting above-mentioned technical scheme, the stability of folding ladder body has been promoted in the setting of stiffening rod.

The utility model is further provided with: one side, close to the rear pipe, of the top ends of the pedals at the uppermost ends of the pedals is hinged with a cushion through a hinge.

By adopting the technical scheme, when a worker sits on the pedal at the uppermost end, the cushion improves the comfort. When a worker needs to step on the pedal, the cushion is unfolded in a rotating mode.

The utility model is further provided with: the U-shaped limiting plate is fixedly connected with the front pipe through rivets and is positioned above the joint of the handrail and the front pipe.

Through adopting above-mentioned technical scheme, in can blocking into U type limiting plate after the handrail upwards rotates, U type limiting plate has played limiting effect to the handrail can't continue to rotate this moment to the quick location handrail can climb folding ladder body more conveniently through the handrail staff.

The utility model is further provided with: the utility model discloses a U-shaped limiting plate, including U-shaped limiting plate, connecting rod, pull rod, connecting rod, sliding connection has the sliding plate in the cavity, be fixed with the installation piece on the lateral wall of U-shaped limiting plate, the cavity has been seted up in the installation piece, first through-hole has been seted up on the cavity near one side cavity wall of U-shaped limiting plate, the second through-hole that corresponds with first through-hole has been seted up on the handrail, sliding connection has the sliding plate in the cavity, one side of sliding plate is fixed with the connecting rod, the other end of connecting rod passes first through-hole and second through-hole in proper order and penetrates in the connecting hole, the opposite side of sliding plate is fixed with the pull rod, the other end of pull rod is worn out the cavity and is fixed with the pull ring with sliding connection's letting out, be fixed with the cover between cavity wall and the sliding plate of cavity and the outside spring of pull rod.

Through adopting above-mentioned technical scheme, before rotatory handrail, first through pull ring pulling pull rod, the pull rod drives the sliding plate and slides in the cavity, and the sliding plate drives the connecting rod and to remove in the cavity, simultaneously, the spring is compressed and forms the resilience force. When the connecting rod is completely retracted into the cavity, the handrail is rotated upwards, after the handrail is clamped by the U-shaped limiting plate, the connecting hole corresponds to the position of the second through hole, at the moment, the pull ring is loosened, and under the action of the rebound force of the spring, one end of the connecting rod penetrates through the first through hole and the second through hole and penetrates into the connecting hole, so that the handrail is fixed in the U-shaped limiting plate, and the stability of the handrail is improved.

Compared with the prior art, the utility model has the beneficial effects that:

when the folding ladder body needs to be folded, the front pipe and the rear pipe are rotated to enable the front pipe and the rear pipe to be close to each other, and the ladder frame is folded and folded. The rear tube drives the fixing rod to move towards the front tube. Meanwhile, the sliding rod is driven to move upwards along the sliding hole, so that the sliding frame moves upwards. The sliding frame drives the linkage rod to move upwards. The rotating ring rotates on the linkage rod, and simultaneously the rotating ring is carried by the linkage rod to move upwards. The rotating ring drives the pedal to rotate upwards by taking the joint of the pedal and the front pipe as the center of a circle. After the front pipe and the rear pipe are attached, the pedal is also completely folded. Through the arrangement of the structure, a linkage relationship is formed between the rotation of the front pipe and the rear pipe, the movement of the sliding frame and the rotation of the pedal. Similarly, when the folding ladder body needs to be unfolded, the front pipe and the rear pipe are rotated to enable the front pipe and the rear pipe to be mutually far away, the ladder frame is rotated and unfolded, the pedals are rotated downwards to be paved, and the sliding frame moves downwards. When the ladder frame is completely rotated and unfolded, a worker stands on the folding ladder body, and the angle between the front pipe and the rear pipe is fixed, so that the pedals are limited to be not rotated any more, and the sliding frame is limited to be not moved any more. When staff is located on the folding ladder body, the folding ladder body can be firmly supported. And at this time, the top end of the pedal positioned at the uppermost end of the pedals is leveled with the top end of the ladder frame, and the left and right sides of the pedals are free from barriers, so that uncomfortable feeling is avoided when a user with larger hip size sits on the pedals, and the situation that the user with larger hip size cannot sit on the pedals is avoided.

Drawings

FIG. 1 is a schematic view of a novel folding step stool of the present utility model;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is an enlarged view at B in FIG. 1;

FIG. 4 is a cross-sectional view of a U-shaped stop plate, mounting blocks and grab bars of the novel folding step stool of the present utility model.

Reference numerals: 1. a ladder frame; 2. a pedal; 3. a front tube; 4. a rear tube; 5. a connecting piece; 6. a sliding frame; 7. a slide bar; 8. a connecting rod; 9. a fixed rod; 10. a fixing ring; 11. a fixing piece; 12. a slide hole; 13. a linkage rod; 14. a rotating ring; 15. a reinforcing rod; 16. a cushion; 17. a U-shaped limiting plate; 18. an armrest; 19. a mounting block; 20. a cavity; 21. a first through hole; 22. a second through hole; 23. a connection hole; 24. a sliding plate; 25. a connecting rod; 26. a pull rod; 27. a pull ring; 28. and (3) a spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

A novel folding ladder stool, as shown in figures 1-4, comprises a folding ladder body. The folding ladder body comprises two ladder frames 1 which are arranged in bilateral symmetry and a plurality of pedals 2 which are connected between the two ladder frames 1 in a rotating mode. The ladder frame 1 comprises a front tube 3 and a rear tube 4. The top ends of the front pipe 3 and the rear pipe 4 are rotatably connected through a connecting piece 5. The folding ladder body further comprises a sliding frame 6. The slide frame 6 includes two slide bars 7 and a connecting bar 258 fixedly connected between the two slide bars 7. A fixed rod 9 is fixedly connected between the two rear pipes 4. The outer fixing sleeve of the fixing rod 9 is provided with two fixing rings 10. A fixing piece 11 corresponding to the slide rod 7 is fixed to the outer wall of the fixing ring 10. The fixing piece 11 is provided with a slide hole 12 for the slide rod to pass through and move. A plurality of linkage rods 13 are fixed on one side of the sliding frame 6 close to the front pipe 3. The plurality of linkage rods 13 respectively correspond to the plurality of pedals 2. One end of the pedal 2 is rotatably connected between the two front pipes 3 through a pin shaft. The other end of the pedal 2 is fixed with two rotating rings 14. Both the rotating rings 14 are rotatably sleeved outside the linkage rod 13. The top ends of the uppermost footsteps 2 of the plurality of footsteps 2 are leveled with the top ends of the ladder frames 1.

Additionally, a reinforcing rod 15 is fixed between the two rear pipes 4. The stability of the folding ladder body is promoted by the arrangement of the reinforcing rods 15.

One side of the top end of the pedal 2 positioned at the uppermost end of the pedals 2, which is close to the rear pipe 4, is hinged with a cushion 16 through a hinge. The seat cushion 16 promotes comfort when a worker sits on the uppermost step 2. When the worker steps on the step 2, the seat cushion 16 is rotated and unfolded.

The outer side wall of the front pipe 3 is provided with a U-shaped limiting plate 17 and an armrest 18, the armrest 18 is rotationally connected with the front pipe 3 through a pin shaft, the U-shaped limiting plate 17 is fixedly connected with the front pipe 3 through a rivet and is positioned above the joint of the armrest 18 and the front pipe 3. The handrail 18 can block into the U type limiting plate 17 after upwards rotating, and the U type limiting plate 17 has played limiting effect, and the handrail 18 can't continue to rotate this moment to the quick location handrail 18, through handrail 18 staff can climb the folding ladder body more conveniently.

The mounting block 19 is fixed on the outer side wall of the U-shaped limiting plate 17, the cavity 20 is formed in the mounting block 19, the first through hole 21 is formed in the cavity wall of one side, close to the U-shaped limiting plate 17, of the cavity 20, the second through hole 22 corresponding to the first through hole 21 is formed in the U-shaped limiting plate 17, the connecting hole 23 corresponding to the second through hole 22 is formed in the handrail 18, the sliding plate 24 is connected in the cavity 20 in a sliding mode, a connecting rod 258 is fixed on one side of the sliding plate 24, the other end of the connecting rod 258 sequentially penetrates through the first through hole 21 and the second through hole 22 and penetrates into the connecting hole 23, a pull rod 26 is fixed on the other side of the sliding plate 24, the other end of the pull rod 26 penetrates out of the cavity 20 in a sliding mode, a pull ring 27 is fixed on the other end of the pull rod 26, and a spring 28 sleeved outside the pull rod 26 is fixed between the cavity wall of the cavity 20 and the sliding plate 24.

Before the armrest 18 is rotated, the pull rod 26 is pulled by the pull ring 27, the pull rod 26 drives the sliding plate 24 to slide in the cavity 20, the sliding plate 24 drives the connecting rod 258 to move into the cavity 20, and meanwhile, the spring 28 is compressed to form a resilience force. When the connecting rod 258 is completely retracted into the cavity 20, the handrail 18 is rotated upwards, and after the handrail 18 is clamped by the U-shaped limiting plate 17, the connecting hole 23 corresponds to the position of the second through hole 22, at this time, the pull ring 27 is released, and under the action of the elastic force of the spring 28, one end of the connecting rod 258 passes through the first through hole 21 and the second through hole 22 and penetrates into the connecting hole 23, so that the handrail 18 is fixed in the U-shaped limiting plate 17, and the stability of the handrail 18 is improved.

Working principle: when the folding ladder body needs to be folded, the front pipe 3 and the rear pipe 4 are rotated to enable the front pipe 3 and the rear pipe 4 to be close to each other, and the ladder frame 1 is folded and folded. The rear tube 4 will drive the fixing rod 9 to move towards the front tube 3. Simultaneously, the sliding rod is driven to move upwards along the sliding hole 12, so that the sliding frame 6 moves upwards. The sliding frame 6 drives the linkage rod 13 to move upwards. The rotating ring 14 rotates on the link lever 13 while the rotating ring 14 is moved upward by the link lever 13. The rotating ring 14 drives the pedal 2 to rotate upwards by taking the joint with the front pipe 3 as the center of a circle. After the front and rear pipes 4 are attached, the pedal 2 is also fully folded. By the arrangement of the above structure, a linkage is formed between the rotation of the front tube 3 and the rear tube 4, the movement of the slide frame 6, and the rotation of the pedal 2. Similarly, when the folding ladder body needs to be unfolded, the front pipe 3 and the rear pipe 4 are rotated, so that the front pipe 3 and the rear pipe 4 are far away from each other, the ladder frame 1 is unfolded in a rotating manner, the pedals 2 are paved in a downward rotating manner, and the sliding frame 6 moves downward. When the ladder frame 1 is completely rotated and unfolded, a worker stands on the folding ladder body, and the front pipe 3 and the rear pipe 4 are not rotated any more due to the fixed angles of the front pipe 3 and the rear pipe 4, so that the pedals 2 are also restrained from rotating any more, and the sliding frame 6 is restrained from moving any more. When staff is located on the folding ladder body, the folding ladder body can be firmly supported. And at this time, the top end of the uppermost tread 2 of the tread 2 is leveled with the top end of the ladder frame 1, and the left and right sides of the tread 2 are free from obstacles, thereby avoiding uncomfortable feeling when a user with a large hip is seated on the tread 2, and avoiding the inability of the user with a large hip to sit on the tread 2.

In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (5)

1. The utility model provides a novel folding step stool, includes folding ladder body, folding ladder body includes ladder frame (1) and a plurality of rotation that two bilateral symmetry set up connect footboard (2) between two ladder frames (1), ladder frame (1) are including front pipe (3) and back pipe (4), the top of front pipe (3) and back pipe (4) is rotated through connecting piece (5) and is connected, its characterized in that: the folding ladder body further comprises a sliding frame (6), the sliding frame (6) comprises two sliding rods (7) and a connecting rod (25) (8) fixedly connected between the two sliding rods (7), two fixing rods (9) are fixedly connected between the rear pipes (4), two fixing rings (10) are fixedly sleeved outside the fixing rods (9), fixing plates (11) corresponding to the sliding rods (7) are fixedly arranged on the outer side walls of the fixing rings (10), sliding holes (12) through which sliding rods can penetrate and move are formed in the fixing plates (11), a plurality of linkage rods (13) are fixedly arranged on one side, close to the front pipes (3), of the sliding frame (6), a plurality of pedals (2) are respectively corresponding to the linkage rods (13), one ends of the pedals (2) are connected between the two front pipes (3) in a rotating mode through pin shafts, two rotating rings (14) are fixedly arranged at the other ends of the pedals (2), the two rotating rings (14) are all rotatably sleeved outside the fixing plates (13), and the top ends of the pedals (2) are located at the top ends of the pedals (2) which are located at the top ends of the pedals (1) which are parallel to the top ends of the pedals (2).

2. The novel folding step stool as claimed in claim 1, wherein: a reinforcing rod (15) is also fixed between the two rear pipes (4).

3. The novel folding step stool as claimed in claim 1, wherein: one side, close to the rear pipe (4), of the top end of the pedal (2) positioned at the uppermost end of the pedals (2) is hinged with a cushion (16) through a hinge.

4. The novel folding step stool as claimed in claim 1, wherein: the novel front pipe is characterized in that a U-shaped limiting plate (17) and an armrest (18) are arranged on the outer side wall of the front pipe (3), the armrest (18) is rotationally connected with the front pipe (3) through a pin shaft, the U-shaped limiting plate (17) is fixedly connected with the front pipe (3) through a rivet and is located above the joint of the armrest (18) and the front pipe (3).

5. The novel folding step stool as claimed in claim 4, wherein: the utility model discloses a sliding device for a car, including U type limiting plate (17), install piece (19) on the lateral wall of U type limiting plate (17), set up cavity (20) in installing piece (19), set up first through-hole (21) on the one side cavity wall that is close to U type limiting plate (17) on cavity (20), set up second through-hole (22) that correspond with first through-hole (21) on U type limiting plate (17), set up connecting hole (23) that correspond with second through-hole (22) on handrail (18), sliding connection has sliding plate (24) in cavity (20), one side of sliding plate (24) is fixed with connecting rod (25) (8), the other end of connecting rod (25) (8) passes first through-hole (21) and second through-hole (22) in proper order and penetrates connecting hole (23), the opposite side of sliding plate (24) is fixed with pull rod (26), the other end of pull rod (26) is with sliding connection's letting out cavity (20) and be fixed with pull rod (27), between cavity (20) and sliding plate's wall (24) and sliding plate (26) are fixed with spring (28) outside.