Lifting step ladder

Abstract

The invention relates to a lifting step ladder which comprises a bottom frame mechanism, a slope mechanism, a lifting step mechanism, a middle platform mechanism, a handrail mechanism, a suspension mechanism and a controller, the slope mechanism is arranged on one side of the bottom frame mechanism, the lifting step mechanism is arranged on the other side of the bottom frame mechanism, and the middle platform mechanism is arranged between the slope mechanism and the lifting step mechanism. A suspension mechanism is arranged above the underframe mechanism, and armrest mechanisms are arranged on the front side and the rear side of the underframe mechanism. A controller is arranged on the side face of the underframe mechanism. The lifting adjusting function is achieved, and the effects of being large in adjusting range and wide in application range are achieved.

Description

Technical Field

[0001] The invention relates to a sports rehabilitation training device, in particular to a lifting step ladder. Background Art

[0002] At present, in the medical process, patients whose lower limbs are in the treatment period need to undergo lower limb rehabilitation training. Rehabilitation training with the help of rehabilitation training equipment can help improve the treatment effect and shorten the recovery time. The steps and ramps in fixed occasions are all fixed heights and fixed angles. The devices with fixed heights and angles are not suitable for patients of different degrees of illness. They cannot be adjusted adaptively in height and angle according to the patient's condition and illness. Different height and angle adjustments can adapt to more patients with different recovery stages and different illnesses for recovery training. Therefore, the integrated lifting ramp and step ladder meet the above needs. The device has a wide adjustment range and is suitable for more patients with different recovery stages and different illnesses. It also integrates electronic control and intelligent systems, making it more convenient to use. Summary of the invention

[0003] In order to solve the above defects and shortcomings in the prior art, the present invention provides a lifting step ladder.

[0004] In order to solve the above technical problems, the present invention provides a lifting step ladder, including a base frame mechanism, a ramp mechanism, a lifting step mechanism, an intermediate platform mechanism, a handrail mechanism, a suspension mechanism and a controller. A ramp mechanism is provided on one side of the base frame mechanism, a lifting step mechanism is provided on the other side of the base frame mechanism, an intermediate platform mechanism is provided between the ramp mechanism and the lifting step mechanism, a suspension mechanism is provided above the base frame mechanism, and handrail mechanisms are provided on the front and rear sides of the base frame mechanism; a controller is provided on the side of the base frame mechanism; the lifting step mechanism includes steps, a sliding support mechanism and a lifting drive mechanism, and sliding support mechanisms are provided on both sides of the steps and between the base frame mechanism. The invention discloses a mechanism, wherein a lifting drive mechanism is arranged on the middle platform mechanism; the sliding support mechanism comprises a connecting rod, a sliding mechanism, a slider group, a slide rail and a fixed plate, the connecting rod is arranged on the step through the sliding mechanism, the side of the step is provided with an opening, a U-shaped slider group mounting plate is installed in the opening, the slider group mounting plate is installed with the slider group, and the slide rail is installed on the fixed plate; wherein the slider group comprises a U-shaped plate, a groove wheel group and a groove wheel mounting plate, the U-shaped plate is installed on the slider group mounting plate, the groove wheel mounting plate is installed on the U-shaped plate, the two groups of groove wheel groups are respectively installed on both sides of the groove wheel mounting plate, the groove wheel group is slidably matched with the convex strips on both sides of the slide rail, and the groove wheel in the groove wheel group does not rotate.

[0005] Preferably, the sliding mechanism includes a long strip groove, a first arc groove and a second arc groove of the connecting rod, wherein the steps include a first step, a second step and a third step, a first pin is provided on the side of the first step, and the first pin can slide in the long strip groove, a second pin is provided on the side of the second step, and the second pin can slide in the first arc groove, and a third pin is provided on the side of the third step, and the third pin can slide in the second arc groove.

[0006] Preferably, the handrail mechanism includes side rails, a middle rail, side handrails, a middle handrail and a handrail width adjustment mechanism; side rails are arranged on the sides of the base frame mechanism, a middle rail is arranged on the top surface of the middle platform mechanism, a handrail width adjustment mechanism is arranged between the side rails and the side handrails; a handrail width adjustment mechanism is arranged between the middle rail and the middle handrail; and both ends of the middle handrail are respectively hinged to the side handrails.

[0007] Preferably, the side railing and the middle railing respectively include a fixed rod, a handrail width adjustment mechanism is provided on the upper part of the fixed rod, the handrail width adjustment mechanism includes a cross arm, a damper, a reset knob plunger and a movable rod, the sides of the fixed rod and the movable rod are provided with a seat plate with an elongated hole, the side of the fixed rod is also provided with a plurality of first through holes, and the first through holes correspond to the elongated holes; a cross arm or a plurality of cross arms are provided between the fixed rod and the movable rod, wherein the cross arm includes a first connecting rod and a second connecting rod, and the first connecting rod and the second connecting rod are connected by a damper; one end of the first connecting rod is connected to the first through hole by a reset knob plunger or one end of the second connecting rod, and the other end of the first connecting rod slides in the elongated hole by a pin shaft or is connected to the other end of the second connecting rod; one end of the second connecting rod is connected to the U-shaped seat of the fixed rod or one end of the first connecting rod, and the other end of the second connecting rod is connected to the U-shaped seat of the movable rod or one end of a connecting rod.

[0008] Preferably, the damper includes a first damping plate and a second damping plate, the first damping plate and the second damping plate are cross-arranged, the small circular holes at both ends of the first damping plate are connected to the two small circular holes of the first connecting rod by screws, and the small circular holes at both ends of the second damping plate are connected to the two small circular holes of the second connecting rod by screws; wherein the large circular hole is arranged between the two small circular holes.

[0009] Preferably, the intermediate platform mechanism includes an electric push rod, a parallel rod base and an intermediate platform plate. The telescopic end of the electric push rod is arranged on the base frame mechanism, the fixed end of the electric push rod is connected to the parallel rod base, one side of the parallel rod base is hinged to the connecting rod, the other end of the parallel rod base is hinged to the ramp mechanism, and the top surface of the parallel rod base is provided with an intermediate platform plate.

[0010] Preferably, the suspension mechanism comprises a support adjustment mechanism, a suspension rail and an arch frame, the top of the support adjustment mechanism is provided with an arch frame, the middle position of the arch frame is provided with a suspension rail, and the hook can slide along the suspension rail.

[0011] Preferably, the pillar adjustment mechanism includes a base column and an insertion column, and the sides of the base column and the insertion column are respectively provided with a plurality of height adjustment holes, the insertion column is inserted into the upper opening of the base column and fixed by inserting a pin into the height adjustment hole.

[0012] Preferably, the ramp mechanism comprises a ramp frame and a ramp plate, one end of the ramp frame is hinged to one end of the parallel rod base, the other end of the ramp frame is hinged to the base frame mechanism, and the top surface of the ramp frame is provided with a ramp plate.

[0013] Preferably, the controller includes a bracket, a universal articulated frame and a display screen. The bracket is fixed to the side of the base frame mechanism. The top end of the bracket is hinged to one end of the universal articulated frame through a connecting frame. The other end of the universal articulated frame is provided with a display screen.

[0014] Beneficial technical effects achieved by the present invention: The present invention integrates a lifting step mechanism and a slope mechanism and has a lifting and lowering adjustment function, thereby having the effects of a large adjustment range and a wide application range.

[0015] The sliding support mechanism of the present invention can drive the three steps to move linearly up and down, thus completing the function of switching between flat ground and slope.

[0016] The armrest width adjustment mechanism of the present invention can adjust the width position of the armrest to meet the needs of different width positions, and has the technical effect of flexible adjustment compared to fixed armrests.

[0017] The suspension mechanism of the present invention can adjust the height to adapt to different height requirements, and can meet the needs of people's training movement by moving the hook on the suspension rail to prevent people from falling.

[0018] The controller of the present invention adopts a universal articulated frame to adjust the angle and height to adapt to the operation requirements of different angles and heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic front view of the overall structure of the lifting step ladder of the present invention; Figure 2 is a schematic diagram of a lifting step mechanism of the present invention; Figure 3 It is an exploded schematic diagram of the lifting step mechanism of the present invention; Figure 4 It is a schematic diagram of the connection between the lifting step mechanism and the intermediate platform mechanism of the present invention; Figure 5 is a schematic diagram of the armrest width adjustment mechanism of the present invention; Figure 6 is a schematic diagram of a damper of the armrest width adjustment mechanism of the present invention; Figure 7 It is a schematic diagram of the connection between the intermediate platform mechanism and the ramp mechanism of the present invention; Figure 8 Schematic diagram of a controller of the present invention. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with specific examples. The following examples are only used to more clearly illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention.

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] like Figure 1-7 As shown, this embodiment is a lifting step ladder, including a base frame mechanism 1, a ramp mechanism 2, a lifting step mechanism 3, an intermediate platform mechanism 4, a handrail mechanism 5, a suspension mechanism 6 and a controller 7. The ramp mechanism 2 is provided on one side of the base frame mechanism 1, and the lifting step mechanism 3 is provided on the other side of the base frame mechanism 1. The intermediate platform mechanism 4 is provided between the ramp mechanism 2 and the lifting step mechanism 3. The suspension mechanism 6 is provided above the base frame mechanism 1, and the handrail mechanism 5 is provided on the front and rear sides of the base frame mechanism 1; the controller 7 is provided on the side of the base frame mechanism 1; The lifting step mechanism 3 includes a step 30, a sliding support mechanism 31 and a lifting drive mechanism 32. The sliding support mechanisms 31 are respectively arranged between the two sides of the step 30 and the bottom frame mechanism 1, and the lifting drive mechanism 32 is arranged on the middle platform mechanism 4. The lifting drive mechanism 32 drives the middle platform mechanism 4 to move up and down, and the lifting drive mechanism drives the connecting rod to move, thereby driving the height change between the steps. The lifting drive mechanism drives the slope mechanism to move, thereby meeting the needs of different slopes.

[0023] The sliding support mechanism 31 includes a connecting rod 311, a sliding mechanism 312, a slider group 313, a slide rail 314 and a fixed plate 315. The connecting rod 311 is arranged on the step through the sliding mechanism 312. An opening is arranged on the side of the step. A U-shaped slider group mounting plate 3130 is installed in the opening. The slider group mounting plate 3130 is installed with the slider group 313. The slide rail 314 is installed on the fixed plate 315. The slider group 313 includes a U-shaped plate 3131, a groove wheel group 3132 and a groove wheel mounting plate 3133. The U-shaped plate 3131 is installed on the slider group mounting plate 3130. The groove wheel mounting plate 3133 is installed on the U-shaped plate 3131. Two groups of groove wheel groups 3132 are respectively installed on both sides of the groove wheel mounting plate 3133. The groove wheel group slidably cooperates with the convex strips on both sides of the slide rail, and the groove wheels in the groove wheel group do not rotate.

[0024] The sliding mechanism 312 includes a long strip groove 3121, a first arc groove 3122 and a second arc groove 3123 of the connecting rod, wherein the step 30 includes a first step 301, a second step 302 and a third step 303, a first pin is provided on the side of the first step 301, and the first pin can slide in the long strip groove, a second pin is provided on the side of the second step, and the second pin can slide in the first arc groove, and a third pin is provided on the side of the third step, and the third pin can slide in the second arc groove.

[0025] The handrail mechanism 5 includes side rails 51, a middle rail 52, a side handrail 53, a middle handrail 54 and a handrail width adjustment mechanism 55. The side of the base frame mechanism 1 is provided with a side rail 51, the top surface of the middle platform mechanism 4 is provided with a middle rail 52, and the handrail width adjustment mechanism 55 is provided between the side rail 51 and the side handrail 53; the handrail width adjustment mechanism 55 is provided between the middle rail 52 and the middle handrail 54; and the two ends of the middle handrail 54 are respectively hinged to the side handrails 53.

[0026] The side rail 51 and the middle rail 52 respectively include a fixed rod 521, and an armrest width adjustment mechanism 55 is provided on the upper part of the fixed rod 521. The armrest width adjustment mechanism 55 includes a cross arm 551, a damper 552, a reset knob plunger 553 and a movable rod 554. The sides of the fixed rod 521 and the movable rod 554 are provided with a seat plate with a long strip hole. The side of the fixed rod is also provided with a plurality of first through holes, and the first through holes correspond to the long strip holes; a cross arm or a plurality of cross arms are provided between the fixed rod and the movable rod, wherein the cross arm or the plurality of cross arms are provided. The fork arm 551 includes a first connecting rod 5511 and a second connecting rod 5512, and the first connecting rod 5511 and the second connecting rod 5512 are connected through a damper 552; one end of the first connecting rod is connected to the first through hole through a reset knob plunger or is connected to one end of the second connecting rod, and the other end of the first connecting rod slides in the elongated hole through a pin shaft or is connected to the other end of the second connecting rod; one end of the second connecting rod is connected to the U-shaped seat of the fixed rod or is connected to one end of the first connecting rod, and the other end of the second connecting rod is connected to the U-shaped seat of the movable rod or is connected to one end of the first connecting rod.

[0027] The damper 552 includes a first damping plate 5521 and a second damping plate 5522, the first damping plate and the second damping plate are arranged crosswise, the first connecting rod 5511, the second connecting rod 5512, and the large circular hole in the middle of the first damping plate and the second damping plate are connected by a pin shaft, the small circular holes at both ends of the first damping plate are connected to the two small circular holes of the first connecting rod by screws, and the small circular holes at both ends of the second damping plate are connected to the two small circular holes of the second connecting rod by screws; wherein the large circular hole is arranged in the middle of the two small circular holes.

[0028] The lifting drive mechanism 32 includes an electric push rod 321, and the intermediate platform mechanism 4 includes a parallel rod base 41 and an intermediate platform plate 42. The telescopic end of the electric push rod 321 is arranged on the base mechanism, and the fixed end of the electric push rod is connected to the parallel rod base 41. One side of the parallel rod base 41 is hinged to the connecting rod 311, and the other end of the parallel rod base 41 is hinged to the ramp mechanism 2. The top surface of the parallel rod base 41 is provided with an intermediate platform plate 42.

[0029] The suspension mechanism 6 includes a support adjustment mechanism 61, a suspension rail 62 and an arch frame 63. The support adjustment mechanism 61 is arranged on the side of the base mechanism. The top of the support adjustment mechanism 61 is provided with an arch frame 63. The middle position of the arch frame 63 is provided with a suspension rail 62, and the hook can slide along the suspension rail; the hook can be connected to the safety belt on the person to prevent the person from falling during training.

[0030] The support column adjustment mechanism 61 includes a bottom column 611 and an insertion column 612. The sides of the bottom column 611 and the insertion column 612 are respectively provided with a plurality of height adjustment holes. The insertion column is inserted into the upper opening of the bottom column and fixed by inserting a pin into the height adjustment hole. The support column adjustment mechanism can adapt to the height requirements of different heights by adjusting the height.

[0031] The ramp mechanism 2 comprises a ramp frame 21 and a ramp plate 22. One end of the ramp frame 21 is hinged to one end of the parallel rod base, and the other end of the ramp frame 21 is hinged to the base frame mechanism. The top surface of the ramp frame is provided with a ramp plate.

[0032] The controller 7 includes a bracket 71, a universal articulated frame 72 and a display screen 73. The bracket 71 is fixed to the side of the base frame mechanism. The top end of the bracket 72 is hinged to one end of the universal articulated frame 72 through a connecting frame. The other end of the universal articulated frame 72 is provided with a display screen 73.

[0033] When in use, the lifting and lowering movement of the electric push rod is controlled according to the actual slope requirements. When the electric push rod is lifted or lowered, it will drive the slope mechanism and the lifting step mechanism to move.

[0034] The present invention has been disclosed above with preferred embodiments, but they are not intended to limit the present invention. Any technical solutions obtained by adopting equivalent replacement or equivalent transformation solutions fall within the protection scope of the present invention.

Claims

1. A lifting step ladder, characterized in that: It includes a base frame mechanism, a ramp mechanism, a lifting step mechanism, an intermediate platform mechanism, a handrail mechanism, a suspension mechanism and a controller. A ramp mechanism is provided on one side of the base frame mechanism, a lifting step mechanism is provided on the other side of the base frame mechanism, an intermediate platform mechanism is provided between the ramp mechanism and the lifting step mechanism, a suspension mechanism is provided above the base frame mechanism, and handrail mechanisms are provided on the front and rear sides of the base frame mechanism; a controller is provided on the side of the base frame mechanism; The lifting step mechanism comprises a step, a sliding support mechanism and a lifting drive mechanism. The sliding support mechanisms are respectively arranged between the two sides of the step and the base frame mechanism, and the lifting drive mechanism is arranged on the middle platform mechanism. The sliding support mechanism includes a connecting rod, a sliding mechanism, a slider group, a slide rail and a fixed plate. The connecting rod is arranged on the step through the sliding mechanism. An opening is arranged on the side of the step. A U-shaped slider group mounting plate is installed in the opening. The slider group mounting plate is installed with the slider group, and the slide rail is installed on the fixed plate. The slider group includes a U-shaped plate, a groove wheel group and a groove wheel mounting plate. The U-shaped plate is installed on the slider group mounting plate, and the groove wheel mounting plate is installed on the U-shaped plate. Two groups of groove wheel groups are respectively installed on both sides of the groove wheel mounting plate, and the groove wheel group is slidably matched with the convex strips on both sides of the slide rail.

2. A step ladder according to claim 1, characterized in that: The sliding mechanism includes a long strip groove, a first arc groove and a second arc groove of the connecting rod, wherein the steps include a first step, a second step and a third step, a first pin is provided on the side of the first step, and the first pin can slide in the long strip groove, a second pin is provided on the side of the second step, and the second pin can slide in the first arc groove, and a third pin is provided on the side of the third step, and the third pin can slide in the second arc groove.

3. The step ladder according to claim 1, characterized in that: The handrail mechanism includes side rails, a middle rail, side handrails, a middle handrail and a handrail width adjustment mechanism. Side rails are arranged on the sides of the base frame mechanism, a middle rail is arranged on the top surface of the middle platform mechanism, a handrail width adjustment mechanism is arranged between the side rails and the side handrails; a handrail width adjustment mechanism is arranged between the middle rail and the middle handrail; and both ends of the middle handrail are respectively hinged to the side handrails.

4. A step ladder according to claim 3, characterized in that: The side rails and the middle rails respectively include a fixed rod, and a handrail width adjustment mechanism is provided on the upper part of the fixed rod, and the handrail width adjustment mechanism includes a cross arm, a damper, a reset knob plunger and a movable rod. The sides of the fixed rod and the movable rod are provided with a seat plate with an elongated hole, and the side of the fixed rod is also provided with a plurality of first through holes, and the first through holes correspond to the elongated holes; a cross arm or a plurality of cross arms are provided between the fixed rod and the movable rod, wherein the cross arm includes a first connecting rod and a second connecting rod, and the first connecting rod and the second connecting rod are connected through a damper; one end of the first connecting rod is connected to the first through hole through a reset knob plunger or one end of the second connecting rod, and the other end of the first connecting rod slides in the elongated hole through a pin shaft or is connected to the other end of the second connecting rod; one end of the second connecting rod is connected to the U-shaped seat of the fixed rod or one end of the first connecting rod, and the other end of the second connecting rod is connected to the U-shaped seat of the movable rod or one end of a connecting rod.

5. A lifting step ladder according to claim 4, characterized in that: The damper includes a first damping plate and a second damping plate, which are arranged crosswise, and the small circular holes at both ends of the first damping plate are connected to the two small circular holes of the first connecting rod through screws, and the small circular holes at both ends of the second damping plate are connected to the two small circular holes of the second connecting rod through screws; wherein the large circular hole is arranged between the two small circular holes.

6. The step ladder according to claim 1, characterized in that: The intermediate platform mechanism includes an electric push rod, a parallel rod base and an intermediate platform plate. The telescopic end of the electric push rod is arranged on the base frame mechanism, the fixed end of the electric push rod is connected to the parallel rod base, one side of the parallel rod base is hinged to the connecting rod, the other end of the parallel rod base is hinged to the ramp mechanism, and the top surface of the parallel rod base is provided with an intermediate platform plate.

7. The step ladder according to claim 1, characterized in that: The suspension mechanism comprises a support adjusting mechanism, a suspension rail and an arch frame. The top of the support adjusting mechanism is provided with an arch frame, the middle position of the arch frame is provided with a suspension rail, and the hook can slide along the suspension rail.

8. A step ladder according to claim 7, characterized in that: The support column adjustment mechanism comprises a bottom column and an insertion column. The sides of the bottom column and the insertion column are respectively provided with a plurality of height adjustment holes. The insertion column is inserted into the upper opening of the bottom column and fixed by inserting a pin into the height adjustment hole.

9. The step ladder according to claim 6, characterized in that: The ramp mechanism comprises a ramp frame and a ramp plate, one end of the ramp frame is hinged to one end of the parallel rod base, the other end of the ramp frame is hinged to the base frame mechanism, and the top surface of the ramp frame is provided with a ramp plate.

10. The step ladder according to claim 1, characterized in that: The controller comprises a bracket, a universal articulated frame and a display screen. The bracket is fixed on the side of the base frame mechanism. The top end of the bracket is hinged to one end of the universal articulated frame through a connecting frame. The other end of the universal articulated frame is provided with a display screen.

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