Step ladder for Stewart parallel robot six-degree-of-freedom platform

Abstract

The utility model relates to the technical field of automation control, and discloses a step ladder for a six-degree-of-freedom platform of a Stewart parallel robot, which comprises a step ladder body arranged on one side of the six-degree-of-freedom platform of the Stewart parallel robot, and the step ladder body consists of a first pedal area, a second pedal area and a third pedal area. The short pipes are sleeved with the long pipes and fixed through the bolts, so that quick assembly, assembly and disassembly are achieved, operation is simple, meanwhile, the size of a single module is small, transportation is convenient, loading and transportation space is reduced, transportation cost is reduced, the drawer is designed below the single module, valuables of a user can be stored, and the service life of the module is prolonged. According to the anti-skidding ladder, the situation that valuables are thrown out due to shaking and swinging of a user in the operation process is prevented, meanwhile, the anti-skidding effect can be achieved by installing the anti-skidding protrusions, and the phenomenon that the feet of the user slip when the user climbs the ladder is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automation control technology, especially relates to a step ladder for Stewart parallel robot six degree of freedom platform. BACKGROUND

[0002] Six degree of freedom platform is a kind of device that can simulate the six degree of freedom motion of object in three-dimensional space, is widely used in flight simulator, motion testing equipment and virtual reality system, six-dimensional force sensor can simultaneously measure the force and moment of object in three-dimensional space, with high precision and multidimensional testing characteristics, when user gets on six degree of freedom platform, step ladder is needed to be used to facilitate user to get on six degree of freedom platform operation experience.

[0003] The prior art has the following shortcomings:

[0004] Firstly, the step ladder of the existing Stewart parallel robot six degree of freedom platform usually directly uses the commonly used simple step ladder to undertake, and the daily step ladder is large in size, is inconvenient to disassemble and install to save the occupied space, and in the process that user gets on the step ladder, is in the state of suspension, especially the child experimenter, and the foot is prone to instability and prone to falling phenomenon, and the protection needs to be further optimized and optimized;

[0005] Secondly, when user gets on six degree of freedom platform experience, the body will appear to sway in the process of experience, and the valuable articles on the body of user are prone to fall out, and further improvement is needed.

[0006] Therefore, we need to design a step ladder for Stewart parallel robot six degree of freedom platform to solve the above problems. CONTENT OF THE UTILITY MODEL

[0007] The utility model aims at providing a step ladder for Stewart parallel robot six degree of freedom platform to solve the problem that the existing promotional material display stand is difficult to attract different age groups in the above background.

[0008] In order to achieve the above object, the utility model provides the following technical scheme: a step ladder for Stewart parallel robot six degree of freedom platform, including step ladder body, its setting in one side of Stewart parallel robot six degree of freedom platform, the step ladder body is by first foot area, second foot area and third foot area is composed, the bottom of first foot area, second foot area and third foot area is supported and fixed respectively through support frame, the inner side of support frame below first foot area, second foot area and third foot area is movably connected with drawer, and the front end of drawer is fixed with handle, one side of the bottom of support frame is fixed with short tube, the side away from short tube of support frame is fixed with long tube, and the inside of long tube is provided with built-in groove, short tube is inserted into the inside of built-in groove, and they are fixed through bolt.

[0009] Preferably, the first foot area, the second foot area and the third foot area are fixed with anti-skid protrusions above them, which are arranged at equal intervals on the surfaces of the first foot area, the second foot area and the third foot area.

[0010] Preferably, the width of the built-in groove is equal to the width of the short tube, and the outer side of the short tube is connected with the inner side of the built-in groove.

[0011] Preferably, the first foot area, the second foot area and the third foot area are fixed with fixed seats at both ends above them, and the inside of the fixed seat is movably connected with an active extension rod, and the upper side of the active extension rod is fixed with a curved handrail made of rubber.

[0012] Preferably, the inside of the fixed seat is rotatably connected with a threaded rod, and the outer side of the threaded rod is fixed with a second bevel gear, the inner wall of the fixed seat is rotatably connected with a rotating rod, and the outer side of the rotating rod is fixed with a first bevel gear, the first bevel gear is meshingly connected with the second bevel gear, the outer side of the fixed seat is rotatably connected with a hand wheel, the inside of the active extension rod is provided with a threaded groove, and the threaded groove is threadedly connected with the threaded rod.

[0013] Preferably, the two sides of the threaded groove are fixed with sliding blocks, and the inner wall of the fixed seat is provided with sliding blocks, and the sliding blocks are slidably connected with the sliding grooves to guide and limit the active extension rod.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] (1) through the short pipe into the inside of the long pipe, and is fixed by using bolt, realizes quick combination installation and disassembly, simple operation, while the single module volume is small, convenient transportation, reduces the space of loading and transporting, reduces the transportation cost, the drawer is designed below the single module, can accomodate the valuable articles of the user, prevents the valuable articles from being thrown out due to shaking in the process of operation, and the anti-skid convex is installed, which can prevent the phenomenon of slipping when the user goes up the stairs;

[0016] (2) through the installation of the curved handrail, the supporting and protecting effect can be achieved, when the child climbs the stairs, the hand of the child can be supported, so that the body is in a balanced state, and the phenomenon of falling down is not easy to occur, thereby the safety factor is improved, the safety performance and use comfort of the user are ensured, and the lifting structure is arranged in the inside, so that a large amount of occupied space can be saved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0018] Figure 1 It is a whole three-dimensional structure schematic diagram of the present application;

[0019] Figure 2 It is a step ladder body combination structure schematic diagram of the present application;

[0020] Figure 3 It is a whole structure schematic diagram of the step ladder body of the present application;

[0021] Figure 4 It is a side view plane structure schematic diagram of the step ladder body of the present application;

[0022] Figure 5 It is a front view cross-section structure schematic diagram of the curved handrail of the present application.

[0023] Explanation of reference numerals in the drawings: 1, step ladder body; 2, first foot pedal area; 3, second foot pedal area; 4, third foot pedal area; 5, curved handrail; 6, movable extension rod; 7, fixed seat; 8, short pipe; 9, long pipe; 10, built-in groove; 11, anti-skid convex; 12, drawer; 13, handle; 14, support frame; 15, hand wheel; 16, rotating rod; 17, first bevel gear; 18, second bevel gear; 19, threaded rod; 20, sliding block; 21, sliding groove; 22, threaded groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0025] Embodiment one

[0026] In order to solve the problem that the existing publicity material display stand is difficult to attract different age groups, the following scheme is disclosed, as shown in Figure 1 、 Figure 2 and Figure 4 ,

[0027] A step ladder for a Stewart parallel robot six-degree-of-freedom platform, comprising a step ladder body 1 arranged on one side of the Stewart parallel robot six-degree-of-freedom platform, the step ladder body 1 being composed of a first footrest area 2, a second footrest area 3 and a third footrest area 4, the bottom ends of the first footrest area 2, the second footrest area 3 and the third footrest area 4 being fixedly supported by support frames 14, the inner sides of the support frames 14 below the first footrest area 2, the second footrest area 3 and the third footrest area 4 being movably connected with drawers 12, and the front ends of the drawers 12 being fixedly provided with handles 13, one side of the bottom end of the support frame 14 being fixedly provided with a short pipe 8, the side of the support frame 14 away from the short pipe 8 being fixedly provided with a long pipe 9, and the inside of the long pipe 9 being provided with an embedded groove 10, the short pipe 8 being inserted into the embedded groove 10 and being fixedly connected with the embedded groove 10 by bolts;

[0028] The top of the first footrest area 2, the second footrest area 3 and the third footrest area 4 is fixedly provided with anti-skid protrusions 11 which are arranged at equal intervals on the surfaces of the first footrest area 2, the second footrest area 3 and the third footrest area 4.

[0029] The width of the embedded groove 10 is equal to the width of the short pipe 8, and the outer side of the short pipe 8 is connected with the inner side of the embedded groove 10.

[0030] In the embodiment, when the step ladder body 1 is not used, it needs to be disassembled, the bolt is rotated to separate it from the threaded hole, and then the short pipe 8 is pulled out of the inside of the long pipe 9, and when it needs to be installed, the reverse operation can be performed, which is simple and convenient, so that the step ladder body 1 can be disassembled into single modules, the single modules are small in size, convenient to transport, reduce the space for loading and transporting, and reduce the transportation cost.

[0031] Embodiment two

[0032] The embodiment is different from the first embodiment, and the curved handrail 5 can play a protection effect, and details are shown in the second foot pedal area 3 and the curved handrail 5.

[0033] Two ends above the first foot pedal area 2, the second foot pedal area 3 and the third foot pedal area 4 are respectively fixed with fixed seats 7, the inside of the fixed seat 7 is movably connected with an active extension rod 6, the upper part of the active extension rod 6 is fixed with a curved handrail 5, and the material of the curved handrail 5 is rubber.

[0034] The inside of the fixed seat 7 is rotatably connected with a threaded rod 19, the outside of the threaded rod 19 is fixed with a second bevel gear 18, the inner wall of the fixed seat 7 is rotatably connected with a rotating rod 16, the outside of the rotating rod 16 is fixed with a first bevel gear 17, the first bevel gear 17 is meshingly connected with the second bevel gear 18, the outside of the fixed seat 7 is rotatably connected with a hand wheel 15, the inside of the active extension rod 6 is provided with a threaded groove 22, and the threaded groove 22 is threadedly connected with the threaded rod 19.

[0035] Both sides of the threaded groove 22 are fixed with sliding blocks 20, the inner wall of the fixed seat 7 is provided with the sliding blocks 20, and the sliding blocks 20 are all slidably connected with sliding grooves 21, so as to guide and limit the active extension rod 6.

[0036] In the embodiment, when the hand wheel 15 is rotated, the active extension rod 6 and the top curved handrail 5 are driven to move up and down under the double actions of the threaded connection and the gear meshing connection, so that the curved handrail 5 is contracted and stretched, does not occupy the use space, and through the installation of the curved handrail 5, the support and protection effect can be achieved.

[0037] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A step ladder for a Stewart parallel robot six degrees of freedom platform, comprising a step ladder body (1) arranged on one side of the Stewart parallel robot six degrees of freedom platform, characterized in that: The step ladder body (1) is composed of a first foot area (2), a second foot area (3) and a third foot area (4), the bottom end of the first foot area (2), the second foot area (3) and the third foot area (4) is supported and fixed by a support frame (14), the inner side of the support frame (14) below the first foot area (2), the second foot area (3) and the third foot area (4) is movably connected with a drawer (12), and the front end of the drawer (12) is fixed with a handle (13), one side of the bottom end of the support frame (14) is fixed with a short pipe (8), the side away from the short pipe (8) of the support frame (14) is fixed with a long pipe (9), and the inside of the long pipe (9) is provided with an embedded groove (10), the short pipe (8) is clamped into the inside of the embedded groove (10), and the two are fixed by bolts.

2. A step ladder for a Stewart parallel robot six degrees of freedom platform according to claim 1, characterized in that: The upper side of the first foot area (2), the second foot area (3) and the third foot area (4) is fixed with anti-skid protrusions (11), which are arranged at equal intervals on the surface of the first foot area (2), the second foot area (3) and the third foot area (4).

3. A step ladder for a Stewart parallel robot six degrees of freedom platform according to claim 1, characterized in that: The width of the embedded groove (10) is equal to the width of the short pipe (8), and the outer side of the short pipe (8) is clamped and connected with the inner side of the embedded groove (10).

4. The step ladder for a Stewart parallel robot six degree of freedom platform according to claim 1, wherein: The two ends of the upper side of the first foot area (2), the second foot area (3) and the third foot area (4) are respectively fixed with fixed seats (7), and the inside of the fixed seat (7) is movably connected with an active extension rod (6), the upper side of the active extension rod (6) is fixed with a curved handrail (5), which is made of rubber.

5. A step ladder for a Stewart parallel robot six degrees of freedom platform according to claim 4, characterized in that: The inside of the fixed seat (7) is rotatably connected with a threaded rod (19), and the outer side of the threaded rod (19) is fixed with a second bevel gear (18), the inner wall of the fixed seat (7) is rotatably connected with a rotating rod (16), and the outer side of the rotating rod (16) is fixed with a first bevel gear (17), the first bevel gear (17) and the second bevel gear (18) are meshed and connected, the outer side of the fixed seat (7) is rotatably connected with a hand wheel (15), the inside of the active extension rod (6) is provided with a threaded groove (22), and the threaded groove (22) is threadedly connected with the threaded rod (19).

6. A step ladder for a Stewart parallel robot six degrees of freedom platform according to claim 5, characterized in that: The two sides of the threaded groove (22) are fixed with sliding blocks (20), the inner wall of the fixed seat (7) is provided with sliding blocks (20), and the sliding blocks (20) are slidably connected with sliding grooves (21) to guide and limit the active extension rod (6).

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