A steering wheel adaptive ground mechanism and a movable terminal having the same

Abstract

The utility model provides a steering wheel adaptive ground mechanism and a movable terminal having the same, comprising a suspension mechanism, a central fixed seat, and a guide shaft, wherein at least two suspension mechanisms are distributed on both sides of the central fixed seat, the guide shaft is installed in the suspension mechanism, and an elastic member is sleeved between the two suspension mechanisms on the guide shaft, and a connecting rod assembly comprises a first end, a second end, and a third end, wherein the first end is rotatably connected to the guide shaft fixed seat, the second end is rotatably connected to the guide shaft movable seat, and the third end is used to connect to an external mechanism, so that when the third end is driven, the guide shaft movable seat is driven to approach or move away from the guide shaft fixed seat, thereby squeezing or stretching the elastic member. Through this arrangement, the steering wheel adaptive ground mechanism can adapt to the uneven ground and maintain balance; it can effectively reduce the vibration, shaking, and tilting generated by the movable terminal having the same when it moves on the uneven ground and slope, thereby improving the transportation speed and transportation safety.

Description

Technical Field

[0001] The utility model relates to the field of mobile robots, in particular to a steering wheel adaptive ground mechanism and a movable terminal with the same. Background Art

[0002] Since existing automatic handling equipment needs to perform complex navigation and movement in warehouses or production workshops, a steering wheel structure is often installed at the bottom of the equipment so that the steering wheel structure can support the smooth movement of the equipment on different ground surfaces. The steering wheel structure can drive the equipment to turn quickly and move accurately, which plays an important role in cargo handling in warehouses.

[0003] However, in the process of applying the steering wheel structure in the current automatic handling equipment, due to problems such as uneven ground and slope changes, the steering wheel is prone to friction with the ground during movement and thus causes shaking, which will have a great impact on the handling stability of the automatic handling equipment, making the operation of the automatic handling equipment not stable and smooth enough. Utility Model Content

[0004] The utility model aims at the above-mentioned deficiencies in the prior art and provides a steering wheel adaptive ground mechanism and a mobile terminal having the same to solve at least one of the above-mentioned technical problems. The specific structure is shown in the figure.

[0005] A steering wheel self-adaptive ground mechanism comprises a suspension mechanism, a central fixing seat, a guide shaft, a moving wheel assembly and a bottom plate installed on the moving wheel assembly.

[0006] The central fixing seat is fixedly connected to the bottom plate, and at least two suspension mechanisms are distributed on both sides of the central fixing seat. The suspension mechanism includes a connecting rod assembly, a guide shaft fixing seat, a guide shaft movable seat and an elastic member.

[0007] The guide shaft passes through a guide shaft movable seat, a central fixed seat, and a guide shaft movable seat of another suspension structure in sequence; one end of the guide shaft is connected to a guide shaft fixed seat of a suspension structure; the other end of the guide shaft is connected to a guide shaft fixed seat of another suspension structure; and the elastic member is sleeved between the two suspension mechanisms on the guide shaft.

[0008] The connecting rod assembly includes a first end, a second end and a third end, wherein the first end is rotatably connected to the guide shaft fixed seat, the second end is rotatably connected to the guide shaft movable seat, and the third end is used to connect to an external mechanism, so that when the third end is driven, the guide shaft movable seat is driven to approach or move away from the guide shaft fixed seat, thereby squeezing or stretching the elastic member. In practical applications, the third end can be driven by the guidance of an external mechanism or by the inertia or gravity of the external mechanism, so that the guide shaft movable seat moves along the guide shaft, approaches or moves away from the guide shaft fixed seat.

[0009] In some specific embodiments, the suspension mechanism includes at least two connecting rod assemblies, wherein the connecting rod assembly includes: a first connecting rod and a second connecting rod.

[0010] The middle part of the first connecting rod is rotatably connected to one end of the second connecting rod, the other end of the second connecting rod is rotatably connected to the guide shaft fixed seat as the first end, one end of the first connecting rod is rotatably connected to the guide shaft movable seat as the second end, and the other end of the first connecting rod is rotatably connected to the external mechanism as the third end.

[0011] In some specific embodiments, there are multiple guide shafts, and the number of elastic members is N times the number of guide shafts, where N>=1.

[0012] In some specific embodiments, the elastic member includes a spring member, the guide shaft movable seat includes a limiting portion, the guide shaft passes through the limiting portion, and the spring member is sleeved on the guide shaft at a position between the limiting portion of the guide shaft movable seat and the central fixed seat.

[0013] In some specific embodiments, the guide shaft enters into and passes through the guide shaft fixing seat from one side of the guide shaft fixing seat in the extension direction thereof.

[0014] A blocking member is fixedly arranged on the other side of the guide shaft fixing seat, which covers the position on the other side of the guide shaft fixing seat corresponding to the guide shaft entering the guide shaft fixing seat, and is used to fix one end of the guide shaft in the guide shaft fixing seat.

[0015] In some specific embodiments, a suspension fixing seat is further included, which is rotatably connected to the third end of the connecting rod assembly for connecting to an external mechanism.

[0016] In some specific embodiments, it also includes a first rotating shaft and a second rotating shaft, and the first connecting rod is rotatably connected to the movable seat of the guide shaft through the first rotating shaft; the second connecting rod is rotatably connected to the rod portion of the first connecting rod through the second rotating shaft.

[0017] In some specific embodiments, a self-lubricating gasket is further included, and the self-lubricating gasket is respectively sleeved on the connection area between the first connecting rod and the first rotating shaft, and / or the connection area between the second connecting rod and the second rotating shaft.

[0018] In some specific embodiments, the length of the first connecting rod is greater than that of the second connecting rod, and an angle is formed between the first connecting rod and the second connecting rod.

[0019] In some specific embodiments, the moving wheel assembly includes a driving mechanism and at least one omnidirectional wheel connected to the driving mechanism.

[0020] In a specific embodiment, it includes two parallel guide shafts and two suspension mechanisms. The two ends of the guide shaft are respectively connected to the guide shaft fixing seats of the two suspension mechanisms. The guide shaft starts from the guide shaft fixing seat connected at one end, passes through the guide shaft movable seat, the center fixing seat of one suspension mechanism, and the guide shaft movable seat of the other suspension mechanism in sequence, and reaches the guide shaft fixing seat connected at the other end. Among them, an elastic member is also sleeved on the area between the center fixing seat and the guide shaft movable member of the suspension mechanism on each guide shaft, and the same guide shaft is sleeved on both sides of the center fixing seat through which it passes.

[0021] Furthermore, the suspension mechanism includes two groups of connecting rod assemblies, and the two groups of connecting rod assemblies of each suspension mechanism are symmetrically arranged relative to the area where the guide shaft is located. The two suspension mechanisms are symmetrically arranged relative to the central fixing seat. It should be noted that the present application does not limit the suspension mechanisms installed on the same base plate to have the same length. The symmetrical arrangement of the two suspension mechanisms relative to the central fixing seat is only one of the possible implementation schemes. In actual applications, the length of each suspension mechanism and the specific length of the first connecting rod and the second connecting rod in the suspension mechanism can be set according to actual needs.

[0022] In a second aspect, a mobile terminal is proposed, which includes any one of the steering wheel adaptive ground mechanisms in the aforementioned technical solutions.

[0023] Beneficial effects: The utility model provides a steering wheel adaptive ground mechanism and a movable terminal having the same. By setting components such as a guide shaft and a suspension mechanism, the guide shaft is installed in the suspension mechanism, and the elastic member is sleeved between the two suspension mechanisms on the guide shaft, so that the suspension mechanism can be guided by an external mechanism or driven by the inertia or gravity of the external mechanism, thereby squeezing or stretching the elastic member. The vibration and shaking generated by the steering wheel adaptive ground mechanism during operation can be offset by the deformation of the elastic member and adapt to the ground conditions where it is located. The movement of the movable terminal having the same can be smoother, which can effectively improve the movement efficiency and movement safety of the movable terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 This is a three-dimensional structural schematic diagram of the utility model;

[0026] Figure 2 It is a side view structural schematic diagram of the utility model;

[0027] Figure 3 It is a schematic diagram of the position of the suspension mechanism of the utility model in the whole;

[0028] Figure 4 It is a schematic diagram of the top structure of the utility model.

[0029] The figure numbers are as follows: 1-suspension mechanism; 11-connecting rod assembly; 111-first connecting rod; 112-second connecting rod; 12-guide shaft fixing seat; 121-blocking member; 13-guide shaft movable seat; 131-limiting part; 14-elastic member; 15-suspension fixing seat; 16-first rotating shaft; 17-second rotating shaft; 18-third rotating shaft; 19-self-lubricating gasket; 2-center fixing seat; 3-guide shaft; 4-moving wheel assembly; 41-base plate; 5-driving mechanism; 6-first suspension mechanism; 7-second suspension mechanism. DETAILED DESCRIPTION

[0030] The concept, specific structure and technical effects of the present invention will be clearly and completely described below in combination with the embodiments and drawings to fully understand the purpose, features and effects of the present invention.

[0031] In the following, various embodiments of the present invention will be described more fully. The present invention may have various embodiments, and adjustments and changes may be made therein. However, it should be understood that there is no intention to limit the various embodiments of the present invention to the specific embodiments disclosed herein, but rather the present invention should be understood to cover all adjustments, equivalents and / or alternatives that fall within the spirit and scope of the various embodiments of the present invention.

[0032] Hereinafter, the terms "include" or "may include" used in various embodiments of the present invention indicate the presence of disclosed functions, operations or elements, and do not limit the addition of one or more functions, operations or elements. In addition, as used in various embodiments of the present invention, the terms "include", "have" and their cognates are intended only to indicate specific features, numbers, steps, operations, elements, components or combinations of the foregoing, and should not be understood as first excluding the presence of one or more other features, numbers, steps, operations, elements, components or combinations of the foregoing or the possibility of adding one or more features, numbers, steps, operations, elements, components or combinations of the foregoing.

[0033] In various embodiments of the present invention, the expression "or" or "at least one of A or / and B" includes any combination or all combinations of the words listed at the same time. For example, the expression "A or B" or "at least one of A or / and B" may include A, may include B, or may include both A and B.

[0034] The expressions (such as "first", "second", etc.) used in the various embodiments of the present invention may modify the various components in the various embodiments, but may not limit the corresponding components. For example, the above expressions do not limit the order and / or importance of the elements. The above expressions are only used for the purpose of distinguishing one element from other elements. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, without departing from the scope of the various embodiments of the present invention, the first element may be referred to as the second element, and similarly, the second element may also be referred to as the first element.

[0035] It should be noted that in the present invention, unless otherwise clearly specified and defined, the terms "installation", "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the present invention, those skilled in the art need to understand that the terms indicating orientation or positional relationship herein are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] The terms used in the various embodiments of the present invention are only used for the purpose of describing specific embodiments and are not intended to limit the various embodiments of the present invention. As used herein, the singular form is intended to also include the plural form, unless the context clearly indicates otherwise. Unless otherwise defined, all terms used herein (including technical terms and scientific terms) have the same meaning as the meanings commonly understood by ordinary technicians in the field of the various embodiments of the present invention. The terms (such as the terms defined in the dictionary used in general) will be interpreted as having the same meaning as the contextual meaning in the relevant technical field and will not be interpreted as having an idealized meaning or an overly formal meaning, unless clearly defined in the various embodiments of the present invention.

[0038] Embodiment 1

[0039] This embodiment provides a steering wheel adaptive ground mechanism, and the specific scheme is as follows:

[0040] A steering wheel self-adaptive ground mechanism comprises a suspension mechanism 1, a central fixing seat 2, a guide shaft 3, a moving wheel assembly 4 and a bottom plate 41 mounted on the moving wheel assembly 4.

[0041] The central fixing seat 2 is fixedly connected to the bottom plate 41, and at least two suspension mechanisms 1 are distributed on both sides of the central fixing seat 2. The suspension mechanism 1 includes a connecting rod assembly 11, a guide shaft fixing seat 12, a guide shaft movable seat 13 and an elastic member 14.

[0042] The guide shaft 3 passes through the guide shaft movable seat 13 of a suspension mechanism 1, the central fixed seat 2, and the guide shaft movable seat 13 of another suspension structure in sequence; one end of the guide shaft is connected to the guide shaft fixed seat 12 of a suspension structure; the other end of the guide shaft 3 is connected to the guide shaft fixed seat 12 of another suspension structure; the elastic member 14 is sleeved between the two suspension mechanisms 1 on the guide shaft 3, and the specific structure is as follows Figure 1 shown.

[0043] The connecting rod assembly 11 includes a first end, a second end and a third end, wherein the first end is rotatably connected to the guide shaft fixed seat 12, the second end is rotatably connected to the guide shaft movable seat 13, and the third end is used to connect to an external mechanism, so that when the third end is driven, the guide shaft movable seat 13 is driven to approach or move away from the guide shaft fixed seat 12, thereby squeezing or stretching the elastic member 14. In practical applications, the third end can be driven by the guidance of an external mechanism or by the inertia or gravity of the external mechanism, so that the guide shaft movable seat 13 moves along the guide shaft, approaches or moves away from the guide shaft fixed seat 12.

[0044] In some specific embodiments, the suspension mechanism 1 includes at least two connecting rod assemblies 11 , wherein the connecting rod assembly 11 includes a first connecting rod 111 and a second connecting rod 112 .

[0045] The middle part of the first connecting rod 111 is rotatably connected to one end of the second connecting rod 112, the other end of the second connecting rod 112 is rotatably connected to the guide shaft fixed seat 12 as the first end, one end of the first connecting rod 111 is rotatably connected to the guide shaft movable seat 13 as the second end, and the other end of the first connecting rod 111 is rotatably connected to the external mechanism as the third end.

[0046] In some specific embodiments, there are multiple guide shafts 3, and the number of elastic members 14 is N times the number of guide shafts 3, where N>=1. In practical applications, multiple elastic members 14 can be mounted on each guide shaft 3, and the user can adjust the number of elastic members 14 according to specific needs.

[0047] In some specific embodiments, the elastic member 14 includes a spring member, the guide shaft movable seat 13 includes a limiting portion 131, the guide shaft 3 passes through the limiting portion 131, and the spring member is sleeved on the guide shaft and located between the limiting portion 131 of the guide shaft movable seat 13 and the central fixed seat 2.

[0048] In some specific embodiments, the guide shaft 3 enters into and passes through the guide shaft fixing seat 12 from one side of the guide shaft fixing seat 12 in the extending direction thereof.

[0049] A blocking member 121 is fixedly arranged on the other side of the guide shaft fixing seat 12, and the blocking member 121 covers the position of the other side of the guide shaft fixing seat 12 corresponding to the guide shaft 3 entering the guide shaft fixing seat 12, and is used to fix one end of the guide shaft 3 in the guide shaft fixing seat 12. By providing this blocking member 121, the one end of the guide fixed in the guide shaft fixing seat 12 can be further stabilized to prevent the guide shaft 3 from passing through the guide shaft fixing seat 12 due to external force.

[0050] In some specific embodiments, a suspension fixing seat 15 is further included. The suspension fixing seat 15 is rotatably connected to the third end of the connecting rod assembly 11 for connecting with an external mechanism.

[0051] In some specific embodiments, the first rotating shaft 16 and the second rotating shaft 17 are further included, and the first connecting rod 111 is rotatably connected to the guide shaft movable seat 13 via the first rotating shaft 16; the second connecting rod 112 is rotatably connected to the rod portion of the first connecting rod 111 via the second rotating shaft 17. In a specific embodiment, the third rotating shaft 18 is further included, and the second connecting rod 112 is rotatably connected to the guide shaft fixed seat 12 via the third rotating shaft 18.

[0052] In some specific embodiments, a self-lubricating gasket 19 is further included, and the self-lubricating gasket 19 is respectively sleeved on the connection area between the first connecting rod 111 and the first rotating shaft 16, and / or the connection area between the second connecting rod 112 and the second rotating shaft 17. In practical applications, the self-lubricating gasket 19 can be a sliding bearing gasket, which can reduce the friction between the connecting rod and the rotating shaft and the guide shaft 3, so that the rotation or movement of each component is more flexible.

[0053] In some specific embodiments, the length of the first connecting rod 111 is greater than that of the second connecting rod 112, and an angle is formed between the first connecting rod 111 and the second connecting rod 112, such as Figure 2 As shown in the middle angle α.

[0054] In some specific embodiments, the moving wheel assembly 4 includes a driving mechanism 5 and at least one omnidirectional wheel connected to the driving mechanism 5 .

[0055] In a specific embodiment, it includes two parallel guide shafts 3 and two suspension mechanisms 1. The two ends of the guide shaft 3 are respectively connected to the guide shaft fixing seats 12 of the two suspension mechanisms 1. The guide shaft 3 starts from the guide shaft fixing seat 12 connected at one end, passes through the guide shaft movable seat 13 of one suspension mechanism 1, the center fixing seat 2, and the guide shaft movable seat 13 of the other suspension mechanism 1 in sequence, and reaches the guide shaft fixing seat 12 connected at the other end. Among them, an elastic member 14 is also sleeved on the area between the center fixing seat 2 and the guide shaft movable member of the suspension mechanism 1 on each guide shaft, and the same guide shaft 3 is sleeved on both sides of the center fixing seat 2 through which it passes.

[0056] Furthermore, the suspension mechanism 1 includes two groups of connecting rod assemblies 11. The two groups of connecting rod assemblies 11 of each suspension mechanism 1 are symmetrically arranged relative to the area where the guide shaft 3 is located. The two suspension mechanisms 1 are symmetrically arranged relative to the central fixing seat 2. Figure 4 It should be noted that the present application does not limit the suspension mechanisms 1 installed on the same base plate 41 to have the same length. The symmetrical arrangement of the two suspension mechanisms 1 relative to the central fixing seat 2 is only one possible implementation scheme. In practical applications, the length of each suspension mechanism 1 and the specific lengths of the first connecting rod 111 and the second connecting rod 112 in the suspension mechanism 1 can be set according to actual needs.

[0057] In a specific embodiment, when the moving wheel assembly 4 moves on an uneven ground, the base plate 41 connected to the moving wheel assembly 4 will vibrate, shake or tilt. In the present application, the connecting rod assembly 11 in the suspension mechanism 1 on the base plate 41 will move along the guide shaft 3 due to the inertia generated by the vibration, shaking or tilting. Specifically, one end of the first connecting rod 111 may drive the guide shaft movable seat 13 to move along the guide shaft 3, and pull up or squeeze the elastic member 14 sleeved between the guide shaft movable seat 13 and the central fixed seat 2, so as to transmit the force generated by the inertia to the elastic member 14, so that the elastic member 14 can play a shock absorbing role on the base plate 41. Furthermore, through the movement of the first link 111 and the second link 112 in the connecting rod assembly 11, since one end of the second link 112 is rotatably connected to the guide shaft fixing seat 12, when the second link 112 is connected to the middle part of the first link 111, it has a pulling effect on the middle part of the first link 111, resulting in a change in the angle α between the first link 111 and the second link 112, which further drives the height of the suspension fixing seat 15 for connecting the external mechanism on one end of the first link 111 to change. When the angle α becomes larger, the suspension fixing seat 15 is lifted by the first link 111 and the relative height between it and the bottom plate 41 becomes higher; when the angle α becomes smaller, the suspension fixing seat 15 is driven by the first link 111 to descend and the relative height between it and the bottom plate 41 becomes lower. This allows the plane where the suspension fixing seat 15 is located to remain parallel or nearly parallel to the horizontal plane when the moving wheel assembly 4 is on a slope or an uneven plane.

[0058] In a specific embodiment, Figure 3As shown, the two suspension mechanisms 1 are respectively a first suspension mechanism 6 and a second suspension mechanism 7, and the two suspension mechanisms are symmetrically arranged relative to the central fixing seat 2. When the two suspension mechanisms 1 are located at different heights, such as when the steering wheel adaptive ground mechanism is in an uphill state, the first suspension mechanism 6 faces the uphill side, and the second suspension mechanism 7 faces the downhill side. In this case, the changes in the connecting rod assemblies 11 in the two suspension mechanisms 1 may be opposite. For example, in the first suspension mechanism 6, the guide shaft movable seat 13 approaches the central fixed seat 2, so that the elastic member 14 located in the first suspension mechanism 6 is squeezed, the angle α between the first connecting rod 111 and the second connecting rod 112 in the first suspension mechanism 6 is reduced, and the suspension fixed seat 15 is driven down by the first connecting rod 111 and the relative height between the base plate 41 becomes lower; in the second suspension mechanism 7, the guide shaft movable seat 13 is away from the central fixed seat 2, so that the elastic member 14 located in the first suspension mechanism 6 is stretched, the angle α between the first connecting rod 111 and the second connecting rod 112 in the first suspension mechanism 6 is increased, and the suspension fixed seat 15 is driven down by the first connecting rod 111 and the relative height between the base plate 41 becomes higher, thereby achieving that the plane where the suspension fixed seat 15 in the first suspension mechanism 6 and the suspension fixed seat 15 in the second suspension mechanism 7 coexist can be unaffected by the uphill state of the moving wheel assembly 4, and remain parallel or nearly parallel to the horizontal plane. This ensures that the external mechanism connected to the suspension fixing seat 15 will not tilt with the inclination of the slope, but will remain relatively stable with the horizontal plane.

[0059] Through this setting, the external mechanism connected to the suspension fixed seat 15 can maintain dynamic balance during the movement of the moving wheel assembly 4, and the steering wheel adaptive ground mechanism can adapt to the ground during the movement without causing obvious vibration or tilt, and the operation is more stable.

[0060] This embodiment provides a steering wheel self-adaptive ground mechanism, which is provided with components such as a guide shaft and a suspension mechanism, the guide shaft is installed in the suspension mechanism, and the elastic member is sleeved between the two suspension mechanisms on the guide shaft, so that the suspension mechanism can be guided by an external mechanism or driven by the inertia or gravity of the external mechanism, thereby squeezing or stretching the elastic member. The vibration and shaking generated by the steering wheel self-adaptive ground mechanism during operation can be offset by the deformation of the elastic member, so that the steering wheel can operate smoothly and adapt to the ground conditions on which it is located, which can effectively enhance its operating stability and safety, and further improve its operating efficiency.

[0061] Embodiment 2

[0062] This embodiment provides a mobile terminal, which includes any one of the steering wheel adaptive ground mechanisms in the first embodiment. The specific scheme is as follows:

[0063] In some specific embodiments, a carrying structure is connected to the movable terminal for placing articles, and the movable terminal is used to carry the articles. In practical applications, the steering wheel adaptive ground mechanism is connected to the carrying structure through the suspension fixing seat 15 therein.

[0064] In actual use, one or more steering wheel adaptive ground mechanisms may be provided, and the movable terminal may be moved by the movable wheel assembly 4 in the steering wheel adaptive ground mechanism. The movable wheel assembly 4 may include a universal wheel, and under normal circumstances, the movable wheel assembly 4 may move in the extension direction of the guide shaft 3 installed on the bottom plate 41. During the movement of the movable terminal, when the plane on which the movable terminal moves is uneven or changes in slope occur so that the movable terminal may vibrate or shake, the elastic member 14 sleeved in the connecting rod assembly 11 in the steering wheel adaptive ground mechanism will be squeezed or stretched, so that the movable seat 13 of the guide shaft moves along the extension direction of the guide shaft 3, further driving the first connecting rod 111 connected to the movable seat 13 of the guide shaft and the second connecting rod 112 pulled by the first connecting rod 111 to move, and finally causing the suspension fixing seat 15 connected to the first connecting rod 111 to be lifted or lowered.

[0065] When the mobile terminal is located on a slope, the suspension mechanisms 1 distributed on both sides of the central fixed seat 2, the suspension mechanism 1 facing the uphill direction of the slope will drive the suspension fixed seat 15 to descend, and the suspension mechanism 1 facing the downhill direction of the slope will drive the suspension fixed seat 15 to rise, so that the plane where the suspension fixed seats 15 connected to the two suspension mechanisms 1 are located can still maintain a dynamic equilibrium state parallel to or close to the horizontal plane direction when the mobile mechanism is in an inclined state on the slope as a whole, which can further enable the external mechanism connected to the suspension fixed seat 15 of the mobile terminal to maintain the original equilibrium state when it passes through an uneven surface or goes up and down the slope. At the same time, the shaking force generated by the movement of the moving wheel assembly 4 on the uneven surface can also be eliminated by the horizontal movement of the suspension mechanism 1 along the guide shaft 3 and the elastic deformation of the elastic member 14 to generate a reaction force, and finally achieve a shock-absorbing effect during the operation of the mobile terminal, so that the movement process of the mobile terminal can be more stable, and the movement speed, movement safety and transportation efficiency of the mobile terminal are further improved.

[0066] This embodiment provides a mobile terminal, which applies the steering wheel adaptive ground mechanism described in the above technical solution, so that the suspension mechanism in the steering wheel adaptive ground mechanism can be guided by an external mechanism or driven by the inertia or gravity of the external mechanism, thereby squeezing or stretching the elastic member. The vibration and shaking generated by the steering wheel adaptive ground mechanism during operation can be offset by the deformation of the elastic member, so that the movement of the mobile terminal with the steering wheel adaptive ground mechanism can be more stable, which can effectively improve the movement efficiency and movement safety of the mobile terminal.

[0067] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A steering wheel adaptive ground mechanism, characterized in that: It includes a suspension mechanism, a central fixing seat, a guide shaft, a moving wheel assembly and a bottom plate installed on the moving wheel assembly; The central fixing seat is fixedly connected to the bottom plate, and at least two of the suspension mechanisms are distributed on both sides of the central fixing seat; The suspension mechanism includes a connecting rod assembly, a guide shaft fixing seat, a guide shaft movable seat and an elastic member; The guide shaft passes through the guide shaft movable seat of one suspension mechanism, the central fixed seat, and the guide shaft movable seat of another suspension mechanism in sequence; one end of the guide shaft is connected to the guide shaft fixed seat of one suspension mechanism; the other end of the guide shaft is connected to the guide shaft fixed seat of another suspension mechanism; the elastic member is sleeved between the two suspension mechanisms on the guide shaft; The connecting rod assembly includes a first end, a second end and a third end, the first end is rotatably connected to the guide shaft fixed seat, the second end is rotatably connected to the guide shaft movable seat, and the third end is used to connect to an external mechanism so that when the third end is driven, the guide shaft movable seat is driven to move closer to or away from the guide shaft fixed seat, thereby squeezing or stretching the elastic member.

2. A steering wheel adaptive ground mechanism according to claim 1, characterized in that: The suspension mechanism comprises at least two of the connecting rod assemblies; The connecting rod assembly comprises: a first connecting rod and a second connecting rod; The middle part of the first connecting rod is rotatably connected to one end of the second connecting rod, the other end of the second connecting rod is rotatably connected to the guide shaft fixed seat as the first end, one end of the first connecting rod is rotatably connected to the guide shaft movable seat as the second end, and the other end of the first connecting rod is rotatably connected to the external mechanism as the third end.

3. The steering wheel adaptive ground mechanism according to claim 1, characterized in that: There are a plurality of guide shafts, and the number of the elastic members is N times the number of the guide shafts, wherein N>=1.

4. The steering wheel adaptive ground mechanism according to claim 1, characterized in that: The elastic member includes a spring member, the guide shaft movable seat includes a limiting portion, the guide shaft passes through the limiting portion, and the spring member is sleeved on the guide shaft at a position between the limiting portion of the guide shaft movable seat and the central fixed seat.

5. The steering wheel adaptive ground mechanism according to claim 1, characterized in that: The guide shaft enters and passes through the guide shaft fixing seat from one side of the guide shaft fixing seat in its extending direction; A blocking member is fixedly arranged on the other side of the guide shaft fixing seat, and the blocking member covers the other side of the guide shaft fixing seat corresponding to the position where the guide shaft enters the guide shaft fixing seat, and is used to fix one end of the guide shaft in the guide shaft fixing seat.

6. The steering wheel adaptive ground mechanism according to claim 1, characterized in that: It also includes a suspension fixing seat, which is rotatably connected to the third end of the connecting rod assembly and is used to be connected to an external mechanism.

7. The steering wheel adaptive ground mechanism according to claim 2, characterized in that: Also includes a first rotating shaft and a second rotating shaft; The first connecting rod is rotatably connected to the guide shaft movable seat via the first rotating shaft; The second connecting rod is rotatably connected to the middle part of the first connecting rod through the second rotating shaft.

8. The steering wheel adaptive ground mechanism according to claim 7, characterized in that: It also includes a self-lubricating gasket, which is respectively sleeved on the connection area between the first connecting rod and the first rotating shaft, and / or the connection area between the second connecting rod and the second rotating shaft.

9. The steering wheel adaptive ground mechanism according to claim 2, characterized in that: The length of the first connecting rod is greater than that of the second connecting rod, and an angle is formed between the first connecting rod and the second connecting rod.

10. A mobile terminal, characterized in that: It comprises the steering wheel adaptive ground mechanism as described in any one of claims 1-9.

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