Power boosting trundle module and control device thereof

Abstract

The utility model provides a power boosting trundle module and a control device thereof. The power boosting trundle module at least comprises a base, a rotatable part, a roller, a first rod body, an elastic part and a brake device, the base is used for being attached to one side of an object, and two corresponding side pieces extend from one side of the base to form a support. The rotatable part is arranged on the bracket, is electrically connected with a power supply and is driven to rotate; the roller is arranged on the peripheral side of the rotatable part; the first rod body is fixedly arranged on the object, is pivoted with the base and is positioned between the object and the roller, so that the roller floats when being in contact with the ground; the elastic piece is positioned between the object and the base and has an elastic force towards the ground, so that the roller is more really in contact with the ground; the brake device changes or stops the rotation of the rotatable member.

Description

TECHNICAL FIELD

[0001] The utility model relates to a caster assembled on the bottom surface of an object, in particular to a power-assisted caster module and a control device thereof. BACKGROUND

[0002] In order to facilitate the movement of an object such as a hospital bed, a transport trolley, a cart, a storage cabinet or a tool cabinet, a plurality of casters are usually assembled on the bottom surface of the object, and then the object is moved to a predetermined location in a labor-saving manner by applying force and rolling. Further, a brake device is provided on each caster to prevent unexpected movement of the object.

[0003] Sometimes, the weight of the object plus the load is more than 300 kg, for example, a transport trolley for transporting metal parts, or a hospital bed plus a patient and various medical devices. It is difficult to push the transport trolley or the hospital bed by hand, especially when medical personnel need to race against time to provide emergency medical care, and sometimes there is a medical staff on the hospital bed to perform medical treatment. At this time, it is difficult and time-consuming to push the hospital bed by hand.

[0004] Therefore, how to develop and design a power-assisted caster to achieve the effect of moving an object in a labor-saving, rapid and safe manner is one of the main problems that manufacturers want to solve. SUMMARY

[0005] The main purpose of the utility model is to provide a power-assisted caster module and a control device thereof, which can achieve the effect of moving an object in a labor-saving and rapid manner.

[0006] The secondary purpose of the utility model is to provide a power-assisted caster module and a control device thereof, which can achieve the effect of moving an object in a safe manner.

[0007] The further purpose of the utility model is to provide a power-assisted caster module and a control device thereof, which has better positioning and freedom of moving an object.

[0008] Therefore, in order to achieve the aforementioned purpose, the utility model provides a kind of power boost caster module and control device thereof, it at least includes a pedestal, a rotatable member, a roller, a first rod body, a elastic member and a brake device;The pedestal is used to adhere to the side of an article, the side of the pedestal extends two corresponding side pieces to form a support;The rotatable member is arranged on the support, and is electrically connected to a power supply to be driven to rotate;The roller is arranged on the outer peripheral side of the rotatable member;The first rod body is fixedly arranged between the article and the pedestal and is pivotally connected to the pedestal, so that the roller floats when contacting the ground;The elastic member is located between the article and the pedestal, and has a spring force in the direction of the ground, so that the roller more reliably contacts the ground;The brake device changes or stops the rotation of the rotatable member.

[0009] Specifically, the utility model provides a kind of power boost caster module and control device thereof, at least includes: a pedestal, it is used to adhere to the side of an article, the side of the pedestal extends two corresponding side pieces to form a support at least;A rotatable member is arranged between the two side pieces one end between the support, and is electrically connected to a power supply to be driven to rotate corresponding a rotating shaft to carry out a first angular displacement;A roller is arranged on the outer peripheral side of the rotatable member and is used to be located between the article and a ground;A first rod body is fixedly arranged between the article and the pedestal and is pivotally connected to the pedestal, so that the roller is relative to the first rod body when contacting the ground between a first position and a second position to carry out a second angular displacement;An elastic member is located between the article and the pedestal, one end of the elastic member is attached to the article, the other end of the elastic member is attached to the pedestal or the support, and the elastic member has a spring force in the direction of the ground, so that the roller contacts the ground;A brake device includes a friction part, a linkage part and a starting part;The friction part is arranged on the rotatable member, and is used to abut and rub or not abut and not rub the rotatable member;One end of the linkage part is connected to the friction part;The starting part is arranged on the article, and is connected to the other end of the linkage part, to drive the linkage part, and then drive the friction part to change or stop the first angular displacement of the rotatable member.

[0010] As the preferred technical solution described above, preferably, further comprising a lifting device, the lifting device at least includes a force applying arm and a force applying part;The force applying arm is formed by extending a tab from the other side of the pedestal opposite to the two side pieces;The force applying part is arranged on the article adjacent to the force applying arm, when the force applying part applies force to the force applying arm, the first rod body is used as a lever fulcrum to lift the support so that the roller does not contact the ground.

[0011] As a preferred solution of the above technical scheme, preferably, the force applying part comprises a driving part and a telescopic rod, the driving part is electrically connected with a force applying and lifting switch for driving the telescopic rod to extend or retract, so that the telescopic rod applies force to or does not apply force to the force applying arm.

[0012] As a preferred solution of the above technical scheme, preferably, the rotatable part is a motor or a hub motor electrically connected with a power switch and a driving switch.

[0013] As a preferred solution of the above technical scheme, preferably, the bracket further comprises a second rod body arranged between the two side pieces and between the roller and the first rod body; the elastic part is at least one torsion spring arranged on the first rod body, one end of which is attached to the object and the other end is attached to the second rod body of the bracket.

[0014] As a preferred solution of the above technical scheme, preferably, the brake device is a drum brake, the friction part comprises a drum and a set of brake shoes inside the drum, the connecting part is a steel cable, and the starting part is a brake handle or a motor electrically connected with a brake switch.

[0015] As a preferred solution of the above technical scheme, preferably, the brake device is a disc brake, the friction part comprises a disc and a set of brake shoes adjacent to the disc, the connecting part is a steel cable, and the starting part is a brake handle or a motor electrically connected with a brake switch.

[0016] As a preferred solution of the above technical scheme, preferably, the brake device further comprises providing an electromagnetic effect to the rotatable part for electromagnetic braking.

[0017] As a preferred solution of the above technical scheme, preferably, the brake device further comprises an instant brake switch for instantaneously connecting the connecting part to select from a group consisting of positioning the friction part to abut against the rotatable part and positioning the friction part not to abut against the rotatable part.

[0018] As a preferred solution of the above technical scheme, preferably, the brake device further comprises an instant brake switch for instantaneously connecting the connecting part to select from a group consisting of positioning the friction part to abut against the rotatable part and positioning the friction part not to abut against the rotatable part.

[0019] As a preferred solution of the above technical scheme, preferably, the rotatable part further comprises a fast rotation switch and a slow rotation switch electrically connected, so as to selectively move the object fast or slow.

[0020] As a preferred solution of the above technical scheme, preferably, the rotatable part further comprises a fast rotation switch and a slow rotation switch electrically connected, so as to selectively move the object fast or slow.

[0021] As the preferred technical solution, preferably, the rotatable member further comprises an electrically connected reverse switch, so as to control the forward or backward movement of the object by selecting the rotation direction of the rotatable member.

[0022] As the preferred technical solution, preferably, the rotatable member further comprises an electrically connected reverse switch, so as to control the forward or backward movement of the object by selecting the rotation direction of the rotatable member.

[0023] The utility model also provides a control device, contain above-mentioned force lifting switch, above-mentioned power switch, above-mentioned instant brake switch, above-mentioned fast rotation switch and slow rotation switch and above-mentioned reverse switch.

[0024] The utility model provides a control device, including above-mentioned drive switch and above-mentioned brake switch.

[0025] As the preferred technical solution, preferably, a switch panel is provided on the object.

[0026] As the preferred technical solution, preferably, two handles are provided on the object.

[0027] Below, hold the preferred embodiment of the utility model, and cooperate with the further detailed description as follows with the drawing: BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be a brief introduction to the drawings needed to be used in the embodiment or prior art description, obviously, the drawings in the following description is some embodiments of the utility model, for those skilled in the art, without creative labor, according to these drawings, other drawings can also be obtained.

[0029] Figure 1 It is the three-dimensional schematic view of the preferred embodiment of the utility model.

[0030] Figure 2 It is the three-dimensional schematic view of the preferred embodiment of the utility model. Figure 1 It is the three-dimensional schematic view of the preferred embodiment of the utility model.

[0031] Figure 3 It is the three-dimensional schematic view of the preferred embodiment of the utility model. Figure 1 It is the three-dimensional schematic view of the preferred embodiment of the utility model.

[0032] Figure 4 It is the three-dimensional schematic view of the preferred embodiment of the utility model.

[0033] Wherein, 12 base; 13 rotatable piece; 14 roller; 15 first rod body; 16 elastic piece; 17 brake device; 10 article; 22 side piece; S rotation axis; 24 second rod body; 72 friction part; 74 linkage part; 76 starting part; 721 drum; 722 brake shoe; 18 lifting device; 82 force arm; 84 force part; 841 driving part; 842 telescopic rod. DETAILED DESCRIPTION

[0034] To make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0035] Please refer to Figures 1 to 4 The power-assisted caster module at least includes a base 12, a rotatable piece 13, a roller 14, a first rod body 15, an elastic piece 16 and a brake device 17.

[0036] The base 12 is used to attach to an article 10 such as a frame body, or the article 10 is a bed, a conveying trolley, a cart, a storage cabinet or a tool cabinet, etc. The bottom surface (not shown in the figure) of which is provided with a plurality of casters, and the base 12 extends on one side at least two corresponding side pieces 22 to form a bracket.

[0037] The rotatable piece 13 is arranged in the bracket between the two side pieces 22 at one end, which is electrically connected to a power source, a power switch and a driving switch to be driven to rotate and correspond to a rotation axis S to perform a first angular displacement. The rotatable piece 13 can be a motor or a hub motor, and the power source can be a battery (not shown in the figure) attached to the article 10.

[0038] The roller 14 such as a tire is arranged on the outer circumferential side of the rotatable piece 13 to be located between the article 10 and the ground.

[0039] The first rod body 15 is fixedly arranged on the article 10 and pivotally connected to the base 12 to be located between the article 10 and the roller 14, so that the roller 14 performs a second angular displacement between a first position and a second position relative to the first rod body 15 when contacting the ground.

[0040] The elastic member 16 is located between the object 10 and the base 12, one end of which is attached to the object 10 and the other end of which is attached to the base 12, and the elastic member 16 has a spring force in the direction of the ground, so that the roller can surely contact the ground.

[0041] The support further comprises a second rod body 24, which is arranged between the two side pieces 22 and between the roller 14 and the first rod body 15, so as to improve the structural strength of the support; the elastic member 16 can be at least one torsion spring and is arranged on the first rod body 15, one end of which is attached to the object 10 and the other end of which is attached to the second rod body 24 of the support instead of the base 12, so that the spring force indirectly drives the roller to approach and contact the ground.

[0042] The brake device 17 comprises a friction part 72, a linkage part 74 and an actuating part 76.

[0043] The friction part 72 is arranged on the rotatable member 13, so as to abut and rub or not abut and not rub the rotatable member 13.

[0044] One end of the linkage part 74 is connected to the friction part 72.

[0045] The actuating part 76 is arranged on the object 10 and is connected to the other end of the linkage part 74, so as to drive the linkage part 74, and then drive the friction part 72 to change or stop the first angular displacement of the rotatable member 13.

[0046] The brake device 17 is a drum brake, the friction part 72 comprises a drum 721 and a set of brake shoes 722 (not shown in the figure) arranged inside the drum 721, the linkage part 74 is a steel cable, and the actuating part 76 is a motor or a brake handle (not shown in the figure), so as to tighten or loosen the steel cable, wherein when the actuating part 76 is a motor, the actuating part 76 is electrically connected to a brake switch to start or not start the actuating part 76.

[0047] The brake device 17 can also be a disc brake, the friction part 72 comprises a disc (not shown in the figure) and a set of brake pads (not shown in the figure) adjacent to the disc, the linkage part 74 is a steel cable, and the actuating part 76 is a motor or a brake handle (not shown in the figure).

[0048] Please refer to Figures 1 to 4 The utility model discloses a power-assisted caster module, which further comprises a lifting device 18, which at least comprises a force applying arm 82 and a force applying part 84.

[0049] The force applying arm 82 is formed by extending a tab from the other side of the base 12 opposite to the two side plates 22.

[0050] The force applying part 84 is arranged adjacent to the force applying arm 82 of the object 10. When the force applying part 84 applies force to the force applying arm 82, the first rod 15 is used as a lever fulcrum to reverse the torque of the elastic force to lift the bracket so that the roller 14 does not contact the ground. The roller 14 does not affect or interfere with the direction of the caster of the object 10, for example, when the object 10 needs to move in a direction substantially parallel to the rotation axis S or transversely to the rotation direction of the rotatable member 13.

[0051] The force applying part 84, like an electric cylinder, includes a driving part 841, such as a motor, electrically connected to a force applying lifting switch and a telescopic rod 842. The driving part 841 is used to drive the telescopic rod 842 to extend or retract, so that the telescopic rod 842 applies force to or does not apply force to the force applying arm 82. Of course, the force applying part 84 can be arranged as a block with considerable weight to be placed on the force applying arm 82 to lift the bracket.

[0052] The utility model discloses a power-assisted caster module and its control device, wherein the brake device 17 can further include an electromagnetic effect provided by an electric current to the rotatable member 13 for electromagnetic braking, so that the utility model has the auxiliary braking effect.

[0053] The utility model discloses a power-assisted caster module and its control device, wherein the brake device 17 further includes an instant brake switch to instantaneously lock the friction part 72 in the position of abutting against the rotatable member 13 to form an instant braking state. For example, when the starting part 76 of the brake device 17 is arranged as a motor, a button of the instant brake switch is pressed, and the button is immediately lowered and positioned, so that the friction part 72 is locked in the position of abutting against the rotatable member 13 to form an instant braking state. Subsequently, the button is rotated, and the button is immediately raised and positioned, so that the friction part 72 is in the position of not abutting against the rotatable member 13 to immediately release the braking state. When the object 10 is a bed, a transport trolley, a cart, a storage cabinet or a tool cabinet provided with a plurality of casters and needs to be stopped on a slope, the instant brake switch can achieve the above-mentioned function and has the safety effect. Further, the button is rotated to immediately release the braking state to move the object 10.

[0054] The utility model discloses a power-assisted caster module and its control device, wherein the rotatable member 13 is further electrically connected to a fast rotation switch and a slow rotation switch to selectively fast or slow move the object 10.

[0055] The utility model provides a power boost trolley module and control device, wherein the rotatable member 13 is further electrically connected with a reverse switch to control the forward or backward movement of the object 10 by selecting the rotating direction of the rotatable member 13.

[0056] The utility model provides a power boost trolley module and control device further comprises a first control device such as a switch panel arranged on the object 10, and the power switch, the quick rotating switch, the slow rotating switch, the reverse switch, the force lifting switch and the instant brake switch are arranged on the outer side of the first control device to control the utility model instantly.

[0057] The utility model provides a power boost trolley module and control device further comprises a second control device such as two handles arranged on the object 10, and the two handles are respectively provided with the drive switch and the brake switch on the outer side to control the utility model instantly.

[0058] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A power-assisted caster module and a control device thereof, characterized in that, At least comprising: a base for attaching to one side of an object, the base having at least two opposite side pieces extending to form a support; a rotatable member disposed between the two side pieces at one end thereof, electrically connected to a power source and driven to rotate about a rotation axis to perform a first angular displacement; a roller disposed on the outer periphery of the rotatable member for being located between the object and a ground surface; a first rod body fixed to the object and pivotally connected to the base between the object and the roller, such that the roller performs a second angular displacement relative to the first rod body between a first position and a second position when contacting the ground surface; a resilient member located between the object and the base, one end of which is attached to the object and the other end of which is attached to the base or the support, the resilient member having a spring force in the direction of the ground surface, such that the roller contacts the ground surface; a brake device comprising a friction portion, a linkage portion and an activation portion; the friction portion is disposed on the rotatable member for abutting and rubbing against the rotatable member or not abutting and not rubbing against the rotatable member; one end of the linkage portion is connected to the friction portion; the activation portion is disposed on the object and connected to the other end of the linkage portion for driving the linkage portion, thereby driving the friction portion to change or stop the first angular displacement of the rotatable member.

2. The power-assisted caster module and control device thereof according to claim 1, wherein, Further comprising a lifting device, the lifting device comprising at least a force applying arm and a force applying portion; the force applying arm extends from the other side of the base opposite to the two side pieces to form a tab; the force applying portion is disposed on the object adjacent to the force applying arm, when the force applying portion applies force to the force applying arm, the first rod body is used as a lever fulcrum to lift the support so that the roller does not contact the ground surface.

3. The power-assisted caster module and control device thereof according to claim 2, wherein, the force applying portion comprises a driving portion and a telescopic rod, the driving portion is electrically connected to a force applying and lifting switch for driving the telescopic rod to extend or retract, such that the telescopic rod abuts and applies force to the force applying arm or does not abut and does not apply force to the force applying arm.

4. The power-assisted caster module and control device thereof according to any one of claims 1 to 3, characterized in that, the rotatable member is a motor or a hub motor electrically connected to a power switch and a driving switch.

5. The power-assisted caster module and control device thereof according to any one of claims 1 to 3, wherein, the support further comprises a second rod body disposed between the two side pieces between the roller and the first rod body; the resilient member is at least one torsion spring disposed on the first rod body, one end of which is attached to the object and the other end of which is attached to the second rod body of the support.

6. The power-assisted caster module and control device thereof according to any one of claims 1 to 3, characterized in that, the brake device is a drum brake, the friction portion comprises a drum and a set of brake shoes inside the drum, the linkage portion is a steel cable, and the activation portion is a brake handle or a motor electrically connected to a brake switch.

7. The power-assisted caster module and control device thereof according to any one of claims 1 to 3, wherein, the brake device is a disc brake, the friction portion comprises a disc and a set of brake pads adjacent to the disc, the linkage portion is a steel cable, and the activation portion is a brake handle or a motor electrically connected to a brake switch.

8. The power-assisted caster module and control device thereof according to claim 4, wherein, the brake device further comprises providing an electromagnetic effect to the rotatable member for electromagnetic braking.

9. The power-assisted caster module and control device thereof according to any one of claims 1-3, wherein, the brake device further comprises an instant brake switch for instantaneously driving the linkage portion to select from a group consisting of positioning the friction portion to abut the rotatable member and positioning the friction portion to not abut the rotatable member.

10. The power-assisted caster module and control device thereof according to claim 4, wherein, The brake device further comprises an instant brake switch for instantaneously driving the linkage to select from a group consisting of positioning the friction portion to abut against the rotatable member and positioning the friction portion to not abut against the rotatable member.

11. The power-assisted caster module and control device thereof according to any one of claims 1-3, wherein, The rotatable member further comprises a fast rotation switch and a slow rotation switch electrically connected thereto for selectively fast or slow movement of the object.

12. The power-assisted caster module and control device thereof according to claim 4, wherein, The rotatable member further comprises a fast rotation switch and a slow rotation switch electrically connected thereto for selectively fast or slow movement of the object.

13. The power-assisted caster module and control device thereof according to any one of claims 1-3, wherein, The rotatable member further comprises a reverse switch electrically connected thereto for selectively controlling the direction of rotation of the rotatable member to control the requirement of forward or backward movement of the object.

14. The power-assisted caster module and control device thereof according to claim 4, wherein, The rotatable member further comprises a reverse switch electrically connected thereto for selectively controlling the direction of rotation of the rotatable member to control the requirement of forward or backward movement of the object.

15. A control device characterized by comprising: The rotatable member further comprises a reverse switch electrically connected thereto for selectively controlling the direction of rotation of the rotatable member to control the requirement of forward or backward movement of the object.

16. The control device of claim 15, wherein The rotatable member further comprises a reverse switch electrically connected thereto for selectively controlling the direction of rotation of the rotatable member to control the requirement of forward or backward movement of the object.

17. A control device characterized by comprising: The rotatable member further comprises a reverse switch electrically connected thereto for selectively controlling the direction of rotation of the rotatable member to control the requirement of forward or backward movement of the object.

18. The control device of claim 17, wherein, The rotatable member further comprises a reverse switch electrically connected thereto for selectively controlling the direction of rotation of the rotatable member to control the requirement of forward or backward movement of the object. The rotatable member further comprises a reverse switch electrically connected thereto for selectively controlling the direction of rotation of the rotatable member to control the requirement of forward or backward movement of the object. The rotatable member further comprises a reverse switch electrically connected thereto for selectively controlling the direction of rotation of the rotatable member to control the requirement of forward or backward movement of the object. The rotatable member further comprises a reverse switch electrically connected thereto for selectively controlling the direction of rotation of the rotatable member to control the requirement of forward or backward movement of the object.

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