CN212338754U

CN212338754U - Mobile device lifting device and mobile device

Info

Publication number: CN212338754U
Application number: CN202020602824.7U
Authority: CN
Inventors: 王利峰; 马健; 孙贝
Original assignee: Yake Wisdom Beijing Technology Co ltd
Current assignee: Yake Wisdom Beijing Technology Co ltd
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2021-01-12
Anticipated expiration: 2030-04-21

Abstract

The embodiment of the utility model provides a mechanical equipment technical field is related to, a mobile device elevating gear and mobile device are provided. The mobile equipment lifting device is arranged on a bottom plate of mobile equipment and comprises a driving piece and a first driving piece, wherein the first driving piece comprises a gear rack mechanism and a push rod, and the driving piece and the gear rack mechanism are fixedly arranged on the bottom plate; the rack and pinion mechanism comprises a gear, a first rack and a second rack which are meshed with the gear, the power output end of the driving piece is fixedly connected with the rack and pinion mechanism, one end of the first rack and one end of the second rack are respectively and fixedly connected with a push rod, the end face, far away from the rack and pinion mechanism, of the push rod is pressed against the top end of the supporting leg, and the supporting leg is movably inserted into the bottom plate. The embodiment of the utility model provides a mobile device elevating gear through rack and pinion mechanism and push rod, gives the supporting leg that corresponds with the power synchronous transfer of driving piece, makes the supporting leg move down and prop up the mobile device to provide stable support for the mobile device.

Description

Mobile device lifting device and mobile device

Technical Field

The utility model relates to a mechanical equipment technical field especially relates to a mobile device elevating gear and mobile device.

Background

Generally, a universal wheel is mounted on a base of the movable electromechanical device so as to move and adjust the placement position of the device. But because the inherent characteristic of universal wheel, can not provide stable support to equipment, even use self-locking type universal wheel, under the circumstances of external force effect or equipment self vibrations, the equipment platform truck can also inevitable take place to rock. For electromechanical devices requiring precise operation, slight shaking can also affect the performance of the operation. Accordingly, it is desirable to provide a mechanism that can provide robust support to a mobile device.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a mobile device elevating gear and mobile device for solve the problem that mobile device's universal wheel can't provide firm support for equipment.

In a first aspect, an embodiment of the present invention provides a lifting device for a mobile device, which is installed on a bottom plate of a mobile device, and includes a driving member and a first transmission member, where the first transmission member includes a rack and pinion mechanism and a push rod, and both the driving member and the rack and pinion mechanism are fixedly installed on the bottom plate;

the rack and pinion mechanism include the gear and with gear engagement's first rack and second rack, the power take off end of driving piece with rack and pinion mechanism fixed connection, the one end difference fixedly connected with of first rack and second rack the push rod, the push rod is kept away from rack and pinion mechanism's terminal surface and the top of supporting leg counterbalance are pressed, the supporting leg activity is inserted and is located the bottom plate.

Furthermore, the driving piece is a linear driving mechanism, and a power output end of the linear driving mechanism is fixedly connected with the first rack or the second rack.

Further, the embodiment of the utility model provides a mobile device elevating gear still including install in the second driving medium of bottom plate, the second driving medium with the structure of first driving medium is the same and the transmission direction is the same, first driving medium with the second driving medium corresponds first rack or the second rack passes through first connecting rod fixed connection, sharp actuating mechanism's power take off end with first connecting rod is connected.

Further, the linear driving mechanism comprises a driving rod and a second connecting rod, the driving rod is rotatably connected with the bottom plate, one end of the driving rod is hinged to one end of the second connecting rod, and the other end of the second connecting rod is rotatably connected with the first connecting rod.

Furthermore, the end face of the push rod is a wedge-shaped face, and the wedge-shaped face is pressed against the top end of the supporting leg.

Furthermore, the upper end and the lower end of the wedge-shaped surface are both provided with limiting planes.

Furthermore, the top of supporting leg is equipped with bearing support, be connected with ball bearing on the bearing support, the wedge with ball bearing supports mutually and presses.

Furthermore, a through hole is formed in the bottom plate corresponding to a wheel shaft of a universal wheel of the mobile device, the wheel shaft is a hollow shaft, and the supporting legs are movably inserted in the through hole and the wheel shaft.

Furthermore, the through hole can accommodate a bearing support at the top end of the supporting leg, and a compression spring is arranged between the lower end face of the bearing support and the upper end face of the wheel shaft.

In a second aspect, an embodiment of the present invention provides a mobile device, including the above first aspect.

The embodiment of the utility model provides a mobile device elevating gear through set up rack and pinion mechanism and push rod on the mobile device bottom plate, inserts the supporting leg of locating the mobile device bottom plate for corresponding activity with the power synchronous transfer of driving piece, makes the supporting leg move down and prop up the mobile device to provide stable support for the mobile device.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front view of a lifting device of a mobile device according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a lifting device of a mobile device according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a driving rod according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a push rod according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of a support leg according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a wheel axle according to an embodiment of the present invention.

In the figure: 1. a base plate; 11. a through hole; 2. a push rod; 21. a wedge-shaped surface; 22. a lower limiting plane; 23. an upper limiting plane; 24. a push rod slide carriage; 31. a gear; 32. a first rack; 33. a second rack; 311. a gear support; 4. supporting legs; 41. a bearing support; 5. a first link; 60. a drive rod; 61. a second link; 7. a wheel axle; 71. a cylindrical bore.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "first" and "second" are used for clearly indicating the numbering of the product parts and do not represent any substantial difference unless explicitly stated or limited otherwise. The directions of "up", "down", "left" and "right" are all based on the directions shown in the attached drawings. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Fig. 1 is a front view of a lifting device for a mobile device according to an embodiment of the present invention. The mobile equipment lifting device is arranged on a bottom plate 1 of mobile equipment and comprises a driving piece and a first transmission piece, wherein the first transmission piece comprises a gear rack mechanism and a push rod 2, and the driving piece and the gear rack mechanism are fixedly arranged on the bottom plate 1. The gear rack mechanism comprises a gear 31, a first rack 32 and a second rack 33 which are meshed with the gear 31, and the power output end of the driving piece is fixedly connected with the gear rack mechanism. One end of the first rack 32 and one end of the second rack 33 are respectively and fixedly connected with a push rod 2, the end face, far away from the gear and rack mechanism, of the push rod 2 is pressed against the top end of the supporting leg 4, and the supporting leg 4 is movably inserted into the bottom plate 1. The gear 31 is mounted on the gear support 311 by a pin, and the gear support 311 is fixed on the bottom plate 1.

Specifically, when the equipment needs to be lifted, the driving part transmits power to the gear 31 rack structure, so that the first rack 32 and the second rack 33 respectively move towards the corresponding supporting legs 4, the end faces of the push rod 2 connected with the first rack 32 and the push rod 2 connected with the second rack 33 simultaneously push the corresponding supporting legs 4, the supporting legs 4 are forced to move downwards relative to the bottom plate 1 until the trolley of the mobile equipment is supported, the universal wheel of the mobile equipment is separated from the ground, and the mobile equipment is supported by the supporting legs 4; when the equipment needs to be moved, the driving piece is driven reversely, the push rod 2 connected with the first rack 32 and the push rod 2 connected with the second rack 33 are retracted to gradually release the pressure on the supporting leg 4, at the moment, under the action of the gravity of the equipment trolley, the supporting leg 4 moves upwards relative to the bottom plate 1, and the universal wheel of the mobile equipment falls back to the ground. Wherein, can realize the lift of the different heights of mobile device through the design of supporting leg 4 lift stroke.

The embodiment of the utility model provides a mobile device elevating gear through set up rack and pinion mechanism and push rod 2 on mobile device bottom plate 1, inserts the supporting leg 4 of locating mobile device bottom plate 1 with the power synchronous transfer of driving piece for corresponding activity, makes supporting leg 4 remove downwards and prop up the mobile device platform truck to provide stable support for the mobile device.

It should be noted that the lifting device for mobile equipment provided by the embodiment of the present invention can be installed on the bottom plate 1 of the mobile equipment singly or in multiple. When the universal wheel supporting device is installed singly, the universal wheel supporting device can be installed on the symmetrical center line or the diagonal line of the bottom plate 1 of the mobile device, and also can be installed on one side opposite to the universal wheel, and the supporting legs are utilized to assist the universal wheel supporting device; when a plurality of lifting devices are installed, the lifting devices can be reasonably arranged according to the area size and the shape of the bottom plate 1 so as to provide stable support for equipment, for example, two lifting devices are installed at the same time, and the lifting devices can be installed on two opposite sides of the bottom plate 1.

The driving member may be a rotary driving mechanism or a linear driving mechanism.

When the driving member is a linear driving mechanism, the power output end of the linear driving mechanism is fixedly connected with the first rack 32 or the second rack 33. For example, the power output end of the linear driving mechanism is fixedly connected with the end of the first rack 32, and when the linear driving mechanism drives the first rack 32 to move towards the corresponding support leg 4, the gear 31 is rotated through the engagement of the gear and the rack, and then the second rack 33 is driven to move towards the direction opposite to the first rack 32, so as to drive the push rod 2 connected with the first rack 32 and the end face of the push rod 2 connected with the second rack 33 to simultaneously push the corresponding support leg 4 to move downwards. When the support leg 4 is required to be moved upward, the driving direction of the linear driving mechanism is switched. The linear driving mechanism can be any one of an electric push rod, a telescopic hydraulic cylinder and a linear motion cylinder, or other mechanical linear driving pieces.

When the driving part is a rotary driving mechanism such as a rotary motor, a power output shaft of the rotary motor is fixedly connected with the center of the gear 31, and when the rotary motor works, the gear 31 is driven to rotate, so that the first rack 32 and the second rack 33 move in opposite directions, and the end surfaces of the push rod 2 connected with the first rack 32 and the push rod 2 connected with the second rack 33 simultaneously push the corresponding supporting legs 4 to move downwards.

As shown in fig. 2, the embodiment of the present invention is a schematic structural diagram of a lifting device for mobile equipment, the embodiment of the present invention provides a lifting device for mobile equipment, which further includes a second transmission member installed on the bottom plate 1, the second transmission member is the same as the first transmission member in structure and has the same transmission direction. The first rack 32 or the second rack 33 corresponding to the first transmission piece and the second transmission piece are fixedly connected through the first connecting rod 5, and the power output end of the linear driving mechanism is connected with the first connecting rod 5.

In the embodiment of the present invention, the first transmission member and the second transmission member are respectively symmetrically installed on two opposite sides of the bottom plate 1 of the mobile device, as shown in fig. 2, two ends of the first connecting rod 5 are respectively connected to the first rack 32 of the first transmission member and the end of the first rack 32 of the second transmission member. When the linear driving mechanism drives the first connecting rod 5 to move, the first connecting rod 5 simultaneously drives the first rack 32 of the first transmission piece and the first rack 32 of the second transmission piece to move, power is transmitted to the push rod 2 of the first transmission piece and the push rod 2 of the second transmission piece, the four push rods 2 move towards the outer side of the bottom plate 1, the corresponding supporting legs 4 are pushed to move downwards, and the mobile equipment trolley is supported. The whole device now provides a stable and reliable support by means of four support legs 4.

In the embodiment of the utility model, the power output end of the linear driving mechanism can be fixedly connected with the first connecting rod 5; the linear driving mechanism can also be rotatably connected with the first connecting rod 5, for example, the power output end of the linear driving mechanism is sleeved on the first connecting rod 5, and the power output direction of the linear driving mechanism is parallel to the transmission direction of the gear rack mechanism; the power output end of the linear driving mechanism can also be connected with the first connecting rod 5 in a spherical hinge mode, so that the device can be conveniently installed and adjusted, the phenomenon that the mechanism is clamped in the moving process is avoided, and the machining and assembling precision requirement is lowered.

In the embodiment of the present invention, the linear driving mechanism includes the driving rod 60 and the second connecting rod 61, as shown in fig. 3, the embodiment of the present invention provides a schematic structural diagram of the driving rod, the driving rod 60 is connected with the bottom plate 1, one end of the driving rod 60 is hinged to one end of the second connecting rod 61, and the other end of the second connecting rod 61 is connected with the first connecting rod 5.

Specifically, the driving rod 60 is rotatably connected with the bottom plate 1 through a bracket, the bracket is fixed on the lower surface of the bottom plate 1, and the driving rod 60 is rotatably connected with the bracket through a pin shaft. A strip-shaped groove is formed in the bottom plate 1, the second connecting rod 61 penetrates through the strip-shaped groove, one end of the second connecting rod is hinged to the driving rod below the bottom plate 1, and the other end of the second connecting rod is rotatably connected with the first connecting rod 5 above the bottom plate 1. The other end of the second connecting rod 61 can be sleeved on the first connecting rod 5, and can also be connected with the first connecting rod 5 through a spherical hinge.

When a downward force is applied to the other end of the driving rod 60, the driving rod 60 drives the first connecting rod 5 to move through the second connecting rod 61, so that the first transmission piece and the second transmission piece are simultaneously driven to move, and the supporting leg 4 moves downwards; when an upward force is applied to the other end of the driving lever 60, the push rod 2 is retracted, thereby releasing the support leg 4 and moving the support leg 4 upward. Preferably, the connection point of the driving rod 60 to the bracket is near the end of the driving rod 60 connected to the second link 61. The driving lever 60 may be a foot lever, and the support leg is moved downward by pressing one end of the foot lever with a foot to prop up the equipment cart; one end of the foot lever is lifted by the instep, so that the push rod releases the supporting leg 4, and the universal wheel falls back to the ground.

The mobile equipment lifting device provided by the embodiment of the utility model has simple structure, avoids the need of installing additional electrical and control equipment by adopting an electric type lifting device, and increases the electrical complexity and wiring difficulty of the equipment; and a series of problems that hydraulic equipment is high in price, large in volume and weight, and a hydraulic pipeline needs to be maintained regularly can be avoided.

Fig. 4 is a schematic structural diagram of the push rod 2 according to the embodiment of the present invention. The embodiment of the utility model provides an in, the one end of push rod 2 is shaft-like structure, and is fixed with the one end of first rack 32 or second rack 33, and the terminal surface of the other end is wedge face 21, and wedge face 21 offsets with the top of supporting leg 4 and presses, gives supporting leg 4 with the power transmission of push rod 2. The length of the wedge-shaped surface 21 is determined by the lifting stroke of the supporting leg 4, namely, the wedge-shaped surface 21 is ensured to have enough length so that the top end of the supporting leg 4 moves on the wedge-shaped surface 21 in the lifting process of the mobile equipment, and the normal lifting of the equipment is ensured.

Further, in order to realize self-locking of the mobile equipment lifting device, the upper end and the lower end of the wedge-shaped surface 21 are both provided with a limiting plane. When the push rod 2 pushes the supporting leg 4 to move downwards relative to the bottom plate 1 until the top end of the supporting leg 4 reaches the lower limiting plane 22 of the wedge-shaped surface 21, the supporting leg 4 cannot move downwards continuously, the moving device cannot ascend continuously, at the moment, the driving of the first transmission piece and the second transmission piece is stopped, and the supporting leg 4 is locked at the position. When the pressure of the push rod 2 on the supporting leg 4 is released, the supporting leg 4 moves upwards relative to the base plate 1, and the upper limit plane 23 of the wedge-shaped surface 21 can ensure that the supporting leg 4 does not exceed a set stroke when being folded upwards and prevent the supporting leg 4 from being separated upwards.

As shown in fig. 5, the embodiment of the present invention is a schematic structural diagram of the supporting leg 4, in the embodiment of the present invention, the top end of the supporting leg 4 is equipped with the bearing support 41, the bearing support 41 is connected with the ball bearing, and the wedge surface 21 is supported with the ball bearing. Wherein the ball bearing may be mounted to the bearing support 41 by a pin. The ball bearings may reduce friction when the support leg 4 and the wedge 21 are in contact.

Further, the embodiment of the utility model provides a mobile device elevating gear still includes push rod slide 24, and push rod slide 24 is fixed on bottom plate 1, and push rod slide 24 is worn to locate by push rod 2, and push rod 2 can be linear movement in push rod slide 24. When the length of the push rod 2 is longer, the deformation of the push rod 2 when pushing the supporting leg 4 can be reduced, and the top end of the supporting leg 4 is separated from the wedge-shaped surface 21. To reduce friction between the push rod slide 24 and the push rod 2, a plastic sliding film sliding bearing may be installed between the push rod slide 24 and the push rod 2.

For further guarantee the reliable contact on

wedge

21 and 4 tops of supporting leg, the embodiment of the utility model provides a be equipped with the recess on wedge 21, when push rod 2 promoted supporting leg 4, ball bearing rolled in the recess, prevented that ball bearing from taking place to sideslip on wedge 21.

As shown in fig. 2, in the embodiment of the present invention, a through hole 11 is formed at the axle 7 of the universal wheel of the mobile device on the bottom plate 1, the axle 7 is a hollow shaft, and the supporting leg 4 is movably inserted into the through hole 11 and the axle 7. The support legs 4 are moved up and down in the through holes 11 and the axles 7. As shown in fig. 6, which is a schematic structural view of the wheel axle 7 according to the embodiment of the present invention, a hollow cylindrical hole 71 is disposed inside the wheel axle 7 for the support leg 4 to pass through, and the support leg 4 can slide up and down inside the wheel axle 7.

In the embodiment of the present invention, the through hole 11 can accommodate the bearing support 41, and the upper plane of the wheel shaft 7 is fixedly connected to the bottom of the device bottom plate 1 corresponding to the position of the through hole 11. A compression spring is arranged between the lower end surface of the bearing support 41 and the upper end surface of the wheel shaft 7. Specifically, a compression spring is fixed to an upper end surface of the wheel shaft 7 for providing an upward restoring force to the supporting leg 4 when the push rod 2 releases the supporting leg 4. If the through hole 11 cannot receive the bearing holder 41 of the support leg 4, the compression spring may be fixed to the upper plane of the base plate 1 contacting the bearing holder 41.

The universal wheel of the mobile equipment is sleeved on the wheel shaft 7 and used for supporting and moving the equipment, and a ball bearing is arranged between the wheel shaft 7 and the universal wheel. The embodiment of the utility model provides an in, two ball bearing about installing between every universal wheel and the shaft 7, two shoulders about being provided with on the corresponding shaft 7 to prevent bearing axial float, adopt the ball bearing that the axle used circlip prevents the below to fall in lower end bearing department.

The embodiment of the utility model provides a still provide a mobile device, including above-mentioned embodiment mobile device elevating gear. When the mobile equipment needs to be stably supported, the trolley of the mobile equipment is supported by the lifting device of the mobile equipment, the universal wheels are separated from the ground, and the support legs 4 are used for providing stable support for the mobile equipment.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A lifting device for mobile equipment is arranged on a bottom plate of the mobile equipment and is characterized by comprising a driving piece and a first transmission piece, wherein the first transmission piece comprises a gear rack mechanism and a push rod, and the driving piece and the gear rack mechanism are fixedly arranged on the bottom plate;

2. The mobile device lifting device according to claim 1, wherein the driving member is a linear driving mechanism, and a power output end of the linear driving mechanism is fixedly connected to the first rack or the second rack.

3. The mobile device lifting device according to claim 2, further comprising a second transmission member mounted on the bottom plate, wherein the second transmission member has the same structure and the same transmission direction as the first transmission member, the first rack or the second rack corresponding to the first transmission member and the second transmission member is fixedly connected through a first link, and a power output end of the linear driving mechanism is connected to the first link.

4. The mobile device lifting device according to claim 3, wherein the linear driving mechanism comprises a driving rod and a second connecting rod, the driving rod is rotatably connected with the bottom plate, one end of the driving rod is hinged with one end of the second connecting rod, and the other end of the second connecting rod is rotatably connected with the first connecting rod.

5. The mobile equipment lifting device according to claim 1, wherein the end surface of the push rod is a wedge-shaped surface, and the wedge-shaped surface is pressed against the top end of the support leg.

6. The mobile device lifting device according to claim 5, wherein the upper end and the lower end of the wedge-shaped surface are both provided with a limiting plane.

7. The mobile equipment lifting device according to claim 5, wherein a bearing support is arranged at the top end of the supporting leg, a ball bearing is connected to the bearing support, and the wedge-shaped surface is pressed against the ball bearing.

8. The lifting device for mobile equipment according to any one of claims 1 to 7, wherein a through hole is formed in the bottom plate corresponding to a wheel shaft of a universal wheel of the mobile equipment, the wheel shaft is a hollow shaft, and the support leg is movably inserted into the through hole and the wheel shaft.

9. The mobile device lifting device according to claim 8, wherein the through hole is configured to receive a bearing seat of a top end of the support leg, and a compression spring is disposed between a lower end surface of the bearing seat and an upper end surface of the axle.

10. A mobile device comprising a mobile device lifting apparatus as claimed in any one of claims 1 to 9.