CN213231399U

CN213231399U - Movable barrier-free electric lifting platform

Info

Publication number: CN213231399U
Application number: CN202021622249.3U
Authority: CN
Inventors: 胡冠巨
Original assignee: Ningbo Nali Lifting Machinery Co ltd
Current assignee: Ningbo Nali Lifting Machinery Co ltd
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2021-05-18
Anticipated expiration: 2030-08-06

Abstract

The utility model provides a portable accessible electric lift platform, includes the base and removes the wheel subassembly, base bottom fixedly connected with electric leg and storage device, electric leg includes second motor, lead screw and supporting leg, lead screw fixed connection is in on the base, the pivot fixed connection of second motor the supporting leg works as the second motor during operation drives the supporting leg rotates, so that the supporting leg stretches out or keeps away from ground withdrawal to the ground direction, storage device includes first motor and first storage tank, first storage tank includes the joint structure, first motor drives remove the wheel subassembly and get into first storage tank, the joint structure will it fixes in first storage tank to remove the wheel subassembly. The utility model discloses an electronic landing leg and storage device have reduced effectively remove the wheel subassembly with the pivot loss of first motor has reached extension parts life's effect.

Description

Movable barrier-free electric lifting platform

Technical Field

The utility model belongs to the technical field of electric lift platform technique and specifically relates to a portable accessible electric lift platform.

Background

In some occasions lacking ramps and accessible elevators, when transporting heavy objects, the heavy objects often need to be carried many times by manpower, which is time-consuming and labor-consuming. The movable barrier-free electric lifting platform can convey heavy objects to a certain height from the flat ground, so that the lifting effect is realized, the loading and unloading are convenient, and the movable wheels are installed to realize the moving effect of the electric lifting platform and goods. When the device lifts up the heavy object, the wheel of bottom and ground need keep relative static, and the area of contact on wheel and ground is little, and is not stable enough, and when not loading and unloading in the material short time on the lift platform, the wheel of bottom need bear pressure for a long time and lead to the deformation wearing and tearing serious, if the lift platform who is equipped with the heavy object receives side thrust, ground has ponding to produce the potential safety hazard in addition.

In order to reduce the pressure and wear of the wheels when the movable barrier-free electric lifting platform is not moved, and to reduce the stress time and loss of precision parts, a device for achieving the purpose is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a semi-automatization accomodates wheel and extension part life's portable accessible electric lift platform.

The utility model provides a its technical problem take following technical scheme to realize:

a movable barrier-free electric lifting platform comprises a base and a movable wheel, wherein an electric supporting leg and a containing device are fixedly connected to the bottom of the base, the electric supporting leg comprises a second motor, a lead screw and a supporting leg, the lead screw is fixedly connected to the base, a rotating shaft of the second motor is fixedly connected with the supporting leg, when the second motor works, the supporting leg is driven to rotate so as to extend towards the ground or retract away from the ground, the maximum extending stroke of the supporting leg is larger than the length of the movable wheel, the containing device comprises a first motor and a containing groove, the containing groove is formed in the base, the containing groove comprises a clamping structure, the first motor is fixedly connected to the base, the movable wheel is fixedly installed on the rotating shaft of the first motor, and the first motor works to drive the movable wheel to rotate into the containing groove, when the movable wheel enters the accommodating groove, the clamping structure blocks the movable wheel from leaving the accommodating groove.

Preferably, the base inside seted up the second storage tank, the supporting leg can withdraw completely when retracting in the second storage tank, lead screw fixed mounting on the inner wall of second storage tank, the inside cavity of lead screw, the inside screw thread of lead screw with the outside screw thread matching of supporting leg, the supporting leg tip is provided with the boss.

Preferably, the bottom of the boss is fixedly connected with a cushion.

Preferably, the moving wheel assembly comprises a moving wheel and a support, one end of the support is fixedly connected with the first motor rotor through a one-way bearing, and the other end of the support is fixedly connected with the moving wheel.

Preferably, the moving wheels are provided as universal wheels.

Preferably, the support includes hollow cylinder and connecting rod, hollow cylinder use the pivot of first motor is the centre of a circle and fixed cover is established the one-way bearing outside, hollow cylinder fixed connection the connecting rod.

Preferably, the second accommodating groove is fixedly connected with a lead screw, the lead screw comprises a slide rail, the slide rail is fixedly connected to the bottom of the second accommodating groove, the other end of the slide rail is fixedly connected with the lead screw, and the slide rail is connected with the second motor in a sliding manner.

Preferably, a limiting block is arranged on the sliding rail, and when the second motor moves downwards, the limiting block prevents the base of the second motor from moving to the position below the limiting block.

Preferably, first holding tank bottom fixedly connected with joint structure, the joint structure includes joint head, kelly and spring, the one end fixed connection that first storage tank was kept away from to the joint head the kelly, kelly other end fixed connection the spring, spring other end fixed connection is in the storage device inner wall, works as it gets into to remove the wheel subassembly during the first storage tank, the joint head is in stretch out under the spring force effect first storage tank, in order to hinder it leaves to remove the wheel subassembly first storage tank.

Preferably, the joint structure still include pivot and push rod, the axle center of pivot is rotated and is connected in the storage device, pivot one end is articulated the kelly, the pivot other end is articulated the push rod, partly stretch out of push rod the base, work as the push rod to when the base moves, through the pivot drives the joint is retracted.

The utility model has the advantages that:

1. the utility model provides a pair of whole device is propped up downwards to electronic landing leg when having the heavy object on lift platform, with the stress point from removing on the wheel subassembly shifts the supporting leg, thereby reduce and remove the time that the wheel subassembly bore pressure and reduce its loss, and reduced the lift platform who bears the weight of the heavy object and have ponding and receive the possibility that the incident takes place when striking on ground.

2. The utility model provides a pair of accomodate structure realizes accomodating the effect after removing the unsettled back of wheel subassembly, and first motor drives and removes wheel subassembly upper spin and bear by the joint structure and remove wheel subassembly gravity, can reduce the last atress time of first motor output shaft, reduces the loss, and extension part life-span, and the joint head of joint structure returns and releases and removes the wheel subassembly, removes the free fall of wheel subassembly and has reduced the electric energy loss.

Drawings

FIG. 1 is a side view of the integral shaft of the present invention;

fig. 2 is an overall front view of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;

FIG. 5 is an enlarged view of a portion of FIG. 4;

in the figure: 1. a base; 2. a first motor; 3. a first accommodating groove; 4. a storage device; 5. a moving wheel assembly; 6. a second motor; 7. a lead screw; 8. supporting legs; 9. a soft cushion; 10. an electric leg; 11. a one-way bearing; 12. a clamping structure; 13. a second accommodating groove; 14. a moving wheel; 15. a support; 16. a hollow cylinder; 17. a connecting rod; 18. a slide rail; 19. a clamping head; 20. a spring; 21. a push rod; 22. a rotating shaft; 23. a clamping rod; 24. a boss; 25. and a limiting block.

Detailed Description

The embodiments of the present invention will be described in detail with reference to the accompanying drawings:

fig. 1 a portable accessible electric lift platform, fig. 1 is that whole axle side view has shown the relative position of each part on the base 1, including base 1 and removal wheel subassembly 5, base 1 has been seted up first storage tank 3 and has been used for holding removal wheel subassembly 5, second storage tank 13 that base 1 was seted up is used for holding electric leg support 10, second storage tank 13 bottom fixedly connected with electric leg support 10, temporarily do not demonstrate in 3 part figure 1 that electric leg support 10 includes, press control button when the staff reachs the assigned position, let electric leg support 10 stretch out second storage tank 13 in the base 1 and prop up whole lift platform and the goods on it and make removal wheel subassembly 5 unsettled, the realization is with the function that the stress point shifted to on electric leg support 10 by removing wheel subassembly 5.

As shown in fig. 3, fig. 3 is a cross-sectional view of the general a-a line position in fig. 2, the structures of the electric supporting legs 10 and the movable wheel assembly 5 can be clearly shown, a second accommodating groove 13 is formed in the base 1, the screw 7 contained in the electric supporting legs 10, the supporting legs 8, the second motor 6 are located in the second accommodating groove 13, the supporting legs 8 can be completely retracted into the second accommodating groove 13 when retracting, the screw 7 is fixedly installed on the inner wall of the second accommodating groove 13, the screw 7 is hollow inside, the internal threads of the screw 7 are matched with the external threads on the upper portion of the supporting legs 8, the rotary motion of the rotating shaft of the second motor 6 is converted into the vertical linear motion of the screw 7, and the screw 7 is fixedly connected. The slide rail 18 is fixedly connected to the top of the second accommodating groove 13, the slide rail 18 is located above the lead screw 7, and the slide rail 18 is slidably connected with the second motor 6, so that the second motor 6 can keep stable when sliding up and down along the slide rail 18. 7 bottom fixedly connected with supporting legs 8 of lead screw, 8 end of supporting leg is provided with boss 24, and the cross-sectional area of boss 24 is greater than supporting leg 8's cross-sectional area, and 24 cross-sectional areas of boss make the lifting surface area increase of electronic landing leg 10 and ground contact greatly, make the pressure of electronic landing leg 10 and ground contact surface reduce to more stable safe function when realizing that electronic landing leg 10 supports whole lift platform and goods. The bottom of the boss 24 is provided with a cushion 9 which is made of anti-skid and wear-resistant materials, so that the anti-skid, mute and wear-resistant effects of the electric support leg 10 when the whole lifting platform and goods are supported are achieved.

As shown in fig. 3, a limiting block 20 is arranged on the slide rail 18, the limiting block 20 is arranged above the screw rod 7, when the second motor 6 moves downwards to the limit position, the base of the second motor 6 contacts with the limiting block 20, and when the second motor 6 moves downwards, the limiting block 25 blocks the base of the second motor 6 from moving below the limiting block 25, so that when the screw rod 7 and the support leg 8 are in transmission failure, the second motor 6 is prevented from passing through the screw rod 7 and falling to the ground.

As shown in fig. 3, the movable wheel assembly 5 is in a storage state, the first receiving groove 3 and the first motor 2 form a storage device 4, and the storage device 4 stores the movable wheel assembly 5 into the inner space of the base 1 through the rotation of the first motor 2 and the space of the first receiving groove 3. The specific use scenarios are: when the electric supporting legs 10 support the whole device, the moving wheel assembly 5 is suspended and is not stressed, a worker operates and starts the first motor 2, the output shaft of the first motor 2 drives the moving wheel assembly 5, the moving wheel assembly 5 is divided into two parts, namely a moving wheel 14 and a support 15, the moving wheel 14 is arranged as a universal wheel, and the effect that the lifting platform and goods can move in multiple directions when moving is achieved. Support 15 one end is through the rotor of one-way bearing 11 fixed connection first motor 2, as shown in fig. 3, first motor 2 rotor can only drive one-way bearing 11 anticlockwise rotation, first motor 2 can only drive removal wheel subassembly 5 and get into first storage tank 3, and when staff operated latch device 12 release removal wheel 14, because one-way bearing 11 clockwise turning does not mesh the rotor of first motor 2, so one-way bearing 11 clockwise turning is not influenced by first motor 2, this whereabouts process is the free fall motion, removal wheel subassembly 5 whereabouts does not have practiced thrift the electric energy with the help of the effect of first motor 2, realized the atress time that reduces first motor 2 rotor, reduced the part loss, the effect of saving the electric energy.

As shown in fig. 3, the first motor 2 rotates to enable the movable wheel 14 to enter the first accommodating groove 3 and to be fixed inside the first accommodating groove 3 by the clamping structure 12, when the movable wheel assembly 5 enters the first accommodating groove 3, the clamping structure 12 prevents the movable wheel assembly 5 from leaving the first accommodating groove 3, the clamping structure 12 bears the gravity of the movable wheel assembly 5, the clamping structure 12 is fixedly connected to the bottom of the first accommodating groove 3, and the clamping structure 12 can clamp the accommodated movable wheel assembly 5 in the first accommodating groove 3.

Referring to fig. 4, 5, 4 is a cross-sectional view taken along line B-B in fig. 3, fig. 5 is a partially enlarged view of a in fig. 4, fig. 4 shows a relative position relationship between the latch structure 12 and the base 1 and the movable wheel 14, fig. 5 mainly shows an operation principle of the latch structure 12, the latch structure 12 includes a latch 19, a latch rod 23 and a spring 20, the latch 19 extends out of the first receiving groove 3, the latch 19 holds the movable wheel 14 when the first receiving groove 3 is located in a right area in fig. 5, as shown in fig. 5, one end of the latch 19 away from the first receiving groove 3 is fixedly connected to the latch rod 23, the other end of the latch rod 23 is fixedly connected to the spring 20, and the other end of the spring 20 is fixedly connected to an inner wall of the receiving device 4, so that one end of the spring 20 connected to the latch rod 23 deforms with the movement of the latch rod 23, when the movable wheel 14 enters the first receiving groove 3 as the movable wheel assembly 5 enters the first receiving groove 3, the spring 20 connected with the clamping rod 23 is compressed inwards to make the clamping joint 19 enter the first accommodating groove 3, the moving wheel 14 can smoothly enter the first accommodating groove 3 through the clamping structure 12, as shown in fig. 3 and 5, when the moving wheel 14 rotates above the clamping joint 14 along with the bracket 15, the clamping joint 19 extends out of the first accommodating groove 3 under the elastic force of the spring 20 to prevent the moving wheel 14 from leaving the first accommodating groove 3, so that the moving wheel assembly 5 is clamped by the clamping structure 12 when entering the first accommodating groove 3, the bracket 15 comprises a hollow cylinder 16 and a connecting rod 17, the hollow cylinder 16 takes the rotating shaft of the first motor 2 as the center and is fixedly sleeved outside the one-way bearing 11, the one-way bearing 11 is tightly connected with the hollow cylinder 16, the hollow cylinder 16 is fixedly connected with the connecting rod 17, the hollow cylinder 16 is sleeved with the one-way bearing 11 to increase the stress area, so as to achieve more stable rotation, The stress is more uniform.

As shown in fig. 5, the clamping structure 12 further includes a rotating shaft 22 and a push rod 21, the axis of the rotating shaft 22 is rotatably connected in the receiving device 4, one end of the rotating shaft 22 is hinged to the clamping rod 23, the other end of the rotating shaft 22 is hinged to the push rod 21, a part of the push rod 21 extends out of the base 1, when the push rod 21 moves towards the base 1, the clamping joint 19 is driven to retract through the rotating shaft 22, the effect that the worker pushes the push rod 21 towards the base 1 to release the moving wheel assembly 5 is achieved, the moving wheel assembly 5 returns to the vertical plane in a mechanical manner, and the effect of saving electric energy is. The clamping structure 12 supports and releases the movable wheel 14 to reduce the stress time of the rotating shaft of the first motor 2, and the service life of the first motor is prolonged.

When the device is implemented, the electric supporting legs 10 and the containing devices 4 are adopted, when a worker transports the movable barrier-free electric lifting platform and goods to a preset position, the worker operates the button, puts down the electric supporting legs 10 to support the whole device, the moving wheel assembly 5 is not stressed at the moment, the worker starts the containing devices 4 to pack up the moving wheel assembly 5, the moving wheel assembly 5 enters the first accommodating groove 3 through the rotation of the first motor 2, the clamping structure 12 is utilized to realize the function of fixedly containing the moving wheel assembly 5, the electric lifting platform and the goods are stably placed at a storage point at the moment, when the worker wants to transfer the electric lifting platform and the goods, the push rod 21 is pushed to enable the clamping head 19 in the clamping structure 12 to retract, the moving wheel assembly 5 falls due to gravity, the worker starts the second motor 6 to withdraw the supporting legs 8 after the moving wheel assembly 5 returns to be vertical, make the stress point shift back to on moving wheel subassembly 5, the staff can push away lift platform and goods this moment, realizes settling state and moving state switching process, reduces the function that moves wheel subassembly 5 and the 2 rotors of first motor atress time, reaches energy-conservation, reduces the effect of loss.

It should be emphasized that the embodiments described herein are illustrative and not restrictive, and thus the present invention is not limited to the embodiments described in the detailed description, but also falls within the scope of the present invention, in any other embodiments derived by those skilled in the art according to the technical solutions of the present invention.

Claims

1. The utility model provides a portable accessible electric lift platform, includes base (1) and removal wheel subassembly (5), its characterized in that: the base is characterized in that an electric supporting leg (10) and a containing device (4) are fixedly connected to the bottom of the base (1), the electric supporting leg (10) comprises a second motor (6), a lead screw (7) and a supporting leg (8), the lead screw (7) is fixedly connected to the base (1), a rotating shaft of the second motor (6) is fixedly connected to the supporting leg (8), when the second motor (6) works, the supporting leg (8) is driven to rotate so that the supporting leg (8) extends out towards the ground direction or retracts away from the ground, the maximum extending stroke of the supporting leg (8) is larger than the length of the movable wheel assembly (5), the containing device (4) comprises a first motor (2) and a first containing groove (3), the first containing groove (3) is formed in the base (1), the first containing groove (3) comprises a clamping structure (12), the first motor (2) is fixedly connected to the base (1), remove the wheel subassembly (5) fixed mounting in the pivot of first motor (2), first motor (2) during operation drives remove wheel subassembly (5) and rotate and get into first storage tank (3), work as remove wheel subassembly (5) and get into when first storage tank (3), joint structure (12) obstruct remove wheel subassembly (5) leave first storage tank (3).

2. A mobile barrier-free motorized lift platform as recited in claim 1, wherein: base (1) inside second storage tank (13) of having seted up, can withdraw completely when supporting leg (8) retract in the second storage tank (13), lead screw (7) fixed mounting on the inner wall of second storage tank (13), the inside cavity of lead screw (7), the inside screw thread of lead screw (7) with the outside screw thread matching of supporting leg (8), supporting leg (8) end is provided with boss (24).

3. A mobile barrier-free motorized lift platform as recited in claim 2, wherein: the bottom of the boss (24) is fixedly connected with a soft pad (9).

4. A mobile barrier-free motorized lift platform as recited in claim 1, wherein: the moving wheel assembly (5) comprises a moving wheel (14) and a support (15), one end of the support (15) is fixedly connected with the rotor of the first motor (2) through a one-way bearing (11), and the other end of the support (15) is fixedly connected with the moving wheel (14).

5. A mobile barrier-free motorized lift platform as recited in claim 4, wherein: the moving wheels (14) are universal wheels.

6. A mobile barrier-free motorized lift platform as recited in claim 4, wherein: support (15) include hollow cylinder (16) and connecting rod (17), hollow cylinder (16) use the pivot of first motor (2) is the centre of a circle and fixed cover is established the one-way bearing (11) outside, hollow cylinder (16) fixed connection connecting rod (17).

7. A mobile barrier-free motorized lift platform as recited in claim 2, wherein: the second accommodating groove (13) is fixedly connected with a lead screw (7), the lead screw (7) comprises a slide rail (18), the slide rail (18) is fixedly connected to the bottom of the second accommodating groove (13), the other end of the slide rail (18) is fixedly connected with the lead screw (7), and the slide rail (18) is connected with the second motor (6) in a sliding manner.

8. A mobile barrier-free motorized lift platform as recited in claim 7, wherein: be provided with stopper (25) on slide rail (18), when second motor (6) downstream, stopper (25) hinder the base of second motor (6) removes to stopper (25) below.

9. A mobile barrier-free motorized lift platform as recited in claim 1, wherein: first storage tank (3) bottom fixedly connected with joint structure (12), joint structure (12) are including joint head (19), kelly (23) and spring (20), the one end fixed connection of first storage tank (3) is kept away from in joint head (19) kelly (23), kelly (23) other end fixed connection spring (20), spring (20) other end fixed connection is in storage device (4) inner wall works as remove wheel subassembly (5) and get into during first storage tank (3), joint head (19) stretch out under spring (20) spring action first storage tank (3), in order to hinder remove wheel subassembly (5) leave first storage tank (3).

10. A mobile barrier-free motorized lift platform as recited in claim 9, wherein: joint structure (12) still include pivot (22) and push rod (21), the axle center of pivot (22) is rotated and is connected in storage device (4), pivot (22) one end is articulated kelly (23), pivot (22) other end is articulated push rod (21), partly of push rod (21) stretches out base (1), works as push rod (21) to during base (1) motion, through pivot (22) drive joint (19) retract.