CN110721038A - shifter - Google Patents

Abstract

The invention discloses a shifter, comprising: a base frame, a seat frame assembly arranged above the base frame, and a screw lifting mechanism arranged between the base frame and the seat frame assembly, and the screw lifting mechanism The distance between the base frame and the seat frame assembly can be adjusted. The screw lifting mechanism adopts the principle of thread lifting to carry out the lifting action. The height of the seat frame assembly can also be adjusted when people are loaded. The adjustment is convenient and can realize stepless adjustment. , can be adjusted to any height within the height adjustment range, has strong applicability, is more convenient to use, and has better use effect.

Description

shifter

technical field

The invention relates to the field of medical equipment, in particular to a shifter.

Background technique

At present, in order to facilitate the movement of patients with inconvenience, Chinese Patent No. CN201711074877.5, named as a convenient toilet device, provides a toilet device that can open the seat to facilitate the patient to ride and move, but in the patent disclosed in the In the technical solution, a multi-stage lifting mechanism is used and a locking mechanism needs to be configured. The structure is complex, and the lifting adjustment is troublesome. The height adjustment cannot be performed when a patient is loaded. The scheme cannot meet the requirements of use, and adopts multi-stage adjustment, which cannot accurately adjust the seat height, restricts the scope of use, and has poor use effect.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve at least one of the technical problems existing in the prior art, and to provide a shifter, which can adjust the height when carrying a patient, and can perform stepless height adjustment with better use effect.

The technical scheme adopted by the present invention to solve its technical problems is:

A shifter, comprising: a base frame, a seat frame assembly arranged above the base frame, a screw lifting mechanism arranged between the base frame and the seat frame assembly, and the base frame can be adjusted by the screw lifting mechanism The separation distance from the mount assembly.

One of the above technical solutions has at least one of the following advantages or beneficial effects: the screw lifting mechanism adopts the principle of thread lifting to perform lifting action, and the height of the seat frame assembly can also be adjusted when people are loaded, which is convenient to adjust and can be adjusted. It realizes stepless adjustment, can be adjusted to any height within the height adjustment range, has strong applicability, is more convenient to use, and has better use effect.

According to some embodiments of the present invention, the seat frame assembly includes a first seat frame and a second seat frame that are disposed oppositely and can rotate relative to each other, so as to facilitate moving them to a bed or other positions to open and receive a patient.

According to some embodiments of the present invention, the seat frame assembly is slidably arranged on the bottom frame through a sliding mechanism, so as to adjust the height of the seat frame assembly in cooperation with the screw lifting mechanism.

According to some embodiments of the present invention, the sliding mechanism includes a sliding rod and a sleeve sleeved on the sliding rod and slidably matched with the sliding rod, one of the sliding rod and the sleeve is disposed on the bottom frame The other is set on the seat frame assembly, and the seat frame assembly is set on the bottom frame through the cooperation of the sliding rod and the sleeve.

According to some embodiments of the present invention, the sliding rod is provided on the base frame, and the sleeve is provided on the seat frame assembly.

According to some embodiments of the present invention, the screw lifting mechanism includes a lifting frame, on which is provided a lifting sleeve corresponding to the sliding rod, the lifting sleeve is slidably sleeved on the sliding rod, and the screw lifting mechanism The lifting frame can be driven to move up and down relative to the base frame, and the lifting frame can push the seat frame assembly to move upward, that is, the lifting frame can directly push the seat frame assembly to move, so as to realize the height adjustment of the seat frame assembly.

According to some embodiments of the present invention, the screw lifting mechanism further includes a screw screw disposed on the lifting frame or the bottom frame to rotate, and a nut corresponding to the screw rod and disposed on the bottom frame or the lifting frame, so as to realize the screw lifting adjustment.

According to some embodiments of the present invention, the screw rod is connected to a reversing connection mechanism to change the position of the rotation driving mechanism of the screw rod. The screw rod is generally arranged vertically or nearly vertically according to the lifting direction. The rotation driving mechanism of the screw extends to the side or the upper side of the shifter, which is convenient for turning the driving screw to adjust the height.

According to some embodiments of the present invention, the reversing connection mechanism includes a worm and a worm wheel corresponding to the worm, the nut is fixedly arranged on the chassis, the screw is rotatably arranged on the lifting frame, and the worm wheel is arranged on the On the screw rod, the worm is rotatably arranged on the lifting frame and can be engaged with the worm wheel, and the mechanism for driving the screw lifting mechanism can be extended to the side of the shifter through the worm, so as to facilitate height adjustment.

According to some embodiments of the present invention, a rocking handle is connected to the worm, so that the worm can be rotated to adjust the height of the seat frame assembly.

According to some embodiments of the present invention, the rocker is a foldable rocker, so as to reduce the space occupied and facilitate the movement of the shifter.

According to some embodiments of the present invention, the sliding rods are configured in two groups and arranged on the bottom frame, the first seat frame and the second seat frame are respectively provided with sleeves corresponding to the two groups of sliding rods, the Two sets of lifting sleeves corresponding to the sliding rods are respectively arranged on both sides of the lifting frame to improve the balance of the lifting movement.

According to some embodiments of the present invention, push handles are respectively provided on the rear sides of the first seat frame and the second seat frame to facilitate pushing the shifter.

According to some embodiments of the present invention, the first seat frame and/or the second seat frame is provided with an insertion seat that can be used to insert the drip rack, so as to facilitate the placement of the drip rack.

According to some embodiments of the present invention, a locking device is provided between the first seat frame and the second seat frame, so as to facilitate locking the first seat frame and the second seat frame, prevent them from being opened during riding, and improve safety .

According to some embodiments of the present invention, several rollers are provided on the bottom frame to facilitate the movement of the shifter.

According to some embodiments of the present invention, backrest pads and armrests are respectively provided on the first seat frame and the second seat frame, so as to improve riding comfort.

Description of drawings

Below in conjunction with accompanying drawing and embodiment, the present invention is further described;

1 is a schematic front view of a specific embodiment of the present invention;

2 is an exploded schematic view of a specific embodiment of the present invention;

3 is an exploded schematic view of a screw lift mechanism according to a specific embodiment of the present invention;

FIG. 4 is a schematic diagram of a rear structure of a specific embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a specific embodiment of the present invention when it is opened.

Detailed ways

This part will describe the specific embodiments of the present invention in detail, and the preferred embodiments of the present invention are shown in the accompanying drawings. Each technical feature and overall technical solution of the invention should not be construed as limiting the protection scope of the invention.

In the description of the present invention, it should be understood that the azimuth description, such as the azimuth or position relationship indicated by up, down, front, rear, left, right, etc., is based on the azimuth or position relationship shown in the drawings, only In order to facilitate the description of the present invention and simplify the description, it is not indicated or implied that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including this number, above, below, within, etc. are understood as including this number. If it is described that the first and the second are only for the purpose of distinguishing technical features, it cannot be understood as indicating or implying relative importance, or indicating the number of the indicated technical features or the order of the indicated technical features. relation.

In the description of the present invention, unless otherwise clearly defined, words such as setting, installation, connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

As shown in FIG. 1, a shifter includes: a base frame 1, a seat frame assembly arranged above the base frame 1, a screw lifting mechanism 3 arranged between the base frame 1 and the seat frame assembly, The distance between the bottom frame 1 and the seat frame assembly can be adjusted through the screw lifting mechanism 3. The screw lifting mechanism adopts the principle of screw lifting to carry out the lifting action. It is convenient, and can realize stepless adjustment, can be adjusted to any height within the height adjustment range, has strong applicability, is more convenient to use, and has better use effect.

According to some embodiments of the present invention, as shown in FIG. 1 and FIG. 5 , the seat frame assembly includes a first seat frame 21 and a second seat frame 22 that are arranged opposite to each other and can rotate relative to each other, so as to facilitate moving them to the bed or Other positions are open to receive patients.

According to some embodiments of the present invention, as shown in FIG. 1 , after the first seat frame 21 and the second seat frame 22 are folded, a space is reserved in the middle to facilitate the patient to go to the toilet. In addition, the bottom of the seat frame assembly can be provided with a toilet bowl to facilitate the use of the patient.

According to some embodiments of the present invention, the seat frame assembly is slidably arranged on the base frame 1 through a sliding mechanism, so as to cooperate with the screw lifting mechanism 3 to adjust the height of the seat frame assembly.

Of course, in the specific implementation process, the seat frame assembly may not be directly connected with the bottom frame 1, but may be directly arranged on the screw lifting mechanism 3, and can also be adjusted up and down, which will not be described in detail here.

According to some embodiments of the present invention, as shown in FIG. 2 , the sliding mechanism includes a sliding rod 11 and a sleeve 23 sleeved on the sliding rod 11 and slidably matched with the sliding rod 11 . One of the two sleeves 23 is set on the base frame 1 and the other is set on the seat frame assembly, and the seat frame assembly is set on the base frame 1 through the cooperation of the sliding rod 11 and the sleeve 23 .

According to some embodiments of the present invention, as shown in FIG. 2 , the sliding rod 11 is provided on the bottom frame 1 , and the sleeve 23 is provided on the seat frame assembly. Of course, in the specific implementation process, the sliding rod can also be 11 is arranged on the seat frame assembly, and the sleeve 23 is arranged on the base frame 1, which will not be described in detail here.

According to some embodiments of the present invention, as shown in FIG. 2 and FIG. 3 , the screw lifting mechanism 3 includes a lifting frame 31 . The lifting frame 31 is provided with a lifting sleeve 32 corresponding to the sliding rod 11 . The sleeve 32 is slidably sleeved on the sliding rod 11 , and the screw lifting mechanism 3 can drive the lifting frame 31 to move up and down relative to the base frame 1 , and can push the seat frame assembly to move upward through the lifting frame 31 , that is, directly push the lifting frame 31 The seat frame assembly moves to realize height adjustment of the seat frame assembly.

According to some embodiments of the present invention, as shown in FIG. 3 , the screw lifting mechanism 3 further includes a screw rod 33 rotatably disposed on the lifting frame 31 or the bottom frame 1 , and a screw rod 33 corresponding to the screw rod 33 and disposed on the bottom frame 1 or the lifting and lowering frame 1 . The nut 34 on the frame 31 can realize the adjustment of the screw up and down.

According to some embodiments of the present invention, as shown in FIG. 2 , an extension pipe 341 is provided on the base frame 1 , the nut 34 is fixedly arranged on the extension pipe 341 , and the extension pipe 341 is provided with a screw capable of accommodating a screw. 33 to avoid exposing the screw 33.

Of course, in the specific implementation process, the screw lifting mechanism 3 may not be equipped with a lifting frame, the screw rod 33 of the screw lifting mechanism 3 is rotated and arranged on the seat frame assembly or the lower frame 1, and the nut 34 is arranged on the lower frame 1 or the seat frame. On the component, the lifting adjustment can also be realized.

In addition, in the specific implementation process, the screw rod 33 can also be fixedly installed, and the nut 34 can be set to be rotatable, and the lifting adjustment can also be realized, which will not be described in detail here.

According to some embodiments of the present invention, the screw rod 33 is connected to a reversing connection mechanism to change the position of the rotation driving mechanism of the screw rod 33. In the specific implementation process, the screw rod 33 is generally vertically arranged or close to vertical according to the lifting direction. The rotation driving mechanism of the screw rod 33 can be extended to a position such as the side or the upper side of the shifter through the reversing connection mechanism, so as to facilitate the rotation of the driving screw rod 33 to adjust the height.

According to some embodiments of the present invention, as shown in FIG. 3 , the reversing connection mechanism includes a worm 35 and a worm wheel 36 corresponding to the worm 35 , the nut 34 is fixedly arranged on the chassis 1 , the screw 33 The worm gear 36 is rotatably arranged on the lifting frame 31, the worm gear 36 is arranged on the screw 33, and the worm 35 is rotatably arranged on the lifting frame 31 and can be engaged with the worm gear 36. The mechanism for driving the screw lifting mechanism 3 can be extended to the Side of the shifter for easy height adjustment.

Of course, in the specific implementation process, the reversing connection mechanism can also be a universal joint mechanism, and the mechanism for driving the screw lifting mechanism 3 can also be extended to the side of the shifter, which will not be described in detail here.

According to some embodiments of the present invention, as shown in FIG. 2 , a rocker 351 is connected to the worm 35 so as to conveniently rotate the worm 35 to adjust the height of the seat frame assembly.

According to some embodiments of the present invention, as shown in FIG. 3 , the handle 351 is a foldable handle, so as to reduce the space occupied and facilitate the movement of the shifter.

According to some embodiments of the present invention, as shown in FIG. 2 , the sliding rods 11 are configured in two groups and disposed on the base frame 1 , and the first seat frame 21 and the second seat frame 22 are respectively provided with two The sleeves 23 corresponding to the sliding rods 11 are provided with two sets of lifting sleeves 32 corresponding to the sliding rods 11 on both sides of the lifting frame 31 to improve the balance of the lifting movement.

Of course, in the specific implementation process, a single slide bar 11 or more than two sets of slide bars 11 may also be used, which will not be described in detail here.

According to some embodiments of the present invention, as shown in FIG. 2 , push handles 24 are respectively provided on the rear sides of the first seat frame 21 and the second seat frame 22 to facilitate pushing the shifter.

According to some embodiments of the present invention, as shown in FIG. 1 , the front side of the first seat frame 21 and the second seat frame 22 is provided with a front handle 223 to facilitate moving the shifter.

According to some embodiments of the present invention, as shown in FIG. 2 , the first seat frame 21 and/or the second seat frame 22 is provided with an insertion seat 25 that can be used to insert the drip rack, so as to facilitate the placement of the drip rack .

According to some embodiments of the present invention, as shown in FIGS. 4 and 5 , a locking device 26 is provided between the first seat frame 21 and the second seat frame 22 to facilitate locking the first seat frame 21 and the second seat frame 22 The seat frame 22 is prevented from being opened during the ride and improves safety.

According to some embodiments of the present invention, as shown in FIG. 1 , a plurality of rollers 12 with braking functions are provided on the base frame 1 to facilitate the movement of the shifter and to brake to stop.

In the specific implementation process, the roller can be braked by friction pads or braked in position, which are relatively common structures in the field of rollers, and will not be described in detail here.

According to some embodiments of the present invention, as shown in FIG. 1 , the first seat frame 21 and the second seat frame 22 are respectively provided with a backrest pad 221 and an armrest 222 to improve riding comfort.

Those skilled in the art can easily understand that, under the premise of no conflict, the above preferred modes can be freely combined and superimposed.

The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments. Within the scope of knowledge possessed by those of ordinary skill in the technical field, various modifications can be made without departing from the purpose of the present invention. kind of change.

Claims (10)

1. A shifter, comprising:

a chassis (1);

a seat frame assembly arranged above the underframe (1) and comprising a first seat frame (21) and a second seat frame (22) which are arranged oppositely and can rotate oppositely;

the spiral lifting mechanism (3) is arranged between the underframe (1) and the seat frame assembly, and the spacing distance between the underframe (1) and the seat frame assembly can be adjusted through the spiral lifting mechanism (3).

2. The shifter of claim 1,

the seat frame assembly is arranged on the bottom frame (1) in a sliding mode through a sliding mechanism.

3. The shifter of claim 2,

the sliding mechanism comprises a sliding rod (11) and a sleeve (23) which is sleeved on the sliding rod (11) and can be in sliding fit with the sliding rod (11), one of the sliding rod (11) and the sleeve (23) is arranged on the bottom frame (1), and the other is arranged on the seat frame component.

4. The shifter of claim 3,

spiral elevating system (3) include crane (31), be provided with lifting sleeve (32) that correspond with slide bar (11) on crane (31), lifting sleeve (32) slip suit is on slide bar (11), spiral elevating system (3) can drive crane (31) for chassis (1) lifting movement to can promote the seat frame subassembly rebound through crane (31).

5. The shifter of claim 4,

the spiral lifting mechanism (3) further comprises a screw rod (33) rotatably arranged on the lifting frame (31) or the base frame (1) and a nut (34) which corresponds to the screw rod (33) and is arranged on the base frame (1) or the lifting frame (31).

6. The shifter of claim 5,

the screw (33) is connected to a reversing connection mechanism.

7. The shifter of claim 6,

the reversing connection mechanism comprises a worm (35) and a worm wheel (36) corresponding to the worm (35), a nut (34) is fixedly arranged on the base frame (1), the screw rod (33) is rotatably arranged on the lifting frame (31), the worm wheel (36) is arranged on the screw rod (33), and the worm (35) is rotatably arranged on the lifting frame (31) and can be meshed with the worm wheel (36).

8. The shifter of claim 7,

the worm (35) is connected with a hand crank (351).

9. The shifter of claim 4,

the sliding rods (11) are provided with two groups and are arranged on the bottom frame (1), sleeves (23) corresponding to the two groups of sliding rods (11) are respectively arranged on the first seat frame (21) and the second seat frame (22), and lifting sleeves (32) corresponding to the two groups of sliding rods (11) are respectively arranged on two sides of the lifting frame (31).

10. The shifter of claim 1,

the rear sides of the first seat frame (21) and the second seat frame (22) are respectively provided with a push handle (24), the first seat frame (21) and/or the second seat frame (22) are/is provided with a plug-in mounting seat (25) capable of being used for plugging a drip stand, a locking device (26) is arranged between the first seat frame (21) and the second seat frame (22), and the bottom frame (1) is provided with a plurality of rollers (12) with a braking function.

Images