Shifter

Abstract

The present invention discloses a shifter, comprising: a base frame, a seat frame assembly arranged above the base frame, and a spiral lifting mechanism arranged between the base frame and the seat frame assembly. The spiral lifting mechanism can adjust the spacing distance between the base frame and the seat frame assembly. The spiral lifting mechanism adopts the principle of thread lifting to perform lifting and lowering actions. The seat frame assembly can also be height-adjusted when carrying people. The adjustment is convenient and stepless adjustment can be achieved. It can be adjusted to any height within the height adjustment range. It has strong applicability, is more convenient to use, and has better use effect.

Description

Technical Field

[0001] The present invention relates to the field of medical equipment, and in particular to a shifter. Background Art

[0002] At present, in order to facilitate the movement of patients with limited mobility, Chinese patent number CN201711074877.5, named a convenient toilet device, provides a toilet device with an open seat to facilitate patients to sit and move. However, the technical solution disclosed in the patent adopts a multi-stage lifting mechanism and needs to be configured with a locking mechanism. The structure is complicated and the lifting and adjustment is troublesome. The height cannot be adjusted when the patient is on board. For example, when transferring from a bed to a sofa or a toilet, the height position changes. The technical solution cannot meet the use requirements, and the graded multi-stage adjustment is adopted, and the seat height cannot be accurately adjusted, which limits the scope of use and the use effect is not good. Summary of the invention

[0003] 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 that can adjust the height when carrying a patient, and can perform stepless height adjustment, so as to achieve better use effect.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A shifter comprises: a base frame, a seat frame assembly arranged above the base frame, and a spiral lifting mechanism arranged between the base frame and the seat frame assembly, wherein the spacing distance between the base frame and the seat frame assembly can be adjusted by the spiral lifting mechanism.

[0006] One of the above technical solutions has at least one of the following advantages or beneficial effects: the spiral lifting mechanism adopts the principle of thread lifting to perform lifting actions, and the seat frame assembly can also be height-adjusted when carrying people. The adjustment is convenient and stepless adjustment can be achieved. It can be adjusted to any height within the height adjustment range. It has strong applicability, is more convenient to use, and has better use effect.

[0007] According to some embodiments of the present invention, the seat frame assembly includes a first seat frame and a second seat frame that are arranged opposite to each other and can rotate relative to each other, so as to facilitate moving it to a bed or other location to open and receive a patient.

[0008] According to some embodiments of the present invention, the seat frame assembly is slidably disposed on the base frame via a sliding mechanism to cooperate with a spiral lifting mechanism to adjust the height of the seat frame assembly.

[0009] According to some embodiments of the present invention, the sliding mechanism includes a sliding rod and a sleeve that is sleeved on the sliding rod and can slide with the sliding rod. One of the sliding rod and the sleeve is set on the base frame, and the other is set on the seat frame assembly. The seat frame assembly is set on the base frame through the cooperation between the sliding rod and the sleeve.

[0010] According to some embodiments of the present invention, the slide bar is disposed on a base frame, and the sleeve is disposed on a seat frame assembly.

[0011] According to some embodiments of the present invention, the spiral lifting mechanism includes a lifting frame, on which is provided a lifting sleeve corresponding to the sliding rod, and the lifting sleeve is slidably mounted on the sliding rod. The spiral lifting mechanism can drive the lifting frame to move up and down relative to the base frame, and can push the seat frame assembly to move upward through the lifting frame, that is, the seat frame assembly is directly pushed to move through the lifting frame, thereby achieving height adjustment of the seat frame assembly.

[0012] According to some embodiments of the present invention, the spiral lifting mechanism further comprises a screw rod rotatably arranged on the lifting frame or the base frame, and a nut arranged on the base frame or the lifting frame corresponding to the screw rod, so as to realize the spiral lifting adjustment.

[0013] According to some embodiments of the present invention, the screw is connected to a reversing connection mechanism to change the position of the screw's rotation drive mechanism. The screw is generally set vertically or nearly vertically according to the lifting direction. The screw's rotation drive mechanism can be extended to the side or upper side of the shifter through the reversing connection mechanism, which facilitates the rotation drive screw to adjust the height.

[0014] 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 set on the base frame, the screw is rotatably set on the lifting frame, the worm wheel is set on the screw, the worm is rotatably set on the lifting frame and can engage with the worm wheel, and the mechanism for driving the spiral lifting mechanism can be extended to the side of the shifter through the worm, so as to facilitate height adjustment.

[0015] According to some embodiments of the present invention, a crank is connected to the worm to facilitate rotating the worm to adjust the height of the seat frame assembly.

[0016] According to some embodiments of the present invention, the crank is a foldable crank to reduce the occupied space and facilitate the movement of the shifter.

[0017] According to some embodiments of the present invention, the sliding rods are configured in two groups and are arranged on the base frame, the first seat frame and the second seat frame are respectively provided with sleeves corresponding to the two groups of sliding rods, and two groups of lifting sleeves corresponding to the sliding rods are respectively provided on both sides of the lifting frame to improve the balance of the lifting movement.

[0018] 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.

[0019] According to some embodiments of the present invention, a plug-in seat capable of plugging in an IV stand is provided on the first stand and / or the second stand to facilitate placement of the IV stand.

[0020] According to some embodiments of the present invention, a locking device is provided between the first seat frame and the second seat frame to facilitate locking the first seat frame and the second seat frame to prevent them from opening during riding, thereby improving safety.

[0021] According to some embodiments of the present invention, a plurality of rollers are provided on the base frame to facilitate the movement of the shifter.

[0022] According to some embodiments of the present invention, a backrest cushion and an armrest are respectively provided on the first seat frame and the second seat frame to improve riding comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments;

[0024] Figure 1 It is a front structural schematic diagram of a specific embodiment of the present invention;

[0025] Figure 2 It is a schematic diagram of an exploded view of a specific embodiment of the present invention;

[0026] Figure 3 It is an exploded schematic diagram of a spiral lifting mechanism of a specific embodiment of the present invention;

[0027] Figure 4 It is a schematic diagram of the back structure of a specific embodiment of the present invention;

[0028] Figure 5 It is a schematic diagram of the structure of a specific embodiment of the present invention when it is opened. DETAILED DESCRIPTION

[0029] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0033] like Figure 1 As shown, a shifter includes: a base frame 1, a seat frame assembly arranged above the base frame 1, and a spiral lifting mechanism 3 arranged between the base frame 1 and the seat frame assembly. The spiral lifting mechanism 3 can adjust the spacing distance between the base frame 1 and the seat frame assembly. The spiral lifting mechanism adopts the principle of thread lifting to perform lifting and lowering movements. The seat frame assembly can also be height-adjusted when carrying people. The adjustment is convenient and stepless adjustment can be achieved. It can be adjusted to any height within the height adjustment range. It has strong applicability, is more convenient to use, and has better use effect.

[0034] According to some embodiments of the present invention, Figure 1 , Figure 5 As shown, the seat frame assembly includes a first seat frame 21 and a second seat frame 22 which are arranged opposite to each other and can rotate relative to each other, so as to facilitate moving it to a bed or other position to open and receive a patient.

[0035] According to some embodiments of the present invention, Figure 1 As shown, after the first seat frame 21 and the second seat frame 22 are closed, a space is reserved in the middle part for the convenience of patients going to the toilet. In addition, a toilet can be arranged at the bottom of the seat frame assembly for the convenience of patients.

[0036] According to some embodiments of the present invention, the seat frame assembly is slidably disposed on the base frame 1 via a sliding mechanism to cooperate with the spiral lifting mechanism 3 to adjust the height of the seat frame assembly.

[0037] Of course, in the specific implementation process, the seat frame assembly may not be directly connected to the base frame 1, but is directly arranged on the spiral lifting mechanism 3, and can also be raised and lowered and adjusted, which will not be described in detail here.

[0038] According to some embodiments of the present invention, Figure 2 As shown, the sliding mechanism includes a sliding rod 11 and a sleeve 23 which is sleeved on the sliding rod 11 and can slide with the sliding rod 11. One of the sliding rod 11 and the sleeve 23 is set on the base frame 1, and the other is set on the seat frame assembly. The seat frame assembly is set on the base frame 1 through the cooperation between the sliding rod 11 and the sleeve 23.

[0039] According to some embodiments of the present invention, Figure 2 As shown, the slide bar 11 is arranged on the base frame 1, and the sleeve 23 is arranged on the seat frame assembly. Of course, in the specific implementation process, the slide bar 11 can also be arranged on the seat frame assembly, and the sleeve 23 can be arranged on the base frame 1, which will not be described in detail here.

[0040] According to some embodiments of the present invention, Figure 2 , Figure 3 As shown, the spiral lifting mechanism 3 includes a lifting frame 31, on which a lifting sleeve 32 corresponding to the slide rod 11 is provided, and the lifting sleeve 32 is slidably sleeved on the slide rod 11. The spiral 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, the lifting frame 31 directly pushes the seat frame assembly to move, thereby realizing the height adjustment of the seat frame assembly.

[0041] According to some embodiments of the present invention, Figure 3 As shown, the spiral lifting mechanism 3 also includes a screw rod 33 rotatably arranged on the lifting frame 31 or the base frame 1 , and a nut 34 corresponding to the screw rod 33 and arranged on the base frame 1 or the lifting frame 31 , so as to realize the spiral lifting adjustment.

[0042] According to some embodiments of the present invention, Figure 2 As shown, an extension pipe 341 is provided on the base frame 1, and the nut 34 is fixedly provided on the extension pipe 341. A space capable of accommodating the screw rod 33 is provided inside the extension pipe 341 to prevent the screw rod 33 from being exposed.

[0043] Of course, in the specific implementation process, the spiral lifting mechanism 3 may not be equipped with a lifting frame. The screw 33 of the spiral lifting mechanism 3 is rotated and set on the seat frame assembly or the base frame 1, and the nut 34 is set on the base frame 1 or the seat frame assembly, which can also achieve lifting adjustment.

[0044] 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, which can also achieve lifting and lowering adjustment, which will not be described in detail here.

[0045] According to some embodiments of the present invention, the screw 33 is connected to a reversing connection mechanism to change the position of the rotation drive mechanism of the screw 33. In the specific implementation process, the screw 33 is generally set vertically or nearly vertically according to the lifting direction. The rotation drive mechanism of the screw 33 can be extended to the side or upper side of the shifter through the reversing connection mechanism, so as to facilitate the rotation drive screw 33 to adjust the height.

[0046] According to some embodiments of the present invention, Figure 3 As shown, the reversing connection mechanism includes a worm 35 and a worm wheel 36 corresponding to the worm 35, the nut 34 is fixedly set on the base frame 1, the screw 33 is rotatably set on the lifting frame 31, the worm wheel 36 is set on the screw 33, the worm 35 is rotatably set on the lifting frame 31 and can engage with the worm wheel 36, and the mechanism for driving the spiral lifting mechanism 3 can be extended to the side of the shifter through the worm 35, so as to facilitate height adjustment.

[0047] Of course, in the specific implementation process, the reversing connection mechanism can also be a universal joint mechanism, and the mechanism driving the spiral lifting mechanism 3 can also be extended to the side of the shifter, which will not be described in detail here.

[0048] According to some embodiments of the present invention, Figure 2 As shown, a crank 351 is connected to the worm 35 to facilitate rotating the worm 35 to adjust the height of the seat frame assembly.

[0049] According to some embodiments of the present invention, Figure 3 As shown, the crank handle 351 is a foldable crank handle to reduce the occupied space and facilitate the movement of the shifter.

[0050] According to some embodiments of the present invention, Figure 2 As shown, the slide bars 11 are configured with two groups and are arranged on the base frame 1, the first seat frame 21 and the second seat frame 22 are respectively provided with sleeves 23 corresponding to the two groups of slide bars 11, and the lifting sleeves 32 corresponding to the two groups of slide bars 11 are respectively provided on both sides of the lifting frame 31 to improve the balance of the lifting movement.

[0051] Of course, in the specific implementation process, a single sliding rod 11 or more than two sets of sliding rods 11 may also be used, which will not be described in detail here.

[0052] According to some embodiments of the present invention, Figure 2 As shown, push handles 24 are respectively provided at the rear sides of the first seat frame 21 and the second seat frame 22 to facilitate pushing the shifter.

[0053] According to some embodiments of the present invention, Figure 1 As shown, a front handle 223 is provided on the front side of the first seat frame 21 and the second seat frame 22 to facilitate the movement of the shifter.

[0054] According to some embodiments of the present invention, Figure 2 As shown, the first frame 21 and / or the second frame 22 are provided with a plug-in seat 25 that can be used to plug in the drip stand, so as to facilitate the placement of the drip stand.

[0055] According to some embodiments of the present invention, Figure 4 , Figure 5 As shown, a locking device 26 is provided between the first seat frame 21 and the second seat frame 22 to facilitate locking of the first seat frame 21 and the second seat frame 22 to prevent them from opening during riding, thereby improving safety.

[0056] According to some embodiments of the present invention, Figure 1 As shown, a plurality of rollers 12 with brake function are arranged on the base frame 1 to facilitate the movement of the shifter and to stop the shifter by brake.

[0057] In the specific implementation process, the roller can be braked by a friction plate or a locking brake, both of which are relatively common structures in the roller field and will not be described in detail here.

[0058] According to some embodiments of the present invention, Figure 1 As shown, a backrest cushion 221 and an armrest 222 are respectively provided on the first seat frame 21 and the second seat frame 22 to improve the riding comfort.

[0059] It is easy for those skilled in the art to understand that the above preferred embodiments can be freely combined and superimposed without conflict.

[0060] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A shifter, characterized in that include: Base frame (1); A seat frame assembly, the seat frame assembly being arranged above the base frame (1), and comprising a first seat frame (21) and a second seat frame (22) which are arranged opposite to each other and can rotate relative to each other; A spiral lifting mechanism (3), wherein the spiral lifting mechanism (3) is arranged between the base frame (1) and the seat frame assembly, and the spacing distance between the base frame (1) and the seat frame assembly can be adjusted by the spiral lifting mechanism (3); The seat frame assembly is slidably arranged on the base frame (1) through a sliding mechanism, the sliding mechanism comprising a sliding rod (11) and a sleeve (23) sleeved on the sliding rod (11) and capable of slidingly cooperating with the sliding rod (11), the sliding rod (11) is configured with two groups and arranged on the base frame (1), and the first seat frame (21) and the second seat frame (22) are respectively provided with sleeves (23) corresponding to the two groups of sliding rods (11); The spiral lifting mechanism (3) comprises a lifting frame (31), two groups of lifting sleeves (32) corresponding to the sliding rods (11) are respectively arranged on both sides of the lifting frame (31), and the lifting sleeves (32) are slidably sleeved on the sliding rods (11). The spiral lifting mechanism (3) can drive the lifting frame (31) to move up and down relative to the base frame (1), and the lifting sleeves (32) are located below the sleeves (23). When the lifting frame (31) moves upward relative to the base frame (1), the sleeves (23) can be pushed upward by the lifting sleeves (32), so as to push the seat frame assembly to move upward; The spiral lifting mechanism (3) also includes a screw rod (33) rotatably arranged on the lifting frame (31) and a nut (34) arranged on the base frame (1) corresponding to the screw rod (33); an extension pipe (341) extending upward is arranged on the base frame (1); the nut (34) is fixedly arranged on the extension pipe (341); and a space capable of accommodating the screw rod (33) is arranged inside the extension pipe (341).

2. The shifter according to claim 1, characterized in that The screw rod (33) is connected to a reversing connection mechanism.

3. The shifter according to claim 2, characterized in that The reversing connection mechanism comprises a worm (35) and a worm wheel (36) corresponding to the worm (35); the nut (34) is fixedly arranged on the base frame (1); the screw (33) is rotatably arranged on the lifting frame (31); the worm wheel (36) is arranged on the screw (33); the worm (35) is rotatably arranged on the lifting frame (31) and can mesh with the worm wheel (36).

4. The shifter according to claim 3, characterized in that The worm (35) is connected to a rocker (351).

5. The shifter according to claim 1, characterized in that A push handle (24) is provided on the rear side of the first frame (21) and the second frame (22), respectively; a plug-in seat (25) capable of plugging an IV stand is provided on the first frame (21) and / or the second frame (22); a locking device (26) is provided between the first frame (21) and the second frame (22); and a plurality of rollers (12) with a braking function are provided on the base frame (1).

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