CN204852212U

CN204852212U - Medical appliance

Info

Publication number: CN204852212U
Application number: CN201520534708.5U
Authority: CN
Inventors: 王春昕
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-02-16
Filing date: 2015-02-16
Publication date: 2015-12-09
Anticipated expiration: 2025-02-16
Also published as: CN204848172U; CN204840011U; CN204852211U; CN204852210U; CN204981003U; CN204477221U

Abstract

The utility model discloses a medical appliance belongs to machinery, its characterized in that: including rack, motor, tooth rest, casing and a plurality of gear, the rack mesh mutually with a gear, the motor output shaft connect no. Three gears, no. Three gears with no. Two gears mesh mutually, the tooth rest articulated mutually with the axle at gear, no. Two gear places, motor and tooth rest fixed connection, the below of no. Two gears is equipped with the gear no. Four, and no. Four the gear meshes with no. Two gears mutually, no. Four gear fixed connection coaxial star wheels, the tooth rest on be equipped with intermeshing's no. Five gears and sixth gear, no. Five gears and sixth gear be coaxial no. Two star wheels and no. Three star wheels of fixed connection respectively. Compared with the prior art the characteristics that have power saving, stable performance.

Description

A kind of medical aid

Technical field

The utility model is that (application number: divisional application 2015201128801), relates to a kind of mechanical device to utility application " a kind of lowering or hoisting gear ", particularly a kind of lowering or hoisting gear being applicable to material lifting, assistance for lifting.

Background technique

Lifting structure is widely used in multiple mechanical device device, as material lifting, assistance for lifting etc.Current utilization the most widely lowering or hoisting gear is electric lifting/lowering, causes larger impact for preventing free rate of descent too fast in wherein decline process, usually adopts motoring to decline and the mode of friction is slowed down decline.The former decline process in the loss causing electric power, after the latter's Long-Time Service can because friction member wearing and tearing and cause malfunctioning phenomenon.

Model utility content

Technical assignment of the present utility model is for above the deficiencies in the prior art, provides a kind of lowering or hoisting gear of a kind of power saving, stable performance.

The technical scheme in the invention for solving the technical problem is: a kind of lowering or hoisting gear, is characterized in that: comprise tooth bar, motor, gear carrier, housing and multiple gear; Described tooth bar is vertically placed, and through housing, described tooth bar is meshed with a gear, and a gear and No. two gears form a duplicate gear jointly, and the axle of duplicate gear is arranged on described housing; Described motor output shaft connects No. three gears, and No. three gears are meshed with described No. two gears; The axle at described gear carrier and a gear, No. two gear places is hinged; Described motor is fixedly connected with gear carrier; The below of No. two gears is provided with No. four gears, and No. four gears are meshed with No. two gears, and No. four gears are fixedly connected with a coaxial star wheel; The axle of No. four gears and a star wheel is arranged on described housing; Described gear carrier is provided with intermeshing No. five gears and No. six gears, and No. five gears are fixedly connected with No. two coaxial star wheels and No. three star wheels respectively with No. six gears; Three described star wheels are positioned on same vertical plane, and No. two star wheels and No. three star wheel maximum radius sums are less than No. five gears and No. six gear compound graduation circle radius sums; Described tooth bar lower end is fixedly connected with an annulus.

An above-mentioned gear diameter is less than No. two gear diameters, and No. two gear diameters are greater than No. four gear diameters, and No. four gear diameters are less than the maximum diameter of a star wheel.

Compared with prior art, the utility model has following outstanding beneficial effect:

1, declined by self gravitation, save electric energy;

2, slow reduction of speed degree can not change because of parts depreciation, stable performance;

3, slow reduction of speed degree can not the significant change because the body weight of user is different.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Fig. 2 is embodiment one structural representation of the present utility model.

Fig. 3 is embodiment two structural representation of the present utility model.

Fig. 4 is embodiment three structural representation of the present utility model.

Fig. 5 is embodiment four structural representation of the present utility model.

Fig. 6 is lowering or hoisting gear and stuck apparatus structure schematic diagram in embodiment four of the present utility model.

Fig. 7 is embodiment five structural representation of the present utility model.

Fig. 8 is the plan view of funnel in embodiment five of the present utility model.

Fig. 9 is lowering or hoisting gear and stuck apparatus structure schematic diagram in embodiment five of the present utility model.

Figure 10 is embodiment six structural representation of the present utility model.

Figure 11 is lifting device structure schematic diagram in embodiment six of the present utility model.

Figure 12 be in Figure 10 of the present utility model A-A to sectional view.

Embodiment

Below in conjunction with specification drawings and specific embodiments, the utility model is further illustrated.

As shown in Figure 1, the utility model is a kind of, and described lowering or hoisting gear embodiment comprises tooth bar 7, motor 9, gear carrier 10, housing 8 and multiple gear, and it is inner that described motor 9, gear carrier 10, housing 8 and multiple gear are positioned at housing 8.

Described tooth bar 7 is vertically placed, and through housing 8, tooth bar 7 connects the object needing lifting, and described tooth bar 7 is meshed with a gear 1, and a gear 1 and No. two gears 2 form a duplicate gear jointly, and the axle of duplicate gear is arranged on described housing 8.Described motor 9 output shaft connects No. three gears 3, No. three gears 3 and is meshed with described No. two gears 2.

The axle at described gear carrier 10 and a gear 1, No. two gear 2 places is hinged, and carry out by housing 8 angle that limiting gear frame 10 rotates, the limit structure of described restriction can be the external shape of housing 8, or outstanding in housing 8.Described motor 9 is fixedly connected with gear carrier 10.Because the axle of gear carrier 10 around No. two gear 2 places rotates, so in rotary course, No. three gears 3 can be meshed with No. two gears 2 all the time.

The below of No. two gears 2 is provided with No. four gears 4, No. four gears 4 and is meshed with No. two gears 2, and No. four gears 4 are fixedly connected with a coaxial star wheel 11.The axle of No. four gears 4 and a star wheel 11 is arranged on described housing 8.Described gear carrier 10 is provided with intermeshing No. five gears 5 and No. six gears 6, No. five gears 5 are fixedly connected with coaxial No. two star wheels 12 and No. three star wheels 13 respectively with No. six gears 6.Three described star wheels are positioned on same vertical plane, and meet: 1. No. two star wheels 12 and No. three star wheel 13 maximum radius (i.e. the spacing in sharp corner and the center of circle) sums are less than No. five gears 5 and No. six gear 6 reference radius sums, to ensure that No. two star wheels 12 and No. three star wheels 13 can not collide; 2., when gear carrier 10 rotates to lowest part, the wedge angle of the wedge angle of No. two star wheels 12 and No. three star wheels 13 can both collide with the wedge angle of a star wheel 11; 3., when gear carrier 10 rotates to highest point, the wedge angle of the wedge angle of No. two star wheels 12 and No. three star wheels 13 all can not collide with the wedge angle of a star wheel 11.Under gravity, during nature, gear carrier 10 is positioned at the lowest part of its stroke.

Lowering or hoisting gear working principle: when needing the object band carry-over bar 7 of lifting to decline, a gear 1 turns clockwise, No. two gears 2 turn clockwise simultaneously, No. two gears 2 drive No. four gears 4 to be rotated counterclockwise, a star wheel 11 is rotated counterclockwise simultaneously, first star wheel 11 wedge angle collides with No. two star wheel 12 wedge angles, No. two star wheels 12 turn clockwise, No. five gears 5 turn clockwise simultaneously, No. six gears 6 are driven to be rotated counterclockwise, No. three star wheels 13 are rotated counterclockwise simultaneously, star wheel 11 wedge angle collides with No. three star wheels 13 be rotated counterclockwise immediately, No. three star wheels 13 are reversed, namely turn clockwise, No. six gears 6 turn clockwise simultaneously, No. five gears 5 are driven to be rotated counterclockwise, No. two star wheels 12 are rotated counterclockwise simultaneously, the next wedge angle of a star wheel 11 collides with No. two star wheels 12 be rotated counterclockwise immediately ... through the collision gone round and begun again, the rotating speed of a star wheel 11 is controlled in a lower speed all the time, namely the process that tooth bar 7 slowly declines is achieved.The slow process of falling realizes mechanically, without the need to starting motor 9, thus reduces energy loss; Slow fall process by collision but not friction mode realize, therefore can not cause friction factor to change and then slow reduction of speed degree is changed because of the wearing and tearing of part.

When needing when needing the object of lifting to rise, actuating motor 9, motor 9 drives No. three gears 3 to turn clockwise, and No. three gears 3 drive No. two gears 2 to be rotated counterclockwise, and a gear 1 is rotated counterclockwise simultaneously, and a gear 1 is with carry-over bar 7 slowly to rise; Simultaneously No. three gears 3 are subject to the counterclockwise moment that No. two gears 2 act on, gear carrier 10 is subject to the clockwise moment that No. three gears 3 act on, this moment driven gear frame 10 rotates clockwise double dot dash line position in figure, now No. two star wheels 12 and No. three star wheels 13 no longer collide with a star wheel 11, avoid energy loss.

In optimized project, for obtaining slowing effect better, gear 1 diameter is less than No. two gear 2 diameters, and No. two gear 2 diameters are greater than No. four gear 4 diameters, and No. four gear 4 diameters are less than the maximum diameter (i.e. the twice of the spacing in sharp corner and the center of circle) of a star wheel 11.

The utility model can be applied in multiple machine applications, below for specifically to practice.Lifting device structure in following embodiment is specially the utility model, and its inherent composition and annexation are shown in above-mentioned embodiment, are not repeated below its repeating part.

Embodiment one is a kind of lifting device.

In embodiment one, except above-mentioned lowering or hoisting gear, also comprise stuck device.Waiting to be elevated thing, can be operating table surface, material platform etc., and described table top or platform wait for that being elevated thing is fixedly connected with tooth bar 7.

As shown in Figure 2, described stuck device comprises the first sour jujube bar 15, ratchet 23, and the first described sour jujube bar 15 position is fixed, and the flank of tooth of the first sour jujube bar 15 is towards described tooth bar 7.Be provided with horizontal blind hole and vertical holes in described tooth bar 7, described horizontal blind hole opening is positioned at tooth bar 7 towards in the one side of the first sour jujube bar 15, and described vertical holes lower end is communicated with the middle part of horizontal blind hole.Be provided with the first fixture block 16, first fixture block 16 in horizontal hole to be hinged near the first sour jujube bar 15 end and ratchet 23.The first spring 17 is provided with between first fixture block 16 and the cecum of horizontal blind hole.Be provided with the first operating stem 18, first operating stem 18 lower end in vertical holes and be provided with inclined-plane away from the first sour jujube bar 15 side.The position that the first described fixture block 16 upper side contacts with the first described operating stem 18 is provided with the triangular groove adapted with the first described operating stem 18 upper end, and described adapting refers to that triangular groove just can hold the lower end of the first operating stem 18.The upper end of vertical holes is provided with the first electromagnet 14, first operating stem 18 upper end and is provided with magnet 19, and the polarity of described magnet 19 upper end is identical with the polarity of the first described electromagnet 14 lower end.The first projection 21 is provided with towards the side of the first sour jujube bar 15 in the middle of first operating stem 18, on tooth bar 7 near the first projection 21 position on hinged direction finding block 20, in order to detect tooth bar 7 moving direction, direction finding block 20 has wedge angle towards the first sour jujube bar 15 side, direction finding block 20 is provided with away from the first sour jujube bar 15 side the below that the second projection 22, second projection 22 is positioned at the first projection 21.

Tooth bar 7 can be blocked by ratchet 23, first sour jujube bar 15 structure, prevent it from arbitrarily falling.After first electromagnet 14 is energized, due to homopolar-repulsion, magnet 19 and the first operating stem 18 move down.Because tooth bar 7 is metal or other close magnetic materials, after power-off, because magnet 19 can be adsorbed on the sidewall in its hole, place, so can not move up voluntarily.When first operating stem 18 moves down, pushed the first fixture block 16 away from the first sour jujube bar 15 end to by the acting in conjunction of the first inclined-plane, operating stem 18 lower end and groove, ratchet 23 no longer will block the first sour jujube bar 15, thus tooth bar 7 can fall; When tooth bar 7 moves down, the wedge angle of direction finding block 20 can be made upwards to rotate by the effect of the first sour jujube bar 15, when tooth bar 7 rises under the drive of motor 9, by the effect of the first sour jujube bar 15, direction finding block 20 wedge angle is rotated, second projection 22 is upwards rotated simultaneously, second projection 22 drives the first operating stem 18 to move up by the first projection 21, first fixture block 16 discharges, ratchet 23 can encounter the first sour jujube bar 15, thus tooth bar 7 can block after stopping by motor 9 at any time, prevents tooth bar 7 from falling voluntarily.

Embodiment two is a kind of medical aid, may be used for helping pregnant and lying-in women, the old and the weak patient or handicapped people to play seat.

As shown in Figure 3, described tooth bar 7 lower end is fixedly connected with an annulus 24.This embodiment's shell can be arranged in ceiling board or other devices, or with ceiling board etc. for shell, therefore Fig. 3 eliminates the concrete shape of shell.

Operating process is as follows: when user sits down, and by the annulus 24 of arm through tooth bar 7 lower end, annulus 24 is enclosed within oxter place, drives user slowly to sit down by this device.When user stands, by the annulus 24 of arm through tooth bar 7 lower end, actuating motor 9, drives user slowly to stand by this device.

Embodiment three is a kind of nursing assistant device, may be used for helping pregnant and lying-in women, the old and the weak patient or handicapped people have gone to toilet seat.

As shown in Figure 4, described lowering or hoisting gear main body is positioned at below floor, and described tooth bar 7 upper end is through the hole on floor, and expose floor, tooth bar 7 upper end is fixedly connected with armpit holder 25.Same, Fig. 4 eliminates the concrete shape of shell.Described motor 9 switch is positioned on the tooth bar 7 below armpit holder 25, is connected with motor 9 circuit by electric wire.

Operating process is as follows: when patient goes to toilet, and armpit holder 25 is placed in oxter, and under the effect of body weight, lowering or hoisting gear drives patient slowly to sit down.When patient stands, by the armpit holder 25 of arm through tooth bar 7 lower end, actuating motor 9, drives patient slowly to stand by this device.

Embodiment four is a kind of tutor auxiliary platform apparatus, for the lifting of screen of imparting knowledge to students, also may be used for the presentation screen lifting in commercial activity.

As shown in Figure 5,6, described lowering or hoisting gear is positioned at screen 26 rear, is fixedly connected with body of wall or other supporting structures, and described tooth bar 7 is fixedly connected with screen 26.

Also comprise stuck device in the present embodiment, described stuck device comprises the second sour jujube bar 27, and the second described sour jujube bar 27 is fixedly connected with housing 8, and the flank of tooth of the second sour jujube bar 27 is towards described tooth bar 7.Be provided with horizontal blind hole and vertical holes in described tooth bar 7, described horizontal blind hole opening is positioned at tooth bar 7 towards in the one side of the second sour jujube bar 27, and described vertical holes upper end is communicated with the middle part of horizontal blind hole, lower ending opening.Be provided with second fixture block 28, second fixture block 28 one end in horizontal hole to expose in hole, on the upside of bared end, be provided with inclined-plane.The second spring 29 is provided with between second fixture block 28 and the cecum of horizontal blind hole.Be provided with the second operating stem 30 in vertical holes, the second described operating stem 30 diameter equals the internal diameter of its place vertical holes, and the second operating stem 30 lower end is exposed, and upper end is provided with inclined-plane away from the second sour jujube bar 27 side.The position that the second described fixture block 28 downside contacts with the second described operating stem 30 is provided with the triangular groove adapted with the second described operating stem 30 upper end, and described adapting refers to that triangular groove just can hold the upper end of the second operating stem 30.

Operating process is as follows: when decline screen 26, presses on the second operating stem 30, is regained by the second fixture block 28 by the second operating stem 30, and the second operating stem 30 can not be rebounded under the frictional force effect of vertical holes.Under gravity, screen 26 slowly declines.

When rising screen 26, actuating motor 9, drives screen 26 slowly to rise by this device.

Embodiment five is a kind of bulk goods hopper, may be used for harbour, the loading of goods yard bulk cargo.

As shown in Figure 7,8, described bulk goods hopper comprises funnel 34, supporting frame 35, rubber skirtboard 37, lowering or hoisting gear and stuck device.

By supporting frame 35, funnel 34 is propped up.Described funnel 34 feed opening place is provided with the shaft-like buffer 39 of horizontal positioned, effectively controlling goods and spills speed and flow, alleviating the impact to having bad luck vehicle tank.Lower end is provided with fixed skirt 36.Described rubber skirtboard 37 is nested in fixed skirt 36.Described rubber skirtboard 37 moves up and down by lowering or hoisting gear, thus can adapt to the automobile of various different heights, by the acting in conjunction of fixed skirt 36 and rubber skirtboard 37, make not overflow during Container Loading, bulk cargo floating dust can be blocked simultaneously, decrease airborne dust, reduce atmospheric pollution.

As shown in Figure 9, described lowering or hoisting gear shell 8 is fixedly connected with funnel 34.Described tooth bar 7 is fixedly connected with described rubber skirtboard 37.

Described stuck device comprises the 3rd sour jujube articles 31, and described the 3rd sour jujube articles 31 is fixedly connected with described fixed skirt 36, and the flank of tooth of the 3rd sour jujube articles 31 is towards described tooth bar 7.Be provided with horizontal blind hole in described tooth bar 7, described horizontal blind hole opening is positioned at tooth bar 7 towards in the one side of the 3rd sour jujube articles 31.Be provided with the 3rd fixture block 32 in horizontal hole, the 3rd described fixture block 32 is magnetic fixture block, is specifically as follows magnetic metallic material or one end is fixedly connected with a magnet, and the 3rd fixture block 32 is provided with inclined-plane near the 3rd sour jujube article 31 end upper sides.The cecum place of described horizontal blind hole is provided with the second electromagnet 33.

After the second described electromagnet 33 is energized, when the second electromagnet 33 and the 3rd fixture block 32 are identical to opposite polarity, 3rd fixture block 32 is subject to repulsion and is pushed out, and rubber skirtboard 37 can be blocked, prevent it from arbitrarily falling by the 3rd fixture block 32, the 3rd sour jujube article 31 structures.When needing rubber skirtboard 37 to fall, second electromagnet 33 is passed into back current, second electromagnet 33 reversing, the 3rd described fixture block 32 is subject to suction, be sucked in hole, thus rubber skirtboard 37 can free fall, when falling to correct position, second electromagnet 33 is passed into forward current the 3rd fixture block 32 to be released, rubber skirtboard 37 is blocked.

Operating process is as follows: during use, first by below automobile running to feed opening, according to the height of automobile, by gravity decline rubber skirtboard 37, along with goods in compartment is piled up, by the height of lowering or hoisting gear Raised rubber skirtboard 37 gradually, until loaded.

Embodiment six is medical equipment, specifically for the lifting of sick bed bed board.

As shown in Figure 10,11, the present embodiment comprises a body 40, described lowering or hoisting gear and stuck device.

Described bed body 40 is provided with fixed bed board 44 and lifting bed board 42, and lifting bed board 42 is hinged by a side and fixed bed board 44.Bed board has crossbeam 43.For ease of describing, the direction at setting lifting bed board 42 place is front, after the direction at fixed bed board 44 place is.

Described connecting rod 41 two ends are hinged with described lifting bed board 42 and tooth bar 7 respectively.Described tooth bar 7 horizontal positioned.Described crossbeam 43 is provided with the hole along bed body 40 fore-and-aft direction trend, and described tooth bar 7 passes in hole.

As shown in figure 12, described stuck device is specially: described tooth bar 7 is respectively provided with a horizontal hole moved towards along bed body 40 width with crossbeam 43, is provided with the 4th fixture block the 46, four fixture block 46 one end and exposes, be provided with inclined-plane on rear side of bared end in the horizontal hole of tooth bar 7.4th fixture block 46 the other end is provided with the 3rd spring 47.The horizontal hole of described crossbeam 43 is wherein connected with the hole at crossbeam 43 upper rack 7 place one end, and be provided with the 3rd operating stem the 45, three operating stem 45 one end in crossbeam 43 horizontal hole and can encounter tooth bar 7, the other end exposes in hole, is convenient to user's operation.

Operating process is as follows: after lifting bed board 42 rises, the 4th described fixture block 46 is stuck in the horizontal hole on crossbeam 43, thus is fixed by tooth bar 7.When being elevated bed board 42 and needing to fall, press the 3rd operating stem 45, promote the 4th fixture block 46, under gravity, by lowering or hoisting gear, lifting bed board 42 is slowly fallen.

When needs rise lifting bed board 42, actuating motor 9, moves after described tooth bar 7, by driving bed board slowly to rise by lowering or hoisting gear.

It should be noted that; particular of the present utility model has been described in detail the utility model; for a person skilled in the art, the various apparent change carried out it when not deviating from spirit and scope of the present utility model is all within protection domain of the present utility model.

Claims

1. a medical aid, is characterized in that: comprise tooth bar, motor, gear carrier, housing and multiple gear; Described tooth bar is vertically placed, and through housing, described tooth bar is meshed with a gear, and a gear and No. two gears form a duplicate gear jointly, and the axle of duplicate gear is arranged on described housing; Described motor output shaft connects No. three gears, and No. three gears are meshed with described No. two gears; The axle at described gear carrier and a gear, No. two gear places is hinged; Described motor is fixedly connected with gear carrier; The below of No. two gears is provided with No. four gears, and No. four gears are meshed with No. two gears, and No. four gears are fixedly connected with a coaxial star wheel; The axle of No. four gears and a star wheel is arranged on described housing; Described gear carrier is provided with intermeshing No. five gears and No. six gears, and No. five gears are fixedly connected with No. two coaxial star wheels and No. three star wheels respectively with No. six gears; Three described star wheels are positioned on same vertical plane, and No. two star wheels and No. three star wheel maximum radius sums are less than No. five gears and No. six gear compound graduation circle radius sums; Described tooth bar lower end is fixedly connected with an annulus.

2. a kind of medical aid according to claim 1, is characterized in that: a described gear diameter is less than No. two gear diameters, and No. two gear diameters are greater than No. four gear diameters, and No. four gear diameters are less than the maximum diameter of a star wheel.