CN210114215U

CN210114215U - But other chair of self return's machinery bed

Info

Publication number: CN210114215U
Application number: CN201821149400.9U
Authority: CN
Inventors: 陈宁静; 陈梦楠; 陈日康
Original assignee: Quanzhou Medical College
Current assignee: Quanzhou Medical College
Priority date: 2018-07-20
Filing date: 2018-07-20
Publication date: 2020-02-28
Anticipated expiration: 2028-07-20

Abstract

A mechanical bedside chair capable of automatically returning relates to the technical field of novel medical furniture and comprises a seat surface and a supporting part, wherein the upper end of the supporting part is connected with the seat surface, an elastic device is arranged between the upper end of the supporting part and the seat surface, and a first dynamic-breaking switch is arranged on the side surface of the elastic device; a return device arranged on the ground is arranged below the supporting part; the return device comprises a guiding walking device and a motor connected with the guiding walking device, the lower end of the supporting part is provided with a connecting part, and the connecting part is movably connected with the guiding walking device; the front end of the guide walking device is provided with a buffer layer and a second dynamic break switch existing in the buffer layer, and the first dynamic break switch and the second dynamic break switch are connected with the motor power supply circuit in series. The utility model has the advantages of thereby but self return reduces ward noise, mixed and disorderly degree, saves the accompanying and attending personnel simultaneously and moves the action etc.

Description

But other chair of self return's machinery bed

Technical Field

The utility model relates to a novel medical furniture technical field especially relates to a but other chair of mechanical bed of self return.

Background

In a hospital ward, the accompanying personnel of a patient use more bedside chairs for resting and accompanying as common four-leg chairs, and when the person leaves beside a hospital bed in the accompanying process, the condition that the accompanying personnel forget to return the chair frequently occurs, so that the environment in the ward is disordered, and the patient, the accompanying personnel and medical personnel are inconvenient to pass or rescue under emergency conditions. On the other hand, the bedside chair needs to be manually moved or pushed back to the original position, and on one hand, an attendant needs to carry out additional movement, which causes inconvenience; on the other hand, certain noise is generated during moving or pushing, so that the comfort level of the ward environment is reduced, and the rest and recovery of the patient are not facilitated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a but other chair of machinery bed of self return can solve the problem that exists among the above-mentioned background through the other chair of machinery bed that this can self return, thereby for the ward provides one kind but self return reduces mixed and disorderly degree in ward, ward noise, saves the other chair of user's removal action simultaneously.

To realize the purpose of the utility model, the utility model adopts the following technical scheme:

a mechanical bedside chair capable of automatically returning comprises a seat surface and a supporting part, wherein the upper end of the supporting part is connected with the seat surface, an elastic device is arranged between the upper end of the supporting part and the seat surface, and a first dynamic switch is arranged on the side surface of the elastic device; a return device arranged on the ground is arranged below the supporting part; the return device comprises a guiding walking device and a motor connected with the guiding walking device, the lower end of the supporting part is provided with a connecting part, and the connecting part is movably connected with the guiding walking device; the front end of the guide walking device is provided with a buffer layer and a second dynamic break switch existing in the buffer layer, and the first dynamic break switch and the second dynamic break switch are connected with the motor power supply circuit in series.

Therefore, the mechanical bedside chair capable of automatically returning is generally arranged on the side surface of a sickbed, and in an initial state that the mechanical bedside chair is not used, the mechanical bedside chair is located near the sickbed, so that the passing space in the sickroom is not influenced, the sitting surface provides a sitting part for an attendant to have an accompanying rest, the supporting part supports the cylindrical surface and is connected with the returning device to realize the returning of the bedside chair, and the guiding walking device and the connecting part realize relative movement under the driving action of the motor. The supporting part is located the direction running gear front end with the initial condition that the other chair of bed withdrawed when the buffer layer contacted, the usable shank's of user's seat application of force realization seat face edge the backward translation of direction running gear to can conveniently realize sitting down, accompanying and attending to etc. and leave the back at accompanying and attending to personnel, motor action drive direction running gear drives supporting part and seat face are got back to initial position and are realized automatic return. The first dynamic switch and the second dynamic switch and a power supply circuit of the motor form a circuit with conditional power supply: the dynamic break switch is a normally closed switch, when the dynamic break switch is at an initial position, the supporting part is in contact with the buffer layer and presses the second dynamic break switch, namely a power supply circuit of the motor is disconnected, the motor does not work, so that the seat surface is in a static state, the energy consumption is reduced, and the service life is prolonged; after a user sits down, the elastic device is pressed down by the gravity of the user, namely the sitting surface presses the first movable disconnecting switch downwards, at the moment, the sitting surface is pushed backwards, so that the second movable disconnecting switch is recovered to be closed, meanwhile, the first movable disconnecting switch is disconnected, the motor is also disconnected, does not work and does not self-lock, and the user can conveniently push the sitting surface; after the user leaves, the elastic device jacks up the seat surface, the first movable disconnecting switch is closed again, the motor is electrified to work, the seat surface is sent back to the initial position along the guiding walking device, when the seat surface returns to the initial position, the buffer layer plays a role in buffering, and meanwhile the supporting part is in contact with the second movable disconnecting switch to break the motor.

As a preferred aspect of the present invention, the support portion and the return device are disposed in parallel to each other on both sides of the seat surface below.

Thus, the support part forms support at two sides under the seat surface, and the stability of the sitting can be improved.

As a preferred aspect of the present invention, the support portion and the return means are provided with one set of the seat surface below and along the vertical central plane of the seat surface.

Therefore, the supporting part and the return device are located below the seat surface, the number of parts can be saved, and the production, manufacturing and use costs can be reduced.

As the utility model discloses a preferred, the rack that direction running gear set up for the level, connecting portion are for meshing in the gear of rack, the motor be directly link in the planetary gear motor of gear.

Therefore, the guide walking device moves mutually through the meshing relationship between the gear and the rack, and has the advantages of high transmission efficiency, easiness in maintenance and the like. The planetary gear motor has the advantage of small volume and is convenient to install and set.

As the utility model discloses a preferred, the lead screw that direction running gear set up for the level, connecting portion are for engaging in the ball nut of lead screw is vice, the motor be for connect in the planetary gear motor of lead screw tip.

Therefore, the guide walking device realizes mutual movement through the connection of the screw-nut pair, and the screw-nut pair transmission has the advantages of high transmission efficiency, fine micro-adjustment and the like. The planetary gear motor has the advantage of small volume and is convenient to install and set.

Preferably, the front of the returning device is provided with a tread surface.

Therefore, the treading surface provides a treading support plane for a user, particularly provides a force application support for the user when the user sits down and applies force to push the seat backwards, and simultaneously can prevent the user from treading the return device to cause damage.

As the utility model discloses a preferred, resilient means is including being located the first guide part of supporting part top surface, being located the second guide part of seat surface lower surface and locating the elastic component between first guide part and the second guide part.

Thereby, the first guide portion and the first guide portion are brought into a movable mutual positional relationship in which the direction and the distance are determined by fitting, shaft connection, or the like, and the elastic member such as a spring or the like effects positional restoration therebetween.

As the utility model discloses a preferred, return means still including wrap up in the cover body in the direction running gear outside, cover body top surface is equipped with and is located the cell body of direction running gear top, the connecting portion both sides be equipped with the guide way of cell body side gomphosis.

Therefore, the gear rack connection or the lead screw nut pair connection needs a relatively clean use environment and needs certain protection, the cover body is used for protecting the guide walking device, the groove body is used for supplying the support part to reciprocate, and the guide groove and the side face of the groove body form embedded guide.

Preferably, the two side faces of the tank body are respectively provided with a shielding part which horizontally extends into the tank body.

Therefore, the shielding part such as a brush and the like can shield external fine garbage and dust to keep the interior of the return device clean, and meanwhile, the action of the supporting part cannot be obstructed.

As a preferred aspect of the present invention, the seat surface is further connected to at least one of a backrest and an armrest.

Therefore, the seat surface can further realize the functions of back leaning, hand leaning and the like through the backrest and the armrests.

The beneficial effects of the utility model reside in that:

1. the on-off control of the motor circuit is realized through the self action of a user, the control mode is simple, and no additional operation is needed;

2. the transmission efficiency is high and energy is saved during working;

3. the buffer device has good buffer function, expansion function and isolation function to external impurities, and is long in service life and not easy to damage.

Drawings

Fig. 1 is a three-dimensional schematic view of a first embodiment of the present invention;

fig. 2 is a schematic structural view of a return device according to a first embodiment of the present invention;

fig. 3 is a schematic view of an elastic device according to a first embodiment of the present invention;

fig. 4 is a three-dimensional schematic diagram of a second embodiment of the present invention;

fig. 5 is a schematic structural view of a return device according to a second embodiment of the present invention;

fig. 6 is a schematic cross-sectional view of an elastic device according to a second embodiment of the present invention;

fig. 7 is a schematic view of a connection structure of a motor power supply circuit according to the present invention;

the items in the figure are respectively: the seat comprises a seat surface 1, a backrest 11, an armrest 12, a supporting part 2, a connecting part 21, a guide groove 211, an elastic device 3, a first guide part 31, a second guide part 32, an elastic part 33, a first dynamic-breaking switch 41, a second dynamic-breaking switch 42, a return device 5, a guiding walking device 51, a motor 52, a cover body 53, a groove body 531, a shielding part 532, a treading surface 6 and a buffer layer 7.

Detailed Description

The present invention is described in detail below with reference to the attached drawings:

example one

As shown in fig. 1, a mechanical bedside chair capable of automatically returning comprises a seat surface 1 and a supporting part 2, wherein the upper end of the supporting part 2 is connected with the seat surface 1, an elastic device 3 is arranged between the upper end of the supporting part 2 and the seat surface 1, and the side surface of the elastic device 3 is provided with a first movable disconnecting switch 41; a return device 5 arranged on the ground is arranged below the support part 2; the return device 5 comprises a guiding walking device 51 and a motor 52 connected with the guiding walking device 51, the lower end of the support part 2 is provided with a connecting part 21, and the connecting part 21 is movably connected with the guiding walking device 51; the front end of the guiding walking device 51 of the return device 5 is transversely welded with a steel beam, the surface of the steel beam is wrapped with a buffer layer 7 made of rubber, the surface of the buffer layer 7 is provided with a round hole, and a second dynamic-breaking switch 42 is installed in the round hole.

As shown in fig. 7, in the present embodiment, the first dynamic disconnection switch 41 and the second dynamic disconnection switch 42 are connected in series with the power supply circuit of the motor 52. The first and second dynamic disconnection switches 41 and 42 form a conditional power supply circuit with the power supply circuit of the motor 52: the dynamic break switch is a normally closed switch, when the dynamic break switch is at an initial position, the supporting part 2 is contacted with the buffer layer 7 and presses the second dynamic break switch 42, namely, a power supply circuit of the motor 52 is disconnected, the motor 52 does not work, so that the seat surface is in a static state, the energy consumption is reduced, and the service life is prolonged; after a user sits down, the elastic device 3 is pressed down by the gravity of the user, namely the seat surface 1 presses the first movable disconnecting switch 41 downwards, at the moment, the second movable disconnecting switch 42 is recovered to be closed by pushing the seat surface 1 backwards, meanwhile, the first movable disconnecting switch 41 is disconnected, the motor 52 is disconnected, does not work and does not self-lock, and the user can conveniently push the seat surface; after the user leaves, the elastic device 3 jacks up the seat surface 1, the first movable disconnecting switch 41 is closed again, the motor 52 is electrified to work, the seat surface 1 is sent back to the initial position along the guiding walking device 51, when the seat surface returns to the initial position, the buffer layer 7 plays a role in buffering, and meanwhile the support part 2 is in contact with the second movable disconnecting switch 42 to disconnect the motor 52.

In this embodiment, the supporting portion 2 and the returning device 5 include two sets disposed in parallel at two sides below the seat surface 1. The supporting part 2 is a square frame, the top of the frame is connected with the seat surface 1, and the bottom is connected with a return device 5.

As shown in fig. 2, in the present embodiment, the guiding and traveling device 51 is a rack horizontally disposed, the connecting portion 21 is a gear engaged with the rack, the gear is coupled to the frame of the supporting portion 2 through a key shaft, and the motor 52 is a planetary reduction motor 52 directly connected to the gear. The planetary gear motor is positioned in the middle of the frame bodies of the two supporting parts 2, so that the planetary gear motor is hidden in the whole seat, and the external volume is reduced.

In this embodiment, a tread surface 6 is provided in front of the return device 5. The tread surface 6 is a plate with a patterned surface attached in front of the return device 5, and in other embodiments may be a carpet or other similar surface that the patient room has itself.

As shown in fig. 3, in the present embodiment, the elastic means 3 includes a first guide portion 31 located on the top surface of the support portion 2, a second guide portion 32 located on the lower surface of the seat surface 1, and an elastic member 33 disposed between the first guide portion 31 and the second guide portion 32. The first guide part 31 is three steel sheets with waist-shaped grooves, which sequentially extend upwards from the top surface of the support part 2 on the same plane, the second guide part 32 is three steel sheets with the same waist-shaped grooves, which correspond to the first guide part 31 and extend downwards from the lower surface of the seat surface 1, and the waist-shaped grooves of the two groups of steel sheets are mutually overlapped and connected through a pin shaft. A cylindrical spring is arranged between the steel sheets as an elastic part 33, the upper end of the cylindrical spring is abutted against the lower surface of the seat surface 1, and the lower end of the cylindrical spring is abutted against the top surface of the frame of the support part 2.

In this embodiment, the returning device 5 further includes a cover 53 made of a steel plate wrapped outside the guiding traveling device 51, the cover 53 is an inverted L shape with two opposite sides, so that the guiding traveling device 51 is accommodated in a space formed by combining the two inverted L shapes, the top surface of the cover 53 is an interval space between two inverted L-shaped horizontal plates, namely, a groove body 531 above the guiding traveling device 51 is formed, and guide grooves 211 embedded with the side surfaces of the groove body 531 are formed in two sides of the connecting portion 21.

In this embodiment, two side surfaces of the slot 531 are respectively fixed with a shielding portion 532 formed by a plastic brush extending horizontally into the slot 531.

In this embodiment, the seat surface 1 is further connected with a backrest 11 and two armrests 12 at both sides.

Example two

The technical solution of the second embodiment is similar to that of the first embodiment, and the difference is that:

as shown in fig. 4, in this embodiment, the supporting portion 2 and the returning device 5 are a set disposed below the seat surface 1 and are symmetrical along a vertical center plane of the seat surface 1, and the supporting portion 2 is a cylinder.

As shown in fig. 5, in the present embodiment, the traveling guide 51 is a horizontally disposed screw, both ends of the screw are provided with support bearings, the connecting portion 21 is a ball nut pair which is positioned at the bottom of the column of the support portion 2 and engages with the screw, and the motor 52 is a planetary gear motor 52 connected to the rear end of the screw. The lead screw passes through the supporting part 2, and the supporting part 2 is also provided with guide wheels which are contacted with the guide running gear on two sides of the lead screw, thereby reducing the friction force of the running, reducing the pressure born by the lead screw and improving the running stability of the lead screw.

As shown in fig. 6, in the present embodiment, the elastic device 3 includes a first guiding portion 31 located on the top surface of the column of the supporting portion 2, a second guiding portion 32 located on the lower surface of the seat surface 1, and an elastic member 33 disposed between the first guiding portion 31 and the second guiding portion 32. The first guide portion 31 is a post hole recessed downward from the top surface of the post of the support portion 2 such that the upper post holes are arranged in a circular array, the second guide portion 32 is a post corresponding to the above post hole and having a diameter smaller than that of the post hole, and a cylindrical spring is provided between the post and the post hole as an elastic member 33.

The above embodiments are only described for the preferred embodiments of the present invention, and are not intended to limit the concept and scope of the present invention, and the various modifications and improvements made by the ordinary person in the art without departing from the design concept of the present invention all fall into the protection scope of the present invention.

Claims

1. A mechanical bedside chair capable of returning automatically comprises a seat surface (1) and a supporting part (2), and is characterized in that the upper end of the supporting part (2) is connected with the seat surface (1), an elastic device (3) is arranged between the upper end of the supporting part (2) and the seat surface (1), and a first dynamic-breaking switch (41) is arranged on the side surface of the elastic device (3); a return device (5) arranged on the ground is arranged below the supporting part (2); the return device (5) comprises a guiding walking device (51) and a motor (52) connected with the guiding walking device (51), a connecting part (21) is arranged at the lower end of the supporting part (2), and the connecting part (21) is movably connected with the guiding walking device (51); the front end of the guide walking device (51) is provided with a buffer layer (7) and a second dynamic break switch (42) existing in the buffer layer (7), and the first dynamic break switch (41) and the second dynamic break switch (42) are connected with a power supply circuit of the motor (52) in series.

2. The mechanical bedside chair capable of automatically returning according to claim 1, wherein the supporting portion (2) and the returning device (5) comprise two sets which are arranged on two sides below the seat surface (1) in parallel.

3. The mechanical bedside chair capable of automatically returning according to claim 1, wherein the supporting portion (2) and the returning device (5) are a set disposed below the seat surface (1) and are symmetrical along a vertical center plane of the seat surface (1).

4. The mechanical bedside chair capable of returning automatically as claimed in claim 2 or 3, wherein the guiding walking device (51) is a rack arranged horizontally, the connecting part (21) is a gear engaged with the rack, and the motor (52) is a planetary gear motor (52) directly connected to the gear.

5. The mechanical bedside chair capable of returning automatically as claimed in claim 2 or 3, wherein the guiding walking device (51) is a horizontally arranged screw, the connecting part (21) is a ball nut pair engaged with the screw, and the motor (52) is a planetary reduction motor (52) connected to the end of the screw.

6. The mechanical bedside chair capable of automatically returning according to claim 1, wherein a treading surface (6) is arranged in front of the returning device (5).

7. The mechanical bedside chair capable of returning automatically as claimed in claim 1, wherein the elastic means (3) comprises a first guide portion (31) located on the top surface of the support portion (2), a second guide portion (32) located on the lower surface of the seat surface (1), and an elastic member (33) disposed between the first guide portion (31) and the second guide portion (32).

8. The mechanical bedside chair capable of automatically returning as claimed in claim 1, wherein the returning device (5) further comprises a cover body (53) wrapped outside the guiding walking device (51), a groove body (531) located above the guiding walking device (51) is arranged on the top surface of the cover body (53), and guide grooves (211) embedded with the side surfaces of the groove body (531) are arranged on two sides of the connecting portion (21).

9. The mechanical bedside chair capable of returning automatically as claimed in claim 8, wherein two side surfaces of the groove body (531) are respectively provided with a shielding part (532) extending horizontally into the groove body (531).

10. The self-returning mechanical bedside chair according to claim 1, wherein at least one of a backrest (11) and an armrest (12) is further connected to the seat (1).