WO2019184290A1

WO2019184290A1 - Liftable bed

Info

Publication number: WO2019184290A1
Application number: PCT/CN2018/109338
Authority: WO
Inventors: 刘瑷欣
Original assignee: 刘瑷欣
Priority date: 2018-03-26
Filing date: 2018-10-08
Publication date: 2019-10-03
Also published as: CN108433431A; CN108433431B

Abstract

A liftable bed comprises a storage compartment (10), a bed board (30), and a lifting unit (20). The bed board (30) is disposed at an opening of the storage compartment (10) and can be horizontally raised or lowered by the lifting unit (20). The lifting unit (20) comprises a cylindrical body (21), a lifting rod (22), and a winding spring (40). The liftable bed has a simple structure, and allows users to remove or store an article from any angle of the storage compartment (10). Raising or lowering the bed board (30) does not cause articles on the bed to pile up, thereby eliminating the need to reorganize the articles. A spring component of the winding spring (40) is specially configured, such that the supporting force of the winding spring (40) gradually increases during descending of the bed board (30), thereby generating natural cushioning resistance, reducing a descending speed of the bed board (30), preventing damage to a surface of the bed due to the impact of the bed board (30) against the storage compartment (10) at an excessive speed, and preventing injury caused by the descending bed board (30).

Description

Liftable bed

Technical field

The invention relates to the technical field of furniture, in particular to a liftable bed in which a bed board is lifted or dropped to facilitate picking up and dropping of articles from the bed box.

Background technique

At present, the bed body used in many households has a storage function, that is, the bed body generally includes a bed box for accommodating the sundries, and the bed plate of the bed body is placed at the upper edge of the bed box.

In order to facilitate lifting the bed and taking the material from the bed, a pneumatic spring is usually provided to assist the human to lift the tail of the bed, so that the bed is placed at an inclination of about 30° to 45°, so that people can take objects from the raised end or Place items.

However, the disadvantage of this method is that the head of the bed cannot be lifted, which makes it difficult for people to take the items in the bed box near the head of the bed; at the same time, since the head of the bed will wear with the headboard when rotating, In the destruction of the bed, most manufacturers divide the bed into a non-reversible plate near the bed and a reversible plate near the end of the bed, thereby sacrificing a large part of the accommodation space of the bed, resulting in wasted space.

Summary of the invention

It is an object of the present invention to provide a liftable bed that addresses one or several of the technical problems found in the prior art.

In order to solve the above technical problems, the present invention provides a liftable bed comprising: a bed box, a bed board and a lifting unit;

The inside of the bed box is provided with an accommodation space, and an opening is arranged above;

The two opposite sides of the bed box are respectively provided with at least two lifting units arranged side by side;

The bed board is horizontally raised or dropped by the lifting unit at an opening of the bed box;

The lifting unit includes a cylindrical body, a lifting rod and a winding spring;

The cylindrical body is erected and abuts against the inner side of the side plate of the bed box; the sliding body is provided with a sliding groove in the height direction, and an outlet connecting the inner and outer sides of the sliding groove is arranged above the cylindrical body;

a lower end of the lifting rod is disposed in the sliding slot, and an upper end of the lifting rod extends from the outlet to be connected with the bed plate;

The winding spring is disposed in a sliding groove, and the winding spring is wound by a sheet-shaped spring piece, and both ends of the winding spring include a first reel portion and a second reel portion which are disposed above and below. The first reel portion is coupled to the cylindrical body, and the second reel portion is rotatably disposed on the elevating rod, and a spring force of the wrap spring tends to force the elevating rod to move upward. Further providing a supporting force for supporting the bed board;

The spring piece includes an execution section that provides an effective supporting force within a maximum stretch range of the wrap spring; the execution section is fully expanded to be an upper width and a lower trapezoid, and when the bed is dropped, the second roll The tubular portion is gradually rolled up, and the width of the portion of the spring piece performing the supporting force is gradually widened, and the supporting force provided by the winding spring is gradually increased to slow down the falling speed of the bed plate;

The first reel portion is rotatably disposed on the cylindrical body by a rotating shaft; the first reel portion is fitted on a rotating shaft, and in the circumferential direction of the rotating shaft, the first reel portion and the rotating shaft a fixed connection; the rotating shaft is rotatably disposed on the mounting hole of the cylindrical body, and a locking mechanism for locking the rotating shaft is disposed between the rotating shaft and the cylindrical body;

Rotating or unwinding the first reel portion by rotating the rotating shaft, the second reel portion is synchronously unfolded or rolled up under the action of its own spring force, and the width of the portion of the spring piece performing the supporting force on the segment is relatively reduced or The increase, and thus the support force provided by the wrap spring, is reduced or increased for the support requirements of different weights of the bed and mattress.

In daily use, the bed plate is placed at the edge of the opening of the bed box. When the bed box needs to be opened, the bed plate can be lifted by force, the bed plate is raised horizontally to the set height, and the bed plate and the bed box opening are formed to be taken and placed. The passage of the object, the passage has no dead angle, and the development degree is uniform, which is convenient for people to take and place articles from any angle. When the bed is raised or dropped, it does not cause the items on the bed to pile up together, saving time after finishing.

More importantly, due to the special arrangement of the spring leaf of the winding spring, during the falling process of the bed, the supporting force of the winding spring is gradually increased, forming a natural cushioning resistance, reducing the falling speed of the bed plate, and avoiding the bed plate being too fast. The speed hitting the bed box causes damage to the surface of the bed and prevents the bed from falling and injuring people.

In addition, by adjusting the working position of the spring piece on the wrap spring, the supporting force of the wrap spring can be adjusted to meet the support requirements of different bed plates and mattress weights.

Wherein, when the stretched length of the wrap spring reaches the maximum limit, the portion of the spring piece between the first reel portion and the second reel portion is an execution section, and the wrap spring is unfolded within the execution range or the support force is rolled up. Regular changes, the winding spring will not be destroyed.

At present, the thickness and material of the spring piece of the wrap spring are uniform, and the spring force (supporting force) provided by the wrap spring during the unwinding or rolling process when the execution section is fully deployed is a trapezoidal shape with an upper width and a lower width. ) varies linearly, or gradually increases or decreases gradually.

Further, the maximum spring force (supporting force) provided by the wrap spring is equal to the total weight of the bed and the mattress, saving manpower for lifting the bed to open the bed box.

Further, the wrap spring is formed by winding a plurality of pieces of the spring pieces that are placed close to each other.

Further, one end of the rotating shaft is provided with a hand wheel or a rocker for rotating the rotating shaft.

Further, the locking mechanism is an elastic clamp disposed on the cylindrical body, and an elastic clamp is set on the rotating shaft, and an elastic force of the elastic clamp holds the rotating shaft to generate a large enough friction torque to The rotation of the rotating shaft is prevented from being caused by the pulling force of the second reel portion; the rotating shaft is rotated by the external force against the friction torque of the elastic band to roll up or unfold the first reel portion.

Of course, the locking mechanism has many forms, such as a pin body, and the pin body is slidably disposed on the cylindrical body along a radial direction of the rotating shaft, and a compression spring is disposed between the pin body and the cylindrical body, and the pin The body tends to be inserted into the card slot on the rotating shaft by the action of the compression spring. The shaft can be locked when the pin body is inserted into the card slot. Alternatively, the locking mechanism is a fastener such as a compression nut that is fitted at one end of the rotating shaft. The tightening nut can lock the rotating shaft, loosen the nut, and the rotating shaft can rotate freely.

Further, two opposite lifting units are respectively disposed on opposite sides of the bed box; the four lifting units are arranged in a matrix.

Further, an electric telescopic rod is disposed in the bed box, and the electric telescopic rod is vertically disposed for raising or dropping the bed board.

Further, a control switch for the telescopic operation of the electric telescopic rod is disposed outside the bed box.

Further, the utility model further includes a support rod, the support rod is hingedly connected to the bed box at one end, and after the bed board is raised, the two ends of the support rod abut against the bed board and the bed box respectively for supporting the residence The bed plate prevents the bed from falling.

The invention has simple structure and is convenient for people to take and place articles from any angle of the bed box. When the bed plate is lifted or dropped, the articles on the bed are not piled up together, and the finishing time after the event is saved. More importantly, due to the special arrangement of the spring leaf of the winding spring, during the falling process of the bed, the supporting force of the winding spring is gradually increased, forming a natural cushioning resistance, reducing the falling speed of the bed plate, and avoiding the bed plate being too fast. The speed hitting the bed box causes damage to the surface of the bed and prevents the bed from falling and injuring people.

DRAWINGS

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions of the prior art, the drawings used in the specific embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

1 is a schematic structural view of a liftable bed provided by an embodiment of the present invention;

2 is a schematic structural view of a lifting unit according to an embodiment of the present invention;

3 is a schematic structural view of a winding spring according to an embodiment of the present invention;

4 is a schematic structural view of the winding spring after being fully deployed in the embodiment of the present invention.

detailed description

The technical solutions of the present invention will be clearly and completely described in the following with reference to the accompanying drawings. It is obvious that the described embodiments are a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

In the description of the present invention, it is to be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. The orientation or positional relationship of the indications is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of the description of the invention and the simplified description, rather than indicating or implying that the device or component referred to has a specific orientation, in a specific orientation. The construction and operation are therefore not to be construed as limiting the invention. Moreover, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components. The specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.

The invention will be further explained below in conjunction with specific embodiments.

Example 1

As shown in FIG. 1 , the present invention provides a liftable bed comprising: a bed box 10 , a bed board 30 and a lifting unit 20 .

The bed box 10 is internally provided with an accommodating space, and an opening is disposed at an upper portion; at two opposite sides of the bed box 10 respectively, at least two lifting units 20 are arranged at intervals; the bed board 30 can be passed through the lifting unit 20 The opening of the bed box 10 is horizontally raised or dropped.

As shown in FIG. 2, the lifting unit 20 includes a cylindrical body 21, a lifting rod 22, and a winding spring 40.

The cylindrical body 21 is erected and abuts against the inner side of the side plate of the bed box 10; a sliding groove is arranged in the height direction of the cylindrical body 21, and an outlet connecting the inside and the outside of the sliding groove is disposed above the cylindrical body 21; The lower end of the lifting rod 22 is vertically disposed in the sliding groove, and the upper end of the lifting rod 22 is extended from the outlet to be connected to the bed plate 30.

The wrap spring 40 is disposed in a chute, and the wrap spring 40 is wound by a sheet-like spring piece. As shown in FIG. 3, both ends of the wrap spring include a first reel portion 41 and a second reel portion 42 which are vertically disposed, and the first reel portion 41 is connected to the cylindrical body 21, A two-volume portion 42 is rotatably disposed on the lifting rod 22, and the spring force of the winding spring 40 tends to force the lifting rod 22 to move upward, thereby providing a supporting force for supporting the bed board 30.

As shown in FIG. 4, the spring piece includes an execution section 43 that provides an effective supporting force within a maximum stretch range of the wrap spring 40; the execution section 43 is fully expanded to have an upper width and a lower trapezoidal shape, When the bed 30 is dropped, the second reel portion 42 is gradually rolled up, and the width of the portion of the spring piece performing segment 43 providing the supporting force is gradually widened, and the supporting force provided by the wrap spring 40 is gradually increased to slow down the bed plate. The falling speed of 30.

More preferably, the sliding slot is provided with a sliding rail, and the lifting rod is arranged on the cylindrical body by the sliding rail. The sliding plate generally comprises an orbital rail, a moving rail, a plurality of balls and a ball cage, and the lifting rod and the lifting rod The moving rail is fixedly connected, and the orbital rail is fixedly connected to the cylindrical body. The second reel portion 42 is preferably rotatably disposed at the lower end of the elevating rod by a shaft body or a spring seat.

Wherein, when the stretched length of the wrap spring 40 reaches the maximum limit, the portion of the spring piece between the first reel portion 41 and the second reel portion 42 is the execution segment 43, and the wrap spring 40 is deployed within the range of the execution segment 43. Or the rolling support force changes regularly, and the winding spring 40 is not broken. At present, the thickness and material of the spring piece of the wrap spring 40 are uniform, and the spring force provided by the wrap spring 40 during the unwinding or rolling process when the execution section 43 is fully deployed is a trapezoid having an upper width and a lower width. (Supporting force) changes linearly, or gradually increases or decreases gradually.

In practical applications, the maximum spring force (supporting force) provided by the wrap spring 40 is approximately equal to the total weight of the bed 30 and the mattress 31, saving power for lifting the bed 30 to open the bed box 10.

The wrap spring 40 is formed by winding a plurality of pieces of the spring pieces that are placed in close contact with each other.

In daily use, the bed board 30 is placed at the mouth of the opening of the bed box 10. When the bed box 10 needs to be opened, the bed board 30 can be lifted up, the bed board 30 is horizontally raised to the set height, and the bed board 30 and the bed box 10 are 10 A passage for taking and releasing objects is formed between the openings, and the passage has no dead angle, and the development degree is uniform, so that people can pick and place articles from any angle. When the bed board 30 is lifted or dropped, it does not cause the items on the bed to pile up together, saving the finishing time after the event.

More importantly, due to the special arrangement of the spring piece of the wrap spring 40, during the falling of the bed 30, the supporting force of the wrap spring 40 is gradually increased to form a natural cushioning resistance, reducing the falling speed of the bed 30, and avoiding the bed plate. 30 hits the bed box 10 at a too fast speed, causing damage to the surface of the bed, and also avoids pinching or stabbing the user when the bed is dropped.

Especially when the child is present, the child likes to play in the bed box, and the bed of the existing bed is more cumbersome and pitched. When falling, the clamping force of the bed and the bed can easily lead to the fracture and even life of the child. Danger.

In the present application, the bed board is supported by the winding spring, and the actual falling and closing is relatively gentle, and the inertia is small. Even if the child is in the bed box, the child will not be injured, and the child can be lifted by simply pushing the bed. Start and then escape from the bed.

In the present embodiment, two opposite lifting units 20 are respectively disposed on opposite sides of the bed box 10; the four lifting units 20 are arranged in a matrix. Of course, the number of lifting units can also be set according to actual support needs, such as six or eight and so on.

In addition, an electric telescopic rod (not shown) is disposed in the bed box 10, and the electric telescopic rod is vertically disposed to raise or drop the bed board 30. A control switch for telescopic operation of the electric telescopic rod is disposed outside the bed box 10.

Alternatively, manual support is achieved by providing a support rod (not shown) which is hingedly connected to the bed box 10 at one end, and after the bed board 30 is raised, the two ends of the support rod abut against the bed board 30 and The bed box 10 is used to support the bed board 30 to prevent the bed board 30 from falling.

Example 2

This embodiment is a more optimized improvement made on the basis of Embodiment 1, and the specific improvement is as follows:

The first reel portion 41 is rotatably disposed on the cylindrical body 21 via a rotating shaft (not shown); the first reel portion 41 is fitted on the rotating shaft, in the circumferential direction of the rotating shaft, a reel portion 41 is fixedly connected to the rotating shaft; a rotating shaft is rotatably disposed on the mounting hole of the cylindrical body 21, and a locking mechanism for locking the rotating shaft is disposed between the rotating shaft and the cylindrical body 21. Agency (not shown).

When the first reel portion 41 is rolled up or unfolded by rotating the rotating shaft, the second reel portion 42 is simultaneously unfolded or rolled up under the action of its own spring force, and the width of the portion of the spring piece performing segment 43 providing the supporting force is relatively The reduction or increase, and thus the support force provided by the wrap spring 40, is reduced or increased for the support requirements of different weights of the bed and mattress.

One end of the rotating shaft may be provided with a hand wheel or a rocker for rotating the rotating shaft.

The locking mechanism is an elastic clamp provided on the cylindrical body 21, and the elastic clamp is set on the rotating shaft, and the elastic force of the elastic clamp holds the rotating shaft to generate a large enough friction torque to prevent The rotating shaft is rotated by the pulling force of the second reel portion 42; the rotating shaft can be rolled up or unfolded by the external force against the friction torque of the elastic band.

Of course, the locking mechanism has many forms, such as a pin body, and the pin body is slidably disposed on the cylindrical body 21 along the radial direction of the rotating shaft, and a compression spring is disposed between the pin body and the cylindrical body 21. The pin body tends to be inserted into the card slot on the rotating shaft under the action of the compression spring. The shaft can be locked when the pin body is inserted into the card slot. Alternatively, the locking mechanism is a fastener such as a compression nut that is fitted at one end of the rotating shaft. The tightening nut can lock the rotating shaft, loosen the nut, and the rotating shaft can rotate freely.

Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

A liftable bed, characterized by comprising: a bed box, a bed board and a lifting unit;

The inside of the bed box is provided with an accommodation space, and an opening is arranged above;

The two opposite sides of the bed box are respectively provided with at least two lifting units arranged side by side;

The bed board is horizontally raised or dropped by the lifting unit at an opening of the bed box;

The lifting unit includes a cylindrical body, a lifting rod and a winding spring;

The cylindrical body is erected and abuts against the inner side of the side plate of the bed box; the sliding body is provided with a sliding groove in the height direction, and an outlet connecting the inner and outer sides of the sliding groove is arranged above the cylindrical body;

a lower end of the lifting rod is disposed in the sliding slot, and an upper end of the lifting rod extends from the outlet to be connected with the bed plate;

The winding spring is disposed in a sliding groove, and the winding spring is wound by a sheet-shaped spring piece, and both ends of the winding spring include a first reel portion and a second reel portion which are disposed above and below. The first reel portion is coupled to the cylindrical body, and the second reel portion is rotatably disposed on the elevating rod, and a spring force of the wrap spring tends to force the elevating rod to move upward. Further providing a supporting force for supporting the bed board;

The spring piece includes an execution section that provides an effective supporting force within a maximum stretch range of the wrap spring; the execution section is fully expanded to be an upper width and a lower trapezoid, and when the bed is dropped, the second roll The tubular portion is gradually rolled up, and the width of the portion of the spring piece performing the supporting force is gradually widened, and the supporting force provided by the winding spring is gradually increased to slow down the falling speed of the bed plate;

The first reel portion is rotatably disposed on the cylindrical body by a rotating shaft; the first reel portion is fitted on a rotating shaft, and in the circumferential direction of the rotating shaft, the first reel portion and the rotating shaft a fixed connection; the rotating shaft is rotatably disposed on the mounting hole of the cylindrical body, and a locking mechanism for locking the rotating shaft is disposed between the rotating shaft and the cylindrical body;

Rotating or unwinding the first reel portion by rotating the rotating shaft, the second reel portion is synchronously unfolded or rolled up under the action of its own spring force, and the width of the portion of the spring piece performing the supporting force on the segment is relatively reduced or The increase, and thus the support force provided by the wrap spring, is reduced or increased for the support requirements of different weights of the bed and mattress.
The liftable bed of claim 1 wherein said wrap spring provides a maximum spring force equal to the total weight of the bed and mattress.
A liftable bed according to claim 1, wherein said wrap spring is wound by a plurality of said leaf springs disposed in close contact with each other.
A liftable bed according to claim 1, wherein one end of said rotating shaft is provided with a hand wheel or a rocker for rotating said rotating shaft.
The liftable bed according to claim 1, characterized in that two opposite lifting units are respectively disposed on opposite sides of the bed box; the four lifting units are arranged in a matrix.
The liftable bed according to claim 1, wherein an electric telescopic rod is disposed in the bed box, and the electric telescopic rod is vertically disposed to raise or drop the bed board.
The liftable bed according to claim 6, wherein a control switch for telescopic operation of the electric telescopic rod is disposed outside the bed box.
The liftable bed according to claim 1, further comprising a support rod, wherein the support rod is hingedly connected to the bed box at one end, and after the bed is raised, the two ends of the support rod respectively abut The bed board and the bed box are used to support the bed board to prevent the bed board from falling.