CN105877175B - Foldable bed desk and using method thereof - Google Patents

Abstract

The invention relates to a foldable bed desk, comprising a desktop, the left side of the desktop is provided with a frame for supporting the left side of the desktop, and the right side of the desktop is provided with at least two brackets for supporting the right side of the desktop. Supporting legs, the desktop is composed of a left board and a right board, the upper surface edge of the right board is hinged on the upper surface edge of the left board for rotating and folding movement, and the supporting legs are hinged at the bottom of the right board Perform a swivel fold motion. The foldable bed desk has the advantages of simple structure, small occupied space, convenient use and stable structure.

Description

Foldable bed desk and using method thereof

technical field

The invention provides a foldable bed desk and a using method thereof.

Background technique

Most of the traditional bed desks are supported by four tripods. Every time they are used, the four tripods have to be unfolded and placed on the bed, and each tripod of the desk has to be closed one by one after use. The desktop area of the traditional bed desk is small and cannot be folded , The tripod structure is unstable when in use, and it is too cumbersome to unfold and store, and it still takes up too much space after being stored.

Contents of the invention

The object of the present invention is to provide a collapsible bed desk and a use method thereof to address the above deficiencies.

The solution adopted by the present invention to solve the technical problem is a foldable bed desk, including a desktop, the left side of the desktop is provided with a frame for supporting the left side of the desktop, and the right side of the desktop is provided with at least two The supporting legs used to support the right side of the desktop. The desktop is composed of a left plate and a right plate. The upper surface edge of the right plate is hinged on the upper surface edge of the left plate to rotate and fold. It is hinged to the bottom of the right plate body to carry out the rotation and folding movement.

Further, the inside of the left board is provided with a left cavity, the inside of the right board is provided with a right cavity, the left board includes a left end face on the hinge side, and the right board includes a The right end face on the side, said right end face is in close contact with the left end face after the right plate body is unfolded along the hinged end.

Further, at least two left notches communicating with the left cavity are provided on the left end surface, at least two right notches communicating with the right cavity are provided on the right end surface, and the left notches communicate with the right cavity. The notches have the same shape, and the right notch coincides with the left notch when the right end surface is close to the left end surface.

Further, each support leg is hinged with a crank on one side of the hinge end, and the crank is hinged with a sliding plate located in the right cavity, and the crank and the sliding plate are located at the hinge point between the right end face and the supporting leg Between, the inner bottom of the right cavity is provided with a relief groove for the crank to pass through, the sliding plates are all perpendicular to the right end face, and the two sides of the sliding plates are symmetrically provided with protrusions A, The right plate body is provided with a first chute at the inner bottom of the right cavity, the first chute is perpendicular to the right end surface, and the protrusions A are all embedded in the first chute for sliding movement, and the sled The ends of the moving plates are all connected with a parallelogram linkage.

Further, the parallelogram linkage mechanism includes a connecting rod A, a connecting rod B, a connecting rod C, and a connecting rod D, and the common hinge point of the connecting rod A and the connecting rod B is hinged at the end of the sliding plate. The rod A is hinged with the connecting rod D, the connecting rod B is hinged with the connecting rod C, the connecting rod C is hinged with the connecting rod D, and the bottom of the connecting rod B and the connecting rod C is hinged with a slider, so The bottoms of the connecting rod A and the connecting rod D are also jointly hinged with sliders, and both sides of the two sliders are symmetrically provided with bumps B, and the right plate is provided with a second inner bottom of the right cavity. chute, the second chute is perpendicular to the first chute, the projection B is embedded in the second chute for sliding movement, and the hinge point of the connecting rod C and the connecting rod D is also hinged at a common hinge point There is a movable plate body, the straight line where the hinge point of the connecting rod A and the connecting rod B, the hinge point of the connecting rod C and the connecting rod D is always perpendicular to the right end face, the hinge point of the connecting rod A and the connecting rod D, The straight line where the hinge point of connecting rod B and connecting rod C is located is always parallel to the right end face, the movable plate body is perpendicular to the right end face, and the cross-sectional shape of the movable plate body is the same as that of the left notch and the right notch, The projection of the movable plate body on the right end surface coincides with the right notch, and the movable plate body is completely located in the right cavity after the supporting legs are fully folded.

Further, the inside of the frame body is provided with a storage cavity, and the two sides of the storage cavity are symmetrically provided with chute, and the chute includes a vertical chute, and the top of the vertical chute is provided with a horizontal chute, the horizontal chute communicates with the vertical chute, the extension direction of the horizontal chute is perpendicular to the left end face and the right end face, the left plate is located between the two chute, the two sides of the left plate Rotating shafts and rollers are arranged symmetrically on the side, and the rollers are embedded in the chute, and the left plate slides in the chute through the rollers to perform a rotational storage movement relative to the storage cavity.

Further, the groove bottom at the end of the transverse chute is recessed downward with a stepped groove, and the rollers are located in the groove after the left plate body is horizontally unfolded.

Further, the horizontal chute is connected with the vertical chute in an inverted L shape.

Further, the end of the transverse chute is suspended on the top of the frame body.

A method of using a foldable bed and desk is carried out according to the following steps:

(1) The desktop is initially stored in the storage cavity. When the desktop is to be unfolded, pull the left plate and the right plate upward. The whole body and the right plate body are rotated to the level with the roller as the fulcrum, and then the left plate body and the right plate body are pulled horizontally, and the roller rolls to the end in the horizontal chute and falls into the groove;

(2) Keep the left plate body level, turn the right plate body along the hinge point to the level, the left end face is close to the right end face, and the left notch coincides with the right notch;

(3) Spread the supporting leg at the bottom of the right plate body along its hinged end for support. During the unfolding process, the crank drives the sliding plate to slide away from the right end surface, and the end of the sliding plate is driven by the parallelogram linkage mechanism The movable plate moves towards the direction close to the right end face, and the movable plate passes through the right notch and the left notch in turn and is supported between the right and left plate;

(4) To fold the desktop, first rotate and fold the supporting leg at the bottom of the right plate along its hinged end. During the rotation, the crank drives the sliding plate to slide towards the right end surface, and the end of the sliding plate passes through the parallel The quadrilateral link mechanism drives the movable plate body to move away from the right end face, and the movable plate body is stored in the right cavity of the right plate body after passing through the left notch and the right notch in turn;

(5) Keep the left plate body horizontal, flip the right plate body along the hinge point to the upper surface of the left plate body, and separate the left end surface from the right end surface;

(6) Pull the left plate and the right plate upward synchronously so that the rollers are out of the groove, and then pull the left plate and the right plate horizontally at the same time, and the rollers roll in the horizontal chute until they connect with the vertical chute When pointing, rotate the left plate body and the right plate body to the vertical direction with the roller as the fulcrum, pull the left plate body and the right plate body downward, the rollers roll in the vertical chute to the bottom of the groove, and the left plate body and the right plate are stored in the storage cavity.

Compared with the prior art, the present invention has the following beneficial effects: the foldable bed desk has a simple structure, takes up little space, is convenient to use, and has a stable structure; Folding, and through the crank, sliding plate, and parallelogram linkage mechanism, the movable plate body linked with the supporting feet is set. To strengthen the structural stability between the left plate and the right plate, it can be located in the right cavity when it is to be folded, without affecting the rotation and folding of the right plate; the left plate and the right plate can also be stored in the storage cavity Inside, takes up little space.

Description of drawings

Below in conjunction with accompanying drawing, the patent of the present invention is further described.

Fig. 1 is the structural representation of the embodiment of the invention;

Fig. 2 is a partial enlarged view of A of Fig. 1;

Fig. 3 is a partial enlarged view of B of Fig. 1;

Fig. 4 is the structural schematic diagram one of frame body;

Fig. 5 is the structural schematic diagram II of frame body;

Fig. 6 is a schematic diagram 1 of the lifting state on the chute according to the embodiment of the invention;

Fig. 7 is the second schematic diagram of the lifting state on the chute according to the embodiment of the invention;

Fig. 8 is a schematic diagram of the pulling state on the chute of the embodiment of the invention III;

Fig. 9 is a schematic diagram of the state of the roller falling into the groove;

Fig. 10 is a schematic diagram of the state of the right plate body rotating around the hinge point;

Fig. 11 is a schematic diagram of the state where the supporting leg rotates around the hinge point;

Fig. 12 is a schematic diagram of the structure in which the left plate body and the right plate body are removed in Fig. 11;

Figure 13 is a schematic diagram of the left notch and the right notch;

In the picture:

1-desktop; 2-frame; 3-supporting legs; 4-left plate; 5-right plate; 6-left cavity; 7-right cavity; 8-left end face; 9-right end face; 10- Left notch; 11-Right notch; 12-Crank; 13-Sliding plate; 14-Giveway slot; 15-Bump A; 16-First chute; 17-Connecting rod A; 18-Connecting rod B ;19-connecting rod C; 20-connecting rod D; 21-slider; 22-bump B; 23-second chute; -transverse chute; 28-roller; 29-groove.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figures 1-13, a foldable bed desk includes a desktop 1, the left side of the desktop is provided with a frame 2 for supporting the left side of the desktop, and the right side of the desktop is provided with at least two The support legs 3 used to support the right side of the desktop, the desktop is composed of a left plate body 4 and a right plate body 5, the upper surface edge of the right plate body is hinged on the upper surface edge of the left plate body for rotation and folding movement, so The supporting legs are hinged to the bottom of the right plate body for rotation and folding movement.

In this embodiment, the inside of the left board is provided with a left cavity 6, the inside of the right board is provided with a right cavity 7, and the left board includes a left end surface 8 on the hinged side. The right plate body includes a right end surface 9 on the hinge side, and the right end surface is in close contact with the left end surface after the right plate body is unfolded along the hinge end.

In this embodiment, the left end surface is provided with at least two left notches 10 communicating with the left cavity, and the right end surface is provided with at least two right notches 11 communicating with the right cavity. The shape of the left notch is the same as that of the right notch, and the right notch coincides with the left notch when the right end surface is close to the left end surface.

In this embodiment, each support leg is hinged with a crank 12 on one side of the hinged end, and the crank is hinged with a sliding plate 13 located in the right cavity, and the crank and the sliding plate are located between the right end surface and Between the hinge points of the supporting legs, the inner bottom of the right cavity is provided with a relief groove 14 for the crank to pass through, and the sliding plates are all perpendicular to the right end face, and the two sides of the sliding plates are symmetrical A bump A15 is provided, and the right plate body is provided with a first chute 16 at the inner bottom of the right cavity, the first chute is perpendicular to the right end face, and the bumps A are all embedded in the first chute for Sliding movement, the ends of the sliding plates are connected with parallelogram linkages.

In this embodiment, the parallelogram linkage mechanism includes a connecting rod A17, a connecting rod B18, a connecting rod C19, and a connecting rod D20, and the connecting rod A and the connecting rod B are hinged at the end of the sliding plate at a common joint point. The connecting rod A is hinged with the connecting rod D, the connecting rod B is hinged with the connecting rod C, the connecting rod C is hinged with the connecting rod D, and the bottom of the connecting rod B and the connecting rod C are hinged with a slide Block 21, the bottoms of the connecting rod A and the connecting rod D are also hinged with sliders, and both sides of the two sliders are symmetrically provided with bumps B22, and the right plate body is at the inner bottom of the right cavity. A second chute 23 is provided, the second chute is perpendicular to the first chute, the protrusion B is embedded in the second chute for sliding movement, and the hinge point of the connecting rod C and the connecting rod D is There is also a movable plate body 24 hinged at the joint point, the straight line where the hinge point of the connecting rod A and the connecting rod B, the hinge point of the connecting rod C and the connecting rod D is always perpendicular to the right end face, and the connecting rod A and the connecting rod The hinge point of rod D, the straight line where the hinge point of connecting rod B and connecting rod C are always parallel to the right end surface, the movable plate body is perpendicular to the right end surface, and the cross-sectional shape of the movable plate body is consistent with the left notch , the right notch are the same, the projection of the movable plate body on the right end face coincides with the right notch, and the movable plate body is completely located in the right cavity after the supporting legs are fully folded.

In this embodiment, a storage cavity 25 is provided inside the frame body, and sliding grooves are symmetrically arranged on both sides of the storage cavity, and the sliding grooves all include vertical sliding grooves 26, and the vertical sliding grooves of the vertical sliding grooves The top is provided with horizontal chute 27, and the horizontal chute communicates with the vertical chute. Both sides of the left plate body are symmetrically provided with rotating shafts and rollers 28. The rollers are embedded in the chute, and the left plate body slides in the chute through the rollers to perform a rotational storage movement relative to the storage chamber.

In this embodiment, the groove bottom at the end of the transverse chute is recessed downward with a stepped groove 29, and the rollers are located in the groove after the left plate is horizontally unfolded. Under the action of the stepped groove, , when the roller rolls back, it is stuck on the ladder to prevent the roller from rolling back.

In this embodiment, the horizontal chute is connected to the vertical chute in an inverted L shape.

In this embodiment, the end of the transverse sliding groove is suspended on the top of the frame body.

A method of using a foldable bed and desk is carried out according to the following steps:

(1) The desktop is initially stored in the storage cavity. When the desktop is to be unfolded, pull the left plate and the right plate upward. The whole body and the right plate body are rotated to the level with the roller as the fulcrum, and then the left plate body and the right plate body are pulled horizontally, and the roller rolls to the end in the horizontal chute and falls into the groove;

(2) Keep the left plate body level, turn the right plate body along the hinge point to the level, the left end face is close to the right end face, and the left notch coincides with the right notch;

(3) Spread the supporting leg at the bottom of the right plate body along its hinged end for support. During the unfolding process, the crank drives the sliding plate to slide away from the right end surface, and the end of the sliding plate is driven by the parallelogram linkage mechanism The movable plate moves towards the direction close to the right end face, and the movable plate passes through the right notch and the left notch in turn and is supported between the right and left plate;

(4) To fold the desktop, first rotate and fold the supporting leg at the bottom of the right plate along its hinged end. During the rotation, the crank drives the sliding plate to slide towards the right end surface, and the end of the sliding plate passes through the parallel The quadrilateral link mechanism drives the movable plate body to move away from the right end face, and the movable plate body is stored in the right cavity of the right plate body after passing through the left notch and the right notch in turn;

(5) Keep the left plate body horizontal, flip the right plate body along the hinge point to the upper surface of the left plate body, and separate the left end surface from the right end surface;

(6) Pull the left plate and the right plate upward synchronously so that the rollers are out of the groove, and then pull the left plate and the right plate horizontally at the same time, and the rollers roll in the horizontal chute until they connect with the vertical chute When pointing, rotate the left plate body and the right plate body to the vertical direction with the roller as the fulcrum, pull the left plate body and the right plate body downward, the rollers roll in the vertical chute to the bottom of the groove, and the left plate body and the right plate are stored in the storage cavity.

The above-listed preferred embodiments have further described the purpose, technical solutions and advantages of the present invention in detail. It should be understood that the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Within the spirit and principles of the present invention, any modifications, equivalent replacements, improvements, etc., shall be included within the protection scope of the present invention.

Claims (1)

1. A foldable bed desk, characterized in that: it comprises a desktop, the left side of the desktop is provided with a support for the left side of the desktop, and the right side of the desktop is provided with at least two frames for the right side of the desktop. The supporting legs of the side support, the desktop is composed of a left plate body and a right plate body, the upper surface edge of the right plate body is hinged on the upper surface edge of the left plate body for rotating and folding movement, and the supporting legs are hinged on the right plate body The bottom of the body rotates and folds; the inside of the left plate is provided with a left cavity, the inside of the right plate is provided with a right cavity, the left plate includes a left end surface on the hinged side, and the right The plate body includes a right end surface on the hinge side, and the right end surface is closely attached to the left end surface after the right plate body is unfolded along the hinge end; the left end surface is provided with at least two left notches communicating with the left cavity, The right end face is provided with at least two right notches communicating with the right cavity, the shape of the left notch is the same as that of the right notch, and the right notch is connected with the left notch when the right end face is close to the left end face. Coincident; each supporting leg is hinged with a crank on one side of the hinged end, and the crank is hinged with a sliding plate located in the right cavity, and the crank and the sliding plate are located between the right end surface and the hinge point of the supporting leg Between, the inner bottom of the right cavity is provided with a relief groove for the crank to pass through, the sliding plates are perpendicular to the right end face, and the two sides of the sliding plates are symmetrically provided with protrusions A, so The right plate body is provided with a first chute at the inner bottom of the right cavity, the first chute is perpendicular to the right end face, and the protrusions A are all embedded in the first chute for sliding movement, and the sliding The ends of the plates are all connected with a parallelogram linkage mechanism; the parallelogram linkage mechanism includes a connecting rod A, a connecting rod B, a connecting rod C, and a connecting rod D, and the connecting rod A and the connecting rod B are jointly hinged at The end of the slide plate, said link A is hinged to link D, said link B is hinged to link C, said link C is hinged to link D, and said link B is hinged to the bottom of link C A slider is hinged at a common hinge point, and the bottom of the connecting rod A and the connecting rod D are also hinged with a slider at a common hinge point. Both sides of the two sliders are symmetrically provided with bumps B, and the right plate is on the right. The inner bottom of the cavity is provided with a second chute, the second chute is perpendicular to the first chute, the protrusion B is embedded in the second chute for sliding movement, the connecting rod C and the connecting rod D There is also a movable plate body hinged on the hinge point of the hinge point, the straight line where the hinge point of the connecting rod A and the connecting rod B, the hinge point of the connecting rod C and the connecting rod D is always perpendicular to the right end face, and the connecting rod The hinge point of A and connecting rod D, the straight line where the hinge point of connecting rod B and connecting rod C are always parallel to the right end surface, the movable plate body is perpendicular to the right end surface, and the cross-sectional shape of the movable plate body is the same as that of the described movable plate body. The left notch and the right notch are the same, the projection of the movable plate body on the right end face coincides with the right notch, and the movable plate body is completely located in the right cavity after the supporting legs are completely folded; the frame body The interior of the storage chamber is provided with a storage cavity, and both sides of the storage cavity are symmetrically provided with chute, and the chute includes a vertical chute, and the top of the vertical chute is provided with a horizontal chute, and the horizontal chute The groove communicates with the vertical chute, and the extension direction of the horizontal chute is perpendicular to the left end face and the right end face, so The left plate body is located between two chutes, and the two sides of the left plate body are symmetrically provided with rotating shafts and rollers. The rollers are embedded in the chute, and the left plate body slides in the chute for relative The storage chamber rotates and stores movement; the bottom of the groove at the end of the horizontal chute is sunken downward with a stepped groove, and the roller is located in the groove after the left plate is horizontally unfolded; the horizontal chute and the vertical The chute is connected in an inverted L shape; the end of the horizontal chute is suspended on the top of the frame body; its use is carried out according to the following steps: (1) The desktop is initially stored in the storage cavity. When the desktop is to be unfolded, pull the left plate and the right plate upward. The whole body and the right plate body are rotated to the level with the roller as the fulcrum, and then the left plate body and the right plate body are pulled horizontally, and the roller rolls to the end in the horizontal chute and falls into the groove; (2) Keep the left plate body level, turn the right plate body along the hinge point to the level, the left end face is close to the right end face, and the left notch coincides with the right notch; (3) Spread the supporting leg at the bottom of the right plate body along its hinged end for support. During the unfolding process, the crank drives the sliding plate to slide away from the right end surface, and the end of the sliding plate is driven by the parallelogram linkage mechanism The movable plate moves towards the direction close to the right end face, and the movable plate passes through the right notch and the left notch in turn and is supported between the right and left plate; (4) To fold the desktop, first rotate and fold the supporting leg at the bottom of the right plate along its hinged end. During the rotation, the crank drives the sliding plate to slide towards the right end surface, and the end of the sliding plate passes through the parallel The quadrilateral link mechanism drives the movable plate body to move away from the right end face, and the movable plate body is stored in the right cavity of the right plate body after passing through the left notch and the right notch in turn; (5) Keep the left plate body horizontal, flip the right plate body along the hinge point to the upper surface of the left plate body, and separate the left end surface from the right end surface; (6) Pull the left plate and the right plate upward synchronously so that the rollers are out of the groove, and then pull the left plate and the right plate horizontally at the same time, and the rollers roll in the horizontal chute until they connect with the vertical chute When pointing, rotate the left plate body and the right plate body to the vertical direction with the roller as the fulcrum, pull the left plate body and the right plate body downward, the rollers roll in the vertical chute to the bottom of the groove, and the left plate body and the right plate are stored in the storage cavity.