CN113876142B - Liftable bed and lifting control method thereof - Google Patents

Abstract

The application discloses a liftable bed and its lifting control method, including a bed frame, which includes a headboard, a footboard, and a bed board whose bottoms are fixedly connected by cross beams at the front and rear, and the bed board is arranged on the headboard for horizontal movement. Between the bed footboard and the lifting control mechanism, it has a hand crank and a limit mechanism, which has a lever. Among them, the hand crank provides power for the lifting control mechanism to drive the bed board up and down, and through the lever Drive the limit mechanism to fix the position of the bed board. People drive the lifting control mechanism through the hand crank to make the bed board rise and fall between the headboard and the foot board. When the bed board is lifted to a suitable height, stop rotating the hand crank. The lever drives the limit mechanism to fix the lifting control mechanism, and uses manpower as the driving force, so that when the bed is located in a place where it is inconvenient or impossible to be powered, the height of the bed board can still be adjusted, increasing the applicable scenarios of the bed.

Description

A liftable bed and its lift control method

technical field

The invention relates to a liftable bed and a lift control method thereof.

Background technique

The electric hospital bed has the functions of lifting and lowering the overall balance of the bed, tilting the bed forward and backward, lifting the back, bending and stretching the legs, etc.; the bed can be adjusted to meet the nursing requirements of different heights, and the back and legs can be adjusted. Change to achieve sitting and lying postures of different shapes to achieve the comfort of different needs of the human body; in terms of structure, it is divided into liftable and non-liftable electric hospital beds, and liftable electric hospital beds are generally composed of movable bed frames and lifting mechanisms. The bed boards of the bed frame are designed as back boards, buttock boards, leg boards and foot boards. The position and inclination angle of each board board can be adjusted through the control system. The lifting mechanism generally uses a pressure cylinder as the power source, such as patent publication number CN203226972U , an electric lifting medical bed, the bed boards installed on the movable bed frame are designed as back boards, hip boards, leg boards and foot boards, wherein the hip boards are fixed on the bed frame, and the back boards are hinged on the buttocks The bed board, the leg bed board and the foot bed board are hinged to each other; the electric bed with the patented structure uses the hinge frame and the hydraulic cylinder to lift the bed as a whole, which facilitates the treatment of doctors and patients; but the disadvantage is that the hydraulic cylinder is directly installed on the movable bed frame The bottom of the bed board will generate strong vibration during operation, and the transmission will be unstable, which may cause secondary injury to the patient, and the lifting is too long to rely on electric drive. When the bed is located in a place where it is inconvenient to connect to electricity, the bed board cannot be adjusted. height, when it becomes necessary to make improvements therefrom.

Contents of the invention

The present invention aims to solve one of the technical problems existing in the prior art.

The application provides a liftable bed, characterized in that, comprising:

A bed frame, which includes two front and rear headboards and footboards whose bottoms are fixedly connected by beams;

a bed board disposed horizontally between said headboard and footboard;

The lifting control mechanism has a hand crank and is installed between the bed board and the bed frame;

The limit mechanism has a lever and is used to fix the position of the bed board after the lifting is completed;

Wherein, the lifting control mechanism is powered by the hand crank to drive the bed board up and down, and the limit mechanism is driven by the lever to fix the position of the bed board.

Using the above-mentioned liftable bed, people drive the lifting control mechanism through the hand crank to make the bed board rise and fall between the headboard and the footboard. The lever drives the limit mechanism to fix the lifting control mechanism, using manpower as the driving force, so that when the bed is located in a place where it is inconvenient or impossible to power on, the height of the bed board can still be adjusted, increasing the applicable scenarios of the bed.

The lifting control mechanism includes:

Pipe sleeves, which have at least one pair of bottom ends fixedly installed on the left and right sides of the top of the beam and the top ends are inclined in a direction away from each other;

There are a number of inclined support rods, the bottom ends of which are at least partly slidably installed in the pipe sleeves, and the top ends abut against the bottom surface of the bed board;

A chute, which is arranged on one side of the sleeve and communicates with its inner cavity;

Pillar 1, which is slidably installed in the chute 1 and one end is fixedly connected with the bottom end of the inclined support rod, and the other end protrudes out of the chute 1;

Push mechanism with a hand crank;

Wherein, the pushing mechanism is driven by the hand crank to push the pillar one to slide in the chute one.

The moving mechanism includes:

The screw rod has a pair of adjacent ends fixedly connected, and the two opposite ends are respectively connected to the inner wall of the beam in rotation and pass through the footboard to extend out of the bed frame;

Screw sleeves, which have at least one pair and are respectively driven and installed on each screw rod;

a mounting plate, which is fixedly mounted on the top of the screw sleeve;

a column, which is fixedly installed on the top of the mounting plate and the side wall abuts against the side wall of the column;

Wherein, the threads of the screw rods are in opposite directions, and the hand crank is fixedly connected to the screw rod ends protruding from the bed frame.

The moving mechanism also includes:

A roller, which is rotatably mounted on one end of the pillar extending out of the chute;

A rolling groove, which is vertically arranged on the side wall of the column facing the column one;

Wherein, the roller rolls in the rolling groove.

The lifting control mechanism also includes:

a support column fixedly mounted on the top of the beam;

The second chute is obliquely arranged in the support column and runs through at both ends;

Wherein, the middle part of the inclined support rod is slidingly matched with the second sliding groove.

Also includes:

Slider 1, which is fixedly installed on the top of the inclined support rod;

The third chute is arranged on the bottom surface of the bed board and extends laterally;

Wherein, the top end of the first slider is slidably installed in the third chute.

The limiting mechanism includes:

Chute four, it has at least one pair and is respectively vertically arranged on the opposite side walls of the headboard and the tailboard;

Slide block two, it has some to slide in each chute four respectively;

Blocks, which have several and are evenly distributed on the side wall of the slider 2 away from the headboard along the vertical direction;

Pillar 2, which is vertically and fixedly installed on the end of the top of the beam close to the tailboard;

Chute five, which is vertically arranged on the two sides of the pillar;

Slide block three, which is vertically slidably installed in said chute five;

A swing arm, the middle of which is hinged to the top of the two sides of the pillar and one end extends to the bottom of the block and the other end extends to the outside of the fifth chute;

slider four, which is fixedly installed on the three sides of the slider;

chute six, which is arranged on the side of the swing arm away from the block and extends laterally;

a bottom plate, which is fixedly installed on the bottom of the three sides of the slider;

The locking mechanism is used to fix the slider three after adjusting the position;

Wherein, the front and rear ends of the bed board are respectively fixedly connected with the two sliders, the lever is L-shaped and the middle part is hinged with the two sides of the pillar, the bent end of the lever abuts against the bottom surface of the base plate, and the other end extends out of the machine. off the shelf.

The locking mechanism includes:

A chute seven, which is arranged on the five side walls of the chute;

Slider five, which slides horizontally and is installed in the chute seven;

A limit block, which is fixedly mounted on the side wall of the slider five facing the slider three;

Limiting grooves, which have several and are distributed along the vertical direction on the side wall of the slider three facing the chute seven, for the clamping of the limiting block;

a spring, which is arranged between the opposite side walls of the slider five and the limit groove six;

A pull rod, one end of which is fixedly mounted on the side wall of the slider five facing the spring, and the other end passes through the pillar two and extends out of the limiting groove;

A pull handle, which includes a long rod, a short rod and a cross rod whose two ends are fixedly connected to the middle of the long rod and the top of the short rod respectively;

A through hole, which runs through the end of the pull rod away from the limiting groove up and down;

Wherein, the short rod of the handle is inserted into the through hole.

Also includes:

A bracket, which is fixedly mounted on the side wall of the pillar two facing the headboard;

The draw-in slot is arranged at the end of the support away from the support two for the clamping of the top end of the long rod of the handle.

Include the following steps:

S1: Pull the handle away from the second column, the slider five slides in the slider six, the limit block breaks away from the limit slot, and then turn the handle so that the top of the long rod of the handle is snapped into the slot, Under the action of gravity, one end of the lever extending out of the bed frame falls, and the other end pushes the bottom plate and the chute five to rise, and the swing arm swings, and the top surface of the end far away from the chute five is out of contact with the bottom surface of the block;

S2: Turn the hand crank, the screw sleeve moves laterally on the screw rod, the mounting plate moves with the screw sleeve, and pushes the pillar one to move upward or downward in the chute one, so that the inclined support rod pushes the bed board up or makes the bed board down, After the bed board is lifted to a suitable height, stop turning the hand crank;

S3: Lift the lever to extend one end of the frame, the other end of the lever is out of contact with the bottom plate, under the action of gravity, the slider three falls in the chute five, the swing arm swings, and the top surface of the end far away from the chute five and the block Bottom abutment;

S4: Turn the handle, the top of the long rod of the handle is out of the slot, the spring resets and pushes the slider five to slide in the chute seven towards the limit slot, and the limit block is snapped into the limit slot.

The beneficial effects of the present invention will be elaborated in the embodiments, so that the beneficial effects are more obvious.

Description of drawings

Fig. 1 is the structural schematic diagram of the specific embodiment of the liftable bed of the embodiment of the present application;

Fig. 2 is a schematic diagram of a partially enlarged structure at A in Fig. 1;

FIG. 3 is a schematic diagram of a partially enlarged structure at B in FIG. 1 .

reference sign

1-beam, 2-headboard, 3-foot board, 4-bed board, 5-lifting control mechanism, 501-pipe sleeve, 502- inclined support rod, 503-chute 1, 504-pillar 1, 6- Hand crank, 7-limit mechanism, 701-slider 4, 702-slider 2, 703-block, 704-slider 5, 705-pillar 2, 706-slider 3, 707-swing arm, 708 - Chute four, 709- Chute six, 710- Base plate, 8- Lever, 9- Push mechanism, 901- Screw, 902- Screw sleeve, 903- Mounting plate, 904- Column, 905- Roller, 906- Roll groove , 907-support column, 908-chute two, 909-slider one, 910-chute three, 10-lock mechanism, 1001-chute seven, 1002-slider five, 1003-limit block, 1004-limit Position slot, 1005-spring, 1006-pull rod, 1007-handle, 1008-support, 1009-card slot.

Detailed ways

The following will clearly describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in this application belong to the protection scope of this application.

The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It should be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application can be practiced in sequences other than those illustrated or described herein, and that references to "first," "second," etc. distinguish Objects are generally of one type, and the number of objects is not limited. For example, there may be one or more first objects. In addition, "and/or" in the specification and claims means at least one of the connected objects, and the character "/" generally means that the related objects are an "or" relationship.

The server provided by the embodiment of the present application will be described in detail below through specific embodiments and application scenarios with reference to the accompanying drawings.

Example 1:

As shown in Figures 1 to 3, the embodiment of the present application provides a liftable bed, which is characterized in that it includes:

The bed frame comprises a headboard 2 and a footboard 3 whose bottoms are fixedly connected by a crossbeam 1;

a bed board 4, which is arranged horizontally between the headboard 2 and the footboard 3;

Lifting control mechanism 5, which has a hand crank 6 and is installed between the bed board 4 and the bed frame;

The limit mechanism 7 has a lever 8 and is used to fix the position of the bed board 4 after the lifting is completed;

Wherein, the lifting control mechanism 5 is powered by the hand crank 6 to drive the bed board 4 up and down, and the limit mechanism 7 is driven by the lever 8 to fix the position of the bed board 4 .

In the embodiment of the present application, the above-mentioned liftable bed is adopted. People drive the lifting control mechanism 5 through the hand crank 6 to make the bed board 4 lift between the headboard 2 and the footboard 3. After the bed board 4 is lifted to When the height is suitable, stop turning the hand crank 6, drive the limit mechanism 7 through the lever 8 to fix the lifting control mechanism 5, and use manpower as the driving force, so that the bed board can still be adjusted when the bed is located in a place where it is inconvenient or impossible to energize The height of 4 increases the applicable scene of the bed.

Example 2:

In this embodiment, in addition to the structural features of the preceding embodiments, the lifting control mechanism 5 includes:

pipe sleeve 501, which has at least one pair of its bottom ends fixedly installed on the left and right sides of the top of the crossbeam 1 and the top ends are inclined in a direction away from each other;

There are a number of inclined support rods 502, the bottom ends of which are at least partly slidably installed in each sleeve 501, and the top ends abut against the bottom surface of the bed board 4;

A chute 503, which is arranged on one side of the sleeve 501 and communicates with its inner cavity;

Pillar 1 504, which is slidably installed in the chute 1 503 and one end is fixedly connected to the bottom end of the inclined support rod 502, and the other end extends out of the chute 1 503;

Push mechanism 9, which has hand crank 6;

Wherein, the pushing mechanism 9 is driven by the hand crank 6 to push the pillar 1 504 to slide in the chute 1 503 .

In this embodiment, due to the adoption of the above-mentioned structure, the hand crank 6 is manually driven to move the pushing mechanism 9, and the prop is pushed to slide in the chute one 503, so that each inclined support rod 502 is tilted upward or toward the Slide down to drive the bed board 4 to rise or fall, using manpower as the driving force, so that when the bed is located in a place where it is inconvenient or impossible to power on, the height of the bed board 4 can still be adjusted, increasing the applicable scenarios of the bed.

Example 3:

In this embodiment, in addition to the structural features of the previous embodiments, the pushing mechanism 9 includes:

Screw 901, which has a pair of adjacent ends fixedly connected, and the two opposite ends are respectively connected to the inner wall of the crossbeam 1 in rotation and pass through the footboard 3 to extend out of the bed frame;

Screw sleeves 902, which have at least one pair and are respectively driven and installed on each screw rod 901;

Mounting plate 903, which is fixedly mounted on the top of the screw sleeve 902;

A column 904, which is fixedly mounted on the top of the mounting plate 903 and the side wall abuts against the side wall of the column one 504;

Wherein, the screw thread direction of each screw rod 901 is opposite, and described hand handle 6 stretches out the screw rod 901 ends outside the bed frame and is fixedly connected.

In this embodiment, due to the above-mentioned structure, the screw 901 is driven by the hand crank 6 to rotate, so that the screw sleeve 902 moves on the screw 901, the mounting plate 903 and the column 904 move together with the screw sleeve 902, and the moving column 904 pushes Pillar one 504 slides in chute one 503, and the cooperation of screw sleeve 902 and screw rod 901 makes the movement of mounting plate 903 and column 904 stable, and bed board 4 is difficult to shake when lifting, and improves the stability of bed board 4 when lifting.

Example 4:

In this embodiment, in addition to the structural features of the previous embodiments, the pushing mechanism 9 also includes:

Roller 905, which is rotatably mounted on one end of the pillar one 504 protruding out of the chute one 503;

A rolling groove 906, which is vertically arranged on the side wall of the column 904 towards the column one 504;

Wherein, the roller 905 rolls in the rolling groove 906 .

In this embodiment, due to the above-mentioned structure, through the setting of the roller 905 and the rolling groove 906, the resistance and friction loss during the friction between the pillar 504 and the column 904 are reduced, and the sliding of the pillar 504 in the chute 503 is improved. When the stability is improved, the service life of the pillar one 504 and the column 904 is improved.

Example 5:

In this embodiment, in addition to the structural features of the foregoing embodiments, the lifting control mechanism 5 also includes:

Support column 907, which is fixedly installed on the top of the beam 1;

The second chute 908 is obliquely arranged in the support column 907 and runs through at both ends;

Wherein, the middle part of the oblique support rod 502 is slidingly matched with the second sliding slot 908 .

In this embodiment, due to the adoption of the above-mentioned structure, through the setting of the support column 907 and the second chute 908, support is provided for the middle part of the oblique support rod 502, and the stability of the oblique support rod 502 when sliding is improved to prevent the patient's weight The overweight causes the bending and deformation of the middle part of the oblique support rod 502 to cause the phenomenon that the oblique support rod 502 cannot normally expand and contract in the sleeve 501, which improves the stability and service life of the equipment.

Embodiment 6:

In this embodiment, in addition to including the structural features of the foregoing embodiments, it also includes:

Slider one 909, which is fixedly installed on the top of the inclined support rod 502;

The third chute 910 is arranged on the bottom surface of the bed board 4 and extends laterally;

Wherein, the top of the first slider 909 is slidably installed in the third chute 910 .

In this embodiment, due to the adoption of the above-mentioned structure, when the bottom end of the inclined support rod 502 is raised and lowered in the sleeve 501, the top of the inclined support rod 502 drives the slider one 909 to slide in the chute three 910. The cooperation of 909 and chute three 910 limits the position between the top of the inclined support rod 502 and the bottom surface of the bed board 4, so that the moving track of the inclined support rod 502 is fixed, and the stability when the bed board 4 is raised and lowered is improved.

Embodiment 7:

In this embodiment, in addition to the structural features of the preceding embodiments, the limiting mechanism 7 includes:

Chutes 4 701, which have at least one pair and are respectively vertically arranged on the opposite side walls of the headboard 2 and the tailboard 3;

Slide block two 702, it has some to slide in each chute four 701 respectively;

Block 703, it has a number and is evenly distributed on the side wall of the slide block 2 702 away from the headboard 2 along the vertical direction;

Pillar 2 705, which is vertically and fixedly installed on the top of the beam 1 near the end of the tailboard 3;

Chute five 704, which is vertically arranged on the side of the two pillars 705;

Slide block three 706, which is vertically slidably installed in said chute five 704;

Swing arm 707, the middle of which is hinged to the top of the side of pillar two 705 and one end extends to the bottom of the block 703 and the other end extends to the outside of the chute five 704;

slider four 708, which is fixedly installed on the side of the slider three 706;

Slide slot six 709, which is arranged on the side of the swing arm 707 away from the block 703 and extends laterally;

Bottom plate 710, which is fixedly installed on the bottom of the side of the slider three 706;

The locking mechanism 10 is used to fix the slider three 706 after adjusting the position;

Wherein, the front and rear ends of the bed board 4 are respectively fixedly connected with the sliders 2 702, the lever 8 is L-shaped and the middle part is hinged with the side of the pillar 2 705, and the bent end of the lever 8 abuts against the bottom surface of the bottom plate 710 , and the other end sticks out of the rack.

In this embodiment, due to the adoption of the above-mentioned structure, the bed board 4 is limited by the cooperation of the chute 4 701 and the slider 2 702, so that its lifting track is fixed. After the bed board 4 is driven up and down by the lifting control mechanism 5, people lift The lever 8 is away from one end of the pillar 2 705, so that the slider 3 706 descends in the chute 5 704, drives the slider 4 708 to slide in the chute 6 709 and drives the swing arm 707 to rotate around its hinge point with the column 904 2, Make the top surface of one end far away from the slider 4 708 abut against the bottom surface of one of the clamping blocks 703, and then fix the position of the slider 4 708 in the chute 6 709 through the locking mechanism 10. In this way, the slider Block 2 702 cannot slide down in chute 5 704 to fix the position of bed board 4, and manually fix the height-adjusted bed board 4, which is convenient for people to use in any scene and improves the scope of application of the bed .

Embodiment 8:

In this embodiment, in addition to the structural features of the foregoing embodiments, the locking mechanism 10 includes:

Chute seven 1001, which is arranged on the side wall of said chute five 704;

Slider five 1002, which slides horizontally and is installed in the chute seven 1001;

Limiting block 1003, which is fixedly installed on the side wall of slider five 1002 facing slider three 706;

Limiting groove 1004, which has several and is distributed along the vertical direction on the side wall of the sliding block three 706 facing the chute seven 1001, for the limiting block 1003 to clamp;

The spring 1005 is arranged between the opposite side walls of the slider 5 1002 and the limiting groove 1004 6;

Pull rod 1006, one end of which is fixedly installed on the side wall of the slider five 1002 facing the spring 1005, and the other end extends out of the limiting groove 1004 through the pillar two 705;

Pull handle 1007, which includes a long rod, a short rod, and a cross bar whose two ends are respectively fixedly connected to the middle part of the long rod and the top of the short rod;

A through hole, which runs through the end of the pull rod 1006 away from the limiting groove 1004 up and down;

Wherein, the short rod of the handle 1007 is inserted into the through hole.

In this embodiment, due to the adoption of the above-mentioned structure, when the slider 3 706 slides in the chute 5 704, the pull rod 1006 is moved away from the column 904 2 through the cooperation of the pull handle 1007 and the through hole, so that the slider Five 1002 slides in the direction away from chute five 704 in chute seven 1001, and the limit block 1003 breaks away from the limit groove 1004, releasing the fixation of slide block three 706, so that slide block three 706 can slide in chute five 704 , when the top surface of one end of the swing arm 707 abuts against the bottom surface of the block 703, the handle 1007 is released, the spring 1005 pushes the slider 5 1002 to slide in the chute 7 1001 toward the chute 5 704, and the stop block 1003 is inserted Into the limiting groove 1004, the position of the slider three 706 is fixed, and in this way, the position of the slider three 706 is quickly fixed, the structure is simple and easy to operate, not easy to damage, and easy to maintain.

Embodiment 9:

In this embodiment, in addition to including the structural features of the foregoing embodiments, it also includes:

Bracket 1008, which is fixedly installed on the side wall of the pillar 2 705 facing the headboard 2;

The locking slot 1009 is provided at the end of the support 1008 away from the second pillar 705 for the top end of the long rod of the pull handle 1007 to be locked.

In this embodiment, due to the adoption of the above-mentioned structure, when the slider three 706 slides in the five chute 704, the pull frame is moved in a direction away from the column 904 two, and the top end of the long rod of the pull frame is snapped into the slot 1009 In this way, people’s hands are liberated, so that people don’t need to be distracted to control the position of the pull frame when adjusting the bed board 4. When it is necessary to fix the slider 3 706, just pull the long rod of the pull frame out of the slot 1009 to make the spring 1005 push the slide Block five 1002 slides toward chute five 704 in chute seven 1001, and limit block 1003 is inserted in the limit groove 1004 to fix the position of slide block three 706, which is convenient for people to operate.

Example 10:

Also disclosed is a lifting control method for a liftable bed, comprising the following steps:

S1: Pull the handle 1007 away from the second column 904, the slider 5 1002 slides in the slider 6, the limit block 1003 breaks away from the limit groove 1004, and then turn the handle 1007 to make the top of the long rod of the handle 1007 Clamped into the card slot 1009, under the action of gravity, one end of the lever 8 extending out of the bed frame falls, and the other end pushes the bottom plate 710 and the fifth chute 704 to rise, and the swing arm 707 swings away from the fifth chute 704. The top surface of one end is out of contact with the bottom surface of the block 703;

S2: Turn the hand crank 6, the screw sleeve 902 moves laterally on the screw rod 901, the mounting plate 903 moves with the screw sleeve 902, and pushes the pillar 1 504 to move upward or downward in the chute 1 503, so that the inclined support rod 502 Push the bed board 4 up or down the bed board 4, and stop turning the hand crank 6 after the bed board 4 is lifted to a suitable height;

S3: lift the lever 8 to extend out of one end of the frame, the other end of the lever 8 is out of contact with the bottom plate 710, under the action of gravity, the slider 3 706 descends in the chute 5 704, and the swing arm 707 swings away from the chute 5 704 The top surface of one end abuts against the bottom surface of the block 703;

S4: Turn the handle 1007, the top of the long rod of the handle 1007 is out of the slot 1009, the spring 1005 resets and pushes the slider 5 1002 to slide in the chute 7 1001 towards the limit slot 1004, and the limit block 1003 is snapped into the limit slot 1004 in.

In this embodiment, due to the adoption of the above-mentioned structure, the screw sleeve 902 and the screw rod 901 are driven to rotate through the manual rotation of the hand crank 6, and the installation plate 903, the column 904 one, the chute one 503, the sleeve and the inclined support rod 502 Under the cooperative effect of adjusting the height of the bed board 4, the lever 8 is driven to swing by manpower, and the bottom plate 710, the third slide block 706, the five chute 704, the five slide block 1002, the seven chute 1001, the swing arm 707, the block 703, Under the cooperative action of pull handle 1007, pull rod 1006, spring 1005, limit block 1003 and limit groove 1004, the bed board 4 is prevented from falling after the height is adjusted, all of which are realized by human driving, so that when the bed is located in a place where it is inconvenient or impossible to be powered , the height of the bed board 4 can still be adjusted, increasing the applicable scenarios of the bed.

It should be noted that, in this document, the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Under the inspiration of this application, without departing from the purpose of this application and the scope of protection of the claims, many forms can also be made, all of which belong to the protection of this application.

Claims (9)

1. A liftable bed, comprising:

the bed frame comprises a front bed head plate (2) and a rear bed tail plate (3) which are fixedly connected through a cross beam (1) at the bottoms;

the bed board (4) is horizontally and movably arranged between the head board (2) and the tail board (3);

a lifting control mechanism (5) which is provided with a hand crank (6) and is arranged between the bed board (4) and the bed frame;

the limiting mechanism (7) is provided with a lever (8) and is used for fixing the position of the bed plate (4) after the lifting is finished;

the lifting control mechanism (5) is powered by the hand crank (6) to drive the bed plate (4) to lift, and the limiting mechanism (7) is driven by the lever (8) to fix the position of the bed plate (4);

the lift control mechanism (5) includes:

the pipe sleeve (501) is provided with at least one pair of pipe sleeves, the bottom ends of the pipe sleeves are fixedly arranged at the left side and the right side of the top of the cross beam (1), and the top ends of the pipe sleeves incline towards the direction away from each other;

a plurality of inclined support rods (502) with the bottom ends at least partially slidably mounted in the pipe sleeves (501) and the top ends abutting against the bottom surface of the bed plate (4);

the first sliding groove (503) is arranged on one side of the pipe sleeve (501) and is communicated with the inner cavity of the pipe sleeve;

the first strut (504) is slidably mounted in the first sliding groove (503), one end of the first strut is fixedly connected with the bottom end of the inclined supporting rod (502), and the other end of the first strut extends out of the first sliding groove (503);

a pushing mechanism (9) with a hand crank (6);

wherein, the hand crank (6) drives the pushing mechanism (9) to push the first support column (504) to slide in the first sliding groove (503).

2. A liftable bed according to claim 1, wherein the pushing mechanism (9) comprises:

the screw rods (901) are provided with a pair of adjacent end parts which are fixedly connected, and the two opposite ends are respectively rotatably connected with the inner wall of the cross beam (1) and penetrate through the bed tail plate (3) to extend out of the bed frame;

screw sleeves (902) which are provided with at least one pair and are respectively installed on the screw rods (901) in a transmission way;

a mounting plate (903) fixedly mounted on the top of the threaded sleeve (902);

a column (904) fixedly mounted on the top of the mounting plate (903) and having a side wall abutting against a side wall of the first strut (504); a

Wherein, the screw thread direction of each screw rod (901) is opposite, and the hand crank (6) is fixedly connected with the end part of the screw rod (901) extending out of the bedstead.

3. A liftable bed according to claim 2, wherein the pushing mechanism (9) further comprises:

a roller (905) rotatably mounted at one end of the first pillar (504) extending out of the first sliding groove (503);

the rolling groove (906) is vertically arranged on the side wall of the upright post (904) facing the first support post (504);

wherein the roller (905) rolls in the rolling groove (906).

4. A liftable bed according to claim 1, wherein the lifting control mechanism (5) further comprises:

a support column (907) fixedly mounted on the top of the beam (1);

the second chute (908) is obliquely arranged in the supporting column (907) and two ends of the second chute penetrate through the supporting column;

the middle part of the inclined supporting rod (502) is in sliding fit with the second sliding groove (908).

5. The liftable bed according to claim 1, further comprising:

a first sliding block (909) which is fixedly arranged at the top end of the inclined supporting rod (502);

a third sliding chute (910) which is arranged on the bottom surface of the bed plate (4) and extends along the transverse direction;

wherein, the top end of the first sliding block (909) is slidably arranged in the third sliding groove (910).

6. A liftable bed according to any one of claims 1 to 5, wherein the limiting mechanism (7) comprises:

the four sliding chutes (701) are provided with at least one pair and are respectively vertically arranged on the opposite side walls of the headboard (2) and the footboard (3);

a second sliding block (702) which is provided with a plurality of sliding blocks which slide in the sliding grooves (701) respectively;

the clamping blocks (703) are provided with a plurality of clamping blocks and are uniformly distributed on the side wall of the second sliding block (702) far away from the headboard (2) along the vertical direction;

a second pillar (705) which is vertically and fixedly arranged at one end of the top of the cross beam (1) close to the bed tail plate (3);

a chute five (704) vertically arranged on the side surface of the strut two (705);

a third sliding block (706) vertically and slidably mounted in the fifth sliding groove (704);

the middle part of the swing arm (707) is hinged with the top of the side surface of the second strut (705), one end of the swing arm extends to the lower part of the clamping block (703), and the other end of the swing arm extends to the outer side of the fifth sliding groove (704);

a fourth sliding block (708) fixedly installed on the side surface of the third sliding block (706);

a chute six (709) which is arranged on one side of the swing arm (locking 707) far away from the fixture block (703) and extends along the transverse direction;

the bottom plate (710) is fixedly arranged at the bottom of the side surface of the third sliding block (706);

a locking mechanism (10) for fixing the third slider (706) after the position adjustment;

the front end and the rear end of the bed plate (4) are fixedly connected with the second sliding blocks (702) respectively, the lever (8) is L-shaped, the middle of the lever is hinged to the side face of the second supporting column (705), the bent end of the lever (8) is abutted to the bottom face of the bottom plate (710), and the other end of the lever extends out of the rack.

7. A liftable bed according to claim 6, wherein the locking mechanism (10) comprises:

a chute seven (1001) disposed on the chute five (704) sidewall;

a fifth slider (1002) which is installed in the sliding groove seventh (1001) in a sliding mode along the transverse direction;

the limiting block (1003) is fixedly installed on the side wall, facing the third sliding block (706), of the fifth sliding block (1002);

the limiting grooves (1004) are distributed on the side wall of the third sliding block (706) facing the sliding groove (1001) along the vertical direction and used for clamping the limiting blocks (1003);

a spring (1005) arranged between the slide block five (1002) and the six opposite side walls of the limit groove (1004);

one end of the pull rod (1006) is fixedly arranged on the side wall of the slide block five (1002) facing the spring (1005), and the other end of the pull rod passes through the strut two (705) and extends out of the limiting groove (1004);

a pull handle (1007) which comprises a long rod, a short rod and a cross rod, wherein the two ends of the cross rod are respectively fixedly connected with the middle part of the long rod and the top end of the short rod;

the through hole penetrates through one end, far away from the limiting groove (1004), of the pull rod (1006) from top to bottom;

wherein, the short rod of the pull handle (1007) is inserted in the through hole.

8. The liftable bed according to claim 7, further comprising:

a bracket (1008) fixedly arranged on the side wall of the second support column (705) facing the headboard (2);

and the clamping groove (1009) is arranged at one end of the support (1008) far away from the second support column (705) and used for clamping the top end of the long rod of the pull handle (1007).

9. A lifting control method for a liftable bed according to claim 8, comprising the steps of:

s1: the pull handle (1007) is pulled towards the direction far away from the upright post (904) II, the slide block five (1002) slides in the slide block six, the limit block (1003) is separated from the limit groove (1004), the pull handle (1007) is rotated, the top end of the long rod of the pull handle (1007) is clamped in the clamp groove (1009), under the action of gravity, one end of the lever (8) extending out of the bed frame drops, the other end of the lever pushes the bottom plate (710) and the slide groove five (704) to rise, the swing arm (707) swings, and the top surface of one end of the lever far away from the slide groove five (704) is separated from and contacted with the bottom surface of the clamp block (703);

s2: the hand crank (6) is rotated, the screw sleeve (902) transversely moves on the screw rod (901), the mounting plate (903) moves along with the screw sleeve (902), the strut I (504) is pushed to obliquely move upwards or downwards in the sliding groove I (503), the obliquely arranged supporting rod (502) pushes the bed plate (4) to ascend or the bed plate (4) to descend, and the hand crank (6) stops rotating after the bed plate (4) is lifted to a proper height;

s3: lifting one end of the lever (8) extending out of the rack, enabling the other end of the lever (8) to be separated from the bottom plate (710) in contact, enabling the third sliding block (706) to descend in the fifth sliding groove (704) under the action of gravity, enabling the swing arm (707) to swing, and enabling the top surface of one end of the swing arm far away from the fifth sliding groove (704) to be abutted to the bottom surface of the clamping block (703);

s4: the pull handle (1007) is rotated, the top end of the long rod of the pull handle (1007) is separated from the clamping groove (1009), the spring (1005) resets and pushes the slide block five (1002) to slide towards the limiting groove (1004) in the sliding groove seven (1001), and the limiting block (1003) is clamped in the limiting groove (1004).

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