CN113261810A

CN113261810A - Bedstead capable of preventing bed sheet from running and facilitating bed arrangement and using method

Info

Publication number: CN113261810A
Application number: CN202110667189.XA
Authority: CN
Inventors: 李煜颖
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2021-08-17
Anticipated expiration: 2041-06-16
Also published as: CN113261810B

Abstract

The invention relates to the field of bed tools, in particular to a bed frame capable of preventing bed sheets from running out and facilitating bed arrangement and a using method thereof, the bed frame comprises a bed board and a bed support, the invention has the advantages that a mattress is placed on the bed board, a cross frame is driven to move through an electric push rod to prop two bed side boards apart, a gap between the bed side boards and the mattress is increased, meanwhile, the press board rotates to enlarge the gap between a headboard and the mattress, then the bed sheet is flatly paved on the mattress, the corners of the bed sheet are stuffed in the gap between the bed side boards and the mattress and the gap between the headboard and the mattress, then the cross frame is reset to enable the two bed side boards to retract to fix the corners of the bed sheet, meanwhile, the press board is reset to fix the corners of the bed sheet, the paving of the bed sheet is completed, the bed sheet is effectively prevented from running out in the using process, the housework load of arranging the bed sheet every day is reduced, meanwhile, the paving of the bed sheet is facilitated, the bed frame does not need to move the bed support or lift the bed sheet to stuff the corners into the gaps between the bed side boards and the mattress, thereby being convenient for the bed sheet to be replaced quickly.

Description

Bedstead capable of preventing bed sheet from running and facilitating bed arrangement and using method

Technical Field

The invention relates to the field of bedding, in particular to a bed frame capable of preventing bed sheets from running and facilitating bed arrangement and a using method thereof.

Background

In the life with faster and faster pace, more and more people pursue a good sleeping quality, so that a soft and comfortable mattress is suitable for students, in order to avoid the mattress being polluted, a bed sheet convenient to clean is laid on the mattress, but because the edge and corner of the bed sheet are not firmly fixed, the bed sheet is easy to run away in the using process, particularly for middle and primary school students with abundant vitality, the bed sheet is always indiscriminately made worse in the sleeping process, so that the bed sheet is required to be tidied every day, and the housework load is increased.

Disclosure of Invention

The invention provides a bedstead capable of preventing bed sheets from running and facilitating bed arrangement and a using method thereof, and aims to solve the problems that in the prior art, the edges and corners of the bed sheets are not firmly fixed, so that the bed sheets are easy to run in the using process, bed sheets are required to be arranged every day, and the housework load is increased.

The invention adopts the following technical scheme: the utility model provides a prevent that sheet runs position bedstead of being convenient for bed arrangement, including bed board and bed support, the top of bed support covers there is the bed board, and the bed board is used for placing mattress, its characterized in that: the bed comprises a bed tail plate, a bed head plate, a bed support, a bed plate supporting block, a bed plate, a cross frame, a stroke block, a pushing block and a support plate, wherein the bed tail plate and the bed head plate are movably arranged on two bed side plates of the bed support, the bed plate supporting block is symmetrically fixed on the surface of the bed support and used for supporting a bed plate, the two bed side plates are connected through a clamping structure, the clamping structure comprises the cross frame, the stroke block, the pushing block and the support plate, the cross frame is a telescopic frame composed of two groups of rotatable cross frames, two ends of the cross frame are slidably arranged on the two bed side plates, the joint parts of the two groups of cross frames which are mutually connected on the cross frame are rotatably arranged on the upper surfaces of the stroke block and the pushing block respectively, the stroke block and the pushing block are slidably arranged on the upper surface of the support plate, the support plate is arranged between the bed tail plate and the bed head plate, the pushing block is driven by a driving structure to move, and the driving structure is arranged on the support plate.

As a further improvement, the driving structure comprises a stroke groove, a pushing groove, an electric push rod and a through hole, wherein the stroke groove and the pushing groove are formed in the upper surface of the support plate, the stroke groove is close to the headboard, the through hole is formed in one side, close to the stroke groove, of the support plate, the electric push rod is fixed inside the pushing groove, the telescopic rod of the electric push rod faces the direction of the stroke groove, and the telescopic rod is connected with the pushing block.

As a further improvement, the clamping structure further comprises sliding blocks and sliding grooves, wherein the two ends of the cross frame are symmetrically hinged with four sliding blocks, the sliding grooves are symmetrically arranged on the inner walls of the two bed side plates, the sliding blocks are respectively slidably arranged inside the two sliding grooves, the stroke blocks are slidably arranged inside the stroke grooves, and the pushing blocks are slidably arranged inside the pushing grooves.

As further improvement, still including auxiliary structure, auxiliary structure includes connecting rod, ejector pin, dead axle, mounting groove and clamp plate, the one end of connecting rod is connected with the stroke piece, and articulated with the tail end of ejector pin behind the other end through-hole of connecting rod runs through the through-hole, and the connecting rod is sliding connection with the through-hole, the rotatable outside of installing in the dead axle of ejector pin, the dead axle is the L style of calligraphy, and on the dead axle was fixed in the mounting groove inner wall, the head end of ejector pin covered in the clamp plate internal surface, and the clamp plate is rotatable coupling with the head board, and the clamp plate turn to inside towards the mounting groove, when the mattress put bed board top back pressure plate surface cover in the mattress surface.

As a further improvement, the height of the cross frame is on the same horizontal line with the height of the bed board supporting block, namely, the cross frame is attached to the bottom surface of the bed board after the bed board is placed above the bed board supporting block.

As a further improvement, the height of the bed side plate and the height of the bed tail plate are both higher than that of the bed board, namely, the bed side plate and the bed tail plate surround the bottom of the mattress after the mattress is placed above the bed board.

A use method of a bed frame capable of preventing bed sheets from running and facilitating bed arrangement is characterized by comprising the following steps: the method comprises the following steps that firstly, an electric push rod is started to extend a telescopic rod, a push block is moved, so that a cross frame is deformed to extend towards two ends to prop open two bed side plates, meanwhile, a stroke block drives a connecting rod to be close to a stroke groove, and the connecting rod drives an ejector rod to rotate, so that the head end of the ejector rod is far away from the inner surface of a pressing plate; secondly, the handle extends into the mattress and the headboard and lightly presses a pressing plate to enable the pressing plate to rotate towards the mounting groove; thirdly, flatly paving the bed sheet on the mattress, and filling the corners of the bed sheet into the gaps between the bed side plates and the mattress and the gaps between the headboard and the mattress; and fourthly, reversely operating the second step, withdrawing the telescopic rods of the electric push rods, retracting the two bed side plates to clamp the bed sheet corners in the gaps between the bed side plates and the mattress, and simultaneously driving the pressing plates to return to the original positions to clamp the bed sheet corners in the gaps between the bed head plates and the mattress to finish the laying of the bed sheet.

From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages: the mattress is put on the bed board, the cross frame is driven by the electric push rod to open the two bed side boards, the gap between the bed side boards and the mattress is increased, simultaneously the press board rotates to enlarge the gap between the bed head board and the mattress, then the bed sheet is flatly paved on the mattress, the corners of the bed sheet are stuffed in the gap between the bed side plate and the mattress and the gap between the headboard and the mattress, then the cross frame is reset to enable the two bed side plates to retract to clamp the bed sheet corners in the gaps between the bed side plates and the mattress, meanwhile, the press plate is reset to clamp the edges and corners of the bed sheet in the gap between the headboard and the mattress, so that the bed sheet is paved, the bed sheet is effectively prevented from being dislocated in the using process, the housework workload of arranging the bed sheet every day is reduced, and meanwhile, the bed sheet is conveniently paved, the bed sheet corner is plugged into the gap between the bed side plate and the mattress or the gap between the bed head plate and the mattress without lifting the bed support or the mattress, so that the bed sheet can be quickly replaced.

Drawings

Fig. 1 is a schematic structural view of a bed plate placed on a bed support.

Fig. 2 is a schematic perspective view of a bed support.

Fig. 3 is a schematic structural diagram of a driving structure.

Fig. 4 is a schematic view of the clamping structure.

Fig. 5 is a schematic structural diagram of a in fig. 2.

Fig. 6 is a side view of the bed frame.

Fig. 7 is a schematic structural diagram of B in fig. 6.

Fig. 8 is a schematic top view of the bed support.

Fig. 9 is a schematic view of the structure of the unclamp platen.

Fig. 10 is a schematic view of the clamping structure expanding the bed side plate.

Fig. 11 is a schematic view of a mattress placed on a bed board.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1 to 11, a bed frame for preventing bed sheets from running out and facilitating bed arrangement comprises a bed plate 2 and a bed support 3, wherein the bed plate 2 covers the bed support 3, and a mattress 5 is placed on the bed plate 2.

As shown in fig. 1 to 8, the two bed side plates 31 of the bed frame 3 are movably installed between the bed end plate 32 and the bed head plate 33, and bed plate support blocks 34 are symmetrically fixed on the surface of the bed frame 3, the bed plate support blocks 34 are used for supporting the bed plate 2, so that the two bed side plates 31 can continuously support the bed plate 2 and the mattress 5 through the bed plate support blocks 34 on the surface of the bed end plate 32 and the bed head plate 33 after being removed. The two bed side plates 31 are connected through the clamping structure 41, the clamping structure 41 is arranged above the driving structure 42, the driving structure 42 is arranged between the bed tail plate 32 and the bed head plate 33, the auxiliary structure 44 is connected with the driving structure 42, the auxiliary structure 44 is arranged in the bed head plate 33, the bed mattress 5 is placed on the bed board 2, the driving structure 42 pushes the clamping structure 41 to prop the two bed side plates 31 apart, the gap between the bed side plates 31 and the bed mattress 5 is increased, meanwhile, the auxiliary structure 44 expands the gap between the bed head plate 33 and the bed mattress 5, then the bed sheet is flatly paved on the bed mattress 5, the corners of the bed sheet are stuffed in the gap between the bed side plates 31 and the bed mattress 5 and the gap between the bed head plate 33 and the bed mattress 5, the clamping structure 41 retracts the two bed side plates 31 to clamp the corners in the gap between the bed side plates 31 and the bed mattress 5, the auxiliary structure 44 clamps the corners in the gap between the bed head plate 33 and the bed mattress 5, can effectively prevent the sheet from running off the position in the use process, lighten the housework workload of arranging the sheet every day, and facilitate the laying of the bed sheet, without lifting the bed bracket 3 or the mattress 5 to plug the edge and corner of the sheet into the gap between the bed side plate 31 and the mattress 5 or the gap between the bed head plate 33 and the mattress 5, thereby facilitating the rapid replacement of the sheet.

As shown in fig. 2 to 3, the driving mechanism 42 includes a stroke slot 422, a pushing slot 423, an electric push rod 424 and a through hole 426, two ends of the support plate 421 are respectively installed inside the footboard 32 and the headboard 33, the support plate 421 improves the connection stability between the footboard 32 and the headboard 33, enhances the bearing force of the footboard 32 and the headboard 33, and reduces the risk of breaking the footboard 32 and the headboard 33 during use. The upper surface of the support plate 421 is provided with a stroke groove 422 and a pushing groove 423, the stroke groove 422 is close to the headboard 33, one side of the support plate 421 close to the stroke groove 422 is provided with a through hole 426, an electric push rod 424 is fixed inside the pushing groove 423, an expansion link 425 of the electric push rod 424 faces to the direction of the stroke groove 422, the expansion link 425 is connected with the clamping structure 41, and the expansion link 425 of the electric push rod 424 drives the clamping structure 41 to move so as to realize the opening and retraction of the two bed side plates 31.

As shown in fig. 4 and 8, the clamping structure 41 includes a cross frame 411, a sliding block 412, a stroke block 413, a pushing block 414 and a sliding groove 431, the cross frame 411 is an expansion frame composed of two sets of rotatable cross frames, and the cross frame 411 is preferably made of an aluminum alloy material and has the characteristics of high strength, difficulty in breaking, corrosion resistance, difficulty in oxidation and rusting. The two ends of the cross frame 411 are hinged to the auxiliary blocks 433 on the surfaces of the four sliding blocks 412, the sliding grooves 431 are symmetrically arranged on the inner walls of the two bed side plates 31, the sliding blocks 412 are slidably arranged inside the two sliding grooves 431, the connecting positions of the two groups of cross frames on the cross frame 411, which are mutually connected, are rotatably arranged on the upper surfaces of the stroke block 413 and the pushing block 414 respectively, the stroke block 413 is slidably arranged inside the stroke groove 422, the pushing block 414 is connected with the telescopic rod 425 of the electric push rod 424, and the pushing block 414 is slidably arranged inside the pushing groove 423. The telescopic rod 425 extending the electric push rod 424 drives the pushing block 414 to move along the pushing groove 423, so that the cross frame 411 deforms and extends towards two ends, the stroke block 413 is close to the pushing block 414 along the stroke groove 422, meanwhile, the sliding block 412 slides in the sliding groove 431, the deformed and extended cross frame 411 props the two bed side plates 31 apart, a gap between the bed side plates 31 and the bed mattress 5 is increased, then the bed sheet is flatly paved on the bed mattress 5, part of corners of the bed sheet are stuffed in the gap between the bed side plates 31 and the bed mattress 5, then the two bed side plates 31 retract to clamp the bed sheet, the bed sheet is prevented from running in the using process, the housework load of arranging the bed sheet every day is reduced, the cross frame 411 can play a certain supporting role on the corners of the bed sheet, and the risk that the corners of the bed sheet are dragged to become dirty on the ground is reduced.

As shown in fig. 6 to 7, the auxiliary structure 44 includes a connecting rod 441, a push rod 442, a fixed shaft 443, a mounting groove 444 and a pressing plate 445, one end of the connecting rod 441 is connected to the stroke block 413, the other end of the connecting rod 441 passes through the through hole 426 and is hinged to the tail end of the push rod 442, the connecting rod 441 is slidably connected to the through hole 426, the push rod 442 is rotatably mounted on the outer side of the fixed shaft 443, the fixed shaft 443 is L-shaped, the fixed shaft 443 is fixed to the inner wall of the mounting groove 444, the mounting groove 444 is disposed inside the headboard 33, the head end of the push rod 442 is disposed on the inner surface of the pressing plate 445, the pressing plate 445 is rotatably connected to the headboard 33, the pressing plate 445 is turned toward the inside of the mounting groove 444, when the mattress 5 is placed above the bed board 2, the outer surface of the pressing plate 445 is covered on the surface of the mattress 5, when the two bed side boards 31 are spread, the stroke block 413 drives the connecting rod 441 to move along the through hole 426 to approach the stroke groove 422, the connecting rod 441 drives the tail end of the ejector rod 442 to rotate in the mounting groove 444 around the fixed shaft 443, so that the head end of the ejector rod 442 is far away from the inner surface of the pressing plate 445, the pressing plate 445 is lightly touched, the pressing plate 445 rotates towards the mounting groove 444 under the action of gravity, a gap between the headboard 33 and the mattress 5 is enlarged, then the bed sheet is flatly paved on the mattress 5, part of corners of the bed sheet are plugged into the gap between the headboard 33 and the mattress 5, when the two bed side plates 31 retract to clamp the bed sheet, the pressing plate 445 can return to the original position to clamp the corners of the bed sheet in the gap between the headboard 33 and the mattress 5, the bed sheet is prevented from running during use, and the daily housework load of arranging the bed sheet is reduced.

The height of the cross frame 411 and the height of the bed board supporting block 34 are on the same horizontal line, namely, after the bed board 2 is placed above the bed board supporting block 34, the cross frame 411 is attached to the bottom surface of the bed board 2, the cross frame 411 is used for assisting the bed board supporting block 34 to support the bed board 2, so that the stress of the bed board 2 is more balanced, the bearing capacity of the bed board 2 is enhanced, and the risk of breaking the bed board 2 in the using process is reduced.

The height of bed side board 31 and tailstock board 32 all is higher than the height that bed board 2 was located, promptly after bed pad 5 was put to bed board 2 top, bed side board 31 and tailstock board 32 surround the bottom of bed pad 5, utilize bed side board 31, tailstock board 32 and headboard 33 restriction bed pad 5's placement space, avoid bed pad 5 skew bed board 2 in the use, cause the corner collapse of bed pad 5 to reduce the life of bed pad 5.

The mattress 5 is placed on the bed board 2, when a bed sheet needs to be laid, the electric push rod 424 is started to extend the telescopic rod 425, the starting and stopping of the electric push rod 424 can be controlled through a remote control technology, the remote control technology is a technology for remotely controlling and monitoring a controlled object, and the remote control technology is a comprehensive technology formed by utilizing an automatic control technology, a communication technology and a computer technology. The expansion link 425 drives the pushing block 414 to move along the pushing slot 423, so that the cross frame 411 deforms and extends towards two ends, the stroke block 413 approaches the pushing block 414 along the stroke slot 422, the sliding block 412 slides in the sliding slot 431, the deformed and extended cross frame 411 props the two bed side plates 31 apart, the gap between the bed side plates 31 and the mattress 5 is increased, meanwhile, the stroke block 413 moves to drive the connecting rod 441 to move close to the stroke slot 422 along the through hole 426, the connecting rod 441 drives the tail end of the mandril 442 to rotate around the fixed shaft 443 in the mounting slot 444, so that the head end of the mandril 442 is far away from the inner surface of the pressing plate 445, then the handle extends into the mattress 5 and the head plate 33 to slightly push the pressing plate 445, the pressing plate 445 rotates towards the mounting slot 444 under the action of the gravity of the pressing plate 445, the gap between the head plate 33 and the mattress 5 is enlarged, then the bed is flatly laid on the mattress 5, so that the corner bed sheet is stuffed in the gap between the bed side plate 31 and the mattress 5 and the gap between the bed head plate 33 and the mattress 5, then the telescopic rod 425 of the electric push rod 424 is retracted, the two bed side plates 31 are retracted to clamp the edges of the bed sheet in the gap between the bed side plates 31 and the mattress 5, meanwhile, the pressing plate 445 can return to the original position to clamp the edges of the bed sheet in the gap between the headboard 33 and the mattress 5, the laying of the bed sheet is completed, the bed sheet is prevented from running away in the using process, the housework load of arranging the bed sheet every day is reduced, meanwhile, the structure is simple, the operation is easy, the laying of the bed sheet is convenient, the bed sheet support 3 or the mattress 5 does not need to be moved to lift the bed support 3 or the mattress 5, and the edges of the bed sheet are plugged in the gap between the bed side plates 31 and the mattress 5 or the gap between the headboard 33 and the mattress 5, so that the bed sheet can be quickly replaced.

A use method of a bed frame capable of preventing bed sheets from running and facilitating bed arrangement is characterized by comprising the following steps:

firstly, pressing the remote controller to start the electric push rod 424 to extend the telescopic rod 425, the telescopic rod 425 drives the pushing block 414 to move along the pushing groove 423, so that the cross frame 411 deforms and extends towards two ends, the stroke block 413 is close to the pushing block 414 along the stroke groove 422, the sliding block 412 slides in the sliding groove 431, and the deformed and extended cross frame 411 props up the two bed side plates 31 to increase the gap between the bed side plates 31 and the mattress 5; meanwhile, the stroke block 413 moves to drive the connecting rod 441 to move close to the stroke groove 422 along the through hole 426, and the connecting rod 441 drives the tail end of the ejector rod 442 to rotate in the mounting groove 444 around the fixed shaft 443, so that the head end of the ejector rod 442 is far away from the inner surface of the pressing plate 445;

secondly, the handle extends into the mattress 5 and the headboard 33 to slightly push the pressing plate 445, and the pressing plate 445 rotates towards the installation groove 444 under the action of gravity to enlarge the gap between the headboard 33 and the mattress 5;

thirdly, flatly paving the bed sheet on the mattress 5, and filling the corners of the bed sheet into the gap between the bed side plate 31 and the mattress 5 and the gap between the headboard 33 and the mattress 5;

fourthly, reversely operating the second step, withdrawing the telescopic rod 425 of the electric push rod 424 to retract the two bed side plates 31 to clamp the corners of the bed sheet in the gap between the bed side plates 31 and the mattress 5, and simultaneously driving the pressing plate 445 to return to the original position to clamp the corners of the bed sheet in the gap between the headboard 33 and the mattress 5, so as to complete the laying of the bed sheet, prevent the bed sheet from running away in the using process, reduce the housework workload of daily arrangement, and simultaneously have simple structure and easy operation, thereby being convenient for the laying of the bed sheet, and being unnecessary to move the bed support 3 or the mattress 5 to plug the corners of the bed sheet in the gap between the bed side plates 31 and the mattress 5 or the gap between the headboard 33 and the mattress 5, thereby facilitating the quick replacement of the bed sheet.

The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing the present invention.

Claims

1. The utility model provides a prevent that sheet runs position bedstead of being convenient for bed arrangement, including bed board and bed support, the top of bed support covers there is the bed board, and the bed board is used for placing mattress, its characterized in that: the bed comprises a bed tail plate, a bed head plate, a bed support, a bed plate supporting block, a bed plate, a cross frame, a stroke block, a pushing block and a support plate, wherein the bed tail plate and the bed head plate are movably arranged on two bed side plates of the bed support, the bed plate supporting block is symmetrically fixed on the surface of the bed support and used for supporting a bed plate, the two bed side plates are connected through a clamping structure, the clamping structure comprises the cross frame, the stroke block, the pushing block and the support plate, the cross frame is a telescopic frame composed of two groups of rotatable cross frames, two ends of the cross frame are slidably arranged on the two bed side plates, the joint parts of the two groups of cross frames which are mutually connected on the cross frame are rotatably arranged on the upper surfaces of the stroke block and the pushing block respectively, the stroke block and the pushing block are.

2. The bedstead capable of preventing bed sheet running positions and facilitating bed tidying according to claim 1, wherein: the driving structure comprises a stroke groove, a pushing groove, an electric push rod and a through hole, the upper surface of the support plate is provided with the stroke groove and the pushing groove, the stroke groove is close to the headboard, the through hole is formed in one side, close to the stroke groove, of the support plate, the electric push rod is fixed inside the pushing groove, the telescopic rod of the electric push rod faces to the direction of the stroke groove, and the telescopic rod is connected with the pushing block.

3. The bedstead capable of preventing bed sheet running positions and facilitating bed tidying according to claim 1, wherein: the clamping structure further comprises sliding blocks and sliding grooves, the two ends of the cross frame are symmetrically hinged with four sliding blocks, the sliding grooves are symmetrically arranged on the inner walls of the two bed side plates, the sliding blocks are slidably arranged inside the two sliding grooves respectively, the stroke blocks are slidably arranged inside the stroke grooves, and the pushing blocks are slidably arranged inside the pushing grooves.

4. The bedstead capable of preventing bed sheet running positions and facilitating bed tidying according to claim 1, wherein: still including auxiliary structure, auxiliary structure includes connecting rod, ejector pin, dead axle, mounting groove and clamp plate, the one end of connecting rod is connected with the stroke piece, and the other end of connecting rod runs through behind the through-hole articulated with the tail end of ejector pin, and the connecting rod is sliding connection with the through-hole, the rotatable outside of installing in the dead axle of ejector pin, the dead axle is the L style of calligraphy, and on the dead axle was fixed in the mounting groove inner wall, the mounting groove was located inside the head board, the head end of ejector pin covers in the clamp plate internal surface, and clamp plate and head board be rotatable coupling, and the turning to of clamp plate is inside towards the mounting groove, puts bed board top back pressure plate surface when the mattress and covers in the mattress surface.

5. The bedstead capable of preventing bed sheet running positions and facilitating bed tidying according to claim 3, wherein: the height of the cross frame and the height of the bed board supporting block are on the same horizontal line, namely, the cross frame is attached to the bottom surface of the bed board after the bed board is placed above the bed board supporting block.

6. The bedstead capable of preventing bed sheet running positions and facilitating bed tidying according to claim 1, wherein: the height of the bed side plate and the height of the bed tail plate are both higher than the height of the bed board, namely, the bed side plate and the bed tail plate surround the bottom of the bed mattress after the bed mattress is placed above the bed board.

7. A use method of a bed frame capable of preventing bed sheets from running and facilitating bed arrangement is characterized by comprising the following steps:

the method comprises the following steps that firstly, an electric push rod is started to extend a telescopic rod, a push block is moved, so that a cross frame is deformed to extend towards two ends to prop open two bed side plates, meanwhile, a stroke block drives a connecting rod to be close to a stroke groove, and the connecting rod drives an ejector rod to rotate, so that the head end of the ejector rod is far away from the inner surface of a pressing plate;

secondly, the handle extends into the mattress and the headboard and lightly presses a pressing plate to enable the pressing plate to rotate towards the mounting groove;

thirdly, flatly paving the bed sheet on the mattress, and filling the corners of the bed sheet into the gaps between the bed side plates and the mattress and the gaps between the headboard and the mattress;

and fourthly, reversely operating the second step, withdrawing the telescopic rods of the electric push rods, retracting the two bed side plates to clamp the bed sheet corners in the gaps between the bed side plates and the mattress, and simultaneously driving the pressing plates to return to the original positions to clamp the bed sheet corners in the gaps between the bed head plates and the mattress to finish the laying of the bed sheet.