CN206138325U - Berth ladder device that is suitable for double -deck sick bed and has storing function - Google Patents

Abstract

The utility model discloses a berth ladder device that is suitable for double -deck sick bed and has storing function, it makes a plurality of step expand the actuating mechanism who does all can with the drive of contracting the action to include a plurality of sliding connection's in proper order step and provide. The utility model discloses a berth ladder device makes things convenient for entourage and patient upper bed from top to bottom, and the berth ladder device can switch between development condition and contraction state, reduces the space that occupies, and at the inside storing box that to pull out that is equipped with of step for store up the deposit -holding article, increase storing space, the make full use of resource.

Description

A bed ladder device suitable for bunk beds and having a storage function

technical field

The utility model belongs to the technical field of medical appliances. Specifically, the utility model relates to a bed ladder device which is suitable for double-layer sick beds and has a storage function.

Background technique

Due to the shortage of medical housing resources, most hospital wards are currently in short supply. Not only are the beds in the existing wards crowded and the space is small, but the corridors are often full of patients. In the case of a serious shortage of beds for inpatients, double-decker beds will have a large application market. Double-decker beds need to be equipped with a bed ladder device. The ordinary bed ladder has a simple structure and is fixed on the ground. It is fixedly connected with the bed ladder. Not only does it take up a lot of space in the ward, but the structure is not flexible and the function is single, so it is not suitable for use in the ward.

Utility model content

The utility model aims at at least solving one of the technical problems existing in the prior art. For this reason, the utility model provides a kind of bed ladder device that is suitable for double-deck hospital bed and has storage function, and purpose is to facilitate the accompanying personnel and patient to get on and off the upper bed.

In order to achieve the above object, the technical solution adopted by the utility model is: a bed ladder device suitable for double-decker hospital beds and having a storage function, which includes a plurality of steps that are slidably connected in sequence and provides a plurality of steps for unfolding and storing. The drive mechanism for the driving force of the retraction action, and a pull-out storage box is provided inside the steps.

The drive mechanism includes a first motor arranged on the lowermost step, a first gear arranged on the first motor, and a rack placed horizontally below the step and meshed with the first gear. Driven by the drive, the first gear rolls on the rack and drives multiple steps to expand or contract.

The driving mechanism also includes a second motor and a second gear arranged on the second motor, the second gear meshes with the rack, driven by the second motor, the second gear drives the rack to move, and the rack passes through The first gear and the first motor drive the multiple steps to expand or contract.

The described bed ladder device suitable for bunk beds and having a storage function also includes a limit rod vertically arranged on the uppermost step, the top surface of the rack is provided with a The limit slot for the limit rod to fit into.

A total of four steps are arranged in the vertical direction.

The bed ladder device of the utility model is suitable for double-layer sick beds and has a storage function, which is convenient for escorts and patients to go up and down the upper bed, and the bed ladder device can be switched between the expanded state and the contracted state, reducing the occupied space; and There is a pull-out storage box inside the ladder for storing items, increasing storage space and making full use of resources.

Description of drawings

This manual includes the following drawings, the contents shown are:

Fig. 1 is the structural representation of the double-deck hospital bed with bed ladder device of the present utility model;

Fig. 2 is a schematic structural view of the bed body of a double-deck hospital bed;

Fig. 3 is the structural representation of adjustment device;

Fig. 4 is a schematic structural view of the folding table when it is in an unfolded state;

Fig. 5 is a schematic structural view of the folding table when it is in a folded state;

Fig. 6 is a schematic diagram of the front structure of the bed ladder device;

Fig. 7 is a schematic diagram of the rear structure of the bed ladder device;

Fig. 8 is the structural representation of lifting device;

Fig. 9 is a schematic structural view of the suspension device;

Fig. 10 is the structural representation of the bed body with suspension device;

Labeled in the figure:

1. The first bed body; 101. The first bed board; 102. The flipped bed board; 103. The bed leg; 104. The shelf; 105. The storage compartment;

2. The second bed body; 201. The second bed board; 202. The headboard;

3. Adjusting device; 301, first support; 302, adjusting rod; 303, ejector rod; 304, rotating frame; 305, handle;

4. Folding table; 401, first connecting rod; 402, second connecting rod; 403, third connecting rod; 404, table board; 405, table base; 406, card slot; 407, angle adjustment rod; 408, the first 409, locking bolt; 410, locking lever; 411, first chute; 412, second support; 413, pull bar; 414, third support; 415, locking hook; 416, The fourth support; 417, the storage tank; 418, the second limit rod; 419, the second chute; 420, the block; 421, the hanging ring;

5. Bed ladder device; 501, middle step; 502, rack; 503, first motor; 504, first gear; 505, second motor; 506, second gear; 507, bottom step; 508, Top step; 509, the third limit rod; 510, accommodating groove; 511, storage box; 512, limit groove;

6. Lifting device; 601, lifting bed board; 602, guide rod; 603, lifting rod;

7. Suspension device; 701, track; 702, hook;

8. Support rod.

detailed description

Next, with reference to the accompanying drawings, through the description of the embodiments, the specific implementation of the present utility model will be further described in detail, the purpose is to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solutions of the present utility model , and contribute to its implementation.

Figure 1 shows a double-deck hospital bed with a bed ladder device of the present invention, which mainly includes a first bed body 1, a second bed body 2, a folding table 4, an adjustment device 3 and a bed ladder device 5 of the present invention. The first bed body 1 has a first bed board 101 and a rotatable overturning bed board 102 arranged on the first bed board 101; the second bed body 2 is arranged on the first bed body 1 and has a The second bed board 201; the folding table 4 is connected with the second bed body 2, and is located between the second bed board 201 and the first bed board 101, and can switch between the unfolded state and the folded state; the adjustment device 3 is arranged on The first bed body 1 is connected to the reversible bed board 102 and is used to adjust the angle between the first bed board 101 and the reversible bed board 102 .

Specifically, as shown in Figure 1, the double-deck hospital bed forms a double-layer structure by arranging the first bed body 1 positioned below and the second bed body 2 positioned above, and the second bed body 2 can be used as an accompanying person to rest at ordinary times. Bed, under the comparatively tense situation of bed position, also can be used as the patient's bed of mild condition without mobility obstacle, and the first bed body 1 is often used as the patient's use. Both the upper and lower beds can be used, so that the upper space of the ward can be fully utilized and the occupation of the ground space of the ward can be reduced.

As shown in Figures 1 and 2, the first bed body 1 includes vertically arranged bed legs 103, a horizontally arranged first bed board 101, and an overturned bed board 102 that is rotationally connected to the first bed board 101, and the overturned bed board 102 can rotate up and down. , the rotation centerline of the overturned bed board 102 is in the horizontal plane and perpendicular to the length direction of the first bed board 101 . The first bed board 101 is fixedly connected with the bed legs 103, and the bed legs 103 provide support for the first bed board 101, so that the first bed board 101 is away from the ground. The overturning bed board 102 is arranged so that it can be turned up towards the end of the bed at the head of the bed position of the first bed board 101, and can form a backrest that provides support when the patient sits up.

As shown in Figure 2, the flipped bed board 102 is a rectangular flat plate, the end of the first bed board 101 has a rectangular groove for accommodating the flipped bed board 102, and the end of the flipped bed board 102 is provided with a pin shaft that is rotatably connected with the first bed board 101. The rotation center line of the bed board 102 is located between the two ends of the first bed board 101 , and after the flipped bed board 102 is turned up, the angle between it and the first bed board 101 is greater than 90 degrees. The other end of the overturned bed board 102 can be aligned with the head of the first bed board 101 after being completely laid down, so as to form a complete bed board.

As shown in Figure 1, as preferably, by setting the adjustment device 3 on the first bed body 1, the angle between the flipped bed board 102 and the first bed board 101 can be adjusted conveniently and quickly as required, and the flipped bed board 102 Adjust to a more comfortable sitting position for the patient. As shown in Figure 3, the adjustment device 3 includes a first support 301 arranged on the first bed body 1, an adjustment rod 302 threadedly connected with the first support 301, a push rod 303 connected with the adjustment rod 302 and a The push rod 303 is rotatably connected to the swivel frame 304 for applying a force to rotate the overturned bed board 102 . The first support 301 is arranged below the first bed board 101 and is connected with the first bed board 101, the adjusting rod 302 and the ejector rod 303 are placed horizontally below the first bed board 101, and the adjusting rod 302 is screwed to the first support 301 , the outer surface of the adjusting rod 302 is provided with threads, and correspondingly, a threaded hole for the adjusting rod 302 to pass through is provided inside the first support 301 . One end of the push rod 303 is rotatably connected to the end of the adjusting rod 302 , and the other end is rotatably and slidably connected to the swivel frame 304 . The swivel frame 304 is located below the flipped bed board 102. One end of the swivel rack 304 is connected to the push rod 303, and the other end is in contact with the bottom surface of the flipped bed board 102. Rotationally connected, the rotation centerline of the rotating frame 304 is parallel to the rotation centerline of the overturning bed board 102 , and the rotation centerline of the rotating frame 304 is located between the rotation centerline of the turning bed board 102 and the end of the first bed board 101 . One end of the adjusting rod 302 protrudes out of the first support 301 , and a handle 305 for operating the adjusting rod 302 to rotate is provided at the end. When it is necessary to adjust the angle of the overturned bed board 102, by rotating the handle 305, the adjustment rod 302 is rotated relative to the first support 301 and can move along a straight line. The rotating frame 304 is turned over, and when the rotating frame 304 is turned over, the turned bed board 102 will be pushed upwards to rotate.

As shown in Fig. 1 and Fig. 2, the second bed body 2 includes a second bed board 201 arranged horizontally and a headstock 202 arranged at both ends of the second bed board 201, the second bed board 201 is located above the first bed board 101 and both In parallel, the length direction of the first bed board 101 is also parallel to the length direction of the second bed board 201 . The second bed board 201 is fixedly connected with the bed legs 103 below, and is supported by the bed legs 103 .

As shown in Figure 1, the folding table 4 is arranged on the second bed body 2, and the folding table 4 can be unfolded in the space between the first bed board 101 and the second bed board 201, which can facilitate the patients in the lower berth to have meals, Read books, read newspapers, use laptops, etc., and can adjust the tilt angle and height of the desktop according to needs, which is convenient for use in different sitting postures; it can be folded and stored when not in use to reduce the occupied space. As shown in Figures 4 and 5, preferably, the folding table 4 includes a height adjustment frame connected to the second bed body 2, a table base 405 connected to the height adjustment frame, rotatably arranged on the table base 405 and used The table 404 on which items are placed and the angle adjustment rod 407 rotatably connected to the table 404 and used to provide support for the table 404 , the rotation centerline of the table 404 is parallel to the rotation centerline of the flipped bed 102 . The table base 405 is the lowermost part on the folding table 4, and the height adjustment frame can be telescopic in the vertical direction to adjust the height of the table base 405 and the table board 404 thereon. The table board 404 is set to be rotatable, so that the inclination angle of the table board 404 can be adjusted, which is convenient for the patient to use in different sitting postures.

As shown in FIG. 4 and FIG. 5 , the upper end of the height adjustment frame is connected with the second bed board 201 , and the lower end is connected with the table base 405 . The table board 404 is configured to be turned back and forth above the table base 405 , and correspondingly provided on the top surface of the table base 405 are a plurality of slots 406 for inserting the angle adjusting rod 407 . One end of the angle adjusting rod 407 is rotatably connected with the table board 404, and the other end is used for inserting into the slot 406 provided on the top surface of the table base 405, and the slot 406 acts as a limiter. When the angle adjustment rod 407 is embedded in the card slot 406, the angle adjustment rod 407 can provide support to the table board 404 to prevent the table board 404 from falling backwards, and the card slot 406 on the table base 405 is along the rotation of the table board 404 There are multiple sets in the direction perpendicular to the center line, and the inclination angle of the table board 404 can be adjusted by snapping the angle adjustment rod 407 into different slots 406 .

As shown in Fig. 4 and Fig. 5, as a preference, the height adjustment frame includes a second support 412 fixedly connected with the second bed body 2, a first connecting rod 401 rotatably connected with the second support 412, and a first connecting rod 401 connected with the first The connecting rod 401 and the second connecting rod 402 that is rotatably connected to the table base 405, the third connecting rod 403 that is rotatably connected with the second connecting rod 402 and is slidably connected with the table base 405, and is used to make the first connecting rod 401 and the second connecting rod 401 Rod 402 holds the first locking mechanism relatively fixed. The first connecting rod 401, the second connecting rod 402 and the third connecting rod 403 are sequentially connected to form a connecting rod mechanism. The second support 412 is fixedly connected to the bottom surface of the second bed board 201. The seat 412 is connected in rotation, the other end of the first connecting rod 401 is connected in rotation with one end of the second connecting rod 402, the other end of the second connecting rod 402 is connected in rotation with the table base 405, and one end of the third connecting rod 403 is connected with the second connecting rod 403. The rod 402 is rotatably connected, and the other end is slidingly connected to the table base 405 . The connection point between the third connecting rod 403 and the second connecting rod 402 is located between the two ends of the second connecting rod 402 . The connecting point between the third connecting rod 403 and the second connecting rod 402, the connecting point between the second connecting rod 402 and the table base 405 and the connecting point between the third connecting rod 403 and the table base 405 are in a triangular distribution, and the third connecting rod 403 is It is used to provide tension to the table base 405 so that the table base 405 can maintain a horizontal suspension state.

As shown in FIGS. 4 and 5 , preferably, the first locking mechanism includes a first limit rod 408 arranged on the first connecting rod 401 , a locking bolt 409 threadedly connected with the second connecting rod 402 and The locking rod 410 is sleeved on the first limiting rod 408 and the locking bolt 409 and fixed by the locking bolt 409. The locking rod 410 has a first slide for the first limiting rod 408 and the locking bolt 409 to be embedded. Groove 411. After the first locking mechanism is unlocked, the angle between the first link 401 and the second link 402 can be adjusted, so that the length of the height adjustment frame can be adjusted. After the height adjustment frame is adjusted to a suitable length, the first connecting rod 401 and the second connecting rod 402 are kept fixed by the locking of the first locking mechanism, so as to prevent the table base 405 from falling down. The first limiting rod 408 is vertically arranged on the first connecting rod 401, and the locking bolt 409 is vertically arranged on the second connecting rod 402. The length direction of the rod 401 is vertical and parallel to the rotation centerlines of the first connecting rod 401 and the second connecting rod 402 . The first limiting rod 408 is located between the two ends of the first connecting rod 401, and the locking nut is located between the two ends of the second connecting rod 402, and the second connecting rod 402 is provided with a thread for inserting the locking nut hole. The locking rod 410 is a long straight rod, and the first chute 411 is arranged through the thickness direction of the locking rod 410 and is a long slot extending along the length direction of the locking rod 410 . The diameter of the first limiting rod 408 is equal to the width of the first chute 411, the head diameter of the locking bolt 409 is greater than the width of the first chute 411, the first limiting rod 408 plays a guiding and limiting role, Tighten the locking bolt 409, the head of the locking bolt 409 can cooperate with the second connecting rod 402 to clamp the locking rod 410, and the first stop rod 408 can prevent the first connecting rod 401 from swinging, so that the first The connecting rod 401 is locked and fixed with the second connecting rod 402 .

As shown in Fig. 4 and Fig. 5, as preferably, on the side of table base 405, be provided with the second chute 419 that allows the lower end of third connecting rod 403 to embed, the second chute 419 is along with table board 404 The long groove extending in the direction perpendicular to the rotation center line, the upper end of the third connecting rod 403 is hinged with the second connecting rod 402, and the lower end of the third connecting rod 403 can slide in the second slide groove 419.

As shown in Fig. 4 and Fig. 5, preferably, the folding table 4 further includes a connecting rod 401 connected with the first connecting rod 401 and used to keep the first connecting rod 401 and the second bed body 2 relative to each other when the folding table 4 is in an unfolded state. Fixed second locking mechanism. The second locking mechanism includes a third support 414 connected to the second bed body 2, a second limit rod 418 arranged on the first connecting rod 401, and a second limit rod 418 which is rotatably connected with the third support 414 and used for locking the second The limit rod 418 exerts a pulling force on the pull rod 413 . The third support 414 is fixedly connected to the bottom surface of the second bed board 201 , and the third support 414 is located above the table base 405 . The second limit rod 418 is vertically arranged on the first connecting rod 401, and the length direction of the second limit rod 418 is perpendicular to the length direction of the first connecting rod 401 and parallel to the rotation centerline of the first connecting rod 401 . The first limiting rod 408 and the second limiting rod 418 are parallel and both protrude toward one side of the first connecting rod 401 respectively, and the second limiting rod 418 is located between the first limiting rod 408 and the first connecting rod. 401 between the ends connected to the second support 412 . The pull rod 413 is a long rod, one end of the pull rod 413 is rotatably connected to the third support 414, and the other end is used to hook the second limit rod 418, and this end has an L-shaped hook structure, and the pull rod 413 passes through the hook structure The second limit rod 418 located obliquely below can be hooked, and by applying a pulling force to the second limit rod 418, the rotation of the first connecting rod 401 relative to the second support 412 and the second bed body 2 can be prevented. After the table 4 is unfolded, the angle between the first connecting rod 401 and the second bed board 201 is kept constant, which improves safety and reliability.

As shown in Fig. 4 and Fig. 5, as a preference, a plurality of second limit rods 418 are arranged on the first connecting rod 401 along its length direction, and the distance between two adjacent second limit rods 418 ensures that Let the hook structure of the pull rod 413 pass through. The pull rod 413 hooks the second limit rod 418 at different positions through rotation, so that the angle between the first connecting rod 401 and the second bed board 201 can be adjusted, and then the length of the height adjustment frame can also be adjusted.

As shown in Fig. 4 and Fig. 5, preferably, the folding table 4 further includes a device that is connected to the second bed body 2 and is used to keep the table base 405 and the second bed body 2 relatively fixed when the folding table 4 is in a folded state. Third locking mechanism. The third locking mechanism includes a fourth support 416 connected to the second bed body 2, a hanging ring 421 connected to the table base 405, and a locking hook that is rotatably connected to the fourth support 416 and used to hook the hanging ring 421 415. The fourth support 416 is fixedly connected to the bottom surface of the second bed board 201 , the fourth support 416 is located above the table base 405 , and the fourth support 416 is located between the second support 412 and the third support 414 . The hanging ring 421 and the second chute 419 are jointly arranged on the same side of the table base 405, the upper end of the locking hook 415 is rotationally connected with the fourth support 416, and the lower end is used to hook the hanging ring 421, and the locking hook 415 The lower end is an L-shaped hook structure, through which the locking hook 415 can hook the hanging ring 421 below, and apply a pulling force to the hanging ring 421, which can prevent the table base 405 from falling, and make the table base 405 foldable after the folding table 4 is folded. 405 remains relatively fixed with the second bed board 201 to improve safety and reliability.

As shown in Figure 4 and Figure 5, as a preference, the second support 412, the first connecting rod 401, the second connecting rod 402 and the third connecting rod 403 are all provided with two parallel, two second support 412 is on the same straight line parallel to the width direction of the second bed board 201, the two first connecting rods 401 are respectively connected to a second support 412 in rotation, and the two second connecting rods 402 are respectively connected to a first connecting rod 401 Rotationally connected, two third connecting rods 403 are respectively rotatably connected to a second connecting rod 402, and the ends of the two third connecting rods 403 are respectively slidingly connected to the table base 405 on one side of the table base 405, correspondingly on the table base 405. A second sliding slot 419 is provided on two opposite sides of the base 405 . Correspondingly, there are two first locking mechanisms and two third locking mechanisms, the two first locking mechanisms are respectively connected to a first connecting rod 401 and a second connecting rod 402, and the two third locking mechanisms They are respectively arranged on one side of the table base 405, and one second locking mechanism is arranged.

As shown in FIGS. 4 and 5 , preferably, the inside of the table base 405 also has a storage tank 417 located below the table board 404 and used for storing items. The opening through which items enter and exit.

As shown in Figure 1, the bed ladder device 5 of the present invention is located outside the first bed body 1 and can be switched between the expanded state and the contracted state. Through the bed ladder device 5, the accompanying staff, patients or other related personnel can It is very convenient to go up and down the second bed body 2, and the bed ladder device 5 can be contracted to reduce the occupied space.

As shown in FIG. 6 and FIG. 7 , preferably, the bed ladder device 5 of the present invention includes a plurality of sequentially slidably connected steps and a driving mechanism for expanding and contracting the plurality of steps. A plurality of steps of the bed ladder device 5 are arranged sequentially from top to bottom, and the moving directions of each step are parallel, and the moving direction of each step is located in the horizontal plane and perpendicular to the length direction of the first bed board 101 . There is a sliding connection between two adjacent steps, and among the two adjacent steps, the lower step provides support for the upper step. Among the multiple steps of the bed ladder device 5, the lowermost step is the bottom step 507 connected to the drive mechanism, the uppermost step is the top step 508, and the steps at the rest of the positions are at the bottom. There is at least one middle step 501 between the step 507 and the top step 508 . And when the bed ladder device 5 is expanding and contracting, the bottom step 507 first moves along the horizontal direction, and then drives the middle step 501 and the top step 508 to move along the horizontal direction until each step fully stretches out or Complete contraction; when each step is unfolded, the formed bed ladder device 5 has a step structure; when each step is contracted, all the steps are on the same vertical line.

As shown in FIGS. 6 and 7 , preferably, the drive mechanism includes a first motor 503 disposed in the accommodating groove 510 in the lowermost step 507 near the second motor end, and a motor shaft disposed on the first motor 503 The first gear 504 on the top and the rack 502 lying horizontally below the steps and meshing with the first gear 504 . The first motor 503 is vertically arranged on the bottom step 507, and the length direction of the rack 502 is parallel to the moving direction of each step. Driven by the first motor 503, the first gear 504 rolls on the rack 502 And drive the bottom step 507 to move back and forth in a straight line along the horizontal direction, and the bottom step 507 further drives other steps above to move.

As shown in FIG. 6 and FIG. 7 , preferably, the driving mechanism further includes a second motor 505 and a second gear 506 arranged on the motor shaft of the second motor 505 and meshing with the rack 502 . The axis of the first motor 503 is parallel to the axis of the second motor 505, and the position of the second motor 505 and the first bed board 101 remains relatively fixed. Driven by the second motor 505, the second gear 506 rotates and drives the rack 502 to move horizontally.

As preferably, the bed ladder device 5 of the present utility model also includes a third stop rod 509 vertically arranged on the uppermost step, and the top surface of the rack 502 allows the third stop rod 509 to be embedded in the limit position. The groove 512, the third limiting rod 509 cooperates with the limiting groove 512 to play a supporting and limiting role. As shown in Figures 6 and 7, the third limit rod 509 is vertically arranged on the top step 508, the length direction of the third limit rod 509 is parallel to the length direction of the rack 502, and the limit groove 512 is The long slot disposed on the top surface of the rack 502 and extending along the length direction of the rack 502 , the limit slot 512 is used to limit the stroke of the rack 502 when it makes a reciprocating linear motion.

As shown in Figures 6 and 7, preferably, the bottom of the bottom step 507 is provided with an accommodation groove 510 for accommodating the rack 502, the first motor 503 and the first gear 504, and the bed ladder device 5 is in a contracted state , the rack 502 is accommodated in the accommodating groove 510, and the rack 502 will not be exposed to cause obstacles.

The two adjacent steps of the bed ladder device 5 are slidingly connected. Among the two adjacent steps, the side of the lower step is provided with a slide groove extending in the horizontal direction, and the upper step is embedded in the slide. The sliding connection is realized in the groove, and there are protrusions at both ends of the chute. When the lower step is doing reciprocating linear motion, the upper step will be pushed to move by being pulled by the protrusions at both ends of the chute. As shown in FIG. 6 and FIG. 7 , except that no chute is provided on the side of the top step 508 , chute is provided on the side of the steps at other positions.

Preferably, a pull-out storage box 511 is provided inside the steps of the bed ladder device 5, and the storage box 511 is used to store articles, increase storage space, and make full use of resources. As shown in Figures 6 and 7, the middle step 501 and the top step 508 are hollow rectangular box structures, and the inside of the middle step 501 and the top step 508 has a cavity for accommodating a storage box 511. The box 511 can be drawn in the horizontal direction.

As shown in FIG. 1 and FIG. 2 , preferably, the first bed body 1 further includes a storage rack 104 fixedly connected to the first bed board 101 , and the storage rack 104 has a plurality of storage compartments 105 for storing items. The storage rack 104 is vertically arranged, and one end of the first bed board 101 is fixedly connected with the bed leg 103, and the other end is fixedly connected with the storage rack 104. between. The inside of the storage rack 104 also has an accommodating chamber for the bed ladder device 5, and the second motor 505 of the driving mechanism is fixedly arranged on the storage rack 104. When the bed ladder device 5 is expanded and contracted, the moving direction of each step It is perpendicular to the length direction of the first bed board 101 . The top of the storage rack 104 is also provided with a supporting plate for holding the rack 502 so that the rack 502 can only move along the horizontal direction. When the bed ladder device 5 is in the retracted state, all the steps of the bed ladder device 5 are stored in the accommodating cavity of the rack 104, and a part of the rack 502 is stored in the accommodating groove 510 in the bottom step 507, The other part is accommodated in the accommodating cavity, and the rack 502 will not be exposed to cause obstacles.

As shown in Figures 6 and 7, in order to keep the rack 502 moving stably, two first motors and a second motor are respectively used to place on both sides of the rack 502, and the bottom of the bottom step 507 is provided with a locking function. The rollers are in contact with the ground and are used to guide the bed ladder to unfold and retract, and play a role in supporting and locking the bed ladder. The length and number of steps can be set according to the actual application. The length of the rack is determined according to the total stretching stroke of the step. As an optimization, the total stretching stroke L of the step is greater than the length of a single step and each step is set to be equal in length. The total stretching of the step The stroke L is the sum of the relative displacements of every two adjacent steps, which is also the total displacement of the bottom steps.

If the first motor adopts an ordinary motor and the second motor adopts an electromagnetic brake motor, the motor shaft of the first motor can still rotate when the motor is not powered, and the motor shaft is in a locked state and cannot rotate when the second motor is not powered. The specific process of expanding and contracting the bed ladder device 5 is as follows: when the steps need to be expanded, the second motor needs to be started first to send the rack out, the second motor stops working and the rack remains stationary, and then the first motor is started to expand The bottom step drives the upper step to unfold; when the steps need to be retracted, first start the first motor to retract the bottom step and drive the upper step to retract, the first motor stops working, and then start the second motor The rack 502 is accommodated in the accommodating groove and the accommodating cavity to avoid interference with the external space of the bed body. The installation and arrangement of the first motor and the second motor make the total length of the rack basically equal to the total stroke of the steps, without wasting rack material, and the rack can be stored and hidden, reducing the requirement for the reserved space for the rack to move .

If the first motor and the second motor all adopt electromagnetic braking motors, the motor shafts of the first motor and the second motor are in a locked state when they are not energized and cannot rotate, and the motor shafts can only rotate after energization. The specific process of expanding and contracting the bed ladder device 5 is as follows: when the steps need to be expanded, first start the first motor to move the first gear to the end of the rack 502 along the direction of step expansion and keep the rack and pinion engaged. One motor stops working, and then starts the second motor, the second gear drives the rack 502, and the rack 502 drives the bottom step 507 through the first gear 504 and the first motor 503 to continue moving forward along the horizontal direction, and the bottom step 507 And then drive other steps above to move; when the steps need to be put away, first start the second motor, the first motor does not work, the second motor drives the rack to move through the second gear, and the rack 502 passes through the first gear 504 And the first motor 503 drives the bottom step 507 to pack up, and drives the upper step to pack up. When the rack was recovered to its initial position before the step was launched, the second motor stopped working, and the first motor started to make The bottom steps continue to move along the retracting direction until all the steps are retracted. At this time, the rack 502 is accommodated in the accommodating groove and the accommodating cavity. In this embodiment, the front end of the rack is always hidden inside the bed ladder. exposed to the outside world.

As shown in FIGS. 1 and 2 , preferably, one end of the second bed board 201 is fixedly connected to the lower bed leg 103 , and the other end is fixedly connected to the lower shelf 104 , and is supported by the bed leg 103 and the shelf 104 . The storage compartment 105 is a hollow body formed on the side of the storage rack 104 and extending toward the inside of the storage rack 104 , and the overturned bed board 102 is located below the storage compartment 105 .

As shown in Figures 1 and 2, preferably, two first beds 1 are provided, the two first beds 1 are arranged side by side, and the two storage racks 104 are adjacent and connected to form a one-piece hospital bed structure, the two first bed boards 101 are respectively located on one side of the two storage racks 104 . Two storage racks 104 are arranged symmetrically, and the accommodation cavity of storage rack 104 forms an opening on the side of storage rack 104 away from the first bed board 101, and the accommodation chambers of two storage racks 104 are connected at the opening, and the bed ladder device 5 is arranged in the accommodating cavities of the two racks 104.

As shown in Figure 1 and Figure 2, as preferably, when the first bed body 1 is provided with two, the second bed body 2 is also provided with two, two second bed bodies 2 are arranged side by side, and each second bed body 2 respectively It is arranged on a first bed body 1 to form a four-piece hospital bed structure.

As shown in FIG. 1 and FIG. 2 , preferably, the first bed body 1 further includes a lifting device 6 arranged on the first bed board 101 and used for providing convenience for patients to get on and off the first bed board 101 . As shown in FIG. 8 , the lifting device 6 includes a lifting rod 603 vertically arranged on the first bed board 101 and a lifting rod 601 screwed to the lifting rod 603 . The lifting rod 603 is rotatably arranged on the first bed board 101, the axis of the lifting rod 603 is perpendicular to the bed surface of the first bed board 101, and the first bed board 101 is provided with a driving force for the lifting rod 603 to rotate The motor is connected to the lifting rod 603 through a gear transmission mechanism, and the power is transmitted to the lifting rod 603 to make the lifting rod 603 rotate. The elevating rod 603 and the elevating bed board 601 form a screw drive, and when the elevating rod 603 rotates, it can drive the elevating bed board 601 to do reciprocating linear motion in the vertical direction. When the liftable bed board 601 moves downward until the top surface is below the bed surface of the first bed board 101 , the patient can step on the liftable bed board 601 to go up and down the first bed board 101 .

As shown in Figures 1 and 2, preferably, the lifting device 6 further includes a guide rod 602 arranged parallel to the lifting rod 603 and used to provide guidance for the lifting bed board 601. The guide rod 602 is vertically arranged on the first On the bed board 101, guide holes for the guide rods 602 to pass through are provided on the lifting bed board 601 correspondingly. The lifting rod 603 and the guide rod 602 of the lifting device 6 are all provided with two parallel ones, the two lifting rods 603 and the two guide rods 602 are distributed in a rectangle, and the two lifting rods 603 are located on a diagonal of the rectangle, The two guide rods 602 are on the other diagonal of the rectangle.

As shown in FIG. 1 , the double-deck hospital bed of the present invention also includes a suspension device arranged above the first bed board 101 and used for suspending infusion bottles. As shown in FIG. 9, preferably, the suspension device includes a rail 701 above the first bed board 101 and a hook 702 slidingly connected to the rail 701. The hook 702 is an L-shaped structure, and the hook 702 is used to hook an infusion bottle. A chute is also provided in the track 701, and the upper end of the hook 702 is embedded in the chute and can move along the chute to realize sliding connection with the track 701. By moving the hook 702, the position of the infusion bottle can be adjusted.

As preferably, as shown in Fig. 1 and Fig. 9, the track 701 of the suspension device is a U-shaped structure arranged on the bottom surface of the second bed board 201, and its length direction is the same as that of the first bed board 101 and the second bed board 201. parallel. The chute inside the track 701 is also a U-shaped groove, so that the moving track of the hook 702 can be U-shaped, and the end of the track 701 is provided with an opening for the hook 702 to go in and out, and the hook 702 can be taken out and put into the opening. , to adjust the number of hooks 702 . When there are many hooks 702, the suspension device can be used to hang curtains or mosquito nets, etc., to prevent light and prevent mosquitoes, and provide a comfortable rest environment for patients.

As shown in FIG. 10 , preferably, the double-decker hospital bed of the present invention also includes another suspension device arranged on the second bed body 2 and used for hanging infusion bottles or other items such as curtains or mosquito nets. The structure of the suspension device is similar to that of the suspension device arranged above the first bed board 101. It includes a track above the second bed board 201 and a hook that is slidingly connected to the track. The hook is an L-shaped structure, and the hook is used to hook the infusion bottle. or other items. There is also a chute in the track, the upper end of the hook is embedded in the chute and can move along the chute to realize the sliding connection with the track, and the position of the infusion bottle can be adjusted by moving the hook. The track of the suspension device is supported by the support rods 8 vertically arranged on the second bed body 2. The support rods 8 are provided with multiple parallel ones. The lower ends of the support rods 8 are connected with the second bed body 2, and the upper ends are connected with the rails. The rails are placed horizontally above the second bed board 201 .

The hospital bed of the utility model has a bunk bed structure, which can make full use of the upper space of the ward and reduce the occupancy of the ground space of the ward. The upper berth can be used as a resting bed for the accompanying staff at ordinary times, and it can also be used as a bed for patients with mild conditions without mobility impairments when the beds are relatively tight. The lower berth is often used for patients. There are steps between the upper and lower bunks, which is convenient for the upper and lower bunks to go up and down. The steps adopt a telescopic structure, which can be retracted when not in use, and there are drawers inside each step, which can make full use of the existing space while reducing the space occupied by the ward. The lower berth is equipped with a rocker mechanism to facilitate patients to lie down, lie on their backs, and sit up, and the side of the lower berth is equipped with a lifting bed board mechanism, which is convenient for patients with mobility impairments and elderly patients to get on and off the bed. For the convenience of patients in the lower berth to have meals, read books, read newspapers, use notebook computers, etc., a lifting and folding table 4 is provided on the bottom surface of the upper berth bed, which can be unfolded and laid flat when in use, and the inclination angle and height of the desktop can be adjusted according to needs, which is convenient for use. It can be used in different sitting positions; it can be folded and put away when not in use. After being put away, the lower ends of the cantilever arms on both sides of the hanging table can be tied with ropes for placing towels, clothes, etc. In order to make full use of resources and save space, there is a smooth track on the bottom of the upper bed frame, with a built-in slider hook, which can be used to hang infusion bottles, instead of the existing ceiling track hanging rod type infusion hanger; it can also be hung with curtains, Mosquito nets, shading and anti-mosquito, provide patients with a comfortable rest environment; and a bookshelf-type partition is provided at the end of the bed, and a number of placements are distributed on the partition, which can be used as a bookshelf to place books and patients' belongings. There are universal wheels with rubber block locking devices at the bottom of the outriggers of the hospital bed to facilitate the movement of the bed body. The hospital bed can be set as two independent beds with upper and lower bunks, or it can be set as four conjoined beds with upper and lower beds. The hospital bed not only has the function of the existing hospital bed, but also can make full use of the space of the ward, save resources, reduce the floor space occupation and the patient's sense of depression, provide the patient with more abundant living facilities, expand the patient's living space, and facilitate the rehabilitation of the patient. At the same time, taking into account the night rest of the accompanying staff, reducing nursing fatigue and increasing the pleasure of the doctor-patient relationship.

The utility model has been exemplarily described above in conjunction with the accompanying drawings. Apparently, the specific implementation of the present invention is not limited by the above methods. As long as the various insubstantial improvements made by adopting the method concept and technical solution of the present utility model; within the scope of protection.

Claims (5)

1. A bed ladder device suitable for double-decker hospital beds and having a storage function, characterized in that it includes a plurality of steps that are slidably connected in sequence and a driving mechanism that provides a driving force for expanding and contracting the steps , there is a pull-out storage box inside the steps; among the multiple steps, the bottom step is the bottom step connected to the drive mechanism, the top step is the top step, and the rest of the steps are The steps are the middle steps between the bottom step and the top step, and at least one middle step is provided; Among the two adjacent steps, a sliding groove extending along the horizontal direction is provided on the side of the lower step, and the upper step is embedded in the sliding groove and has protrusions at both ends of the sliding groove. 2. The bed ladder device suitable for double-decker beds and having a storage function according to claim 1, characterized in that: the driving mechanism includes a first motor arranged on the lowermost step, The first gear on a motor and the rack placed horizontally below the steps and meshed with the first gear, driven by the first motor, the first gear rolls on the rack and drives multiple steps to expand or contract action. 3. The bed ladder device suitable for bunk beds and having a storage function according to claim 2, characterized in that: the drive mechanism further comprises a second motor and a second gear arranged on the second motor, the first The second gear meshes with the rack. Driven by the second motor, the second gear drives the rack to move, and the rack drives the multiple steps through the first gear and the first motor to expand or contract. 4. The bed ladder device suitable for bunk beds and having a storage function according to claim 2 or 3, characterized in that: it also includes a limit rod vertically arranged on the uppermost step, said The top surface of the rack is provided with a limit groove extending along its length direction and allowing the limit rod to be embedded. 5. The bed ladder device suitable for double-decker hospital beds and having a storage function according to claim 4, characterized in that: four steps are arranged vertically.