Linkage lifting split guardrail structure and bed

Abstract

The invention discloses a linkage lifting split guardrail structure which comprises a fixed seat and a fence, the fence is mounted on the fixed seat through a lifting mechanism, the fence comprises a fence rod and a fence plate which are split, a telescopic pipe is mounted and connected on the fence rod, a guide hole is formed in the fence plate, and the telescopic pipe is movably inserted in the guide hole; the lifting mechanism comprises a bent arm and a connecting seat, one end of the bent arm is hinged to the upper portion of the fixing seat, the other end of the bent arm is hinged to a push rod, the push rod is hinged to the lower portion of the telescopic pipe, the bent arm is further hinged to the fence plate, one end of the connecting seat is hinged to the lower portion of the fixing seat, and the other end of the connecting seat is hinged to the fence plate. And the limiting clamping hook is matched with a limiting assembly on the fixed seat. According to the device, the total height of the fence can be reduced when the fence descends and can be increased when the fence ascends, and the safety standard requirement of the height of a bed surface is met.

Description

Technical Field

[0001] The present invention relates to the technical field of improved design of local structures of beds, and in particular to a split guardrail structure capable of linked lifting and lowering and a bed. Background Art

[0002] Nursing beds are divided into electric nursing beds and manual nursing beds. They are used by patients with limited mobility during hospitalization or home care. Their main purpose is to facilitate nursing staff to provide care and facilitate patient recovery. To prevent patients from falling out of bed, they are equipped with guardrails, either integrated or split.

[0003] Most high-end beds on the market are equipped with split guardrails to facilitate the safety protection of patients during the nursing process. However, the lifting mechanism of the traditional split guardrail has limitations on the design of the bed height (the bed height is above 380mm). Together with the mattress, the bed height is greater than 500mm. For some patients with limited mobility, there are some risks and inconveniences in getting on and off the bed during the nursing and transportation process. In order to solve the problem of reducing the bed height to less than 320mm and not affecting the lifting of the bed after the guardrail is lowered, and meeting the safety standards, the applicant proposed an improved design, in which the total height of the guardrail will be reduced when the guardrail is lowered, and the total height of the guardrail will be enlarged when it is raised.

[0004] In the prior art, the patent with announcement number CN219813656U discloses a fully covered lifting guardrail, including an integrated guardrail structure movably connected to the fixed beams on both sides of the bed, the two sides of the guardrail structure are respectively close to the head and foot of the bed, and are movably connected to the above-mentioned fixed beams through a lifting mechanism at the bottom; the lifting mechanism includes a first support shaft seat, a second support shaft seat, a first connecting bent plate, and a second connecting bent plate, wherein the first support shaft seat and the second support shaft seat are fixed at intervals on the outside of the fixed beam, and form a parallelogram hinge structure with the first connecting bent plate and the second connecting bent plate, and have a large telescopic and flipping stroke. The fully covered lifting guardrail of the utility model adopts an integrated guardrail structure, which can form all-round protection for the side of the bed. At the same time, based on the lifting mechanism, the guardrail lifting operation is simple, the structure is stable and not easy to be damaged, and it can effectively save storage space.

[0005] The patent with announcement number CN218338640U discloses a bed guardrail lifting mechanism, including an inner connecting plate, an outer connecting plate, a fixed seat and an upper connecting seat, the two ends of the inner connecting plate and the outer connecting plate are respectively axially connected to the fixed seat and the upper connecting seat to form a parallelogram lifting structure, the inner connecting plate and the outer connecting plate are connected to the side plates on both sides to form a closed chamber, the outer connecting plate in the chamber is axially connected to the lock, a spring is provided between one end of the lock and the outer connecting plate, and the other end is hook-shaped and locked by the connecting shaft between the inner connecting plate and the fixed seat, the outer connecting plate is penetrated with a handle, and the handle is penetrated to one end of the chamber and abuts against the lock. The utility model has the advantages of simple and compact structure, large supporting weight and lifting range, reduced manufacturing cost, main components are made of aluminum alloy, longer service life, and convenient daily cleaning and maintenance.

[0006] In the above technical solution, a connecting rod mechanism is used to allow the guardrail to be raised as a whole. Once the connecting rod mechanism is determined, the lifting height of the guardrail is determined accordingly, and the overall height of the guardrail is also limited. There may be a situation where the guardrail is not high enough and cannot meet actual needs.

[0007] In order to solve one of the above problems, the present application provides a split guardrail structure and a bed with linked lifting. Summary of the invention

[0008] The purpose of the present invention is to solve the problems existing in the prior art, and to propose a split guardrail structure and a bed with linked lifting, which can reduce the total height of the fence when the fence is lowered and increase the total height of the fence when it is raised, thereby meeting the safety standard requirements for the bed surface height.

[0009] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a split guardrail structure with linked lifting, including a fixed seat and a fence, the fence is installed on the fixed seat through a lifting mechanism, the fence includes a split fence rod and a fence plate, a telescopic tube is installed and connected on the fence rod, a guide hole is provided on the fence plate, and the telescopic tube is movably inserted in the guide hole; the lifting mechanism includes a bent arm and a connecting seat, one end of the bent arm is hinged to the upper part of the fixed seat, the other end of the bent arm is hinged to a push rod, the push rod is hinged to the lower part of the telescopic tube, the bent arm is also hinged to the fence plate, one end of the connecting seat is hinged to the lower part of the fixed seat, and the other end of the connecting seat is hinged to the fence plate, and a limit hook is also movably installed on the connecting seat, and the limit hook cooperates with the limit assembly on the fixed seat.

[0010] Furthermore, a slide groove tube is fixed in the guide hole as described above, and the telescopic tube is movably inserted in the slide groove tube, and the telescopic tube can move up and down along the slide groove tube.

[0011] Furthermore, the lower part of the slide tube as described above is hingedly installed with the connecting seat, a second rod is horizontally inserted on the slide tube, a second pivot hole is provided on the bent arm, and the second rod is movably inserted in the second pivot hole. The slide tube, the bent arm, the connecting seat and the fixed seat can form a four-bar linkage mechanism, so that the slide tube can be raised and lowered driven by the rotation of the bent arm and the connecting seat.

[0012] Furthermore, as described above, a first pin and a second pin are respectively provided at both ends of the push rod, a sliding hole is provided on the slide groove tube, the first pin is movably inserted into the sliding hole along the radial direction of the slide groove tube and is hingedly connected to the telescopic tube, and the second pin is hingedly installed with the bent arm.

[0013] Furthermore, the push rod as described above is in an arc shape.

[0014] Furthermore, the connecting seat as described above includes an upper cover plate and a lower cover plate which are connected to each other, and the lower cover plate is hingedly installed with a limit hook, one end of the limit hook is located at the opening of the upper cover plate, one end of the limit hook is hinged to one end of the pull rod, and the other end of the pull rod is hinged to the buckle cover, which is rotatably connected to the lower cover plate.

[0015] Furthermore, the limiting assembly as described above includes a mounting seat and a limiting rod fixed on the mounting seat, a third rod is installed on the lower cover plate, one end of the third rod is fixed on the mounting seat, and the third rod is rotatably connected to the fixing seat, and the limiting hook is buckled and connected to the limiting rod.

[0016] Furthermore, as described above, a first rod is disposed in the lower cover plate, and a buckle cover located outside the connecting seat is rotatably connected to the first rod. The buckle cover flips to drive the pull rod to separate the limiting hook from the limiting rod.

[0017] Furthermore, the bending arm, the push rod and the telescopic tube as described above are symmetrically provided with two each, and a guide sleeve matching with the telescopic tube is also provided in the guide hole.

[0018] A bed comprises the split guardrail structure as described above.

[0019] Compared with the prior art, the beneficial effects of the present invention are: the device can reduce the total height of the fence rods when the fence plate is lowered, and increase the total height of the fence rods when it is raised, thereby meeting the safety standard requirements for the bed height, and can effectively reduce the bed height of the medical care bed. When the bed is in the lowest position, it does not affect the opening and lowering of the fence. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A perspective view of the present invention;

[0021] Figure 2 Schematic diagram of the explosion of the present invention Figure 1 ;

[0022] Figure 3Schematic diagram of the explosion of the present invention Figure 2 ;

[0023] Figure 4 Schematic diagram of the explosion of the present invention Figure 3 ;

[0024] Figure 5 Schematic diagram of the explosion of the present invention Figure 4 ;

[0025] Figure 6 It is a working principle diagram of the present invention.

[0026] In the figure: 1. fence rod; 2. fence plate; 21. guide hole; 3. lifting mechanism; 301. first rod; 302. buckle cover; 31. bent arm; 311. second pin hole; 312. second pivot hole; 313. third pin shaft; 32. push rod; 321. first pin shaft; 322. second pin shaft; 33. slide tube; 331. guide sleeve; 332. sliding hole; 333. fourth pin hole; 34. second Rod; 351. First pin hole; 35. Telescopic tube; 36. Connecting seat; 361. Upper cover; 362. Lower cover; 3621. Fourth pin shaft; 3622. Mounting hole; 37. Pull rod; 38. Limit hook; 39. Limit assembly; 391. Limit rod; 392. Mounting seat; 393. Third rod; 394. Limit pin; 4. Fixed seat; 41. Third pin hole; 42. Third pivot hole. DETAILED DESCRIPTION

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected", "set", etc. should be understood in a broad sense. For example, when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be an intermediate element. When an element is considered to be "installed on" another element, it can be directly installed on the other element or there can be an intermediate element. When an element is considered to be "connected" to another element, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be internal communication between the two elements.

[0029] For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Embodiment 1

[0032] Reference Figure 1-5 As shown, a split guardrail structure with linked lifting of the present invention comprises a fixing seat 4 and a fence, the fence is installed on the fixing seat 4 through a lifting mechanism 3 to adjust its own height, the fence comprises a split fence rod 1 and a fence plate 2, the fence rod 1 is connected with a telescopic tube 35, the fence plate 2 is provided with a guide hole 21, the telescopic tube 35 is movably inserted in the guide hole 21, the fence plate 2 is a plate member and has two through guide holes 21, the fence rod 1 is a rod member and is fixed with two telescopic Tube 35; the lifting mechanism 3 includes a bent arm 31 and a connecting seat 36, one end of the bent arm 31 is hinged to the upper part of the fixed seat 4, the other end of the bent arm 31 is hinged with a push rod 32, the push rod 32 is hinged to the lower part of the telescopic tube 35, the bent arm 31 is also hinged to the fence plate 2, one end of the connecting seat 36 is hinged to the lower part of the fixed seat 4, the other end of the connecting seat 36 is hinged to the fence plate 2, and a limit hook 38 is movably installed on the connecting seat 36, and the limit hook 38 cooperates with the limit component 39 on the fixed seat 4.

[0033] The fence is of split design, and combined with the lifting mechanism 3, the fence plate 2 is raised and lowered while the fence rod 1 is also raised and lowered, thereby increasing the overall height variation range of the fence, that is, the total height of the fence will be reduced when the fence is lowered, and the total height of the fence will be increased when the fence is raised, thereby meeting the safety standards. The bed surface height is reduced to within 320mm, and the lowering of the fence does not affect the lifting function of the bed.

[0034] Embodiment 2

[0035] Reference Figure 1-5 As shown, based on the technical solution of the first embodiment, a split guardrail structure with linked lifting is provided, such as Figure 2-5 As shown, a chute tube 33 is fixed in the guide hole 21, and a telescopic tube 35 is movably inserted in the chute tube 33. Specifically, a guide sleeve 331 is also installed in the chute tube 33, and the telescopic tube 35 is movably inserted in the guide sleeve 331. In addition, the lower part of the chute tube 33 is hingedly installed with the connecting seat 36. Specifically, a fourth pin hole 333 is opened at the lower part of the chute tube 33, and a fourth pin shaft 3621 matching with the fourth pin hole 333 is provided on the upper side of the connecting seat 36 for hinged installation. A second rod 34 is transversely inserted on the chute tube 33, and a second pivot hole 312 matching with the second rod 34 is provided on the bent arm 31, so as to realize hinged connection through hole-shaft matching. The chute tube 33, the bent arm 31, the connecting seat 36 and the fixed seat 4 can form a four-bar linkage mechanism, so that the chute tube 33 can move up and down.

[0036] Furthermore, the first pin 321 and the second pin 322 are respectively provided at both ends of the push rod 32, and the slide slot tube 33 is provided with a slide hole 332. The first pin 321 is movably inserted into the slide hole 332 along the radial direction of the slide slot tube 33 and is hingedly connected to the telescopic tube 35, and the second pin 322 is hingedly installed with the bent arm 31. Specifically, the telescopic tube 35 is processed with a first pin hole 351, and the first pin 321 is movably inserted in the first pin hole 351. The bent arm 31 is processed with a second pin hole 311, and the second pin 322 is movably inserted in the second pin hole 311. The slide hole 332 is a waist hole, and the push rod 32 is in an arc shape. When the bent arm 31 rotates and drives the push rod 32 to rotate, the first pin 321 on the push rod 32 moves up and down along the slide hole 332, that is, the height changes with the axial lifting and lowering movement along the slide slot tube 33. The bent arm 31 , the push rod 32 , the chute tube 33 and the telescopic tube 35 constitute a crank slider mechanism. The push rod 32 rotates to drive the telescopic tube 35 to move linearly along the chute tube 33 .

[0037] Embodiment 3

[0038] Reference Figure 1-5 As shown, based on the technical solution of the above embodiment, a split guardrail structure with linked lifting is provided, combined with Figure 4 and Figure 5It can be seen that the limiting assembly 39 includes a mounting seat 392 and a limiting rod 391 fixed on the mounting seat 392, one end of the third rod 393 is fixed on the mounting seat 392, and the third rod 393 is rotatably connected to the fixed seat 4, and the limiting hook 38 can be flipped and buckled to connect the limiting rod 391, which plays a role in limiting the lifting mechanism. Specifically, the upper parts of both sides of the fixed seat 4 are respectively processed with third pin holes 41, and the end of the bent arm 31 is movably inserted into the third pin hole 41 through the third pin shaft 313, so as to realize the hinged connection through the hole-shaft cooperation, and the lower part of the fixed seat 4 is processed with a third pivot hole 42, and the lower part of the connecting seat 36 is inserted with the third rod 393, and the third rod 393 cooperates with the third pivot hole 42, so as to realize the rotational connection between the third rod 393 and the fixed seat 4 through the hole-shaft cooperation.

[0039] Furthermore, the connection seat 36 includes an upper cover plate 361 and a lower cover plate 362 which are connected to each other, and are generally connected by screws. The lower cover plate 362 is hingedly installed with a limit hook 38, one end of which is located at the opening of the upper cover plate 361, one end of which is hinged to one end of a pull rod 37, and the other end of which is hinged to a buckle cover 302, which is rotatably connected to the lower cover plate 362. A first rod 301 is arranged inside the lower cover plate 362, and the buckle cover 302 located outside the connection seat 36 is rotatably connected to the first rod 301. The buckle cover 302 flips over to drive the pull rod 37 so that the limit hook 38 can be separated from the limit rod 391. Specifically, the lower portion of the lower cover 362 is provided with a mounting hole 3622 and a limiting hole, the third rod 393 is fixed with a limiting pin 394, the third rod 393 is inserted into the mounting hole 3622, and the limiting pin 394 is inserted into the limiting hole to fix the third insertion rod 393 to stop rotation; the upper portions of both sides of the lower cover 362 are respectively provided with fourth pin shafts 3621, and the two sides of the lower cover 362 are respectively provided with first pivot holes for assembling the two ends of the first rod 301, and the buckle cover 302 is also provided with two first holes to accommodate The middle part of the first rod 301 allows the buckle cover 302 to be flipped over when it is outside the connecting seat 36. In addition, the buckle cover 302 is also hinged to the pull rod 37. The limit hook 38 itself is hinged to the lower cover plate 362 and is located at the opening of the upper cover plate 361 to clamp the limit rod 391 to limit the position. A torsion spring can also be added to assist the reset action of the limit hook 38. Therefore, the flipping of the cover can drive the pull rod 37, and then the limit hook 38 can be separated from the limit rod 391. The lifting mechanism 3 as a whole can lower its height under its own gravity and downward pressure.

[0040] Embodiment 4

[0041] Reference Figure 1-6 As shown, a bed includes the split guardrail structure described on the basis of the technical solution of the above embodiment, specifically, it is fixed to the side of the main bed frame through a fixing seat 4 for use.

[0042] Combination Figure 6 As shown, the linkage lifting principle of the split guardrail structure is that when the fence needs to be lowered, the buckle cover 302 is flipped outward, driving the pull rod 37 to release the limit hook 38 upward and disengage the contact with the limit rod 391. The fence descends with its own gravity, driving the connecting seat 36 and the bent arm 31 to rotate clockwise about the rotation axis A (third rod 393) and the rotation axis B (third pin 313) respectively, driving the slide tube 33 to move downward (i.e., the fence plate 2 descends) and driving the push rod 32 to rotate counterclockwise about the rotation axis E (second pin 322), thereby driving the telescopic tube 35 to retract downward (i.e., the fence rod 1 descends) to complete the fence narrowing action. It descends to the lower limit position of the fixed seat 4 to complete the overall lowering action of the fence; conversely, when the fence needs to be raised, the fence is manually lifted, and the fence drives the connecting seat 36 and the bent arm 31 to rotate counterclockwise about the rotation axis A (the third rod 393) and the rotation axis B (the third pin 313) respectively, driving the slide tube 33 to move upward (i.e., the fence plate 2 is raised) and driving the push rod 32 to rotate clockwise about the rotation axis E (the second pin 322), thereby driving the telescopic tube 35 to rise upward (i.e., the fence rod 1 is raised) to complete the fence raising, and the limit hook 38 is reset to hook the limit rod 391, and the fence rises to the upper limit position of the fixed seat 4 to complete the fence rising action.

[0043] The innovative improvement of the device of the present invention is that a four-bar linkage and a crank slider mechanism are organically combined to obtain a linked lifting mechanism. The assembly and matching relationship of the various components involved, the hole-shaft matching accuracy and the component materials are existing technologies or materials. The relevant technical personnel can directly purchase or customize them from the market according to the required product models and specifications.

[0044] The above is only a preferred specific embodiment of the present invention, and the common sense such as the known specific structure and characteristics in the scheme is not described too much here. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned embodiment, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiment should be regarded as exemplary and non-restrictive. Any technician familiar with the technical field within the technical scope disclosed by the present invention, according to the technical scheme of the present invention and its inventive concept, shall be equivalently replaced or changed, which shall be covered within the protection scope of the present invention.

Claims

1. A split guardrail structure with linked lifting, comprising a fixed seat (4) and a fence, wherein the fence is mounted on the fixed seat (4) through a lifting mechanism (3), characterized in that: The fence comprises a split fence rod (1) and a fence plate (2), a telescopic tube (35) is installed and connected on the fence rod (1), a guide hole (21) is provided on the fence plate (2), and the telescopic tube (35) is movably inserted in the guide hole (21); the lifting mechanism (3) comprises a bent arm (31) and a connecting seat (36), one end of the bent arm (31) is hinged to the upper part of the fixed seat (4), the other end of the bent arm (31) is hinged to a push rod (32), the push rod (32) is hinged to the lower part of the telescopic tube (35), the bent arm (31) is also hinged to the fence plate (2), one end of the connecting seat (36) is hinged to the lower part of the fixed seat (4), and the other end of the connecting seat (36) is hinged to the fence plate (2), and a limit hook (38) is also movably installed on the connecting seat (36), and the limit hook (38) cooperates with a limit component (39) on the fixed seat (4).

2. The linked lifting split guardrail structure according to claim 1 is characterized in that: A slide groove tube (33) is fixed in the guide hole (21), and the telescopic tube (35) is movably inserted in the slide groove tube (33).

3. The linked lifting split guardrail structure according to claim 2 is characterized in that: The lower part of the chute tube (33) is hingedly mounted with the connecting seat (36), a second rod (34) is transversely inserted on the chute tube (33), a second pivot hole (312) is provided on the bent arm (31), and the second rod (34) is movably inserted in the second pivot hole (312).

4. The linked lifting split guardrail structure according to claim 2 is characterized in that: The push rod (32) is provided with a first pin shaft (321) and a second pin shaft (322) at both ends, and a sliding hole (332) is provided on the slide groove tube (33). The first pin shaft (321) is movably inserted into the sliding hole (332) along the radial direction of the slide groove tube (33) and is hingedly connected to the telescopic tube (35). The second pin shaft (322) is hingedly installed with the bent arm (31).

5. The linked lifting split guardrail structure according to claim 4 is characterized in that: The push rod (32) is in an arc shape.

6. The linked lifting split guardrail structure according to claim 1 is characterized in that: The connecting seat (36) includes an upper cover plate (361) and a lower cover plate (362) which are connected to each other. The lower cover plate (362) is hingedly installed with a limit hook (38). One end of the limit hook (38) is located at the opening of the upper cover plate (361). One end of the limit hook (38) is hinged to one end of the pull rod (37). The other end of the pull rod (37) is hinged to the buckle cover (302). The buckle cover (302) is rotatably connected to the lower cover plate (362).

7. The linked lifting split guardrail structure according to claim 6 is characterized in that: The limiting assembly (39) comprises a mounting seat (392) and a limiting rod (391) fixed on the mounting seat (392); a third rod (393) is installed on the lower cover plate (362); one end of the third rod (393) is fixed on the mounting seat (392); the third rod (393) is rotatably connected to the fixing seat (4); and the limiting hook (38) is buckled and connected to the limiting rod (391).

8. The linked lifting split guardrail structure according to claim 7 is characterized in that: A first rod (301) is arranged inside the lower cover plate (362), and a buckle cover (302) located outside the connecting seat (36) is rotatably connected to the first rod (301). The buckle cover (302) flips to drive the pull rod (37) to make the limiting hook (38) separate from the limiting rod (391).

9. The linked lifting split guardrail structure according to any one of claims 1 to 8, characterized in that: The bent arm (31), the push rod (32) and the telescopic tube (35) are symmetrically provided with two each, and a guide sleeve (331) matching with the telescopic tube (35) is also provided in the guide hole (21).

10. A bed, characterized in that: Including the split guardrail structure described in claim 9.

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