Height-adjustable bed handrail guard

Abstract

The present invention discloses a height-adjustable bed handrail guard, comprising a handrail part, two telescopic railings, the lower ends of the two telescopic railings are to be fixed parallel to the side of the bed, the two telescopic railings are vertically provided with a first telescopic pipe, a second telescopic pipe, the first telescopic pipe is slipped into the second telescopic pipe, the first telescopic pipe is provided with a reversing mechanism, tie rod, snap-in mechanism, the reversing mechanism, tie rod, and snap-in mechanism are connected in turn, and the handrail part is fixed across the upper end of the two first telescopic pipes; buckle handle, shaft rod extends laterally to the first telescopic pipe and connected with the reversing mechanism, the buckle hand is fixed in the middle of the shaft rod, the pull buckle hand drives the shaft rod to rotate to make the tie rod go up or down, and the tie rod drives the snap-in mechanism to snap or relax the first telescopic pipe at different heights of the second telescopic pipe to adjust the height of the handrail part and the telescopic railing. The present invention makes the height adjustment of the handrail guard more convenient.

Description

Technical field

[0001] The present invention relates to the technical field of bed handrail guards, and in particular relates to a height-adjustable bed handrail guard.Background technology

[0002] A handrail is a common bed structure, especially suitable for infants, patients and other people with mobility difficulties.

[0003] The existing crib, the handrail guard on the hospital bed is mostly highly fixed, but in the process of caring for the infant and the patient, the caregiver often needs to step over the handrail guard to assist the infant or patient to adjust the posture, the handrail guard is inconvenient to the caregiver's nursing process; at the same time, the infant or patient itself in the process of using the handrail guard, its standing, sitting and lying often need to be assisted by handrail guards, and the height of the hand can be easily grasped in different postures, and the fixed height of the handrail guard is not conducive to the use of the baby or the patient itself.

[0004] At present, there is a height-adjustable handrail guard, but the current handrail guard is not convenient enough when adjusting the height, usually requires multiple places, multiple steps to operate, in order to achieve the lifting of the handrail guard, the operator uses inconvenience.Summary of the invention

[0005] Object of the present invention is to provide a height-adjustable bed handrail guard, overcoming the above defects, making the height adjustment of the handrail guards more convenient.

[0006] In order to achieve the above object, the solution of the present invention is a height-adjustable bed handrail guard, comprising a handrail part, two telescopic railings, the lower ends of the two telescopic railings are fixed parallel to the side of the bed, the two telescopic railings are provided vertically provided with a first telescopic pipe, a second telescopic pipe, the first telescopic pipe slides inserted in the second telescopic pipe, the first telescopic pipe is provided with a reversing mechanism, a tie rod, a snap-in mechanism, the reversing mechanism, a tie rod, and a snap-in mechanism are connected in turn, and the handrail part spans fixed at the upper end of the two first telescopic pipes.

[0007] The handrail part is provided with a shaft rod, a buckle handle, the shaft rod extends laterally to the first telescopic pipe and is connected with the reversing mechanism, the buckle hand is fixed in the middle of the shaft rod, the buckle hand drives the shaft rod to rotate to make the tie rod go up or down, the tie rod drives the snap-in mechanism to snap or relax the first telescopic pipe at different heights of the second telescopic pipe, to adjust the height of the handrail and the telescopic railing.

[0008] Further, the side wall of the second telescopic pipe is provided with a plurality of limit holes located at different heights, the snap-in mechanism and the tie rod are disposed in the first telescopic pipe, the snap-in mechanism comprises a first elastic member, The movable pin, the pipe wall of the first telescopic pipe is arranged transversely with a pin hole, the movable pin activity is installed in the pin hole, one end of the movable pin is movably extended out of the pin hole, the other end of the movable pin is connected to the first elastic member, the first elastic member pushes the movable pin into a limit hole, the movable pin forms a diagonal wedge fit with the tie rod, and the tie rod slides vertically to drive the movable pin to slide into the first telescopic pipe in the pin hole, and then causes the movable pin to exit the limit hole.

[0009] Further, the movable pin and the diagonal wedge of the tie rod mate comprises an oblique hook formed at the lower end of the tie rod, an oblique hole extending vertically on the movable pin, the oblique hook activity inserted into the oblique hole, the tie rod up, the oblique hook pushed against the hole wall of the oblique hole, so that the movable pin laterally adducted into the second telescopic pipe.

[0010] Further, the reversing mechanism comprises a connecting rod, the shaft rod forms a crank slider structure with the tie rod through the connecting rod, the shaft rod rotation drives the tie rod to slide vertically.

[0011] Further, the end of the shaft rod is provided with an eccentric block, the eccentric block is provided with a connecting end, the connecting end is eccentric to the axis of the shaft rod, one end of the connecting rod rotates connected to the connecting end, and the other end rotates connected to the tie rod.

[0012] Further, the telescopic railing further comprises a fixing pipe, the fixing pipe is fixed on the side of the bed, the side wall of the fixing pipe is provided with a positioning hole, the second telescopic pipe slides vertically into the fixing pipe, the second telescopic pipe sidewall is provided with a guide hole laterally, the second telescopic pipe is provided with a positioning pin, the second elastic member, the positioning pin activity is installed in the guide hole, one end of the positioning pin actively extends out of the guide hole, the other end of the positioning pin is connected to the second elastic member, the second elastic member pushes the positioning pin to slide outside the second telescopic pipe, and then causes the positioning pin to be inserted into the positioning hole.

[0013] The lower end of the first telescopic pipe forms an diagonal wedge with the positioning pin, the buckle hand is toggled to loosen the first telescopic pipe and the second telescopic pipe, and when the first telescopic pipe goes down to the positioning pin, push the positioning pin to slide into the second telescopic pipe, and then the positioning pin exits the positioning hole.

[0014] Further, a first diagonal wedge is formed on the positioning pin, and a second diagonal wedge is provided at the lower end of the first telescopic pipe, and the second diagonal wedge is pushed downward to the first diagonal wedge, so that the positioning pin is laterally adducted into the second telescopic pipe.

[0015] Further, a first linear bearing is provided between the first telescopic pipe and the second telescopic pipe, and a second linear bearing is provided between the second telescopic pipe and the fixing pipe.

[0016] Further, the handrail part further comprises a handrail body, the handrail body avoids the shaft rod, buckle handle, and the span is fixed at the upper end of the two first telescopic pipes.

[0017] Further, the shaft rod is provided with a return spring, the return spring is sleeved outside the shaft rod, and one end is fixed on the shaft rod, and the other end is fixed on the first telescopic pipe to drive the shaft rod circumferentially reset, so that the shaft rod drives the snap-in mechanism to reset, the first telescopic pipe and the second telescopic pipe snapped.

[0018] After adopting the above scheme, the beneficial effect of the present invention lies in: (1) The first telescopic pipe is provided with a reversing mechanism, tie rod, snap-in mechanism, the reversing mechanism, tie rod, snap-in mechanism connected in turn, the handrail part is provided with a shaft rod, buckle handle, the shaft rod extends laterally to the first telescopic pipe and is connected to the reversing mechanism, the buckle hand is fixed in the middle of the shaft rod, the buckle hand drives the shaft rod to rotate to make the tie rod go up or down, the tie rod drives the snap-in mechanism to snap or relax the first telescopic pipe at different heights of the second telescopic pipe, in order to adjust the height of the handrail and the telescopic railing, the buckle hand is fixed in the middle of the shaft rod to be more convenient for the user to operate, while the buckle hand increases the force arm when driving the shaft rod to rotate, and the shaft rod is more labor-saving when rotating the shaft rod, and the one-key operation is realized, and the height adjustment process is more convenient; (2) The transmission process adopts rotation to transmit torque to the shaft end of the shaft rod, and then uses the reversing mechanism to convert the torque into tension and then drive the snap-in mechanism action, so that when the span between the buckle hand and the telescopic railing is large, compared with the direct use of linear motion for transmission, the transmission mechanism caused by the large span is too large to reduce the transmission efficiency. Description of the drawings

[0019] FIG 1 is a schematic vie of the three-dimensional structure of the present invention; FIG 2 is a schematic view of the cross-sectional structure of the present invention; FIG 3 is a partial enlarged view at B in FIG. 2 of the present invention; FIG 4 is a schematic view of the cross-sectional structure in the other direction of the present invention; FIG 5 is a partial enlarged view at A in FIG. 4 of the present invention; FIG 6 is a schematic view of the connection structure of the first telescopic pipe, the second telescopic pipe and the fixing pipe of the present invention; FIG 7 is a schematic view of the shaft seat structure of the present invention.

[0020] References description: 1 - Handrail part, 2 - Telescopic railing, 3 - First telescopic pipe, 4 - Second telescopic pipe, 5 - Reversing mechanism, 6 - Tie rod, 7 - Snap-in mechanism, 8 - Shaft rod, 9 - Buckle hand, 10 - First elastic member, 11 -Movable pin, 12 - Limit holes, 13 - Oblique hook, 14 - Oblique hole, 15 - Connecting rod , 16 - Eccentric block, 17 - Connecting end , 18 - Fixing pipes, 19 - Second elastic member, 20 - Positioning pin, 21 - Positioning hole, 22 - First diagonal wedge, 23 - Second diagonal wedge, 24 - First linear bearing, 25 - Second linear bearing, 26 - Handrail body, 27 - Return spring, 28 - Shaft seat, 29 - Guide hole, 30 - Pin hole, 31 - First rotary pin, 32 - Second rotary pin, 33 - Buckle hands extension.Specific embodiment

[0021] The present invention is described in detail in conjunction with the accompanying drawings and specific embodiments.

[0022] The present invention provides a height-adjustable bed handrail guard, as shown in FIG. 1-7, the focus here combined with FIG. 1, comprising the handrail part 1, two telescopic railings 2, the lower ends of the two telescopic railings 2 are fixed parallel to the side of the bed, the telescopic railing 2 in the present embodiment is perpendicular to the bed, the two telescopic railings 2 are vertically provided with a first telescopic pipe 3, The second telescopic pipe 4, the first telescopic pipe 3 slides inserted into the second telescopic pipe 4, the handrail part 1 spans fixed at the upper end of the two first telescopic pipes 3, the telescopic railing 2 further comprises a fixing pipe 18, the fixing pipe 18 is fixed on the side of the bed, the second telescopic pipe 4 slides vertically into the fixing pipe 18, and then when the handrail part 1 is lifted or pressed down, the first telescopic pipe 3 extends or indents into the second telescopic pipe 4, and the second telescopic pipe 4 extends or indents into the fixing pipe 18 to achieve two-stage telescopic to adjust the height of the handrail part 1 and the telescopic railing 2 relative to the bed.

[0023] As shown on FIG. 2, FIG. 3, FIG. 4, FIG. 5, FIG. 7, in order to fix the first telescopic pipe 3 on the second telescopic pipe 4 after adjusting the height, the first telescopic pipe 3 is provided with a reversing mechanism 5, tie rod 6, snap-in mechanism 7, the reversing mechanism 5, tie rod 6, snap-in mechanism 7 are connected in turn, the handrail part 1 is provided with a shaft rod 8, buckle hand 9, the shaft rod 8 extends laterally to the first telescopic pipe 3 and is connected to the reversing mechanism 5, specifically, the upper end of the first telescopic pipe 3 is fixed with a shaft seat 28, the shaft seat 28 is provided with a shaft hole, the shaft rod 8 extends to both sides to the shaft seat 28 on the two first telescopic pipes 3 and inserts it into the shaft hole to rotate, the reversing mechanism 5 includes a connecting rod 15, the end of the shaft rod 8 is provided with an eccentric block 16, the eccentric block 16 is provided with a connecting end 17, the connecting end 17 is eccentric to the axis of the shaft rod 8, and the connecting end 17 is installed with a first rotary pin 31 set horizontally, the tie rod 6 is installed with a horizontally set second rotary pin 32, one end of the connecting rod 15 is connected to the connecting end 17 by a first rotary pin 31, and the other end is connected to the tie rod 6 by a second rotary pin 32, and then the shaft rod 8 forms a crank slider structure with the tie rod 6 through the connecting rod 15, the buckle hand 9 is fixed in the middle of the shaft rod 8, the buckle hand 9 and the shaft rod 8 are fixed by screw connection, and the buckle hand 9 drives the shaft rod 8 to rotate so that the tie rod 6 goes up or down, the tie rod 6 drives the snap-in mechanism 7 to snap or relax the first telescopic pipe 3 at different heights of the second telescopic pipe 4 to adjust the height of the handrail 1 and the telescopic railing 2, in the present embodiment, the specific structure of the snap-in mechanism 7 and the specific connection form of the tie rod 6 and the snap-in mechanism 7 are given below.

[0024] With reference to FIG. 4, in order to fix the second telescopic pipe 4 on the fixing pipe 18 after height adjustment, the fixing pipe 18 side wall is provided with a positioning hole 21, the second telescopic pipe 4 side wall is provided with a guide hole 29 transversely, the second telescopic pipe 4 is provided with a positioning pin 20, The second elastic member 19, the positioning pin 20 is actively installed in the guide hole 29, one end of the positioning pin 20 is active extending from the guide hole 29, the other end of the positioning pin 20 is connected to the second elastic member 19, the second elastic member 19 pushes the positioning pin 20 along the guide hole 29 to slide outside the second telescopic pipe 4, and then the positioning pin 20 is inserted into the positioning hole 21, and then the second telescopic pipe 4 is fixed on the fixing pipe 18; the positioning pin 20 forms a first diagonal wedge 22, the first diagonal wedge 22 is a beveled shaft shoulder wrapped around the outer circumference of the positioning pin 20, the lower end of the first telescopic pipe 3 is provided with a second diagonal wedge 23, so that the lower end of the first telescopic pipe 3 forms a diagonal wedge fit with the positioning pin 20, toggling the buckle.

[0025] Buckle hand 9 loosens the first telescopic pipe 3 and the second telescopic pipe 4, when the first telescopic pipe 3 goes down to the positioning pin 20, the second diagonal wedge 23 pushes down to the first diagonal wedge 22, so that the positioning pin 20 slides along the guide hole 29 to the second telescopic pipe 4, Transversely adducted in the second telescopic pipe 4, the positioning pin 20 exits the positioning hole 21, and then the positioning pin 20 is inserted or exited by sliding up and down of the first telescopic pipe 3 to snap or loosen the second telescopic pipe 4 on the fixing pipe 18, thereby adjusting the height of the handrail part 1 and the telescopic railing 2 by the above two-stage telescopic pipe.

[0026] In the present embodiment, the specific structure of the snap-in mechanism 7 is as follows, focusing on FIGS. 4, FIG. 5, the second telescopic pipe 4 side wall is provided with a plurality of limit holes 12 located at different heights, in the present embodiment, the limit hole 12 is provided with two, the two limit holes 12 are spaced in the vertical direction, the snap-in mechanism 7 and the tie rod 6 are disposed in the first telescopic pipe 3, the snap-in mechanism 7 includes a first elastic member 10, movable pin 11, the wall of the first telescopic pipe 3 is arranged transversely with a pin hole 30, the movable pin 11 is movably installed in the pin hole 30, one end of the movable pin 11 is movably extended from the pin hole 30, the other end of the movable pin 11 is connected to the first elastic member 10, the first elastic member 10 pushes the movable pin 11 into a limit hole 12, the side wall of the tie rod 6 is fitted with the inner wall of the first telescopic pipe 3 to guide the movement of the tie rod 6, so that the tie rod 6 can slide vertically within the first telescopic pipe 3, and the lower end of the tie rod 6 forms an oblique hook 13, the movable pin 11 is provided with a vertically extended oblique hole 14, the oblique hook 13 is actively inserted into the oblique hole 14, and then the movable pin 11 forms a diagonal wedge fit with the tie rod 6, when the buckle hand 9 makes the tie rod 6 go up, the oblique hook 13 pushes against the hole wall of the oblique hole 14, and drives the movable pin 11 to overcome the elastic force of the first elastic member 10 in the pin hole 30 through the vertical sliding of the tie rod 6. A telescopic pipe 3 slides inside, and then the movable pin 11 exits the limit hole 12, after the movable pin 11 exits the limit hole 12, the first telescopic pipe 3 can slide along the second telescopic pipe 4, the shaft rod 8 is provided with a return spring 27, the return spring 27 is set outside the shaft rod 8, and one end is fixed on the shaft rod 8, the other end is fixed on the first telescopic pipe 3, when the buckle hand 9 is not exerted with external force, the return spring 27 drives the shaft rod 8 circumferentially reset so that the shaft rod 8 drives the card connection Structure 7 reset, the first telescopic pipe 3 relative to the second telescopic pipe 4 sliding process, the movable pin 11 is again aligned with a limit hole 12, the first telescopic pipe 3 will be jammed again with the second telescopic pipe 4.

[0027] Preferably, in an embodiment, as shown in FIG. 6, the first telescopic pipe 3 and the second telescopic pipe 4 are provided with a first straight line.

[0028] First linear bearing 24, the second telescopic pipe 4 and the fixing pipe 18 are provided with a second linear bearing 25, so that the sliding resistance of the first telescopic pipe 3 in the second telescopic pipe 4, the sliding resistance of the second telescopic pipe 4 in the fixing pipe 18 is smaller, and the lifting operation process is more labor-saving.

[0029] Preferably in the present embodiment, the handrail part 1 further comprises the handrail body 26, the handrail body 26 avoids the shaft rod 8, buckle hand 9, and the span is fixed at the upper end of the two first telescopic pipes 3, specifically in the present embodiment, the handrail body 26 is tubular, the handrail body 26 is set in the outer circumference of the shaft rod 8, the two ends of the handrail body 26 are respectively fixed on the first telescopic pipe 3 of the telescopic railing 2, in the present embodiment, the handrail body 26 ends are fixed on the shaft seat 28, the handrail body 26 is provided with a buckle hand extension 33, the buckle hand 9 extends the handrail body 26 along the buckle hand extension 33 for the user to operate, during the use of the user hand to hold the handrail body 26, to avoid mistouching the buckle hand 9 and shaft rod 8, resulting in a loose snap connection between the first telescopic pipe 3, the second telescopic pipe 4, and the fixing pipe 18, the handrail body 26 may likewise be extended laterally above the shaft rod 8 and the buckle hand 9, and the plate or rod fixed with the two first telescopic pipe 3, not specifically limited.

[0030] The above is only a better embodiment of the present invention, not a limitation on the design of the present case, all equivalent changes made according to the design key of the present case, are within the scope of protection of the present case.

Claims

1. A height-adjustable bed handrail guard characterized in that it comprises a handrail part (1), two telescopic railings (2), lower ends of the two telescopic railings (2) are fixed to the side of the bed in parallel, and the two telescopic railings (2) are provided vertically with a first telescopic pipe (3), the second telescopic pipe (4), the first telescopic pipe (3) is slidably inserted in the second telescopic pipe (4), the first telescopic pipe (3) is provided with a reversing mechanism (5), a tie rod (6), a snap-in mechanism (7), the reversing mechanism (5), the tie rod (6), and the snap-in mechanism (7) are connected in turn, and the handrail part (1) is fixed across the upper ends of the two first telescopic pipes (3), the handrail part (1) is provided with a shaft rod (8), a buckle hand (9), the shaft rod (8) extends laterally to the first telescopic pipe (3) and is connected to the reversing mechanism (5), the buckle hand (9) is fixed in the middle of the shaft rod (8), the buckle hand (9) drives the shaft rod (8) to rotate so that the tie rod (6) goes up or down, and the tie rod (6) drives the snap-in mechanism (7) to snap or relax the first telescopic pipe (3) the second telescopic pipe (4) at different heights of the second telescopic pipe (4) so that the handrail part (1) and telescopic railing (2) are height-adjusted.

2. The height-adjustable bed handrail guard according to claim 1, wherein a side wall of the second telescopic pipe (4) is provided with a plurality of limit holes (12) located at different heights, the snap-in mechanism (7) and the tie rod (6) are disposed in the first telescopic pipe (3), the snap-in mechanism (7) comprises a first elastic member (10), a movable pin (11), the pipe wall of the first telescopic pipe (3) is provided with a lateral pin hole (30), and the movable pin (11) is movably installed in the pin hole (30), one end of the movable pin (11) protrudes from the pin hole (30), the movable pin (11) connects the other end to the first elastic member (10), the first elastic member (10) pushes the movable pin (11) into a limit hole (12), the movable pin (11) forms a diagonal wedge fit with the tie rod (6), the tie rod (6) slides vertically to drive the movable pin (11) to slide into the first telescopic pipe (3) in the pin hole (30), so that the movable pin (11) exits the limit hole (12).

3. The height-adjustable bed handrail guard according to claim 2, wherein the diagonal wedge fit of the movable pin (11) and the tie rod (6) comprises an oblique hook (13) formed at the lower end of the tie rod (6), an oblique hole (14) extending vertically on the movable pin (11), said oblique hook (13) being movably inserted into the oblique hole (14), and when the tie rod (6) goes up, the oblique hook (13) pushes against the hole wall of the oblique hole (14) so that the movable pin (11) is laterally adducted into the second telescopic pipe (4).

4. The height-adjustable bed handrail guard according to claim 1, wherein the reversing mechanism (5) comprises a connecting rod (15), the shaft rod (8) forms a crank slider structure with the tie rod (6) through the connecting rod (15), and the shaft rod (8) rotates to drive the tie rod (6) to slide vertically.

5. The height-adjustable bed handrail guard according to claim 4, wherein the end of the shaft rod (8) is provided with an eccentric block (16), the eccentric block (16) is provided with a connecting end (17), the connecting end (17) is eccentric to the axis of the shaft rod (8), one end of the connecting rod (15) is rotatably connected to the connecting end (17), and the other end is rotatably connected to the tie rod (6).

6. The height-adjustable bed handrail guard according to claim 1, wherein the telescopic railing (2) further comprises a fixing pipe (18), the fixing pipe (18) is to be fixed on the side of the bed, the side wall of the fixing pipe (18) is provided with a positioning hole (21), the second telescopic pipe (4) is vertically slidably inserted into the fixing pipe (18), the second telescopic pipe (4) sidewall is provided with a lateral guide hole (29), the second telescopic pipe (4) is provided with a positioning pin (20) and a second elastic member (19) , the positioning pin (20) is movably installed in the guide hole (29), and one end of the positioning pin (20) is movably extended from the guide hole (29), the other end of positioning pin (20) is connected to the second elastic member (19), so that when the second elastic member (19) pushes the positioning pin (20) to slide outside the second telescopic pipe (4), the positioning pin (20) is inserted into the positioning hole (21), the lower end of the first telescopic pipe (3) forms a diagonal wedge fit with the positioning pin (20), the buckle hand (9) loosens the first telescopic pipe (3) and the second telescopic pipe (4), and when the first telescopic pipe (3) goes down to the positioning pin (20), the positioning pin (20) is pushed to slide into the second telescopic pipe (4), so that the positioning pin (20) exits the positioning hole (21).

7. The height-adjustable bed handrail guard according to claim 6, wherein a first diagonal wedge (22) is formed on the positioning pin (20), the lower end of the first telescopic pipe (3) is provided with a second diagonal wedge (23), the second diagonal wedge (23) is pushed downward to the first diagonal wedge (22), so that the positioning pin (20) is laterally adducted into the second telescopic pipe (4).

8. The height-adjustable bed handrail guard according to claim 6, wherein a first linear bearing (24) is provided between the first telescopic pipe (3) and the second telescopic pipe (4), and a second linear bearing (25) is provided between the second telescopic pipe (4) and the fixing pipe (18).

9. The height-adjustable bed handrail guard according to claim 1, wherein the armrest portion (1) further comprises a handrail body (26), the handrail body (26) avoids the shaft rod (8), the buckle hand (9) and is fixed at the upper ends of the two first telescopic pipes (3).

10. The height-adjustable bed handrail guard according to claim 1, wherein the shaft rod (8) is provided with a return spring (27), the return spring (27) is set outside the shaft rod (8), and one end is fixed on the shaft rod (8), and the other end is fixed on the first telescopic pipe (3) to drive the shaft rod (8) circumferentially reset so that the shaft rod (8) drives the snap-in mechanism (7) to reset, and the first telescopic pipe (3) is snapped with the second telescopic pipe (4).

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