CN107982006A - A kind of medical bed easy to fluid infusion - Google Patents

Abstract

The present invention relates to the technical field of medical devices, and discloses a medical bed which is convenient for dripping, which comprises a bed frame and supporting feet. Upright poles are arranged at both ends of the bed frame, and slide rails are arranged between the upper ends of the two upright poles. The slide rails There is a sliding seat on the top, the lower end of the sliding seat is provided with a suspension ring, and a hook seat is connected to the suspension ring. The upper end of the hook seat is connected with the suspension ring through a hook. Position the telescopic rod, the lower end of the telescopic rod is provided with a base, the outer side of the base is provided with three support rods along the circumference, the inner end of the support rod is connected to the base in rotation, and the outer end of the support rod is provided with a supporting foot pad, self-positioning telescopic rod The outer end of the sleeve is provided with a limit sleeve, which is slidingly connected with the self-positioning telescopic rod, and the outer side of the limit sleeve is provided with a locking handwheel. The patient can temporarily leave the medical bed to go to the toilet with the drip in the process of dripping, which is very convenient to use.

Description

A kind of medical bed that is convenient for hanging IV

technical field

The invention relates to the technical field of medical devices, in particular to a medical bed which is convenient for dripping.

Background technique

The beds used by patients in recuperation can be collectively referred to as medical beds. Medical beds can also be called hospital beds, nursing beds, etc. They are used by patients in recuperation. The main places of use are major hospitals, township health centers, nursing homes, and community health services. center etc. Patients can lie on the medical bed to rest, recuperate, receive IV, eat, etc. Many patients need to receive IV for a long time. Usually, they need to lie on the bed when receiving IV. However, many patients have to go to the toilet when receiving IV. This usually requires family members to remove the drip bottle, lift it up and move it synchronously with the patient to go to the bathroom. It is difficult for the patient to go to the bathroom with the drip bottle, especially when the family member is away, it is very difficult for the patient to use the drip bottle to go to the bathroom inconvenient.

Contents of the invention

In order to solve the above-mentioned problems in the prior art, the present invention provides a medical bed that is convenient for infusion. During the infusion process, the patient can temporarily leave the medical bed with the infusion to go to the toilet, etc., which is more convenient to use.

In order to achieve the above object, the present invention adopts the following technical solutions:

A medical bed that is convenient for hanging drips, comprising a bed frame and supporting legs arranged at both ends of the lower side of the bed frame, vertical poles are provided at both ends of the bed frame, and slide rails are provided between the upper ends of the two vertical poles. The slide rail is provided with a sliding seat, the lower end of the sliding seat is provided with a suspension ring, the suspension ring is connected with a hook seat, the upper end of the hook seat is connected with the suspension ring through a hook, and both sides of the hook seat are provided with A drip suspension bracket, the lower end of the hook seat is fixed with a self-positioning telescopic rod, the lower end of the telescopic rod is provided with a base, the outer side of the base is provided with three support rods along the circumference, the inner end of the support rod and the base The outer end of the support rod is provided with a support foot pad, the outer end of the self-positioning telescopic rod is provided with a limit sleeve, and the limit sleeve is slidably connected with the self-positioning telescopic rod. The outer side of the limit sleeve is provided with a locking handwheel. The hook seat is connected with the sliding seat through the hook, and the sliding seat can move along the slide rail. When the patient lies on the medical bed and hangs the drip, the drip bottle hangs on the drip suspension bracket; Pull down the self-positioning telescopic rod, then expand the three support rods to a horizontal state, open the locking handwheel and slide the limit sleeve to the bottom end of the self-positioning telescopic rod, and press the lower end of the limit sleeve against the inner end of the support leg The position is limited, so that the three supporting legs can be kept horizontally open, and then the hook and the ring can be separated, and the self-positioning telescopic pole can be left in the hand to leave the medical bed. At the same time, the self-positioning telescopic pole can be stood on the ground, which can free hands , It will not affect eating, going to the toilet, etc. when dripping, and it is very flexible to use; after returning to the medical bed, fold the support rod, shorten the self-positioning telescopic rod, and then connect the hook to the suspension ring.

Preferably, the lower end surface of the spacer is provided with an annular positioning groove, and the outer end of the support rod is fixed with a positioning pin. After the outer end of the support rod is folded upwards, the positioning pin is vertically upward, and then the spacer sleeve is moved down a little, so that the positioning pin enters the annular positioning groove, and then the locking handwheel is tightened to realize the folding positioning of the support leg.

As a preference, the bed frame is provided with a fixed bed board and a movable bed board, the inner end of the movable bed board is hinged with the bed frame, the top surfaces of the fixed bed board and the movable bed board are all provided with a mattress, and the bed frame There are side plates on the lower sides of both sides, and a screw is arranged between the two side plates. The screw is connected to the side plate in rotation. There is a screw sleeve, the side of the screw sleeve is provided with a rotating seat, and the middle part of the bottom of the movable bed plate is provided with two spherical hinges, and the rotating seat on the two screw sleeves and the two spherical hinges are connected by two The push rods are connected in one-to-one correspondence, and a reversing drive for driving the screw to rotate forward and reverse is provided on the outside of one end of the screw, and a handle is provided on the outside of the reversing drive. When the patient is lying on the medical bed and wants to lie with the upper body tilted, the angle of the bed board needs to be adjusted at this time. The patient adjusts the reversing drive by himself, holding the handle with one hand and reciprocating back and forth, so that the screw rotates forward. Two The screw sleeves are close to each other, and the two ejector rods will lift the movable bed board. Since the inner end of the movable bed board is hinged with the bed frame, the movable bed board will rotate. The self-locking thread of the movable bed board keeps the opening angle stable; when it is necessary to level the movable bed board, adjust the reversing drive, and when the driving handle reciprocates, the screw rotates in the opposite direction, thereby adjusting the common bed board to a horizontal state; this kind of medical bed, The patient lying on the bed can independently adjust the angle of the bed board, the adjustment is very convenient, no need to ask others to help, and the overall stability is good.

As a preference, the outer ends of the two threads on the screw are provided with limiting convex rings, between the limiting convex ring and the end of the screw is a polished rod, and the polished rod of the screw is provided with a sliding sleeve, the side of the sliding sleeve is in contact with the screw. There are tie rods between the bed frames. The pull rod bears the action force of the screw rod on the support rod, preventing the screw rod from being deformed due to excessive force, and improving the overall stability.

Preferably, the reversing drive includes a housing and an end cover, the lower end of the handle is fixedly connected to the outer side of the housing, a retaining ring is provided on the outer side of the housing, an inner bearing is provided in the retaining ring, and the retaining ring An outer bearing is provided on the outside, and a recessed hole is provided on the outer surface of the side plate, and the outer bearing is snapped into the recessed hole; a through hole is provided in the center of the housing, and one end of the screw rod extends through the through hole. In the housing, the positive ratchet and the reverse ratchet fixed to the screw rod are arranged in the housing, and the direction of the ratchet teeth on the positive ratchet and the reverse ratchet is opposite; the inner wall of the housing is provided with a connecting seat, and the connecting seat is provided with a There is a rotating pin, and the two ends of the rotating pin are respectively provided with a positive pawl and a reverse pawl. Rotationally connected with the rotating pin, a return spring is provided between the outer ends of the positive pawl and the reverse pawl and the housing, and a pawl engagement adjustment mechanism is provided at the lower end of the handle. The engagement state of the positive pawl and the reverse pawl can be changed through the pawl engagement adjustment mechanism, so as to realize the reversing rotation of the screw rod.

As a preference, the pawl engagement adjustment mechanism includes a rotating sleeve, a first flexible steel wire, and a second flexible steel wire. The rotating sleeve is connected to the outer side of the lower end of the handle in rotation, and the lower end of the handle is provided with two Distributed elastic terminals, the inner wall of the rotating sleeve is provided with two sets of limit holes that cooperate with the elastic terminals, one end of the first flexible steel wire is fixedly connected to the lower end of the rotating sleeve, and the other end of the first flexible steel wire is connected to the positive pawl One end of the second flexible steel wire is fixedly connected to the lower end of the rotating sleeve, the other end of the second flexible steel wire is connected to the outer end of the reverse pawl, and the return spring on the positive pawl is sleeved on the first flexible steel wire , the return spring on the anti-pawl is set on the second flexible steel wire; when a set of limit holes in the rotating sleeve is matched with the elastic terminal, the positive pawl and the positive ratchet are engaged, the anti-pawl is separated from the anti-ratche, and the rotation When the sleeve rotates to another set of limit holes to cooperate with the elastic terminal, the positive pawl is separated from the positive ratchet, and the reverse pawl is engaged with the reverse ratchet. When the positive pawl meshes with the positive ratchet and the reverse pawl separates from the reverse ratchet, the drive handle reciprocates at this time, the screw rotates forward, and the angle of the moving bed increases continuously; the positive pawl separates from the positive ratchet, the reverse pawl and the reverse When the ratchet is engaged, the handle is driven to reciprocate, the screw rotates in the opposite direction, and the angle of the moving bed board decreases continuously.

As a preference, the lower end of the handle is located on the upper side of the rotating sleeve to provide a stop ring, and the side of the stop ring is provided with bolts. The limit retaining ring limits the rotation sleeve.

Preferably, the handle includes a telescopic rod and a spherical body, the lower end of the telescopic rod is fixedly connected to the reversing drive, and the spherical body is fixed on the upper end of the telescopic rod. When the bed board is not adjusted, the telescopic rod is retracted to prevent contact; when the angle of the bed board needs to be adjusted, the telescopic rod is extended to increase the torque and save labor.

As a preference, a handle limit seat is provided on the outside of the bed frame, and a long limit slot is formed between the handle limit seat and the bed frame, and the handle passes through the long limit slot, and the two sides of the long limit slot A spring is provided between the end and the handle. The handle limit seat limits the movement angle of the handle, and the spring facilitates the reset of the handle. The operator usually only needs to apply force to the handle in one direction, which saves effort.

Therefore, the present invention has the following beneficial effects: (1) the patient can temporarily leave the medical bed with the drip to go to the toilet with the drip, which is very convenient to use; (2) when the patient needs to adjust the backrest angle, the patient on the bed does not need to With the help of others, you can adjust the angle of the bed board according to your own needs, which is flexible and convenient to use; after adjusting the angle, it can be self-locking, and the overall stability is good.

Description of drawings

Fig. 1 is a kind of structure diagram of the present invention.

Fig. 2 is a schematic diagram of the state after the movable bed plate is rotated by an angle.

Fig. 3 is a state diagram of the movable bed board in Fig. 1 .

Fig. 4 is a state diagram of the movable bed board in Fig. 2 .

Fig. 5 is a schematic diagram of the connection between the screw rod and the moving bed plate.

FIG. 6 is a partially enlarged schematic diagram of A in FIG. 5 .

Fig. 7 is a schematic diagram of cooperation between the positive pawl and the positive ratchet, and the reverse pawl and the reverse ratchet.

Fig. 8 is a schematic diagram of the connection between the rotating sleeve and the handle.

Fig. 9 is a schematic diagram of cooperation between the handle limit seat and the handle.

Fig. 10 is a schematic diagram of the unfolded state after the drip suspension is directly separated from the medical bed.

In the figure: bed frame 1, supporting feet 2, fixed bed board 3, moving bed board 4, mattress 5, side board 6, screw rod 7, bearing seat 8, screw sleeve 9, rotating seat 10, ball hinge 11, ejector rod 12, Reversing drive 13, handle 14, telescopic rod 140, spherical body 141, limit convex ring 15, sliding sleeve 16, pull rod 17, handle limit seat 18, limit long slot 19, spring 20, housing 100, end cap 101, retaining ring 102, inner bearing 103, outer bearing 104, positive ratchet 105, reverse ratchet 106, connecting seat 107, rotating pin 108, positive pawl 109, reverse pawl 110, return spring 111, rotating sleeve 200, first Flexible steel wire 201, second flexible steel wire 202, limit retaining ring 203, elastic terminal 204, annular groove 205, vertical rod 300, slide rail 301, sliding seat 302, suspension ring 303, hook seat 304, hook 305, drip suspension bracket 306 , Self-positioning telescopic rod 307, base 308, support rod 309, support foot pad 310, limit sleeve 311, locking hand wheel 312, positioning pin 313.

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

As shown in Figure 1 and Figure 10, a medical bed that is convenient for hanging drips includes a bed frame 1, support legs 2 arranged at both ends of the lower side of the bed frame, two ends of the bed frame are provided with uprights 300, and the two ends of the uprights Slide rail 301 is provided between the upper end, and slide rail is provided with slide seat 302, and the lower end of slide seat is provided with suspension ring 303, is connected with hook seat 304 on the suspension ring, and the upper end of hook seat is connected with suspension ring by hook 305, and the two sides of hook seat Both sides are provided with a drip suspension bracket 306, and the lower end of the hook seat is fixed with a self-positioning telescopic rod 307. The structure of the self-positioning telescopic rod is consistent with the structure of the rib of the umbrella, and can be self-positioned after stretching; the lower end of the telescopic rod is provided with a base 308 , the outer side of the base is provided with three supporting rods 309 along the circumference, the inner ends of the supporting rods are rotationally connected with the base, the outer ends of the supporting rods are provided with supporting foot pads 310, and the outer ends of the self-positioning telescopic rods are provided with limit sleeves 311 , the limit sleeve is slidingly connected with the self-positioning telescopic rod, and the outer side of the limit sleeve is provided with a locking handwheel 312; the lower end surface of the limit sleeve is provided with an annular positioning groove, and the outer end of the support rod is fixed with a Locating pin 313.

As shown in Fig. 1, Fig. 3 and Fig. 5, a fixed bed board 3 and a movable bed board 4 are arranged on the bed frame, the inner end of the movable bed board is hinged with the bed frame, and the top surfaces of the fixed bed board and the movable bed board are provided with a mattress 5, The lower sides of both sides of the bed frame are provided with side plates 6, a screw rod 7 is arranged between the two side plates, and a bearing seat 8 is arranged on the side plate, and the screw rod passes through the bearing seat to form a rotational connection; To the opposite thread, each segment of the thread is provided with a screw sleeve 9, the side of the screw sleeve is provided with a rotating seat 10, and the bottom middle part of the movable bed plate is provided with two spherical hinges 11, and the rotating seat on the two screw sleeves is connected with the The two spherical hinges are connected one by one by two ejector rods 12. A reversing drive 13 for driving the forward and reverse rotation of the screw is provided on the outside of one end of the screw, and a handle 14 is provided on the outside of the reversing drive; The outer ends of each are provided with a limiting protruding ring 15, between the limiting protruding ring and the end of the screw rod is a polished rod portion, the polished rod portion of the screw rod is provided with a sliding sleeve 16, and a pull rod 17 is arranged between the side of the sliding sleeve and the bed frame. .

As shown in Figures 6 and 7, the reversing drive 13 includes a housing 100 and an end cover 101, the lower end of the handle is fixedly connected to the outer side of the housing, and a retaining ring 102 is provided on the outer side of the housing, and an inner bearing is arranged in the retaining ring 103, an outer bearing 104 is provided outside the retaining ring, and a concave hole is provided on the outer surface of the side plate, and the outer bearing is inserted into the concave hole; a through hole is provided in the center of the housing, and one end of the screw extends into the housing through the through hole , the casing is provided with a positive ratchet 105 and a reverse ratchet 106 fixed to the screw, and the ratchets on the positive ratchet and the reverse ratchet are in the opposite direction; the inner wall of the casing is provided with a connecting seat 107, and the connecting seat is provided with a rotating pin 108, and the rotating pin The positive pawl 109 and the reverse pawl 110 are respectively arranged at the two ends of the front pawl, the positive pawl cooperates with the positive ratchet, the reverse pawl cooperates with the reverse ratchet, the positive pawl and the reverse pawl are all connected with the rotating pin in rotation, the positive pawl, A return spring 111 is provided between the outer end of the anti-pawl and the housing, and a pawl engagement adjustment mechanism is provided at the lower end of the handle.

As shown in Figure 8, the ratchet engagement adjustment mechanism includes a rotating sleeve 200, a first flexible steel wire 201, and a second flexible steel wire 202. The rotating sleeve is rotationally connected to the outer side of the lower end of the handle, and the lower end of the handle is located on the upper side of the rotating sleeve. The retaining ring 203, the side of the limit retaining ring is provided with bolts, the lower end of the handle is provided with two radially distributed elastic terminals 204, and the inner wall of the rotating sleeve is provided with two sets of limit holes that cooperate with the elastic terminals. One end of the steel wire is fixedly connected to the lower end of the rotating sleeve, the other end of the first flexible steel wire is connected to the outer end of the positive pawl, one end of the second flexible steel wire is fixedly connected to the lower end of the rotating sleeve, and the other end of the second flexible steel wire is connected to the anti-ratchet. The outer ends of the claws are connected, the lower end surface of the rotating sleeve is provided with an annular groove 205, the return spring on the positive pawl is set on the first flexible steel wire, and the return spring on the reverse pawl is set on the second flexible steel wire; When a set of limit holes in the rotating sleeve is matched with the elastic terminal, the positive pawl is engaged with the positive ratchet, and the reverse pawl is separated from the reverse ratchet. The pawl is separated from the positive ratchet, and the reverse pawl is engaged with the reverse ratchet.

Handle 14 comprises telescopic rod 140, spherical body 141, and the lower end of institute's telescopic rod is fixedly connected with reversing driver, and spherical body is fixed on the upper end of telescopic rod; The outside of bedstead is provided with handle limit seat 18, as shown in Figure 9, A space-limiting long groove 19 is formed between the handle-limiting seat and the bed frame, the handle passes through the space-limiting long groove, and a spring 20 is arranged between the two ends of the space-limiting long groove and the handle.

In conjunction with the accompanying drawings, the application method of the present invention is as follows: as shown in Figure 1 and Figure 10, the hook seat is connected with the sliding seat through the hook, and the sliding seat can move along the slide rail. In the drip suspension bracket; when the patient needs to go to the toilet or go out while hanging on the drip, pull down the self-positioning telescopic rod, then expand the three support rods to a horizontal state, open the locking handwheel and slide the limit sleeve to self-positioning The lowermost end of the telescopic rod, the lower end of the limit sleeve faces the inner end of the supporting legs to press the limit, so that the three supporting legs are kept in a horizontally open state, and then the hook is separated from the ring, and the self-positioning telescopic rod is held by hand. Leaving the medical bed, you can also stand the self-positioning telescopic rod on the ground at the same time, which can free your hands, and it will not affect eating, going to the toilet, etc. when dripping, and it is very flexible to use; after returning to the medical bed, fold the support rod, The self-positioning telescoping rod is shortened, and the hook is then connected with the lifting ring.

As shown in Figure 1 and Figure 2, when the patient is lying on the medical bed, and the patient needs to change the angle of the trip, at this time, the rotating sleeve is manually adjusted in the positive direction, so that the positive pawl is engaged with the positive ratchet, and the reverse pawl is separated from the reverse ratchet. , then pull out the telescopic rod of the handle, hold the handle to drive the handle back and forth, the positive ratchet drives the positive ratchet to rotate, thereby driving the screw to rotate forward, the two screw sleeves on the screw are constantly approaching, and the ejector will move the top of the bed Make an angle, as shown in Figure 2 and Figure 4, the closer the distance between the two screw sleeves, the larger the opening angle of the movable bed board; when the patient needs to put the movable bed board flat, the patient rotates the adjustment sleeve in the opposite direction so that the positive pawl and the The positive ratchet is separated, the reverse pawl is engaged with the reverse ratchet, and then the handle is driven to reciprocate back and forth, the distance between the two screw sleeves is continuously increasing, and the angle of the movable bed plate is continuously decreasing until it reaches a horizontal state. Patients lying on the bed can adjust the angle of the bed board according to their own needs without the help of others, which is flexible and convenient to use; after the angle is adjusted, it can be self-locked, and the overall stability is good.

Claims (9)

1. a kind of medical bed easy to fluid infusion, including bedstead, the support feet for being located at both ends on the downside of bedstead, it is characterized in that, it is described The both ends of bedstead are equipped with upright bar, and slide is equipped between the upper end of two upright bars, and the slide is equipped with sliding seat, the slip The lower end of seat is equipped with hanging ring, and hook base is connected with the hanging ring, and the upper end of the hook base is connected by linking up with hanging ring, The both sides of the hook base are equipped with drop suspension holdfast, and the lower end of the hook base is fixed with self-positioning telescopic rod, described to stretch The lower end of contracting bar is equipped with base, and the outside of the base is circumferentially arranged with three supporting rods, the inner of the supporting rod and base Between be rotatablely connected, be equipped with support foot pad on the outside of the outer end of the supporting rod, the outer end of the self-positioning telescopic rod is arranged limited Position set, is slidably connected, the outside of the stop collar is equipped with locking handwheel between the stop collar and self-positioning telescopic rod.

2. a kind of medical bed easy to fluid infusion according to claim 1, it is characterized in that, the lower face of the stop collar is set There is annular positioning groove, the outside end of the supporting rod is fixed with positioning pin.

3. a kind of medical bed easy to fluid infusion according to claim 1, it is characterized in that, the bedstead is equipped with fixed bed Plate and dynamic bed board, the inner of the dynamic bed board are hinged with bedstead, and the fixed bed plate, the top surface of dynamic bed board are equipped with mattress, described Side plate is equipped with the downside of the both sides of bedstead, screw rod is equipped between two blocks of side plates, the screw rod is rotatablely connected with side plate, described Two sections of oppositely oriented screw threads are arranged with screw rod, a swivel nut is equipped with every section of screw thread, the side of the swivel nut is equipped with Rotation seat, the bottom middle part of the dynamic bed board are equipped with two flexural pivots, between the rotation seat and two flexural pivots on two swivel nuts Connected one to one by two mandrils, the unidirectional driving for being used for driving screw rod positive and negative rotation is equipped with the outside of one end of the screw rod Device, the outside of the unidirectional driving device are equipped with handle.

4. a kind of medical bed easy to fluid infusion according to claim 3, it is characterized in that, the outer end of two sections of screw threads on screw rod Position limiting convex ring is equipped with, is polished rod portion between position limiting convex ring and the end of screw rod, the polished rod portion of screw rod is equipped with sliding sleeve, the cunning Pull rod is equipped between the side of set and bedstead.

5. a kind of medical bed easy to fluid infusion according to claim 3 or 4, it is characterized in that, unidirectional driving device includes shell Body, end cap, with being fixedly connected on the outside of housing, the outside of the housing is equipped with baffle ring, the baffle ring for the lower end of the handle Interior to be equipped with inner bearing, outer retainer is equipped with outer bearing, and the lateral surface of the side plate is equipped with shrinkage pool, and the outer bearing is caught in recessed In hole；The center of housing is equipped with through hole, and one end of the screw rod is stretched into housing through through hole, is equipped with the housing and spiral shell Positive ratchet that bar is fixed, anti-ratchet, the ratchet direction on positive ratchet, anti-ratchet are opposite；The inner wall of the housing is equipped with connecting seat, The connecting seat is equipped with rotational pin, and the both ends of rotational pin are respectively equipped with positive pawl, anti-pawl, the positive pawl and positive spine Wheel coordinates, and the anti-pawl coordinates with anti-ratchet, and positive pawl, anti-pawl are rotatablely connected with rotational pin, positive pawl, anti-pawl Outer end and housing between be equipped with resetting spring, the lower end of the handle is equipped with pawl engagement adjusting mechanism.

6. a kind of medical bed easy to fluid infusion according to claim 5, it is characterized in that, pawl engagement adjusting machine Structure includes turning set, the first flexible steel wire, the second flexible steel wire, and the lower end outside of the turning set and handle is rotatablely connected, The lower end of the handle is equipped with two radially distributed flexible terminals, and the inner wall of the turning set is equipped with two groups and flexible terminal The limit hole of cooperation, one end of first flexible steel wire are fixedly connected with the lower end of turning set, the first flexible steel wire other end Be connected with the outer end of positive pawl, one end of the second flexible steel wire is fixedly connected with the lower end of turning set, the second flexible steel wire it is another One end is connected with the outer end of anti-pawl, and the resetting spring on positive pawl is set on the first flexible steel wire, the reset on anti-pawl Spring is set on the second flexible steel wire；When one group of limit hole in turning set and flexible terminal coordinate, positive pawl and positive spine Wheel engagement, anti-pawl are separated with anti-ratchet, when turning set turns to another group of limit hole and flexible terminal and coordinates, positive pawl and just Ratchet separation, anti-pawl are engaged with anti-ratchet.

7. a kind of medical bed easy to fluid infusion according to claim 6, it is characterized in that, the lower end of the handle is located at The upside of turning set is equipped with limit stop ring, and the side of the limit stop ring is equipped with bolt.

8. a kind of medical bed easy to fluid infusion according to claim 3, it is characterized in that, the handle includes flexible Bar, orbicule, the lower end of the telescopic rod are fixedly connected with unidirectional driving device, and the orbicule is fixed on the upper of telescopic rod End.

9. a kind of medical bed easy to fluid infusion according to claim 8, it is characterized in that, the outside of the bedstead is equipped with hand Handle limit base, forms spacing elongated slot between handle limit base and bedstead, the handle passes through spacing elongated slot, the spacing elongated slot Both ends and handle between be equipped with spring.