CN202497370U - Hydraulic cylinder and medical bed with the hydraulic cylinder - Google Patents

Abstract

A hydraulic cylinder and a medical bed with the hydraulic cylinder, the hydraulic cylinder includes a base, a switch and a current limiting switch are provided on one side of the periphery of the base, the switch can control the internal pressure of the base, the current limiting switch can be used to limit the flow of hydraulic oil, a first outer tube is sleeved in the base, a second outer tube is sleeved in the first outer tube, a piston rod is sleeved in the second outer tube, and the top of the piston rod abuts against the bed board. The medical bed of the utility model includes at least one of the hydraulic cylinders; the effective height of the bed board is lowered by means of the three-section two-stage lifting of at least one hydraulic cylinder.

Description

Hydraulic cylinder and medical bed with the hydraulic cylinder

technical field

The utility model relates to a hydraulic cylinder structure for a medical bed with reduced effective height, in particular to a medical bed, an operating table or a similar structure suitable for an emergency room in a medical institution.

Background technique

The emergency room of a medical institution is designed for patients who are suddenly ill or injured due to accidents. Therefore, when an ambulance brings an emergency patient, the patient is moved from the stretcher on the ambulance to the medical bed in the emergency room and then treated by the medical staff. Rescue, however, the two hydraulic cylinders set under the bed board of the traditional emergency medical bed in the emergency room are mainly two-stage hydraulic cylinders. As shown in Figure 1, the minimum effective height X of the traditional hydraulic cylinder A still has a considerable height. If the body of the medical staff is relatively small, when the medical bed in the emergency room is lowered to the lowest level, the height of the medical bed board on which the patient lies on his back is about the chest and abdomen height of the medical staff. For example, the medical staff performs cardiopulmonary resuscitation on an emergency patient whose heartbeat has stopped During the operation, the medical personnel are located beside the patient to exert pressure on the chest cavity of the patient. Because the height of the patient lying flat is equal to the waist and abdomen of the rescuer, the medical personnel who rescue cannot use the strength of the body to rescue the patient. The strength of the arm presses the chest cavity of the patient. However, the strength of the arm is insufficient to continuously rescue the patient, which may delay the golden time of rescue, so it is not ideal.

Furthermore, after the first aid is completed, if the patient needs to be checked by more sophisticated instruments, although the medical bed in the emergency room is convenient for medical staff to deliver the patient to various inspection places, is the minimum height of the medical bed in the emergency room lower than or equal to The bed for patients lying in each examination place can be adjusted by the second hydraulic cylinder A when it is lower. If the minimum height of the medical bed in the emergency room is still higher than the bed for patients lying in each examination place, several medical It is not ideal for the staff to move the patient from the medical bed in the emergency room to the bed in the examination place. Although it is less laborious to move from high to low, it still has a certain impact on weak patients.

The present inventor has learned the shortcomings of traditional emergency room medical beds that need to be improved, and expects to provide a hydraulic cylinder structure for medical beds that reduces the effective minimum height of emergency room medical beds, and expects to facilitate the elderly, short, handicapped and weak people to get on and off In order to reduce the risk of getting in and out of the bed due to the excessive height of the traditional bed body, the bed is designed and assembled with great concentration, so as to provide consumers with the use. This is the purpose of the invention of the utility model.

Utility model content

The main purpose of the utility model is to provide a hydraulic cylinder for a medical bed, which reduces the minimum effective height of the medical bed in an emergency room.

The secondary purpose of this utility model is to provide a medical bed with the hydraulic cylinder, through the three-section two-stage lifting of the hydraulic cylinder, the bed board can be raised or lowered synchronously, so that the medical staff can move the patient to each inspection place. bed board.

In order to achieve the above object, the hydraulic cylinder for the medical bed of the present utility model includes: a base, a switch and a current limiting switch are arranged on one side of the peripheral edge of the base, the switch can control the internal pressure of the base, and the current limiting switch can To limit the flow of hydraulic oil, a first outer tube is sleeved inside the base, a second outer tube is sleeved inside the first outer tube, a piston rod is sleeved inside the second outer tube, and the top of the piston rod touches the Connected to the bed board.

As mentioned above, the hydraulic cylinder used for the medical bed, the switch is a manual actuation switch.

As mentioned above for the hydraulic cylinder used in the medical bed, the switch is a push-up pump.

The inner tube wall at the upper edge of the first outer tube has a position limit in the form of steps, and the outer bottom edge of the second outer tube is provided with a limit buckle, and the inner top edge of the second outer tube also has a There is a stepped limit position, an oil hole is provided on the second outer tube near the limit position, and a limit buckle and a U-shaped oil seal are provided at the outer bottom edge of the piston rod.

The utility model also provides a liftable medical bed, comprising: a bed board;

A bed base with several casters below it, at least one hydraulic cylinder above the bed base, the hydraulic cylinder includes a base, a switch and a current limiting switch are provided on one side of the base periphery, the switch can control the base Internal pressure, the current limiting switch can be used to limit the flow of hydraulic oil, a first outer tube is sleeved inside the base, a second outer tube is sleeved inside the first outer tube, and a piston is sleeved inside the second outer tube rod, and the top of the piston rod abuts against the bed board.

The above-mentioned medical bed has two hydraulic cylinders.

As described above for the medical bed, the switch is a push-up pump.

As mentioned above, the inner wall of the upper edge of the first outer tube has a position-limiting position in steps, and the outer bottom edge of the second outer tube is provided with a position-limiting buckle. The inner top edge of the outer tube also has a stepped limit position, and an oil hole is provided on the second outer tube near the limit position, and the outer bottom edge of the piston rod has a limit buckle with a U-shaped oil seal.

As for the above-mentioned medical bed, the casters under the bed base are set to four, each of which is arranged under the four corners of the bed base.

As for the above-mentioned medical bed, at least one hydraulic cylinder provided above the base of the bed is an oil hydraulic cylinder.

Compared with the prior art, the outstanding advantages of the utility model are:

1. Use the three-section two-stage hydraulic cylinder to lower the effective height of the medical bed in the emergency room, which is convenient for medical staff to rescue emergency patients and effectively seize the first aid opportunity.

2. The effective height of the three-section two-section hydraulic cylinder shortens the effective height of the traditional two-section hydraulic cylinder, so that when the hydraulic cylinder is lowered to the bottom, the height of the bed board is also lowered to the lowest point, which is convenient for weak or inconvenient patients to go up and down hospital bed.

3. The bed board is lifted and lowered synchronously by at least one three-section and two-section hydraulic cylinder, which is convenient for medical staff to move patients to various inspection places.

Other features and specific embodiments of the utility model can be further understood in the following detailed description with accompanying drawings.

Description of drawings

Figure 1 is a schematic diagram of the use of a medical bed in an emergency room using a traditional hydraulic cylinder.

Fig. 2 is a three-dimensional appearance view of the embodiment of the utility model.

FIG. 3 is a schematic cross-sectional view of FIG. 2 .

Fig. 4 is a three-dimensional appearance view of the extended state of the embodiment of the utility model.

FIG. 5 is a schematic cross-sectional view of FIG. 4 .

6-7 are schematic diagrams of the use of the utility model embodiment.

[Description of main component symbols]

A. Hydraulic cylinder X. Minimum effective height 1. Hydraulic cylinder

11. Base 12. Switch 121. Manual start switch

122. Remote start switch 13. First outer tube 131. Limit position

14. The second outer tube 141. Limit buckle 142. Limit position

143. Oil hole 15. Piston rod 151. Limit buckle

152. U-shaped oil seal 16. Current limiting switch 171. Pressure relief valve

172. Pressure relief valve 2. Bed base 21. Bed body

3. Patient 4, medical staff Y, minimum effective height

Detailed ways

The utility model is described further below with specific embodiment:

Please refer to Fig. 2-3, the utility model hydraulic cylinder 1 has a base 11, a switch 12 and a current limiting switch 16 are provided on the peripheral side of the base 11, and the current limiting switch 16 is used to limit the flow of hydraulic oil. In this embodiment The switch 12 is a push-up pump, and the top surface of the base 11 is combined with a first outer tube 13. A second outer tube 14 is arranged in the first outer tube 13, and a piston rod 15 is set in the second outer tube 14 again. The inner wall of the upper edge of an outer tube 13 has a step portion to form a spacer 131, while the outer bottom edge of the second outer tube 14 is provided with a spacer snap ring 141, and the inner top edge of the second outer tube 14 is separately There is a limit position 142 that is a stepped portion, and an oil hole 143 is provided at an appropriate distance from the limit position 142 (it can be close to the limit position 142). Moreover, the outer bottom edge of the piston rod 15 has a The limit snap ring 151 and a U-shaped oil seal 152 .

Please refer to Fig. 4-5, switch 12 is activated, the hydraulic oil volume in the base 11 decreases, and the oil pressure increases to push the second outer tube 14 and the piston rod 15 upwards, when the limit of the second outer tube 14 ends When the snap ring 141 reaches the limit position 131 of the first outer tube 13, the second outer tube 14 stops, and the piston rod 15 continues to move upward. When the U-shaped oil seal 152 at the end of the piston rod 15 reaches and exceeds the oil hole 143, the piston The rod 15 stops moving, and the stop 142 is provided to ensure that the piston rod 15 does not exceed the specified stroke.

The two hydraulic cylinders 1 are combined on the top of the bed base 2 in such a way that the switches 12 are opposite, and the two switches 12 are connected by a connecting rod, and the connecting rod is connected with a manual activation switch 121 such as a pedal switch. When stepping on the pedal switch, the two hydraulic cylinders 1 are synchronously raised, and the piston rods 15 of the two hydraulic cylinders 1 are combined with the bottom central two sides of a bed body 21 to form an emergency room medical bed. The base 2 is provided with two pressure relief valves 171 and 172 for controlling the second hydraulic cylinder 1 on the other side of the top; when the patient 3 in need of emergency is moved from the ambulance stretcher to the emergency room medical bed, the emergency room medical bed passes through the second pressure relief valve 171 Or 172 synchronous pressure relief, so that the two hydraulic cylinders 1 can be lowered to the lowest point, that is, the piston rod 15 is received in the second outer tube 14, and the second outer tube 14 is received in the first outer tube 13, so that the lying in the emergency room The height of the patient 3 on the medical bed in the room is about at the height of the thighs of the medical staff 4, as shown in Figure 6, so that the medical staff 4 can use their physical strength to perform cardiopulmonary resuscitation on the patient 3, effectively grabbing the golden time for first aid. Simultaneously, the height of the single hydraulic cylinder 1 can also be lowered through the single pressure relief valve 171 or 172, so that one side of the bed board can be lowered to reach the required height for various first aid. Furthermore, the minimum effective height Y of the medical bed in the emergency room is lowered, which effectively shortens the height between the ground and the bed surface, making it easier for weaker patients 3 to get on and off the bed, as shown in Figure 7 . At the same time, the emergency room medical bed with the lowered minimum effective height Y moves through the wheel body below the bed base 2, so that the medical staff 4 can deliver the emergency room medical bed to each inspection room. Furthermore, the emergency room medical bed with the lowered minimum effective height Y When the bed is moved to each examination room, the two hydraulic cylinders 1 can be synchronously raised or lowered by means of the manpower start switch 121, so that the medical bed in the emergency room is at the same height as the lying bed in each examination room, so that the medical staff 4 can move the patient more conveniently.

The above are only preferred embodiments of the present utility model, and should not be used to limit the applicable scope of the present utility model, and those who are familiar with the technical knowledge in the field can make equivalent changes according to the spirit of the present utility model All modifications and modifications should be included in the protection scope of the present utility model.

Claims (9)

1. hydraulic cylinder that medical bedstead is used, its characteristic comprises:

A base; This base periphery one side is provided with a switch and a current limiting switch, and this switch can be controlled this base internal pressure, and this current limiting switch can be in order to the flow of restriction hydraulic oil; Sheathed one first outer tube in this base; The first outer tube internal sleeve is provided with one second outer tube, a sheathed piston rod in this second outer tube, and the top of this piston rod is connected to bed board.

2. hydraulic cylinder as claimed in claim 1 is characterized in that: this switch is one and raises pump.

3. hydraulic cylinder as claimed in claim 1; It is characterized in that: the upper limb inner tubal wall of this first outer tube has a spacing place that is portion of class; The outside root edge of this second outer tube then is provided with a spacing clasp; The inboard apical margin of second outer tube has a spacing place that is portion of class in addition, on this second outer tube, is provided with an oilhole in addition near this spacing place, and the root edge place, the outside of this piston rod has a spacing clasp and a U type oil sealing.

4. one kind has liftable medical bedstead, and its characteristic comprises:

A bed board;

A bed foundation, its below is provided with several castors, and this bed foundation top is provided with at least one hydraulic cylinder; This hydraulic cylinder comprises a base, and this base periphery one side is provided with a switch and a current limiting switch, and this switch can be controlled this base internal pressure; This current limiting switch can be in order to the flow of restriction hydraulic oil, sheathed one first outer tube in this base, and the first outer tube internal sleeve is provided with one second outer tube; A sheathed piston rod in this second outer tube, the top of this piston rod is connected to bed board.

5. liftable medical bedstead as claimed in claim 4 is characterized in that: this medical bedstead has two described hydraulic cylinders.

6. liftable medical bedstead as claimed in claim 4 is characterized in that: this switch is one and raises pump.

7. liftable medical bedstead as claimed in claim 4; It is characterized in that: the upper limb inner tubal wall of this first outer tube has a spacing place that is portion of class; The outside root edge of this second outer tube then is provided with a spacing clasp; The inboard apical margin of this second outer tube has a spacing place that is portion of class in addition, on this second outer tube, is provided with an oilhole in addition near this spacing place, and the root edge place, the outside of this piston rod has a spacing clasp and a U type oil sealing.

8. liftable medical bedstead as claimed in claim 4 is characterized in that: the castor of this bed foundation below is made as four, respectively is located at the below in bed foundation four corners.

9. liftable medical bedstead as claimed in claim 4 is characterized in that: this at least one set hydraulic cylinder of bed foundation top is an oil hydraulic cylinder.

Images