CN110141717A - An easily adjustable transfusion chair with cushioning effect - Google Patents

Abstract

The invention belongs to the technical field of infusion chairs, and specifically discloses an easily adjustable infusion chair with cushioning effect, including a seat, a chair back and chair legs, the seat includes a base and a cushion, and the cushion can slide along the inner wall of the base , the bottom of the cushion and the inner wall of the base are enclosed to form a buffer cavity, and a buffer device is provided in the buffer cavity, and the buffer device includes a guide plate, a fixed plate, a movable plate slidably connected with the fixed plate, and a The gear between the guide plate and the movable plate, the top of the guide plate is affixed to the center of the bottom of the cushion, and the bottom end of the guide plate is connected to the bottom of the buffer chamber through a shock absorbing spring, the The bottom end of the fixed plate is fixedly connected with the bottom of the buffer chamber, and the gears are respectively meshed with the guide plate and the movable plate. The invention can effectively overcome the problem that the transfusion chair has no cushioning effect, and at the same time solve the problem that the height of the transfusion rod is difficult to adjust.

Description

An easily adjustable transfusion chair with cushioning effect

technical field

The invention relates to the technical field of transfusion chairs, in particular to an easily adjustable transfusion chair with buffer effect.

Background technique

The infusion chair is also called drip chair. It is mainly used in medical units to infuse patients. In the early days, very simple seats or sofas were used. The quality, safety, and usability were poor. Seats are developing in the direction of multi-function, comfort, safety, and environmental protection, and they can take better care of patients in terms of ease of use.

Chinese Patent No. CN201621234566.1 discloses an infusion chair with an automatic retractable infusion stand, including an infusion chair body, on which an infusion stand is installed, the infusion stand includes a fixed head, a motor is installed in the fixed head, and the output of the motor The shaft is fixedly connected with a transmission rod, the transmission rod is threadedly connected with a nut, the nut is fixed with a telescopic rod, and the telescopic rod is sleeved on the transmission rod; the outer casing of the telescopic rod is provided with a protective sleeve, and one end of the protective sleeve is fixed to the fixed head connection, the maximum radius of gyration of the cross-section of the telescopic rod is greater than the minimum gyration radius of the cross-section of the protective sleeve; a motor switch is provided on the body of the infusion chair, and the motor switch is electrically connected to the motor; It has the effect of cushioning and shock absorption. When the patient with a serious condition uses it, after a large movement, the seat will be stiff, and the stiffness of the limbs will make the patient uncomfortable and even affect the treatment. Secondly, when passing through uneven roads or road conditions When it is poor, it cannot cushion and absorb shocks, which will cause the infusion chair to bump, and the riding comfort is greatly reduced. Moreover, the height of the infusion rod is not easy to adjust, which affects the use. Another example is that Chinese Patent No. CN201520664778.2 discloses a chair for infusion for children, including a base, chair legs, universal wheels, pedals, etc., the top of the base is fixedly connected with a hydraulic cylinder, and the top of the hydraulic cylinder is connected to the piston. Flexible connection, the top of the piston is movably connected with a telescopic column, the top of the telescopic column is provided with a shock absorber, the top of the shock absorber is fixedly connected with a seat board, and the inside of the shock absorber is provided with a shock absorber Shock spring, although the shock-absorbing spring can reduce the vibration, but the spring itself will have reciprocating motion, on the one hand, it will cause fatigue damage to the spring, on the other hand, it will also cause the patient to shake, which is not conducive to the stability of the infusion; secondly, the spring descends faster , is also not conducive to the stability of the patient's infusion.

Contents of the invention

Aiming at the above-mentioned shortcomings existing in the prior art, the present invention provides an easily adjustable infusion chair with a cushioning effect, which can effectively overcome the problem that the infusion chair in the prior art does not have a cushioning effect, and at the same time solve the problem of the infusion rod The height is not easy to adjust the problem.

An easily adjustable infusion chair with cushioning effect, comprising a seat, a chair back and chair legs, the seat includes a base and a cushion, the cushion is sleeved in the base and can slide along the inner wall of the base, the cushion The bottom of the base and the inner wall of the base are enclosed to form a buffer cavity, and a buffer device is provided in the buffer cavity, and the buffer device includes a guide plate, a fixed plate that is respectively set opposite to the side wall of the guide plate, and slides with the fixed plate. The movable plate connected and the gear arranged between the guide plate and the movable plate, the top of the guide plate is affixed to the center of the bottom of the seat cushion, and the bottom end of the guide plate is connected to the buffer through the shock absorbing spring. The bottom of the cavity is connected, the bottom end of the fixed plate is affixed to the bottom of the buffer cavity, and the top end of the fixed plate extends into the buffer cavity, and the gears are respectively meshed with the guide plate and the movable plate .

Adopt the above-mentioned technical solution: when the patient sits on the seat, the seat will be displaced in the vertical direction due to its own activities or the bumps during the movement of the infusion chair, and the height will change. At this time, the buffer device When it starts to work, when the position of the seat cushion is lowered by the external impact, the position of the guide plate will drop accordingly, driving the gear meshed with it to rotate, and then driving the position of the movable plate to rise. Shared force, that is, the external impact force is downward, while the shock-absorbing spring and the movable plate give upward support force, and the force is decomposed in multiple layers, so that the rapid decline of the seat can be changed into a slow decline, which plays a buffering role. The position of the guide plate continues to decline, and the damping spring connected to the bottom of the seat plays a further buffering role; thereby, the bottom of the seat has a good effect of buffering and damping in the vertical direction. Secondly, the function of the movable plate and the gear, The reciprocating movement of the shock-absorbing spring is greatly limited, and the patient will be more comfortable when riding.

Further, the cross-section of the guide plate is a regular N-gon, N is greater than or equal to 3, and one or more gears are distributed on the outside of each side of the side wall of the regular N-gon.

Further, the bottom end of the seat cushion is provided with a buffer pad facing the position of the movable plate; the process of making the movable plate rise and contact the bottom end of the seat cushion has a certain compression space, the contact is stable, the impact on the patient is reduced, and the comfort is further improved. Moreover, the buffer pad cooperates with the movable plate, the gear and the shock absorbing spring to improve the impact load and the shock absorbing capacity.

Further, the bottom end of the guide plate is provided with a limiting plate, and the position of the limiting plate facing the fixing plate is provided with a through hole for the fixing plate to pass through. The inner wall of the buffer chamber fits together, so that the guide plate can only do linear reciprocating motion, and the buffer force of the shock-absorbing spring at the lower part can be evenly transmitted to the guide plate, which can better buffer the external impact force, and it can move back on the seat cushion. guide the process.

Further, it also includes an infusion rod fixed on one side of the seat, the infusion rod includes a lower rod and an upper rod that is telescopically inserted into the lower rod, and the upper rods are spaced side by side along the length direction. There are a plurality of adjustment slots, and the adjustment slots are sequentially provided with compression springs and pins from the inside to the outside, and the position of the lower rod corresponding to one of the adjustment slots is provided with an adjustment hole, and a movable adjustment hole is installed in the adjustment hole. A button part, the end of the button part is arranged in contact with the pin.

Furthermore, the button part includes a pressing rod and a return spring sleeved on the pressing rod, the end of the pressing rod is fixed with a limiting part, and the two ends of the returning spring abut against the limiting parts respectively. bit portion and the outside of the lower post.

Furthermore, hangers and hooks are fixed on the infusion pole, which is convenient for hanging water bottles and the like.

Adopt the above technical scheme: the pin and the pressing rod can pass through the adjustment slot and the adjustment hole and can move in the adjustment slot and the adjustment hole, and the pin can pass through the adjustment slot under the elastic force of the compression spring , located at the junction of the adjustment groove and the adjustment hole, to realize the fixing of the upper rod and the lower rod, the length of the infusion rod is automatically locked, the structure is simple, and the operation is convenient; Pin and make the pin withdraw from the adjustment hole into the adjustment groove, at this time, the upper rod can be slid to adjust the telescopic length of the infusion rod, so that the infusion rod will not shake or shake during the telescopic adjustment, thereby ensuring the safety of the infusion; adjust After the completion, the pressing lever is released, and the pressing lever can pop out of the adjustment hole under the action of the return spring, so that the button part can be taken out conveniently.

Further, a cleaning assembly is fixed on the outside of the seat back, the cleaning assembly includes a water tank, and a water outlet pipe is provided at the lower end of the water tank.

Furthermore, the side of the water tank close to the back of the chair is fixed with a locking column, the back of the chair is provided with a slot matching the locking column, and the locking column is provided with a positioning groove, The positioning groove is provided with a fixed spring and a slider connected with the fixed spring, the position of the seat back corresponding to the positioning groove is provided with a positioning hole, the positioning hole communicates with the positioning groove, and the positioning hole is provided with a A screw rod, the end of the screw rod fits the slide block, and the screw rod is threadedly connected with the chair back.

Adopt the above technical solution: add a water tank, water can be taken through the outlet pipe at the bottom, which is convenient for cleaning the infusion chair, and the water tank is easy to disassemble and easy to use. When the water tank needs to be fixed, manually press the slider into the positioning groove, and snap the locking column After being combined into the card slot, the slider passes through the positioning slot under the elastic force of the fixed spring, and is located at the junction of the positioning slot and the positioning hole, and the water tank is fixed on the back of the chair. When the water tank is used, the screw is tightened, and the bottom of the screw squeezes the slider to make it withdraw from the positioning hole, and the water tank can be easily removed.

Furthermore, the outlet pipe is a corrugated pipe, the water tank is provided with a flow valve, and the top of the water tank is provided with a water injection hole.

Further, a cushion is fixedly installed on the inner side of the chair back, which can alleviate the fatigue of long-term infusion.

Further, universal wheels are fixedly installed on the bottom of the chair legs, so that the movement is more flexible, and it is convenient to quickly transfer the patients who are being infused in an emergency.

Compared with the known public technology, the technical solution provided by the invention has the following beneficial effects:

1. By adding the design of the buffer device, the infusion chair has an excellent buffering and shock-absorbing effect; through the mutual cooperation of the guide plate, the gear and the movable plate, two opposite forces are formed on the seat cushion, and the external impact force on the seat Multi-layer decomposition is carried out to change the rapid decline of the seat into a slow decline. In this way, the bottom of the seat has a good vertical shock absorption effect. Secondly, the function of the movable plate and the gear greatly limits the cushioning The reciprocating motion of the vibration spring makes the patient more comfortable when riding.

2. The height of the infusion stand of the present invention is easy to adjust, through the action of pins, compression springs, pressing rods and return springs, the automatic locking and telescopic adjustment of the length of the infusion rod can be conveniently realized, and the structure is simple and the operation is convenient.

3. The invention achieves the effect that the infusion chair is easy to clean by increasing the design of the water tank, and the water tank is easy to disassemble and easy to use.

Description of drawings

Fig. 1 is the structural representation of the easy-to-adjust type infusion chair with cushioning effect of embodiment 1;

Fig. 2 is the structural representation of the buffer device of embodiment 1;

Fig. 3 is the schematic diagram of the distribution structure of the fixed plate of the buffer device of embodiment 1;

Fig. 4 is the local schematic diagram of the transfusion rod of embodiment 1;

Fig. 5 is a schematic diagram of the distribution structure of the fixed plate of the buffer device of embodiment 2;

Fig. 6 is the structural representation of the buffer device of embodiment 3;

Fig. 7 is a schematic structural view of the easily adjustable infusion chair with cushioning effect in embodiment 4;

Fig. 8 is a partial structural schematic diagram of the connection between the water tank and the back of the chair in embodiment 4;

In the figure: 1. Chair seat; 11. Base; 12. Cushion; 2. Chair back; 3. Cushion; 4. Chair leg; 5. Universal wheel; 6. Buffer cavity; 7. Buffer device; 71. Guide plate 72, fixed plate; 73, movable plate; 74, gear; 75, damping spring; 76, buffer pad; 77, limit plate; 8, infusion rod; 81, lower rod; 82, upper rod; 83, adjustment Groove; 84, compression spring; 85, pin; 86, adjustment hole; 87, button piece; 871, pressing rod; 872, return spring; 9, cleaning component; 91, water tank; ; 94, fixed spring; 95, slide block; 96, screw rod.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Example 1

An easily adjustable infusion chair with a cushioning effect, see Figures 1-2, comprising a seat 1, armrests are fixedly connected to both sides of the seat 1, and a chair back 2 is provided at the rear end of the seat 1, The inner side of the chair back 2 is fixedly equipped with a back cushion 3, the lower end of the seat 1 is provided with a chair leg 4, and the bottom of the chair leg 4 is fixedly equipped with a universal wheel 5, which is more flexible to move, and is convenient for emergency situations. , quickly transfer the patient who is being infused;

The seat 1 includes a base 11 and a cushion 12, the base 11 is provided with a cavity with an open top, the cushion 12 is sleeved in the base 11, and can slide along the inner wall of the base 11, the cushion 12 The bottom and the inner wall of the base 11 enclose a buffer cavity 6, and the buffer cavity 6 is provided with a buffer device 7, and the buffer device 7 includes a guide plate 71, facing the side wall of the guide plate 71 and along the guide plate. 71 a plurality of fixed plates 72 arranged axially symmetrically, a movable plate 73 slidingly connected with the fixed plates 72 and a gear 74 arranged between the guide plate 71 and the movable plate 73, the top of the guide plate 71 is in contact with the The center of the bottom of the seat cushion 12 is affixed, and the bottom end of the guide plate 71 extends into the buffer chamber 6, and is connected to the bottom of the buffer chamber 6 through a shock absorbing spring 75. Specifically, the shock absorbing spring 75 One end of the guide plate 71 is fixedly connected with the bottom end of the guide plate 71, and the other end is fixedly connected with the bottom of the buffer chamber 6. The bottom end of the fixed plate 72 is fixedly connected with the bottom of the buffer chamber 6, and the fixed The top end of the plate 72 extends into the buffer cavity 6, the fixed plate 72 is provided with a chute towards the side of the guide plate 71, and one end of the movable plate 73 is fitted into the chute, and is connected with the fixed plate 73. The plate 72 is slidingly connected, and the gear 74 is fixed on the inner wall of the buffer chamber 6 through a gear rack (not shown), and the gear 74 is respectively engaged with the guide plate 71 and the movable plate 73. The width of the guide plate 71 is 0.2～0.4 times of the width of the seat cushion 12 to ensure that it has enough support for the weight of the human body, and at the same time it is convenient to guide the gear 74; Each surface is provided with a rack, and the gear 74 is engaged with the outer side of the rack so that the moving direction of the movable plate 73 is opposite to that of the guide plate 71. In this embodiment, the cross section of the guide plate 71 Rectangular, the fixed plate 72 and the gear 74 are two respectively, and the two fixed plates 72 are symmetrically distributed on the outside of a pair of parallel side walls of the guide plate 71, and the fixed plate 72 and the gear 74 can also be Four, the four fixed plates 72 are symmetrically distributed on the two pairs of parallel side walls outside of the guide plate 71, and Fig. 3 is an example with two fixed plates 72; There is a height change in the direction. At this time, the buffer device 7 acts. When the seat cushion 12 is lowered by the external impact position, the buffer device 7 forms two opposite forces on the seat cushion 12, that is, the external impact force is downward, and the shock absorbing spring 75 and the movable plate 73 give an upward supporting force, and the force is decomposed in multiple layers, thereby changing the rapid decline of the seat 1 into a slow decline, which plays a buffer role. The position of the guide plate 71 continues to decline, and the reduction of the connection at the bottom Shock spring 75 plays a further buffering effect; thereby, the bottom of the seat has a good vertical direction buffering and shock-absorbing effect.

The bottom end of the seat cushion 12 is provided with a buffer pad 76 facing the position of the movable plate 73. In this embodiment, the buffer pad 76 is a rubber pad; the process of making the movable plate 73 rise to the bottom of the seat cushion 12 is more stable. , improve comfort; and the buffer pad 76 cooperates with the movable plate 73, the gear 74 and the damping spring 75 to improve the impact load and the buffering and damping capacity.

One side of the seat 1 is fixed with an infusion rod 8, and a hanger and a hook are fixed on the infusion rod 8. Referring to FIG. 4, the infusion rod 8 includes a lower rod 81 and a retractable sleeve The upper rod 82 in the lower rod 81 has a plurality of adjustment slots 83 arranged side by side and evenly spaced along the length direction, and the adjustment slots 83 are sequentially provided with compression springs 84 and pins 85 from the inside to the outside. The lower rod 81 is provided with an adjustment hole 86 corresponding to the position of one of the adjustment grooves 83, and a movable button 87 is installed in the adjustment hole 86, and the end of the button 87 is arranged in contact with the pin 85; The button member 87 includes a pressing rod 871 and a return spring 872 sheathed on the pressing rod 871, the end of the pressing rod 871 is fixed with a limit portion, and the two ends of the returning spring 872 respectively abut against the The limiting portion and the outer side of the lower rod 81 . Through the joint action of the pin 85, the compression spring 84, the pressing rod 871 and the return spring 872, the automatic locking and telescopic adjustment of the length of the infusion rod 8 can be conveniently realized, and the structure is simple and the operation is convenient.

Example 2

Embodiment 2 is basically the same as Embodiment 1, and the difference is that the cross section of the guide plate 71 is regular N-gon, N is greater than or equal to 3, and each side of the regular N-gon sidewall is distributed with one or A plurality of gears 74, the side length of the regular N-gon is 0.2 to 0.4 times the width of the seat cushion 12, and the multi-directional arrangement of the gears 74 forms the same strength of support and buffering in all directions, which is beneficial to improve the seat. Comfort and cushioning performance. In this embodiment, referring to FIG. 5 , taking the cross-section of the guide plate 71 as an equilateral triangle as an example, there are three fixed plates 72 and three gears 74 respectively, and the three fixed plates 72 are arranged on the guide Each side of the triangular side wall of the plate 71 is outside.

Example 3

Embodiment 3 is basically the same as Embodiment 1 or 2, and the difference is that: referring to FIG. 6 , the bottom end of the guide plate 71 is provided with a limiting plate 77, and the limiting plate 77 is provided with a fixed plate 72 to pass through. through the through hole, the outer side of the limiting plate 77 is attached to the inner wall of the buffer cavity 6, and forms a T-shaped structure with the guide, so that the guide plate 71 can only do linear reciprocating motion, and the shock absorbing spring 75 at the lower part The buffering force can be evenly transmitted to the guide plate 71 to better buffer the external impact force, and it can play a guiding role in the re-entry process of the seat cushion 12 .

Example 4

Embodiment 4 is basically the same as Embodiment 1 or Embodiment 2 or Embodiment 3, the difference being that: referring to Figs. The lower end of the water tank 91 is provided with a water outlet pipe 92, and the water outlet pipe 92 is a corrugated pipe. An engaging column 93 is fixed on the side, and a card slot matched with the engaging column 93 is provided on the chair back 2, and a positioning groove is provided on the engaging column 93, and a fixing groove is arranged in the positioning groove. Spring 94 and the slide block 95 that is connected with fixed spring 94, described chair back 2 is provided with positioning hole corresponding to the position of described positioning groove, and described positioning hole communicates with positioning groove, and described positioning hole is provided with screw rod 96, so The end of the screw rod 96 fits the slider 95 , and the screw rod 96 is threadedly connected with the seat back 2 . A water tank 91 is added, water can be taken through the water outlet pipe 92 at the bottom, which is convenient for cleaning the infusion chair, and through the cooperation of the engaging column 93 and the slot, the water tank 91 is easy to disassemble and easy to use.

Claims (10)

1. An easily adjustable infusion chair with a cushioning effect, comprising a chair base (1), a chair back (2) and chair legs (4), characterized in that the chair base (1) includes a base (11) and Cushion (12), described cushion (12) is sheathed in the base (11), and described cushion (12) can slide along the inner wall of base (11), the bottom of described cushion (12) and base (11) The inner wall encloses a buffer cavity (6), and a buffer device (7) is provided in the buffer cavity (6), and the buffer device (7) includes a guide plate (71), facing the side of the guide plate (71). The fixed plate (72) provided on the wall, the movable plate (73) slidingly connected with the fixed plate (72) and the gear (74) arranged between the guide plate (71) and the movable plate (73), the The top of the guide plate (71) is affixed to the center of the bottom of the seat cushion (12), and the bottom end of the guide plate (71) is connected to the bottom of the buffer chamber (6) through a damping spring (75) , the bottom of the fixed plate (72) is affixed to the bottom of the buffer cavity (6), and the top of the fixed plate (72) extends into the buffer cavity (6), the gear (74 ) are respectively engaged with the guide plate (71) and the movable plate (73). 2. The easily adjustable transfusion chair with cushioning effect as claimed in claim 1, characterized in that, the cross section of the guide plate (71) is a regular N-gon, N is greater than or equal to 3, and the side of the regular N-gon is Distributed outside each side of the wall is one or more gears (74). 3. The easily adjustable infusion chair with cushioning effect according to claim 1, characterized in that, a cushioning pad (76) is provided at the position where the bottom end of the seat cushion (12) faces the movable plate (73). 4. The easily adjustable transfusion chair with cushioning effect according to claim 1, characterized in that, the bottom end of the guide plate (71) is provided with a limiting plate (77), and the limiting plate (77) is positively A through hole is provided at the position of the fixing plate (72), and the outer side of the limiting plate (77) is attached to the inner wall of the buffer chamber (6). 5. The easily adjustable infusion chair with cushioning effect as claimed in claim 1, further comprising an infusion bar (8) fixed on one side of the seat (1), the infusion bar ( 8) It includes a lower rod (81) and an upper rod (82) that can be telescopically inserted into the lower rod (81). The upper rod (82) has a plurality of adjustment slots (83) arranged side by side and evenly spaced along the length direction. , the adjustment groove (83) is provided with a compression spring (84) and a pin (85) sequentially from the inside to the outside, and the position of the lower rod (81) corresponding to one of the adjustment grooves (83) is provided with an adjustment hole ( 86), a movable button (87) is installed in the adjustment hole (86), and the end of the button (87) is arranged in contact with the pin (85). 6. The easily adjustable infusion chair with cushioning effect according to claim 5, characterized in that, the button (87) includes a pressing rod (871) and a reset button sleeved on the pressing rod (871). The spring (872), the limit portion is fixed at the end of the pressing rod (871), and the two ends of the return spring (872) abut against the limit portion and the outer side of the lower rod (81) respectively. 7. The easily adjustable transfusion chair with cushioning effect according to claim 1, characterized in that, a cleaning assembly (9) is fixed on the outside of the chair back (2), and the cleaning assembly (9) includes a water tank ( 91), the lower end of the water tank (91) is provided with an outlet pipe (92). 8. The easily adjustable transfusion chair with cushioning effect according to claim 7, characterized in that, the side of the water tank (91) close to the chair back (2) is fixed with an engaging column (93), the The back of the chair (2) is provided with a draw-in groove matched with the engaging column (93), the engaging column (93) is provided with a positioning groove, and the positioning groove is provided with a fixed spring (94) and The slide block (95) connected with the fixed spring (94), the position of the seat back (2) corresponding to the positioning groove is provided with a positioning hole, the positioning hole communicates with the positioning groove, and the positioning hole is provided with A screw (96), the end of the screw (96) fits the slider (95), and the screw (96) is threadedly connected with the chair back (2). 9. The easily adjustable transfusion chair with cushioning effect as claimed in claim 7, characterized in that, the water outlet pipe (92) is a bellows, the water tank (91) is provided with a flow valve, and the water tank (91) 91) The top is provided with a water injection hole. 10. The easily adjustable infusion chair with cushioning effect according to claim 1, characterized in that, universal wheels (5) are fixedly installed on the bottom of the chair legs (4).