Rail type infusion support

Abstract

The invention discloses a rail type infusion support and belongs to the technical field of infusion supports, the rail type infusion support comprises a rail, a tackle and an infusion support, the tackle is slidably arranged in the rail, a positioning switch is arranged between the tackle and the rail, the tackle extends downwards to form an extension rod, the extension rod is connected with the infusion support through a universal joint, and the universal joint is connected with the infusion support. And a linkage mechanism for promoting the positioning switch to be automatically turned on when the included angle between the extension rod and the infusion support is less than 160 degrees is arranged between the extension rod and the infusion support. According to the rail type infusion support, the positioning switch can be automatically turned on when a patient moves, so that the patient can move more conveniently.

Description

Technical Field

[0001] The present invention relates to the technical field of infusion stands, in particular to a track-type infusion stand. Background Art

[0002] As a new type of medical infusion equipment, the track-type infusion stand is widely used in the wards of medical institutions. The track-type infusion stand is fixed on the ceiling of the ward. A pulley is set on the infusion stand, and the pulley slides in the track for use, so that the patient can have a certain amount of space to move around the bed.

[0003] However, since the track is installed and fixed on the ceiling, it cannot be absolutely level, or the track will tilt during long-term use, so that the pulley will drive the infusion stand to slide to a relatively low place on the track, causing inconvenience to patients and medical staff.

[0004] Currently, there is also a positioning switch on the pulley on the market. The pulley is positioned by the positioning switch, so that the entire infusion stand can be positioned, so that the infusion stand will not slide accidentally during normal use.

[0005] However, the conventional infusion stand equipped with a positioning switch has a limit on the pulley because the positioning switch limits the position of the pulley. When the patient needs to move around, the positioning switch must be turned on before the movement can be carried out. After the movement, the positioning switch must be turned off, which makes it difficult for the patient to move. Summary of the invention

[0006] In order to make it more convenient for patients to move around the bed, the present application provides a track-type infusion stand.

[0007] The present application provides a track-type infusion stand adopting the following technical solution: A track-type infusion stand comprises a track, a pulley and the infusion stand, wherein the pulley is slidably arranged in the track, a positioning switch is arranged between the pulley and the track, an extension rod is extended downward from the pulley, the extension rod and the infusion stand are connected via a universal joint, and a linkage mechanism is arranged between the extension rod and the infusion stand for causing the positioning switch to open automatically when the angle between the extension rod and the infusion stand is less than 160 degrees.

[0008] By adopting the above technical solution, the medical staff will fix the infusion tube and the needle of the infusion tube on the patient's hand together with tape. When the patient moves, the infusion stand will be driven to rotate through the infusion tube. When the angle between the extension rod and the infusion stand is less than 160, the positioning switch can be automatically opened through the linkage mechanism. After the positioning switch is turned on, the pulley can slide freely, making it more convenient for the patient to move.

[0009] Optionally, the linkage mechanism includes a movable ring that slides up and down and is connected to the extension rod, and a touch tube that is fixedly installed on the infusion stand. The movable ring and the touch tube are arranged correspondingly up and down, and a gap is left between the movable ring and the touch tube. The movable ring is provided with a trigger component that rises with the movable ring to trigger the positioning switch to open.

[0010] By adopting the above technical solution, when the infusion stand is driven to tilt, the touch tube will also tilt accordingly. The tilted touch tube will slowly touch the moving ring and push the moving ring upward. After the moving ring moves upward, the positioning switch is opened through the trigger assembly.

[0011] Optionally, the positioning switch includes two limit rods, which are rotatably arranged on a pulley via a rotating shaft, and the pulley is provided with a torsion spring that forces the limit rods to contact the inner wall of the track for limiting.

[0012] Optionally, the trigger assembly includes a rack slidably arranged in the extension rod up and down, a connecting rod is provided on the movable ring, the connecting rod extends into the extension rod, the extension rod is provided with a sliding groove for the connecting rod to slide up and down, the rack is arranged on the connecting rod, a gear is provided on the rotating shaft, and the rack and the gear are meshed with each other.

[0013] By adopting the above technical solution, the movable ring can drive the rack to move upward during the rising process, and the rack can drive the gear and the rotating shaft to rotate during the upward movement, causing the limit rod to disengage from the inner wall of the track, thereby opening the positioning switch.

[0014] Optionally, the universal joint and the infusion stand are connected via threads.

[0015] By adopting the above technical solution, the infusion stand can be rotated so that the infusion stand and the touch tube move up together. During the upward movement of the touch tube, it will contact the movable ring and push the movable ring to move up together. After the movable ring moves up, the positioning switch is opened by the trigger component, so that the positioning switch can be in a normally open state. The normally open positioning switch can facilitate the pulley to slide into the track, thereby facilitating the disassembly and installation of the pulley, or can meet the needs of other scenarios and expand its scope of use.

[0016] Optionally, the universal joint includes an upper tube body, a lower tube body and a connecting block, an upper rotating shaft is fixedly passed through the end of the upper tube body, a lower rotating shaft is fixedly passed through the end of the lower tube body, and the upper rotating shaft and the lower rotating shaft are rotatably connected to the connecting block respectively.

[0017] Optionally, the lower rotating shaft passes through the upper rotating shaft and is rotatably connected to the upper rotating shaft, a rotating sleeve is provided on the infusion stand, and the rotating sleeve is threadedly connected to the infusion stand, a lifting frame is provided in the infusion stand so as to slide up and down, extension rods are provided on the left and right sides of the lifting frame, an annular groove is provided on the inner wall of the rotating sleeve, the annular groove is coaxially arranged with the rotating sleeve, two extension rods are slidably arranged in the annular groove, a positioning rod is provided on the lifting frame, and positioning grooves for the positioning rod to penetrate are respectively provided on the connecting block, the upper rotating shaft and the lower rotating shaft.

[0018] By adopting the above technical solution, the lifting frame and the positioning rod can be driven to move upward together after rotating the rotating sleeve, so that the positioning rod is respectively inserted into the positioning grooves of the connecting block, the upper rotating shaft and the lower rotating shaft, and the connecting block, the upper rotating shaft and the lower rotating shaft can be limited by the positioning rod, so that the universal joint is locked, the infusion stand will not rotate, and the positioning switch is in a normally closed state, so that when the wind is strong, the infusion stand is not easy to shake, the pulley is not easy to slide accidentally, or it can meet the needs of other scenarios and expand its scope of use.

[0019] Optionally, a connecting rope is provided on the infusion stand, and an elastic ring for being mounted on the patient's arm is provided on the free end of the connecting rope.

[0020] By adopting the above technical solution, the setting of the connecting rope can enable the patient to directly pull the infusion stand through the connecting rope when moving, so that the infusion needle on the patient's arm is not likely to fall off.

[0021] Optionally, a slide groove is provided on the side wall of the pulley, a slider is slidably provided in the slide groove, a spring is provided between the slider and the inner wall of the slide groove, and in a natural state, the slider extends out of the pulley, and a block is provided at the upper end of the track to block the slider.

[0022] The top end of the driving member is connected with the driving member to the rotation of the steering wheel, and the transmission gear and the transmission gear are connected with the driving member to the rotation of the steering wheel.

[0023] By adopting the above technical scheme, after the limit bolt is unscrewed and the infusion stand is tightened upward, the touch tube will push the moving ring and the rack to move upward together, the positioning switch will be in a normally open state, and at the same time, the positioning rod will be inserted into the positioning grooves of the connecting block, the upper rotating shaft and the lower rotating shaft at the same time, so that the universal joint is locked, and a straight rod will be formed between the extension rod, the universal joint and the infusion stand. The rotating sleeve is then rotated to make the positioning rod continue to move upward, pushing the lower push rod, the rack and the upper push rod to continue to move upward together. When the first inclined surface collides with the second inclined surface, the upper push rod continues to move to push the booster block and the slider to retract, so that the slider and the stop block are dislocated with each other in the direction of movement of the pulley, thereby facilitating the workers to disassemble and install the pulley.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. When the patient moves, the infusion stand will be driven to rotate through the connecting rope. When the angle between the extension rod and the infusion stand is less than 160, the positioning switch can be automatically opened through the linkage mechanism. After the positioning switch is turned on, the pulley can slide freely, so that the patient can open and close the positioning switch without the patient, making it more convenient for the patient to move; at the same time, the phenomenon that the infusion needle falls off due to direct movement of the patient without turning on the positioning switch like the conventional infusion stand will not occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a stereogram of an embodiment of the present application.

[0026] Figure 2 It is a partial stereoscopic diagram of the pulley in the embodiment of the present application.

[0027] Figure 3 It is a partial structural diagram of the trigger component in the embodiment of the present application.

[0028] Figure 4 It is a partial stereoscopic view of the universal joint in the embodiment of the present application.

[0029] Figure 5 It is a schematic diagram of the partial structure inside the universal joint and the infusion stand in the embodiment of the present application.

[0030] Figure 6 yes Figure 5 Enlarged view of point A in the middle.

[0031] Figure 7 yes Figure 5 Enlarged view of point B in the middle.

[0032] Figure 8 It is a schematic diagram of the structure inside the pulley in the embodiment of the present application.

[0033] Description of the reference numerals: 1. track; 2. pulley; 3. infusion stand; 4. positioning switch; 41. limit rod; 5. extension rod; 6. universal joint; 61. upper tube body; 62. lower tube body; 63. connecting block; 64. upper rotating shaft; 65. lower rotating shaft; 7. linkage mechanism; 71. touch tube; 72. gap; 73. trigger assembly; 731. rack; 732. connecting rod; 733. sliding groove; 734. gear; 74. moving ring; 8. rotating Movable sleeve; 9, lifting frame; 10, extension rod; 11, annular groove; 12, positioning groove; 13, connecting rope; 14, elastic ring; 15, auxiliary wheel; 16, limit bolt; 17, rotating shaft; 18, positioning rod; 19, through hole; 20, slide groove; 21, slider; 22, spring; 23, stopper; 24, lower push rod; 25, through hole; 26, flange; 27, upper push rod; 28, booster block; 29, first inclined surface; 30, second inclined surface. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-7 This application is described in further detail.

[0035] The present application embodiment discloses a track 1 type infusion stand 3. Figure 1 and Figure 2 , including a track 1, a pulley 2 and an infusion stand 3, Figure 1 The track 1 in the figure shows a part of the track 1. The actual track 1 is in a U shape. The pulley 2 is slidably arranged in the track 1. A positioning switch 4 is arranged between the pulley 2 and the track 1. The positioning switch 4 is installed on the pulley 2. The positioning switch 4 can realize the limiting effect on the pulley 2. An extension rod 5 is fixedly arranged at the bottom of the pulley 2. A connecting rope 13 is arranged on the infusion stand 3. An elastic ring 14 for being mounted on the patient's arm is arranged on the free end of the connecting rope 13.

[0036] The positioning switch 4 includes two limit rods 41, which are rotatably arranged on the pulley 2 through the rotating shaft 17. A torsion spring (not shown in the figure) is arranged on the pulley 2 to force the limit rod 41 to contact the inner wall of the track 1 for limiting. In the natural state, the limit rods 41 on the left and right sides rely on the torsion force of the torsion spring to force the upper ends of the two limit rods 41 to always contact the inner wall of the track 1, and the two limit rods 41 are symmetrical on the left and right. The two limit rods 41 are inclined relative to the central axis of the extension rod 5. The distance between the upper ends of the two limit rods 41 is greater than the distance between the lower ends, so that the pulley 2 can be stuck by the two limit rods 41 in the natural state and cannot move, thereby achieving the limiting effect. A rubber sleeve can be arranged at the end of the limit rod 41 to increase the friction force and make the limiting effect better. An auxiliary wheel 15 is arranged on the pulley 2, and the setting of the auxiliary wheel 15 can make the pulley 2 move more smoothly.

[0037] Reference Figures 1 to 4As shown, the extension rod 5 and the infusion stand 3 are connected by a universal joint 6, and a linkage mechanism 7 is provided between the extension rod 5 and the infusion stand 3 for causing the positioning switch 4 to automatically open when the angle between the two is less than 160 degrees. The linkage mechanism 7 includes a moving ring 74 that slides up and down and is connected to the extension rod 5, and a touch tube 71 that is fixedly installed on the infusion stand 3. The moving ring 74 is sleeved on the extension rod 5, and the moving ring 74 and the touch tube 71 are arranged correspondingly up and down, and a gap 72 is left between the moving ring 74 and the touch tube 71. A trigger component 73 is provided on the moving ring 74, which rises together with the moving ring 74 to trigger the positioning switch 4 to open.

[0038] Reference Figure 3 As shown, the trigger assembly 73 includes a rack 731 slidably arranged in the extension rod 10 up and down, a connecting rod 732 is arranged in the movable ring 74, the connecting rod 732 extends into the extension rod 10, and a sliding groove 733 is provided on the extension rod 10 for the connecting rod 732 to slide up and down, the rack 731 is arranged on the connecting rod 732, and gears 734 are provided on the rotating shaft 17. Teeth are provided on the left and right sides of the rack 731, and the rack 731 is respectively meshed with the gears 734 on the left and right sides, and a cavity is reserved in the pulley 2 and the extension rod 5 for the rack 731 and the gear 734 to move.

[0039] When the infusion stand 3 is pulled by the patient, the infusion stand 3 will tilt, the touch tube 71 will slowly contact the bottom of the moving ring 74 and push the moving ring 74 and the rack 731 to move upward together. The rack 731 will drive the gear 734 to rotate during the upward movement, thereby also driving the two limit rods 41 to rotate, so that the limit rod 41 is separated from the track 1, and the pulley 2 will not be stuck by the limit rod 41, so that the positioning switch 4 is automatically opened; when the patient finishes the activity, the infusion stand 3 will automatically return to the vertical state under the action of its own gravity, the touch tube 71 will be separated from the moving ring 74, and the moving ring 74, the rack 731, the gear 734 and the limit rod 41 will automatically return to the initial state under the action of their own gravity and the torsion spring, and the positioning switch 4 is closed again.

[0040] Reference Figures 5 to 7As shown, the universal joint 6 includes an upper tube body 61, a lower tube body 62 and a connecting block 63. An upper rotating shaft 64 is fixedly penetrated at the end of the upper tube body 61, and a lower rotating shaft 65 is fixedly penetrated at the end of the lower tube body 62. The upper rotating shaft 64 and the lower rotating shaft 65 are respectively rotatably connected to the connecting block 63. The lower rotating shaft 65 passes through the upper rotating shaft 64 and is rotatably connected to the upper rotating shaft 64. A rotating sleeve 8 is sleeved on the infusion stand 3. The rotating sleeve 8 is threadedly connected to the infusion stand 3. A lifting and lowering mechanism is provided in the infusion stand 3 to slide up and down. A lowering frame 9 is provided with extension rods 10 on the left and right sides of the lifting frame 9. An annular groove 11 is provided on the inner wall of the rotating sleeve 8. The annular groove 11 is coaxially arranged with the rotating sleeve 8. Two extension rods 10 are slidably arranged in the annular groove 11. A positioning rod 18 is provided on the lifting frame 9. Positioning grooves 12 for the positioning rod 18 to penetrate are respectively provided on the connecting block 63, the upper rotating shaft 64 and the lower rotating shaft 65. Cavities for the lifting frame 9, the extension rod 10 and the positioning rod 18 to move are respectively provided in the infusion frame 3 and the lower tube body 62.

[0041] When the rotating sleeve 8 is rotated, it can drive the rotating sleeve 8 to move up and down. During the rotation of the rotating sleeve 8, the extension rod 10 will rotate relatively in the annular groove 11 of the rotating sleeve 8, and the rotating sleeve 8 will drive the extension rod 10, the lifting frame 9 and the positioning rod 18 to move up and down together. When the positioning rod 18 passes through the positioning groove 12 of the connecting block 63 and the upper rotating shaft 64 and then enters the positioning groove 12 of the lower rotating shaft 65, the positioning rod 18 can limit the connecting block 63, the upper rotating shaft 64 and the lower rotating shaft 65 at the same time, so that the universal joint 6 is locked, the infusion stand 3 will not rotate, and the positioning switch 4 is in a normally closed state. This structure can be used in windy conditions, the infusion stand 3 is not easy to shake, and the pulley 2 is not easy to slide accidentally, or it can meet the needs of more other scenarios and expand its scope of use.

Claims

1. A track (1) type infusion stand (3), comprising a track (1), a pulley (2) and an infusion stand (3), wherein the pulley (2) is slidably arranged in the track (1), a positioning switch (4) is arranged between the pulley (2) and the track (1), and an extension rod (5) is extended downward from the pulley (2), characterized in that: The extension rod (5) and the infusion stand (3) are connected via a universal joint (6), and a linkage mechanism (7) is provided between the extension rod (5) and the infusion stand (3) for causing the positioning switch (4) to automatically open when the angle between the extension rod (5) and the infusion stand (3) is less than 160 degrees.

2. A track (1) type infusion stand (3) according to claim 1, characterized in that: The linkage mechanism (7) comprises a movable ring (74) connected to the extension rod (5) by sliding up and down, and a touch tube (71) fixedly mounted on the infusion stand (3); the movable ring (74) and the touch tube (71) are arranged correspondingly up and down, and a gap (72) is left between the movable ring (74) and the touch tube (71); and a trigger component (73) is provided on the movable ring (74) and is raised together with the movable ring (74) to trigger the positioning switch (4) to open.

3. A track (1) type infusion stand (3) according to claim 2, characterized in that: The positioning switch (4) comprises two limiting rods (41), wherein the limiting rods (41) are rotatably arranged on the pulley (2) via a rotating shaft (17), and the pulley (2) is provided with a torsion spring for causing the limiting rods (41) to contact the inner wall of the track (1) for limiting.

4. A track (1) type infusion stand (3) according to claim 3, characterized in that: The trigger assembly (73) comprises a rack (731) slidably arranged in the extension rod (10) up and down, a connecting rod (732) is arranged on the movable ring (74), the connecting rod (732) extends into the extension rod (10), the extension rod (10) is provided with a sliding groove (733) for the connecting rod (732) to slide up and down, the rack (731) is arranged on the connecting rod (732), the rotating shaft (17) is provided with a gear (734), and the rack (731) and the gear (734) are meshed with each other.

5. A track (1) type infusion stand (3) according to claim 4, characterized in that: The universal joint (6) and the infusion stand (3) are connected via threads.

6. A track (1) type infusion stand (3) according to claim 5, characterized in that: The universal joint (6) comprises an upper tube body (61), a lower tube body (62) and a connecting block (63); an upper rotating shaft (64) is fixedly passed through the end of the upper tube body (61); a lower rotating shaft (65) is fixedly passed through the end of the lower tube body (62); and the upper rotating shaft (64) and the lower rotating shaft (65) are respectively rotatably connected to the connecting block (63).

7. A track (1) type infusion stand (3) according to claim 6, characterized in that: The lower rotating shaft (65) passes through the upper rotating shaft (64) and is rotatably connected to the upper rotating shaft (64); a rotating sleeve (8) is sleeved on the infusion stand (3); the rotating sleeve (8) is threadedly connected to the infusion stand (3); a lifting frame (9) is slidably arranged in the infusion stand (3); extension rods (10) are arranged on the left and right sides of the lifting frame (9); an annular groove (11) is opened on the inner wall of the rotating sleeve (8); the annular groove (11) is coaxially arranged with the rotating sleeve (8); two extension rods (10) are slidably arranged in the annular groove (11); a positioning rod (18) is arranged on the lifting frame (9); and positioning grooves (12) for the positioning rod (18) to penetrate are respectively arranged on the connecting block (63), the upper rotating shaft (64) and the lower rotating shaft (65).

8. A track (1) type infusion stand (3) according to claim 7, characterized in that: The infusion stand (3) is provided with a connecting rope (13), and the free end of the connecting rope (13) is provided with an elastic ring (14) for being sleeved on the patient's arm.

9. A track (1) type infusion stand (3) according to claim 8, characterized in that: A slide groove (20) is provided on the side wall of the pulley (2), a slider (21) is slidably provided in the slide groove (20), a spring (22) is provided between the slider (21) and the inner wall of the slide groove (20), and in a natural state, the slider (21) extends out of the pulley (2), and a stopper (23) is provided at the upper end of the track (1) to block the slider (21).

10. A track (1) type infusion stand (3) according to claim 9, characterized in that: The other end of the rack (731) relative to the gear (734) is provided with a lower push rod (24), the lower push rod (24) passes through the connecting rod (732) and is fixedly connected to the rack (731), the connecting rod (732) is provided with a through hole (25) for the lower push rod (24) to slide up and down, the end of the lower push rod (24) relative to the rack (731) is provided with a flange (26), the width of the flange (26) is greater than the width of the through hole (25), the lower push rod (24) and the rack (731) are placed on the connecting rod (732) through the flange (26), the lower push rod (24) extends into the upper tube body (61) and is fixed to the fixed rod (732). The positioning rod (18) corresponds to each other up and down, and the positioning grooves (12) on the connecting block (63), the upper rotating shaft (64) and the lower rotating shaft (65) are all through grooves that penetrate up and down. The rack (731) is fixedly provided with an upper push rod (27) at the other end relative to the lower push rod (24), and a booster block (28) is provided on the side wall of the slider (21). The booster block (28) has a first inclined surface (29) on one side relative to the upper push rod (27), and the upper push rod (27) has a second inclined surface (30) on one side relative to the booster block (28) that contacts the first inclined surface (29) and pushes the booster block (28) and the slider (21) to move together.

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