Infusion support with quick locking function

Abstract

The invention relates to the technical field of infusion supports, in particular to an infusion support with a quick locking function, which comprises a guide plate, an infusion sleeve is fixedly mounted on the bottom surface of the guide plate, an adjusting rod is slidably mounted on the inner wall of the infusion sleeve, a base is fixedly mounted at the bottom end of the adjusting rod, and four guide wheels are rotatably mounted on the inner wall of the guide plate; four guide openings distributed in an annular array are formed in the outer wall of the base. Compared with the prior art, along with infusion proceeding, the gravity of an infusion bag is reduced, the guide block slides upwards under the action of the first supporting spring, after infusion is completed, the guide block ejects the ejector rod, the sliding plate slides downwards through the warping plate, the limiting toothed plate is separated from the limiting teeth, limiting on the supporting frames is relieved, and the supporting frames slide in the direction close to each other under the action of the first spring; the infusion tube is clamped by the clamping blocks to be closed, so that the blood return condition after infusion is effectively avoided, the infusion safety of a patient is ensured, and the safety and practicability of the device are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of infusion stands, and in particular to an infusion stand with a quick locking function. Background Art

[0002] An infusion stand is a basic medical device used in medical care work to hang infusion bottles or infusion bags to support intravenous infusion treatment. It is widely used in various scenarios such as hospitals, clinics, first aid sites, and home care, and is an important auxiliary tool to ensure the smooth progress of the infusion process and the safety of patients.

[0003] After retrieval, a Chinese patent with the publication number CN110755710B discloses a multifunctional infusion stand, which includes an upper connecting pipe, a connecting frame, and a lower connecting pipe. A plurality of holes are opened on the wall of the upper connecting pipe. Upper connecting sleeves and lower connecting sleeves are respectively provided at both ends of the connecting frame. The upper connecting pipe is installed in the upper connecting sleeve. A plurality of round holes are opened on the wall of the lower connecting pipe, and the lower connecting pipe and the lower connecting sleeve are in sliding fit; An elevation adjustment mechanism is also installed on the lower connecting sleeve to adjust the elevation position of the lower connecting pipe on the lower connecting sleeve. A rotation locking mechanism is also provided inside the lower connecting pipe. When the lower connecting pipe is retracted, the lower connecting pipe can be locked inside the upper connecting pipe and locked; The length of the infusion stand can be flexibly adjusted to meet the usage requirements of different users; At the same time, it is convenient to contract and easy to organize, improving the comfort during use. However, when this solution is actually used, there are still the following deficiencies:

[0004] During the process of clinical intravenous infusion treatment, when medical staff hang an infusion bag containing medicinal liquid on the hook of the infusion stand and complete standard operations such as puncture, air exhaust, and drip rate adjustment, the infusion system enters a continuous medicinal liquid delivery state. However, in actual medical treatment scenarios, due to factors such as the shortage of nursing staff, the difficulty of simultaneously monitoring multiple beds, and the weak safety awareness of patients or accompanying family members, there are often hidden dangers of failure to timely monitor the infusion progress. When the medicinal liquid in the infusion bag is completely infused through the intravenous catheter, if the infusion clamp device is not timely closed or the infusion device is not removed, under the dual influence of gravity and the siphon effect generated by the heartbeat, the blood will flow reversely along the infusion catheter into the superficial veins of the upper limb, and may even break through the puncture point and infiltrate into the subcutaneous tissue, resulting in blood stasis in the local blood vessels, activation of coagulation factors, and visible blood return phenomenon, which will cause increased pain at the puncture site of the patient, formation of subcutaneous ecchymosis, and increased risk of venous thrombosis.

[0005] Therefore, the present application provides an infusion stand with a quick locking function. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to propose an infusion stand with a quick locking function to solve the problem that the infusion of the medicinal liquid on the infusion stand cannot automatically stop after completion.

[0007] For the above purposes, the present invention provides an infusion stand with a quick locking function, including a guide plate. A liquid infusion sleeve is fixedly installed on the bottom surface of the guide plate. An adjusting rod is slidably installed on the inner wall of the liquid infusion sleeve. A base is fixedly installed at the bottom end of the adjusting rod. Four guide wheels are rotatably installed on the inner wall of the guide plate;

[0008] Four guiding ports are formed in an annular array on the outer wall of the base. A guiding block is slidably installed on the inner wall of the guiding port. An infusion support rod is fixedly installed on the side surface of the guiding block. A limiting sleeve corresponding to the infusion support rod is fixedly installed on the outer wall of the base. A first support spring is fixedly installed between the bottom surface of the guiding block and the inner bottom surface of the base. Four groups of symmetrically arranged through ports are formed in an annular array on the bottom surface of the base. A connecting plate is slidably installed on the inner wall of the through port. A clamping block is fixedly installed at the bottom end of the connecting plate. Four groups of trigger components corresponding to the connecting plate are arranged in an annular array on the inner wall of the base;

[0009] An inner cavity is formed at the top end of the adjusting rod. A locking component is arranged inside the inner cavity. A positioning component corresponding to the four guide wheels is arranged inside the guide plate.

[0010] Preferably, the trigger component includes a connecting block fixedly installed at one end of the guiding block inside the base. Two fixing frames are symmetrically and fixedly installed on the inner wall of the base. A support frame is slidably installed on the side surface of the fixing frame. A first spring is fixedly installed between the opposite side surfaces of the support frame and the fixing frame. The bottom surface of the support frame is fixedly connected to the top surface of the connecting plate. A limiting structure corresponding to the support frame is arranged inside the base.

[0011] Preferably, the limiting structure includes two brackets symmetrically and fixedly installed on the inner wall of the base. A sliding plate is slidably installed on the side surfaces of the two brackets. Two second springs are fixedly installed on both sides of the top surface of the sliding plate. Two limiting toothed plates are fixedly installed at the top ends of the four second springs. Limiting teeth corresponding to the limiting toothed plates are fixedly installed on the side surfaces of the two support frames. A tipping plate is hinged to the top surface of the fixing frame. The bottom end of the tipping plate is movably connected to the side surface of the sliding plate. A push rod corresponding to the connecting block penetrates through the top surface of the fixing frame. A third spring is sleeved on the push rod. The two ends of the third spring are respectively fixedly connected to the push rod and the fixing frame.

[0012] Preferably, the connecting block is triangular. The push rod is movably connected to the tipping plate.

[0013] Preferably, the locking assembly includes an annular groove formed on the outer wall of the adjusting rod corresponding to the inner cavity. A fixing rod is fixedly installed on the inner bottom surface of the inner cavity. Three transmission rods distributed in an annular array are hinged on the outer wall of the fixing rod. An adjusting screw is disposed through the top surface of the adjusting rod, and the adjusting screw is rotatably connected to the through portion. A threaded ring is threadedly sleeved on the outer wall of the adjusting screw inside the inner cavity. Three driving rods distributed in an annular array are hinged on the outer wall of the threaded ring. A connecting rod is hinged between the transmission rod and the driving rod at the same position. A push rod is fixedly installed on the side surface of the connecting rod. One end of the push rod away from the connecting rod passes through the inner wall of the annular groove and is fixedly installed with a locking arc plate.

[0014] Preferably, a first torsion spring is sleeved on the adjusting screw, and both ends of the first torsion spring are fixedly connected to the adjusting screw and the inner cavity respectively. A winding disc is fixedly installed at the top end of the adjusting screw. A cable is disposed inside the winding disc, and the end of the cable passes through the outer wall of the infusion sleeve.

[0015] Preferably, anti-slip lines are provided on the outer wall of the locking arc plate, and a relief groove is formed on the top surface of the winding disc.

[0016] Preferably, the positioning assembly includes four guiding grooves formed on the inner bottom surface of the guide plate corresponding to the guide wheels. A friction plate is slidably installed on the inner wall of the guiding groove. A second supporting spring is fixedly installed between the inner wall of the guiding groove and the friction plate. A connecting telescopic rod is disposed through the bottom surface of the guide plate. A cross-shaped blade corresponding to the friction plate is fixedly installed at the top end of the connecting telescopic rod. A second torsion spring is sleeved on the outer wall of the connecting telescopic rod, and both ends of the second torsion spring are fixedly connected to the connecting telescopic rod and the guide plate respectively. A connecting structure is provided on the connecting telescopic rod.

[0017] Preferably, the connecting structure includes a one-way bearing disposed on the inner bottom surface of the relief groove, and the outer wall of the one-way bearing is fixedly connected to the inner wall of the relief groove. The inner wall of the one-way bearing is fixedly connected to the telescopic end of the connecting telescopic rod. A vertical plate is fixedly installed on the bottom surface of the guide plate. An extrusion arc plate corresponding to the connecting telescopic rod is fixedly installed at the bottom end of the vertical plate. A pull rope is fixedly installed on the side surface of the vertical plate, and the end of the pull rope passes through the outer wall of the infusion sleeve.

[0018] Preferably, the vertical plate is made of an elastic material, and a pull ring is fixedly installed at the bottom end of the pull rope.

[0019] The beneficial effects of the present invention:

[0020] 1. The infusion stand with a quick locking function realizes the limit locking of the guide wheel by setting a guide wheel and a friction plate. When the cable is pulled, the cross leaf pushes the friction plate to fit against and squeeze the outer wall of the guide wheel, so that the guide plate is fixed in the guide rail, preventing the device from shifting due to collision and ensuring the stability during use. When unlocking, pull the pull rope to move the vertical plate, squeeze the arc plate to separate from the outer wall of the connecting telescopic rod, and the connecting telescopic rod reverses under the action of the torsion spring, and the cross leaf returns to the gap of the friction plate to release the locking of the guide wheel. The operation is convenient and flexible, ensuring the stability and adjustability of the device during use.

[0021] 2. The infusion stand with a quick locking function realizes the separation of the push rod sliding to pull the locking arc plate from the inner wall of the infusion sleeve by setting a winding disc and a locking arc plate when pulling the cable, releasing the limit between the adjusting rod and the infusion sleeve, which is convenient for medical staff to push the adjusting rod to adjust the position of the base. After the adjustment is completed, release the cable, and the locking arc plate is pushed against the inner wall of the infusion sleeve again to fix the position of the adjusting rod, realizing the flexible adjustment and reliable fixation of the height of the adjusting rod, which is convenient for medical staff to use the device according to actual needs.

[0022] 3. The infusion stand with a quick locking function realizes the separation of the limiting tooth plate and the limiting tooth by setting a clamping block and a connecting block. As the infusion progresses, the gravity of the infusion bag decreases, and the guiding block slides upward under the action of the first support spring. After the infusion is completed, the guiding block pushes the ejector rod, and the sliding plate slides downward through the rocker, releasing the limit on the support frame. Under the action of the first spring, the support frames slide towards each other, and the infusion tube is clamped by the clamping blocks to seal it, effectively avoiding blood backflow after the infusion is completed and ensuring the safety of the patient during infusion, improving the safety and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only those of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the partial structure of the present invention Figure 1 ;

[0026] Figure 3 It is Figure 2 The enlarged schematic diagram of the structure at A in

[0027] Figure 4 It is a schematic diagram of the partial structure of the present invention Figure 2 ;

[0028] Figure 5 This is a schematic diagram of the base structure of the present invention;

[0029] Figure 6 It is a schematic diagram of a partial cutaway structure of the base of the present invention;

[0030] Figure 7 It is a schematic diagram of the internal structure of the inner cavity of the present invention;

[0031] Figure 8 It is a schematic diagram of the partial cutaway structure of the guide plate of the present invention;

[0032] Figure 9 This is a schematic diagram of the winding reel structure of the present invention;

[0033] Figure 10 for Figure 4 Enlarged structural diagram at B in the middle.

[0034] The markings in the figure are:

[0035] 11. Guide plate; 12. Infusion sleeve; 13. Adjustment rod; 14. Base; 15. Guide wheel; 21. Guide port; 22. Guide block; 23. Infusion support rod; 24. Limit sleeve; 25. Support spring 1; 31. Connecting block; 32. Fixing frame; 33. Support frame; 34. Spring 1; 35. Through port; 36. Connecting plate; 37. Clamping block; 41. Bracket; 42. Slide plate; 43. Spring 2; 44. Limiting tooth plate; 45. Limiting teeth; 46. Seesaw; 47. Ejector rod; 48. Spring 3 ; 51. Inner cavity; 52. Annular groove; 53. Fixed rod; 54. Transmission rod; 55. Adjusting screw; 56. Threaded ring; 57. Driving rod; 58. Connecting rod; 59. Push rod; 510. Locking arc plate; 511. Torsion spring 1; 512. Winding disk; 513. Cable; 61. Guide groove; 62. Friction plate; 63. Support spring 2; 64. Connecting telescopic rod; 65. Cross leaf; 66. Torsion spring 2; 67. One-way bearing; 68. Vertical plate; 69. Extrusion arc plate; 610. Pull rope. DETAILED DESCRIPTION

[0036] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0037] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should have the ordinary meanings understood by those with ordinary skills in the field to which the present invention pertains. The "first", "second" and similar terms used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. Words such as "comprising" or "including" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to represent relative position relationships, and when the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0038] As Figure 1 , Figure 5 , Figure 6 shown, an infusion stand with a quick locking function includes a guide plate 11. A bottom surface of the guide plate 11 is fixedly installed with an infusion sleeve 12. An adjusting rod 13 is slidably installed on an inner wall of the infusion sleeve 12. A bottom end of the adjusting rod 13 is fixedly installed with a base 14. Four guide wheels 15 are rotatably installed on an inner wall of the guide plate 11;

[0039] Four guiding openings 21 distributed in an annular array are formed on an outer wall of the base 14. A guiding block 22 is slidably installed on an inner wall of the guiding opening 21. A side surface of the guiding block 22 is fixedly installed with an infusion support rod 23. A limiting sleeve 24 corresponding to the infusion support rod 23 is fixedly installed on the outer wall of the base 14. A first support spring 25 is fixedly installed between a bottom surface of the guiding block 22 and an inner bottom surface of the base 14. Four groups of symmetrically arranged through openings 35 are formed on a bottom surface of the base 14 in an annular array. A connecting plate 36 is slidably installed on an inner wall of the through opening 35. A bottom end of the connecting plate 36 is fixedly installed with a clamping block 37. Four groups of trigger components corresponding to the connecting plate 36 are arranged in an annular array on an inner wall of the base 14;

[0040] The trigger component includes a connecting block 31 fixedly installed at an end of the guiding block 22 inside the base 14. The connecting block 31 is triangular. Two fixing frames 32 are symmetrically and fixedly installed on an inner wall of the base 14. A support frame 33 is slidably installed on a side surface of the fixing frame 32. A first spring 34 is fixedly installed between opposite side surfaces of the support frame 33 and the fixing frame 32. A bottom surface of the support frame 33 is fixedly connected to a top surface of the connecting plate 36. A limiting structure corresponding to the support frame 33 is arranged inside the base 14;

[0041] The limiting structure includes two brackets 41 symmetrically and fixedly installed on the inner wall of the base 14. A slide plate 42 is slidably installed on the sides of the two brackets 41. Two springs II 43 are fixedly installed on both sides of the top surface of the slide plate 42. The tops of the four springs II 43 are fixedly installed with two limiting toothed plates 44. Limiting teeth 45 corresponding to the limiting toothed plates 44 are fixedly installed on the sides of the two support frames 33. A seesaw 46 is hinged to the top surface of the fixed frame 32, and the bottom end of the seesaw 46 is movably connected to the side of the slide plate 42. A top rod 47 corresponding to the connecting block 31 is arranged through the top surface of the fixed frame 32. The top rod 47 is movably connected to the seesaw 46. A spring III 48 is sleeved on the top rod 47, and both ends of the spring III 48 are fixedly connected to the top rod 47 and the fixed frame 32 respectively;

[0042] During use, the guide plate 11 is installed in the guide rail on the ward ceiling. The staff can drive the guide plate 11 by pulling the base 14. The guide plate 11 can move in the guide rail through the guide wheels 15 to adjust the position of the entire device for convenient use. Medical staff can hang the infusion bag on the infusion support rod 23. When hanging, under the action of the gravity of the infusion bag, it can drive the infusion support rod 23 and the guide block 22 to slide downward along the guide port 21 and compress the first support spring 25. When the guide block 22 moves downward, it can drive the connecting block 31, causing the connecting block 31 to separate from the ejector rod 47. At this time, under the action of the third spring 48, the ejector rod 47 can slide downward and drive the seesaw 46, so that the slide plate 42 at the other end of the seesaw 46 can slide upward along the support 41. And the limit tooth plate 44 on the seesaw 46 can contact the limit tooth 45. As the connecting block 31 continues to slide, under the action of the connecting block 31, the two support frames 33 can slide away from each other along the fixed frame 32. In this direction, the inclined surfaces of the limit tooth 45 and the limit tooth plate 44 are opposite. Therefore, with the cooperation of the second spring 43, the support frames 33 can slide normally. After the sliding is completed, the vertical parts of the limit tooth plate 44 and the limit tooth 45 are opposite. At this time, the position of the support frames 33 can be fixed. After the two support frames 33 are separated, the two connecting plates 36 can slide and separate in the through hole 35. Then, the infusion tube connected to the infusion bag is placed in the limit sleeve 24. At this time, the infusion tube can also be located between the two clamping blocks 37. As the infusion progresses, when the liquid in the infusion bag flows out, its gravity can decrease. Under the support of the first support spring 25, the guide block 22 can slide upward. After the infusion is completed, at this time, the guide block 22 can rise to the highest position and push the ejector rod 47, causing the ejector rod 47 to drive the slide plate 42 to slide downward through the seesaw 46. The limit tooth plate 44 on the slide plate 42 can separate from the limit tooth 45 on the support frame 33, releasing the limit on the support frame 33. At this time, under the action of the first spring 34, the two support frames 33 can slide towards each other and clamp the infusion tube through the clamping blocks 37, making the infusion tube be clamped in a closed state, effectively avoiding the occurrence of blood backflow after the infusion is completed and ensuring the safety of the patient's infusion.

[0043] Such as Figure 2 , Figure 3 , Figure 7As shown, an inner cavity 51 is provided at the top of the adjusting rod 13, and a locking assembly is provided on the inner side of the inner cavity 51. The locking assembly includes an annular groove 52 provided on the outer wall of the adjusting rod 13 and corresponding to the inner cavity 51. A fixing rod 53 is fixedly installed on the inner bottom surface of the inner cavity 51. Three transmission rods 54 distributed in an annular array are hinged on the outer wall of the fixing rod 53. An adjusting screw 55 is penetrated on the top surface of the adjusting rod 13, and the adjusting screw 55 is rotatably connected to the penetration. The outer wall of the adjusting screw 55 located on the inner side of the inner cavity 51 is threadedly sleeved with a threaded ring 56. The outer wall of the threaded ring 56 is hinged with three driving rods 57 distributed in an annular array. The transmission rods located at the same position 54. A connecting rod 58 is hinged between the driving rods 57, and a push rod 59 is fixedly installed on the side of the connecting rod 58. The end of the push rod 59 away from the connecting rod 58 passes through the inner wall of the annular groove 52 and is fixedly installed with a locking arc plate 510. The outer wall of the locking arc plate 510 is provided with anti-slip grooves. A torsion spring 511 is sleeved on the adjusting screw 55, and the two ends of the torsion spring 511 are respectively fixedly connected to the adjusting screw 55 and the inner cavity 51. A winding disk 512 is fixedly installed on the top of the adjusting screw 55. A yield groove is opened on the top surface of the winding disk 512. A cable 513 is arranged on the inner side of the winding disk 512, and the end of the cable 513 passes through the outer wall of the infusion sleeve 12.

[0044] After the position adjustment is completed, the staff can adjust the height of the adjustment rod 13 so that the base 14 can be adjusted to the corresponding height for the convenience of medical staff. During the adjustment, the medical staff can pull the cable 513 to make the winding drum 512 unwind and rotate, and the winding drum 512 can drive the adjusting screw 55 to rotate when it rotates, and compress the torsion spring 511. Since the transmission rod 54, the driving rod 57, and the connecting rod 58 located in the same vertical position form a whole, the fixed rod 53 is connected with the threaded ring 56 to guide the threaded ring 56. Therefore, when the adjusting screw 55 rotates, the height of the threaded ring 56 can be adjusted, so that the threaded ring 56 moves upward to pull the driving rod 57. When the driving rod 57 is pulled, the connecting rod 58 and the transmission rod 54 Pulling makes the push rod 59 slide toward the inner side of the inner cavity 51, thereby pulling the locking arc plate 510, so that the locking arc plate 510 moves into the annular groove 52 and separates from the inner wall of the infusion sleeve 12, and the limit between the adjusting rod 13 and the infusion sleeve 12 can be released; the medical staff can push the adjusting rod 13 to adjust the position of the base 14, and after the adjustment is completed, the medical staff can loosen the cable 513. At this time, under the action of the torsion spring 511, the adjusting screw 55 and the winding disk 512 can be reversed, and the winding disk 512 can be reversed when the winding disk 512 is reversed. The cable 513 can be reeled in, and the adjusting screw 55 can drive the threaded ring 56 to reset when it is reversed, so that the locking arc plate 510 is pushed against the inner wall of the infusion sleeve 12 again, thereby fixing the position of the adjusting rod 13.

[0045] like Figure 4, Figure 8 , Figure 9 , Figure 10 As shown, a positioning assembly corresponding to the four guide wheels 15 is provided on the inner side of the guide plate 11, and the positioning assembly includes four guide grooves 61 corresponding to the guide wheels 15 and provided on the inner bottom surface of the guide plate 11, and a friction plate 62 is slidably installed on the inner wall of the guide groove 61, and a second support spring 63 is fixedly installed between the inner wall of the guide groove 61 and the friction plate 62, and a connecting telescopic rod 64 is provided through the bottom surface of the guide plate 11, and a cross leaf 65 corresponding to the friction plate 62 is fixedly installed on the top of the connecting telescopic rod 64, and a second torsion spring 66 is sleeved on the outer wall of the connecting telescopic rod 64, and the two ends of the second torsion spring 66 are respectively fixedly connected to the connecting telescopic rod 64 and the guide plate 11, and a connecting structure is provided on the connecting telescopic rod 64;

[0046] The connection structure includes a one-way bearing 67 arranged on the bottom surface of the give way groove, and the outer wall of the one-way bearing 67 is fixedly connected to the inner wall of the give way groove, and the inner wall of the one-way bearing 67 is fixedly connected to the telescopic end of the connecting telescopic rod 64. A vertical plate 68 is fixedly installed on the bottom surface of the guide plate 11, and the vertical plate 68 is made of elastic material. An extrusion arc plate 69 corresponding to the connecting telescopic rod 64 is fixedly installed on the bottom end of the vertical plate 68. A pull rope 610 is fixedly installed on the side of the vertical plate 68, and the end of the pull rope 610 passes through the outer wall of the infusion sleeve 12, and a pull ring is fixedly installed on the bottom end of the pull rope 610;

[0047] During the reciprocating rotation of the winding reel 512, when unwinding, the rotating one-way bearing 67 of the winding reel 512 is in a locked state. Therefore, when the winding reel 512 rotates, it can drive the connecting telescopic rod 64 to rotate through the one-way bearing 67. When the connecting telescopic rod 64 rotates, it can drive the cross-shaped leaf 65 and compress the second torsion spring 66. In the initial state, the cross-shaped leaf 65 is located between the four friction plates 62. After rotation, the cross-shaped leaf 65 can push the four friction plates 62, causing the friction plates 62 to slide along the guide groove 61 and fit and press against the outer wall of the guide wheel 15, realizing the limit locking of the guide wheel 15. The guide plate 11 can be fixed in the guide rail, preventing the device from being displaced by being hit by the head of family members or other people, ensuring the stability of use. When the winding reel 512 winds and reverses, this direction is the free state of the one-way bearing 67. Therefore, when the winding reel 512 reverses, it cannot drive the connecting telescopic rod 64 to rotate. And after the connecting telescopic rod 64 drives the cross-shaped leaf 65 to rotate, under the action of the elastic force of the vertical plate 68, the arc plate 69 is squeezed to frictionally squeeze the connecting telescopic rod 64, making the connecting telescopic rod 64 unable to reverse under the action of the second torsion spring 66, ensuring the locking of the guide wheel 15. When it is necessary to release the limit of the guide plate 11 after the infusion is completed, at this time, the medical staff can pull the pull rope 610. When the pull rope 610 is pulled, it can drive the vertical plate 68 to move, so that the extrusion arc plate 69 at the bottom of the vertical plate 68 is separated from the outer wall of the connecting telescopic rod 64, and the limit on the connecting telescopic rod 64 can be released. Under the action of the second torsion spring 66, the connecting telescopic rod 64 can reverse and drive the cross-shaped leaf 65 to reverse back to the gap between the friction plates 62, releasing the locking of the guide wheel 15.

[0048] When the technical solution provided by the present invention is in use, the guide plate 11 is installed in the guide rail on the ceiling of the ward. The staff can drive the guide plate 11 by pulling the base 14. The guide plate 11 can move in the guide rail through the guide wheels 15 to adjust the position of the entire device for convenient use. After the position adjustment is completed, the staff can adjust the height of the adjusting rod 13 so that the base 14 can be adjusted to a corresponding height for the convenience of medical staff. During the adjustment, the medical staff can pull the cable 513 to make the winding disc 512 unwind and rotate. When the winding disc 512 rotates, it can drive the adjusting screw 55 to rotate and compress the first torsion spring 511. Since the transmission rod 54, the driving rod 57, and the connecting rod 58 at the same vertical position form an integral body, and the fixed rod 53 is connected to the threaded ring 56 to play a guiding role for the threaded ring 56. Therefore, when the adjusting screw 55 rotates, it can adjust the height of the threaded ring 56, causing the threaded ring 56 to move upward and pull the driving rod 57. When the driving rod 57 is pulled, it can pull the connecting rod 58 and the transmission rod 54, causing the push rod 59 to slide inward in the inner cavity 51, thereby pulling the locking arc plate 510, making the locking arc plate 510 move into the annular groove 52 and separate from the inner wall of the infusion sleeve 12, and the limit between the adjusting rod 13 and the infusion sleeve 12 can be released;

[0049] The medical staff can then push the adjusting rod 13 to adjust the position of the base 14. After the adjustment is completed, the medical staff can release the cable 513. At this time, under the action of the first torsion spring 511, the adjusting screw 55 and the winding disc 512 can reverse rotate. When the winding disc 512 reversely rotates, it can wind the cable 513, and when the adjusting screw 55 reversely rotates, it can drive the threaded ring 56 to reset, making the locking arc plate 510 press against the inner wall of the infusion sleeve 12 again to fix the position of the adjusting rod 13;

[0050] During the reciprocating rotation of the winding reel 512, when unwinding, the rotating one-way bearing 67 of the winding reel 512 is in a locked state. Therefore, when the winding reel 512 rotates, it can drive the connecting telescopic rod 64 to rotate through the one-way bearing 67. When the connecting telescopic rod 64 rotates, it can drive the cross-shaped leaf 65 and compress the second torsion spring 66. In the initial state, the cross-shaped leaf 65 is located between the four friction plates 62. After rotation, the cross-shaped leaf 65 can push the four friction plates 62, causing the friction plates 62 to slide along the guide groove 61 and fit and press against the outer wall of the guide wheel 15, realizing the limit locking of the guide wheel 15. The guide plate 11 can be fixed in the guide rail, preventing the device from being displaced by being hit by the head of family members or other people, ensuring the stability of use. When the winding reel 512 winds and reverses, this direction is the free state of the one-way bearing 67. Therefore, when the winding reel 512 reverses, it cannot drive the connecting telescopic rod 64 to rotate. And after the connecting telescopic rod 64 drives the cross-shaped leaf 65 to rotate, under the action of the elastic force of the vertical plate 68, the arc plate 69 can press and rub against the connecting telescopic rod 64, making the connecting telescopic rod 64 unable to reverse under the action of the second torsion spring 66, ensuring the locking of the guide wheel 15. When it is necessary to release the limit of the guide plate 11 after the infusion is completed, at this time, the medical staff can pull the pull rope 610. When the pull rope 610 is pulled, it can drive the vertical plate 68 to move, so that the arc plate 69 at the bottom of the vertical plate 68 is separated from the outer wall of the connecting telescopic rod 64, and the limit of the connecting telescopic rod 64 can be released. Under the action of the second torsion spring 66, the connecting telescopic rod 64 can reverse and drive the cross-shaped leaf 65 to reverse back to the gap between the friction plates 62, releasing the locking of the guide wheel 15;

[0051] After the position and height are adjusted, medical staff can hang the infusion bag on the infusion support rod 23. When hanging, under the action of the gravity of the infusion bag, the infusion support rod 23 and the guide block 22 can slide downward along the guide port 21, and compress the first support spring 25. When the guide block 22 moves downward, it can drive the connecting block 31, so that the connecting block 31 is separated from the ejector rod 47. At this time, under the action of the third spring 48, the ejector rod 47 can slide downward and drive the seesaw 46, so that the slide plate 42 at the other end of the seesaw 46 can slide upward along the bracket 41, and the limit tooth plate 44 on the seesaw 46 can contact the limit tooth 45. As the connecting block 31 continues to slide, under the action of the connecting block 31, the two support frames 33 can slide away from each other along the fixed frame 32. In this direction, the inclined surface parts of the limit tooth 45 and the limit tooth plate 44 are opposite to each other. Therefore, with the cooperation of the second spring 43, the support frame 33 can slide normally, and after the sliding is completed, the vertical parts of the limit tooth plate 44 and the limit tooth 45 are opposite to each other. At this time, the position of the support frame 33 can be fixed. After the two support frames 33 are separated, the two connecting plates 36 can slide and separate in the through port 35. Then, place the infusion tube connected to the infusion bag in the limit sleeve 24. At this time, the infusion tube can also be located between the two clamping blocks 37. As the infusion progresses, when the liquid in the infusion bag flows out, its gravity can decrease. Under the support of the first support spring 25, the guide block 22 can slide upward. After the infusion is completed, at this time, the guide block 22 can rise to the highest position and push the ejector rod 47, so that the ejector rod 47 drives the slide plate 42 to slide downward through the seesaw 46. The limit tooth plate 44 on the slide plate 42 can be separated from the limit tooth 45 on the support frame 33, releasing the limit on the support frame 33. At this time, under the action of the first spring 34, the two support frames 33 can slide towards each other and clamp the infusion tube through the clamping blocks 37, so that the infusion tube can be clamped to a closed state, effectively avoiding the occurrence of blood backflow after the infusion is completed, and ensuring the safety of the patient's infusion.

[0052] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is only exemplary, and is not intended to imply that the scope of the present invention is limited to these examples; under the idea of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0053] Therefore, any omission, modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An infusion stand with a quick locking function, characterized in that: It comprises a guide plate (11), an infusion sleeve (12) is fixedly mounted on the bottom surface of the guide plate (11), an adjusting rod (13) is slidably mounted on the inner wall of the infusion sleeve (12), a base (14) is fixedly mounted on the bottom end of the adjusting rod (13), and four guide wheels (15) are rotatably mounted on the inner wall of the guide plate (11); The outer wall of the base (14) is provided with four guide openings (21) distributed in an annular array, the inner wall of the guide opening (21) is slidably mounted with a guide block (22), the side of the guide block (22) is fixedly mounted with an infusion support rod (23), the outer wall of the base (14) is fixedly mounted with a limit sleeve (24) corresponding to the infusion support rod (23), a support spring (25) is fixedly mounted between the bottom surface of the guide block (22) and the inner bottom surface of the base (14), the bottom surface of the base (14) is provided with four groups of symmetrically arranged through openings (35) distributed in an annular array, the inner wall of the through opening (35) is slidably mounted with a connecting plate (36), the bottom end of the connecting plate (36) is fixedly mounted with a clamping block (37), and the inner wall of the base (14) is provided with four groups of trigger components distributed in an annular array and corresponding to the connecting plate (36); An inner cavity (51) is provided at the top end of the adjusting rod (13), a locking assembly is provided on the inner side of the inner cavity (51), and a positioning assembly corresponding to the four guide wheels (15) is provided on the inner side of the guide plate (11).

2. The infusion stand with quick locking function according to claim 1, characterized in that: The trigger assembly comprises a connecting block (31) fixedly mounted on a guide block (22) at one end of the inner side of the base (14); two fixing frames (32) are symmetrically fixedly mounted on the inner wall of the base (14); a support frame (33) is slidably mounted on the side of the fixing frame (32); a spring (34) is fixedly mounted between the side surfaces opposite to the support frame (33) and the fixing frame (32); the bottom surface of the support frame (33) is fixedly connected to the top surface of the connecting plate (36); and a limiting structure corresponding to the support frame (33) is arranged on the inner side of the base (14).

3. The infusion stand with quick locking function according to claim 2, characterized in that: The limiting structure comprises two brackets (41) symmetrically fixedly mounted on the inner wall of the base (14); a slide plate (42) is slidably mounted on the side surfaces of the two brackets (41); two springs (43) are fixedly mounted on both sides of the top surface of the slide plate (42); two limiting tooth plates (44) are fixedly mounted on the tops of the four springs (43); limiting teeth (45) corresponding to the limiting tooth plates (44) are fixedly mounted on the sides of the two support brackets (33); a seesaw (46) is hingedly mounted on the top surface of the fixed frame (32); and the bottom end of the seesaw (46) is movably connected to the side surface of the slide plate (42); a top rod (47) corresponding to the connecting block (31) is penetrated through the top surface of the fixed frame (32); a spring (48) is mounted on the top rod (47); and two ends of the spring (48) are fixedly connected to the top rod (47) and the fixed frame (32) respectively.

4. The infusion stand with quick locking function according to claim 3, characterized in that: The connecting block (31) is configured as a triangle, and the top rod (47) is movably connected to the rocker (46).

5. The infusion stand with quick locking function according to claim 1, characterized in that: The locking assembly comprises an annular groove (52) formed on the outer wall of the adjusting rod (13) and corresponding to the inner cavity (51); a fixing rod (53) is fixedly mounted on the inner bottom surface of the inner cavity (51); three transmission rods (54) arranged in an annular array are hingedly connected to the outer wall of the fixing rod (53); an adjusting screw (55) is penetrated through the top surface of the adjusting rod (13), and the adjusting screw (55) is rotatably connected to the penetration point; the adjusting screw (55) is located in the inner cavity (51). 1) The inner outer wall thread sleeve is provided with a threaded ring (56), and the outer wall of the threaded ring (56) is hinged with three driving rods (57) distributed in a circular array, and a connecting rod (58) is hinged between the transmission rod (54) and the driving rod (57) located at the same position, and a push rod (59) is fixedly installed on the side of the connecting rod (58), and the end of the push rod (59) away from the connecting rod (58) passes through the inner wall of the annular groove (52) and is fixedly installed with a locking arc plate (510).

6. The infusion stand with quick locking function according to claim 5, characterized in that: The adjusting screw (55) is provided with a torsion spring (511), and the two ends of the torsion spring (511) are respectively fixedly connected to the adjusting screw (55) and the inner cavity (51). A winding disk (512) is fixedly installed on the top of the adjusting screw (55), and a cable (513) is arranged on the inner side of the winding disk (512), and the end of the cable (513) passes through the outer wall of the infusion sleeve (12).

7. The infusion stand with quick locking function according to claim 6, characterized in that: The outer wall of the locking arc plate (510) is provided with anti-slip grooves, and the top surface of the winding disk (512) is provided with a clearance groove.

8. The infusion stand with quick locking function according to claim 7, characterized in that: The positioning assembly comprises four guide grooves (61) corresponding to the guide wheel (15) and arranged on the inner bottom surface of the guide plate (11); a friction plate (62) is slidably mounted on the inner wall of the guide groove (61); a second support spring (63) is fixedly mounted between the inner wall of the guide groove (61) and the friction plate (62); a connecting telescopic rod (64) is penetrated through the bottom surface of the guide plate (11); a cross leaf (65) corresponding to the friction plate (62) is fixedly mounted on the top of the connecting telescopic rod (64); a second torsion spring (66) is sleeved on the outer wall of the connecting telescopic rod (64); and two ends of the second torsion spring (66) are respectively fixedly connected to the connecting telescopic rod (64) and the guide plate (11); and a connecting structure is arranged on the connecting telescopic rod (64).

9. The infusion stand with quick locking function according to claim 8, characterized in that: The connection structure comprises a one-way bearing (67) arranged on the bottom surface of the give way groove, and the outer wall of the one-way bearing (67) is fixedly connected to the inner wall of the give way groove, and the inner wall of the one-way bearing (67) is fixedly connected to the telescopic end of the connecting telescopic rod (64), and a vertical plate (68) is fixedly installed on the bottom surface of the guide plate (11), and an extrusion arc plate (69) corresponding to the connecting telescopic rod (64) is fixedly installed on the bottom end of the vertical plate (68), and a pull rope (610) is fixedly installed on the side of the vertical plate (68), and the end of the pull rope (610) passes through the outer wall of the infusion sleeve (12).

10. The infusion stand with quick locking function according to claim 9, characterized in that: The vertical plate (68) is made of elastic material, and a pull ring is fixedly installed at the bottom end of the pull rope (610).

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