Converter assembly capable of quickly disassembling and assembling needle head

Abstract

The invention discloses a converter assembly capable of quickly disassembling and assembling a needle, and relates to the technical field of medical instruments, the converter assembly comprises a shell body and further comprises a needle cylinder, the top of the shell body is in threaded connection with a threaded cover, the needle cylinder is inserted into the threaded cover in a penetrating mode and extends into the shell body, and the bottom end of the needle cylinder is communicated with a threaded head; the protection mechanism comprises a first protection ring, the outer surface of the needle cylinder is in threaded connection with a threaded sleeve, the first protection ring is coaxially and slidably connected to the outer side of the threaded sleeve, and the top end of the first protection ring extends to the outer surface of the needle cylinder. By arranging the dismounting mechanism, the screw needle head can be taken out from the needle sleeve and quickly mounted on the needle cylinder, and the screw needle head on the needle cylinder can be quickly dismounted and clamped into the needle sleeve, so that the screw needle head can be automatically and quickly dismounted, and a user does not need to manually take down the needle sleeve; and the needle sleeve can be clamped with the screw needle again when the screw needle is detached, so that a user is not easy to be punctured when the screw needle is subsequently treated.

Description

Technical Field

[0001] The invention relates to the technical field of medical appliances, in particular to a converter assembly for quickly disassembling and assembling a needle. Background Art

[0002] A syringe is a common medical device, including a syringe, a piston push rod, a needle, and a needle cover that covers the needle. When in use, the needle cover is removed, and the piston push rod is pushed to inject the gas or liquid in the syringe through the needle. During use, when installing the needle into the syringe and removing the needle from the syringe, medical staff are easily stabbed by the needle, and medical staff need to manually perform the disassembly and assembly work, which increases the workload and reduces work efficiency.

[0003] In the prior art, a driving mechanism drives a gear to rotate, so that the rotating block drives the fixing mechanism to rotate, thereby allowing the fixing mechanism to drive the needle to rotate and remove the needle from the syringe. In this way, the removed needle is not re-engaged and wrapped by the needle cover, and the sharp part is still exposed. There is still a safety hazard in the subsequent collection and sorting, and it is impossible to remove the needle from the needle cover and install it on the syringe. Medical staff still need to perform manual installation operations, which increases the workload and reduces work efficiency. The syringe and the needle are connected by a connector, which lacks the protective effect of the needle during work, and increases the possibility of medical staff being stabbed when using the needle. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that it is impossible to remove the needle from the needle sleeve and install it on the syringe, and medical staff still need to perform manual installation operations, which increases the workload and reduces work efficiency. A converter assembly for quickly disassembling and assembling the needle is proposed.

[0005] In order to achieve the above-mentioned object, the present invention adopts the following technical solution: a converter assembly for quickly disassembling a needle, comprising a housing shell, and also comprising: A syringe, wherein the top of the outer shell is threadedly connected with a threaded cover, the syringe is inserted through the threaded cover and extends into the outer shell, and the bottom of the syringe is connected with a threaded head; The protection mechanism comprises a first protection ring, the outer surface of the syringe is threadedly connected to a threaded sleeve, the first protection ring is coaxially slidably connected to the outer side of the threaded sleeve, and the top end extends toward the outer surface of the syringe, and the inner side of the first protection ring is coaxially slidably connected to a sliding ring; The disassembly and assembly mechanism comprises a driving assembly, which is connected to the bottom of the outer shell body, and a plurality of retractable bearing assemblies are connected to the output end of the driving assembly, on which a needle assembly is placed, and the needle assembly comprises a screw-on needle and a needle sleeve clamped on the outside of the screw-on needle, the threaded head is located directly above a screw-on needle, and is threadably connected and cooperated with the screw-on needle after the screw-on needle moves upward, and a rotating and retractable assembly is connected to the bottom of the outer shell body, and a clamping portion is connected to the output end of the rotating and retractable assembly, and is used to drive the clamping portion to move and rotate, and the clamping portion is used to clamp the bottom of the needle sleeve.

[0006] In the above-mentioned converter assembly for quick disassembly of needles, a protrusion is fixedly connected to the upper end of the threaded cover, and is fixedly connected to a positioning arc plate through a support rod, and an embedding hole is penetrated and opened for the syringe to pass through. The positioning arc plate abuts against the outer peripheral side of the syringe and is coaxially arranged with the embedding hole, and the inner side of the embedding hole is slidably fitted with the outer surface of the first protective ring.

[0007] In the above-mentioned converter assembly for quick disassembly of needles, the protective mechanism also includes a magnetic fixing assembly, which includes: a first magnetic ring fixedly connected to the threaded sleeve, a third magnetic ring fixedly connected to the top of the sliding ring, a second magnetic ring fixedly connected to the bottom of the first protective ring and a fourth magnetic ring fixedly connected to the top of the first protective ring, when the first protective ring and the sliding ring are in the initial state, the fourth magnetic ring is opposite to the first magnetic ring in terms of opposite magnetic poles, and the second magnetic ring is opposite to the third magnetic ring in terms of opposite magnetic poles.

[0008] In the above-mentioned converter assembly for quick disassembly and assembly of needles, the driving assembly includes a first motor, which is installed at the bottom of the outer shell shell, and the output end of the first motor is fixedly connected to a cross plate, the outer peripheral side of the cross plate is fixedly connected to a first fixing ring, the outer peripheral side of the first fixing ring is coaxially fixedly connected to a mounting ring, the outer peripheral side of the mounting ring is coaxially fixedly connected to a second fixing ring, the first fixing ring is coaxially arranged with the output end of the first motor, and a plurality of through holes are penetrated through the mounting ring, and the plurality of the bearing assemblies correspond one by one to the plurality of through holes, and are connected on the opposite side of the first fixing ring and the second fixing ring near the bottom of the corresponding through holes, and the plurality of the through holes are distributed in a circular array.

[0009] In the above-mentioned converter assembly for quick-detachable needles, the first protective ring and the sliding ring partially overlap with the first fixing ring and the second fixing ring in the axial projection direction.

[0010] In the above-mentioned converter assembly for quick disassembly of needles, a plurality of support rods are fixedly connected to the bottom of the cross plate, and balls are connected to the ball heads at the lower ends of the support rods, and the bottoms of the balls are in rolling contact with the bottom of the outer shell.

[0011] In the above-mentioned converter assembly for quick disassembly and assembly of needles, the bearing assembly includes two bearing structures, and the two bearing structures are correspondingly connected to the first fixing ring and the second fixing ring, and the bearing structure includes a fixing plate and an inclined plate, and the fixing plate and the inclined plate are both fixedly connected to the inner walls of the corresponding fixing rings, and the inclined plate is located above the fixing plate, and the top end is inclined to point to the through hole, and a fourth electric telescopic rod is installed on the fixing plate, and a sliding block is fixedly connected to the output end of the fourth electric telescopic rod, and the sliding block is slidably connected to the bottom of the inclined plate through a T-shaped slider, and a spring is fixedly connected between the sliding block and the fixing plate, and two support shafts are fixedly connected to one end of the sliding block close to the through hole, and the four support shafts in the two bearing structures are all against the bottom of the screw-mouth needle.

[0012] In the above-mentioned converter assembly for quick disassembly and assembly of needles, the rotating and telescopic assembly includes a second motor, a second electric telescopic rod is coaxially mounted on the output end of the second motor, the output end of the second electric telescopic rod is coaxially fixedly connected to a rotating disk, the clamping portion is coaxially mounted on the rotating disk, two third electric telescopic rods are mounted on the rotating disk, and when the two output ends of the third electric telescopic rods are extended, they extend into between two support shafts in two bearing structures in a one-to-one manner, and cooperate with the coaxial clearance on the outer peripheral side of the screw-mouth needle, two transmission plates are fixedly connected to the outer side of the screw-mouth needle, and when the output end of the second motor rotates, the two output ends of the third electric telescopic rods correspondingly shift the two transmission plates to rotate the screw-mouth needle, and after the output end of the fourth electric telescopic rod contracts, the sliding block and the support shaft are separated from the rotation range of the output end of the second electric telescopic rod.

[0013] In the above-mentioned converter assembly for quick disassembly and assembly of needles, it also includes a material receiving assembly, which includes a guide cylinder, which is fixedly connected to the bottom of the outer shell body and is located directly below a through hole. A clearance groove for the needle sleeve to move through is provided on the guide cylinder, and the interior of the guide cylinder is coaxially clearance-matched with the screw-mouth needle and the needle sleeve. A sharp tool box with a top opening is threadedly connected to the bottom of the outer shell body, and the bottom end of the guide cylinder penetrates the outer shell body and is connected to the inside of the sharp tool box. A first electric telescopic rod is installed at the bottom of the outer shell body, and a connecting plate is fixedly connected to the output end of the first electric telescopic rod. The connecting plate extends into the top of the guide cylinder away from one end of the first electric telescopic rod, and an extrusion block is fixedly connected to the bottom. When the output end of the first electric telescopic rod contracts, the extrusion block squeezes the top of the screw-mouth needle.

[0014] In the above-mentioned converter assembly for quick disassembly and assembly of needles, the first motor is a dual-axis motor, the top output end of the first motor is fixedly connected to the cross plate, the bottom output end of the first motor passes through the bottom of the outer shell body, and is coaxially fixedly connected with a rotating shaft, a plurality of partitions are fixedly connected to the outside of the rotating shaft, and the plurality of partitions are abutted against the inner wall of the sharp tool box at one end away from the rotating shaft, and divide the sharp tool box into a plurality of compartments, and the number of the plurality of compartments is half the number of the plurality of through holes.

[0015] Compared with the prior art, the advantages of the present invention are: 1. The present invention provides a disassembly and assembly mechanism, so that the screw-on needle can be taken out of the needle cover and quickly installed on the syringe, and the screw-on needle on the syringe can be quickly disassembled and snapped into the needle cover, thereby realizing automatic and quick disassembly of the screw-on needle without the need for the user to manually remove the needle cover. Moreover, the needle cover can be snapped onto the screw-on needle again after disassembling the screw-on needle, so that the user is not easily stabbed when handling the screw-on needle later.

[0016] 2. The present invention provides a protective mechanism. When the screw-on needle is installed on the syringe and the syringe is used, the first protective ring and the sliding ring fall under their own weight, and the fallen first protective ring and the sliding ring are fixed by multiple sets of magnetic rings. This makes it convenient to surround and protect the screw-on needle through the sliding ring when the syringe is used, effectively reducing the possibility of the user being stabbed when dispensing medicine.

[0017] 3. The present invention sets a material receiving assembly. When the first motor provides power for the disassembly and assembly mechanism, the rotating shaft drives multiple partitions to rotate, so that the screw-on needles and needle sleeves can fall into different compartments, avoiding the accumulation of screw-on needles in the same position and affecting their use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a converter assembly for quickly disassembling and assembling a needle proposed by the present invention; Figure 2 This is a cross-sectional view of the overall structure of a converter assembly for quickly disassembling and assembling a needle proposed by the present invention; Figure 3 This is a schematic diagram of the structure of a receiving assembly of a converter assembly for quick disassembly of a needle proposed by the present invention; Figure 4 A schematic diagram of the structure of a housing shell and a threaded cover of a converter assembly for quick disassembly of a needle proposed by the present invention; Figure 5 This is a schematic diagram of the coordination of a syringe, a protection mechanism and a disassembly mechanism of a converter assembly for quickly disassembling a needle proposed by the present invention; Figure 6 This is a schematic diagram of the structure of a drive assembly of a converter assembly for quickly disassembling and assembling a needle proposed by the present invention; Figure 7 A cross-sectional view of the syringe structure of a converter assembly for quickly disassembling and assembling a needle proposed by the present invention; Figure 8 A converter assembly for quickly disassembling and assembling a needle proposed by the present invention Figure 7 A magnified detail in the middle; Fig. 9 A schematic diagram of the cooperation between a driving assembly and a disassembly mechanism of a converter assembly for quickly disassembling a needle proposed by the present invention; Fig.10 A schematic diagram of the coordination of a disassembly mechanism and a bearing assembly of a converter assembly for quickly disassembling a needle proposed by the present invention; Fig.11 A converter assembly for quickly disassembling and assembling a needle proposed by the present invention Fig.10 A magnified view of the detail at B in the middle; Fig.12 This is a schematic diagram of the other structural parts of the material receiving assembly of the converter assembly for quick disassembly of the needle proposed by the present invention.

[0019] In the figure: 1, sharps box; 2, outer shell; 3, threaded cover; 4, syringe; 5, positioning arc plate; 6, guide cylinder; 7, first motor; 8, cross plate; 9, support rod; 10, rotating shaft; 11, partition; 12, embedding hole; 13, first fixing ring; 14, second fixing ring; 15, mounting ring; 16, first electric telescopic rod; 17, connecting plate; 18, extrusion block; 19, first protective ring; 20, screw needle; 21, through hole; 22, screw Threaded sleeve; 23. first magnetic ring; 24. second magnetic ring; 25. sliding ring; 26. third magnetic ring; 27. fourth magnetic ring; 28. threaded head; 29. ​​second motor; 30. second electric telescopic rod; 31. rotating disk; 32. clamping part; 33. third electric telescopic rod; 34. transmission plate; 35. needle sleeve; 36. fixed plate; 37. inclined plate; 38. sliding block; 39. supporting shaft; 40. fourth electric telescopic rod; 41. spring; 42. clearance groove. DETAILED DESCRIPTION

[0020] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0021] Reference Figure 1-9 , a converter assembly for quickly disassembling a needle, comprising a housing shell 2, and further comprising: The syringe 4 is threadedly connected with a threaded cover 3 on the top of the outer shell 2. The syringe 4 is inserted through the threaded cover 3 and extends into the outer shell 2. The bottom end of the syringe 4 is connected with a threaded head 28.

[0022] A protrusion is fixedly connected to the upper end of the threaded cover 3, and is fixedly connected to the positioning arc plate 5 through a support rod, and an embedding hole 12 is opened through it for the syringe 4 to pass through. The positioning arc plate 5 abuts against the outer peripheral side of the syringe 4 and is coaxially arranged with the embedding hole 12. The inner side of the embedding hole 12 is in close and sliding fit with the outer surface of the first protective ring 19.

[0023] The protection mechanism includes a first protection ring 19, the outer surface of the syringe 4 is threadedly connected to the threaded sleeve 22, the first protection ring 19 is coaxially slidably connected to the outside of the threaded sleeve 22, and the top end extends toward the outer surface of the syringe 4, and the inner side of the first protection ring 19 is coaxially slidably connected to a sliding ring 25.

[0024] The protective mechanism also includes a magnetic fixing component, which includes: a first magnetic ring 23 fixedly connected to the threaded sleeve 22, a third magnetic ring 26 fixedly connected to the top of the sliding ring 25, a second magnetic ring 24 fixedly connected to the bottom of the first protective ring 19 and a fourth magnetic ring 27 fixedly connected to the top of the first protective ring 19. When the first protective ring 19 and the sliding ring 25 are in the initial state, the fourth magnetic ring 27 and the first magnetic ring 23 have opposite magnetic poles, and the second magnetic ring 24 and the third magnetic ring 26 have opposite magnetic poles.

[0025] The disassembly and assembly mechanism includes a driving assembly, which is connected to the bottom of the outer shell body 2. A plurality of retractable bearing assemblies are connected to the output end of the driving assembly. A needle assembly is placed on the bearing assembly. The needle assembly includes a screw-on needle 20 and a needle sleeve 35 clamped on the outside of the screw-on needle 20. The threaded head 28 is located directly above a screw-on needle 20, and is threadedly connected and cooperated with the screw-on needle 20 after the screw-on needle 20 moves upward. A rotating and retractable assembly is connected to the bottom of the outer shell body 2. A clamping portion 32 is connected to the output end of the rotating and retractable assembly, and is used to drive the clamping portion 32 to move and rotate. The clamping portion 32 is used to clamp the bottom of the needle sleeve 35.

[0026] The driving assembly includes a first motor 7, which is installed at the bottom of the outer shell 2. A cross plate 8 is fixedly connected to the output end of the first motor 7, and a first fixing ring 13 is fixedly connected to the outer peripheral side of the cross plate 8. A mounting ring 15 is coaxially fixedly connected to the outer peripheral side of the first fixing ring 13, and a second fixing ring 14 is coaxially fixedly connected to the outer peripheral side of the mounting ring 15. The first fixing ring 13 is coaxially arranged with the output end of the first motor 7, and a plurality of through holes 21 are penetrated on the mounting ring 15. A plurality of bearing assemblies correspond to the plurality of through holes 21 one by one, and are connected on the opposite side of the first fixing ring 13 and the second fixing ring 14 near the bottom of the corresponding through holes 21, and the plurality of through holes 21 are distributed in a circular array.

[0027] The first protection ring 19 and the sliding ring 25 partially overlap with the first fixing ring 13 and the second fixing ring 14 in the axial projection direction.

[0028] A plurality of support rods 9 are fixedly connected to the bottom of the cross plate 8 , and balls are connected to the ball heads at the lower ends of the support rods 9 , and the bottoms of the balls are in rolling contact with the bottom of the outer shell 2 .

[0029] The bearing assembly includes two bearing structures, which are correspondingly connected to the first fixing ring 13 and the second fixing ring 14. The bearing structure includes a fixing plate 36 and an inclined plate 37. The fixing plate 36 and the inclined plate 37 are both fixedly connected to the inner walls of the corresponding fixing rings. The inclined plate 37 is located above the fixing plate 36, and the top end is inclined to point to the through hole 21. A fourth electric telescopic rod 40 is installed on the fixing plate 36. A sliding block 38 is fixedly connected to the output end of the fourth electric telescopic rod 40. The sliding block 38 is slidably connected to the bottom of the inclined plate 37 through a T-shaped slider. A spring 41 is fixedly connected between the sliding block 38 and the fixing plate 36. Two support shafts 39 are fixedly connected to one end of the sliding block 38 close to the through hole 21. The four support shafts 39 in the two bearing structures are all against the bottom of the screw needle 20.

[0030] The rotating telescopic assembly includes a second motor 29, a second electric telescopic rod 30 is coaxially mounted on the output end of the second motor 29, a rotating disk 31 is coaxially fixedly connected to the output end of the second electric telescopic rod 30, a clamping portion 32 is coaxially mounted on the rotating disk 31, and two third electric telescopic rods 33 are mounted on the rotating disk 31. When the output ends of the two third electric telescopic rods 33 are extended, they extend one-to-one into between two support shafts 39 in the two bearing structures, and are coaxially gap-matched with the outer peripheral side of the screw-mouth needle head 20. Two transmission plates 34 are fixedly connected to the outer side of the screw-mouth needle head 20. When the output end of the second motor 29 rotates, the output ends of the two third electric telescopic rods 33 correspondingly shift the two transmission plates 34 to rotate the screw-mouth needle head 20. After the output end of the fourth electric telescopic rod 40 contracts, the sliding block 38 and the support shaft 39 are out of the rotation range of the output end of the third electric telescopic rod 33.

[0031] The material receiving assembly also includes a guide cylinder 6, which is fixedly connected to the bottom of the outer shell body 2 and is located directly below a through hole 21. A clearance groove 42 is provided on the guide cylinder 6 for the needle sleeve 35 to move through. The interior of the guide cylinder 6 is coaxially clearance-matched with the screw-mouth needle 20 and the needle sleeve 35. A sharp tool box 1 with an open top is threadedly connected to the bottom of the outer shell body 2. The bottom end of the guide cylinder 6 passes through the outer shell body 2 and is connected to the inside of the sharp tool box 1. A first electric telescopic rod 16 is installed at the bottom of the outer shell body 2. A connecting plate 17 is fixedly connected to the output end of the first electric telescopic rod 16. The connecting plate 17 extends into the top of the guide cylinder 6 away from one end of the first electric telescopic rod 16, and a squeezing block 18 is fixedly connected to the bottom. The squeezing block 18 squeezes the top of the screw-mouth needle 20 when the output end of the first electric telescopic rod 16 contracts.

[0032] The first motor 7 is a dual-axis motor, the top output end of the first motor 7 is fixedly connected to the cross plate 8, the bottom output end of the first motor 7 passes through the bottom of the outer shell 2, and is coaxially fixedly connected with a rotating shaft 10, a plurality of partitions 11 are fixedly connected to the outside of the rotating shaft 10, the plurality of partitions 11 are against the inner wall of the sharp tool box 1 away from one end of the rotating shaft 10, and divide the sharp tool box 1 into a plurality of compartments, the number of the plurality of compartments is half the number of the plurality of through holes 21.

[0033] In the present invention, when working, the pushing protrusion can drive the threaded cover 3 to rotate, so that the threaded cover 3 can be separated from the outer shell 2, and the needle assemblies can be inserted into the through holes 21 one by one. The needle assemblies can be supported by the symmetrically arranged support shafts 39, and then the threaded cover 3 is threadedly connected to the outer shell 2, so that the needle assembly can be installed before use; The threaded sleeve 22 is threadedly connected to the outer surface of the syringe 4 for easy disassembly and assembly; When the needle needs to be installed, take the syringe 4 and fit the syringe 4 with the positioning arc plate 5. The syringe 4 can be positioned by the positioning arc plate 5. After fitting the syringe 4 with the positioning arc plate 5, move downward so that the syringe 4 is embedded in the housing shell 2 from the embedding hole 12. The outer surface of the first protective ring 19 fits with the inner side of the embedding hole 12. The positioning arc plate 5 is provided to facilitate the alignment of the first protective ring 19 with the embedding hole 12. When the syringe 4 moves downward, the first fixing ring 13 and the second fixing ring 14 will block and squeeze the sliding ring 25 and the first protective ring 19 until the third magnetic ring 26 contacts the threaded sleeve 22. At this time, the syringe 4 cannot move downward any further, and the thread head 28 is located above a group of through holes 21, and the lower end of the thread head 28 is in the same plane as the upper end of a group of screw-mouth needle heads 20. Then, the output end of the second electric telescopic rod 30 is extended for a distance, driving the rotating disk 31 to move upward, so that the lower end of the needle sleeve 35 is embedded in the upper end of the rotating disk 31, and the clamping part 32 clamps and fixes the lower end of the needle sleeve 35; Then, the needle sleeve 35 and the screw-on needle head 20 are pushed upward by rotating the disk 31, so that the thread head 28 is embedded in the screw-on needle head 20; Then, the fourth electric telescopic rods 40 of the two groups are retracted, overcoming the elastic force of the spring 41, and pulling the sliding block 38 to slide downward along the inclined plate 37, so that the positions of the sliding block 38 and the third electric telescopic rod 33 are no longer staggered, and at this time, the support shaft 39 no longer supports the screw-mouth needle 20; Then, the second motor 29 drives the second electric telescopic rod 30, the rotating disk 31, and the two sets of third electric telescopic rods 33 to rotate. Since the two sets of third electric telescopic rods 33 are in contact with the outer surface of the screw-type needle head 20, the two sets of third electric telescopic rods 33 can drive the screw-type needle head 20 to rotate by shifting the transmission plates 34 of the two sets when they rotate. Since the inner side of the screw-mouth needle head 20 is provided with a thread matching the outer surface of the thread head 28, the screw-mouth needle head 20 can be threadedly connected with the thread head 28 by rotating the screw-mouth needle head 20, and since the needle cover 35 is movably engaged with the screw-mouth needle head 20, when the screw-mouth needle head 20 rotates and rises, the needle cover 35 will be separated from the screw-mouth needle head 20; At this time, the user can pull out the syringe 4 equipped with the screw-on needle 20 for use. After the syringe 4 is pulled out, under the action of its own weight, the first protective ring 19 and the sliding ring 25 will slide downward. When the inner wall of the upper end of the first protective ring 19 contacts the upper surface of the threaded sleeve 22, the fourth magnetic ring 27 and the first magnetic ring 23 will be magnetically connected. After the third magnetic ring 26 slides downward to the end of the first protective ring 19, the third magnetic ring 26 will be magnetically connected to the second magnetic ring 24, so that the positions of the first protective ring 19 and the sliding ring 25 can be fixed. The first protective ring 19 and the sliding ring 25 surround the outside of the screw-on needle 20, and can shield the screw-on needle 20 during the interval of dispensing, thereby effectively reducing the possibility of the user being stabbed during the dispensing process. At the same time, the movable first protective ring 19 and the sliding ring 25 can be arranged to adapt to use in different situations. When the use of the syringe 4 is finished and the screw-on needle 20 needs to be disassembled, the output ends of the fourth electric telescopic rods 40 of the two groups are controlled to extend, and the sliding block 38 can be pushed upward by the fourth electric telescopic rod 40, and the output end of the third electric telescopic rod 33 is extended so that its output end is located inside the support shafts 39 of the two groups again, and then the above operation of embedding the syringe 4 into the shell 2 is repeated, and the positioning arc plate 5 is positioned so that the lower end of the screw-on needle 20 can be embedded in the needle sleeve 35 fixed by the clamping part 32, and then the output end of the fourth electric telescopic rod 40 is controlled to retract to avoid hindering the subsequent movement of the output end of the third electric telescopic rod 33; At this time, the third electric telescopic rods 33 of the two groups are in contact with the outer surface of the screw-mouth needle 20, and then the second motor 29 is used to make the third electric telescopic rods 33 of the two groups rotate in the opposite direction, and the screw-mouth needle 20 and the threaded head 28 can be rotated and separated through the transmission plate 34. When the separation is about to be completed, the output end of the fourth electric telescopic rod 40 is extended to facilitate receiving the screw-mouth needle 20 to be separated; The screw-mouth needle 20 separated from the threaded head 28 will be supported by the four sets of support shafts 39, so that the screw-mouth needle 20 can be disassembled, and then the syringe 4 can be pulled out of the housing shell 2; The first motor 7 works, and its output end drives the cross plate 8, the first fixing ring 13, the mounting ring 15 and the second fixing ring 14 to rotate a certain angle, so that the screw-mouth needles 20 of a group adjacent to the used screw-mouth needles 20 rotate to the bottom of the embedding hole 12, which is convenient for subsequent use; When the cross plate 8 rotates, the ball bearings of the support rod 9 provided at the lower end thereof come into contact with the inner bottom of the housing shell 2, and the ball bearings are used to reduce friction; After use, the screw-on needle 20 rotates with the output end of the first motor 7 and gradually rotates toward the guide cylinder 6. The guide cylinder 6 is provided with a clearance groove 42 for the screw-on needle 20 to pass through. When the screw-on needle 20 moves into the guide tube 6, the output end of the first electric telescopic rod 16 contracts, and the screw-on needle 20 is squeezed downward by the connecting plate 17 and the squeezing block 18, and at the same time, the output ends of the two groups of fourth electric telescopic rods 40 contract, so that the support shaft 39 no longer supports the screw-on needle 20, and the screw-on needle 20 falls along the guide tube 6 into the sharp tool box 1; When squeezing the screw-on needle 20, the connecting plate 17 is used for transmission, and the squeezing block 18 is used for squeezing the screw-on needle 20, thereby reducing the possibility of the screw-on needle 20 tilting and falling due to the movement of the support shaft 39; The screw-on needle 20 will fall into the compartment of the adjacent partition 11, and the first motor 7 works, and its output end drives the multiple partitions 11 to rotate through the rotating shaft 10 at the same time, and adjusts the compartment where the screw-on needle 20 will fall, so that the screw-on needle 20 can fall into different compartments, avoiding the screw-on needle 20 from piling up in the same position and affecting the use; After a period of use, since the sharps box 1 is threadedly connected to the outer surface of the outer shell 2, the sharps box 1 and the outer shell 2 can be disassembled to handle the screw-mouth needle 20 that is clamped by the needle cover 35 and stored inside the sharps box 1.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A quick-detachable needle converter assembly, comprising a housing shell (2), characterized in that: Also includes: A syringe (4), wherein the top of the outer shell (2) is threadedly connected to a threaded cover (3), the syringe (4) is inserted through the threaded cover (3) and extends into the outer shell (2), and the bottom end of the syringe (4) is connected to a threaded head (28); A protection mechanism, the protection mechanism comprising a first protection ring (19), the outer surface of the syringe (4) being threadedly connected to a threaded sleeve (22), the first protection ring (19) being coaxially slidably connected to the outer side of the threaded sleeve (22), and the top end of the first protection ring (19) extending toward the outer surface of the syringe (4), and the inner side of the first protection ring (19) being coaxially slidably connected to a sliding ring (25); The disassembly and assembly mechanism comprises a driving assembly, the driving assembly being connected to the inner bottom of the outer shell body (2), the output end of the driving assembly being connected to a plurality of retractable bearing assemblies, a needle assembly being placed on the bearing assembly, the needle assembly comprising a screw-on needle (20) and a needle sleeve (35) clamped on the outer side of the screw-on needle (20), the threaded head (28) being located directly above a screw-on needle (20) and being threadably connected and matched with the screw-on needle (20) after the screw-on needle (20) moves upward, the inner bottom of the outer shell body (2) being connected to a rotating and retractable assembly, the output end of the rotating and retractable assembly being connected to a clamping portion (32) and being used to drive the clamping portion (32) to move and rotate, the clamping portion (32) being used to clamp the bottom of the needle sleeve (35).

2. A quick-detachable needle converter assembly according to claim 1, characterized in that: The threaded cover (3) is fixedly connected to a protrusion at the upper end thereof, and is fixedly connected to a positioning arc plate (5) via a support rod, and is provided with an embedding hole (12) through which the syringe (4) passes. The positioning arc plate (5) abuts against the outer peripheral side of the syringe (4) and is coaxially arranged with the embedding hole (12), and the inner side of the embedding hole (12) is in close and slidable fit with the outer surface of the first protective ring (19).

3. A quick-detachable needle converter assembly according to claim 1, characterized in that: The protection mechanism also includes a magnetic fixing component, which includes: a first magnetic ring (23) fixedly connected to the threaded sleeve (22), a third magnetic ring (26) fixedly connected to the top of the sliding ring (25), a second magnetic ring (24) fixedly connected to the bottom of the first protection ring (19) and a fourth magnetic ring (27) fixedly connected to the top of the first protection ring (19), when the first protection ring (19) and the sliding ring (25) are in an initial state, the fourth magnetic ring (27) and the first magnetic ring (23) have opposite magnetic poles, and the second magnetic ring (24) and the third magnetic ring (26) have opposite magnetic poles.

4. A quick-detachable needle converter assembly according to claim 1, characterized in that: The drive assembly comprises a first motor (7), the first motor (7) being mounted on the inner bottom of the outer shell (2), the output end of the first motor (7) being fixedly connected to a cross plate (8), the outer peripheral side of the cross plate (8) being fixedly connected to a first fixing ring (13), the outer peripheral side of the first fixing ring (13) being coaxially fixedly connected to a mounting ring (15), the outer peripheral side of the mounting ring (15) being coaxially fixedly connected to a second fixing ring (14), the first fixing ring (13) being coaxially arranged with the output end of the first motor (7), the mounting ring (15) being penetrated by a plurality of through holes (21), the plurality of bearing assemblies corresponding to the plurality of through holes (21) one by one, and being connected to the first fixing ring (13) and the second fixing ring (14) on opposite sides near the bottom of the corresponding through holes (21), the plurality of through holes (21) being distributed in a circular array.

5. A quick-detachable needle converter assembly according to claim 4, characterized in that: The first protection ring (19) and the sliding ring (25) partially overlap with the first fixing ring (13) and the second fixing ring (14) in the axial projection direction.

6. A quick-detachable needle converter assembly according to claim 4, characterized in that: A plurality of support rods (9) are fixedly connected to the bottom of the cross plate (8), and a ball is connected to the ball head at the lower end of the support rod (9), and the bottom of the ball is in rolling contact with the inner bottom of the outer shell body (2).

7. A quick-detachable needle converter assembly according to claim 4, characterized in that: The bearing assembly comprises two bearing structures, the two bearing structures are connected to the first fixing ring (13) and the second fixing ring (14) respectively, the bearing structures comprise a fixing plate (36) and an inclined plate (37), the fixing plate (36) and the inclined plate (37) are both fixedly connected to the inner walls of the corresponding fixing rings, the inclined plate (37) is located above the fixing plate (36), and the top end of the inclined plate (37) is inclined to point toward the through hole (21), a fourth electric telescopic rod (40) is installed on the fixing plate (36), a sliding block (38) is fixedly connected to the output end of the fourth electric telescopic rod (40), the sliding block (38) is slidably connected to the bottom of the inclined plate (37) through a T-shaped sliding block, a spring (41) is fixedly connected between the sliding block (38) and the fixing plate (36), and two support shafts (39) are fixedly connected to one end of the sliding block (38) close to the through hole (21), and the four support shafts (39) in the two bearing structures are all against the bottom of the screw-mouth needle head (20).

8. A quick-detachable needle converter assembly according to claim 7, characterized in that: The rotating telescopic assembly comprises a second motor (29), a second electric telescopic rod (30) being coaxially mounted on an output end of the second motor (29), the output end of the second electric telescopic rod (30) being coaxially fixedly connected to a rotating disk (31), the clamping portion (32) being coaxially mounted on the rotating disk (31), two third electric telescopic rods (33) being mounted on the rotating disk (31), the output ends of the two third electric telescopic rods (33) correspondingly extending into between two support shafts (39) in two bearing structures when extended, and coaxially engaging with the outer peripheral side of the screw-mouth needle head (20) with clearance, two transmission plates (34) being fixedly connected to the outer side of the screw-mouth needle head (20), the output ends of the two third electric telescopic rods (33) correspondingly shifting the two transmission plates (34) to rotate the screw-mouth needle head (20) when the output end of the second motor (29) rotates, and the output end of the fourth electric telescopic rod (40) is retracted to cause the sliding block (38) and the support shaft (39) to leave the rotation range of the output end of the second electric telescopic rod (33).

9. A quick-detachable needle converter assembly according to claim 4, characterized in that: The invention also comprises a material receiving assembly, the material receiving assembly comprising a guide cylinder (6), the guide cylinder (6) being fixedly connected to the bottom of the outer shell (2) and being located directly below a through hole (21), the guide cylinder (6) being provided with a clearance groove (42) for the needle sleeve (35) to move through, the interior of the guide cylinder (6) being coaxially clearance-matched with the screw-on needle head (20) and the needle sleeve (35), the bottom of the outer shell (2) being threadedly connected to a sharp tool box (1) with an opening at the top, the bottom end of the guide cylinder (6) being penetrated by a through hole (21) The outer shell (2) is connected to the inside of the sharp weapon box (1), and a first electric telescopic rod (16) is installed at the bottom of the inner part of the outer shell (2). The output end of the first electric telescopic rod (16) is fixedly connected to a connecting plate (17). The connecting plate (17) extends into the upper part of the guide cylinder (6) away from one end of the first electric telescopic rod (16), and a squeezing block (18) is fixedly connected to the bottom. When the output end of the first electric telescopic rod (16) is retracted, the squeezing block (18) squeezes the top of the screw-mouth needle (20).

10. A quick-detachable needle converter assembly according to claim 9, characterized in that: The first motor (7) is a dual-axis motor. The top output end of the first motor (7) is fixedly connected to the cross plate (8). The bottom output end of the first motor (7) passes through the bottom of the outer shell body (2) and is coaxially fixedly connected to a rotating shaft (10). A plurality of partitions (11) are fixedly connected to the outer side of the rotating shaft (10). The ends of the plurality of partitions (11) away from the rotating shaft (10) abut against the inner wall of the sharp tool box (1) and divide the sharp tool box (1) into a plurality of compartments. The number of the plurality of compartments is half the number of the plurality of through holes (21).

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