Catheter discharging mechanism of puncture needle assembling machine

Abstract

The utility model relates to the technical field of medical equipment, in particular to a catheter discharging mechanism of a puncture needle assembling machine, which comprises a base and a first back plate, the first back plate is fixedly connected to the upper surface of the base, a support and a vertical plate are fixedly connected to the surface of the first back plate, a tight abutting mechanism is arranged in the support, and the vertical plate is fixedly connected to the base. And a guide mechanism is arranged on the left side of the vertical plate. The double-end stud drives two threaded blocks to move, the threaded blocks drive a supporting rod to move, the supporting rod drives a transverse plate to slide, then a sliding rod and a pressing wheel are driven to move, the pressing wheel is attached to the outer wall of the guide pipe, the double-end stud continues to be rotated, the pressing wheel does not continue to move, and the sliding rod slides in the transverse plate and stretches a spring. The spring enables the pressing wheel to be attached to the guide pipe more tightly under the elastic effect, the pressing wheel extrudes the guide pipe to the outer wall of the rotating wheel, the friction force between the guide pipe and the rotating wheel is increased, in the process that the rotating wheel drives the guide pipe to move, the guide pipe and the rotating wheel are not prone to slipping, and the stability of guide pipe discharging cannot be affected.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a catheter discharging mechanism of a puncture needle assembly machine. Background Art

[0002] The puncture needle assembly machine is a mechanical device for producing and assembling puncture needles. Industrial medical catheters need to be cut as needed before use. At this time, the medical catheters need to be delivered straight. In order to reduce bacterial infection and speed up the delivery efficiency, mechanical equipment is generally used to automatically deliver the medical catheters.

[0003] For example, patent number CN106241459A is a tube feeding device for medical catheters, comprising: a material rack, a material wheel wrapped with a medical catheter, and a driving source. The driving source drives the material wheel on the rack to transport the medical catheter, and is characterized in that the material wheel is connected to a storage mechanism that can obtain medical catheters of fixed lengths from the material wheel. The above document still has shortcomings. When in use, the medical catheter can maintain a certain tension by setting a storage mechanism and will not be entangled or knotted; a preparation mechanism is set to provide a certain driving force for the medical catheter to be taken, thereby reducing the excessive tension of the medical catheter due to gravity and the gravity of the storage wheel when the medical catheter is transported over long distances, resulting in deformation of the medical catheter. However, the friction between the rotating wheel and the catheter is limited. In the process of the rotating wheel driving the catheter to move, the catheter and the rotating wheel are prone to slippage, affecting the stability of the catheter discharge. However, when the device in the above document outputs the catheter, the output direction of the catheter is prone to deviation. Utility Model Content

[0004] The utility model aims to solve the problem of easy slippage between a catheter and a rotating wheel, and proposes a catheter discharging mechanism of a puncture needle assembly machine.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A catheter discharge mechanism of a puncture needle assembly machine is designed, including a base and a first back plate, the first back plate is fixedly connected to the upper surface of the base, a bracket and a vertical plate are fixedly connected to the surface of the first back plate, a tightening mechanism is provided inside the bracket, a guide mechanism is provided on the left side of the vertical plate, and a rotating wheel and an auxiliary wheel are rotatably connected to the surface of the first back plate through a bearing, and the rotating wheel is connected to an external power source.

[0007] Preferably, the tightening mechanism includes a double-headed stud, the outer walls of both ends of the double-headed stud are rotatably connected to the bracket through bearings, the outer wall of the double-headed stud is threadedly connected to two threaded blocks, the outer wall of the threaded block is rotatably connected to two support rods through a pin shaft, the ends of the left and right support rods are rotatably connected to the cross plate through a pin shaft, the outer wall of the cross plate is slidably connected to the bracket, the interior of the cross plate is slidably connected to a sliding rod, the outer wall of the sliding rod is sleeved with a spring, the two ends of the spring are respectively fixedly connected to the sliding rod and the cross plate, and the end of the sliding rod is rotatably connected to a pressure wheel through a bearing.

[0008] Preferably, the guide mechanism includes a motor, the motor is fixed to the outer wall of the vertical plate, the output shaft of the motor is fixed with a first gear, the first gear is meshed with the second gear, the second gear and the first gear are rotatably connected to the vertical plate through bearings, a slide groove arranged in the second gear is slidably connected to the outer wall of the pin rod, the pin rod is fixed to the surface of the connecting rod, the outer wall of the connecting rod is slidably connected to the vertical plate, and the end of the connecting rod is rotatably connected to a roller through a bearing.

[0009] Preferably, a second back plate is fixedly connected to the upper surface of the base, and the surface of the second back plate is rotatably connected to two material trays via a bearing.

[0010] Preferably, the material tray is connected to an external power source, and a conduit is wound around the outer wall of the material tray.

[0011] The utility model proposes a catheter discharging mechanism of a puncture needle assembly machine, the beneficial effect of which is that: through the cooperation between the stud, threaded block, support rod, cross plate, slide rod, spring and pressure, the stud drives the two threaded blocks to move, the threaded block drives the support rod to move, the support rod drives the cross plate to slide, and then drives the slide rod and the pressure wheel to move, the pressure wheel fits with the outer wall of the catheter, and continues to rotate the stud, the pressure wheel no longer moves, the slide rod slides inside the cross plate and stretches the spring, and the spring makes the pressure wheel and the catheter fit more closely under the elastic action, and the pressure wheel squeezes the catheter against the outer wall of the rotating wheel, thereby increasing the friction between the catheter and the rotating wheel. In the process of the rotating wheel driving the catheter to move, it is not easy for the catheter and the rotating wheel to slip, and the stability of the catheter discharging will not be affected.

[0012] Through the cooperation between the motor, the first gear, the second gear, the pin rod, the connecting rod and the roller, the motor is started, the motor drives the first gear to rotate, the first gear drives the second gear to move, the second gear drives the pin rod to move through the internal sliding groove, the pin rod drives the connecting rod to slide, the connecting rod drives the roller to move, the roller fits with the outer wall of the catheter, the motor is turned off, and multiple rollers limit the output direction of the catheter. When the catheter is output, the output direction of the catheter is not easily deviated. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1It is a structural diagram of the utility model;

[0014] Figure 2 This is a structural sectional view of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the connection between the stud, threaded block and support rod in the present invention;

[0016] Figure 4 This is a schematic structural diagram of the connection between the motor, the vertical plate and the first gear in the present invention;

[0017] Figure 5 This is a schematic structural diagram of the connection between the second gear, the pin and the roller in the present invention;

[0018] Figure 6 This is a schematic structural diagram of the connection between the second back plate, the material tray and the conduit in the present invention.

[0019] In the figure: 1. base, 2. first back plate, 3. tightening mechanism, 301. stud, 302. threaded block, 303. support rod, 304. horizontal plate, 305. slide rod, 306. spring, 307. pressure wheel, 4. guide mechanism, 401. motor, 402. first gear, 403. second gear, 404. pin, 405. connecting rod, 406. roller, 5. bracket, 6. vertical plate, 7. rotating wheel, 8. auxiliary wheel, 9. second back plate, 10. material tray, 11. conduit. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] Refer to the attached Figure 1-6 In this embodiment, a catheter discharge mechanism of a puncture needle assembly machine includes a base 1 and a first back plate 2. The first back plate 2 is fixedly connected to the upper surface of the base 1. A bracket 5 and a vertical plate 6 are fixedly connected to the surface of the first back plate 2. A tightening mechanism 3 is provided inside the bracket 5. The tightening mechanism 3 increases the friction between the catheter 11 and the rotating wheel 7. A guide mechanism 4 is provided on the left side of the vertical plate 6. The guide mechanism 4 prevents the catheter 11 from deviating during delivery.

[0022] The surface of the first back plate 2 is rotatably connected to a rotating wheel 7 and an auxiliary wheel 8 through bearings. There are two rotating wheels 7 and four auxiliary wheels 8. The rotating wheel 7 is connected to an external power source, which is a motor. The external power source drives the rotating wheel 7 to rotate. The upper surface of the base 1 is fixed with a second back plate 9. The surface of the second back plate 9 is rotatably connected to two material trays 10 through bearings. The material tray 10 is connected to an external power source, which is a motor. The external power source drives the material tray 10 to rotate. A conduit 11 is wrapped around the outer wall of the material tray 10, and the material tray 10 releases the conduit 11.

[0023] The tightening mechanism 3 includes a stud 301, a threaded block 302, a support rod 303, a cross plate 304, a sliding rod 305, a spring 306 and a pressure 307. The outer walls of both ends of the stud 301 are rotatably connected to the bracket 5 through bearings. The outer wall of the stud 301 is threadedly connected to two threaded blocks 302. The stud 301 drives the two threaded blocks 302 to move. The outer walls of the threaded blocks 302 are rotatably connected to two support rods 303 through a pin. The threaded blocks 302 drive the corresponding two support rods 303 to move. The ends of the left and right support rods 303 are rotatably connected to the cross plate 304 through a pin. The left and right support rods 303 drive the cross plate 304 to slide.

[0024] The outer wall of the cross plate 304 is slidably connected to the bracket 5, and the interior of the cross plate 304 is slidably connected to a slide rod 305, which slides inside the cross plate 304. The outer wall of the slide rod 305 is sleeved with a spring 306. The model of the spring 306 is selected according to actual use requirements to meet work needs. The two ends of the spring 306 are respectively fixedly connected to the slide rod 305 and the cross plate 304. The spring 306 can drive the slide rod 305 to slide under the action of elasticity. The end of the slide rod 305 is rotatably connected to a pressure wheel 307 through a bearing, and the slide rod 305 drives the pressure wheel 307 to move;

[0025] The stud 301 drives the two threaded blocks 302 to move, and the threaded block 302 drives the support rod 303 to move, and the support rod 303 drives the cross plate 304 to slide, thereby driving the sliding rod 305 and the pressure wheel 307 to move, and the pressure wheel 307 fits the outer wall of the conduit 11 and continues to rotate the stud 301, and the pressure wheel 307 stops moving. The sliding rod 305 slides inside the cross plate 304 and stretches the spring 306 (the spring 306 stops rotating when it stretches a short distance). Under the elastic action of the spring 306, the pressure wheel 307 fits the conduit 11 more closely, and the pressure wheel 307 squeezes the conduit 11 against the outer wall of the runner 7, increasing the friction between the conduit 11 and the runner 7. In the process of driving the conduit 11 to move, the conduit 11 and the runner 7 are not prone to slippage, which will not affect the stability of the conduit 11 discharging.

[0026] The guide mechanism 4 includes a motor 401, a first gear 402, a second gear 403, a pin 404, a connecting rod 405, and a roller 406. The motor 401 is fixed to the outer wall of the vertical plate 6. The output shaft of the motor 401 is fixed to the first gear 402. The motor 401 drives the first gear 402 to rotate. The first gear 402 is meshed with the second gear 403, and the first gear 402 drives the second gear 403 to rotate.

[0027] The second gear 403 and the first gear 402 are both rotatably connected to the vertical plate 6 through bearings. The sliding groove provided in the second gear 403 is slidably connected to the outer wall of the pin rod 404. The second rack 403 drives the pin rod 404 to move through the internal sliding groove. The pin rod 404 is fixed to the surface of the connecting rod 405. The pin rod 404 drives the connecting rod 405 to slide. The outer wall of the connecting rod 405 is slidably connected to the vertical plate 6. The end of the connecting rod 405 is rotatably connected to the roller 406 through a bearing. The connecting rod 405 drives the roller 406 to move.

[0028] Start the motor 401, the motor 401 drives the first gear 402 to rotate, the first gear 402 drives the second gear 403 to move, the second gear 403 drives the pin 404 to move through the internal sliding groove, the pin 404 drives the connecting rod 405 to slide, the connecting rod 405 drives the roller 406 to move, the roller 406 fits against the outer wall of the catheter 11, and the motor 401 is turned off. The multiple rollers 406 limit the output direction of the catheter 11. When the catheter 11 is output, the output direction of the catheter 11 is not easily offset.

[0029] Working principle:

[0030] When the catheter unloading mechanism of the puncture needle assembly machine is used to unload the catheter of the puncture needle assembly machine, the catheter 11 wrapped around the outer wall of the material tray 10 is pulled out, and the catheter 11 passes between the two auxiliary wheels 8, passes through the outer wall of the rotating wheel 7, and finally passes through the through hole provided inside the vertical plate 6;

[0031] The stage when the pressure wheel presses against the catheter tightly:

[0032] The stud 301 is rotated, and the stud 301 drives the two threaded blocks 302 to move. The threaded blocks 302 drive the support rod 303 to move. The support rod 303 drives the cross plate 304 to slide, thereby driving the slide rod 305 and the pressure wheel 307 to move. The pressure wheel 307 fits the outer wall of the conduit 11. The stud 301 is rotated further, and the pressure wheel 307 stops moving. The slide rod 305 slides inside the cross plate 304 and stretches the spring 306 (the spring 306 stops rotating when it stretches a short distance). Under the elastic action of the spring 306, the pressure wheel 307 fits the conduit 11 more tightly.

[0033] Roller position adjustment stage:

[0034] Start the motor 401, which drives the first gear 402 to rotate. The first gear 402 drives the second gear 403 to move. The second gear 403 drives the pin 404 to move via the internal sliding groove. The pin 404 drives the connecting rod 405 to slide. The connecting rod 405 drives the roller 406 to move. The roller 406 contacts the outer wall of the conduit 11, and the motor 401 is turned off.

[0035] Catheter discharge stage:

[0036] The rotation of the material tray 10 and the rotating wheel 7 is controlled by an external power source. The material tray 10 releases the conduit 11. The auxiliary wheel 8 plays an auxiliary supporting role in the movement of the conduit 11. The rotating wheel 7 rotates to transport the conduit 11. The pressure wheel 307 squeezes the conduit 11 against the outer wall of the rotating wheel 7, increasing the friction between the conduit 11 and the rotating wheel 7. In the process of the rotating wheel 7 driving the conduit 11 to move, the conduit 11 and the rotating wheel 7 are not prone to slippage, which will not affect the stability of the conduit 11 discharging. Multiple rollers 406 limit the output direction of the conduit 11. When the conduit 11 is output, the output direction of the conduit 11 is not prone to deviation.

[0037] While the present invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A catheter discharge mechanism for a puncture needle assembly machine, comprising a base (1) and a first back plate (2), wherein the first back plate (2) is fixedly connected to the upper surface of the base (1), characterized in that: The surface of the first back plate (2) is fixedly connected to a bracket (5) and a vertical plate (6); a tightening mechanism (3) is provided inside the bracket (5); a guide mechanism (4) is provided on the left side of the vertical plate (6); a rotating wheel (7) and an auxiliary wheel (8) are rotatably connected to the surface of the first back plate (2) via a bearing; the rotating wheel (7) is connected to an external power source.

2. The catheter discharge mechanism of the puncture needle assembly machine according to claim 1, characterized in that: The tightening mechanism (3) comprises a stud (301), the outer walls of both ends of the stud (301) are rotatably connected to the bracket (5) through bearings, the outer wall of the stud (301) is threadedly connected to two threaded blocks (302), the outer wall of the threaded block (302) is rotatably connected to two support rods (303) through a pin, the ends of the left and right support rods (303) are rotatably connected to the cross plate (304) through a pin, the outer wall of the cross plate (304) is slidably connected to the bracket (5), the interior of the cross plate (304) is slidably connected to a slide rod (305), the outer wall of the slide rod (305) is sleeved with a spring (306), the two ends of the spring (306) are fixedly connected to the slide rod (305) and the cross plate (304) respectively, and the end of the slide rod (305) is rotatably connected to a pressure wheel (307) through a bearing.

3. The catheter discharge mechanism of the puncture needle assembly machine according to claim 1, characterized in that: The guide mechanism (4) includes a motor (401), the motor (401) is fixed to the outer wall of the vertical plate (6), the output shaft of the motor (401) is fixed to a first gear (402), the first gear (402) is meshed and connected with a second gear (403), the second gear (403) and the first gear (402) are both rotatably connected to the vertical plate (6) through bearings, a sliding groove provided in the second gear (403) is slidably connected to the outer wall of a pin rod (404), the pin rod (404) is fixed to the surface of a connecting rod (405), the outer wall of the connecting rod (405) is slidably connected to the vertical plate (6), and the end of the connecting rod (405) is rotatably connected to a roller (406) through a bearing.

4. The catheter discharge mechanism of the puncture needle assembly machine according to claim 1, characterized in that: A second back plate (9) is fixedly connected to the upper surface of the base (1), and the surface of the second back plate (9) is rotatably connected to two material trays (10) via bearings.

5. The catheter discharge mechanism of the puncture needle assembly machine according to claim 4, characterized in that: The material tray (10) is connected to an external power source, and a conduit (11) is wound around the outer wall of the material tray (10).

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