Vacuumizing water cooling device of catheter extrusion production line

By forming a vacuum state in the vacuum water cooling device of the catheter extrusion production line, the interference of air heat on the cooling effect is reduced, and the problem of insufficient cross-section after cooling and shaping of the catheter is solved, and the circularity and cooling effect of the catheter are improved.

CN222875271UActive Publication Date: 2025-05-16SHAOXING JIMEI MEDICAL EQUIP CO LTD
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Patent Information

Application Number
CN202421746836.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-23
Publication Date
2025-05-16
Estimated Expiration
2034-07-23

AI Technical Summary

Technical Problem

During the process from extrusion to cooling and setting, the heat transfer of the air interferes with the cooling effect, resulting in the section of the catheter after cooling and setting is not round enough.

Method used

A vacuum water cooling device for a catheter extrusion production line is designed. By forming a vacuum state in the cooling box, the vacuum equipment is used to reduce the interference of air heat conduction on the cooling effect, and the cooling effect is ensured by flowing and circulating cooling water.

Benefits of technology

Cooling is performed under vacuum to reduce the interference of air heat on the cooling effect and ensure the roundness and cooling effect of the conduit.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222875271U_ABST
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Abstract

When the vacuumizing water cooling device is used, cooling water firstly enters a cooling box body along a water inlet pipe, and after the liquid level is consistent with the height of an overflow drain pipe, the cooling water is discharged from the overflow drain pipe, so that the cooling water in the cooling box body is in a flowing circulation state, and the cooling effect is ensured; in the process that the guide pipe is input from the inlet of the cooling box body and output from the outlet, the guide pipe can be pressed by the rotating wheels, so that the guide pipe is prevented from floating upwards; in addition, the water pan can recycle cooling water seeping from the inlet and the outlet of the cooling box body, and the cooling water is recycled into the overflow water outlet pipe through the water return pipe. Meanwhile, external vacuumizing equipment is used for exhausting air in the air exhaust pipe, so that the interior of the cooling tank body is in a vacuum state, a vacuum environment is formed in the cooling water tank, and the interference of heat conduction of air on the cooling effect is reduced; and finally, the roundness of the guide pipe is ensured through rapid cooling and shaping.
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Description

Technical Field

[0001] The utility model relates to the technical field of urinary catheter processing, in particular to a vacuum water cooling device for a urinary catheter extrusion production line. Background Art

[0002] The catheter extrusion production line can obtain the catheter of the urinary catheter through the steps of extrusion, cooling and shaping, cutting, and blanking (one end of the catheter needs to be sealed later). However, in the process from extrusion to cooling and shaping of the catheter, the heat of the air is transferred to the cooling part, which will interfere with the cooling effect, resulting in the cross section of the catheter not being round enough after cooling and shaping. Utility Model Content

[0003] The utility model aims to provide a vacuum water cooling device for a urinary catheter extrusion production line, so that the catheter can be cooled and shaped in a vacuum state to ensure the roundness of the catheter.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions: a vacuum water cooling device for a urinary catheter extrusion production line, comprising a frame, a cooling box body arranged on the frame and having an inlet and an outlet, a water inlet pipe arranged at the bottom of the cooling box body, an overflow outlet pipe arranged at the bottom of the cooling box body and extending upward into the cooling box body, a plurality of rotating wheels arranged in the cooling box body and pressed on the catheter, a plurality of observation windows arranged at the top of the cooling box body and openable, an air extraction pipe arranged at the bottom of the cooling box body and extending upward into the cooling box body, a water receiving pan arranged on the frame and receiving cooling water seeping from the inlet and outlet of the cooling box body, and a return pipe arranged between the water receiving pan and the overflow drain pipe; the height of the upper end of the air extraction pipe is higher than the height of the upper end of the overflow drain pipe, the water inlet pipe and the overflow outlet pipe are used to connect to an external circulating cooling device to realize a water circulating cooling function, and the air extraction pipe is used to connect to an external vacuum extraction device.

[0005] By adopting the above technical scheme, when in use, the cooling water first enters the cooling box along the water inlet pipe, and the cooling water is discharged from the overflow drain pipe after the liquid level is consistent with the height of the overflow drain pipe, so that the cooling water in the cooling box is in a flow circulation state, thereby ensuring the cooling effect; and in the process of the conduit being input from the inlet of the cooling box and output from the outlet, the multiple wheels can press the conduit to prevent the conduit from floating upward; in addition, the water receiving tray can recover the cooling water seeping from the inlet and outlet of the cooling box, and recover it to the overflow outlet pipe through the return pipe; at the same time, the external vacuum equipment evacuates the exhaust pipe, so that the cooling box is in a vacuum state, thereby forming a vacuum environment in the cooling water tank, reducing the interference of air heat conduction on the cooling effect; finally, the roundness of the conduit is ensured by rapid cooling and shaping.

[0006] The utility model is further configured as follows: the portion of the water inlet pipe located in the cooling box body extends horizontally along the length direction of the cooling box body, the water inlet pipe is provided with a plurality of water inlet holes arranged along its length direction, the portion of the water inlet pipe located in the cooling box body is located on one side of the bottom portion of the cooling box body, and the water inlet holes face the other side of the bottom portion of the cooling box body.

[0007] By adopting the above technical solution, the part of the water inlet pipe located in the cooling box is located on one side of the bottom of the cooling box, and the water inlet hole faces the other side of the bottom of the cooling box, so that the incoming cooling water is completely located at the bottom of the cooling box, and the cooling water that has been heated above is discharged from the overflow outlet pipe to ensure that the water temperature in the cooling box is controlled at a suitable cooling temperature.

[0008] The utility model is further configured as follows: a plurality of observation ports are provided on the top of the cooling box body, and the observation window includes a rubber sealing ring provided on the top of the cooling box body and surrounding the observation port, two rotating frames rotatably connected to the cooling box body, a tempered glass installed between the two rotating frames and used to press against the rubber sealing ring, and a fixing knob bolt provided between the rotating frame and the cooling box body and allowing the tempered glass to remain pressed against the rubber sealing ring.

[0009] By adopting the above technical solution, the observation window includes a rubber sealing ring, a rotating frame, tempered glass, and a fixing knob bolt, so that the tempered glass can be opened during the rotation of the rotating frame, thereby facilitating the operation of the catheter from the observation port, such as completing the operation of placing the catheter under multiple rotating wheels; at the same time, the setting of the observation window also facilitates the observation of the cooling condition.

[0010] The utility model is further configured as follows: a filter assembly is provided at the connection between the water receiving tray and the return pipe, and the filter assembly comprises an embedding ring embedded in the connection between the water receiving tray and the return pipe, and a filter net provided in the embedding ring.

[0011] By adopting the above technical solution, since the water receiving tray is exposed to the air, the cooling water returning from the water receiving tray to the overflow outlet pipe can be filtered by setting a filter assembly.

[0012] The utility model is further configured as follows: a V-shaped annular groove is provided on the circumferential side of the rotating wheel.

[0013] By adopting the above technical solution and providing a V-shaped annular groove, it is convenient to limit the catheter during the transmission process, and the rotating connection of the rotating wheel can prevent static friction from causing damage to the catheter. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the utility model;

[0016] Figure 3 It is a schematic structural diagram of the utility model after sectioning.

[0017] Figure numerals: 1, frame; 2, cooling box; 3, water inlet pipe; 31, water inlet hole; 4, overflow outlet pipe; 5, rotor; 51, ring groove; 6, observation window; 61, rubber sealing ring; 62, rotating frame; 63, tempered glass; 64, fixing knob bolt; 7, exhaust pipe; 8, water tray; 9, return pipe; 10, filter assembly; 101, embedded ring; 102, filter net. DETAILED DESCRIPTION

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0019] Embodiment: A vacuum water cooling device for a urinary catheter extrusion production line, such as Figures 1 to 3 As shown, it includes a frame 1, a cooling box 2 provided on the frame 1 and having an inlet and an outlet, a water inlet pipe 3 provided at the bottom of the cooling box 2, an overflow outlet pipe 4 provided at the bottom of the cooling box 2 and extending upward into the cooling box 2, a plurality of wheels 5 provided in the cooling box 2 and pressed on the conduit, a plurality of observation windows 6 provided at the top of the cooling box 2 and openable, an exhaust pipe 7 provided at the bottom of the cooling box 2 and extending upward into the cooling box 2, a water receiving pan 8 provided on the frame 1 and receiving cooling water seeping from the inlet and outlet of the cooling box 2, and a return pipe 9 provided between the water receiving pan 8 and the overflow drain pipe. The height of the upper end of the exhaust pipe 7 is higher than the height of the upper end of the overflow drain pipe, the water inlet pipe 3 and the overflow outlet pipe 4 are used to connect to an external circulating cooling device to realize a water circulating cooling function, and the exhaust pipe 7 is used to connect to an external vacuum device.

[0020] like Figure 1 and Figure 3 As shown, the portion of the water inlet pipe 3 located in the cooling box 2 extends horizontally along the length direction of the bottom of the cooling box 2, and the water inlet pipe 3 is provided with a plurality of water inlet holes 31 arranged along its length direction. The portion of the water inlet pipe 3 located in the cooling box 2 is located on one side of the bottom of the cooling box 2, and the water inlet holes 31 face the other side of the bottom of the cooling box 2.

[0021] like Figure 1 and Figure 2As shown, a plurality of observation ports (not shown in the figure) are arranged on the top of the cooling box body 2, and the observation window 6 includes a rubber sealing ring 61 arranged on the top of the cooling box body 2 and surrounding the observation port, two rotating frames 62 rotatably connected to the cooling box body 2, a tempered glass 63 installed between the two rotating frames 62 and used to press against the rubber sealing ring 61, and a fixing knob bolt 64 arranged between the rotating frame 62 and the cooling box body 2 and keeping the tempered glass 63 pressed against the rubber sealing ring.

[0022] like Figures 1 to 3 As shown, a filter assembly 10 is provided at the connection between the water receiving tray 8 and the return pipe 9. The filter assembly 10 includes an embedded ring 101 embedded at the connection between the water receiving tray 8 and the return pipe 9, and a filter net 102 provided in the embedded ring 101. At the same time, a "V"-shaped annular groove 51 is provided on the peripheral side of the runner 5.

[0023] Implementation effect: When in use, the cooling water first enters the cooling box 2 along the water inlet pipe 3, and the cooling water is discharged from the overflow drain pipe after the liquid level is consistent with the height of the overflow drain pipe, so that the cooling water in the cooling box 2 is in a flow circulation state to ensure the cooling effect; and in the process of the catheter being input from the inlet of the cooling box 2 and output from the outlet, the multiple wheels 5 can press the catheter to prevent the catheter from floating upward; in addition, the water receiving tray 8 can recover the cooling water seeping from the inlet and outlet of the cooling box 2, and recover it to the overflow outlet pipe 4 through the return pipe 9; at the same time, the external vacuum equipment evacuates the exhaust pipe 7, so that the cooling box 2 is in a vacuum state, thereby forming a vacuum environment in the cooling water tank, reducing the interference of air heat conduction on the cooling effect; finally, the roundness of the catheter is ensured by rapid cooling and shaping.

[0024] By making the part of the water inlet pipe 3 located in the cooling box 2 located on one side of the bottom of the cooling box 2, and the water inlet hole 31 facing the other side of the bottom of the cooling box 2, the incoming cooling water is completely located at the bottom of the cooling box 2, and the cooling water that has been heated above is discharged from the overflow outlet pipe 4, so as to ensure that the water temperature in the cooling box 2 is controlled at a suitable cooling temperature. The observation window 6 includes a rubber sealing ring 61, a rotating frame 62, a tempered glass 63, and a fixing knob bolt 64, so that the tempered glass 63 can be opened during the rotation of the rotating frame 62, so that it is convenient to operate the catheter from the observation port, such as completing the operation of placing the catheter under multiple wheels 5; at the same time, the setting of the observation window 6 is also convenient for observing the cooling situation. Because the water tray 8 is exposed to the air, the cooling water returned from the water tray 8 to the overflow outlet pipe 4 can be filtered by setting a filter assembly 10. By setting a V-shaped annular groove 51, it is convenient to limit the catheter during the transmission process, and the rotating connection of the wheel 5 can prevent static friction from causing damage to the catheter.

[0025] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A vacuum water cooling device for a urinary catheter extrusion production line, characterized in that: The invention comprises a frame (1), a cooling box (2) arranged on the frame (1) and having an inlet and an outlet, a water inlet pipe (3) arranged at the bottom of the cooling box (2), an overflow water outlet pipe (4) arranged at the bottom of the cooling box (2) and extending upward into the cooling box (2), a plurality of rotating wheels (5) arranged in the cooling box (2) and pressed on the guide tube, a plurality of observation windows (6) arranged at the top of the cooling box (2) and openable, an air extraction pipe (7) arranged at the bottom of the cooling box (2) and extending upward into the cooling box (2), a water receiving pan (8) arranged on the frame (1) and receiving cooling water seeping from the inlet and outlet of the cooling box (2), and a water return pipe (9) arranged between the water receiving pan (8) and the overflow drain pipe; The height of the upper end of the air extraction pipe (7) is higher than the height of the upper end of the overflow drainage pipe; the water inlet pipe (3) and the overflow outlet pipe (4) are used to connect to an external circulating cooling device to realize a water circulating cooling function; and the air extraction pipe (7) is used to connect to an external vacuum extraction device.

2. The vacuum water cooling device for a urinary catheter extrusion production line according to claim 1, characterized in that: The portion of the water inlet pipe (3) located inside the cooling box (2) extends horizontally along the length direction of the cooling box (2), and the water inlet pipe (3) is provided with a plurality of water inlet holes (31) arranged along the length direction thereof. The portion of the water inlet pipe (3) located inside the cooling box (2) is located on one side of the bottom of the cooling box (2), and the water inlet holes (31) face the other side of the bottom of the cooling box (2).

3. The vacuum water cooling device for a urinary catheter extrusion production line according to claim 1, characterized in that: The top of the cooling box (2) is provided with a plurality of observation ports, and the observation window (6) comprises a rubber sealing ring (61) arranged on the top of the cooling box (2) and surrounding the observation port, two rotating frames (62) rotatably connected to the cooling box (2), a tempered glass (63) installed between the two rotating frames (62) and used to press against the rubber sealing ring (61), and a fixing knob bolt (64) arranged between the rotating frame (62) and the cooling box (2) and allowing the tempered glass (63) to remain pressed against the rubber sealing ring.

4. The vacuum water cooling device for a urinary catheter extrusion production line according to claim 1, characterized in that: A filter assembly (10) is provided at the connection between the water receiving tray (8) and the water return pipe (9), and the filter assembly (10) comprises an embedding ring (101) embedded in the connection between the water receiving tray (8) and the water return pipe (9), and a filter net (102) provided in the embedding ring (101).

5. The vacuum water cooling device for a urinary catheter extrusion production line according to claim 1, characterized in that: A V-shaped annular groove (51) is provided on the circumference of the rotating wheel (5).