Surface-contact water-stop apparatus
By designing a "C"-shaped surface contact water-stopping device, and utilizing the cooperation between the upper clamping part and the slot and the fixing of the connecting parts, the problem of squeezing instability caused by the short contact distance of the upper clamping part is solved, and a stable water-stopping effect of the hose is achieved.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- HENAN SHUGUANG HUIZHIKANG BIOTECH CO LTD
- Filing Date
- 2025-12-10
- Publication Date
- 2026-07-30
AI Technical Summary
The existing surface contact water-stopping device has a short contact distance between the upper clamping part and the hose axis, which is prone to deformation, resulting in a weakened squeezing effect and problems such as water-stopping failure and backflow.
Design a surface contact water-stopping device with an overall "C" shape. By cooperating with the upper clamping part extending on the hose axis and the groove, and by utilizing the cooperation of the connector and the guard arm, ensure that the upper clamping part has long-distance contact with the hose, and achieve stable compression.
It improves the stability and reliability of the water-stopping device, prevents water leakage, backflow, and ensures stable compression of the hose in the radial direction.
Smart Images
Figure CN2025141345_30072026_PF_FP_ABST
Abstract
Description
Surface contact water stop device Technical Field
[0001] This invention belongs to the field of medical device technology, specifically relating to a surface contact water-stopping device. Background Technology
[0002] Disposable indwelling needle products are short-term indwelling infusion products that can reduce the pain and fear of injections caused by repeated venous punctures in children, alleviate the anxiety of parents, facilitate clinical medication, and provide emergency medication for critically ill patients. They also reduce the workload of nurses and reduce the pain of children. Therefore, indwelling needle products are widely used in clinical infusion.
[0003] For example, Chinese patent document CN208405595U discloses a water-stopping clip, in which the upper surface of the lower holding part is provided with a storage groove, the side wall of the storage groove is a step on both sides, the lower holding part is provided with a storage groove, the hose is located in the groove and will not swing left and right, the upper holding part has a good squeezing effect on the hose, and the water-stopping effect is good.
[0004] However, the contact distance between the upper clamping part and the hose is relatively short on the axis of the hose. If the upper clamping part is deformed or otherwise damaged, the squeezing force of the upper clamping part on the hose will weaken, eventually leading to problems such as failure to stop water flow and backflow. Summary of the Invention
[0005] The technical problem to be solved by this invention is: how to design a surface-contact water-stopping device so that the compression of the upper clamping part on the hose does not weaken.
[0006] The specific technical solution of the present invention is as follows:
[0007] A surface contact water-stopping device, which is C-shaped in general, includes a right part, a lower part, a left part, and an upper part that are connected and fixed in series. The upper part of the right part and the left part of the upper part are provided with locking parts. The right part is provided with a right locking hole, the left part is provided with a left locking hole, and the lower part is provided with a locking groove. Below the locking groove is an upper holding part, which is fixed to the upper part. The upper holding part and the locking groove cooperate with each other, and both extend in the direction of the axis of the hose.
[0008] The shape of the lower surface of the upper support part is the same as the shape of the card slot.
[0009] A protective plate is fixed on the right or left side, extending in the direction of the upper support part. Two protective arms are provided at the far end of the plate, and the space between the two protective arms is a groove. The upper support part is fixed to the upper part by a connector, and a part of the upper support part and the connector is located in the groove.
[0010] The upper support part and / or the connector fits the groove with a clearance.
[0011] The locking element used for opening and closing between the upper part of the right side and the left part of the upper part includes locking element B and locking element A. Locking element B is a protrusion fixed to the upper part of the right side, and locking element A is a recess provided on the left part of the upper part.
[0012] The upper surface of the upper part is provided with a friction surface.
[0013] The left side includes a deformable arc segment, and the right side has a fixed protective plate.
[0014] Compared with the prior art, the technical effect of the present invention is that the contact distance between the upper clamping part and the hose on the axis of the hose is longer, resulting in stable compression of the hose by the upper clamping part and avoiding failure of water sealing. Attached Figure Description
[0015] Figure 1 is a schematic diagram of the present invention. Detailed Implementation
[0016] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0017] As shown in Figure 1, a surface contact water-stopping device is shaped like a "C" and includes a right part 1, a lower part 2, a left part 3, and an upper part 4 that are connected and fixed in series. The upper part of the right part 1 and the left part of the upper part 4 are provided with locking parts, which are used for opening and closing between the upper part of the right part 1 and the left part of the upper part 4.
[0018] To facilitate the opening and closing of the locking mechanism, the left part 3 includes a deformable arc segment 104. When switching between opening and closing the locking mechanism, the deformable arc segment 104 can deform itself to make adaptive adjustments.
[0019] The right part 1 has a right locking hole 301, the left part 3 has a left locking hole 105, and the lower part 2 has a locking groove 202. The right locking hole 301, the left locking hole 105, and the locking groove 202 are used for the passage of the flexible hose.
[0020] The card slot 202 is provided with an upper support part 201 below it. The upper support part 201 is fixed on the upper part 4. The upper support part 201 cooperates with the card slot 202, and both extend along the axial direction of the hose.
[0021] To facilitate the extrusion of the hose into a thin layer, the lower surface of the upper support portion 201 has the same shape as the slot 202.
[0022] During the descent, in order to prevent the upper support part 201 from swaying in the front-back direction (that is, in the inward and outward direction perpendicular to the screen), a protective plate 303 is fixed on the right part 1 or the left part 3. The protective plate 303 extends in the direction of the upper support part 201, and two protective arms 304 are provided at its far end (the end away from the right part 1 or the left part 3). The space between the two protective arms 304 is a protective groove 302.
[0023] The upper support part 201 is fixed to the upper part 4 by the connector 204. A part of the upper support part 201 and the connector 204 are located in the guard groove 302. During the downward movement of the upper support part 201, the radial constraint on the upper support part 201 is maintained so that it moves on the correct path.
[0024] For ease of control, the upper support part 201 and / or the connector 204 are fitted with the guard groove 302 with a clearance.
[0025] The locking mechanism for opening and closing between the upper part of the right part 1 and the left part of the upper part 4 includes locking mechanism B102 and locking mechanism A103. Locking mechanism B102 is a protrusion fixed to the upper part of the right part 1, and locking mechanism A103 is a recess provided on the left part of the upper part 4.
[0026] To facilitate the opening and closing of the locking mechanism, the upper surface of the upper part 4 is provided with a friction surface 101, which makes it convenient for medical staff to move the upper part 4 by hand.
[0027] The left part 3 will deform. Ideally, the right part 1 should have a fixed protective plate 303.
[0028] Its working principle is as follows:
[0029] S1. During normal use (i.e., when the hose is flowing water), the hose passes through the right locking hole 301, the locking groove 202, and the left locking hole 105 in sequence, as shown in Figure 1. The upper clamping part 201 does not contact the hose, and the medicine inside the hose flows normally.
[0030] S2. When stopping the water flow (i.e., when the hose is flowing), press down on the area where the locking member A103 is located. The upper part 4 moves downward to complete the locking of the locking member B102 and the locking member A103. During this process, the upper holding part 201 moves downward synchronously with the upper part 4. At this time, the upper part 201 is above the hose, the groove 202 is below, and the two sides are the side walls 203 of the groove 202. The hose is constrained in all four directions. When the upper holding part 201 presses down, the hose will not move in its radial direction. Therefore, when the upper holding part 201 presses down, it completes the squeezing of the hose, making the hose unable to flow and completing the water stop.
[0031] Features of this application:
[0032] S1. This invention extends along the axis of the hose, and the contact distance between the upper clamping part and the hose is relatively long, which can maintain the long-distance compression of the hose by the upper clamping part. It is not a problem if a small area of the hose is not cut off by the upper clamping part. As long as any small area of the hose is cut off by the upper clamping part, water sealing can be achieved. That is to say, the upper clamping part and the hose have integral surface contact, resulting in a more stable and reliable water sealing effect, preventing phenomena such as weak water sealing, no water stopping, and backflow.
[0033] S2. When the upper clamping part 201 is pressed, the hose will not move in its radial direction (see above, plus the constraint of the right clamping hole 301 and the left clamping hole 105). Therefore, when the upper clamping part 201 is pressed down, it completes the squeezing of the hose - making the hose unable to flow and completing the water stop.
[0034] S3. The upper clamping part 201 is fixed to the upper part 4 by the connector 204. A part of the upper clamping part 201 and the connector 204 is located in the groove 302. During the downward movement of the upper clamping part 201, the radial constraint on the upper clamping part 201 is maintained so that it moves on the correct path. This ensures that its axis is consistent with the axis of the groove 202 and the axis of the hose.
[0035] For other details, please refer to the existing technology.
[0036] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present invention, and these should also be considered within the scope of protection of the present invention.
Claims
1. A surface-contact water-stopping device, generally shaped like a "C", comprising a right part (1), a lower part (2), a left part (3), and an upper part (4) connected and fixed in series, wherein the upper part of the right part (1) and the left part of the upper part (4) are provided with locking members, the right part (1) is provided with a right locking hole (301), the left part (3) is provided with a left locking hole (105), the lower part (2) is provided with a locking groove (202), and an upper holding part (201) is provided below the locking groove (202), characterized in that: The upper support part (201) is fixed on the upper part (4), and the upper support part (201) cooperates with the slot (202), and both extend along the axial direction of the hose.
2. The surface contact water-stopping device as described in claim 1, characterized in that: The shape of the lower surface of the upper support part (201) is the same as the shape of the slot (202).
3. The surface contact water-stopping device as described in claim 1, characterized in that: A guard plate (303) is fixed on the right part (1) or the left part (3). The guard plate (303) extends in the direction of the upward support part (201). Two guard arms (304) are provided at its far end. The space between the two guard arms (304) is a guard groove (302). The upper support part (201) is fixed on the upper part (4) by the connector (204). One part of the upper support part (201) and the connector (204) is located in the guard groove (302).
4. The surface contact water-stopping device as described in claim 3, characterized in that: The left part (3) includes a deformable arc segment (104), and the right part (1) has a fixed guard plate (303).
5. The surface contact water-stopping device as described in claim 3, characterized in that: The upper support part (201) and / or the connector (204) are clearance-fitted with the guard groove (302).
6. The surface contact water-stopping device as described in claim 1, characterized in that: The locking element for opening and closing between the upper part of the right part (1) and the left part of the upper part (4) includes locking element B (102) and locking element A (103). Locking element B (102) is a protrusion fixed to the upper part of the right part (1), and locking element A (103) is a recess provided on the left part of the upper part (4).
7. The surface contact water-stopping device as described in claim 1, characterized in that: The upper surface of the upper part (4) is provided with a friction surface (101).