A flow stop clamp

Abstract

This utility model discloses a flow-stopping clamp, relating to the field of infusion tubing accessories technology, which solves the problem of inconvenient later installation and use of existing flow-stopping clamps. The utility model includes a clamp body with an open end I and an open end II, and a cooperating locking structure between the ends of the open ends I and II; the clamp body has an elastic section, and cooperating compression structures are provided on both sides of the elastic section; a through-hole groove is formed on the elastic section and the open end II to allow pipe insertion, and a pipe-through channel is provided on the clamp body connecting to the through-hole groove, and the pipe-through channel is configured to cooperate with the compression structure. By providing the through-hole groove, pipe insertion is allowed, and by providing the pipe-through channel on the clamp body to cooperate with the pipe, the pipe can be quickly inserted into place, achieving rapid cooperation between the compression structure and the pipe, eliminating the need for the end-insertion method used in existing technologies, thus improving the convenience and efficiency of later installation of the flow-stopping clamp.

Description

Technical Field

[0001] This utility model relates to the field of infusion tube fittings technology, and in particular to a flow stop clamp. Background Technology

[0002] Closure clamps are commonly used on infusion tubing to stop the flow of fluid by compressing the tubing, facilitating other operations after cessation of flow. Most existing closure clamps utilize the compression of a pair of sharp points on an elastic clamp to deform and close the infusion tubing. To increase clamping force, the sharp points are designed to be relatively large to increase the contact area, providing strong clamping force in the short term. However, prolonged clamping can easily lead to tubing deformation and even rupture, resulting in incomplete cessation of flow when clamping again. Furthermore, releasing the closure clamp requires forceful downward pressing, which is inconvenient for single-handed operation and increases the workload for medical personnel.

[0003] Chinese utility model patent CN202036607U discloses a positive pressure flow-stopping clamp. The positive pressure flow-stopping clamp has a channel for an infusion tube to pass through. It also includes an elastic structure for deforming and restoring the channel, and a retaining structure for maintaining the deformed state of the channel. The channel contains an infusion tube clamping structure and an infusion tube squeezing structure. The infusion tube clamping structure blocks the infusion tube in the deformed state and before the infusion tube squeezing process. The infusion tube squeezing structure squeezes the infusion tube downstream along the infusion direction during the channel deformation process, creating positive pressure. This technical solution has a simple structure and is easy to use. The relatively long clamping structure blocks the infusion tube, which can improve the interception capacity to a certain extent. However, it increases the contact area with the pipe, requiring a large clamping force to be maintained continuously. Furthermore, in actual use, when using a flow stop clamp on a pipeline that has not been pre-installed with a flow stop clamp, the flow stop clamp in this patent and other existing technologies requires the pipeline to be inserted into the insertion and exit holes on the flow stop clamp from the end to achieve the combination of the flow stop clamp and the pipeline. The end of the pipeline is generally equipped with a needle or other accessories. Therefore, the existing flow stop clamps are inconvenient to use in scenarios where they are added later. Utility Model Content

[0004] To address the shortcomings of the aforementioned background technology, this utility model proposes a flow-stopping clip, which solves the problem of inconvenience in later installation and use of existing flow-stopping clips.

[0005] The technical solution of this utility model is implemented as follows: a flow-stopping clamp includes a clamp body, the clamp body is provided with an open end I and an open end II, and a locking structure is provided between the ends of the open end I and the open end II; the clamp body is provided with an elastic section, and a squeezing structure is provided on both sides of the elastic section; a through-hole groove is opened on the elastic section and the open end II to meet the pipe through-hole requirements, and a pipe through-hole channel is provided on the clamp body to connect with the through-hole groove, and the pipe through-hole channel is configured to cooperate with the squeezing structure.

[0006] Preferably, the extrusion structure includes an upper V-shaped protrusion and a lower V-shaped protrusion correspondingly disposed on the clamping body, and both the upper V-shaped protrusion and the lower V-shaped protrusion have arc-shaped meshing surfaces at their mating points. During use, the arc-shaped meshing surfaces contact both sides of the pipe, making it easy to clamp the pipe without easily damaging it, thus providing excellent protection for the pipe.

[0007] Preferably, the pipe passage includes a connecting groove that connects the two through grooves, the connecting groove is connected to a clearance groove, and the clearance groove is opened on the lower V-shaped protrusion; the pipe can enter between the upper V-shaped protrusion and the lower V-shaped protrusion from the connecting groove and the clearance groove.

[0008] Preferably, the locking structure includes a plug block disposed on the open end I, and an insertion hole that mates with the plug block is provided on the open end II.

[0009] Preferably, a guide slope is provided between the open end I and the open end II. The clamp body is provided with an arc-shaped protrusion.

[0010] Preferably, a locking mechanism is provided between the open end I and the open end II. The locking mechanism includes a T-shaped locking block that slides laterally on the open end II, and the open end I is provided with a T-shaped locking groove that cooperates with the T-shaped locking block.

[0011] The beneficial effects of this utility model are as follows: By setting a locking structure, the open end I and open end II can be initially locked during the clamping process, preventing them from coming apart and maintaining the clamping force and posture. By setting a squeezing structure, the pipe can be squeezed and clamped to achieve flow cessation. By setting a through-hole, the pipe can be inserted, and by setting a through-hole channel on the clamp body that matches the pipe, the pipe can be quickly inserted into place, achieving rapid cooperation between the squeezing structure and the pipe. This eliminates the need for the end-insertion method used in existing technologies, improving the convenience and installation efficiency of subsequent addition of flow-stopping clamps. Attached Figure Description

[0012] To more clearly illustrate the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the usage state of this utility model;

[0014] Figure 2 This is a schematic diagram of the flow-stopping clamp structure from one perspective of the present invention;

[0015] Figure 3 This is a schematic diagram of the flow-stopping clamp structure from another perspective of this utility model;

[0016] Figure 4 Schematic structural diagram of the locking mechanism of the present utility model;

[0017] Figure 5 Schematic diagram of the cooperation between the cross-shaped buckle and the T-shaped locking groove in the secondary locking state of the present utility model;

[0018] In the figure: 1: Opening end I, 2: Opening end II, 3: Elastic section, 4: Pipe, 5: Penetration groove, 6: Upper V-shaped convex part, 7: Lower V-shaped convex part, 8: Arc-shaped meshing surface, 9: Communication groove, 10: Avoidance groove, 11: Insert block, 12: Insert hole, 13: Guide inclined surface, 14: Arc-shaped convex part, 15: Cross-shaped clamping block, 16: T-shaped locking groove, 17: Transverse sliding groove, 18: Long arm end, 19: Short arm end, 20: Extended end. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] As Figure 1 , 2 , and shown in Figure 3, Embodiment 1, a flow stop clamp includes a clamp body. The clamp body is provided with an opening end I 1 and an opening end II 2. A matching clamping structure is provided between the ends of the opening end I 1 and the opening end II 2. The clamping structure can be used to perform preliminary locking between the opening end I 1 and the opening end II 2 during the clamping process, avoiding disengagement and maintaining the clamping force and posture. An elastic section 3 is provided on the clamp body. Matching extrusion structures are provided on the clamp body on both sides of the elastic section 3. The extrusion structures can be used to extrude and clamp the pipe 4 to achieve the flow stop of the pipe 4. Penetration grooves 5 for the pipe 4 to pass through are opened on the elastic section 3 and the opening end II 2. A pipe penetration channel communicating with the penetration groove 5 is provided on the clamp body, and the pipe penetration channel is arranged in cooperation with the extrusion structure. By providing the penetration groove 5 to satisfy the penetration of the pipe 4 and by providing a pipe penetration channel on the clamp body that cooperates with the pipe 4, the pipe 4 can be quickly penetrated in place, realizing the quick cooperation between the extrusion structure and the pipe 4, without the need to adopt the prior art method of penetrating from the end, improving the convenience and installation efficiency of installing the flow stop clamp later.

[0021] In this embodiment, the extrusion structure includes an upper V-shaped protrusion 6 and a lower V-shaped protrusion 7 correspondingly disposed on the clamping body. Both the upper V-shaped protrusion 6 and the lower V-shaped protrusion 7 have an arc-shaped meshing surface 8 at their mating points. During use, the arc-shaped meshing surface contacts both sides of the pipe, making it easy to clamp the pipe without damaging it, thus providing excellent protection for the pipe.

[0022] By providing an arc-shaped meshing surface 8 at the mating point of the upper V-shaped protrusion 6 and the lower V-shaped protrusion 7, the curvature of the meshing point is increased, reducing the deformation problem of the pipe 4 caused by the excessively sharp tip of the V-shaped setting in the prior art, while maintaining a certain clamping force.

[0023] When using this flow-stopping clamp, the locking structures of open end I1 and open end II2 are first separated, and the squeezing structure is also separated. The part of the pipe that needs to be stopped is inserted through the pipe passage into the squeezing structure, and both ends of the pipe are engaged with the through groove. Then, open end I is pressed to engage with the locking structure between open end II to achieve locking. After locking, the upper V-shaped protrusion 6 and the lower V-shaped protrusion 7 squeeze the pipe to achieve the purpose of stopping the flow.

[0024] Example 2, a flow-stopping clamp, is based on Example 1, except that the through-hole 5 is a U-shaped groove. Additionally, the pipe passage includes a connecting groove 9 that connects the two through-holes 5. The connecting groove 9 is connected to a clearance groove 10, which is located on the lower V-shaped protrusion 7. The pipe 4 can enter between the upper V-shaped protrusion 6 and the lower V-shaped protrusion 7 from the connecting groove 9 and the clearance groove 10.

[0025] In this embodiment, when installing the pipe 4, the locking structure between the open end I1 and the open end II2 is first opened, at which point the upper V-shaped protrusion 6 and the lower V-shaped protrusion 7 separate, leaving a gap between them. Then, the two ends of the pipe 4 at the part that needs to stop the flow are respectively aligned with the openings of the two insertion slots 5, and the pipe 4 is moved into the insertion slots 5. At the same time, the middle part of the pipe 4 is placed into the connecting slot 9. Then, the pipe 4 is moved from the connecting slot 9 to the clearance slot 10 and then removed from the clearance slot 10. After that, it moves around the lower V-shaped protrusion 7 to the gap between the upper V-shaped protrusion 6 and the lower V-shaped protrusion 7, thus completing the installation.

[0026] Example 3 provides a flow-stopping clamp. Based on Example 2, the clamping structure includes an insert block 11 on the open end I1 and an insertion hole 12 on the open end II2 that mates with the insert block 11. A guide slope 13 is provided between the open end I1 and the open end II2. In this example, by providing the guide slope 13 at the mating point of the open end I1 and the open end II2, it is convenient to press down the open end I1 when flow cessation is needed. Under the action of the guide slope 13, the open end II2 is pushed outward until the insert block 11 is inserted into the insertion hole 12. At this time, the upper V-shaped protrusion 6 and the lower V-shaped protrusion 7 abut against the pipe 4, thereby achieving flow cessation. Conversely, when it is necessary to release the flow-stopping clamp, the open end I1 is first pressed down, the insert block 11 separates from the insertion hole 12, and then the open end II2 is pulled outward. After the open end I1 springs back, the open end II2 is released to allow it to spring back to its original position.

[0027] As a further optional embodiment, the clamp body is provided with an arc-shaped protrusion 14. This arc-shaped protrusion 14 provides a support point for single-handed operation when releasing the flow-stop clamp. When releasing the flow-stop clamp, the user's thumb opens it through both the arc-shaped protrusion and the opening end II, making opening easy, operation convenient, and disassembly easy after use. When closing the pipeline, the thumb lightly presses the arc-shaped protrusion 14 of the flow-stop clamp, causing the opening end I to mate with the opening end II, easily closing the pipeline. It also allows the flow-stop clamp to be easily hung on a hook at the site of use when stopping flow, further improving ease of use.

[0028] Example 4, a flow-stopping clamp, based on Example 3, such as... Figure 4 , 5 As shown, a locking mechanism is provided between the open end I1 and the open end II2. Using the locking mechanism, a secondary locking can be performed after the insert 11 is initially locked when inserted into the insert hole 12, to prevent the open end I1 from accidentally coming into contact with the open end and disengaging during use.

[0029] Specifically, in this embodiment, the locking mechanism includes a horizontally slidable U-shaped locking block 15 on the open end II2. In this embodiment, a horizontal sliding groove is provided on the open end II2, and the horizontal U-shaped locking block 15 is slidably disposed on the horizontal sliding groove 17. The open end I1 is provided with a T-shaped locking groove 16 that cooperates with the U-shaped locking block 15. In this embodiment, the T-shaped locking groove 16 is arranged horizontally, that is, the long arm end 18 of the T-shaped locking groove 16 is arranged horizontally, and the two short arm ends 19 are arranged vertically. Before locking, the T-shaped locking block 15 is located at one end of the transverse slide groove 17, and the protruding end 20 of the T-shaped locking block 15 corresponds to the two short arm ends 19 of the T-shaped locking groove 16. The open end I1 is pressed down and pushed outward by the guide slope 13. At this time, the protruding end 20 of the T-shaped locking block 15 slides into the two short arm ends 19 of the T-shaped locking groove 16. Before and after the insertion block 11 is inserted into the insertion hole 12, it always moves vertically at the two short arms 19. When the insertion block 11 is inserted into the insertion hole 12, the protruding end 20 of the T-shaped locking block 15 corresponds to the long arm end 18 of the T-shaped locking groove 16. At this time, the T-shaped locking block 15 is pushed laterally along the transverse slide groove 17 so that its protruding end 20 slides into the long arm end 18 of the T-shaped locking groove 16, thereby further locking the position of the open end I1 and the open end II2. When unlocking the plug 11 and the socket 12, the protruding end 20 of the T-shaped locking block 15 must first be slid laterally to the range of the two short arm ends 19 before unlocking can be performed. This serves as a secondary locking mechanism and improves reliability.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flow stop clamp comprising a clamp body, characterised in that: The clamp is provided with an open end I (1) and an open end II (2), and a locking structure is provided between the ends of the open end I (1) and the open end II (2); the clamp is provided with an elastic section (3), and a squeezing structure is provided on both sides of the clamp; a through groove (5) is provided on the elastic section (3) and the open end II (2) to allow the pipe (4) to pass through, and a pipe passage is provided on the clamp to connect the through groove (5), and the pipe passage is configured to cooperate with the squeezing structure.

2. The flow stop clamp of claim 1, wherein: The extrusion structure includes an upper V-shaped protrusion (6) and a lower V-shaped protrusion (7) correspondingly provided on the clamp body, and an arc-shaped meshing surface (8) is provided at the mating point of the upper V-shaped protrusion (6) and the lower V-shaped protrusion (7).

3. The flow stop clamp of claim 2, wherein: The through-cut groove (5) is a U-shaped groove.

4. A flow stop clamp according to claim 2 or 3, characterised in that: The pipe passage includes a connecting groove (9) that connects the two through grooves (5), and the connecting groove (9) is connected to the avoidance groove (10). The avoidance groove (10) is opened on the lower V-shaped protrusion (7). The pipe (4) can enter between the upper V-shaped protrusion (6) and the lower V-shaped protrusion (7) from the connecting groove (9) and the avoidance groove (10).

5. The flow stop clamp of claim 4, wherein: The locking structure includes a plug (11) on the open end I (1) and a plug hole (12) on the open end II (2) that mates with the plug (11).

6. The flow stop clamp of claim 5, wherein: A guide slope (13) is provided between the open end I (1) and the open end II (2).

7. The flow stop clamp of claim 6, wherein: The clamp body is provided with an arc-shaped protrusion (14).

8. The flow stop clamp of any one of claims 1-3, 5-7, wherein: A locking mechanism is provided between the open end I (1) and the open end II (2).

9. The flow stop clamp of claim 8, wherein: The locking mechanism includes a T-shaped locking block (15) that slides laterally on the open end II (2), and a T-shaped locking groove (16) that cooperates with the T-shaped locking block (15) is provided on the open end I (1).

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