A catheter connector

Abstract

The utility model discloses a kind of conduit connectors, it is related to fluid delivery technical field, comprising: connector main body;At least one blocking frame and locking lug, locking lug is structured as can form limit with the blocking frame in the opposite another conduit connector, to join two conduit connectors;Valve assembly, including valve handle and valve;Free rotation strip, it is located at the outside of connector main body, is equipped with at least one protruding tooth, protruding tooth is used to contact with the locking lug of opposite conduit connector, free rotation strip is equipped with locking notch;Wherein, when valve is in open state, the end of valve handle enters the locking notch of free rotation strip and forms limit, to prevent the locking lug in the opposite conduit connector contacted with the protruding tooth of free rotation strip rotates.The above-mentioned conduit connector effectively avoids two conduit connectors to disconnect when valve is in open state, to avoid leakage caused by one end misoperation.

Description

Technical Field

[0001] This utility model relates to the field of fluid transport technology, and in particular to a conduit connector. Background Technology

[0002] Fluid connectors have been developed for a variety of applications to connect two fluid-carrying conduits together. Specifically, it is common practice to place a fluid connector at the end of the conduit, which engages with another connector applied to the open end of the second conduit to be connected. For efficient fluid dispensing, these connectors need to maintain a seal during connection and preferably have a simple and robust design.

[0003] For ease of use, valve assemblies are often combined with fluid conduit connectors. The valve assembly prevents fluid from leaking from the end of the connector when it is disconnected from the opposite connector, and also prevents the connector from disconnecting when the valve is in the open position.

[0004] Existing connectors that integrate valve assemblies and locking systems, while preventing disconnection when the valve is open, are often complex in structure, requiring numerous individual components to work together. This results in a bulky overall connector structure, causing inconvenience when the connector needs to be operated and engaged in small or restricted locations. Furthermore, the complex design may increase the difficulty, cost, and time of the manufacturing process.

[0005] Therefore, there are still shortcomings and deficiencies in the existing technology. How to provide a conduit connector with a simple structure that can prevent the connector from disconnecting when the valve is in the open state is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a conduit connector that solves the technical problems of existing connectors, which, although able to prevent disconnection when the valve is open, have complex structures and cause many inconveniences in manufacturing and use.

[0007] To achieve the above objectives, this utility model provides a catheter connector, comprising:

[0008] Connector body;

[0009] At least one blocking bracket disposed on the connector body;

[0010] At least one locking lug is provided on the connector body, the locking lug being configured to form a stop with a stop in another opposite conduit connector to engage the two conduit connectors;

[0011] The valve assembly includes a rotatable valve handle disposed outside the connector body and a valve disposed inside the connector body and connected to the valve handle;

[0012] A free-rotating bar is rotatably disposed outside the connector body and has at least one protruding tooth for contacting the locking lug of the opposite conduit connector. The free-rotating bar also has a locking notch.

[0013] When the valve is in the open state, the end of the valve handle enters the locking notch of the free-rotating bar to form a limit, thereby preventing the locking lug in the relative conduit connector that contacts the protruding teeth of the free-rotating bar from rotating.

[0014] Preferably, it further includes a biasing element, one end of which is connected to the free-rotating bar, and the other end is connected to the outside of the connector body.

[0015] Preferably, the connector body is provided with a circumferential groove, and the protruding teeth extend through the groove to the side near the blocking frame.

[0016] Preferably, the valve is connected to the valve handle via a connecting shaft.

[0017] Preferably, the free-rotating bar is provided with a plurality of protruding teeth, wherein at least one pair of protruding teeth is configured to form a support on the opposite edge of the locking lug of the relative conduit connector.

[0018] Preferably, at least one pair of protruding teeth are spaced apart from each other on the free-rotating bar by a distance equal to the width of the locking lug.

[0019] Preferably, the locking lug is at least partially capable of fitting below the blocking frame formed relative to the conduit connector.

[0020] Preferably, there are two locking lugs, which are disposed opposite to each other on the connector body.

[0021] Preferably, the free-rotating strip surrounds and encircles the circumference of the connector body.

[0022] Preferably, the free-rotating bar is partially circular in shape.

[0023] Compared to the aforementioned background technology, the conduit connector provided by this utility model has a simple structure, can reduce manufacturing costs by using fewer parts, and has a slender overall size, which can reduce installation space. When the valve is in the open state, the end of the valve handle enters the locking notch of the free-rotating bar to form a limit, and the locking lug in the opposite conduit connector that contacts the protruding teeth of the free-rotating bar cannot rotate, effectively preventing the two conduit connectors from disconnecting when the valve is in the open state, thereby avoiding leakage caused by misoperation at one end. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the catheter connector provided in an embodiment of the present utility model;

[0026] Figure 2 This is a schematic diagram from another perspective of the catheter connector provided in an embodiment of the present utility model;

[0027] Figure 3 This is one of the exploded views of the conduit connector provided in the embodiment of this utility model;

[0028] Figure 4 This is the second exploded view of the conduit connector provided in the embodiment of this utility model;

[0029] Figure 5 A cross-sectional view of the catheter connector provided in an embodiment of this utility model;

[0030] Figure 6 This is a schematic diagram of the catheter connector provided in this embodiment of the present invention before it is engaged with another catheter connector;

[0031] Figure 7 This is a schematic diagram of the conduit connector provided in this embodiment of the present invention after being engaged with another conduit connector (when the valve is closed).

[0032] Figure 8 This is a schematic diagram of the conduit connector provided in this embodiment of the present invention after being engaged with another conduit connector (when the valve is open).

[0033] Figures 1 to 8Chinese reference numerals: 1. Connector body; 11. Blocking bracket; 12. Locking lug; 13. Slide groove; 14. Connector head; 141. Threaded part; 2. Valve assembly; 21. Valve; 22. Valve handle; 23. Connecting shaft; 3. Free rotation bar; 31. Protruding tooth; 32. Locking notch; 33. First component; 34. Second component; 4. Bias element; 100. Conduit connector. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] This utility model provides a catheter connector 100 for joining two catheters, while preventing accidental separation of the catheters.

[0037] The conduit connected via the conduit connector 100 can be a pipe, transmission line, or other form of enclosed channel for conveying fluid. Preferably, the conduit engaging with the conduit connector 100 can be used to connect to a water system or pipeline, but those skilled in the art should understand that the conduit connector 100 provided by this invention can also be used in other application scenarios.

[0038] Please refer to this as well. Figures 1 to 8 The catheter connector 100 provided by this utility model includes:

[0039] Connector body 1;

[0040] At least one blocking bracket 11 is provided on the connector body 1;

[0041] At least one locking lug 12 is provided on the connector body 1, the locking lug 12 being configured to be able to form a limit with a stop 11 in the opposite conduit connector 100 to engage the two conduit connectors 100.

[0042] Valve assembly 2 includes a rotatable valve handle 22 located outside the connector body 1 and a valve 21 located inside the connector body 1 and connected to the valve handle 22;

[0043] The free-rotating bar 3 is rotatably disposed on the outside of the connector body 1 and is provided with at least one protruding tooth 31. The protruding tooth 31 is used to contact the locking lug 12 of the opposite conduit connector 100. The free-rotating bar 3 is provided with a locking cutout 32.

[0044] When the valve 21 is in the open state, the end of the valve handle 22 enters the locking notch 32 of the free-rotating bar 3 to form a limit, so as to prevent the locking lug 12 in the relative conduit connector 100 that contacts the protruding teeth 31 of the free-rotating bar 3 from rotating.

[0045] The connector body 1 is generally cylindrical in shape. The blocking bracket 11 and the locking lug 12 are located on the same side of the connector body 1, and the locking lug 12 in each conduit connector 100 protrudes longitudinally on the connector body 1. The valve 21 can be opened or closed by rotating the valve handle 22 to drive the valve 21 to rotate.

[0046] When conduit connector 100 engages with another conduit connector 100, the end faces of the two connector bodies 1 of the two conduit connectors 100 abut against each other, and locking lugs 12 respectively enter the opposite conduit connector 100. When the two conduit connectors 100 rotate relative to each other, the locking lugs 12 respectively lock under the blocking frame 11 of the opposite conduit connector 100, thereby achieving engagement. When the two conduit connectors 100 are engaged and the valves 21 in the two conduit connectors 100 are in the open state, the end of the valve handle 22 enters the locking notch 32 of the free rotation bar 3 to form a limit. At this time, the free rotation bar 3 cannot rotate, and the locking lugs 12 in the opposite conduit connector 100 that are in contact with the protruding teeth 31 of the free rotation bar 3 cannot rotate, thereby preventing the locking lugs 12 from being released from the limit by the rotation of the locking lugs 12 and the blocking frame 11 in the opposite conduit connector 100, and preventing the two conduit connectors 100 from disconnecting when the valve 21 is in the open state.

[0047] With this configuration, when valve 21 is in the open state, the end of valve handle 22 enters the locking notch 32 of free-rotating bar 3 to form a limit, and the locking lug 12 in the opposite conduit connector 100 that contacts the protruding tooth 31 of free-rotating bar 3 cannot rotate, effectively preventing the two conduit connectors 100 from disconnecting when valve 21 is in the open state and preventing fluid leakage.

[0048] Specifically, the description in this specification also refers to a catheter having a longitudinal axis that is engaged by the catheter connector 100, and components of the catheter connector 100 that project in a straight line with or rotate about the longitudinal axis. Therefore, the catheter connector 100 also has a longitudinal axis defined between a front surface to be engaged with an opposing catheter connector 100 and a rear surface engaged with the catheter.

[0049] A locking lug 12 protrudes longitudinally from the connector body and is at least partially capable of fitting under a retainer 11 formed by the opposing conduit connector 100. The free end of the protruding locking lug 12 defines a laterally extending head that can engage with the retainer 11. The locking lug 12 of one conduit connector 100 is located near the retainer 11 of the opposing conduit connector 100. The relative coaxial rotation of the two conduit connectors 100 holds the protruding locking lug 12 under and aligns it with the retainer 11, thereby engaging the conduit connectors 100 together by preventing longitudinal movement of the locking lug 12 through the retainer 11.

[0050] In some embodiments, please refer to the following: Figures 1 to 5 The conduit connector 100 provided by this utility model also includes a biasing element 4, one end of which is connected to the free rotation bar 3, and the other end is connected to the outside of the connector body 1.

[0051] The position where the biasing element 4 is connected to the connector body can apply a biasing force to rotate the free-rotating bar 3 to a position where the conduit connector 100 can be disconnected, ensuring that the free-rotating bar 3 will normally be in the disconnected position, except when the end of the valve handle 22 engages with the locking notch 32.

[0052] In some embodiments, the reset element is an elastic element. Specifically, the elastic element is a spring, one end of which is connected to the free-rotating bar 3, and the other end is connected to the outside of the connector body 1.

[0053] After the two conduit connectors 100 are inserted and rotate relative to each other, the locking lug 12 slides into the lower part of the blocking frame 11. When the conduit connector 100 rotates, the locking lug 12 contacts the protruding tooth 31 of the opposite conduit connector 100, which drives the free rotating bar 3 to rotate. As the free rotating bar 3 rotates, the spring is stretched. When the valve 21 is in the open state, the end of the valve handle 22 enters the locking notch 32 of the free rotating bar 3 to form a limit, preventing the free rotating bar 3 from resetting.

[0054] Furthermore, the locking notch 32 of the free-rotating bar 3 has a shape complementary to the end of the valve handle 22. The complementary shape of the locking notch 32 does not necessarily physically contact the entire adjacent surface of the end of the valve handle 22. The shape of the locking notch 32 can be configured to retain the end of the valve handle 22 within the free-rotating bar 3, thereby enabling the force applied to the free-rotating bar 3 to be transmitted to the valve handle 22, and similarly, the force applied to the valve handle 22 can be transmitted to the free-rotating bar 3.

[0055] In some embodiments, please refer to the following: Figures 1 to 4 The connector body 1 has a circumferential groove 13, and the protruding teeth 31 extend through the groove 13 to the side near the stop frame 11.

[0056] The protruding tooth 31 protrudes through the aforementioned groove 13 into the area where the locking lug 12 of the connector body 1 is located. This allows the protruding tooth 31 to be positioned so that its side contacts the side or edge of the locking lug 12 of the relative conduit connector 100. Coaxial rotation relative to the conduit connector 100 will cause the free-rotating bar 3 to rotate. Therefore, the protruding tooth 31 can act as a stop on the edge of the locking lug 12, which transmits rotational movement in one direction between the free-rotating bar 3 and the locking lug 12 of the relative conduit connector 100.

[0057] In some embodiments, please refer to the following: Figures 1 to 5 Valve 21 is connected to valve handle 22 via connecting shaft 23. The valve 21 assembly prevents fluid from flowing out of the conduit when conduit connector 100 is not engaged with the opposite conduit connector 100. Rotating valve handle 22 can rotate valve 21 via connecting shaft 23, thereby putting valve 21 into an open or closed state.

[0058] In some embodiments, please refer to the following: Figures 3 to 5 Valve 21 is a ball valve. Ball valves are simple in structure, reliable and durable, and can work effectively in the application scenarios of conduit connector 100.

[0059] In some embodiments, the free-rotating bar 3 is provided with a plurality of protruding teeth 31, wherein at least one pair of protruding teeth 31 is configured to form a support on the opposite edge of the locking lug 12 of the relative conduit connector 100.

[0060] The free-rotating bar 3 may include a plurality of protruding teeth 31, wherein at least one pair of protruding teeth 31 is configured to form a support on the opposite side or edge of the locking lug 12 of the relative conduit connector 100. Clockwise or counterclockwise rotation of the two conduit connectors 100 relative to each other will cause the free-rotating bar 3 to rotate accordingly. Clockwise or counterclockwise rotation of the locking lug 12 causes the corresponding edge of the locking lug 12 to contact one of the pair of protruding teeth 31 and apply a rotational force to the free-rotating bar 3.

[0061] In some embodiments, at least one pair of protruding teeth 31 are spaced apart from each other on the free-rotating bar 3 by a distance equal to the width of the locking lug 12. In this embodiment, the pair of protruding teeth 31 may be spaced apart on the free-rotating bar 3 at a distance equal to the width, span, or range of the locking lug 12 of the opposing conduit connector 100. The locking lug 12 engages between a pair of protruding teeth 31 in the opposing conduit connector 100.

[0062] In some embodiments, the free-rotating bar 3 is provided with a pair of protruding teeth 31. The free-rotating bar 3 is provided with only a pair of protruding teeth 31, which engage with a single locking lug 12 of the opposite conduit connector 100.

[0063] In some embodiments, the locking lug 12 can be fitted at least partially below the blocking bracket 11 formed relative to the conduit connector 100.

[0064] In some embodiments, the number of locking lugs 12 is two. The two locking lugs 12 are disposed opposite to each other on the connector body 1. The two locking lugs 12 may be disposed on opposite sides of the end of the connector body 1, leaving an open area to accommodate the locking lugs 12 relative to the conduit connector 100. This arrangement allows relative coaxial rotation of the conduit connector 100 to align and engage the two sets of locking lugs 12 and the stop brackets 11 they define.

[0065] In some embodiments, the free-rotating bar 3 is curved, and its radius of curvature is the same as the radius of the catheter to which the catheter connector 100 engages.

[0066] In some embodiments, the free-rotating bar 3 surrounds and encircles the circumference of the connector body 1.

[0067] In some embodiments, the free-rotating bar 3 is a single integral circular component.

[0068] In some embodiments, the free-rotating bar 3 includes several separate components. The free-rotating bar 3 includes a first component 33 and a second component 34, both of which are semi-circular. A protruding tooth 31 is provided on the first component 33, and a locking notch 32 is provided on the second component 34. The first component 33 and the second component 34 can be fixedly connected by pins, bolts, or screws.

[0069] In some embodiments, the free-rotating bar 3 is partially circular in shape.

[0070] In the conduit connector 100 provided by this utility model, the free-rotating bar 3 is installed on the outside of the connector body, adjacent to the valve handle 22. The free-rotating bar 3 is preferably in a curved form with a radius suitable for the radius of the conduit to be connected, which is the same as the radius of the conduit to be connected.

[0071] The free-rotating strip 3 can be a shape that completely surrounds the circumference of the connector body. For example, the free-rotating strip 3 can be a single integral circular component, while in some embodiments, the free-rotating strip 3 may include several separate components. It is understood that in other embodiments, the free-rotating strip 3 does not necessarily completely surround the circumference of the connector body 1, but can be a semi-circular or partially circular shape.

[0072] In some embodiments, the connector body 1 is further connected to a connector head 14, which is located on the side of the connector body 1 away from the locking lug 12, and the connector head 14 is provided with a threaded portion 141. The threaded portion 141 can be engaged with a threaded fitting at the end of the conduit.

[0073] The catheter connector 100 provided by this utility model Figure 7 The diagram shows two conduit connectors 100 engaged together with their respective valves 21 closed. The proximal end of each valve handle 22 faces the side of the free-rotating bar 3, which can rotate freely by force applied by the user or by force transmitted via the locking lug 12 and the protruding teeth 31 of the free-rotating bar 3. When the valves 21 are closed, the conduit connectors 100 can rotate freely relative to each other and can be separated.

[0074] Figure 8 The diagram shows two conduit connectors 100 engaged together with their respective valves 21 open, the end of each valve handle 22 located within a locking notch 32 of each free-rotating bar 3. When the valve 21 is open, the free-rotating bar 3 is held in the indicated position by the valve handle 22, such that the protruding teeth 31 of each free-rotating bar 3 prevent relative coaxial rotation of the two conduit connectors 100, thus preventing the two conduit connectors 100 from separating when the valve 21 is open.

[0075] The conduit connector 100 provided by this utility model integrates a valve assembly 2 on the connector body 1. When the valve 21 is opened, it can prevent disconnection from another conduit connector 100, thereby avoiding leakage caused by misoperation at one end. Compared with the prior art, it has a simple structure, can use fewer parts to reduce manufacturing costs, and the conduit connector 100 has a slender overall size, which can reduce installation space.

[0076] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0077] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A catheter connector (100), characterized in that, include: Connector body (1); At least one blocking bracket (11) is provided on the connector body (1); At least one locking lug (12) is provided on the connector body (1), the locking lug (12) being configured to form a stop with a stop (11) in another opposing conduit connector (100) to engage the two conduit connectors (100); The valve assembly (2) includes a rotatable valve handle (22) disposed outside the connector body (1) and a valve (21) disposed inside the connector body (1) and connected to the valve handle (22); A free-rotating bar (3) is rotatably disposed outside the connector body (1) and has at least one protruding tooth (31). The protruding tooth (31) is used to contact the locking lug (12) of the opposite conduit connector (100). The free-rotating bar (3) has a locking cutout (32). When the valve (21) is in the open state, the end of the valve handle (22) enters the locking notch (32) of the free-rotating bar (3) to form a limit, so as to prevent the locking lug (12) in the relative conduit connector (100) that contacts the protruding tooth (31) of the free-rotating bar (3) from rotating.

2. The catheter connector (100) according to claim 1, characterized in that, It also includes a biasing element (4), one end of which is connected to the free-rotating bar (3), and the other end is connected to the outside of the connector body (1).

3. The catheter connector (100) according to claim 1, characterized in that, The connector body (1) is provided with a circumferential groove (13), and the protruding tooth (31) extends through the groove (13) to the side near the stop frame (11).

4. The catheter connector (100) according to claim 1, characterized in that, The valve (21) is connected to the valve handle (22) via a connecting shaft (23).

5. The catheter connector (100) according to claim 1, characterized in that, The free-rotating bar (3) is provided with a plurality of protruding teeth (31), wherein at least one pair of protruding teeth (31) is configured to form a support on the opposite edge of the locking lug (12) of the opposite conduit connector (100).

6. The catheter connector (100) according to claim 5, characterized in that, At least one pair of protruding teeth (31) are spaced apart from each other on the free-rotating bar (3) by a distance equal to the width of the locking lug (12).

7. The catheter connector (100) according to claim 1, characterized in that, The locking lug (12) can at least partially fit below the blocking frame (11) formed relative to the conduit connector (100).

8. The catheter connector (100) according to claim 1, characterized in that, The number of locking lugs (12) is two, and the two locking lugs (12) are arranged opposite to each other on the connector body (1).

9. The catheter connector (100) according to claim 1, characterized in that, The free-rotating bar (3) surrounds and encircles the circumference of the connector body (1).

10. The catheter connector (100) according to claim 9, characterized in that, The free-rotating bar (3) is partially circular in shape.

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