Fluid connecting device
By introducing a limit shoulder design into the fluid connection device, the problem of the locking member interfering outside the preset position is solved, and a more stable fluid connection is achieved.
Patent Information
- Application Number
- CN202421495205.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-06-26
AI Technical Summary
When the existing fluid connection device is connected to the docking end, the locking member may interfere outside the preset position, resulting in unstable connection.
A fluid connection device is designed to add a limit shoulder setting. When the valve moves to the preset position, the limit shoulder releases the limit position on the locking member so that the locking member can enter the locking position; while when the valve moves away from the preset position, the limit shoulder limits the locking member to avoid interference.
It effectively solves the problem of interference of the locking member outside the preset position, and improves the stability and reliability of the fluid connection device.
Smart Images
Figure CN223049654U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fluid connection, and more specifically, to a fluid connection device. Background Art
[0002] Fluid connectors mainly include two connection heads. The structures of the two connection heads can be the same or different, and they are docked with each other to be further connected. For the convenience of description, generally, one connection head is called the connection end, and the other connection head docked with the connection end is called the docking end.
[0003] In the process of implementing the present invention, the inventor found that there are at least the following problems in the prior art: when connecting the connection end and the docking end, it is necessary to drive the valve to rotate to close it, and then restrain it through a locking member in the closed position. During the rotation of the valve relative to the valve seat, the locking member moves horizontally relative to the corresponding locking hole. During the movement of the locking member, it may need to pass through a hole so that the locking member protrudes in advance, thus causing interference. Summary of the Utility Model
[0004] In view of this, the purpose of the present utility model is to provide a fluid connection device, which can effectively solve the problem of interference of the locking member outside the preset position.
[0005] To achieve the above purpose, the present utility model provides the following technical solutions:
[0006] A fluid connection device, comprising:
[0007] A first valve seat;
[0008] A first valve, movably arranged on the first valve seat to open and close the communication channel on the first valve seat;
[0009] A locking member, movable to a locking position to prevent the first valve from moving relative to the first valve seat;
[0010] A limiting shoulder, used to limit the locking member to prevent the locking member from moving towards the locking position during at least part of the movement when the first valve is out of the preset position, and capable of releasing the limit when the first valve moves relative to the first valve seat to the preset position so that the locking member can move to the locking position.
[0011] When using a fluid connection device, during application, when the first valve moves to a preset position, at this time, the limiting shoulder does not impose a restraint, enabling the locking member to enter the locking position to prevent the first valve from rotating relative to the second valve seat, so that the first valve remains in the preset position, such as the closed position or the open position. During the movement away from the preset position, for reasons such as avoidance and interference, at this time, the limiting shoulder limits the locking member to prevent the locking member from moving towards the locking position, so as to relieve the interference. Through the above analysis, it can be found that by adding the setting of the limiting shoulder, the locking member can freely move to the locking position at the preset position, while being interfered by the limiting shoulder during some movements away from the preset position, which can avoid the protruding part of the locking member from causing interference. In summary, the fluid connection device can effectively solve the problem of interference of the locking member outside the preset position.
[0012] In some technical solutions, the first valve can move to the closed position to close the communication channel on the first valve seat, and can move to the open position to open the communication channel on the first valve seat, where the closed position is the preset position and / or the open position is the preset position.
[0013] In some technical solutions, it further includes a locking hole that cooperates with the locking member. When the first valve moves relative to the first valve seat to the preset position, the locking hole is aligned with the locking member.
[0014] In some technical solutions, the locking hole is provided on the first valve, and the locking member is provided on the first valve seat. The locking member is movably installed on the first valve seat along a direction perpendicular to the movement direction of the first valve and is abutted against the first valve seat through an elastic device.
[0015] In some technical solutions, one side of the first valve facing the locking member has a hole that is offset from the locking hole. The limiting shoulder is used to limit the locking member during the process of the locking member passing through the hole to prevent the locking member from moving towards the locking position, so that the locking member disengages from the locking position.
[0016] In some technical solutions, it includes a connection end and a docking end that are docked with each other. The connection end has the first valve and the first valve seat; the corresponding structure of the docking end is used to drive the first valve to perform opening and closing movements, and the limiting shoulder is provided on the corresponding structure.
[0017] In some technical solutions, the docking end includes a second valve and a second valve seat. The second valve is movably arranged on the second valve seat to open and close the communication channel on the second valve seat; an operating structure that is relatively fixed to the second valve is provided on the outside of the second valve seat, and the second valve or the operating structure is the corresponding structure.
[0018] In some technical solutions, a hook is provided on the docking end, a clamping groove that is rotationally clamped with the hook is provided on the first valve, the clamping groove has a slot for accommodating the hook portion of the hook on a side away from the docking end, and at least one of the slots is the hole.
[0019] In some technical solutions, the second valve is provided with the hook.
[0020] In some technical solutions, the first valve is rotatably installed on the first valve seat, and the second valve is rotatably installed on the second valve seat; the operating structure is a sleeve sleeved on the second valve seat. Description of the Drawings
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0022] Figure 1 Internal structure schematic diagram of the fluid connection device provided by the embodiment of the present invention;
[0023] Figure 2 Structure schematic diagram of the docking end provided by the embodiment of the present invention;
[0024] Figure 3 Structure schematic diagram of the connection end provided by the embodiment of the present invention;
[0025] Figure 4 Structure schematic diagram of the fluid connection device provided by the embodiment of the present invention;
[0026] Figure 5 Cross-sectional structure schematic diagram of the fluid connection device provided by the embodiment of the present invention;
[0027] Figure 6 Structure schematic diagram of the operating structure provided by the embodiment of the present invention.
[0028] The reference signs in the drawings are as follows:
[0029] First valve seat 1, first valve 2, locking member 3, limiting shoulder 4, communication channel 5, locking hole 6, elastic device 7, hole 8, second valve 9, second valve seat 10, hook 11, clamping groove 12, slot 13, operating portion 14, operating structure 15, guiding slope 16. Detailed Embodiments
[0030] An embodiment of the present utility model discloses a fluid connection device to effectively solve the problem of interference generated by the locking member outside the preset position.
[0031] 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 making creative efforts belong to the protection scope of the present utility model.
[0032] Please refer to Figures 1-6 , Figure 1 which is a schematic internal structure diagram of the fluid connection device provided by the embodiment of the present utility model; Figure 2 which is a schematic structural diagram of the docking end provided by the embodiment of the present utility model; Figure 3 which is a schematic structural diagram of the connection end provided by the embodiment of the present utility model; Figure 4 which is a schematic structural diagram of the fluid connection device provided by the embodiment of the present utility model; Figure 5 which is a schematic cross-sectional structure diagram of the fluid connection device provided by the embodiment of the present utility model; Figure 6 which is a schematic structural diagram of the operation structure provided by the embodiment of the present utility model.
[0033] In some embodiments, a fluid connection device is provided. In related embodiments, without clear limitation, the fluid connection device can be understood as a fluid connector, including a mating connection end and a docking end; of course, the fluid connection device can also be understood as the connection end of a fluid connector.
[0034] In some embodiments, the fluid connection device includes a first valve seat 1, a first valve 2, a locking member 3, and a limiting shoulder 4. Generally, the first valve 2 and the first valve seat 1 are provided at the connection end, and the locking member 3 can be provided at the docking end or the connection end; similarly, the limiting shoulder 4 can be provided at the docking end or the connection end.
[0035] In some embodiments, the first valve 2 is movably provided on the first valve seat 1 to open and close the communication channel 5 on the first valve seat 1. When the communication channel 5 is opened, it can communicate with the communication channel 5 on other connectors to allow fluid to flow through, and when the communication channel 5 is closed, it cannot communicate with the communication channel 5 on other connectors to prevent fluid from flowing through. The way the first valve 2 moves can be sliding, rotating, etc., which can be specifically set according to needs.
[0036] In some embodiments, the locking member 3 can be moved to the locking position, generally driven by the elastic device 7 to move to the locking position. When the first valve 2 moves relative to the first valve seat 1 to a preset position, the locking member 3 can move to the locking position to prevent the first valve 2 from moving relative to the first valve seat 1, so as to lock the first valve 2, and then keep the first valve 2 at the current preset position. The locking member 3 enters the locking position to lock the movement of the first valve 2, which can be achieved by the pin-hole fit, or meshing, or other means of the locking member 3. It should also be noted that preventing the first valve 2 from moving relative to the first valve seat 1 can be directly carried out between the first valve 2 and the first valve seat 1, or between other structures fixed to the above two, so as to indirectly prevent the relative movement of the first valve 2 and the first valve seat 1.
[0037] In some embodiments, the limiting shoulder 4 is used to limit the locking member 3 to prevent it from moving towards the locking position during at least part of the movement when the first valve 2 is out of the preset position, and can release the limit when the first valve 2 moves relative to the first valve seat 1 to the preset position, so that the locking member 3 can move to the locking position. It should be noted that no matter where the limiting shoulder 4 is installed, it is necessary to ensure that during the movement of the first valve 2 relative to the first valve seat 1, the limiting shoulder 4 moves relative to the locking member 3 to impose a constraint on the locking member 3. Specifically, to better achieve this effect, generally the limiting shoulder 4 is a limiting protrusion, which forms an abutting relationship with the locking member 3 during at least part of the movement when the first valve 2 is out of the preset position, so as to prevent the locking member 3 from entering the locking position or moving towards the locking position; while when the first valve 2 moves to the preset position, the constraint can be released at this time, so that the locking member 3 can enter the locking position.
[0038] In some embodiments, when using the fluid connection device, during application, when the first valve 2 moves to the preset position, at this time the limiting shoulder 4 does not impose a constraint, so that the locking member 3 can enter the locking position to prevent the first valve 2 from rotating relative to the second valve seat 10, so as to keep the first valve 2 at the preset position, such as the closed position or the open position. During the movement out of the preset position, for the sake of avoidance, interference, etc., at this time the limiting shoulder 4 will limit the locking member 3 to prevent the locking member 3 from moving towards the locking position, so as to release the interference. Through the above analysis, it can be found that by adding the setting of the limiting shoulder 4, the locking member 3 can freely move to the locking position at the preset position, while being interfered by the limiting shoulder 4 during part of the movement out of the preset position, so as to avoid the convex part of the locking member 3 from causing interference. In summary, the fluid connection device can effectively solve the problem of interference of the locking member 3 outside the preset position.
[0039] In some technical solutions, it is considered that the first valve 2 can move to a closed position to close the connecting channel 5 on the first valve seat 1, and can move to an open position to open the connecting channel 5 on the first valve seat 1, and the above-mentioned closed position is a preset position and / or the open position is a preset position.
[0040] In some embodiments, generally speaking, the locking member 3 can be a locking pin, and correspondingly, a locking hole 6 matching the locking member 3 can also be provided. The locking member 3 and the locking hole 6 can be respectively provided on the first valve 2 and the first valve seat 1, or in other relatively fixed structures to constrain the relative position relationship between the first valve 2 and the first valve seat 1.
[0041] When the first valve 2 moves to the preset position relative to the first valve seat 1, the locking hole 6 is aligned with the locking member 3. At this time, the locking member 3 can enter the locking hole 6 under the push of the elastic device 7, and then the locking member 3 enters the locking position to limit the movement of the first valve 2. When there are multiple preset positions, multiple locking holes 6 can be correspondingly provided, and of course some locking holes 6 can also be reused for other purposes.
[0042] In some embodiments, specifically, a locking hole 6 may be provided on the first valve 2, and a locking member 3 may be provided on the first valve seat 1, so that the locking member 3 may be movably installed on the first valve seat 1 along a moving direction perpendicular to the moving direction of the first valve 2, and abut against the first valve seat 1 through an elastic device 7. Specifically, the first valve 2 is rotated relative to the first valve seat 1 to achieve opening and closing, and the moving direction of the locking member 3 is in the axial direction of the first valve 2, and is generally provided at the edge of the first valve 2, so as to be eccentrically provided with the axis of the first valve 2. The elastic device 7 may be a spring, such as a compression spring, and of course, an elastomer or other elastic device 7 may also be used.
[0043] Generally speaking, the locking member 3 has an exposed operating portion 14, and the operating portion is connected to the locking member 3 body through a handle, and the handle is arranged through the first valve seat 1. In addition, a stop shoulder can be arranged on the first valve seat 1, so that after the locking member 3 exits the locking position, the locking member 3 can rotate to engage with the stop shoulder to achieve position limiting. A guiding slope is also arranged on the rear side of the stop shoulder or on the rear side of the handle, so that when the handle moves backward, the guide slope guides the locking rotation to stagger with the stop shoulder so that it can enter and extend. Of course, it can also be achieved in other ways.
[0044] In some embodiments, specifically, the side of the first valve 2 facing the locking member 3 may have a hole 8 that is offset from the locking hole 6. Additionally, the limiting shoulder 4 is configured to limit the locking member 3 during the process of the locking member 3 passing through the hole 8 to prevent the locking member 3 from moving towards the locking position, so that the locking member 3 is disengaged from the locking position. By means of the limiting shoulder 4, the restriction of the hole 8 on the locking member 3 can be lifted. The aforementioned hole 8 can be a weight-reducing hole 8 or a hole 8 for accommodating other components, such as an accommodating groove.
[0045] In some embodiments, specifically, the fluid connection device may include a connection end and a docking end that are docked with each other, where the connection end has a first valve 2 and a first valve seat 1. The corresponding structure of the docking end is configured to drive the first valve 2 to perform opening and closing activities, and a limiting shoulder 4 is provided on the corresponding structure. Of course, the limiting shoulder 4 can also be provided on the first valve 2, but considering the narrow space at the first valve 2. By providing it on the docking end, the problem of narrow space can be avoided. Further, the corresponding structure can also be used to complete a snap connection with the first valve 2 or the first valve seat 1.
[0046] In some embodiments, the fluid connection device can be the connection end, and the connection end is provided with a first valve 2 and a first valve seat 1. At this time: the limiting shoulder 4 can be provided on the first valve 2, and the corresponding locking hole 6 is also provided on the first valve 2, while the locking member 3 is provided on the first valve seat 1; of course, it can also be that the limiting shoulder 4 is provided on the first valve seat 1, the corresponding locking hole 6 is also provided on the first valve seat 1, and the locking member 3 is provided on the first valve 2.
[0047] In some embodiments, when there is a docking end, the docking end can be provided only with a communication channel 5 for docking with the connection end. At this time, the docking end may not be provided with a valve or a valve seat. However, for the convenience of operation, it is preferred that the docking end is also provided with a second valve 9 and a second valve seat 10, where the second valve 9 is movably arranged on the second valve seat 10 to open and close the communication channel 5 on the second valve seat 10.
[0048] An operating structure 15 that is relatively fixed to the second valve 9 is provided on the outer side of the second valve seat 10. The second valve 9 or the operating structure 15 is the corresponding structure, and a limiting shoulder 4 is provided.
[0049] A pushing portion is provided on the second valve 9 or the operating structure 15 to push the first valve 2 to rotate synchronously.
[0050] In some embodiments, the second valve seat 10 can be the corresponding structure, and a limiting shoulder 4 is provided on the second valve seat 10. At this time, the second valve seat 10 is configured to push the first valve 2 to rotate to keep synchronous rotation with the first valve 2.
[0051] In some embodiments, a hook 11 may be provided on the docking end, and a slot 12 for rotatably engaging with the hook 11 is provided on the first valve 2 to achieve the engagement therebetween. The slot 12 has an opening 13 on the side away from the docking end for accommodating the hook portion of the hook 11, and at least one slot 12 is the above-mentioned hole 8. When the hook portion moves in the opening 13, there will always be a part of the space that cannot be filled, and at this time, an interference locking member cavity will be formed.
[0052] In some embodiments, the second valve 9 may be provided with the hook 11 so that a rotational engagement is formed between the second valve 9 and the first valve 2. Specifically, the hook 11 may include a handle portion and a hook portion protruding circumferentially along the axis of rotation of the first valve 2, and the protruding direction is the same as the above-mentioned pushing direction. The hook portion constitutes a locking portion so that the locking portion rotates circumferentially to achieve rotational engagement. The corresponding slot 12 is for the hook 11 to extend along the axis of rotation, and then the hook 11 rotates relative to the slot 12 around the axis of rotation so that the locking portion rotates to be opposite to the shoulder, so as to achieve abutment in the extending direction of the axis of rotation to prevent separation in the docking direction. Specifically, at one end of the slot 12 in the direction away from the docking end in the slot depth direction, a shoulder is formed on the front side in the pushing direction, so that after the hook 11 enters the slot 12 and moves along the pushing direction, the hook portion will enter the end edge of the slot 12 at the end in the direction away from the docking end in the slot depth direction to achieve abutment.
[0053] In some embodiments, the first valve 2 may be rotatably mounted on the first valve seat 1, and the second valve 9 may be rotatably mounted on the second valve seat 10. Correspondingly, the operating structure 15 may be a sleeve sleeved on the second valve seat 10.
[0054] In some embodiments, during use, the docking end and the connecting end move relative to each other in the axial direction. Correspondingly, the second valve 9 moves axially relative to the first valve 2 so that the hook portion of the hook 11 passes over the slot 12. Then, by driving the operating structure 15 to rotate, the second valve 9 is driven to rotate relative to the first valve 2 to complete the abutment of the hook 11 and the end of the slot 12, axially locking to achieve the engagement. Further, the hook handle of the hook 11 will abut against one end of the slot 12 to form a pushing relationship, so that the second valve 9 continues to rotate and can drive the first valve 2 to continue to rotate, so that the first valve 2 and the second valve 9 are opened synchronously. Before the rotational opening, during at least a period of rotation, the limiting shoulder 4 on the operating structure 15 abuts against the operating portion 14 on the locking member 3 to prevent the locking member 3 from protruding. After passing over the corresponding opening 13, the locking member 3 is released through the guiding slope 16. At this time, the locking member 3 may still be limited by the first valve 2 so that it cannot continue to rotate.
[0055] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other.
[0056] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A fluid connection device, characterized in that: include: A first valve seat (1); A first valve (2) movably disposed on the first valve seat (1) to open and close a communication channel (5) on the first valve seat (1); a locking member (3) movable to a locking position to prevent the first valve (2) from moving relative to the first valve seat (1); A limiting shoulder (4) is used to limit the locking member (3) to prevent the locking member (3) from moving toward the locking position during at least part of the movement of the first valve (2) out of the preset position, and to release the limiting so that the locking member (3) can move to the locking position when the first valve (2) moves to the preset position relative to the first valve seat (1).
2. The fluid connection device according to claim 1, characterized in that: The first valve (2) can move to a closed position to close the communication channel on the first valve seat (1), and can move to an open position to open the communication channel (5) on the first valve seat (1), the closed position being the preset position and / or the open position being the preset position.
3. The fluid connection device according to claim 2, characterized in that: It also comprises a locking hole (6) matched with the locking piece (3); when the first valve (2) moves to a preset position relative to the first valve seat (1), the locking hole (6) is aligned with the locking piece (3).
4. The fluid connection device according to claim 3, characterized in that: The first valve (2) is provided with the locking hole (6), the first valve seat (1) is provided with a locking piece (3), the locking piece (3) is movably mounted on the first valve seat (1) along a moving direction perpendicular to the moving direction of the first valve (2), and is abutted against the first valve seat (1) via an elastic device (7).
5. The fluid connection device according to claim 4, characterized in that: The first valve (2) has a hole (8) on the side facing the locking member (3) which is staggered with the locking hole (6), and the limiting shoulder (4) is used to limit the locking member (3) when the locking member (3) passes through the hole (8) to prevent the locking member (3) from moving toward the locking position, so that the locking member (3) is disengaged from the locking position.
6. The fluid connection device according to claim 5, characterized in that: It comprises a connecting end and a butt joint end that are butt jointed with each other, the connecting end having the first valve (2) and the first valve seat (1); the corresponding structure of the butt joint end is used to drive the first valve (2) to realize opening and closing activities, and the corresponding structure is provided with the limiting shoulder (4).
7. The fluid connection device according to claim 6, characterized in that: The docking end comprises a second valve (9) and a second valve seat (10); the second valve (9) is movably arranged on the second valve seat (10) to open and close the connecting passage (5) on the second valve seat (10); an operating structure (15) fixed relative to the second valve (9) is arranged on the outer side of the second valve seat (10); the second valve (9) or the operating structure (15) is the corresponding structure.
8. The fluid connection device according to claim 7, characterized in that: A hook (11) is provided on the butt end, and the first valve (2) is provided with a slot (12) rotatably engaged with the hook (11), and the slot (12) has a slot (13) for accommodating a hook portion of the hook (11) on a side away from the butt end, and at least one of the slots (13) is the hole (8).
9. The fluid connection device according to claim 8, characterized in that: The second valve (9) is provided with the hook (11).
10. The fluid connection device according to claim 9, characterized in that: The first valve (2) is rotatably mounted on the first valve seat (1), and the second valve (9) is rotatably mounted on the second valve seat (10); the operating structure (15) is a sleeve that is sleeved on the second valve seat (10).