Fluid connector and connecting end thereof

Abstract

The invention discloses a connecting end of a fluid connector, which comprises a valve body, a valve core and an operating handle, and further comprises a lock bead, a locking ball and a locking device, which are all mounted on the operating handle, and when the lock bead is prevented from rolling out of a containing groove, the lock bead can prevent the operating handle from moving relative to the valve body; the lock pin can move to an abutting position to prevent the lock bead from retreating from the containing groove, and can move to an unlocking position to relieve the blocking of the lock bead, so that the valve element can move relative to the valve body; one end of the operating pin is exposed out of the operating handle to serve as an operating end, the other end of the operating pin is used for abutting against the lock pin, and the moving direction of the operating pin and the moving direction of the lock pin are arranged in a crossed mode so that the lock pin can be pushed to retreat from the abutting position to move to the unlocking position during pressing. The connecting end can effectively solve the problem that the unlocking operation of the operating handle is inconvenient. The invention further discloses a fluid connector comprising the connecting end.

Description

Technical Field

[0001] The present invention relates to the technical field of fluid pipeline connection, and more particularly to a connecting end of a fluid connector, and also to a fluid connector comprising the connecting end. Background Art

[0002] A ball valve generally needs to be provided with an operating portion for operating the valve core to rotate. The operating portion rotates coaxially with the valve core, and the operating portion is such as a handle.

[0003] Generally, for operational safety, a lock pin is required on the handle. The lock pin can move to a locked position and an unlocked position. When the lock pin moves to the locked position, it directly or indirectly prevents the operating portion from rotating relative to the valve body, thereby preventing the valve core from rotating. At this time, the valve core is in the closed position and / or the open position. When the lock pin moves to the unlocked position, the restriction on the valve body can be released. In the process of realizing the invention, the inventors found that there are at least the following technical problems in the prior art: the lock pin is generally unlocked when it moves inward, but abuts when it moves outward, which makes operation very inconvenient.

[0004] In summary, how to effectively solve the problem of inconvenient unlocking of the operating handle is a problem that currently needs to be solved urgently by those skilled in the art. Summary of the Invention

[0005] In view of this, the first object of the present invention is to provide a connecting end of a fluid connector, which can effectively solve the problem of inconvenient unlocking operation of the operating handle. The second object of the present invention is to provide a fluid connector including the above-mentioned connecting end.

[0006] In order to achieve the above first object, the present invention provides the following technical solutions:

[0007] A connecting end of a fluid connector includes a valve body, a valve core, and an operating handle. The operating handle is rotatably mounted on the valve body to drive the valve core to rotate to achieve opening and closing. The valve body is provided with a receiving groove and further includes:

[0008] a locking ball, which can prevent the operating handle from moving relative to the valve body when the locking ball is prevented from rolling out of the receiving groove;

[0009] a lock pin, movable to an abutting position to prevent the lock ball from exiting the receiving groove, and movable to an unlocking position to release the blockage of the lock ball, so that the valve core can move relative to the valve body;

[0010] An operating pin, one end of which is exposed from the operating handle and is set as the operating end, and the other end is used to abut against the locking pin. The moving direction of the operating pin is arranged to cross the moving direction of the locking pin, so that when pressed, the locking pin can be pushed out of the abutting position to move to the unlocking position.

[0011] In the upper connecting end, when unlocking is required, the operator holds the operating handle, and uses one finger of the hand holding the operating handle to apply pressing pressure to the operating pin, so that the operating pin transmits a corresponding force to the lock pin, so that the lock pin can move from the abutment position to the unlocking position, thereby releasing the restriction on the lock ball. After the restriction on the lock ball is released, the lock ball can roll out of the receiving groove to unlock the movement of the operating handle. In the above-mentioned connecting end, through a series of limiters, that is, the lock ball, the lock pin and the limit pin cooperate, so that the operating handle can be unlocked by pressing, making the unlocking operation of the operating handle convenient and simple. In summary, this connecting end can effectively solve the problem of inconvenient unlocking operation of the operating handle.

[0012] In some technical solutions, the operating handle is a plate-like structure perpendicular to the valve core rotation axis; one side of the lock pin has an abutment slope, and when the lock pin moves to the abutment position, the abutment slope is used to abut against one side of the lock ball to prevent the lock ball from escaping from the accommodating groove; the lock pin and the operating pin are both slidably installed on the operating handle along a direction perpendicular to the valve core rotation axis.

[0013] In some technical solutions, when the locking pin is in the abutting position, the abutting slope abuts against the side of the lock ball away from the accommodating groove, and in the moving direction of the locking pin, the abutting slope abuts against one side of the lock ball.

[0014] In some technical solutions, one end of the operating handle is rotatably connected to the valve body, and the other end has an operating pin exposed on the side surface of the rotation direction; an arc groove is provided on the valve body, and the accommodating grooves are provided at both ends of the arc groove to respectively correspond to the operating handle rotating to the closed position where the valve core is closed and rotating to the open position where the valve core is opened.

[0015] In some technical solutions, a limit pin is also included, which can move in a direction intersecting with the moving direction of the lock pin, so that when the lock pin is in the abutment position, it can move to the limit position to form a limiting relationship with the lock pin to prevent the lock pin from leaving the abutment position; the operating pin can move in a direction intersecting with the moving direction of the lock pin, so that in the process of triggering the movement to the operating position, after pushing the limit pin to move to exit the limit position, the lock pin can move to the unlocking position and prevent the lock pin from exiting the unlocking position.

[0016] In some technical solutions, the limit pin is provided with a base portion and a first limit portion, the first limit portion protruding from one side of the base portion along the movable direction of the limit pin, and being used to abut against the first limit surface of the lock pin to prevent the lock pin from disengaging from the abutting position; the operating pin includes a pushing portion and a second limit portion, the pushing portion abuts against the base portion and is arranged parallel to the first limit portion along the sliding direction of the lock pin; the second limit portion protrudes from the side of the pushing portion away from the first limit portion, and is used to abut against the second limit surface of the lock pin to prevent the lock pin from disengaging from the unlocking position; the first limit surface and the second limit surface are arranged opposite to each other, and the first limit portion and the second limit portion are staggered along the movable direction of the limit pin.

[0017] In some technical solutions, the operating handle is provided with a mounting slot and a cover plate, the base portion is slidably fitted in the mounting slot and can be installed into the mounting slot from the notch of the mounting slot; the lock pin is transversely passed through the mounting slot so that the first limit surface and the second limit surface are respectively located on both sides of the mounting slot; the cover plate is fixedly installed at the notch of the mounting slot, and the cover plate has a mounting hole that slides with the operating pin, and the inner side of the cover plate abuts against the shoulder portion on the operating pin to prevent the operating pin from detaching from the mounting slot; the movable direction of the limit pin is the same as the movable direction of the operating pin, and both are arranged perpendicular to the movable direction of the lock pin.

[0018] In some technical solutions, the operating pin has a first limiting portion and a second limiting portion staggered along the movable direction of the locking pin, and the first limiting portion and the second limiting portion are staggered along the movable direction of the operating pin; the locking pin has a first limiting surface and a second limiting surface opposite to each other;

[0019] When the operating pin moves to the second position, the first limiting portion is located between the first limiting surface and the second limiting surface, and its limiting wall surface abuts against the first limiting surface, so as to prevent the locking pin from leaving the abutting position;

[0020] When the operating pin moves to the first position, the second limiting portion is located between the first limiting surface and the second limiting surface, and its limiting wall surface abuts against the second limiting surface to prevent the locking pin from leaving the unlocking position.

[0021] In some technical solutions, L=DW, where L is the distance that the locking pin moves from the abutment position to the unlocking position, D is the distance between the limiting wall of the first limiting part and the limiting wall of the second limiting part, and W is the distance between the first limiting surface and the second limiting surface.

[0022] In some technical solutions, in the movable direction of the locking pin, the width of the first limiting portion and the width of the second limiting portion are both equal to the distance between the first limiting surface and the second limiting surface;

[0023] One end of the limiting wall surface of the first limiting portion close to the second limiting portion has a first guiding inclined surface extending toward the second limiting portion;

[0024] An end of the limiting wall surface of the second limiting portion close to the first limiting portion has a second guiding inclined surface extending toward the first limiting portion;

[0025] The first guiding inclined surface and the second guiding inclined surface are staggered in the movable direction of the operating pin.

[0026] In some technical solutions, the operating pin includes a cylindrical portion, and the axial direction of the cylindrical portion is consistent with the moving direction of the operating pin; along the moving direction of the locking pin, one side of a section of the cylindrical portion is removed by a portion to form the first limiting portion, and the other side of another section of the cylindrical portion is removed by a portion to form the second limiting portion.

[0027] In some technical solutions, the locking pin has a slot, and the slot walls on two sides away from each other in the sliding direction of the locking pin are respectively the first limiting surface and the second limiting surface;

[0028] The locking pin includes a limiting handle, and the limiting handle has the slot on both sides opposite to each other; a second slot is formed on the cylindrical portion to cooperate with the limiting handle, and a first limiting portion and a second limiting portion are formed on both sides of the second slot; a cylindrical hole is provided to cooperate with the cylindrical portion, and the orifice of the cylindrical hole has a plastically deformed locking portion to prevent the operating pin from escaping from the cylindrical hole.

[0029] In some technical solutions, a first elastic device is further included, which abuts against the locking pin to prevent the locking pin from disengaging from the abutting position; and / or a second elastic device is further included, which abuts against the operating pin to prevent the operating pin from entering the first position.

[0030] In some technical solutions, the operating handle has a cylindrical hole that matches the cylindrical portion, and the opening of the cylindrical hole has a plastically deformed locking portion to prevent the operating pin from escaping from the cylindrical hole.

[0031] To achieve the second objective, the present invention further provides a fluid connector comprising any of the aforementioned connecting ends, wherein the valve bodies of the two connecting ends are rotatably engaged. Since the aforementioned connecting ends have the aforementioned technical effects, a fluid connector having the connecting ends should also have corresponding technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 A schematic structural diagram of the combination of the pin bodies of the first pin group of the switch valve provided by an embodiment of the present invention;

[0034] Figure 2 A schematic diagram of the change in position of each pin group when the lock pin in the first pin group provided by an embodiment of the present invention moves from the abutment position to the unlocking position;

[0035] Figure 3 A schematic cross-sectional view of the operating handle of an on-off valve having the first pin assembly provided by an embodiment of the present invention (with the locking portion unlocked);

[0036] Figure 4 A schematic structural diagram of a lock pin of a first pin assembly provided by an embodiment of the present invention;

[0037] Figure 5 A schematic structural diagram of an operating pin of a first pin assembly provided by an embodiment of the present invention;

[0038] Figure 6 A schematic diagram of an exploded structure of a switch valve with a first pin assembly provided by an embodiment of the present invention;

[0039] Figure 7 A schematic structural diagram of a switch valve with a first pin assembly provided by an embodiment of the present invention;

[0040] Figure 8 A schematic structural diagram of a fluid connector with a first pin set provided by an embodiment of the present invention.

[0041] Figure 9 A schematic diagram of an exploded structure of an operating handle of a switch valve having a second pin assembly provided by an embodiment of the present invention;

[0042] Figure 10 A schematic diagram of the structure of the cooperation of the respective pin groups when the locking pin of the second pin group provided by an embodiment of the present invention is in the abutment position;

[0043] Figure 11 A schematic structural diagram of a lock pin of a second pin assembly provided by an embodiment of the present invention;

[0044] Figure 12 A schematic structural diagram of a limit pin of a second pin assembly provided in an embodiment of the present invention;

[0045] Figure 13 A schematic structural diagram of the operating pin of the second pin assembly provided in an embodiment of the present invention.

[0046] The following are marked in the accompanying drawings:

[0047] Valve body 1, valve core 2, lock ball 3, lock pin 4, limit pin 5, operating pin 6, operating handle 7, first elastic device 8, second elastic device 9, first limit part 10, second limit part 11;

[0048] Accommodating groove 1-1, connecting channel 1-2, arc groove 1-3;

[0049] A first limiting surface 4-1, a second limiting surface 4-2, a slot 4-3, a limiting handle 4-4, and an abutting inclined surface 4-5;

[0050] Base portion 5-1, first slot 5-2;

[0051] Pushing portion 6-1, second slot 6-2, first guide slope 6-3, second guide slope 6-4, cylindrical portion 6-5;

[0052] Locking part 7-1, cylindrical hole 7-2, mounting groove 7-3, cover plate 7-4

[0053] Abutment position a, unlocking position b;

[0054] First position c, second position d. DETAILED DESCRIPTION

[0055] An embodiment of the present invention discloses a connecting end of a fluid connector, which effectively solves the problem of inconvenient unlocking operation of an operating handle.

[0056] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0057] See also Figures 1-13 , Figure 1 A schematic structural diagram of the combination of the pin bodies of the first pin group of the switch valve provided by an embodiment of the present invention; Figure 2 A schematic diagram of the change in position of each pin group when the lock pin in the first pin group provided by an embodiment of the present invention moves from the abutment position to the unlocking position; Figure 3 A schematic cross-sectional view of the operating handle of an on-off valve having the first pin assembly provided by an embodiment of the present invention (with the locking portion unlocked); Figure 4A schematic structural diagram of a lock pin of a first pin assembly provided by an embodiment of the present invention; Figure 5 A schematic structural diagram of an operating pin of a first pin assembly provided by an embodiment of the present invention; Figure 6 A schematic diagram of an exploded structure of a switch valve with a first pin assembly provided by an embodiment of the present invention; Figure 7 A schematic structural diagram of a switch valve with a first pin assembly provided by an embodiment of the present invention; Figure 8 A schematic structural diagram of a fluid connector with a first pin set provided by an embodiment of the present invention. Figure 9 A schematic diagram of an exploded structure of an operating handle of a switch valve having a second pin assembly provided by an embodiment of the present invention; Figure 10 A schematic diagram of the structure of the cooperation of the respective pin groups when the locking pin of the second pin group provided by an embodiment of the present invention is in the abutment position; Figure 11 A schematic structural diagram of a lock pin of a second pin assembly provided by an embodiment of the present invention; Figure 12 A schematic structural diagram of a limit pin of a second pin assembly provided in an embodiment of the present invention; Figure 13 A schematic structural diagram of the operating pin of the second pin assembly provided in an embodiment of the present invention.

[0058] In some embodiments, a connection end is provided, which can be a ball valve, or of course a butterfly valve, etc., mainly including a valve body 1, a valve core 2, an operating handle 7, a locking ball 3, a locking pin 4 and an operating pin 6.

[0059] The valve body 1 is provided with a communication channel 1-2, and the valve core 2 is movably disposed in the communication channel 1-2 of the valve body 1 for opening and closing the communication channel 1-2. That is, the valve core 2 can move to at least an open position and a closed position. When moving to the closed position, it is blocked in the communication channel 1-2. When moving to the open position, it can connect the two ends of the communication channel 1-2, such as making way for the communication channel 1-2 or connecting its own through hole between the two ends of the communication channel 1-2. The movable form of the valve core 2 is not required. It can be opened by rotation or by translation and sliding. The specific opening method can be set as needed. The connecting end can serve as a joint of a fluid connector. In this case, one side of the valve body 1 has a connecting portion to form a detachable connection with the valve body 1 of the other connecting end. As shown in the accompanying drawings, the valve bodies 1 of the two connecting ends are rotatably connected. As shown in the accompanying drawings, when the connecting end is a ball valve, the valve core 2 is spherical or nearly spherical and is installed in the valve body 1 by rotating around its own axis.

[0060] The operating handle 7 is rotatably mounted on the valve body 1 to drive the valve core 2 to rotate to achieve opening and closing. The operating handle 7 and the valve core 2 can rotate coaxially or non-coaxially via a transmission structure.

[0061] The valve body 1 is provided with a receiving groove 1 - 1 , and the lock ball 3 , the lock pin 4 , the operating pin 6 and the limit pin 5 are all installed in the operating handle 7 .

[0062] The receiving groove 1-1 and the lock ball 3 are arranged in combination to form a combined locking structure. The unlocking and locking of the valve core 2 is achieved by whether the lock ball 3 can roll out of the receiving groove 1-1. Specifically, when the lock ball 3 is restricted from rolling out of the receiving groove 1-1, the lock ball 3 can prevent the operating handle 7 from moving relative to the valve body 1, so as to prevent the valve core 2 from moving to open and / or close the connecting channel 1-2 in the valve body 1. It is understandable that the lock ball 3 can be set to control the movement of the valve core 2 only in the scenario of opening or closing the connecting channel 1-2, or the lock ball 3 can be set to control the movement of the valve core 2 in the scenarios of opening and closing the connecting channel 1-2. It should be noted that the lock ball 3 can be a sphere, a cylinder, or an olive shape, whichever is greater, so long as it can roll out of the receiving groove 1-1.

[0063] When the lock ball 3 is restricted from rolling out of the receiving groove 1-1, the lock ball 3 is limited, which can prevent the operating handle 7 from moving relative to the valve body 1. Taking the accompanying figure as an example, the valve body 1 is provided with a receiving groove 1-1, and the lock ball 3 is arranged in the corresponding hole of the operating handle 7, which can be exposed and retracted into the corresponding hole. When the corresponding hole is aligned with the receiving groove 1-1, the lock ball 3 can be exposed to enter the receiving groove 1-1. At this time, if the lock ball 3 is prevented from retracting, that is, preventing the lock ball 3 from exiting the receiving groove 1-1, the lock ball 3 abuts against the groove wall of the receiving groove 1-1 and the wall of the corresponding hole, thereby preventing the operating handle 7 from rotating relative to the valve body 1. When the restriction is released, as the operating handle 7 rotates, the wall of the corresponding hole or other structure can push the lock ball 3 to move out of the receiving groove 1-1, that is, the lock ball 3 is retracted, allowing the operating handle 7 to rotate relative to the valve body 1, thereby enabling the operating handle 7 to drive the valve core 2 to rotate to achieve opening and closing.

[0064] The lock pin 4 and the operating pin 6 are combined into a set of limiting components for limiting the lock ball 3, and both can be movably arranged on the operating handle 7. The movable mode is generally to move under sliding cooperation as shown in the accompanying drawings, and of course it can also be rotation formed under rotation cooperation.

[0065] The lock pin 4 is movably mounted on the operating handle 7 and can be moved to an abutment position a and an unlocking position b. When the lock ball 3 moves to the abutment position a, it prevents the lock ball 3 from exiting the receiving groove 1-1, for example, by abutting the lock ball 3 on a side away from the receiving groove 1-1 to prevent the lock ball 3 from escaping the receiving groove 1-1. When the lock ball 3 moves to the unlocking position b, the lock ball 3 is released from the blocking position, and the lock ball 3 no longer prevents the valve core 2 from moving relative to the valve body 1, allowing the valve core 2 to move relative to the valve body 1 to achieve opening and closing.

[0066] Specifically, the lock pin 4 can be a rod that slidably engages with a hole in the operating handle 7 to constrain the movement of the lock pin 4. The lock pin 4 can be moved to an abutting position a, where one end of the abutting end abuts the lock ball 3, preventing the lock ball 3 from rolling out of the receiving groove 1-1. The lock pin 4 can also be moved to an unlocking position b, where the abutting end moves away from the lock ball 3, releasing the blockage on the lock ball 3 and allowing the lock ball 3 to roll out of the receiving groove 1-1. In the absence of other structural constraints, when the operating handle 7 is rotated, the operating handle 7 or other structure can push the lock ball 3 out of the receiving groove 1-1.

[0067] One end of the operating pin 6 is exposed from the operating handle 7 and is provided as an operating end, while the other end is used to abut against the lock pin 4. The operating pin 6 is arranged to move in a direction that intersects with the direction of movement of the lock pin 4, so that when pressed, it can push the lock pin 4 out of the abutment position a and move to the unlocked position b. In other words, when the operating pin 6 is pressed against the operating handle 7, the operating pin 6 moves, driving the lock pin 4 to move, so that the lock pin 4 moves from the abutment position a to the unlocked position b.

[0068] In the upper connection end, when unlocking is required, the operator holds the operating handle 7, and uses one finger of the hand holding the operating handle 7 to apply pressing pressure to the operating pin 6, so that the operating pin 6 transmits a corresponding force to the lock pin 4, so that the lock pin 4 can move from the abutment position a to the unlocking position b, so as to release the restriction on the lock ball 3. After the restriction on the lock ball 3 is released, the lock ball 3 can roll out of the accommodating groove 1-1, so as to achieve unlocking of the operating handle 7. In the above-mentioned connection end, through a series of limiters, that is, the lock ball 3, the lock pin 4 and the limit pin 5 cooperate, so that the operating handle 7 can be unlocked by pressing, making the unlocking operation of the operating handle 7 convenient and simple. In summary, this connection end can effectively solve the problem of inconvenient unlocking operation of the operating handle 7.

[0069] In some embodiments, in order to make the structure more compact, the operating handle is generally a plate-like structure perpendicular to the rotation axis of the valve core 2. In order to adapt to the installation of the plate-like structure and to ensure strength as much as possible, the lock pin 4 can be provided with an abutting inclined surface 4-5 on one side. When the lock pin 4 moves to the abutting position a, the abutting inclined surface 4-5 is used to abut against one side of the lock ball 3 to prevent the lock ball 3 from escaping from the receiving groove 1-1, so as to compress the space as much as possible in the thickness direction of the operating handle 7. Through the above arrangement, when the lock ball 3 retracts, the lock ball 3 can retreat as much as possible to approach the other side of the plate. At this time, the diameter of the lock ball 3 can be larger, thereby ensuring strength.

[0070] Specifically, one side panel surface of the operating handle 7 in the thickness direction is the inner panel surface, which is arranged close to the valve body 1, and the other side panel surface in the thickness direction is the outer panel surface. The inner panel surface has corresponding holes so that the lock ball 3 can be exposed on the inner side of the inner panel surface. The abutting inclined surface 4-5 of the lock pin 4 is located on the outer side of the lock ball 3 when abutting, and is located on the side of the lock ball 3 in the sliding direction of the lock pin 4, so that the lock ball 3 and the lock pin 4 are arranged to overlap as much as possible in the inner and outer directions, thereby reducing the thickness direction dimension of the operating handle 7.

[0071] At this time, the lock pin 4 and the operating pin 6 are both slidably installed in the operating handle along a direction perpendicular to the rotation axis of the valve core 2, that is, slidably installed in the operating handle 7 along the extension direction of the operating handle 7 (perpendicular to the plate thickness direction).

[0072] In some embodiments, in order to further reduce the thickness dimension, when the lock pin 4 is in the abutment position a, the abutment slope 4-5 abuts against the side of the lock ball 3 away from the receiving groove 1-1, and in the movable direction of the lock pin 4, the abutment slope 4-5 abuts against one side of the lock ball 3. With the notch of the receiving groove 1-1 facing upward and the lock pin 4 moving forward from the abutment position a to the unlocking position b, the abutment slope 4-5 is used to abut the front upper side of the lock ball 3. At this time, when the lock ball 3 is in the receiving groove 1-1, the upper half of the lock ball 3 is arranged at the same height as the lock pin 4. In this case, the lock ball 3 is a spherical ball.

[0073] In some embodiments, to facilitate pressing, one end of the operating handle 7 can be pivotally connected to the valve body 1, while the other end has an exposed operating pin 6 on the side facing the direction of rotation. This allows for easy access to the operating pin 6 by applying force in the direction of rotation. Alternatively, the operating pin 6 can be exposed on the side of the operating handle 7 away from the rotation axis to prevent accidental operation. Alternatively, the operating pin 6 can be exposed on the side of the operating handle 7 away from the valve body 1 to facilitate operation. In this case, the operating pin 6 and the lock pin 4 will change positions accordingly.

[0074] In some embodiments, the valve body 1 may be provided with an arcuate groove 1-3, wherein both ends of the arcuate groove 1-3 are provided with a receiving groove 1-1, respectively corresponding to the closed position when the operating handle 7 is rotated to close the valve core 2 and the open position when the valve core 2 is rotated to open the valve core 2. In this way, when the operating handle 7 is rotated to close the valve core 2, one receiving groove 1-1 is opposite to the lock ball 3; and when the operating handle 7 is rotated to open the valve core 2, the other receiving groove 1-1 is opposite to the lock ball 3.

[0075] In some embodiments, when the lock pin 4 is in the abutment position a, if the abutment direction of the lock pin 4 against the lock ball 3 is consistent with the direction toward the accommodating groove 1-1, then the abutment force between the lock pin 4 and the lock ball 3 cannot push the lock pin 4 out of the abutment position a, so that the lock pin 4 can be stably maintained in the abutment position a.

[0076] Since the abutment slopes 4-5 are provided so that the abutment force forms a component in the direction in which the lock pin 4 moves out of the abutment position a, a limit portion is required to prevent the lock pin 4 from exiting the abutment position a. The limit portion can be integrated with the operating pin 6 or provided as a separate structure, such as the limit pin 5 described below.

[0077] Specifically, a first limiting portion 10 and a second limiting portion 11 may be provided to limit the lock pin 4 when it is in the abutting position a and when it is in the unlocking position b, respectively. The first limiting portion 10 and the second limiting portion 11 may both be provided on the operating pin 6, or one may be provided on the operating pin 6 and the other provided on the additional limiting pin 5.

[0078] In some embodiments, as shown in the attached Figure 9-13 As shown, as mentioned above, in order to better limit the position, a limit pin 5 can be further provided.

[0079] The stop pin 5 is movable in a direction intersecting the movement direction of the lock pin 4, such as a perpendicular direction. This means that the movement direction of the stop pin 5 is perpendicular to the movement direction of the lock pin 4. When the lock pin 4 is in the abutment position a, the stop pin 5 is movable to a limit position, thereby forming a limit relationship with the lock pin 4 and preventing the lock pin 4 from disengaging from the abutment position a. This allows the stop pin 5 to stably maintain the lock pin 4 in the abutment position a, preventing the lock pin 4 from arbitrarily disengaging from the abutment position a, thereby more stably maintaining the valve core 2 in the open and / or closed positions.

[0080] The operating pin 6 can move along a direction intersecting the direction of movement of the lock pin 4, wherein the intersecting direction is, for example, a vertical direction, i.e., the direction of movement of the operating pin 6 is set perpendicular to the direction of movement of the lock pin 4. In the process of triggering the movement to the operating position, the operating pin 6 can push the limit pin 5 to move to exit the limit position, and then push the lock pin 4 to the unlocking position b, i.e., in the process of operating the operating pin 6, the limit pin 5 is first pushed to release the restriction on the lock pin 4, and then the lock pin 4 moves from the abutment position a to the unlocking position b, and prevents the lock pin 4 from exiting the unlocking position b. This can be achieved by pushing the operating pin 6, or by pushing other devices such as an elastic device. The operating end of the operating pin 6 can be exposed to facilitate the user's finger operation, or it can be triggered by other structures, such as when the two connecting ends are docked, the valve body 1 of the other connecting end pushes the operating pin 6 to move. It should be noted that the resetting of the operating pin 6 can be achieved by an elastic device, or by manual operation or pushing by other structures.

[0081] It should be noted that the moving direction of the operating pin 6 and the moving direction of the limit pin 5 can be the same as shown in the accompanying drawings. At this time, the operating pin 6 and the limit pin 5 can be in an abutting relationship or a relatively fixed relationship; or they can be vertically arranged. At this time, the moving direction of the operating pin 6, the moving direction of the limit pin 5 and the moving direction of the lock pin 4 are perpendicular to each other. At this time, the operating pin 6 and the limit pin 5 can offset each other through the inclined surface, so that when the moving directions intersect, the operating pin 6 can push the limit pin 5 to move along its own direction.

[0082] In the above-mentioned connection end, when it is necessary to unlock the valve core 2 during use, the operating pin 6 can be operated to move. The movement of the operating pin 6 will push the limit pin 5 out of the limit position, and then push the lock pin 4 out of the abutment position a to enter the unlocking position b. At this time, the lock ball 3 is no longer constrained and can exit the accommodating groove 1-1, thereby unlocking the lock ball 3. Without other constraints, the valve core 2 can move relative to the valve body 1. When it is necessary to restrict the movement of the valve core 2, the operating pin 6 is withdrawn from the current position and no longer constrains the lock pin 4 and the limit pin 5, so that the lock pin 4 can enter the abutment position a, and the limit pin 5 enters the limit position, again limiting the lock pin 4 to prevent the lock pin 4 from leaving the abutment position a. In the above-mentioned connecting end, the locking pin 4 is not limited at the abutment position a and the unlocking position b, but is instead achieved separately by the limiting pin 5 and the operating pin 6, and the operating pin 6 and the limiting pin 5 are linked so that the unlocking action of the locking pin 4 can be achieved by operating the operating pin 6 only, making the operation convenient, while the locking pin 4 is reliably locked, and the constraint requirements on the abutment relationship between the locking pin 4 and the lock ball 3 are reduced, without having to consider the direction of the abutment force between the two. In summary, this connecting end can effectively solve the problem of unreliable abutment between the locking pin 4 and the lock ball 3.

[0083] In some embodiments, the movable direction of the limit pin 5 can be the same as the movable direction of the operating pin 6, so that the two can form an abutting relationship. In this case, the limit pin 5 and the operating pin 6 can be two separate parts. In addition, the movable directions of the limit pin 5 and the operating pin 6 are both perpendicular to the movable direction of the lock pin 4 to form a better and more stable limiting relationship.

[0084] In some embodiments, the limit pin 5 can be provided with a base portion 5-1 and a first limit portion 10, wherein the first limit portion 10 protrudes from one side of the base portion 5-1 along the moving direction of the limit pin 5, and is used to abut the first limit surface 4-1 of the locking pin 4 to prevent the locking pin 4 from disengaging from the abutment position a.

[0085] The operating pin 6 includes a pushing portion 6-1 and a second limiting portion 11. The pushing portion 6-1 abuts against the base portion 5-1 and is arranged side by side with the first limiting portion 10 along the sliding direction of the locking pin 4, so that the first limiting portion 10 and the second limiting portion 11 are as close as possible in the moving direction of the operating pin 6.

[0086] The second limiting portion 11 is used to abut the second limiting surface 4-2 of the lock pin 4 to prevent the lock pin 4 from leaving the unlocking position b. It can protrude from the side of the pushing portion 6-1 away from the first limiting portion 10 so that the lock pin 4 can be limited to the unlocking position b. When the lock pin 4 moves to the abutting position a, the pushing portion 6-1 will not interfere with or prevent the lock pin 4 from moving to the abutting position a.

[0087] The first limiting surface 4-1 and the second limiting surface 4-2 are arranged opposite to each other, and the limiting wall surface of the first limiting part 10 and the limiting wall surface of the second limiting part 11 are arranged opposite to each other, and the first limiting part 10 and the second limiting part 11 are staggered along the moving direction of the limiting pin 5 to avoid mutual interference.

[0088] Specifically, L1 can be made equal to D1-W1, where L1 is the moving distance of the locking pin 4 from the abutment position a to the unlocking position b, D1 is the distance between the limiting wall of the first limiting part 10 and the limiting wall of the second limiting part 11, and W1 is the distance between the first limiting surface 4-1 and the second limiting surface 4-2.

[0089] In some embodiments, in order to facilitate the installation of the operating pin 6 and the limit pin 5, a mounting groove 7-3 and a cover plate 7-4 can be provided. As shown in the accompanying drawings, the operating pin 6 and the limit pin 5 are both installed on the operating handle 7. Then, correspondingly, a mounting groove 7-3 can be provided on the main body of the operating handle 7, and the cover plate 7-4 can be installed on the main body of the operating handle 7.

[0090] At this point, the base portion 5-1 can be slidably engaged with the mounting groove 7-3 and can be inserted into the mounting groove 7-3 through the notch of the mounting groove 7-3. The lock pin 4 is disposed transversely through the mounting groove 7-3, with the first limiting surface 4-1 and the second limiting surface 4-2 of the lock pin 4 located on either side of the mounting groove 7-3. Specifically, the wall of the mounting groove 7-3 can be provided with a mounting hole, with the outer end of the mounting hole extending to the side of the operating handle 7 and the inner end extending to the corresponding hole of the lock bead 3. A packaging member is disposed at the outer end of the mounting hole.

[0091] The cover plate 7-4 is fixedly mounted at the notch of the mounting slot 7-3. The cover plate 7-4 has a mounting hole that slidably fits the operating pin 6. After the operating pin 6 is installed in the mounting slot 7-3, the inner side of the cover plate 7-4 abuts against the shoulder on the operating pin 6 to prevent the operating pin 6 from falling out of the mounting slot 7-3. For example, the cover plate 7-4 can be screwed to the operating handle 7.

[0092] Of course, in addition to restricting the operating pin 6 in the installation groove 7-3 by means of the cover plate 7-4, the restriction may be achieved by means of a plastically deformed closing portion.

[0093] In some embodiments, in order to prevent the lock pin 4 from shaking randomly, a first elastic device 8 can be provided to abut against the lock pin 4 to prevent the lock pin 4 from leaving the abutment position a. Specifically, the first elastic device 8 can be provided between the above-mentioned package and the lock pin 4. The first elastic device 8 can be a spring or other elastic structure. When it is a spring, it can be sleeved on the outer end of the lock pin 4 and abut against the shoulder at the outer end of the lock pin 4 to maintain the stability of the overall structure.

[0094] In some embodiments, a second elastic device 9 is further included to abut against the limiting pin 5 to prevent the limiting pin 5 from moving out of the limiting position, thereby facilitating the reset of the operating pin 6. The second elastic device 9 can be installed at the bottom of the mounting slot 7-3, and the limiting pin 5 can be provided with a slotted hole that fits the end of the second elastic device 9 to better guide the deformation of the second elastic device 9.

[0095] The first elastic device 8 and the second elastic device 9 are provided. Its working process can be as follows: when the lock pin 4 needs to be unlocked, the operating pin 6 is operated to overcome the deformation force of the second elastic device 9 and push the limit pin 5 out of the limit position, and then the operating pin 6 continues to move to push the lock pin 4 to overcome the deformation force of the first elastic device 8, so that the lock pin 4 is separated from the abutment position a and enters the unlocking position b, thereby completing the unlocking of the lock pin 4; and when locking is required, the operating pin 6 is released, and under the action of the second elastic device 9, the operating pin 6 moves in the opposite direction until the second limiting portion 11 is separated from the second limiting surface 4-2, and the limit pin 5 enters, and under the action of the limit pin 5 and / or the first elastic device 8, the lock pin 4 moves in the opposite direction to enter from the unlocking position b to the abutment position a, at which time the limit pin 5 completely enters the limit position and is limited.

[0096] In some embodiments, in order to facilitate the provision of the above-mentioned first limiting surface 4-1 and second limiting surface 4-2, the lock pin 4 can be provided with a slot 4-3, wherein the slot 4-3 is provided with the first limiting surface 4-1 and the second limiting surface 4-2 respectively on both sides of the slot wall away from each other along the sliding direction of the lock pin 4. In order to facilitate the entry of the first limiting portion 10 and the second limiting portion 11, the first limiting surface 4-1 and the second limiting surface 4-2 are both provided with guiding inclined surfaces. When the lock pin 4 is in the contact position a, the pushing portion 6-1 and the first limiting portion 10 can be respectively extended into the slot 4-3 on both sides along the sliding direction of the operating pin 6, and are arranged side by side in the slot 4-3 along the sliding direction of the lock pin 4. For better limiting, the sum of the width of the pushing portion 6-1 and the width of the first limiting portion 10 can be made equal to the distance between the first limiting surface 4-1 and the second limiting surface 4-2, so that the side of the pushing portion 6-1 away from the first limiting portion 10 can be abutted against the second limiting surface 4-2.

[0097] Considering the size limitation, generally speaking, the closer the center planes of the operating pin 6, the locking pin 4 and the limiting pin 5 are, the better, and they can even be located on the same plane. The operating pin 6, the locking pin 4 and the limiting pin 5 are most stable when their force centers are at the center plane.

[0098] Based on this, it is preferred that the lock pin 4 includes a limiting handle 4-4, and the limiting handle 4-4 has slots 4-3 on both sides opposite to each other; at this time, a first slot 5-2 is formed on the limiting pin 5 to match the limiting handle 4-4, and a second slot 6-2 is formed on the operating pin 6 to match the limiting handle 4-4. The limiting pin 5 forms first limiting portions 10 on both sides of the first slot 5-2, respectively, with the first limiting surfaces 4-1 of the slots 4-3 on both sides respectively abutting against each other; of course, the first slot 5-2 can also extend to the base 5-1. The operating pin 6 forms second limiting portions 11 and a pushing portion 6-1 on both sides of the second slot 6-2, respectively, with the pushing portions 6-1 on both sides abutting against the base 5-1, and the second limiting portions 11 on both sides respectively abut against the second limiting surfaces 4-2 of the slots 4-3 on both sides.

[0099] At this time, the force centers of the operating pin 6, the limit pin 5 and the locking pin 4 are all at the center plane, or closer to the center plane, so that the force of each structure is more evenly and stably applied.

[0100] In some embodiments, as shown in the attached Figure 1-6 , the operating pin 6 can be integrated with the first limiting portion 10 and the second limiting portion 11 at the same time. Specifically, the operating pin 6 can move along the direction crossing the moving direction of the locking pin 4, and the operating pin 6 can move to the first position c and the second position d, wherein the crossing direction is such as the vertical direction, that is, the moving direction of the operating pin 6 is set perpendicular to the moving direction of the locking pin 4.

[0101] When the operating pin 6 moves from the first position c to the second position d, it enables the lock pin 4 to move to the abutment position a and prevents the lock pin 4 from exiting the abutment position a. The lock pin 4 can move from the unlocked position b to the abutment position a by being pushed by the operating pin 6, in which case the operating pin 6 and the lock pin 4 abut against each other via a first inclined surface, which is inclined relative to the direction of movement of the lock pin 4. Alternatively, the lock pin 4 can be pushed by other means, such as an elastic device, in which case it is sufficient for the operating pin 6 to not prevent the lock pin 4 from moving to the abutment position a.

[0102] When the operating pin 6 moves from the second position d to the first position c, it enables the lock pin 4 to move to the unlocked position b and prevents the lock pin 4 from exiting the unlocked position b. The lock pin 4 can move from the abutment position a to the unlocked position b: This can be achieved by the operating pin 6, in which case the operating pin 6 and the lock pin 4 are abutted by a second inclined surface, and the second inclined surface is inclined relative to the movement direction of the lock pin 4; it can also be achieved by other devices such as elastic devices, in which case it is sufficient for the operating pin 6 to not prevent the lock pin 4 from moving to the abutment position a. When both the first inclined surface and the second inclined surface are provided on the lock pin 4, they are arranged in opposite directions in the movement direction of the lock pin 4.

[0103] In the above-mentioned connection end, when it is necessary to unlock the valve core 2, the operating pin 6 can be operated to move to the second position d, so that the lock pin 4 disengages from the abutment position a and enters the unlocking position b. At this time, the lock ball 3 is no longer constrained and can exit the receiving groove 1-1, thereby unlocking the lock ball 3. Without other constraints, the valve core 2 can move relative to the valve body 1, and the operating pin 6 prevents the lock pin 4 from disengaging from the unlocking position b. When it is necessary to restrict the movement of the valve core 2, the operating pin 6 enters the first position c, so that the lock pin 4 can enter the abutment position a, and the lock pin 4 is limited to prevent the lock pin 4 from disengaging from the abutment position a. In the above-mentioned connection end, the position of the lock pin 4 is limited to the abutment position a and the unlocking position b, so as to ensure the stability of the position of the lock pin 4. The two positions are limited by a single operating pin 6, which can make the overall structure simpler and reduce the constraint requirements on the abutment relationship between the lock pin 4 and the lock ball 3, without considering the direction of the abutment force between the two. In summary, the connecting end can effectively solve the problem of unreliable abutment between the lock pin 4 and the lock ball 3 .

[0104] In some embodiments, the lock pin 4 is provided with a first limiting surface 4-1 and a second limiting surface 4-2, respectively, to cooperate with the first limiting portion 10 and the second limiting portion 11. Specifically, when the operating pin 6 moves to the first position c, the first limiting portion 10 is located between the first limiting surface 4-1 and the second limiting surface 4-2, and its limiting wall surface abuts against the first limiting surface 4-1, thereby preventing the lock pin 4 from disengaging from the abutting position a; when the operating pin 6 moves to the second position d, the second limiting portion 11 is located between the first limiting surface 4-1 and the second limiting surface 4-2, and its limiting wall surface abuts against the second limiting surface 4-2, thereby preventing the lock pin 4 from disengaging from the unlocking position b.

[0105] The specific arrangement of the first limiting portion 10 and the second limiting portion 11, as well as their contact relationship with the limiting surface, are not limited and can be set as needed. For example, if the first limiting surface 4-1 and the second limiting surface 4-2 are arranged to be opposite to each other or to be coplanar, the first limiting portion 10 and the second limiting portion 11 are arranged correspondingly.

[0106] As shown in the accompanying drawings, in a specific example, the first limiting surface 4-1 and the second limiting surface 4-2 are arranged relative to each other, and specifically, the operating pin 6 can have a first limiting portion 10 and a second limiting portion 11 staggered along the moving direction of the locking pin 4, and the first limiting portion 10 and the second limiting portion 11 are staggered along the moving direction of the operating pin 6.

[0107] At this time, L=DW, where L is the distance the lock pin 4 moves from the abutting position a to the unlocking position b, D is the distance between the limiting wall of the first limiting portion 10 and the limiting wall of the second limiting portion 11, and W is the distance between the first limiting surface 4-1 and the second limiting surface 4-2. This allows the lock pin 4 to move from the abutting position a to the unlocking position b from the moment the limiting wall of the first limiting portion 10 abuts against the first limiting surface 4-1 to the moment the limiting wall of the second limiting portion 11 abuts against the second limiting surface 4-2.

[0108] Through the above arrangement, the structure of the locking pin 4 is simpler. At this time, the limiting wall surface of the first limiting portion 10 and the limiting wall surface of the second limiting portion 11 can be arranged on both sides of the locking pin 4 away from each other.

[0109] In some embodiments, the width of the first limiting portion 10 and the width of the second limiting portion 11 in the movable direction of the lock pin 4 can be made equal to the distance between the first limiting surface 4-1 and the second limiting surface 4-2. This arrangement can increase the width of the first limiting portion 10 and the second limiting portion 11 to ensure strength, and can also make the position of the lock pin 4 more stable when in the abutment position a and the unlocking position b, preventing it from shaking.

[0110] In order to facilitate implementation and compress the space in the moving direction of the operating pin 6 at the same time, it is preferred that the limiting wall of the first limiting part 10 has a first guide slope 6-3 extending toward the second limiting part 11 at one end close to the second limiting part 11; correspondingly, the limiting wall of the second limiting part 11 has a second guide slope 6-4 extending toward the first limiting part 10 at one end close to the first limiting part 10.

[0111] The first guide slope 6-3 and the second guide slope 6-4 are staggered in the movable direction of the operating pin 6. Specifically, when the operating pin 6 moves from the first position c to the second position d, the second limiting surface 4-2 and the second limiting portion 11 are first disengaged, then the second guide slope 6-4 and the second inclined surface are disengaged, and then the first guide slope 6-3 and the first inclined surface abut against each other, thereby pushing the operating pin 6 from the unlocking position b to the abutting position a (this can also be achieved by the elastic device). The pin then continues to move until the first limiting portion 10 abuts against the first limiting surface 4-1.

[0112] When the operating pin 6 moves from the second position d to the first position c, the first limiting surface 4-1 and the first limiting portion 10 are first disengaged from the abutment, and then the first guiding inclined surface 6-3 is disengaged from the abutment with the first inclined surface, and then the second guiding inclined surface 6-4 and the second inclined surface abut against each other to push the operating pin 6 from the unlocking position b to the abutment position a (this can also be achieved by the elastic device pushing), and then continue to move so that the second limiting portion 11 abuts against the second limiting surface 4-2.

[0113] The guiding bevel is used to guide so as to achieve better pushing, and the first guiding bevel 6-3 and the second guiding bevel 6-4 are staggered in the moving direction of the operating pin 6, so that they can be connected or separated in the moving direction of the operating pin 6, and the connection setting is more compact. The above setting can better ensure that the width of the first limiting part 10 and the second limiting part 11 is larger to better improve the strength.

[0114] In some embodiments, the operating pin 6 can include a cylindrical portion 6-5, the axis of which aligns with the direction of movement of the operating pin 6, to facilitate sliding installation. In this case, the mounting hole for the operating pin 6 is also easier to machine. The other structures are formed by slotting 4-3 and removing the corresponding structure on the cylindrical portion 6-5.

[0115] Along the moving direction of the locking pin 4, a portion is removed from one side of a section of the cylindrical portion 6-5 to form a first limiting portion 10, and a portion is removed from the other side of another section of the cylindrical portion 6-5 to form a second limiting portion 11. Because they are in different sections, the first limiting portion 10 and the second limiting portion 11 can be staggered in the axial direction. In the moving direction of the locking pin 4, a portion is removed from the opposite sides respectively, so that the remaining portions are staggered in the radial direction, that is, they are staggered in the moving direction of the locking pin 4, so that the first limiting portion 10 and the second limiting portion 11 are staggered in the moving direction of the locking pin 4.

[0116] The cylindrical portion 6-5 is slotted 4-3 and some structures are removed to facilitate processing. At the same time, the mounting hole for the locking pin 4 can be generated by drilling the cylindrical hole 7-2, making the overall structure processing simpler.

[0117] In some embodiments, in order to prevent the lock pin 4 from shaking randomly, a first elastic device 8 can be provided to abut against the lock pin 4 to prevent the lock pin 4 from leaving the abutment position a. Specifically, the first elastic device 8 can be provided between the above-mentioned package and the lock pin 4. The first elastic device 8 can be a spring or other elastic structure. When it is a spring, it can be sleeved on the outer end of the lock pin 4 and abut against the shoulder at the outer end of the lock pin 4 to maintain the stability of the overall structure.

[0118] In some embodiments, a second elastic device 9 is further included to abut against the operating pin 6 to prevent the operating pin 6 from entering the first position c, thereby facilitating the reset of the operating pin 6. The second elastic device 9 can be installed at the bottom of the mounting hole, and the limiting pin 5 can be provided with a slotted hole that fits the end of the second elastic device 9 to better guide the deformation of the second elastic device 9.

[0119] The first elastic device 8 and the second elastic device 9 are provided. The working process can be as follows: when the lock pin 4 needs to be unlocked, the operating pin 6 is operated to overcome the deformation force of the second elastic device 9 to move from the second position d to the first position c, so that the lock pin 4 is disengaged from the abutting position a and moves to the unlocking position b, thereby completing the unlocking of the lock pin 4; and when locking is required, the operating pin 6 is released, and under the action of the second elastic device 9, the operating pin 6 moves in the opposite direction, from the first position c to the second position d, and under the action of the operating pin 6 and / or the first elastic device 8, the lock pin 4 moves in the opposite direction, from the unlocking position b to the abutting position a, and is limited.

[0120] In some embodiments, in order to facilitate the provision of the above-mentioned first limiting surface 4-1 and the second limiting surface 4-2, the locking pin 4 can have a slot 4-3, and the slot 4-3 is separated from the groove walls on both sides along the sliding direction of the locking pin 4 and is respectively the first limiting surface 4-1 and the second limiting surface 4-2. In order to facilitate the guidance of the first limiting portion 10 and the second limiting portion 11 to enter, the first limiting surface 4-1 and the second limiting surface 4-2 are both provided with inclined surfaces, namely the first inclined surface and the second inclined surface.

[0121] Considering the size limitation, generally speaking, the closer the center planes of the operating pin 6 and the locking pin 4 are, the better, and they can even be located on the same plane. And the operating pin 6 and the locking pin 4 are most stable when their force centers are at the center plane.

[0122] Based on this, the locking pin 4 preferably includes a stopper 4-4 with slots 4-3 on opposite sides. This forms a second retaining groove 6-2 that mates with the stopper 4-4. The operating pin 6 also has a first stopper 10 and a second stopper 11 on either side of the second retaining groove 6-2, along with stopper surfaces corresponding to the slots 4-3 on either side. The center of force applied to both the operating pin 6 and the locking pin 4 is located at or near the center plane, ensuring a more even and stable force distribution across the structure.

[0123] In some embodiments, a cylindrical hole 7-2 can be provided that matches the cylindrical portion 6-5, and the opening of the cylindrical hole 7-2 has a plastically deformed lock portion 7-1 to prevent the operating pin 6 from disengaging from the cylindrical hole 7-2, thereby completing the installation of the limit pin 5. The above installation method is simple to install and easy to operate. The lock pin 4 is laterally inserted into the cylindrical hole 7-2, and the first limit surface 4-1 and the second limit surface 4-2 on the lock pin 4 are respectively located on both sides of the cylindrical hole 7-2. Specifically, as shown in the accompanying drawings, the groove wall of the cylindrical hole 7-2 can be provided with a sliding hole, the outer end of the sliding hole extending to the side of the operating handle 7, and the inner end extending to the corresponding hole of the corresponding lock bead 3, and a packaging component is provided at the outer end of the sliding hole.

[0124] An annular shoulder is provided at the outer end of the cylindrical portion 6-5, and the annular shoulder is used to abut against the inner side of the locking portion 7-1 to achieve positioning.

[0125] Of course, the locking portion 7-1 can also be integrated into a cover plate 7-4, and the cover plate 7-4 is detachably fixedly connected to the component with the cylindrical hole 7-2.

[0126] Based on the connection ends provided in the above embodiments, the present invention further provides a fluid connector, comprising any of the connection ends described in the above embodiments, wherein the valve bodies 11 of the two connection ends are rotatably engaged. Since this fluid connector utilizes the connection ends described in the above embodiments, the beneficial effects of this fluid connector are described in the above embodiments. Rotary engagement refers to an engagement achieved through rotation.

[0127] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0128] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A connecting end of a fluid connector, comprising a valve body (1), a valve core (2) and an operating handle (7), wherein the operating handle (7) is rotatably mounted on the valve body (1) to drive the valve core (2) to rotate to achieve opening and closing, and is characterized in that: The valve body (1) is provided with a receiving groove (1-1), and further comprises: A locking ball (3), wherein when the locking ball (3) is prevented from rolling out of the receiving groove (1-1), the locking ball (3) can prevent the operating handle (7) from moving relative to the valve body (1); A lock pin (4) can be moved to an abutting position to prevent the lock ball (3) from exiting the accommodating groove (1-1), and can be moved to an unlocking position to release the blocking of the lock ball (3), so that the valve core (2) can move relative to the valve body (1); An operating pin (6) has one end exposed from the operating handle (7) and is provided as an operating end, and the other end is used to abut against the lock pin (4). The movable direction of the operating pin (6) and the movable direction of the lock pin (4) are arranged to intersect, so that when pressed, the lock pin (4) can be pushed out of the abutting position to move to the unlocking position.

2. The connection terminal according to claim 1, characterized in that: The operating handle (7) is a plate-like structure perpendicular to the rotation axis of the valve core (2); one side of the lock pin (4) has an abutting inclined surface (4-5), and when the lock pin (4) moves to the abutting position, the abutting inclined surface (4-5) is used to abut against a side surface of the lock ball (3) to prevent the lock ball (3) from escaping from the accommodating groove (1-1); the lock pin (4) and the operating pin (6) are both slidably mounted on the operating handle in a direction perpendicular to the rotation axis of the valve core (2).

3. The connection terminal according to claim 2, characterized in that: When the lock pin (4) is located at the abutting position, the abutting inclined surface (4-5) abuts against the side of the lock ball (3) away from the accommodating groove (1-1), and in the movable direction of the lock pin (4), the abutting inclined surface (4-5) abuts against one side of the lock ball (3).

4. The connection terminal according to claim 2, characterized in that: One end of the operating handle (7) is rotatably connected to the valve body (1), and the other end has an operating pin (6) exposed on the side surface of one side in the rotation direction; an arc groove (1-3) is provided on the valve body (1), and the receiving groove (1-1) is provided at both ends of the arc groove (1-3) to respectively correspond to the operating handle (7) rotating to the closed position in which the valve core (2) is closed and the operating handle (7) rotating to the open position in which the valve core (2) is opened.

5. The connecting end according to any one of claims 1 to 4, characterized in that: The invention also includes a limit pin (5), wherein the limit pin (5) can move in a direction intersecting with the moving direction of the lock pin (4), so that when the lock pin (4) is in the abutting position, the limit pin (5) can move to the limit position to form a limit relationship with the lock pin (4), so as to prevent the lock pin (4) from leaving the abutting position; the operating pin (6) can move in a direction intersecting with the moving direction of the lock pin (4), so that when the limit pin (5) is pushed to move to exit the limit position during the process of triggering the movement to the operating position, the lock pin (4) can move to the unlocking position and prevent the lock pin (4) from exiting the unlocking position.

6. The connection terminal according to claim 5, characterized in that: The limiting pin (5) is provided with a base portion (5-1) and a first limiting portion (10), wherein the first limiting portion (10) protrudes from one side of the base portion (5-1) along the movable direction of the limiting pin (5) and is used to abut against the first limiting surface (4-1) of the lock pin (4) to prevent the lock pin (4) from being separated from the abutting position; the operating pin (6) comprises a pushing portion (6-1) and a second limiting portion (11), wherein the pushing portion (6-1) abuts against the base portion (5-1) and is in contact with the first limiting portion ( 10) are arranged in parallel along the sliding direction of the lock pin (4); the second limiting portion (11) protrudes from the side of the pushing portion (6-1) away from the first limiting portion (10), and is used to abut the second limiting surface (4-2) of the lock pin (4) to prevent the lock pin (4) from leaving the unlocking position; the first limiting surface (4-1) and the second limiting surface (4-2) are arranged opposite to each other, and the first limiting portion (10) and the second limiting portion (11) are staggered along the movable direction of the limiting pin (5).

7. The connection terminal according to claim 5, characterized in that: The operating handle (7) is provided with a mounting groove (7-3) and a cover plate (7-4); the base portion (5-1) is slidably matched with the mounting groove (7-3) and can be installed into the mounting groove (7-3) from the notch of the mounting groove (7-3); the lock pin (4) is transversely penetrated in the mounting groove (7-3) so that the first limit surface (4-1) and the second limit surface (4-2) are respectively located on both sides of the mounting groove (7-3); the cover plate (7-4) is fixedly installed at the notch of the mounting groove (7-3); the cover plate (7-4) has a mounting hole slidably matched with the operating pin (6); the inner side of the cover plate (7-4) abuts against the shoulder portion on the operating pin (6) to prevent the operating pin (6) from escaping from the mounting groove (7-3); the movable direction of the limit pin (5) is the same as the movable direction of the operating pin (6), and both are arranged perpendicular to the movable direction of the lock pin (4).

8. The connection end according to any one of claims 1 to 4, characterized in that: The operating pin (6) has a first limiting portion (10) and a second limiting portion (11) staggered along the movable direction of the locking pin (4), and the first limiting portion (10) and the second limiting portion (11) are staggered along the movable direction of the operating pin (6); the locking pin (4) has a first limiting surface (4-1) and a second limiting surface (4-2) arranged opposite to each other; When the operating pin (6) moves to the second position (d), the first limiting portion (10) is located between the first limiting surface (4-1) and the second limiting surface (4-2), and its limiting wall surface abuts against the first limiting surface (4-1), so as to prevent the locking pin (4) from leaving the abutting position; When the operating pin (6) moves to the first position (c), the second limiting portion (11) is located between the first limiting surface (4-1) and the second limiting surface (4-2), and its limiting wall surface abuts against the second limiting surface (4-2), so as to prevent the locking pin (4) from leaving the unlocking position.

9. The connection terminal according to claim 8, characterized in that: in: L=DW, wherein L is the moving distance of the lock pin (4) from the abutting position to the unlocking position, wherein D is the distance between the limiting wall surface of the first limiting portion (10) and the limiting wall surface of the second limiting portion (11), and wherein W is the distance between the first limiting surface (4-1) and the second limiting surface (4-2); In the movable direction of the locking pin (4), the width of the first limiting portion (10) and the width of the second limiting portion (11) are both equal to the distance between the first limiting surface (4-1) and the second limiting surface (4-2); One end of the limiting wall surface of the first limiting portion (10) close to the second limiting portion (11) has a first guiding inclined surface (6-3) extending toward the second limiting portion (11); One end of the limiting wall of the second limiting portion (11) close to the first limiting portion (10) has a second guiding inclined surface (6-4) extending toward the first limiting portion (10); The first guiding inclined surface (6-3) and the second guiding inclined surface (6-4) are staggered in the movable direction of the operating pin (6).

10. The connection terminal according to claim 9, characterized in that: The operating pin (6) comprises a cylindrical portion (6-5), the axial direction of the cylindrical portion (6-5) being consistent with the movable direction of the operating pin (6); along the movable direction of the locking pin (4), a portion is removed from one side of a section of the cylindrical portion (6-5) to form a first limiting portion (10), and a portion is removed from the other side of another section of the cylindrical portion (6-5) to form a second limiting portion (11).

11. The connection terminal according to claim 9, characterized in that: The locking pin (4) has a slot (4-3), and the slot walls of the slot (4-3) that are spaced apart from each other along the sliding direction of the locking pin (4) are respectively the first limiting surface (4-1) and the second limiting surface (4-2); The locking pin (4) comprises a limiting handle (4-4), and the limiting handle (4-4) has the slot (4-3) on both sides thereof; a second clamping groove (6-2) is formed on the cylindrical portion (6-5) and matches the limiting handle (4-4), and a first limiting portion (10) and a second limiting portion (11) are formed on both sides of the second clamping groove (6-2); a cylindrical hole (7-2) matches the cylindrical portion (6-5), and the opening of the cylindrical hole (7-2) has a plastically deformed locking portion (7-1) to prevent the operating pin (6) from escaping from the cylindrical hole (7-2); It also includes a first elastic device (8) that abuts against the lock pin (4) to prevent the lock pin (4) from leaving the abutting position; and / or it also includes a second elastic device (9) that abuts against the operating pin (6) to prevent the operating pin (6) from entering the first position (c); The operating handle (7) has a cylindrical hole (7-2) that matches the cylindrical portion (6-5), and the opening of the cylindrical hole (7-2) has a plastically deformed locking portion (7-1) to prevent the operating pin (6) from escaping from the cylindrical hole (7-2).

12. A fluid connector, characterized in that: It comprises a connecting end as described in any one of claims 1 to 11, wherein the valve bodies (1) of the two connecting ends are rotatably connected.

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