Blind insertion quick connector

Abstract

The utility model provides a blind insertion quick connector, belongs to the technical field of connectors, and solves the problem that in the prior art, butt joint can be completed only when the axis of a male connector valve body is parallel to the axis of a female connector valve body, and use is limited. The socket comprises a plug and a socket, the plug comprises a mounting cylinder, a connecting cylinder is spherically hinged to the mounting cylinder, and a floating insertion rod is spherically hinged to one end, away from the mounting cylinder, of the connecting cylinder. The floating insertion rod can swing by a certain angle due to the spherical hinge connection mode of the two ends of the connecting cylinder, the floating insertion rod can still be inserted and butted in the axial direction of the socket under the condition that the axis of the plug and the axis of the socket are not parallel, and the application range of the blind insertion quick connector is widened.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of joint, specifically belongs to a kind of blind insertion quick coupler. BACKGROUND

[0002] Blind insertion quick coupler is a kind of fluid transmission device that can be quickly connected and disconnected without accurate alignment, widely used in data center liquid cooling system, industrial automation, medical equipment and new energy automobile and other fields. Its core advantage is blind insertion function without visual aid, floating compensation mechanism and high reliability sealing design, which can significantly improve equipment maintenance efficiency and reduce operation difficulty.

[0003] The existing quick coupler, such as the floating blind insertion mechanism of the quick coupler disclosed in the patent with publication number CN217003577U, includes a male connector, which includes a male connector valve body, a male connector valve core and a male connector spring. A first sealing ring is provided between the male connector valve core and the male connector valve body. The floating blind insertion mechanism includes a fixed shaft sleeve, a compression shaft sleeve and a second sealing ring. The fixed shaft sleeve is provided with a mounting hole, and the male connector valve body is arranged in the mounting hole. The compression shaft sleeve is located between the fixed shaft sleeve and the male connector valve body. One end of the compression shaft sleeve abuts against the rear end of the male connector valve body. Radial floating gaps are left between the outer peripheral surface of the male connector valve body and the hole wall of the mounting hole, and between the outer peripheral surface of the male connector valve body and the inner peripheral surface of the compression shaft sleeve. The second sealing ring is compressed between the rear end surface of the male connector valve body and the fixed shaft sleeve. The floating blind insertion mechanism of the quick coupler has a reasonable structure, and the male connector valve body can float radially in the fixed shaft sleeve, thereby reducing the requirement for installation conditions and improving the installation efficiency.

[0004] Although the above-mentioned patent can allow the misaligned male connector valve body and female connector valve body to be accurately connected, the axis of the male connector valve body must be parallel to the axis of the female connector valve body to complete the connection, which is relatively limited in use. UTILITY MODEL CONTENTS

[0005] In view of the above problems, the utility model aims to provide a blind insertion quick coupler. The ball hinge connection mode at both ends of the connecting barrel allows the floating insertion rod to swing by a certain angle. In the case that the axis of the plug is not parallel to the axis of the socket, the floating insertion rod can still be inserted into the socket in the axial direction for butt joint, thereby increasing the application range of the blind insertion quick coupler.

[0006] The technical scheme adopted by the utility model is as follows:

[0007] A blind insertion quick coupler includes a plug and a socket. The plug includes a mounting barrel, the mounting barrel is ball-hinged with a connecting barrel, and the connecting barrel is ball-hinged with a floating insertion rod at the end away from the mounting barrel.

[0008] Preferably, the mounting cylinder is detachably connected with a blocking ring which is sleeved on the connecting cylinder and matched with the spherical hinge of the connecting cylinder.

[0009] Preferably, the blocking ring is attached to the end face of the mounting cylinder, and the outer side of the mounting cylinder is threadedly sleeved with a fixing sleeve for pressing the blocking ring against the end face of the mounting cylinder.

[0010] Preferably, an abutting ring is installed in the mounting cylinder, a plug valve core is movably arranged in the floating plug, and the plug valve core is provided with a first spring at one end close to the mounting cylinder and abutting against the abutting ring.

[0011] Preferably, the floating plug is sleeved on the connecting cylinder, and the connecting cylinder is sleeved with a first sealing ring matched with the floating plug.

[0012] Preferably, a sealing gasket is arranged in the mounting cylinder and in contact with the outer wall of the connecting cylinder.

[0013] Preferably, the middle part of the connecting cylinder is provided with an annular protrusion.

[0014] Preferably, the socket comprises a socket shell, the end face of the socket shell is provided with a guide slope, a sleeve is arranged in the socket shell, a socket valve core is installed in the sleeve, a conical movable valve sleeve for blocking the sleeve is movably sleeved on the socket valve core, and a second spring is arranged in the sleeve and abutting against the conical movable valve sleeve.

[0015] Preferably, the sleeve is movably arranged in the socket shell, the end of the sleeve away from the guide slope is abutting against a clamping spring clamped with the socket shell, and a step is arranged in the socket shell for limiting the sleeve from moving out of the socket shell in the direction of the guide slope.

[0016] Preferably, a separation ring is arranged between the sleeve and the step, and the two sides of the separation ring are provided with second sealing rings.

[0017] As described above, due to the adoption of the above technical solutions, the present application has the following beneficial effects:

[0018] The spherical hinge connection mode at both ends of the connecting cylinder enables the floating plug to swing at a certain angle, and in the case that the axis of the plug is not parallel to the axis of the socket, the floating plug can still be inserted into the socket in the axial direction, thereby increasing the application range of the blind plug quick connector. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor.

[0020] Figure 1 The plug and the socket three-dimensional structure schematic view provided by the utility model embodiment;

[0021] Figure 2 The plug section structure schematic view provided by the utility model embodiment;

[0022] Figure 3 The socket section structure schematic view provided by the utility model embodiment;

[0023] Figure 4 The plug and the socket cooperation schematic view provided by the utility model embodiment;

[0024] Figure 5 The floating plug rod deflection schematic view provided by the utility model embodiment.

[0025] Reference signs: 1-plug;101-fixed sleeve;102-installation cylinder;103-floating plug rod;104-plug valve core;105-connection cylinder;106-first sealing ring;107-stop ring;108-sealing gasket;109-abutment ring;110-first spring;111-protrusion;112-annular protrusion;113-arc plate;114-installation sleeve;2-socket;201-socket shell;202-sleeve;203-conical movable valve sleeve;204-guiding slope;205-socket valve core;206-second sealing ring;207-isolation ring;208-second spring;209-clamp spring;210-step;3-third sealing ring. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the utility model embodiments clearer, the technical scheme in the utility model embodiments will be described clearly and completely below in combination with the drawings in the utility model embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the utility model embodiments described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the utility model.

[0028] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] The following is combined with Figures 1-5 This utility model will be described in detail.

[0030] Example

[0031] A blind-plug quick connector includes a plug 1 and a socket 2. The plug 1 includes a mounting sleeve 102, which is ball-jointed with a connecting sleeve 105. A floating plug 103 is ball-jointed at one end of the connecting sleeve 105 away from the mounting sleeve 102.

[0032] like Figure 5 As shown, the mounting cylinder 102 remains stationary, the connecting cylinder 105 can rotate around the mounting cylinder 102, and the floating plug 103 can rotate around the connecting cylinder 105, thereby allowing the floating plug 103 to engage with the tilted socket 2. Figure 5 As shown, plug 1 is placed horizontally, and socket 2 is tilted downwards.

[0033] A retaining ring 107 is detachably connected to the end face of the mounting cylinder 102 near the floating insert rod 103. This retaining ring 107 is sleeved on the connecting cylinder 105 and ball-jointed with the connecting cylinder 105. The retaining ring 107 facilitates the installation and fixation of the connecting cylinder 105. Furthermore, the retaining ring 107 fits snugly against the end face of the mounting cylinder 102. A fixing sleeve 101 is threaded onto the outer side of the mounting cylinder 102 to press the retaining ring 107 against the end face of the mounting cylinder 102. The fixing sleeve 101, through its threaded connection with the mounting cylinder 102, presses the retaining ring 107 tightly against the end face of the mounting cylinder 102, thereby fixing the connecting cylinder 105.

[0034] The installation cylinder 102 is provided with an abutting ring 109, the floating insertion rod 103 is provided with a plug valve core 104, and the first spring 110 abutting to the abutting ring 109 is arranged at one end of the plug valve core 104 close to the installation cylinder 102. The floating insertion rod 103 is provided with a tapered channel, the plug valve core 104 blocks the tapered channel when the plug valve core 104 is at the smallest end of the tapered channel, and the tapered channel is opened when the plug valve core 104 moves from the smallest end to the largest end of the tapered channel. The first spring 110 provides a reset function for the plug valve core 104 to ensure that the plug valve core 104 can close the tapered channel after opening the tapered channel. The plug valve core 104 is provided with a bracket (not marked in the figure) for abutting to the tapered channel to prevent the plug valve core 104 from moving out of the floating insertion rod 103.

[0035] The installation cylinder 102 is provided with a protrusion 111 away from the connecting cylinder 105, and the abutting ring 109 abuts to the protrusion 111 during installation to prevent the abutting ring 109 from moving out of the installation cylinder 102 from the left side.

[0036] The floating insertion rod 103 is sleeved on the connecting cylinder 105, and the first sealing ring 106 matched with the floating insertion rod 103 is sleeved on the connecting cylinder 105. The connecting cylinder 105 is provided with spherical surfaces at both ends to form a spherical hinge connection with the floating insertion rod 103 and the stop ring 107. The first sealing ring 106 can seal the gap between the connecting cylinder 105 and the floating insertion rod 103 to prevent fluid leakage. Further, the installation cylinder 102 is provided with a sealing gasket 108 in contact with the outer wall of the connecting cylinder 105. The sealing gasket 108 abuts to the abutting ring 109 and is attached to the spherical surface of the connecting cylinder 105. The sealing gasket 108 can seal the gap between the stop ring 107 and the connecting cylinder 105 and the gap between the stop ring 107 and the installation cylinder 102 to prevent fluid leakage.

[0037] The end of the floating insertion rod 103 is annularly provided with an arc-shaped plate 113, which can be directly sleeved on the spherical surface of the connecting cylinder 105. The installation sleeve 114 is fixedly sleeved on the outer side of the arc-shaped plate 113. The inner side of the installation sleeve 114 is provided with an arc-shaped surface matched with the inner side arc-shaped surface of the arc-shaped plate 113. The installation sleeve 114 cooperates with the arc-shaped plate 113 to prevent the connecting cylinder 105 from separating from the floating insertion rod 103. The installation sleeve 114 and the stop ring 107 are both split parts, i.e., the installation sleeve 114 and the stop ring 107 are two half-annular structures welded or assembled into an annular structure to facilitate installation on the spherical surface.

[0038] The middle part of the connecting cylinder 105 is provided with an annular protrusion 112, which can limit the deflection position of the floating insertion rod 103 to prevent the floating insertion rod 103 from automatically deflecting too large an angle around the connecting cylinder 105 due to gravity and affecting the subsequent docking operation with the socket 2. The annular protrusion 112 can also limit the deflection angle of the floating insertion rod 103 during the docking process.

[0039] The socket 2 comprises a socket shell 201, one end surface of the socket shell 201 is provided with a guide slope 204, the socket shell 201 is provided with a sleeve 202, the sleeve 202 is provided with a socket spool 205, the socket spool 205 is movably provided with a conical movable valve sleeve 203 for plugging the sleeve 202, and the sleeve 202 is provided with a second spring 208 abutting against the conical movable valve sleeve 203.

[0040] After the floating plug rod 103 abuts against the guide slope 204, the guide slope 204 guides the floating plug rod 103 to the axial position of the socket shell 201, so that the floating plug rod 103 is aligned with the socket spool 205, and the continuous insertion of the floating plug rod 103 pushes away the conical movable valve sleeve 203, and the plug spool 104 is away from the port of the floating plug rod 103, so as to realize the communication between the socket 2 and the plug 1; during the process that the floating plug rod 103 moves out of the socket 2, the second spring 208 timely resets the conical movable valve sleeve 203, and the first spring 110 timely resets the plug spool 104.

[0041] The conical structure of the conical movable valve sleeve 203 cooperates with the end closing structure of the sleeve 202, so that the conical movable valve sleeve 203 is prevented from moving out of the sleeve 202.

[0042] The sleeve 202 is movably arranged in the socket shell 201, one end of the sleeve 202 away from the guide slope 204 is abutted with a clamping spring 209 clamped with the socket shell 201, and the socket shell 201 is provided with a step 210 for limiting the sleeve 202 from moving out of the socket shell 201 in the direction of the guide slope 204. The inner wall of the socket shell 201 is provided with a clamping groove matched with the clamping spring 209. The step 210 cooperates with the clamping spring 209 to limit the sleeve 202 from moving out of the socket shell 201, and after the clamping spring 209 is taken out, the sleeve 202 can be taken out; the plug spool 104 and the socket spool 205 are both provided with sealing rings to ensure the sealing performance.

[0043] The sleeve 202 and the step 210 are provided with an isolation ring 207, and the two sides of the isolation ring 207 are provided with second sealing rings 206. The two second sealing rings 206 can improve the sealing performance during the connection of the plug 1 and the socket 2, and the isolation ring 207 separates the two second sealing rings 206, so that the two sealing rings maintain their respective sealing effects. The isolation ring 209 can be made of rubber and can be bent and deformed, which is convenient for installation. If the isolation ring 209 is made of hard material, the inner wall of the socket shell 201 on the right side of the step 210 can be processed to be flush, that is, the inner wall of the socket shell 201 abutting against the outer wall of the isolation ring 209 is flush with the inner wall of the socket shell 201 abutting against the outer wall of the sleeve 202, so that the isolation ring 209 is conveniently sleeved into the socket shell 201 from the right side.

[0044] The mounting cylinder 102 and the socket shell 201 are provided with threads, so as to connect the plug 1 and the socket 2 to corresponding pipes; the mounting cylinder 102 and the socket shell 201 are provided with a third sealing ring 3, which can seal gaps when connected to the pipes; the fixing sleeve 101 is provided with a hexagonal protrusion, and the outer wall of the socket shell 201 is uniformly provided with a plurality of planes in the circumferential direction, so as to facilitate the use of a wrench to rotate and tighten the fixing sleeve 101 and the socket 2.

[0045] The above are only preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A blind-plug quick connector, comprising a plug (1) and a socket (2), characterized in that, The plug (1) includes a mounting cylinder (102), which is ball-jointed with a connecting cylinder (105), and a floating insert (103) is ball-jointed at one end of the connecting cylinder (105) away from the mounting cylinder (102).

2. The blind-fit quick connector according to claim 1, characterized in that, The mounting cylinder (102) has a retaining ring (107) that is sleeved on the connecting cylinder (105) and ball-jointed with the connecting cylinder (105) on the end face near the floating insert (103).

3. A blind-fit quick connector according to claim 2, characterized in that, The retaining ring (107) fits against the end face of the mounting cylinder (102), and the outer side of the mounting cylinder (102) is threaded with a fixing sleeve (101) for pressing the retaining ring (107) against the end face of the mounting cylinder (102).

4. A blind-fit quick connector according to claim 1, characterized in that, An abutment ring (109) is installed inside the mounting cylinder (102), and a plug valve core (104) is movably sealed in the floating plug rod (103). A first spring (110) is provided at one end of the plug valve core (104) near the mounting cylinder (102) to abut against the abutment ring (109).

5. A blind-fit quick connector according to claim 1, characterized in that, The floating insert (103) is sleeved on the connecting cylinder (105), and the connecting cylinder (105) is sleeved with a first sealing ring (106) that cooperates with the floating insert (103).

6. A blind-fit quick connector according to claim 1, characterized in that, The mounting cylinder (102) is provided with a sealing gasket (108) that contacts the outer wall of the connecting cylinder (105).

7. A blind-fit quick connector according to claim 1, characterized in that, The connecting cylinder (105) has an annular protrusion (112) in the middle.

8. A blind-mating quick connector according to claim 1, characterized in that, The socket (2) includes a socket housing (201), one end face of which is provided with a guide slope (204), a sleeve (202) is provided in the socket housing (201), a socket valve core (205) is installed in the sleeve (202), a conical movable valve sleeve (203) for sealing the sleeve (202) is movably sealed on the socket valve core (205), and a second spring (208) is provided in the sleeve (202) to abut against the conical movable valve sleeve (203).

9. A blind-mating quick connector according to claim 8, characterized in that, The sleeve (202) is movably disposed in the socket housing (201). The end of the sleeve (202) away from the guide slope (204) is abutted against a snap ring (209) that engages with the socket housing (201). The socket housing (201) is provided with a step (210) for limiting the sleeve (202) from moving out of the socket housing (201) in the direction of the guide slope (204).

10. A blind-mating quick connector according to claim 9, characterized in that, An isolation ring (207) is provided between the sleeve (202) and the step (210), and a second sealing ring (206) is provided on both sides of the isolation ring (207).

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