Blind plug connector

Abstract

The utility model provides a blind plug connector, belongs to the technical field of blind plug connectors, and solves the problem of leakage caused by serious abrasion after long-term use of a male head valve body and a male head base in the prior art. The plug comprises a plug body, the plug body comprises a plug shell, an inner ring is movably arranged in the plug shell, one end of the inner ring is provided with a floating insertion rod movably connected with the plug body, the other end of the inner ring is provided with a retaining ring connected with the plug body in a clamped mode, sealing assemblies are arranged on the two end faces of the inner ring, and a blocking groove is annularly formed in the inner wall of the plug shell. The outer wall of the floating insertion rod is annularly provided with a baffle ring which cooperates with the baffle groove to limit the floating insertion rod from moving out of the plug housing, and the baffle groove is internally provided with an elastic cushion. The floating inserting rod can swing in the blocking groove, so that automatic alignment and butt joint are achieved, the floating inserting rod and the plug shell are separated through the elastic soft cushion, abrasion between the floating inserting rod and the plug shell is reduced, meanwhile, the gap between the floating inserting rod and the plug shell can be sealed in an auxiliary mode, and the sealing performance is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of blind plug connector, specifically belongs to a blind plug connector. BACKGROUND

[0002] The blind plug connector is a pipeline connector which can be quickly and reliably connected without direct visual alignment, and is widely used in the fields of communication, industrial control, medical equipment, etc.

[0003] The blind plug connector mainly comprises a plug and a socket, and a floating plug rod is arranged on the plug for aligning and plugging the socket to ensure the automatic alignment and connection of the connector. The prior art such as the patent with the publication number CN220749381 U discloses a blind plug connector, which comprises a male head and a female head; the male head comprises a male head base, a fastener and a connector assembly; one end of the connector assembly is arranged in the male head base, the fastener is arranged between the connector assembly and the male head base, and one end of the fastener abuts against the left end of the connector assembly; floating gaps are arranged between the outer wall of the connector assembly and the inner wall of the fastener and between the outer wall of the connector assembly and the inner wall of the male head base; the female head comprises a female head valve body, and the female head valve body has a tapered hole wall section with a gradually decreasing inner diameter from left to right on the inner wall of the opening at the left end; the male head and the female head are connected through the connector assembly, and the connector assembly can float radially along the tapered hole wall section. The male head valve body can radially float in the female head valve body, and the problem that the error of the female head changes when replacing other servers, the male head has deviated to the mating position of the female head of the previous server, and the error exceeds the tolerance range to cause the problem of unable to cooperate can be solved.

[0004] The above-mentioned patent uses the male head base and the fastener to limit the male head valve body, so that the male head valve body can only slide radially. After the male head valve body contacts the tapered hole wall section, the male head valve body will be tightly attached to the male head base and slide, which will cause serious wear between the male head valve body and the male head base after long-term use, resulting in fluid leakage. UTILITY MODEL CONTENTS

[0005] In view of the above problems, the utility model aims to provide a blind plug connector, the floating plug rod can swing in the blocking groove, so that automatic alignment and butt joint can be realized, the elastic soft pad separates the floating plug rod from the plug shell, reduces the wear between the floating plug rod and the plug shell, and can also assist in sealing the gap between the floating plug rod and the plug shell to increase the sealing performance.

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

[0007] The utility model provides a blind insertion joint, including the plug, the plug includes the plug shell, the inner ring is movably arranged in the plug shell, one end of the inner ring is provided with the floating plug rod which is movably connected with the plug, the other end of the inner ring is provided with the stop ring which is clamped with the plug, and the two end faces of the inner ring are provided with sealing assemblies.

[0008] Preferably, the sealing assembly comprises a sealing gasket abutting against the end face of the inner ring, and a first sealing ring is sleeved on the stop ring and the floating plug rod respectively and abuts against the end of the sealing gasket away from the inner ring.

[0009] Preferably, the floating plug rod movably seals a plug valve core, and a first spring is arranged on one end of the plug valve core close to the stop ring and abuts against the stop ring.

[0010] Preferably, the plug shell and the stop ring are made of plastic.

[0011] Preferably, the end face of the plug shell is provided with a horn for swinging of the floating plug rod.

[0012] Preferably, the utility model further comprises a socket, the socket comprises a socket shell, a guide inclined plane is arranged on one end face of the socket shell, a limiting protrusion is arranged on the other end face of the socket shell, a sleeve movably arranged in the socket shell abuts against the limiting protrusion, a socket valve core is arranged in the sleeve, a conical movable valve sleeve for plugging the sleeve is movably sleeved on the socket valve core, a second spring abutting against the conical movable valve sleeve is arranged in the sleeve, and a guide stop ring for limiting the sleeve from moving out of the socket shell is clamped in the guide inclined plane.

[0013] Preferably, an isolation ring is arranged between the guide stop ring and the sleeve, a second sealing ring in contact with the outer wall of the conical movable valve sleeve is arranged between the sleeve and the isolation ring, and a third sealing ring is arranged between the guide stop ring and the isolation ring.

[0014] Preferably, the socket shell is made of plastic.

[0015] Preferably, the plug shell is provided with an identification ring.

[0016] Preferably, the plug shell is provided with a hexagonal protrusion.

[0017] As described above, due to the adoption of the above technical scheme, the utility model has the beneficial effects that:

[0018] 1. The floating plug rod can swing in the blocking groove, so that automatic alignment and butt joint can be realized, the elastic soft pad separates the floating plug rod from the plug shell, reduces the wear between the floating plug rod and the plug shell, and can also assist in sealing the gap between the floating plug rod and the plug shell, and increase the sealing performance.

[0019] 2. The floating plug rod, the inner ring and the retainer ring can be installed in the plug shell in sequence, wherein the floating plug rod is limited to move out of the plug shell by the blocking ring cooperating with the blocking groove, and finally is clamped to the plug shell through the retainer ring, so that quick assembly operation is realized. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and 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 to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0021] Figure 1 The three-dimensional structure schematic diagram provided by the embodiment of the present application is shown in the figure.

[0022] Figure 2 The plug cross-sectional structure schematic diagram provided by the embodiment of the present application is shown in the figure.

[0023] Figure 3 The socket cross-sectional structure schematic diagram provided by the embodiment of the present application is shown in the figure.

[0024] Figure 4 The plug and socket cooperation schematic diagram provided by the embodiment of the present application is shown in the figure.

[0025] Figure 5 The plug valve core three-dimensional structure schematic diagram provided by the embodiment of the present application is shown in the figure.

[0026] Figure 6 The socket valve core three-dimensional structure schematic diagram provided by the embodiment of the present application is shown in the figure.

[0027] Figure 7 The plug cross-sectional structure schematic diagram provided by another embodiment of the present application is shown in the figure.

[0028] Reference signs: 1-plug; 101-plug shell; 102-elastic soft pad; 103-annular protrusion; 104-annular groove; 105-horn mouth; 106-plug spool; 107-floating plug rod; 108-retaining ring; 109-first sealing ring; 110-sealing washer; 111-inner ring; 112-stop ring; 113-stop groove; 114-first spring; 2-socket; 201-socket shell; 202-socket spool; 203-second sealing ring; 204-isolation ring; 205-third sealing ring; 206-guiding retaining ring; 207-guiding inclined surface; 208-conical movable valve sleeve; 209-sleeve; 210-second spring; 211-limiting protrusion; 3-fourth sealing ring; 4-identification ring. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0031] In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the product of the application when it is usually placed, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0032] The embodiments of the present application will be described below in conjunction with Figures 1-7 The present application will be described in detail.

[0033] EMBODIMENTS

[0034] The utility model provides a kind of blind insertion connector, including plug 1, plug 1 includes plug shell 101, inner ring 111 is movably arranged in plug shell 101, one end of inner ring 111 is provided with the float insertion rod 107 movably connected with plug 1, the other end of inner ring 111 is provided with the stop ring 108 of being clamped with plug 1, both end faces of inner ring 111 are provided with sealing assembly, annularly set with retaining groove 113 on the inner wall of plug shell 101, the outer wall of float insertion rod 107 is annularly provided with the stop ring 112 of being cooperated with retaining groove 113 and limiting float insertion rod 107 moves out of plug shell 101, retaining groove 113 is installed with elastic soft pad 102.

[0035] As shown in the utility model discloses a kind of blind insertion connector, including plug 1, plug 1 includes plug shell 101, inner ring 111 is movably arranged in plug shell 101, one end of inner ring 111 is provided with the float insertion rod 107 movably connected with plug 1, the other end of inner ring 111 is provided with the stop ring 108 of being clamped with plug 1, both end faces of inner ring 111 are provided with sealing assembly, annularly set with retaining groove 113 on the inner wall of plug shell 101, the outer wall of float insertion rod 107 is annularly provided with the stop ring 112 of being cooperated with retaining groove 113 and limiting float insertion rod 107 moves out of plug shell 101, retaining groove 113 is installed with elastic soft pad 102. Figure 2 Elastic soft pad 102 is arranged between float insertion rod 107 and plug shell 101, when float insertion rod 107 swings, it can extrude elastic soft pad 102 and make it deform, so that float insertion rod 107 can swing and adjust orientation, realize automatic alignment connection, and avoid mutual abrasion of float insertion rod 107 and plug shell 101.Elastic soft pad 102 can also assist float insertion rod 107 to reset and center.

[0036] The installation steps of plug 1 are as follows: first, install elastic soft pad 102 into retaining groove 113, then insert float insertion rod 107 into plug shell 101 from left to right, stop ring 112 on float insertion rod 107 is blocked by retaining groove 113, so as to limit float insertion rod 107 from moving out of plug shell 101 from right, then install sealing assembly, inner ring 111, sealing assembly and stop ring 108 in sequence, and the setting mode of the utility model can facilitate quick assembly.

[0037] Sealing assembly includes sealing washer 110 abutting with the end face of inner ring 111, the end of sealing washer 110 away from inner ring 111 abuts with first sealing ring 109 sleeved on stop ring 108 and float insertion rod 107 respectively.By using sealing washer 110 and first sealing ring 109 in combination, the sealing performance is increased, and the quick assembly of plug 1 is facilitated.First sealing ring 109 can also seal the gap between the inner wall of plug shell 101 and other structures, to avoid fluid leakage.

[0038] The movable seal in the floating plug rod 107 is provided with a plug spool 106, and the first spring 114 is arranged at the end of the plug spool 106 close to the retainer ring 108 and abuts against the retainer ring 108. The floating plug rod 107 is provided with a tapered channel, and when the plug spool 106 is at the smallest end of the tapered channel, the plug spool 106 blocks the tapered channel, and when the plug spool 106 moves from the smallest end to the largest end of the tapered channel, the tapered channel is opened. The first spring 114 provides a reset function for the plug spool 106 to ensure that the plug spool 106 can close the tapered channel after opening the tapered channel; the plug spool 106 is provided with a bracket (not marked in the figure) for abutting against the tapered channel to prevent the plug spool 106 from moving out of the floating plug rod 107.

[0039] The plug spool 106 is pre-installed in the floating plug rod 107, and the plug spool 106 is installed together with the floating plug rod 107. After the inner ring 111 is installed, the first spring 114 is placed in the floating plug rod 107, and finally the retainer ring 108 is clamped and installed.

[0040] The plug housing 101 and the retainer ring 108 are made of plastic, so that the plug housing 101 and the retainer ring 108 can be slightly deformed to be clamped with each other, and the manufacturing cost of the plug 1 is reduced (the use of metal materials is reduced). The floating plug rod 107 is made of metal to meet the strength requirement in the docking process; the inner ring 111 increases the compression strength inside the plug housing 101 to prevent the plug housing 101 from being broken due to excessive fluid pressure. The inner ring 111 is adjusted according to the use requirement and can be made of plastic or metal; when the fluid pressure is not large, the inner ring 111 can be made of plastic, and the inner ring 111 and the retainer ring 108 can be integrally formed, as shown in FIG. 4, so that the use of one set of sealing assemblies is reduced, and the cost is further reduced; when the fluid pressure is large, the inner ring 111 is made of metal. Figure 7

[0041] The retainer ring 108 is provided with an annular protrusion 103, and the inner wall of the plug housing 101 is provided with an annular groove 104 matched with the annular protrusion 103, or the retainer ring 108 can be provided with an annular groove 104, and the inner wall of the plug housing 101 is provided with an annular protrusion 103, or the retainer ring 108 and the inner wall of the plug housing 101 are both provided with the annular groove 104 and the annular protrusion 103, so as to realize the clamping of the retainer ring 108 and the plug housing 101. The tail end of the retainer ring 108 is provided with a trumpet-shaped inlet to facilitate the guidance of the fluid.

[0042] The end surface of the plug housing 101 is provided with a trumpet mouth 105 for the swinging of the floating plug rod 107. The trumpet mouth 105 provides space for the swinging of the floating plug rod 107.

[0043] ​The blind plug connector further comprises a socket 2, the socket 2 comprises a socket shell 201, one end surface of the socket shell 201 is provided with a guide inclined surface 207, the other end surface of the socket shell 201 is provided with a limiting protrusion 211, a sleeve 209 abutting against the limiting protrusion 211 is movably arranged in the socket shell 201, a socket valve core 202 is installed in the sleeve 209, a conical movable valve sleeve 208 for plugging the sleeve 209 is movably arranged on the socket valve core 202, a second spring 210 abutting against the conical movable valve sleeve 208 is arranged in the sleeve 209, and the guide inclined surface 207 is clamped with a guide stop ring 206 for limiting the sleeve 209 from moving out of the socket shell 201.

[0044] As shown in Figure 3 and 4 , the guide inclined surface 207 can guide the floating plug rod 107 to deflect to the axis of the guide stop ring 206 and be inserted, the floating plug rod 107 is aligned with the socket valve core 202 and is pushed away from the plug valve core 106 by the socket valve core 202, at the same time, the floating plug rod 107 pushes away the conical movable valve sleeve 208, so as to realize the communication between the socket 2 and the plug 1, in the process of moving out of the socket 2, the second spring 210 pushes the conical movable valve sleeve 208 to make the conical movable valve sleeve 208 adhere to the floating plug rod 107, so as to ensure that the passage of the socket 2 is closed in time, at the same time, the first spring 114 also pushes the plug valve core 106 to reset and close the passage of the plug 1 in time. The conical structure of the conical movable valve sleeve 208 cooperates with the end closing structure of the sleeve 209, so as to prevent the conical movable valve sleeve 208 from moving out of the sleeve 209, the limiting protrusion 211 can prevent the sleeve 209 from moving out of the socket shell 201 to the right, and the plug valve core 106 and the socket valve core 202 are both sleeved with sealing rings, so as to ensure the sealing performance.

[0045] The isolation ring 204 is arranged between the guide stop ring 206 and the sleeve 209, the second sealing ring 203 is arranged between the isolation ring 204 and the sleeve 209 and is in contact with the outer wall of the conical movable valve sleeve 208, and the third sealing ring 205 is arranged between the guide stop ring 206 and the isolation ring 204. The isolation ring 204 separates the second sealing ring 203 and the third sealing ring 205, so that the two sealing rings maintain their respective sealing effects. When the floating insertion rod 107 is inserted into the guide stop ring 206, the third sealing ring 205 is first sleeved on the floating insertion rod 107, thereby performing preliminary sealing before the conical movable valve sleeve 208 and the plug valve core 106 are opened. When the end surface of the floating insertion rod 107 has not moved to the position of the second sealing ring 203, the passage of the floating insertion rod 107 is partially opened, and fluid may flow out from the gap between the floating insertion rod 107 and the conical movable valve sleeve 208 due to the large pressure. The third sealing ring 205 can prevent too much fluid from leaking from the gap. After the floating insertion rod 107 passes through the second sealing ring 203, the second sealing ring 203 is sleeved on the floating insertion rod 107 and forms two groups of seals with the third sealing ring 205, thereby preventing fluid from leaking from the gap between the outer wall of the floating insertion rod 107 when the passage of the socket 2 is fully opened. The second sealing ring 203 can also seal the gap between the sleeve 209 and the socket shell 201 to prevent fluid leakage.

[0046] The installation steps of the socket 2 are as follows: Figure 3 The sleeve 209, the conical movable valve sleeve 208 and the second spring 210 are pre-assembled into an integrated body, and then are placed into the socket shell 201 from left to right; and then the second sealing ring 203, the isolation ring 204, the third sealing ring 205 and the guide stop ring 206 are sequentially installed, so that the assembly is simple and fast.

[0047] The socket shell 201 is made of plastic. The socket shell 201 can be slightly deformed to facilitate the clamping of the guide stop ring 206, and the manufacturing cost of the plug 1 is reduced. The guide stop ring 206 can be made of metal or plastic. The isolation ring 204 is made of rubber and can be bent and deformed to facilitate installation. The guide stop ring 206 is provided with a protrusion, the inner wall of the socket shell 201 is provided with a groove matched with the protrusion, or the guide stop ring 206 is provided with a groove, the inner wall of the socket shell 201 is provided with a protrusion, or the guide stop ring 206 and the inner wall of the socket shell 201 are both provided with a groove and a protrusion. The sleeve 209 is made of metal, which can increase the compressive strength of the socket shell 201; the conical movable valve sleeve 208 and the socket valve core 202 are also made of metal to meet the strength requirements during docking.

[0048] The plug shell 101 is provided with an identification ring 4. The identification ring 4 is sleeved on the plug shell 101, and the identification ring 4 on different plugs 1 is different in color, for example, the identification ring 4 on the plug 1 connected with hot water is red, and the identification ring 4 on the plug 1 connected with cold water is blue; the identification ring 4 can be a rubber ring, facilitating sleeving.

[0049] The plug shell 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, facilitating the use of a wrench to tighten the plug 1 and the socket 2 to the pipeline.

[0050] The outer wall of one end of the plug shell 101 close to the retainer ring 108 is provided with a thread, and the outer wall of one end of the socket shell 201 away from the guide retainer ring 206 is provided with a thread, facilitating the connection of the plug shell 101 and the socket shell 201 to the pipeline, and the fourth sealing ring 3 is sleeved on the plug shell 101 and the socket shell 201, so as to seal the gap between the plug shell 101 and the pipeline and the gap between the socket shell 201 and the pipeline, avoiding fluid leakage.

[0051] The above is only the preferred embodiment of the utility model, and is not used for limiting the utility model. For those skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A blind mate connector comprising a plug (1), characterized in that, The plug (1) comprises a plug shell (101), an inner ring (111) movably arranged in the plug shell (101), one end of the inner ring (111) is provided with a floating plug rod (107) movably connected with the plug (1), the other end of the inner ring (111) is provided with a retreat stop ring (108) clamped with the plug (1), both end faces of the inner ring (111) are provided with sealing assemblies, an annular stop groove (113) is formed in the inner wall of the plug shell (101), an annular stop ring (112) is arranged on the outer wall of the floating plug rod (107) and matched with the stop groove (113) to limit the floating plug rod (107) from moving out of the plug shell (101), and an elastic soft pad (102) is mounted in the stop groove (113).

2. A blind mate connector according to claim 1, wherein, The sealing assembly comprises a sealing gasket (110) abutting against the end face of the inner ring (111), and a first sealing ring (109) is abutted against one end of the sealing gasket (110) away from the inner ring (111) and is sleeved on the retreat stop ring (108) and the floating plug rod (107) respectively.

3. A blind mate connector as claimed in claim 1, wherein, The floating plug rod (107) movably seals a plug valve core (106), and one end of the plug valve core (106) close to the retreat stop ring (108) is provided with a first spring (114) abutting against the retreat stop ring (108).

4. A blind mate connector according to claim 1, wherein, The plug shell (101) and the retreat stop ring (108) are made of plastic.

5. A blind mate connector as recited in claim 1, wherein, The end face of the plug shell (101) is provided with a horn mouth (105) for swinging of the floating plug rod (107).

6. A blind mate connector as recited in claim 1, wherein, The socket (2) comprises a socket shell (201), one end face of the socket shell (201) is provided with a guide inclined surface (207), the other end face of the socket shell (201) is provided with a limiting protrusion (211), the socket shell (201) movably arranges a sleeve (209) abutting against the limiting protrusion (211), the sleeve (209) is mounted with a socket valve core (202), the socket valve core (202) movably seals a conical movable valve sleeve (208) for plugging the sleeve (209), the sleeve (209) is provided with a second spring (210) abutting against the conical movable valve sleeve (208), the guide inclined surface (207) is clamped with a guide retreat stop ring (206) for limiting the sleeve (209) from moving out of the socket shell (201).

7. A blind mate connector according to claim 6, wherein, An isolation ring (204) is arranged between the guide retreat stop ring (206) and the sleeve (209), a second sealing ring (203) in contact with the outer wall of the conical movable valve sleeve (208) is arranged between the isolation ring (204) and the sleeve (209), and a third sealing ring (205) is arranged between the guide retreat stop ring (206) and the isolation ring (204).

8. A blind mate connector according to claim 6, wherein, The socket shell (201) is made of plastic.

9. A blind mate connector as recited in claim 1, wherein, The plug shell (101) is provided with an identification ring (4).

10. The blind mate connector of claim 1, wherein, The plug shell (101) is provided with a hexagonal protrusion.

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