Structure of water tank injection quick connector

Abstract

The application discloses a structure of a water tank injection quick connector, which comprises a connecting short pipe, a connecting female head and a connecting male head, wherein the connecting male head and the connecting female head form a quick connector structure; a clamping groove is arranged on the outer periphery of the connecting female head, a female head seal is arranged on the inner periphery of the clamping groove; a clamping head matched with the clamping groove is arranged on the outer periphery of the connecting male head, a male head seal is arranged on the inner periphery of the connecting male head; an expansion part is arranged on the female head seal, the expansion part expands radially outward after water injection, a lock pin structure is correspondingly arranged at the expansion part position, a moving part in the lock pin structure is driven by the expansion part to extend radially out of the outer wall of the female head seal, and an inner recess is arranged on the inner wall of the clamping head. The expansion part is arranged on the side of the female head seal, the radial expansion of the expansion part after water injection is utilized to push the lock pin structure to move, so that the connecting female head and the connecting male head are locked, and thus irrelevant personnel can be prevented from removing the water supply pipe during water injection of the pipeline.

Description

TECHNICAL FIELD

[0001] The application relates to the field of water injection joints for ships, in particular to a structure of a water tank injection quick joint. BACKGROUND

[0002] In the conventional water injection of a ship, a water hose is directly inserted into an injection joint on the ship for many times, which often causes the water hose to slide out of the injection pipe. Since the joint has a certain water pressure caused by water injection, additional binding must be installed in the prior art to fix the joint. This method is not practical and safe. The ship has limited time for supply, and sometimes the water injection pressure is increased to speed up the water injection. The binding method is easy to cause the water injection port to collapse, which not only causes waste of water resources, but also easily causes safety accidents. Secondly, the binding method cannot ensure safety during disassembly. If there is pressure in the joint pipe position during disassembly, the risk during disassembly is large. Or the joint is disassembled by other irrelevant personnel during pressurized water injection, which also causes safety risks. In view of the above, it is necessary to provide a structure of a water tank injection quick joint to solve the above problems. SUMMARY

[0003] The purpose of the application is to solve the above technical problems, and provide a structure of a water tank injection quick joint. The structure can realize quick connection with a water injection port of a ship water tank, and can realize automatic locking of the joint during water injection after connection, so as to avoid irrelevant personnel from disassembling the joint during water injection, or to avoid opening the joint under pressure when pressure is stored in the joint.

[0004] In order to achieve the above purpose, the application adopts the following technical scheme: a structure of a water tank injection quick joint, comprising a water supply flange, a connecting short pipe and a connecting female head, one end of the connecting short pipe is fixedly connected with the water supply flange, the other end is connected with the connecting female head, and the structure further comprises a connecting male head, the connecting male head and the connecting female head form a quick joint structure;

[0005] The connecting female head is penetrated in the axial direction, and a ring of clamping grooves is arranged on the outer periphery of the connecting female head. A female head seal is arranged on the inner periphery of the clamping groove.

[0006] The connecting male head is penetrated in the axial direction, and a clamping head matched with the clamping groove is arranged on the outer periphery of the connecting male head. When the clamping head is clamped into the clamping groove, the quick joint is connected. A male head seal is arranged on the inner periphery of the connecting male head. When the connection is formed, the male head seal and the female head seal abut against each other at the end to form a seal.

[0007] The anti-disengagement safety device is characterized in that the female sealing part is internally provided with a female sealing ring, the female sealing ring is provided with an expansion part, the expansion part expands radially outward after the pressure water is filled, the outer side of the female sealing ring is provided with a locking pin structure, the locking pin structure corresponds to the position of the expansion part, the moving part in the locking pin structure is driven by the expansion part to extend radially out of the outer wall of the female sealing part, the inner wall of the connector is provided with a recessed groove, and the moving part can be inserted into the recessed groove to lock the male connector when the moving part extends out.

[0008] Further, the female sealing part further comprises a sealing ring mounting seat for mounting the female sealing ring, the sealing ring mounting seat is in the shape of a cylindrical ring, the outer periphery of the first end is provided with external threads for screwing with the connector groove, and the second end is an annular opening, and the female sealing ring is mounted in the annular opening.

[0009] Further, the inner wall of the annular opening is provided with two convex rings, a plurality of water through holes are arranged between the two convex rings, and the water through holes correspond to the position of the expansion part.

[0010] Further, the diameter of the female sealing ring matches the diameter of the annular opening, the inner wall of the female sealing ring is provided with two inner ring grooves, the two convex rings are respectively clamped into the inner ring grooves to fix the female sealing ring, the female sealing ring is provided with a sealing edge with an inwardly folded edge at one end of the annular opening, at least two expansion parts are arranged between the two inner ring grooves, and the expansion parts are uniformly and spacedly distributed on the female sealing ring.

[0011] Further, the sealing ring mounting seat is further provided with a mounting bin for mounting the locking pin structure, the mounting bin is arranged on the outer side of the female sealing ring, and the mounting bin comprises a counterbore coaxially arranged with the water through hole, the counterbore is internally provided with a locking pin, a pin hole is arranged through the bottom of the counterbore, and the end of the locking pin can extend out through the pin hole.

[0012] Further, the locking pin comprises a pin rod, a stop ring and a jacking rod, the stop ring is slidingly connected in the counterbore, the pin rod is fixedly arranged on one side of the stop ring along the axial direction, the pin rod is arranged in the pin hole, the jacking rod is arranged on the other side of the stop ring, the jacking rod corresponds to the position of the water through hole, and the locking pin is pushed to move when the expansion part expands outward and abuts against the jacking rod; the side of the stop ring close to the pin hole is provided with a spring.

[0013] Further, the connector groove and the connecting end of the connecting short pipe are provided with a sleeve, the inner wall of the sleeve is provided with internal threads, the end of the connecting short pipe is provided with external threads, the connector groove is screwed on the connecting short pipe through the sleeve, a locking pin is screwed through the side wall of the sleeve, the side wall of the connecting short pipe is provided with a screw hole, and the locking pin is screw-connected with the screw hole.

[0014] Further, the locking pin structure comprises a C-shaped spring sheet capable of deforming, the outer periphery of the sealing ring mounting seat is provided with an outer ring groove, the C-shaped spring sheet is arranged in the outer ring groove, the inner side of both ends of the C-shaped spring sheet is provided with a contact end, and the contact end corresponds to the position of the expansion part.

[0015] Further, through holes are arranged at both ends of the C-shaped spring piece, and the two through holes are connected by a tension spring.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] 1. The connecting male head end is inserted into the connecting female head end, and the structure of the quick connection of the connector is formed, so that the water pipe and the connector can be quickly connected and disconnected.

[0018] 2. The sealing ring in the connecting male head and the connecting female head is in abutment with each other to form a seal, and when the pipe is filled with water, the sealing edges on both sides are expanded to make the connection of the connector more tight and the sealing effect better.

[0019] 3. The expansion part is arranged on the side surface of the female head sealing ring, and the radial expansion movement of the expansion part after being filled with water pushes the lock pin structure to move, so that the connecting female head and the connecting male head are locked, thereby avoiding unrelated personnel from removing the water supply pipe during the water supply process; at the same time, the function of avoiding disassembly under pressure is also achieved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The structure diagram of the connecting female head and the connecting male head of the present application is shown.

[0021] Figure 2 The structure diagram of the locking of the connecting female head and the connecting male head of the present application is shown.

[0022] Figure 3 The structure exploded view of the connecting female head of the present application is shown.

[0023] Figure 4 The structure diagram of the connecting male head of the present application is shown. Figure 1 The structure diagram of the A-A cross section of the present application is shown.

[0024] Figure 5 The structure diagram of the fourth embodiment of the present application is shown.

[0025] Figure 6 The structure diagram of the second embodiment of the fourth embodiment of the present application is shown.

[0026] Figure 7 The structure diagram of the end cover of the quick connector of the water tank of the present application is shown.

[0027] In the diagram: 1. Water supply flange; 2. Connecting short pipe; 3. Connecting female connector; 4. Connecting male connector; 5. Snap-fit ​​groove; 6. Female connector seal; 7. Snap-fit ​​connector; 8. Male connector seal; 9. Female connector sealing ring; 10. Expansion part; 11. Locking pin structure; 12. Recessed groove; 13. Sealing ring mounting seat; 14. Raised ring; 15. Water passage hole; 16. Inner ring groove; 17. Sealing edge; 18. Countersunk hole; 19. Pin hole; 20. Pin rod; 21. Retaining ring; 22. Push rod; 23. Spring; 24. Locking pin; 25. C-shaped spring; 26. Outer ring groove; 27. Contact end; 28. Through hole; 29. ​​Tension spring. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Example 1:

[0029] The structure of a water tank injection quick connector, such as Figure 1 As shown, the quick-connect structure includes a water supply flange 1, a connecting short pipe 2, and a connecting female 3. The water supply flange 1 is matched with the flange at the end of the injection structure on the hull. The entire quick-connect structure is connected to the water inlet flange on the hull through the water supply flange 1, thereby forming a joint on the water inlet of the hull that facilitates quick connection. One end of the connecting short pipe is fixedly connected to the water supply flange 1, and the other end is connected to the connecting female 3. It also includes a connecting male 4, which can be a connector on the water pipe section at the water source end. The connecting male 4 and the connecting female 3 form a quick-connect structure. When the connecting male 4 and the connecting female 3 are connected, they form a complete pipeline connection.

[0030] The female connector 3 is axially continuous, and a retaining groove 5 is provided around its outer periphery; the male connector 4 is axially continuous, and a retaining connector 7 that mates with the retaining groove 5 is provided around its outer periphery. Figure 2 As shown, when the snap-fit ​​connector 7 is snapped into the snap-fit ​​groove 5, the quick connector is connected. The snap-fit ​​connector 7 and the snap-fit ​​groove 5 can be similar to the snap-fit ​​structure of the commonly used fire-fighting universal connector in the prior art. The snap-fit ​​connector 7 is first snapped into the snap-fit ​​groove 5, and then the connection is achieved by rotation. A female head seal 6 is provided on the inner circumference of the snap-fit ​​groove 5, and a male head seal 8 is provided on the inner circumference of the male head 4. When the connection is formed, the ends of the male head seal 8 and the female head seal 6 abut against each other to form a seal.

[0031] To address the risks mentioned in the background art regarding preventing unauthorized personnel from disconnecting the pipeline during water delivery or avoiding the risk of disassembly under pressure after delivery, a safety mechanism is specifically designed to prevent detachment. Specifically, the female seal 6 contains a female seal ring 9, which is installed within a seal ring mounting base 13. The seal ring mounting base 13 is cylindrical and annular, with an external thread at its first end that engages with the locking groove 5, and an annular opening at its second end. The female seal ring 9 is installed within this annular opening, and the inner and outer rings of the seal ring mounting base 13 clamp and fix the female seal ring 9, thus securing it. For a more stable fixation, ... Figure 3 As shown, two raised rings 14 are provided on the inner wall of the annular opening, and two inner annular grooves 16 are provided on the inner wall of the female sealing ring 9. The two raised rings 14 are respectively inserted into the inner annular grooves 16 to fix the female sealing ring 9. During installation, the raised rings 14 are inserted into the inner annular grooves 16, thereby improving the limiting and sealing effect. The female sealing ring 9 is provided with an expansion part 10, and at least two expansion parts 10 are provided between the two inner annular grooves 16. The expansion parts 10 are evenly distributed on the female sealing ring 9. After pressurized water is filled in, the expansion parts 10 expand radially outward. In order for the expansion parts 10 to sense the water flow and water pressure inside the pipeline, multiple water passage holes 15 are provided between the two raised rings 14. The water passage holes 15 correspond to the positions of the expansion parts 10; that is, when pressurized water flows inside the pipeline, water can enter the water passage holes 15 and push the expansion parts 10 outward. Example 2:

[0032] In this embodiment, a locking pin structure 11 is provided to cooperate with the radial expansion movement of the expansion part 10. The locking pin structure 11 is located outside the expansion part 10 and corresponds to the position of the expansion part 10. The moving part inside the locking pin structure 11 is driven by the expansion part 10 to extend radially out of the outer wall of the female head seal 6. When the locking pin structure 11 extends out of the outer wall of the female head seal 6, it forms an automatic locking mechanism that can sense pressurized water. Furthermore, an inner groove 12 is provided on the inner wall of the snap connector 7. Figure 2 As shown, at this time, the expansion part 10 pushes the action part of the locking pin structure 11 radially outward. When the action part of the locking pin structure 11 extends, it can be inserted into the recessed groove 12 to lock the connecting male head 4. In this way, when water is injected into the pipeline during pipeline connection, the pipeline connection can be automatically driven by the pressure water to achieve self-locking between the pipelines, avoiding disassembly and other operations by other personnel during water injection. Example 3:

[0033] As one embodiment of the locking pin structure 11, the sealing ring mounting base 13 is provided with a mounting cavity for mounting the locking pin structure 11, such as... Figure 3 , Figure 4As shown, the mounting bin is arranged outside the female head sealing ring 9, and the mounting bin includes a counterbore 18 coaxially arranged with the water passage hole 15, a locking pin is arranged inside the counterbore 18, a pin hole 19 is arranged through the bottom of the counterbore 18, and the end of the locking pin can extend out through the pin hole 19. Moreover, the locking pin includes a pin rod 20, a blocking ring 21, and a top rod 22, the blocking ring 21 is slidingly connected inside the counterbore 18, so that the locking pin can move in the radial direction, the pin rod 20 is fixedly arranged on one side of the blocking ring 21 along the axis direction, the pin rod 20 is arranged inside the pin hole 19, when the locking pin moves, the pin rod 20 can move in and out of the pin hole 19, the top rod 22 is arranged on the other side of the blocking ring 21, the top rod 22 is arranged for more sensitive sensing of the deformation of the expansion part 10, the top rod 22 is opposite to the water passage hole 15, when the expansion part 10 expands outward, the top rod 22 pushes the locking pin to move; the blocking ring 21 is provided with a spring 23 on the side close to the pin hole 19; when there is no water inside, the locking pin is retracted in the radial direction under the action of the spring 23 and compresses the expansion part 10 to reset, at this time, the connection between the male head 4 and the female head 3 is unlocked. Embodiment four:

[0034] As another embodiment of the locking pin structure 11, as shown in Figure 5 , Figure 6 the locking pin structure 11 includes a deformable C-shaped spring sheet 25, the C-shaped spring sheet 25 is a sheet with a certain width, the outer periphery of the sealing ring mounting seat 13 is provided with an outer ring groove 26, the C-shaped spring sheet 25 is arranged in the outer ring groove 26, one side of the outer ring groove 26 is used for placing the C-shaped spring sheet 25, and the other side can be provided with a pull spring 29 for auxiliary resetting, the two ends of the pull spring 29 are in the form of hooks, through holes 28 are arranged through the two ends of the C-shaped spring sheet 25, the two through holes 28 are connected by the pull spring 29, and the hooks are hooked at the through holes 28. The inner side of the two ends of the C-shaped spring sheet 25 is provided with a contact end 27, which has a similar function to the top rod 22 in Embodiment three, and is used for directly contacting the expansion part 10 for sensing the change, the contact end 27 corresponds to the position of the expansion part 10, as shown in Figure 6 the deformation state of the C-shaped spring sheet 25 when the expansion part 10 expands outward, the expansion part 10 protrudes outward in the radial direction, directly pushes the contact end 27 to move outward to make the C-shaped spring sheet 25 expand outward on both sides, and the outer side extends out of the outer side of the sealing ring mounting seat 13, that is, is clamped into the inward groove 12 of the connection male head 4, so as to fix the multiple female heads 3 and the connection male head 4. Embodiment five:

[0035] As shown in Figure 1 the female head sealing ring 9 is provided with a sealing edge 17 inwardly folded at one end of the protruding annular opening, and the sealing edge 17 can also be correspondingly arranged at the male head sealing ring 8, when the female head 3 and the male head 4 are connected, the sealing edges 17 at both ends abut and seal each other.

[0036] As Figure 7 shown, the connecting end of the connecting short pipe 2 is provided with a sleeve, the inner wall of the sleeve is provided with internal threads, the end of the connecting short pipe 2 is provided with external threads, the clamping groove 5 is screwed on the connecting short pipe 2 through the sleeve, a locking pin 24 is screwed through the side wall of the sleeve, the side wall of the connecting short pipe 2 is provided with a screw hole, the locking pin 24 is screwed with the screw hole, so as to firmly fix the connecting female head 3 on the connecting short pipe 2; as Figure 7 shown, the connecting male head 4 can also be provided as an end cover for sealing the interface, so that the connecting female head 3 can be blocked, preventing sundries from entering, and facilitating quick connection of the water injection pipeline.

[0037] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A structure of a water tank filling quick coupling, characterized by, The utility model provides a quick connector structure of water supply, including water supply flange (1), connecting short pipe (2), connecting female head (3), one end of connecting short pipe is fixedly connected with water supply flange (1), is equipped with connecting female head (3) at the other end, still include connecting male head (4), and connecting male head (4) with connecting female head (3) form quick connector structure, Connecting female head (3) is through in axial direction, and the outer periphery of connecting female head (3) is equipped with a circle of clamping groove (5), and the inner periphery of clamping groove (5) is equipped with female head seal (6), Connecting male head (4) is through in axial direction, and the outer periphery of connecting male head (4) is equipped with the clamping head (7) of cooperation with clamping groove (5), and when clamping head (7) is clamped into clamping groove (5), quick connector is formed connection, and the inner periphery of connecting male head (4) is equipped with male head seal (8), and when connecting, male head seal (8) and female head seal (6) end portion mutually abut and form seal, Anti -drop insurance, the inside of female head seal (6) is equipped with female head seal ring (9), and the expansion part (10) is equipped on female head seal ring (9), and after pressure water fills in, expansion part (10) expands along the radial direction to the outside, and the outside of female head seal ring (9) is equipped with lock pin structure (11), and lock pin structure (11) and expansion part (10) position correspond, and the action part in lock pin structure (11) is driven along the radial direction to the outer wall of female head seal (6) part and stretches out, the inner wall of clamping head (7) is equipped with recess (12), and when the action part stretches out, can be inserted recess (12) and lock connecting male head (4); Female head seal (6) still includes seal ring mounting seat (13) of female head seal ring (9) installation, seal ring mounting seat (13) is cylindrical ring, and the outer periphery of first end is equipped with the outer thread of screwing with clamping groove (5), and the second end is annular opening, and female head seal ring (9) is installed in annular opening, The installation warehouse of lock pin structure (11) is further equipped in seal ring mounting seat (13), and the installation warehouse is arranged at the outside of female head seal ring (9), and the installation warehouse includes the counterbore (18) of coaxial arrangement with water through hole (15), and the lock pin is arranged in the inside of counterbore (18), and the pin hole (19) is arranged through the bottom of counterbore (18), and the end of lock pin can be inserted pin hole (19) and stretch out.

2. A water tank filling quick connector according to claim 1, characterized in that The inner wall of annular opening is projected and is equipped with two convex rings (14), and a plurality of water through holes (15) are arranged between two convex rings (14), and water through hole (15) and expansion part (10) position correspond.

3. A water tank filling quick coupling according to claim 2, characterised in that The diameter of female head seal ring (9) and annular opening cooperate, and the inner wall of female head seal ring (9) is equipped with two inner ring grooves (16), and two convex rings (14) are clamped into inner ring groove (16) respectively and fix female head seal ring (9), and the end of female head seal ring (9) that projects annular opening is equipped with the sealing edge (17) of inwardly folded edge, and at least two expansion parts (10) are arranged between two inner ring grooves (16), and expansion part (10) is evenly spaced distribution on female head seal ring (9).

4. A water tank filling quick coupling according to claim 3, characterised in that The lock pin comprises a pin rod (20), a blocking ring (21) and a top rod (22), the blocking ring (21) is slidingly connected in the counterbore (18), the blocking ring (21) is fixedly arranged with the pin rod (20) on one side along the axial direction, the pin rod (20) is arranged in the pin hole (19), the top rod (22) is arranged on the other side of the blocking ring (21), the top rod (22) is opposite to the water hole (15), when the expansion part (10) expands outward, the top rod (22) is pushed to move the lock pin; the blocking ring (21) is provided with a spring (23) on the side close to the pin hole (19).

5. A water tank filling quick connector according to claim 3, wherein The connecting end of the clamping groove (5) and the connecting short pipe (2) is provided with a sleeve, the inner wall of the sleeve is provided with an internal thread, the end of the connecting short pipe (2) is provided with an external thread, the clamping groove (5) is screwed on the connecting short pipe (2) through the sleeve, the locking pin (24) is screwed through the side wall of the sleeve, the side wall of the connecting short pipe (2) is provided with a screw hole, and the locking pin (24) is screw-connected with the screw hole.

6. A water tank filling quick connector according to claim 3, wherein The lock pin structure (11) comprises a deformable C-shaped spring sheet (25), the outer periphery of the sealing ring mounting seat (13) is provided with an outer ring groove (26), the C-shaped spring sheet (25) is arranged in the outer ring groove (26), the inner side of the two ends of the C-shaped spring sheet (25) is provided with a contact end (27), and the contact end (27) is opposite to the position of the expansion part (10).

7. A water tank filling quick coupling according to claim 6, characterised in that Through holes (28) are arranged at the two ends of the C-shaped spring sheet (25), and the two through holes (28) are connected through a tension spring (29).

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