Anti-falling universal rapid water hose connector

Abstract

The invention relates to the technical field of fire hose connectors, in particular to an anti-falling universal rapid hose connector which comprises two connector single bodies, and the structures of the two connector single bodies are the same. During butt joint, the two interface monomers are symmetrically arranged; each connector single body comprises a water hose fixing assembly, a self-adjusting reset assembly and a butt joint assembly. The self-adjusting reset assembly comprises a first rotatable inner connector, a plane bearing and a bearing seat, one end of the first rotatable inner connector is connected with the water hose fixing assembly, the other end of the first rotatable inner connector is connected with the butt joint assembly through the plane bearing and the bearing seat, and the first rotatable inner connector and the butt joint assembly can freely rotate through the plane bearing. The connector is integrated with male and female, is simple in structure and easy and convenient to operate, avoids the situation that the male and female ends of the connector are taken mistakenly to affect butt joint efficiency, and saves production cost; compared with an existing male and female integrated connector, the self-adjusting reset assembly allows relative rotation between the connector assemblies to counteract additional torque generated at the connector when a water hose is reeled and wound, and the situations that the connector bears the additional torque and is tripped and damaged, the knotting water blocking phenomenon occurs, and even tripped and hurt people are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of fire hose interfaces, and in particular to an anti-dropping universal quick hose interface, which is a convenient fire hose dedicated interface in which a fire hose and an interface are connected in an integrated manner. Background Art

[0002] A fire hose docking joint is a device specially designed to connect two sections of fire hose, making it possible to extend the length of the hose or change the direction of water flow.

[0003] At the emergency fire scene, every second counts, and the hose interface requires quick docking. In order to improve the connection efficiency and avoid the wrong interface, the demand and application prospects of hermaphroditic pipe interfaces are very large. The Chinese patent with announcement number CN106439327A discloses a new type of fire hose pipe joint, which is composed of a locking part protruding radially outward on the front end of the inner tube and an elastic locking tongue protruding inward on the inner surface of the front end of the outer tube; the Chinese patent with announcement number CN102758981B discloses a fire hose joint, which is composed of a hermaphroditic pipe joint through the repulsive clamping of magnets.

[0004] However, it is worth considering that the above two types of male and female pipe joints have single functions and too large connection rigidity. When the connecting water hose is not straight enough and becomes curled and entangled, a large torque will be generated at the pipe joint after water is passed through. The joint cannot adjust itself to adapt to the torque and there is a risk of detachment.

[0005] Therefore, in order to solve the above problems, a related facility that better meets the usage requirements is needed. Summary of the invention

[0006] In view of this, the purpose of the present invention is to propose an anti-detachment universal quick hose interface to solve the problem that the existing male and female same-body pipe interface is easily detached when subjected to additional torque when connecting the rolled and wound hose.

[0007] Based on the above-mentioned purpose, the present invention provides an anti-detachment universal quick water hose interface, including two interface monomers, the two interface monomers have the same structure, and the two interface monomers are symmetrically arranged during and after docking; the interface monomers include a water hose fixing component, a self-adjusting and resetting component and a docking component; the self-adjusting and resetting component includes a first rotatable inscribed connection, a plane bearing and a bearing seat, one end of the first rotatable inscribed connection is connected to the water hose fixing component, and the other end is connected to the docking component through a plane bearing and a bearing seat, and the first rotatable inscribed connection can rotate freely between the plane bearing and the docking component.

[0008] In order to further improve the sealing performance of the plane bearing, a first water-proof sealing ring is provided on the outer sleeve of the bearing seat; the plane bearing can adopt a double-row ball plane bearing.

[0009] Through the above technical solution, the first rotatable inscribed member can rotate freely between the plane bearing and the docking assembly. When the fire hose is wound at the interface, the first rotatable inscribed member can be rotated while high-pressure water is passed, so as to achieve the reset of the hose, thereby offsetting the torque generated at the interface by the reset of the wound hose. In addition, in the case of insufficient water pressure, the hose can be manually adjusted by manually rotating the first rotatable inscribed member to solve the water blocking problem at the knot.

[0010] Further, the docking assembly includes a second rotatable inner and outer locking joints, the outer side of the second rotatable inner is fixedly connected with a limiting ring and is sleeved with a locking nut, the limiting ring is used to limit the position of the locking nut, the second rotatable inner is threadedly connected to the bearing seat, the plane bearing is sleeved on the outer side of the bearing seat, the plane bearing and the bearing seat together with the second rotatable inner are embedded in the first rotatable inner, the outer side of the first rotatable inner is provided with an axial connecting thread, the inner side of the locking nut is provided with an internal thread adapted to the axial connecting thread, and the locking nut is used for axial fixation of the first rotatable inner and the second rotatable inner. In addition to limiting the position of the locking nut, the limiting ring here also limits the position of the bearing seat. When designing the length of the second rotatable inner, the position of the limiting ring should be fully considered to ensure that the expanded clamping joint has enough length for extending the outer locking joint. The inner diameter of the locking nut here should be larger than the outer diameter of the second rotatable inner. The fixing of the limiting ring adopts a threaded connection method and shares the thread with the bearing seat.

[0011] Furthermore, the end of the second rotatable inner connection away from the bearing seat is fixedly connected to the enlarged card joint, the outer diameter of the main part of the enlarged card joint is larger than the outer diameter of the second rotatable inner connection, the outer diameter of the main part of the enlarged card interface is equal to the outer diameter of the limiting ring, and a tapered section is provided at the end of the enlarged card joint away from the bearing seat, and the enlarged card joint and the tapered section are inserted into and clamped in the external locking joint.

[0012] Furthermore, the external locking joint includes a fixing portion, a docking portion and a docking clamp ring, the inner diameter of the opening of the fixing portion close to the end of the enlarged clamping joint is equal to the second rotatable inner outer diameter, the docking clamp ring is placed in the docking portion, the inner diameter of the docking clamp ring is the same as the outer diameter of the main body of the enlarged clamping joint, an elastic variable diameter block is arranged on the inner side of the docking clamp ring, one side of the elastic variable diameter block is straight and the other side is a gradual slope, and the tapered section is adapted to the gradual slope of the elastic variable diameter block.

[0013] Furthermore, a clamping slider is provided at the other end of the enlarged clamping joint, and during the rotation process, the second rotatable inner connection presses against the elastic variable diameter clamping block and forces the elastic variable diameter clamping block to retract into the docking clamping ring so that the second rotatable inner connection extends out of the external locking joint.

[0014] Furthermore, a second water-proof sealing ring is provided in the gap between the tapered section and the docking portion.

[0015] Furthermore, the water hose fixing assembly includes an inner lining and a locking joint; the first rotatable inner connection includes a water hose fixing portion and a water hose fixing thread, the water hose fixing portion is externally sleeved with an inner lining, and a locking joint adapted to the water hose fixing thread is disposed on the outer side of the inner lining.

[0016] Furthermore, there are three clamping slide blocks and three elastic variable diameter clamping blocks, which are evenly distributed.

[0017] Furthermore, a screw hole is provided along the longitudinal direction of the docking portion, and a screw, a spring and a damping steel ball are provided in sequence in the screw hole. The damping steel ball is slightly exposed from the docking portion, and a damping groove matched with the damping steel ball is provided along the longitudinal direction of the expanded card joint. The damping steel ball is embedded in the damping groove to damp the rotation of the second rotatable inscribed part.

[0018] Beneficial effects of the present invention: 1. The anti-drop universal quick hose interface of the present invention is a male-female monobody. During docking, the second rotatable inner joint of any interface monomer can be extended out of the locking interface and inserted into the locking joint of another interface monomer, thereby realizing male-female quick docking. The structural design is ingenious, the operation is simple and quick, and the two interface monomers have the same structure, so batch production is possible with only one set of processing technology and molds, thus saving costs.

[0019] 2. The anti-detachment universal quick water hose interface of the present invention is provided with a self-adjusting reset component, which allows the relative rotation between the interface components to offset the additional torque generated at the joint when the coiled and wound water hose is reset through water, thereby preventing the interface from being disengaged and damaged due to the additional torque, or even causing injury under the output of high-pressure water.

[0020] 3. The anti-drop universal quick water hose interface of the present invention can also be used for civil irrigation, liquid transportation, etc. When the water pressure is insufficient, the water hose is rolled up or knotted, and the first rotatable inner part can be manually rotated to manually adjust the water hose to solve the water blocking problem at the knot, and the operation is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 It is a schematic diagram of the overall decomposition structure of the embodiment of the present invention; Figure 3 It is a schematic diagram of the exploded structure of the hose fixing assembly according to an embodiment of the present invention; Figure 4 It is a schematic diagram of the exploded structure of the self-adjusting reset component according to an embodiment of the present invention; Figure 5It is a schematic diagram of the exploded structure of the locking joint according to an embodiment of the present invention.

[0022] Figure 6 It is a schematic diagram of the local structure of the docking part of the present invention.

[0023] Markings in the figure are: 1. first rotatable inscribed part; 101. water hose fixing part; 102. water hose fixing thread; 103. axial connecting thread; 2. lining; 3. locking joint; 4. plane bearing; 5. bearing seat; 501. first anti-leakage water sealing ring; 6. second rotatable inscribed part; 601. limiting ring; 602. second anti-leakage water sealing ring; 7. locking nut; 8. enlarged clamping joint; 801. tapered section; 802. clamping slider; 803. damping groove; 9. external locking joint; 901. fixing part; 902. docking part; 9021. docking fixing clamping ring; 10. docking clamping ring; 1002. elastic variable diameter clamping block; 90201. screw hole; 90202. screw; 90203. spring; 90204. damping steel ball; 11. interface monomer. DETAILED DESCRIPTION

[0024] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0025] This embodiment provides a universal quick hose connector that is anti-dropping, such as Figure 2 As shown, it includes two interface monomers 11, the two interface monomers 11 have the same structure, and when docked, the two interface monomers are symmetrically arranged; The joint monomer 11 includes a hose fixing assembly, a self-adjusting and resetting assembly and a docking assembly; the self-adjusting and resetting assembly includes a first rotatable inscribed member 1, a plane bearing 4 and a bearing seat 5. One end of the first rotatable inscribed member 1 is connected to the hose fixing assembly, and the other end is connected to the docking assembly through the plane bearing 4 and the bearing seat 5. The first rotatable inscribed member 1 can rotate freely between the plane bearing 4 and the docking assembly. In order to further improve the sealing performance at the plane bearing 4, a first anti-leakage sealing ring 501 is sleeved on the outside of the bearing seat 5; the plane bearing 4 adopts a double-row ball plane bearing.

[0026] like Figure 1 and Figure 2As shown, the docking assembly includes a second rotatable inscribed member 6 and an external locking joint 9. The outer side of the second rotatable inscribed member 6 is fixedly connected to a limiting ring 601 and is sleeved with a locking nut 7. The inner diameter of the locking nut 7 should be larger than the outer diameter of the second rotatable inscribed member 6. The limiting ring 601 is used to limit the position of the locking nut 7. The second rotatable inscribed member 6 is threadedly connected to the bearing seat 5. The plane bearing 4 is sleeved on the outer side of the bearing seat 5. The plane bearing 4 and the bearing seat 5 together with the second rotatable inscribed member 6 are embedded in the first rotatable inscribed member 1. The outer side of the first rotatable inscribed member 1 is provided with an axial connecting thread 103. The inner side of the locking nut 7 is provided with an internal thread matched with the axial connecting thread 103. The locking nut 7 is used for axial fixation of the first rotatable inscribed member 1 and the second rotatable inscribed member 6. In addition to limiting the position of the locking nut 7, the limiting ring 601 here also limits the position of the bearing seat 5. The fixing of the limiting ring 601 adopts a threaded connection method and shares the thread with the bearing seat 5. When designing the length of the second rotatable inscribed portion 6 , the position of the limiting ring 601 should be fully considered to ensure that the enlarged clamping joint 8 has sufficient length to extend out of the outer locking joint 9 .

[0027] like Figure 2 and Figure 4 As shown, the end of the second rotatable inscribed part 6 away from the bearing seat 5 is fixedly connected to the enlarged clamping joint 8, the outer diameter of the main part of the enlarged clamping joint 8 is larger than the outer diameter of the second rotatable inscribed part 6, the outer diameter of the main part of the enlarged clamping joint 8 is equal to the outer diameter of the limiting ring 601, and the end of the enlarged clamping joint 8 away from the bearing seat 5 is provided with a tapered section 801, and the enlarged clamping joint 8 and the tapered section 801 are inserted and clamped in the outer locking joint 9. The second rotatable inscribed part 6 is inserted into the outer locking joint 9, the locking nut 7 is inserted, the limiting ring 601 is screwed into the thread, and then the bearing seat 5 is screwed in, the plane bearing 4 is assembled, and the whole is inserted into the first rotatable inscribed part 1, and the locking nut 7 is tightened; in order to facilitate processing and production and enhance strength, the second rotatable inscribed part 6, the enlarged clamping joint 8 and the tapered section 801 are designed as an integral structure.

[0028] like Figure 5As shown, the outer locking joint 9 includes a fixing portion 901, a docking portion 902 and a docking collar 10. The inner diameter of the opening of the fixing portion 901 near the end of the enlarged clamping joint 8 is equal to the outer diameter of the second rotatable inscribed portion 6. The docking collar 10 is placed in the docking portion 902. The inner diameter of the docking collar 10 is the same as the outer diameter of the main part of the enlarged clamping joint 8. Three uniformly distributed elastic variable diameter blocks 1002 are arranged inside the docking collar 10. One side of the elastic variable diameter block 1002 is straight and the other side is a gradual slope. The tapered section 801 is adapted to the gradual slope of the elastic variable diameter block 1002. Three uniformly distributed clamping sliders 802 are arranged at the other end of the enlarged clamping joint 8. During the rotation process of the second rotatable inscribed portion 6, the clamping slider 802 presses against the elastic variable diameter block 1002 and forces the elastic variable diameter block 1002 to retract into the docking collar 10 so that the second rotatable inscribed portion 6 can extend out of the outer locking joint 9. In order to further improve the sealing performance, a second anti-leakage sealing ring 602 is provided in the gap between the tapered section 801 and the docking portion 902 .

[0029] like Figure 3 As shown, the hose fixing assembly includes an inner liner 2 and a locking joint 3; the first rotatable inner liner 1 includes a hose fixing portion 101 and a hose fixing thread 102, the outer portion of the hose fixing portion 101 is covered with an inner liner 2, and the outer side of the inner liner 2 is provided with a locking joint 3 adapted to the hose fixing thread 102. When connecting the hose, the hose is put on the hose fixing portion 101, and the inner liner is pressed against the outer side of the hose, and the locking joint 3 is screwed to firmly fix the hose on the hose fixing portion 101.

[0030] like Figure 6 As shown, a screw hole 90201 is longitudinally arranged on the docking portion 902, and a screw 90202, a spring 90203 and a damping steel ball 90204 are arranged in sequence in the screw hole 90201. The damping steel ball 90204 is slightly exposed from the docking portion 902, and a damping groove 803 matched with the damping steel ball 90204 is longitudinally arranged on the expanded clamping joint 8. The damping steel ball 90204 is embedded in the damping groove 803 to damp the rotation of the second rotatable inscribed portion 6.

[0031] Assembly process and working principle: Assembly of the interface unit: first pass the second rotatable inner part 6 through the external locking joint 9, let the expanded clamping joint 8 be clamped in the fixing part 901, then insert the locking nut 7 into the second rotatable inner part 6, screw in the limiting fixing ring 601 and the bearing seat 5, assemble the first anti-leakage water sealing ring 501 and the plane bearing 4, and after assembly, insert it into the first rotatable inner part 1, and tighten the locking nut 7 and the axial connection thread 103 on the first rotatable inner part 1. Put the liner 2 and the locking joint 3 on the outside of the water hose (not shown in the figure), and then put them together on the tail of the first rotatable inner part 1, and tighten the locking joint 3 and the axial connection thread 103 on the first rotatable inner part 1 to achieve the connection of the water hose.

[0032] When two interface monomers are docked, first extend the second rotatable inscribed joint 6 of one of the interface monomers out of the external locking joint 9, and the extended part (enlarged card joint 8) is directly inserted into the docking part 902 of the other interface monomer, and the tapered section 801 of the enlarged card joint 8 squeezes the gradual slope of the elastic variable diameter block 1002. After successfully passing through the fixed part 901, the enlarged card joint 8 is fixed to the straight side of the elastic variable diameter block 1002. At this time, the second rotatable inscribed joint 6 of the two interfaces are aligned, and sealing is achieved through the second anti-leakage sealing ring 602, thereby completing the clamping of the two male and female anti-detachment universal rapid water hose interfaces.

[0033] The structural design of the present invention not only realizes the quick connection of the hose interface regardless of male or female, but also when the hose is rolled and wound, the pressure and momentum of the high-pressure water can drive the first rotatable inner part to rotate, thereby realizing the automatic rotation and reset of the hose and eliminating the additional torque at the hose connection interface. The self-adjusting reset component of the present invention adopts bearing rotation, which is stable and reliable, with little wear between the components of the interface and no impact on the service life.

Claims

1. A universal quick hose interface for preventing detachment, comprising two interface monomers (11), characterized in that: The two interface monomers (11) have the same structure, and when docked, the two interface monomers are symmetrically arranged; The interface monomer (11) comprises a hose fixing component, a self-adjusting and resetting component and a docking component; The self-adjusting and resetting component comprises a first rotatable inscribed member (1), a plane bearing (4) and a bearing seat (5); one end of the first rotatable inscribed member (1) is connected to the water hose fixing component, and the other end is connected to the docking component via the plane bearing (4) and the bearing seat (5); the first rotatable inscribed member (1) can rotate freely between the plane bearing (4) and the docking component.

2. The anti-drop universal quick hose connector according to claim 1, characterized in that: The outer sleeve of the bearing seat (5) is provided with a first water-proof sealing ring (501).

3. The anti-drop universal quick hose connector according to claim 1 is characterized in that: The docking assembly comprises a second rotatable inner joint (6) and an outer locking joint (9), The outer side of the second rotatable inscribed member (6) is fixedly connected to a limiting ring (601) and is sleeved with a locking nut (7), the limiting ring (601) is used to limit the position of the locking nut (7), the second rotatable inscribed member (6) is threadedly connected to the bearing seat (5), the plane bearing (4) is sleeved on the outer side of the bearing seat (5), the plane bearing (4) and the bearing seat (5) together with the second rotatable inscribed member (6) are embedded in the first rotatable inscribed member (1), the outer side of the first rotatable inscribed member (1) is provided with an axial connecting thread (103), the inner side of the locking nut (7) is provided with an internal thread matched with the axial connecting thread (103), and the locking nut (7) is used for axially fixing the first rotatable inscribed member (1) and the second rotatable inscribed member (6).

4. The anti-drop universal quick hose connector according to claim 3 is characterized in that: The end of the second rotatable inscribed portion (6) away from the bearing seat (5) is fixedly connected to an enlarged card joint (8); the inner diameter of the main part of the enlarged card joint (8) is greater than the outer diameter of the second rotatable inscribed portion (6); the outer diameter of the main part of the enlarged card joint (8) is equal to the outer diameter of the limiting ring (601); a tapered section (801) is provided at the end of the enlarged card joint (8) away from the bearing seat (5); the enlarged card joint (8) and the tapered section (801) are inserted into and clipped into the external locking joint (9).

5. The anti-drop universal quick hose connector according to claim 4 is characterized in that: The external locking joint (9) comprises a fixing portion (901), a docking portion (902) and a docking collar (10). The inner diameter of the opening of the fixed portion (901) close to the end of the enlarged card joint (8) is equal to the outer diameter of the second rotatable inscribed portion (6); the docking clamp ring (10) is placed in the docking portion (902); the inner diameter of the docking clamp ring (10) is the same as the outer diameter of the main body of the enlarged card joint (8); an elastic variable diameter clamp block (1002) is arranged on the inner side of the docking clamp ring (10); one side of the elastic variable diameter clamp block (1002) is straight and the other side is a gradually changing slope; the tapered section (801) is adapted to the gradually changing slope of the elastic variable diameter clamp block (1002).

6. The anti-drop universal quick hose connector according to claim 5, characterized in that: The other end of the enlarged clamping joint (8) is provided with a clamping slider (802), and during the rotation of the second rotatable inner joint (6), the clamping slider (802) presses against the elastic variable diameter clamping block (1002) and forces the elastic variable diameter clamping block (1002) to retract into the docking clamp ring (10) so that the second rotatable inner joint (6) extends out of the external locking joint (9).

7. The anti-drop universal quick hose connector according to claim 5 or 6, characterized in that: A second water-proof sealing ring (602) is provided in the gap between the tapered section (801) and the docking portion (902).

8. The anti-drop universal quick hose connector according to claim 1 is characterized in that: The hose fixing assembly comprises an inner lining (2) and a locking joint (3); The first rotatable inscribed portion (1) comprises a water hose fixing portion (101) and a water hose fixing thread (102). The water hose fixing portion (101) is externally sleeved with an inner lining (2), and a locking joint (3) adapted to the water hose fixing thread (102) is disposed on the outer side of the inner lining (2).

9. The anti-drop universal quick hose connector according to claim 5, characterized in that: There are three of each of the clamping slide blocks (802) and the elastic variable diameter clamp blocks (1002), which are evenly distributed.

10. The anti-drop universal quick hose connector according to claim 5, characterized in that: A screw hole (90201) is provided longitudinally on the upper side of the docking portion (902), a screw (90202), a spring (90203) and a damping steel ball (90204) are provided in sequence in the screw hole (90201), the damping steel ball (90204) slightly protrudes from the docking portion (902), a damping groove (803) adapted to the damping steel ball (90204) is provided longitudinally on the upper side of the enlarged clamping joint (8), the damping steel ball (90204) being embedded in the damping groove (803) to damp the rotation of the second rotatable inscribed portion (6).

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