A water hose interface

Abstract

The present invention discloses a connector for a water hose, which relates to the technical field of fire-fighting equipment. The key points of its technical solution are: it includes an interface body and a control ring, the control ring is movably arranged on the interface body, a slide groove is provided on the interface body, the length direction of the slide groove is the same as the movable direction of the control ring, and a limiter is provided on the control ring to slide with the slide groove. The limiter is provided on the control ring, and the slide groove is provided on the interface body, or the position of the limiter and the slide groove are swapped; the control ring is assembled with the interface body so that the limiter can extend into the slide groove, and during the movement of the control ring, the limiter follows the control ring to slide along the length direction of the slide groove; that is, the interface body and the control ring are limited by the cooperation of the limiter and the slide groove, thereby ensuring that the control ring will not be separated from the interface body, and the limiting method is simple, which is convenient for assembly, production and subsequent improved design.

Description

Technical Field

[0001] The present invention relates to the technical field of fire-fighting equipment, in particular to a hose interface. Background Art

[0002] During firefighting and rescue operations, hoses are often used to transport water from a source to a target area. To reduce the cost of replacing damaged hoses and facilitate storage, hoses are typically fixed in length. During firefighting and rescue operations, hoses are often connected using connectors to extend their length. Because firefighting water is high-pressure, residual water and pressure remain within the hoses after the operation is complete. In this state, the connectors are difficult to loosen, making the hoses difficult to disassemble.

[0003] Chinese patent publication number CN210179128U discloses a remote water supply interface with pressure relief, comprising a first tube body and a second tube body nested within the first tube body. The first tube body has a first drain hole formed on its outer wall, and a drain cap is rotatably connected to the outer wall of the first tube body. The drain cap has a second drain hole formed on the drain cap, which is connected to the first drain hole. The drain cap has a mounting hole, which is fitted with a plug. Rotating the drain cap covers the first drain hole. When the drain cap is rotated to connect the first drain hole to the second drain hole, the water pressure generated by the water flow in the pipe can be discharged from the pipe through the first and second drain holes. Before disassembling the fire-fighting joint, the pressure in the pipe can be relieved, making it easier to remove the pipe body.

[0004] The applicant found that a number of balls need to be used to limit the drain cap and the first tube body to ensure that the drain cap rotates smoothly and labor-savingly. The number of balls that need to be filled has been determined during the product design. However, during the actual production process of the interface, the filling of the balls is relatively complicated. The assembler cannot intuitively observe the number of balls in the cavity. It is difficult to calculate the exact number of balls filled in the cavity. If the number of balls does not meet the standard, the quality of the finished product may not meet the standard. In addition, when the interface size is changed, the size of the balls also needs to be changed accordingly, and the number of balls also needs to be recalculated, which increases the difficulty in design and production. That is, the method of limiting the drain cap by balls and cavities is not convenient for production and assembly. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a water hose interface, which has the advantages of a relatively simple limiting method and is easy to assemble and produce.

[0006] The above technical purpose of the present invention is achieved through the following technical solutions: a water hose interface, including an interface body and a control ring, the control ring is movably arranged on the interface body, a slide groove is provided on the interface body, the length direction of the slide groove is the same as the movable direction of the control ring, and the control ring is provided with a limiter that slides with the slide groove; or, a slide groove is provided on the control ring, the length direction of the slide groove is the same as the movable direction of the control ring, and the interface body is provided with a limiter that slides with the slide groove.

[0007] Through the above technical solution, the limit member is arranged on the control ring, and the slide groove is opened on the interface body, or the positions of the limit member and the slide groove are swapped; the control ring and the interface body are assembled so that the limit member can extend into the slide groove, and during the movement of the control ring, the limit member slides along the length direction of the slide groove following the control ring; that is, the interface body and the control ring are limited by the cooperation of the limit member and the slide groove, thereby ensuring that the control ring will not be separated from the interface body. The limiting method is simple and convenient for assembly, production and subsequent improved design.

[0008] Preferably, at least one sliding groove is provided, a sliding member is provided on the control ring, and the sliding member is slidably engaged with the outer wall of the interface body.

[0009] Through the above technical solution, the sliding groove limits the movable stroke and movable direction of the limiting member, and one or more sliding members can be set. The control ring contacts the interface body through the sliding member and the limiting member, thereby effectively avoiding wear between the inner wall of the control ring and the interface body during the movement.

[0010] Preferably, at least two of the chutes are arranged at intervals, and the number of the limiting members corresponds to the number of the chutes, and the limiting members can slide in the corresponding chutes respectively.

[0011] Through the above technical solution, the two slide grooves can be symmetrically distributed on the outer wall of the interface body, and the two limit members extend into the corresponding slide grooves respectively, so that the two slide grooves guide the movement direction of the limit members respectively, thereby increasing the stability of the control ring during the movement; in addition, the control ring contacts the interface body through the two limit members, effectively avoiding wear between the inner wall of the control ring and the interface body during the movement.

[0012] Preferably, a drainage hole 1 is provided on the interface body, and a drainage hole 2 that can be connected to the drainage hole 1 is provided on the control ring; a sealing groove is provided on the side of the control ring close to the interface body, and the sealing groove and the drainage hole 2 are spaced apart along the movable direction of the control ring, and the number of the sealing grooves corresponds one-to-one to the number of the drainage hole 1, and a sealing sheet that can seal the drainage hole 1 is provided in the sealing groove.

[0013] Through the above technical solution, under normal conditions, drainage hole 1 is covered and sealed by the sealing sheet, and water can flow normally in the interface body; by driving the control ring to move, the sealing sheet is moved away from drainage hole 1, and drainage hole 1 is connected to drainage hole 2, and the water in the interface body can be discharged through drainage hole 1 and drainage hole 2.

[0014] Preferably, the limiting member includes a fixing pin, the fixing pin is detachably fixedly connected to the control ring, and the inner end of the fixing pin can slide in the sliding groove.

[0015] With the above technical solution, the inner end of the fixing pin extends into the slide groove. When the control ring slides along the length direction of the slide groove, the slide groove can guide the limiter, thereby ensuring that the control ring has a unique movable direction.

[0016] Preferably, the limiting member also includes a reset member and a ball, the inner end of the fixing pin is provided with a positioning groove for the reset member to be installed, the upper half of the ball can extend into the positioning groove, and the ball can slide along the bottom of the slide groove.

[0017] Through the above technical solution, the reset member pushes the ball into the bottom of the slide groove, and the upper part of the ball extends into the positioning groove. During the movement of the control ring, the fixing pin can drive the ball to move together, so that the ball can roll or slide along the bottom of the slide groove. In other words, the limit member contacts the bottom of the limit groove through the ball, which reduces the wear of the limit member and the slide groove while also reducing the friction between the control ring and the interface body, thereby facilitating the movement of the control ring.

[0018] Preferably, the slide groove has an opening contact and a closing contact for the ball to roll into. When the limiting member slides to the opening contact, the drainage hole 1 is connected to the drainage hole 2. When the limiting member slides to the closing contact, the drainage hole 1 is sealed by the sealing sheet.

[0019] When the ball moves with the fixing pin to the open contact, the ball is pushed into the open contact by the reset member, and collides with the open contact to produce a sound, thereby notifying the user that the travel of the control ring has ended. At this time, if you want to push the control ring to make the ball disengage from the closed contact, you need a larger external force; if you apply a larger external force to the control ring, the control ring, the fixing pin, the reset member and the ball slide in the direction of the open contact as a whole, and the ball disengages from the closed contact, when the ball moves with the fixing pin to the open contact, the ball is pushed into the open contact by the reset member, and collides with the open contact to produce a sound, thereby notifying the user that the travel of the control ring has ended, then you need a larger external force to push the control ring to make the ball disengage from the open contact, thereby effectively preventing external debris from causing the control ring to move or firefighters from operating it incorrectly.

[0020] Preferably, a guide groove is provided at the bottom of the slide groove along the length direction of the slide groove, the guide groove connects the opening contact and the closing contact, and the guide groove is for the ball to roll.

[0021] Through the above technical solution, the guide groove guides the moving direction of the ball, and the slide groove guides the fixing pin, further ensuring the moving direction of the control ring, effectively avoiding the lateral displacement of the control ring, and also increasing the sealing performance of the sealing sheet to the drainage hole; in addition, the guide groove also reduces the difficulty of the ball detaching from the open contact and the closed contact.

[0022] Preferably, a bump is provided on the control ring.

[0023] With the above technical solution, the user can drive the control ring to move along the direction of the sliding groove by grasping the protrusion with his hand.

[0024] Preferably, a connector is provided on the interface body.

[0025] Through the above technical solution, the setting of the joint facilitates the connection between the interface body and the water hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure after assembly of Example 1;

[0027] Figure 2 for Figure 1 Schematic diagram of the explosion structure;

[0028] Figure 3 for Figure 1 Schematic diagram of the full cross-section structure;

[0029] Figure 4 This is a schematic diagram of a partial explosion structure of Example 1;

[0030] Figure 5 This is a schematic diagram of the full cross-section structure of the interface body in Example 1;

[0031] Figure 6 Schematic diagram of the structure of the limiting member in Example 1;

[0032] Figure 7 It is a schematic cross-sectional view of a part of the embodiment;

[0033] Figure 8 This is a schematic diagram of the external structure of Example 2;

[0034] Figure 9 for Figure 8 Schematic diagram of the explosion structure;

[0035] Figure 10 for Figure 8 Schematic diagram of the full cross-section structure;

[0036] Figure 11 This is a schematic diagram of the full cross-section structure of the interface body in Example 2;

[0037] Figure 12 This is a schematic diagram of the full cross-section structure of Example 3;

[0038] Figure 13 This is a schematic diagram of the exploded structure of the sliding member in Example 3;

[0039] Figure 14 This is a full cross-sectional diagram of the interface body in Example 3.

[0040] Reference numerals: 100, interface body; 110, slide groove; 111, opening contact; 112, closing contact; 113, guide groove; 120, drainage hole 1;

[0041] 200, control ring; 210, drain hole 2; 220, sealing groove; 221, sealing sheet; 230, bump;

[0042] 300, limit member; 310, fixing pin; 311, positioning groove; 312, mounting groove; 320, reset member; 330, ball bearing;

[0043] 400, sliding member; 410, limiting bolt; 411, placement groove; 420, return spring; 430, steel ball;

[0044] 500. Connector. DETAILED DESCRIPTION

[0045] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the present invention.

[0046] The present invention will be further described in detail below with reference to the accompanying drawings.

[0047] Example 1:

[0048] A hose connector, such as Figures 1 to 7 As shown, it includes an interface body 100 and a control ring 200, the control ring 200 is rotatably set on the interface body 100, the outer wall of the interface body 100 is provided with a sliding groove 110, the length direction of the sliding groove 110 is the same as the rotation direction of the control ring 200, and the control ring 200 is provided with a limit member 300 that slides with the sliding groove 110; or, the control ring 200 is provided with a sliding groove 110, the length direction of the sliding groove 110 is the same as the movable direction of the control ring 200, and the interface body 100 is provided with a limit member 300 that slides with the sliding groove 110, that is, the positions of the limit member 300 and the sliding groove 110 can be swapped.

[0049] Preferably, at least two slide grooves 110 are arranged at intervals, and the slide grooves 110 are symmetrically distributed on the outer wall of the interface body 100. The number of the limiting members 300 corresponds to the number of the slide grooves 110, and the limiting members 300 can slide into the corresponding slide grooves 110 respectively.

[0050] Furthermore, in order to ensure the stability of the rotation of the control ring 200, this embodiment preferably has four slide grooves 110, and the structure of each slide groove 110 is the same, two adjacent slide grooves 110 are arranged in parallel, and the slide grooves 110 are symmetrically arranged in pairs on the outer wall of the interface body 100, and each slide groove 110 corresponds to a limit member 300.

[0051] The limiting member 300 includes a fixing pin 310, a reset member 320, and a ball 330. The fixing pin 310 extends through the control ring 200 from the outside and is snap-fitted or threadedly connected to the control ring 200. The outer end of the fixing pin 310 defines a mounting slot 312 for inserting an installation tool. The inner end of the fixing pin 310 is capable of sliding within the chute 110. The inner end of the fixing pin 310 also defines a positioning slot 311 for inserting the reset member 320. The ball 330 is disposed at the notch of the positioning slot 311. The upper half of the ball 330 can extend into the positioning slot 311, while the lower half of the ball 330 can slide or roll along the bottom of the chute 110. In this embodiment, the reset member 320 is preferably a spring.

[0052] The interface body 100 is provided with a plurality of drainage holes 120, and the control ring 200 is provided with the same number of drainage holes 210 as the drainage holes 120, and the drainage holes 210 can be connected to the drainage holes 120; the control ring 200 is provided with a sealing groove 220 on the side close to the interface body 100, and the sealing groove 220 and the drainage holes 210 are spaced apart along the rotation direction of the control ring 200, and the number of the sealing grooves 220 corresponds to the number of the drainage holes 120 one by one, and a sealing sheet 221 is provided in each sealing groove 220 to seal the drainage holes 120.

[0053] The bottom of the chute 110 has an opening contact 111 and a closing contact 112 for the ball 330 to roll into. The opening contact 111 and the closing contact 112 are spaced apart. When the stopper 300 slides to the opening contact 111, the first drain hole 120 communicates with the second drain hole 210. When the stopper 300 slides to the closing contact 112, the first drain hole 120 is sealed by the sealing sheet 221. Alternatively, the opening contact 111 can be at one end of the chute 110, and the closing contact 112 can be at the other end of the chute 110.

[0054] A guide groove 113 is provided at the bottom of the slide groove 110 along the length direction of the slide groove 110, and the guide groove 113 connects the open contact 111 and the close contact 112, that is, the open contact 111 is located at one end of the guide groove 113, and the close contact 112 is located at the other end of the guide groove 113, and the guide groove 113 is for the ball 330 to roll or slide.

[0055] Preferably, the outer wall of the control ring 200 is provided with a protrusion 230 for the user to hold.

[0056] The interface body 100 is provided with a connector 500, which can be any common quick connector 500 in the prior art. The quick connector 500 is snap-fitted or threadedly connected to the interface body 100. In addition, the interface body 100 can also be directly integrally formed with the connector 500.

[0057] The working principle of a hose interface:

[0058] The sealing sheet 221 is installed in the sealing groove 220, the control ring 200 is sleeved on the outside of the interface body 100, and then the fixing pin 310 is threadedly connected to the control ring 200, so that the inner end of the fixing pin 310 extends into the slide groove 110, and the ball 330 is pushed into the guide groove 113 by the reset member 320. At this time, the control ring 200 is limited by the fixing pin 310, thereby realizing the assembly of the control ring 200 and the interface body 100.

[0059] Then install the connector 500 on the interface body 100 to complete the assembly of the interface.

[0060] This interface is connected to the water hose. The user holds the protrusion 230 and applies external force to the protrusion 230 to push the control ring 200 to rotate along the length direction of the slide groove 110. The fixing pin 310, the reset member 320, the ball 330 and the sealing plate 221 rotate synchronously with the control ring 200. When the ball 330 rolls or slides along the guide groove 113 to the closing contact 112, the ball 330 is pushed into the closing contact 112 by the reset member 320 and collides with the closing contact 112 to make a sound. At this time, the rotation stroke of the control ring 200 ends, and the drain hole 120 is blocked by the sealing plate 221. If you want to push the control ring 200 to make the ball 330 disengage from the closing contact 112, a larger external force is required, and water can flow normally in this interface.

[0061] After the hose is used, the user holds the protrusion 230 and applies a reverse external force to the protrusion 230, so that the ball 330 enters the guide groove 113 from the closing contact 112, and the control ring 200 rotates toward the opening contact 111. The fixing pin 310, the reset member 320, the ball 330 and the sealing sheet 221 rotate synchronously with the control ring 200. When the ball 330 rolls or slides along the guide groove 113 to the opening contact 111, the ball 330 is reset by the reset member. 320 is pushed into the opening contact 111 and collides with the opening contact 111 to make a sound. At this time, the rotation stroke of the control ring 200 ends, and the sealing piece 221 is away from the drainage hole 120, and the drainage hole 210 is connected to the drainage hole 120. If you want to push the control ring 200 to make the ball 330 disengage from the opening contact 111, a larger external force is required to ensure that the residual water in this interface can be discharged from the drainage hole 120 and the drainage hole 210.

[0062] The interface body 100 and the control ring 200 are limited by the cooperation of the limiting member 300 and the slide groove 110, thereby ensuring that the control ring 200 will not be separated from the interface body 100. The limiting method is simple, which is convenient for assembly, production and subsequent improved design; in addition, the fixing pin 310 is in direct contact with the interface body 100 through the ball 330, resulting in less friction between the control ring 200 and the interface body 100, which facilitates the rotation of the control ring 200.

[0063] Example 2:

[0064] The difference between the second embodiment and the first embodiment is that: Figures 8 to 11 As shown, the control ring 200 is slidably arranged on the interface body 100, and the outer wall of the interface body 100 is symmetrically provided with at least two slide grooves 110, and the length direction of the slide groove 110 is parallel to the central axis of the interface body 100; the number of the limit members 300 corresponds one to one to the number of the slide grooves 110, and the inner ends of the two limit members 300 can slide in the corresponding slide grooves 110.

[0065] The interface body 100 is provided with a plurality of drainage holes 120, and the control ring 200 is provided with the same number of drainage holes 210 as the drainage holes 120, and the drainage holes 210 can be connected to the drainage holes 120; the control ring 200 is provided with a sealing groove 220 on the side close to the interface body 100, and the sealing groove 220 and the drainage holes 210 are spaced apart along the sliding direction of the control ring 200, and the number of the sealing grooves 220 corresponds to the number of the drainage holes 120 one by one, and a sealing sheet 221 is provided in each sealing groove 220 to seal the drainage holes 120.

[0066] Example 3:

[0067] The difference between the third embodiment and the second embodiment is that: Figures 12 to 14 As shown, the control ring 200 is slidably arranged on the interface body 100, and a slide groove 110 is provided. A limit member 300 and a sliding member 400 are circumferentially spaced on the control ring 200. The inner end of the limit member 300 is slidably arranged in the slide groove 110, and the slide groove 110 guides the limit member 300. The sliding member 400 includes a limit bolt 410, a return spring 420 and a steel ball 430. The limit bolt 410 passes through the control ring 200 from the outside and is threadedly connected to the control ring 200. The inner end of the limit bolt 410 is provided with a placement groove 411 for placing the return spring 420. The steel ball 430 is arranged at the notch of the placement groove 411, and one end of the return spring 420 is pressed against the bottom of the placement groove 411, the other end of the return spring 420 is pressed against the upper half of the steel ball 430, and the other half of the steel ball 430 is pressed against the outer wall of the interface body 100.

[0068] That is, the sliding groove 110 guides the control ring 200 , the limiting member 300 reduces the friction between the control ring 200 and the interface body 100 , and the sliding member 400 further reduces the friction between the control ring 200 and the interface body 100 .

[0069] To further improve the stability of the control ring 200 during sliding, multiple sliding members 400 may be spaced apart.

[0070] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the scope of protection of the present invention. The scope of protection of the present invention is determined by the appended claims.

Claims

1. A hose connector, characterized in that: It comprises an interface body (100) and a control ring (200), wherein the control ring (200) is movably arranged on the interface body (100). The interface body (100) is provided with a sliding groove (110), the length direction of the sliding groove (110) is the same as the movable direction of the control ring (200), and the control ring (200) is provided with a limiting member (300) that slides and cooperates with the sliding groove (110); Wherein, at least one slide groove (110) is provided, a sliding member (400) is provided on the control ring (200), and the sliding member (400) includes a limiting bolt (410), a return spring (420) and a steel ball (430), and the inner end of the limiting bolt (410) is provided with a placement groove (411) for placing the return spring (420), and the steel ball (430) is arranged at the notch of the placement groove (411), and the return spring (420) presses the steel ball (430) against the outer wall of the interface body (100), and the steel ball (430) slides and cooperates with the outer wall of the interface body (100).

2. The hose connector according to claim 1, characterized in that: The interface body (100) is provided with a drainage hole 1 (120), and the control ring (200) is provided with a drainage hole 2 (210) that can be connected to the drainage hole 1 (120); the control ring (200) is provided with a sealing groove (220) on the side close to the interface body (100), and the sealing groove (220) and the drainage hole 2 (210) are arranged at intervals along the movable direction of the control ring (200), and the number of the sealing grooves (220) corresponds to the number of the drainage holes 1 (120), and a sealing sheet (221) that can seal the drainage hole 1 (120) is provided in the sealing groove (220).

3. The hose connector according to claim 2, characterized in that: The limiting member (300) includes a fixing pin (310), the fixing pin (310) is detachably fixedly connected to the control ring (200), and the inner end of the fixing pin (310) can slide in the sliding groove (110).

4. The hose connector according to claim 3, characterized in that: The limiting member (300) further includes a reset member (320) and a ball (330). The inner end of the fixing pin (310) is provided with a positioning groove (311) for the reset member (320) to be installed. The upper half of the ball (330) can extend into the positioning groove (311), and the ball (330) can slide along the bottom of the sliding groove (110).

5. The hose connector according to claim 4, characterized in that: The slide groove (110) has an opening contact (111) and a closing contact (112) for the ball (330) to roll into. When the limiting member (300) slides to the opening contact (111), the drainage hole 1 (120) is connected to the drainage hole 2 (210). When the limiting member (300) slides to the closing contact (112), the drainage hole 1 (120) is sealed by the sealing sheet (221).

6. The hose connector according to claim 5, characterized in that: A guide groove (113) is provided at the bottom of the slide groove (110) along the length direction of the slide groove (110), and the guide groove (113) connects the opening contact (111) and the closing contact (112), and the guide groove (113) allows the ball (330) to roll.

7. The hose connector according to any one of claims 1 to 6, characterized in that: A convex block (230) is provided on the control ring (200).

8. The hose connector according to any one of claims 1 to 6, characterized in that: A connector (500) is provided on the interface body (100).

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