Quick connector for valve hose

Abstract

The utility model discloses a quick connector for a valve hose, which relates to the technical field of quick connectors, and comprises a first connector and a second connector, the first connector and the second connector are mutually butted and combined into an integral quick connector, the front end of the first connector is fixedly connected with two first fixing rings, and the front end of the second connector is fixedly connected with two second fixing rings. Two first fixing rings are fixedly connected to the outer side of the first connector, two second fixing rings are fixedly connected to the outer side of the second connector, the first fixing rings and the second fixing rings are arranged in a staggered mode, and the two first fixing rings and the two second fixing rings are combined to form an integral annular structure. In this way, after the first connector and the second connector are mutually butted and fixed, the first connector and the second connector do not rotate relative to each other, namely the rotating or resetting phenomenon is avoided, so that the stability of the quick connector for the valve hose can be improved, and the sealing effect of the quick connector for the valve hose in use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of quick connectors, in particular to a quick connector for a valve hose. Background Art

[0002] A quick connector is a connector that can connect or disconnect pipes without tools. Quick connectors can be divided into: quick connectors for air, quick connectors for oxygen fuel gas, quick connectors for gas and liquid, quick connectors for oil pressure, quick connectors for inert gas, quick connectors for cooling water temperature oil and quick connectors for semiconductors; valves are pipe accessories used to open and close pipes, control flow direction, and adjust and control the parameters (temperature, pressure and flow) of the conveying medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc. Valves are control components in fluid conveying systems, with functions such as shut-off, regulation, diversion, prevention of backflow, pressure stabilization, diversion or overflow pressure relief. Valves used in fluid control systems have a wide variety of varieties and specifications, from the simplest shut-off valves to various valves used in extremely complex automatic control systems. Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil products, liquid metals and radioactive media. Valves are divided into cast iron valves, cast steel valves, stainless steel valves, chrome-molybdenum steel valves, chrome-molybdenum-vanadium steel valves, duplex steel valves, plastic valves and non-standard custom valves according to the material. When the valve is connected to the hose, a quick connector is required.

[0003] At present, quick connectors mainly connect the single connector on the valve with the single connector on the hose. The two single connectors rotate relative to each other through threads and are threadedly connected to each other. During use, the single connector may rotate or reset due to external force, thereby causing the quick connector to loosen, resulting in air or liquid leakage, which leads to unstable use of the quick connector for the valve hose. Utility Model Content

[0004] The utility model aims to provide a quick connector for a valve hose, so as to solve the problem of unstable connection of the quick connector for the valve hose proposed in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quick connector for a valve hose, comprising a first connector and a second connector, the first connector and the second connector are butt-jointed to form an integral quick connector, the front end of the first connector is fixedly connected to two first fixing rings, the outer side of the second connector is fixedly connected to two second fixing rings, the first fixing ring and the second fixing ring are staggered with each other, and the two first fixing rings and the two second fixing rings are combined with each other to form an integral annular structure, the outer side sliding sleeve of the second connector is provided with a threaded sleeve, the outer side of the first connector is provided with an external thread, and the threaded sleeve is threadedly sleeved on the outer side of the first connector through the external thread.

[0006] Preferably, the two first fixing rings and the two second fixing rings are combined into an integral fixing sleeve, an annular groove is provided on the outer side of the fixing sleeve, a limiting ring is adapted in the cavity of the annular groove, and the limiting ring includes two semicircular rings which are arranged in mirror symmetry with each other.

[0007] Preferably, a sealing groove is provided at the front end of the first joint, a sealing ring plug-connected to the sealing groove is fixedly connected to the front end of the second joint, and a sealing ring is provided between the sealing ring and the inner wall of the sealing groove.

[0008] Preferably, the threaded sleeve includes an outer ring and an inner resistance ring, the outer ring is fixedly sleeved on the outside of the inner resistance ring, the inner resistance ring is slidably sleeved on the outside of the second joint, and the inner resistance ring is in contact with one side of the second fixed ring, the outer side of the outer ring is a hexagonal structure, the outer diameter of the first fixed ring is smaller than the inner diameter of the outer ring, and the outer diameter of the first fixed ring is larger than the inner diameter of the resistance ring.

[0009] Preferably, one end of the first joint away from the sealing ring is fixedly connected to a tube body, and one end of the second joint away from the sealing ring is fixedly connected to a valve body, and the valve body is a valve.

[0010] Preferably, the four ends of the two semicircular rings are respectively fixedly connected with two plug rods and have two slots, and the plug rods are plug-connected with the slots.

[0011] Preferably, the sealing ring is made of rubber.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The present application sets a first fixing ring and a second fixing ring, so that after the first joint and the second joint are connected and fixed to each other, no relative rotation, that is, rotation or resetting, will occur between the first joint and the second joint, thereby improving the stability of the quick connector for the valve hose, thereby improving the sealing effect of the quick connector for the valve hose.

[0014] 2. The present application sets a limit ring, which can limit the first fixing ring and the second fixing ring, so that the first joint and the second joint cannot move relative to each other. When the hose or the valve is subjected to tension, the limit ring is used to share the force of part of the thread teeth of the threaded sleeve, thereby reducing the wear of the thread teeth on the threaded sleeve due to the force, and thus effectively improving the service life of the quick connector for the valve hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the whole quick connector for a valve hose of the utility model;

[0016] Figure 2 It is a three-dimensional schematic diagram of the cooperation of a first connector and a second connector of a quick connector for a valve hose of the utility model;

[0017] Figure 3 It is a cross-sectional perspective schematic diagram of an overall quick connector for a valve hose of the utility model;

[0018] Figure 4 This is a three-dimensional schematic diagram of a first connector of a quick connector for a valve hose of the utility model;

[0019] Figure 5 This is a three-dimensional schematic diagram of a second connector of a quick connector for a valve hose of the utility model;

[0020] Figure 6 The utility model is a three-dimensional schematic diagram of a limit ring of a quick connector for a valve hose.

[0021] Numbers in the figure: 1, tube body; 2, valve body; 3, first joint; 4, second joint; 5, first fixing ring; 6, second fixing ring; 7, threaded sleeve; 701, outer sleeve; 702, inner resistance ring; 8, limit ring; 801, semicircular ring; 802, plug rod; 803, slot; 9, sealing groove; 10, sealing ring; 11, sealing ring; 12, annular groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example: Figure 1 - Figure 6As shown, the utility model provides a technical solution for a quick connector for a valve hose, including a first connector 3 and a second connector 4, the first connector 3 and the second connector 4 are butt-jointed to form an integral quick connector, the front end of the first connector 3 is fixedly connected to two first fixing rings 5, the outer side of the second connector 4 is fixedly connected to two second fixing rings 6, the first fixing ring 5 and the second fixing ring 6 are staggered with each other, and the two first fixing rings 5 ​​and the two second fixing rings 6 are combined with each other into an integral annular structure, the outer side of the second connector 4 is slidably sleeved with a threaded sleeve 7, the outer side of the first connector 3 is provided with an external thread, and the threaded sleeve 7 is threadedly sleeved on the outer side of the first connector 3 through the external thread;

[0024] The first joint 3 and the second joint 4 are butted together. At this time, the first fixing ring 5 on the first joint 3 is inserted between the two second fixing rings 6 on the second joint 4, so that the two first fixing rings 5 ​​and the second fixing rings 6 are combined into an integral annular structure. Then, the threaded sleeve 7 is slid to the external thread of the first joint 3, and the external thread of the first joint 3 is threadedly connected with the threaded sleeve 7, thereby completing the butt fixing of the first joint 3 and the second joint 4. Otherwise, the first joint 3 and the second joint 4 are disassembled.

[0025] The first connector 3 and the second connector 4 are assembled into a quick connector.

[0026] like Figure 3 - Figure 6 As shown, two first fixing rings 5 ​​and two second fixing rings 6 are combined into an integral fixing sleeve, an annular groove 12 is provided on the outer side of the fixing sleeve, a limiting ring 8 is adapted in the cavity of the annular groove 12, and the limiting ring 8 includes two semicircular rings 801 which are arranged in mirror symmetry with each other;

[0027] When the first fixing ring 5 is inserted between the two second fixing rings 6 on the second joint 4, the overall annular structure composed of the first fixing ring 5 and the second fixing ring 6 will be combined into an annular annular groove 12, and the two semicircular rings 801 are respectively inserted into the two sides of the annular groove 12, so that the entire annular groove 12 is filled with the limiting ring 8, and then the threaded sleeve 7 is used to be threadedly connected with the first joint 3, and the limiting ring 8 is located inside the threaded sleeve 7;

[0028] The limiting ring 8 can be used to limit the first fixing ring 5 from being separated from the gap between the two second fixing rings 6.

[0029] Therefore, when the two ends of the quick connector are pulled relative to each other, the force between the first connector 3 and the second connector 4 is shared through the limiting ring 8 and the external thread.

[0030] like Figure 2 and Figure 3As shown, a sealing groove 9 is provided at the front end of the first joint 3, a sealing ring 10 plugged into the sealing groove 9 is fixedly connected to the front end of the second joint 4, and a sealing ring 11 is provided between the sealing ring 10 and the inner wall of the sealing groove 9;

[0031] First, place the sealing ring 11 in the cavity of the sealing groove 9, and then connect the first joint 3 and the second joint 4. At this time, the sealing ring 10 is inserted into the cavity of the sealing groove 9 and squeezes the sealing ring 11 in the cavity of the sealing groove 9;

[0032] The sealing ring 11 is used to increase the sealing performance between the first joint 3 and the second joint 4 .

[0033] like Figure 5 As shown, the threaded sleeve 7 includes an outer ring 701 and an inner resistance ring 702. The outer ring 701 is fixedly sleeved on the outer side of the inner resistance ring 702. The inner resistance ring 702 is slidably sleeved on the outer side of the second joint 4, and the inner resistance ring 702 is in contact with one side of the second fixing ring 6. The outer side of the outer ring 701 is a hexagonal structure. The outer diameter of the first fixing ring 5 is smaller than the inner diameter of the outer ring 701, and the outer diameter of the first fixing ring 5 is larger than the inner diameter of the inner resistance ring 702.

[0034] like Figure 1 As shown, one end of the first joint 3 away from the sealing ring 11 is fixedly connected to the pipe body 1, and one end of the second joint 4 away from the sealing ring 11 is fixedly connected to the valve body 2, which is a valve.

[0035] like Figure 6 As shown, the four ends of the two semicircular rings 801 are respectively fixedly connected with two plug rods 802 and have two slots 803, and the plug rods 802 are plug-connected with the slots 803;

[0036] The insertion rod 802 and the slot 803 are plugged in and connected, so that the stability of the assembly of the two semicircular rings 801 can be improved.

[0037] like Figure 2 and Figure 3 As shown, the sealing ring 11 is made of rubber.

[0038] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A quick connector for a valve hose, comprising a first connector (3) and a second connector (4), characterized in that: Two first fixing rings (5) are fixedly connected to the front end of the first joint (3), and two second fixing rings (6) are fixedly connected to the outer side of the second joint (4); the first fixing ring (5) and the second fixing ring (6) are arranged staggered with each other; a threaded sleeve (7) is provided on the outer side of the second joint (4); an external thread is provided on the outer side of the first joint (3); and the threaded sleeve (7) is threadedly sleeved on the outer side of the first joint (3) via the external thread.

2. A quick connector for a valve hose according to claim 1, characterized in that: The two first fixing rings (5) and the two second fixing rings (6) are combined into an integral fixing sleeve, the outer side of the fixing sleeve is provided with an annular groove (12), a limiting ring (8) is adapted to fit in the cavity of the annular groove (12), and the limiting ring (8) comprises two semicircular rings (801) arranged in mirror symmetry with each other.

3. A quick connector for a valve hose according to claim 1, characterized in that: The front end of the first joint (3) is provided with a sealing groove (9), the front end of the second joint (4) is fixedly connected with a sealing ring (10) plug-connected to the sealing groove (9), and a sealing ring (11) is provided between the sealing ring (10) and the inner wall of the sealing groove (9).

4. A quick connector for a valve hose according to claim 1, characterized in that: The threaded sleeve (7) comprises an outer ring (701) and an inner resistance ring (702); the outer ring (701) is fixedly sleeved on the outside of the inner resistance ring (702); the inner resistance ring (702) is slidably sleeved on the outside of the second joint (4); and the inner resistance ring (702) is in contact with one side of the second fixed ring (6).

5. The quick connector for a valve hose according to claim 1, characterized in that: One end of the first joint (3) facing away from the sealing ring (11) is fixedly connected to the tube body (1), and one end of the second joint (4) facing away from the sealing ring (11) is fixedly connected to the valve body (2).

6. A quick connector for a valve hose according to claim 2, characterized in that: The four ends of the two semicircular rings (801) are respectively fixedly connected with two insertion rods (802) and are provided with two slots (803), and the insertion rods (802) are plug-connected with the slots (803).

7. A quick connector for a valve hose according to claim 3, characterized in that: The sealing ring (11) is made of rubber.

Images