Water pipe screw joint assembly structure

Abstract

The utility model discloses a water pipe screw joint assembling structure which comprises a water pipe connector, a movable nut and a fixing piece. The movable nut is movably arranged on the water pipe connector in a sleeving mode in the axial direction, and an annular gap is formed between the movable nut and the outer side wall of the water pipe connector. The fixing piece is annular, slides in from the annular gap in the axial direction and is installed on the water pipe connector, the fixing piece extends inwards to form a clamping part capable of being elastically deformed, and a limiting part is formed on the water pipe connector so that when the fixing piece slides in from the annular gap, the clamping part can elastically expand outwards and then slide over the limiting part. The limiting part protrudes out of the sliding path of the fixing part and is used for limiting the fixing part from sliding out of the annular gap, and the fixing part protrudes out of the sliding path of the movable nut, so that when the movable nut slides in the direction away from the water pipe connector, the fixing part abuts against the inner side wall of the movable nut; and the movable nut is prevented from slipping out of the water pipe connector. Consumable materials can be saved, and installation and connection in a narrow space are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of water pipe connection, in particular to an assembly structure of a water pipe screw joint. Background Art

[0002] The water pipe screw joint can be conveniently fixed or disassembled with the docking water pipe, so it is widely used in daily use. The existing water pipe screw joint structure generally includes a water pipe connector and a movable nut. The movable nut is generally movably connected to the water pipe connector, so that when installing with the docking pipe, the movable nut can be conveniently screwed and fixed to the docking pipe, which can prevent the movable nut from falling off. Whether in the disassembled state or the installed state, the movable nut is connected to the water pipe connector, which is easy to use; in the prior art, the movable nut is generally limited by placing a C-shaped retaining ring on the water pipe connector, but the problem is that during installation, the movable nut needs to be moved back to make way for the C-shaped ring to be installed, so that the water pipe connector needs to be processed longer, which not only increases the cost but also is inconvenient to use in a small space. Utility Model Content

[0003] The utility model aims to provide a water pipe screw joint assembly structure, and solves the technical problem that, during installation, the movable nut does not need to be moved backward, and the fixing part can be conveniently installed on the water pipe connector.

[0004] To achieve the above-mentioned purpose, the solution of the present invention is: a water pipe screw joint assembly structure, comprising a water pipe connector, a movable nut and a fixing member;

[0005] The movable nut is axially movably sleeved on the water pipe connector, forming an annular gap between the movable nut and the outer wall of the water pipe connector;

[0006] The fixing piece is annular, slides into the annular gap axially and is installed on the water pipe connector. The fixing piece extends inward to form a clamping portion that can be elastically deformed. A limiting portion is formed on the water pipe connector so that when the fixing piece slides into the annular gap, the clamping portion can elastically expand outward and then slide over the limiting portion, and then elastically shrink inward, so that the limiting portion protrudes on the sliding path of the fixing piece, which is used to limit the fixing piece from sliding out of the annular gap. The fixing piece protrudes on the sliding path of the movable nut, so that when the movable nut slides in the direction away from the water pipe connector, the fixing piece abuts against the inner wall of the movable nut to limit the movable nut from slipping out of the water pipe connector.

[0007] Furthermore, it also includes a first water pipe and a second water pipe, a water pipe connector is formed at one end of the first water pipe, the water pipe connector is used to be inserted into the second water pipe and sealed with the inner wall of the second water pipe, an external thread is formed on the outer wall of the second water pipe, and an internal thread is formed on the inner wall of the movable nut. After the water pipe connector is inserted into the second water pipe, the second water pipe is inserted into the annular gap between the water pipe connector and the movable nut, and is threadedly connected to the movable nut, so that the second water pipe is connected to the first water pipe.

[0008] Furthermore, after the second water pipe is screwed and fixed to the movable nut, its end portion is tightly pressed against the outer side wall of the fixing member.

[0009] Furthermore, the clamping portion is formed at an end of the fixing member away from the water pipe connector and can be elastically deformed in the radial direction.

[0010] Furthermore, the clamping portion includes a plurality of claws, which are arranged in an annular manner along the circumference of the fixing member, and the claws are gradually inclined and retracted radially inward.

[0011] Furthermore, an annular groove is formed on the water pipe connecting head, and the annular groove forms a first side wall and a second side wall along the axial direction respectively. The first side wall is inclined, and the second side wall is the limiting portion. The end of the fixing piece away from the clamping portion is the insertion end, so that when the fixing piece is installed on the water pipe connecting head, the fixing piece is embedded in the annular groove, the insertion end abuts against the first side wall, and the second side wall abuts against the clamping portion.

[0012] Furthermore, an outwardly protruding outer surface of the movable nut forms a toggle portion, which is used for a hand to toggle to drive the movable nut to rotate.

[0013] The cam is pressed against the outer wall of the water pipe connector and is then fixed to the water pipe connector, whereby the cam is pressed against the outer wall of the water pipe connector and is then fixed to the water pipe connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the assembly structure of the utility model connected with the second water pipe.

[0015] Figure 2 yes Figure 1 Schematic diagram of the local cross-sectional structure.

[0016] Figure 3 This is a schematic diagram of the three-dimensional decomposition structure of the utility model Figure 1 .

[0017] Figure 4 This is a schematic diagram of the three-dimensional decomposition structure of the utility model Figure 2 .

[0018] Figure 5 It is a left side view of the fixing member of the present utility model.

[0019] Figure 6 It is a three-dimensional structural diagram of the fixing piece of the present utility model.

[0020] Figure 7 It is a schematic diagram of the three-dimensional structure of the utility model applied to a two-way piece.

[0021] Figure 8 It is a three-dimensional structural schematic diagram of the utility model applied to a tee.

[0022] Explanation of the numbers: 1-water pipe connector, 2-movable nut, 3-fixing part, 4-limiting part, 5-annular groove, 6-sliding part, 7-annular sealing ring, 21-annular flange, 22-anti-slip groove, 31-clamping part, 32-claw part, 33-insertion end, 34-arc surface, 51-first side wall, 52-second side wall, 100-first water pipe, 200-second water pipe, 300-third water pipe, 400-fourth water pipe. DETAILED DESCRIPTION

[0023] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] In the claims, specification and the above-mentioned drawings of the present invention, unless otherwise expressly defined, directional words, such as the use of terms such as "center", "transverse", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships 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 direction or be constructed and operated in a specific direction, so they cannot be understood as limiting the specific scope of protection of the present invention.

[0025] like Figures 1 to 8As shown, the utility model provides a water pipe screw joint assembly structure, including a water pipe connector 1, a movable nut 2 and a fixing piece 3; the movable nut 2 is axially movably sleeved on the water pipe connector 1, and an annular gap is formed between the movable nut 2 and the outer wall of the water pipe connector 1; the fixing piece 3 is annular, specifically a circular ring that matches the water pipe, and slides into the annular gap along the axial direction and is installed on the water pipe connector 1, and the fixing piece 3 extends inward to form a clamping portion 31 that can be elastically deformed. The clamping portion 31 can be formed by the inner wall of the fixing piece 3 extending radially inward, or by the inner wall of the fixing piece 3 extending radially inwardly. The clamping portion 31 can also be formed by the fixing piece 3 being away from the water pipe connector 1 at one end along the It is formed by radially inwardly extending and tilting, and a limiting portion 4 is formed on the water pipe connector 1. The inner diameter of the fixing part 3 matches the outer diameter of the limiting portion 4, so that when the fixing part 3 slides in from the annular gap, the fixing part 3 slides over the outer wall of the limiting portion 4, and the clamping portion 31 can elastically expand outward and then slide over the limiting portion 4, and then elastically shrink inward, so that the limiting portion 4 protrudes on the sliding path of the fixing part 3. When the fixing part 3 slides outward, the limiting portion 4 can be tightly pressed against the clamping portion 31 to limit the fixing part 3 from sliding out of the annular gap. The fixing part 3 protrudes on the sliding path of the movable nut 2, so that when the movable nut 2 slides in the direction away from the water pipe connector 1, the fixing part 3 abuts against the inner wall of the movable nut 2, focusing on the combination Figure 2 and Figure 3 As shown, the movable nut 2 is an axially through-annular structure. The movable nut 2 extends inward toward one end of the water pipe connector 1 to form an annular flange 21. The annular flange 21 is used to abut against the fixing part 3. When the fixing part 3 slides into the annular gap and is installed on the water pipe connector 1, when the movable nut 2 slides in the direction away from the water pipe connector 1, the fixing part 3 is tightly abutted against the annular flange 21 to limit the movable nut 2 from slipping out of the water pipe connector 1, so that the movable nut 2 is connected to the water pipe connector 1 and will not fall off, which is convenient for use during assembly.

[0026] Focus on combination Figure 1As shown, it also includes a first water pipe 100 and a second water pipe 200, a water pipe connector 1 is formed at one end of the first water pipe 100, the first water pipe 100 passes through the water pipe connector 1, the water pipe connector 1 is used to be inserted into the second water pipe 200, and is sealed with the inner wall of the second water pipe 200, so that the first water pipe 100 and the second water pipe 200 are connected, and specifically also includes an annular sealing ring 7, an annular sealing groove is provided on the water pipe connector 1, the annular sealing ring 7 is embedded in the annular sealing groove, and is pressed against the inner wall of the second water pipe 200, so that the water pipe connector 1 and the second water pipe 200 are sealed and connected; an external thread is formed on the outer wall of the second water pipe 200, and an internal thread is formed on the inner wall of the movable nut 2. After the water pipe connector 1 is inserted into the second water pipe 200, the second water pipe 200 is inserted into the water pipe connector 1 and the movable nut The annular gap between the movable nuts 2 is threadedly connected with the movable nut 2 to connect the first water pipe 100 and the second water pipe 200; when the second water pipe 200 is screwed and fixed to the movable nut 2, the end of the second water pipe 200 is pressed against the outer wall of the fixing part 3, so that the fixing part 3 is located between the axial relative axial movement of the movable nut 2 and the second water pipe 200, and at the same time, the axial limitation of the movable nut 2 and the second water pipe 200 is realized. Now the movable nut 2 and the second water pipe 200 continue to move relative to each other, and the structure is more stable; further, the outer surface of the movable nut 2 is outwardly protruding to form a toggle part 6, which is for the hand to toggle to drive the movable nut 2 to rotate; in addition, a number of anti-slip grooves 22 are formed on the outer wall of the movable nut 2, which effectively prevents slipping when the hand rotates the movable nut 2, and is easy to use.

[0027] Focus on combination Figure 4As shown, an annular groove 5 is formed on the water pipe connector 1, and the annular groove 5 forms a first side wall 51 and a second side wall 52 along the axial direction. The first side wall 51 is inclined, and the second side wall 52 is the limiting portion 4. The end of the fixing member 3 away from the clamping portion 31 is the insertion end 33, so that when the fixing member 3 is installed on the water pipe connector 1, the fixing member 3 is embedded in the annular groove 5, the insertion end 33 abuts against the first side wall 51, and the second side wall 52 abuts against the clamping portion 31; when in use, the movable nut 2 is pulled outward to push the fixing member 3 to slide outward, so that the clamping portion 31 and the second side wall 52 are pressed tightly, the more it is pulled, the tighter it is, and the fixing member 3 will not slide out of the annular groove 5, the structure is stable and reliable, and can effectively prevent the movable nut 2 from slipping, and the movable nut 2 and the water pipe The connection of the connector 1 is more stable; the first side wall 51 is set at an angle, which can facilitate the installation of the fixing part 3 in the annular groove 5. The axial length of the annular groove 5 is greater than the length of the fixing part 3. The fixing part 3 has a certain axial activity space in the annular groove 5. When the second water pipe 200 is axially pressed against the fixing part 3, there will be an axial thrust on the fixing part 3, so that the fixing part 3 is pressed against the first side wall 51. Since the first side wall 51 is a slope, it can be pressed against different positions of the slope of the first side wall 5 according to the different inner diameters of the fixing part 3. At the same time, when the second water pipe 200 pushes against the fixing part 3, it has a buffering effect, avoiding the technical problem of excessive pushing force on the fixing part 3 caused by excessive force when rotating the second water pipe 200, and is more flexible to use.

[0028] Preferably, the clamping portion 31 is formed at the end of the fixing member 3 away from the water pipe connector 1 and can be elastically deformed in the radial direction; Figure 5-6 As shown, the clamping portion 31 includes a plurality of claws 32, which are arranged in an annular manner along the circumference of the fixing member 3. The claws 32 are gradually tilted and retracted radially inward, and an arc surface 34 is formed on the inner wall of the claws 32. The inner contour formed by the arc surfaces 34 of the plurality of claws 32 is consistent with the outer contour of the annular groove 5, so that the claws 32 fit on the inner wall of the annular groove 5, and the structure is more stable.

[0029] Focus on combination Figure 7-8 As shown, the utility model can be applied not only to ordinary water pipes, but also to two-way connectors or three-way connectors. Figure 7 In the figure, a third water pipe 300 is also included. Water pipe connectors 1 are formed at both ends of the first water pipe 100. Each water pipe connector 1 is movably connected to a movable nut 2. Each movable nut 2 is connected to the first water pipe 100 via a fixing member 3. During installation, the third water pipe 300 is similar to the second water pipe 200. The water pipe connector 1 is inserted into the third water pipe 300 and is sealed with the inner wall of the third water pipe 300. The third water pipe 300 is screwed and fixed with the movable nut 2, so that the third water pipe 300 is connected to the first water pipe 100. Figure 8As shown, a fourth water pipe 400 is also included, and the first water pipe 100 forms three interconnected water pipe connectors 1. Figure 7 On this basis, the fourth water pipe 400 is screwed and fixed on the water pipe connector 1 of the first water pipe 100; of course, in other embodiments, there may be other applications, which are not specifically limited, and those skilled in the art can design according to specific circumstances.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the design of this case. Any equivalent changes made based on the key design of this case shall fall within the scope of protection of this case.

Claims

1. A water pipe screw joint assembly structure, characterized by: It comprises a water pipe connector (1), a movable nut (2) and a fixing piece (3); The movable nut (2) is movably sleeved on the water pipe connector (1) along the axial direction, and an annular gap is formed between the movable nut (2) and the outer wall of the water pipe connector (1); The fixing member (3) is annular and slides into the annular gap along the axial direction and is installed on the water pipe connector (1). The fixing member (3) extends inward to form a clamping portion (31) that can be elastically deformed. A limiting portion (4) is formed on the water pipe connector (1). When the fixing member (3) slides into the annular gap, the clamping portion (31) can elastically expand outward and then slide over the limiting portion (4), and then elastically shrink inward, so that the limiting portion (4) protrudes on the sliding path of the fixing member (3) to limit the fixing member (3) from sliding out of the annular gap. The fixing member (3) protrudes on the sliding path of the movable nut (2), so that when the movable nut (2) slides in a direction away from the water pipe connector (1), the fixing member (3) abuts against the inner wall of the movable nut (2) to limit the movable nut (2) from sliding out of the water pipe connector (1).

2. The water pipe screw joint assembly structure according to claim 1, characterized in that: The invention also includes a first water pipe (100) and a second water pipe (200), wherein a water pipe connector (1) is formed at one end of the first water pipe (100), and the water pipe connector (1) is used to be inserted into the second water pipe (200) and to be sealed with the inner wall of the second water pipe (200). An external thread is formed on the outer wall of the second water pipe (200), and an internal thread is formed on the inner wall of the movable nut (2). After the water pipe connector (1) is inserted into the second water pipe (200), the second water pipe (200) is inserted into the annular gap between the water pipe connector (1) and the movable nut (2), and is threadedly connected to the movable nut (2), so that the second water pipe (200) is connected to the first water pipe (100).

3. The water pipe screw joint assembly structure according to claim 2, characterized in that: After the second water pipe (200) is screwed and fixed to the movable nut (2), its end is pressed against the outer wall of the fixing member (3).

4. The water pipe screw joint assembly structure according to claim 1, characterized in that: The clamping portion (31) is formed at one end of the fixing member (3) away from the water pipe connector (1) and is capable of elastic deformation in the radial direction.

5. The water pipe screw joint assembly structure according to claim 4, characterized in that: The clamping portion (31) comprises a plurality of claw portions (32), the plurality of claw portions (32) being arranged at intervals along the circumference of the fixing member (3), and the claw portions (32) being gradually inclined and retracted radially inward.

6. The water pipe screw joint assembly structure according to claim 4, characterized in that: An annular groove (5) is formed on the water pipe connector (1), and the annular groove (5) forms a first side wall (51) and a second side wall (52) along the axial direction, the first side wall (51) is inclined, and the second side wall (52) is the limiting portion (4). The end of the fixing member (3) away from the clamping portion (31) is the insertion end (33), so that when the fixing member (3) is installed on the water pipe connector (1), the fixing member (3) is embedded in the annular groove (5), the insertion end (33) abuts against the first side wall (51), and the second side wall (52) abuts against the clamping portion (31).

7. The water pipe screw joint assembly structure according to claim 1, characterized in that: The outer surface of the movable nut (2) is protruded outward to form a toggle portion (6), and the toggle portion (6) is for manual toggle to drive the movable nut (2) to rotate.

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