阅读说明：本技术 连接头及回水装置 (Connector and water return device ) 是由 王宽时 于 2020-06-02 设计创作，主要内容包括：本发明提供了一种连接头,包括管本体以及可转动地活动连接在管本体上的螺帽,螺帽可拆卸地活动连接在管本体上,管本体包括螺纹连接段以及螺帽连接段,螺纹连接段和螺帽连接段之间设有连接板,螺帽连接段远离螺纹连接段的一端管外壁上设有一周凸出的第一环状凸台,在螺帽一端内孔中设有一周凸出的第二环状凸台；第二环状凸台上设有将第二环状凸台分割为第一弧形段、第二弧形段的两个缺口；所述第一弧形段的弧长大于第二弧形段的弧长。本发明还提供了一种回水装置,包括所述的连接头。与现有技术相比,便于螺帽与管本体的装配,而在螺帽出现脱丝或断裂问题时,能够仅对该螺帽进行更换,而无需将连接头整体进行更换,节省了耗材。(The invention provides a connector, which comprises a pipe body and a nut, wherein the nut is rotatably and movably connected to the pipe body, the nut is detachably and movably connected to the pipe body, the pipe body comprises a threaded connection section and a nut connection section, a connecting plate is arranged between the threaded connection section and the nut connection section, a first annular boss which is protruded for one circle is arranged on the outer wall of one end of the nut connection section, which is far away from the threaded connection section, of the pipe, and a second annular boss which is protruded for one circle is arranged in an inner hole at one end of the nut; the second annular boss is provided with two notches for dividing the second annular boss into a first arc-shaped section and a second arc-shaped section; the arc length of the first arc-shaped section is larger than that of the second arc-shaped section. The invention also provides a water return device which comprises the connector. Compared with the prior art, the nut and the assembly of pipe body of being convenient for, and when the nut appears taking off the silk or the fracture problem, can only change this nut, and need not to change the connector is whole, has saved the consumptive material.)

1. The utility model provides a connector, includes hollow pipy pipe body (1) and rotationally swing joint nut (2) on pipe body (1), its characterized in that: the pipe is characterized in that the nut (2) is detachably and movably connected to the pipe body (1), the pipe body (1) comprises a threaded connection section (3) and a nut connection section (5), a connection plate (4) is arranged between the threaded connection section (3) and the nut connection section (5) to prevent the nut (2) from being separated from the pipe body (1) and fix the pipe body (1), a first annular boss (8) protruding for a circle is arranged on the outer wall of the pipe at one end, far away from the threaded connection section (3), of the nut connection section (5), a second annular boss (6) protruding for a circle is arranged in the inner hole at one end of the nut (2), and the inner diameter of the second annular boss (6) is larger than the outer diameter of the nut connection section (5) to enable an avoiding gap to be formed between the second annular boss (6) and the outer annular wall of the nut connection section (5); the outer diameter of the first annular boss (8) is smaller than the aperture of the inner hole of the screw cap (2) and larger than the inner diameter of the second annular boss (6); the second annular boss (6) is provided with two gaps (7) for dividing the second annular boss (6) into a first arc-shaped section (11) and a second arc-shaped section (12), the gaps (7) are communicated with an inner hole of the second annular boss (6), and the two gaps (7) are symmetrically arranged on the second annular boss (6); the arc length of the first arc-shaped section (11) is greater than that of the second arc-shaped section (12); when the boss part at any end of the first annular boss (8) is obliquely inserted into the inner hole of the nut (2) from the notch (7) to the first arc-shaped section (11), the boss part at the other end opposite to the boss part of the first annular boss (8) just avoids the second arc-shaped section (12) to enter the inner hole of the nut (2), so that the first annular boss (8) is abutted against the first arc-shaped section (11) and the second arc-shaped section (12), and the nut (2) is relatively limited to rotate on the nut connecting section (5).

2. The connecting head according to claim 1, wherein: the distance from one end surface, opposite to the first annular boss (8) and the connecting plate (4), of the nut connecting section (5) to the connecting plate (4) is larger than the thickness of the first arc-shaped section (11) and the second arc-shaped section (12).

3. The connecting head according to claim 2, wherein: the one end that first cyclic annular boss (6) are relative with connecting plate (4) is equipped with the cyclic annular boss of third (9), the external diameter of the cyclic annular boss of third (9) is less than the hole aperture of the cyclic annular boss of second (6) to the cyclic annular boss of third (9) is located the hole of the cyclic annular boss of second (6) after nut (2) and tube coupling.

4. The connecting head according to claim 1, wherein: an inner thread (13) is arranged in an inner hole at one end of the pipe body (1) positioned at the threaded connection section (3).

5. The connecting head according to claim 4, wherein: the pipe is characterized in that a fourth raised annular boss (10) is arranged on the inner hole wall of the pipe body (1), and one end of the internal thread (13) extends to the fourth annular boss (10).

6. The connecting head according to claim 4, wherein: the inner hole aperture of the pipe body (1) positioned on the nut connecting section (5) is smaller than that of the threaded connecting section (3) so as to form a body step surface (14).

7. A joining head according to any one of claims 1-6, characterised in that: the arc length of one end arc edge of the inner hole of the nut (2) far away from the first arc-shaped section (11) is less than or equal to one third of the perimeter of the second annular boss (6) and more than or equal to one fourth of the perimeter of the second annular boss (6), and the arc length of one end arc edge of the inner hole of the nut (2) far away from the second arc-shaped section (12) is less than or equal to one half of the arc length of one end arc edge of the inner hole of the nut (2) far away from the first arc-shaped section (11).

8. A water return apparatus comprising an apparatus body (100), characterized in that: a connecting head according to any one of claims 1 to 7.

Technical Field

The invention relates to a pipe fitting, in particular to a connector of the pipe fitting and a water return device.

Background

The connector of the pipe fitting (such as water or gas) of the conventional device is generally a pipe body with double thread sections, or a rotatable nut is arranged at one end of the pipe body, the connection between the nut 300 and the pipe body 500 is generally realized by screwing the T-shaped tubular bolt fixing member 400 and the pipe body 500 (shown in fig. 10), and then the nut 300 is rotatably fixed on the pipe body.

Disclosure of Invention

The invention aims to provide a connector and a water return device, and aims to solve the technical problems of convenience in assembly and replacement and material consumption saving.

In order to solve the problems, the invention adopts the following technical scheme: a connector comprises a hollow tubular pipe body and a nut which is rotatably and movably connected to the pipe body, wherein the nut is detachably and movably connected to the pipe body, the pipe body comprises a threaded connection section and a nut connection section, a connection plate is arranged between the threaded connection section and the nut connection section to prevent the nut from being separated from the pipe body and fix the pipe body, a first annular boss which is protruded for a circle is arranged on the outer wall of the pipe at one end, away from the threaded connection section, of the nut connection section, a second annular boss which is protruded for a circle is arranged in an inner hole at one end of the nut, and the inner diameter of the second annular boss is larger than the outer diameter of the nut connection section, so that an avoidance gap is formed between the second annular boss and the outer annular wall of the nut connection section; the outer diameter of the first annular boss is smaller than the aperture of the inner hole of the nut and larger than the inner diameter of the second annular boss; the second annular boss is provided with two notches for dividing the second annular boss into a first arc-shaped section and a second arc-shaped section, the notches are communicated with an inner hole of the second annular boss, and the two notches are symmetrically arranged on the second annular boss; the arc length of the first arc-shaped section is greater than that of the second arc-shaped section; when the boss part at any end of the first annular boss is obliquely inserted into the nut inner hole from the notch towards the first arc-shaped section, the boss part at the other end, opposite to the boss part, of the first annular boss just avoids the second arc-shaped section to enter the nut inner hole, so that the first annular boss is abutted against the first arc-shaped section and the second arc-shaped section, and the nut is relatively limited to rotate on the nut connecting section.

Further, the distance from the end surface, opposite to the connecting plate, of the nut connecting section on the first annular boss to the connecting plate is larger than the thickness of the first arc-shaped section and the second arc-shaped section.

Furthermore, the end, opposite to the connecting plate, of the first annular boss is provided with a third annular boss, and the outer diameter of the third annular boss is smaller than the inner hole aperture of the second annular boss, so that the third annular boss is located in the inner hole of the second annular boss after the nut is connected with a pipeline.

Furthermore, an inner thread is arranged in an inner hole at one end of the pipe body, which is positioned at the threaded connection section.

Furthermore, be equipped with bellied fourth annular boss on the inner bore wall of pipe body, one of them one end screw thread of internal thread extends to fourth annular boss department.

Further, the inner hole aperture of the pipe body located at the nut connecting section is smaller than that of the threaded connecting section so as to form a body step surface.

Furthermore, the arc length of the arc edge of one end, far away from the nut inner hole, of the first arc section is less than or equal to one third of the perimeter of the second annular boss and greater than or equal to one fourth of the perimeter of the second annular boss, and the arc length of the arc edge of one end, far away from the nut inner hole, of the second arc section is less than or equal to one half of the arc length of the arc edge of one end, far away from the nut inner hole, of the first arc section.

The invention also provides a water return device which comprises a device body and the connector.

Compared with the prior art, one end of the pipe body is provided with the nut connecting chain segment, the nut connecting segment is provided with the first annular boss, the second annular boss of the nut is symmetrically provided with a notch, so that the second annular boss is divided into a first arc-shaped segment and a second arc-shaped segment with unequal arc lengths, when the boss part at any end of the first annular boss is obliquely inserted into the inner hole of the nut from the notch to one end of the first arc-shaped segment, the boss part at the other end of the first annular boss, which is opposite to the boss part at the end, just avoids the second arc-shaped segment, the first annular boss completely enters the inner hole of the nut, the first annular boss is abutted to the first arc-shaped segment and the second arc-shaped segment, and the nut is relatively limited to rotate on the nut connecting segment; thereby be convenient for the assembly of nut and pipe body, and when the nut appears taking off the silk or the fracture problem, can only change this nut, and need not to change the connector is whole, saved the consumptive material.

Drawings

Fig. 1-1 is a schematic perspective view of the present invention.

Fig. 1-2 are schematic external structural views of the present invention.

Fig. 2 is a cross-sectional view taken along a-a of fig. 1-2.

Fig. 3 is a schematic view of the external structure of the pipe body of the present invention.

Figure 4 is a top view of the nut of the present invention.

Fig. 5 is a sectional view taken along the direction B-B in fig. 4.

Fig. 6 is a schematic view of the internal structure of another tube body of the present invention.

FIG. 7 is a first schematic view of the nut of the present invention assembled with a tube body.

FIG. 8 is a second schematic view of the nut of the present invention assembled with a tube body.

FIG. 9 is a schematic structural diagram of a water return device of the present invention.

Fig. 10 is a schematic structural diagram of a conventional connector.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

As shown in fig. 1-1, fig. 1-2, fig. 3, fig. 4 and fig. 5, the present invention discloses a connecting head, comprising a hollow tubular pipe body 1 and a nut 2 rotatably movably connected to the pipe body 1, wherein: the nut 2 is detachably and movably connected to the pipe body 1;

the pipe body 1 comprises a threaded connection section 3 and a nut connection section 5, and a connection plate 4 is arranged between the threaded connection section 3 and the nut connection section 5 to prevent the nut 2 from being separated from the pipe body 1 and fix the pipe body 1; a first annular boss 8 protruding for a circle is arranged on the outer wall of the pipe at one end, far away from the threaded connection section 3, of the nut connection section 5, correspondingly, a second annular boss 6 protruding for a circle is arranged in the inner hole at one end of the nut 2, a boss inner hole 61 is arranged on the second annular boss 6, and the aperture of the boss inner hole 61 is larger than the outer diameter of the nut connection section 5, so that an avoidance gap is formed between the second annular boss 6 and the outer annular wall of the nut connection section 5; specifically, the boss inner hole 61 is slightly larger than the outer diameter of the nut connecting section 5; the outer diameter of the first annular boss 8 is smaller than the inner hole diameter of the screw cap 2 and larger than the inner hole diameter of the boss inner hole 61, so that when the screw cap 2 is connected to the screw cap connecting section 5, the first annular boss 8 is positioned in the inner hole of the screw cap 2, and the second annular boss 6 is sleeved outside the screw cap connecting section 5;

a notch 7 (shown in fig. 4) for dividing the second annular boss 6 into a first arc-shaped section 11 and a second arc-shaped section 12 is arranged on the second annular boss 6, the notch 7 is communicated with a boss inner hole 61 of the second annular boss 6, and the notches 7 are symmetrically arranged on the second annular boss 6; the arc length of the first arc-shaped section 11 is greater than the arc length of the second arc-shaped section 12; as shown in fig. 7 and 8, when the boss portion at any end of the first annular boss 8 is inserted into the inner hole of the nut 2 obliquely from the notch 7 and the boss inner hole 61 toward the first arc-shaped section 11, the boss portion at the other end of the first annular boss 8 opposite to the boss portion just avoids the second arc-shaped section 12 and enters the inner hole of the nut 2, so that the first annular boss 8 is abutted to the first arc-shaped section 11 and the second arc-shaped section 12, the nut 2 is relatively limited to rotate on the nut connecting section 5, and the connecting plate 4 prevents the nut 2 from separating from the pipe body 1 from one end of the threaded connecting section 3.

In the present invention, as shown in fig. 2, the nut connecting section 5 is located at a distance D from the surface of the first annular projection 8 opposite to the connecting plate 4 to the surface of the connecting plate 4₁Is larger than the thickness D of the first arc-shaped section 11 and the second arc-shaped section 12₂To ensure that enough space is left on the nut connecting end 5 to ensure that when the boss part at any end of the first annular boss 8 is obliquely inserted into the inner hole of the nut 2 from the notch 7 towards the first arc-shaped section 11, the boss part inserted into the first arc-shaped section 11 can completely enter the inner hole of the nut 2, so that the boss part at the other end opposite to the boss part just avoids the second arc-shaped section 12 to enter the inner hole of the nut 2; the arc length D of the notch 7₅The circumference of the inner hole of the nut 2 is more than one half and less than one third of the circumference of the inner hole of the nut 2, so that the first annular boss 8 can smoothly enter; the first arc-shaped section 11 is opposite to the second arc-shaped section 12.

As shown in fig. 2, a third annular boss 9 is disposed at an end of the first annular boss 6 opposite to the connecting plate 4, an outer diameter of the third annular boss 9 is smaller than an inner hole 61 of the second annular boss 6, so that the third annular boss 9 is located in the inner hole 61 of the second annular boss 6 after the nut 2 is connected to the pipeline, the axis of the pipe body 1 and the axis of the nut 2 are located on the same straight line, and the pipe body 1 and the nut 2 are prevented from being shaken in a transition manner.

As shown in fig. 2, an inner thread 13 is provided in an inner hole of one end of the pipe body 1 located in the threaded connection section 3, so that when the connected pipe body is a threaded joint, connection can be achieved by selecting a connector with a pipe diameter the same as the inner hole of the pipe body 1 located in the threaded connection section 3 in aperture, and thus compatibility of the connector is improved.

As shown in fig. 2, as an embodiment of the pipe body 1 of the present invention, a fourth annular boss 10 is provided on the inner hole wall of the pipe body 1, and specifically, the fourth annular boss 10 is provided between the threaded connection section 3 and the nut connection section 5 of the pipe body 1, so that the connected pipe body is limited by the fourth annular boss 10 after being screwed into the pipe body 1.

As shown in fig. 6, as another embodiment of the pipe body 1 of the present invention, the pipe body 1 is located at a position where the bore diameter of the nut connecting section 5 is smaller than the bore diameter of the threaded connecting section 3 to form a body step surface 14.

In the invention, the arc length D of the arc edge of the first arc-shaped section 11 far away from the inner hole of the nut 2₃Less than or equal to one third of the circumference of the boss inner hole 61 and greater than or equal to one fourth of the circumference of the second annular boss 6; and the arc length D of the arc edge of one end of the second arc-shaped section 12 far away from the inner hole of the nut 2₄Is less than or equal to the arc length D of the arc edge at one end of the first arc-shaped section 11 far away from the inner hole of the nut 2₃Further, when the boss part at any end of the first annular boss 8 is obliquely inserted into the inner hole of the nut 2 from the notch 7 towards the first arc-shaped section 11, the boss part at the other end opposite to the boss part just avoids the second arc-shaped section 12 and enters the inner hole of the nut 2; the outer ring diameter of the first annular boss 8 is slightly smaller than the bore diameter of the inner bore of the screw cap 2 and larger than the inner bore diameter of the second annular boss 6; the outer ring diameter of the fourth annular boss 10 is slightly smaller than that of the fourth annular bossThe inner bore diameter of the two annular bosses 6.

As shown in fig. 9, the invention also discloses a water returning device, which comprises a device body 100 and connectors 200 arranged on the water inlet 101 and the water outlet 102 of the device body, wherein the connectors are realized by adopting the structure, and are not described again.

According to the invention, the nut connecting chain segment is arranged at one end of the pipe body, the first annular boss is arranged on the nut connecting segment, the second annular boss of the nut is symmetrically provided with the notch, so that the second annular boss is divided into the first arc-shaped segment and the second arc-shaped segment with unequal arc lengths, when the boss part at any end of the first annular boss is obliquely inserted into the inner hole of the nut from the notch to one end of the first arc-shaped segment, the boss part at the other end of the first annular boss, which is opposite to the boss part at the end, just avoids the second arc-shaped segment, the first annular boss completely enters the inner hole of the nut, so that the first annular boss is abutted against the first arc-shaped segment and the second arc-shaped segment, and the nut is relatively limited to rotate on the nut connecting segment; thereby be convenient for the assembly of nut and pipe body, and when the nut appears taking off the silk or the fracture problem, can only change this nut, and need not to change the connector is whole, saved the consumptive material.