Threaded connection structure for water outlet of plastic bucket

Abstract

According to the water outlet threaded connection structure of the plastic bucket, an arc-shaped elastic piece and a reinforcing turncap are arranged between a water outlet and a water outlet connector pipe, so that the water outlet connector pipe is fixedly connected with the water outlet and a tubular connection block through threaded fit of a first external thread and a first internal thread; at the moment, clamping blocks on the arc-shaped elastic pieces correspond to clamping grooves in a limiting outer boss of the water outlet connector pipe, then the water outlet connector pipe is sleeved with a reinforcing turncap, and the reinforcing turncap is fixedly connected with the tubular connecting block and the arc-shaped elastic pieces through thread fit of a second internal thread and a second external thread, so that the reinforcing turncap extrudes the multiple arc-shaped elastic pieces; the inner side walls of the multiple arc-shaped elastic pieces are in extrusion fit with the outer side wall of the limiting outer boss of the water outlet connector pipe, meanwhile, the clamping blocks on the arc-shaped elastic pieces are clamped in the clamping grooves in the limiting outer boss, and therefore connection between the water outlet connector pipe and the water outlet of the plastic barrel is more stable.

Description

Technical Field

[0001] The present application relates to the technical field of plastic barrel products, and in particular to a threaded connection structure of a water outlet of a plastic barrel. Background Art

[0002] The connection between the water outlet and the interface pipe of a traditional plastic bucket is usually only through a threaded connection, which is not stable enough. After the plastic bucket is used for a long time, due to frequent moving or external force collision, the threaded connection structure between the water outlet and the interface pipe of the plastic bucket may loosen or even fall off, thereby reducing the sealing performance of the plastic bucket mouth. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of this application is to provide a threaded connection structure for a water outlet of a plastic bucket to solve the problems raised in the above-mentioned background technology.

[0004] According to one aspect of the present application, a water outlet threaded connection structure of a plastic barrel comprises a plastic barrel, a water outlet, a tubular connecting block, a water outlet interface pipe and a reinforced screw cap, a water outlet is provided at the bottom of the outer wall of the plastic barrel, and a tubular connecting block is fixed outwardly on the outer wall of the plastic barrel located at the water outlet position, the water outlet is aligned with the pipe mouth of the tubular connecting block, a plurality of arc-shaped elastic sheets are fixedly provided uniformly and equidistantly along the circumference of the opening end surface of the tubular connecting block away from the plastic barrel, a water outlet interface pipe is provided on the inner side of the water outlet and the tubular connecting block, and the water outlet interface pipe extends beyond the opening end of the tubular connecting block, and the arc-shaped elastic sheet is provided on the outer peripheral side of the water outlet interface pipe, a continuous internal thread is provided on the inner side wall of the water outlet and the tubular connecting block, an external thread is provided on the outer side wall of the water outlet interface pipe body located inside the water outlet and the tubular connecting block, The water outlet interface pipe is fixedly connected to the water outlet and the tubular connecting block by thread cooperation of external thread one and internal thread one, and a reinforcing screw cap is sleeved on the outer peripheral side of the water outlet interface pipe body located at the water outlet and the outside of the tubular connecting block. The reinforcing screw cap has an open end at one end close to the water outlet, and an end of the reinforcing screw cap away from the water outlet is a limited end. A through hole is penetrated through the limited end surface of the reinforcing screw cap, and the inner diameter size of the through hole is consistent with the outer diameter size of the water outlet interface pipe. The inner side wall of the reinforcing screw cap is provided with internal thread two, and the outer side wall of the tubular connecting block and the arc-shaped elastic sheet is provided with continuous external thread two, and the reinforcing screw cap is fixedly connected to the tubular connecting block and the arc-shaped elastic sheet by thread cooperation of internal thread two and external thread two, and the reinforcing screw cap squeezes multiple arc-shaped elastic sheets so that the inner side walls of multiple arc-shaped elastic sheets are squeezed and fit the outer side wall of the water outlet interface pipe.

[0005] Preferably, a limiting outer boss is fixedly provided on the outer side wall of the water outlet interface pipe body located inside the multiple arc-shaped elastic sheets. When the reinforcing screw cap is threadedly connected to the tubular connecting block and the arc-shaped elastic sheet, the limiting end of the reinforcing screw cap contacts the limiting outer boss, and the reinforcing screw cap squeezes the multiple arc-shaped elastic sheets to fit with the limiting outer boss.

[0006] Preferably, a clamping block is fixedly provided on the inner side wall of each of the arc-shaped elastic sheets, and a plurality of clamping grooves are evenly and equidistantly provided on the outer side wall of the limiting outer boss of the water outlet interface pipe along its circumference, and the number and shape and size of the plurality of clamping grooves correspond to and match the number and shape and size of the plurality of clamping blocks one by one, and when the reinforcing screw cap is threadedly connected to the tubular connecting block and the arc-shaped elastic sheet, the clamping block is clamped in the corresponding clamping groove.

[0007] Preferably, a limiting step is provided at the connection between the inner side wall of the tubular connecting block and the inner side wall of the arc-shaped elastic sheet, and an annular sealing ring is provided between the limiting step and the limiting outer boss.

[0008] Preferably, in an initial state, each of the arc-shaped elastic sheets is in an outwardly elastically tilted state.

[0009] Preferably, the tubular connecting block and the plastic barrel body are an integrally formed structure.

[0010] The advantages of the present application over the prior art are: a threaded connection structure for a water outlet of a plastic bucket of the present application, through an arc-shaped elastic sheet and a reinforcing screw cap arranged between the water outlet and the water outlet interface pipe, enables the water outlet interface pipe to be fixedly connected to the water outlet and the tubular connecting block through the threaded cooperation of the external thread one and the internal thread one, at which time the clamping block on the arc-shaped elastic sheet corresponds to the clamping groove on the limiting outer boss of the water outlet interface pipe, and then the reinforcing screw cap is placed on the outside of the water outlet interface pipe and fixedly connected to the tubular connecting block and the arc-shaped elastic sheet through the threaded cooperation of the internal thread two and the external thread two, so that the reinforcing screw cap squeezes multiple arc-shaped elastic sheets, so that the inner side walls of the multiple arc-shaped elastic sheets are squeezed and fitted with the outer side walls of the limiting outer boss of the water outlet interface pipe, and at the same time, the clamping block on the arc-shaped elastic sheet is clamped in the clamping groove on the limiting outer boss, thereby making the connection between the water outlet interface pipe and the water outlet of the plastic bucket more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a stereoscopic diagram of a threaded connection structure of a water outlet of a plastic bucket according to an embodiment of the present application.

[0012] Figure 2 It is a cross-sectional view of a threaded connection structure of a water outlet of a plastic bucket according to an embodiment of the present application.

[0013] Figure 3 yes Figure 2 A schematic diagram of the enlarged structure of part A in the middle.

[0014] Figure 4 This is a three-dimensional exploded view of the water outlet of a plastic bucket according to an embodiment of the present application.

[0015] Figure 5 It is a disassembled cross-sectional view of a water outlet of a plastic bucket according to an embodiment of the present application.

[0016] Figure numerals: 1. plastic bucket; 2. water outlet; 3. tubular connecting block; 4. water outlet interface pipe; 5. reinforcement screw cap; 6. arc-shaped elastic sheet; 71. internal thread one; 72. external thread one; 81. internal thread two; 82. external thread two; 9. through hole; 10. limiting outer boss; 11. clamping block; 12. clamping groove; 13. limiting step; 14. annular sealing ring. DETAILED DESCRIPTION

[0017] In order to make the content of this application easier to understand, the technical solutions in the embodiments of this application will be described clearly and completely in conjunction with the drawings in the embodiments of this application. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the attached drawings. Figure 2 As used herein, the terms "inward" and "outward" refer to directions toward and away from, respectively, the geometric center of the particular component.

[0018] like Figure 1 to Figure 5 As shown, a water outlet threaded connection structure of a plastic barrel comprises a plastic barrel 1, a water outlet 2, a tubular connecting block 3, a water outlet interface pipe 4 and a reinforced screw cap 5. The water outlet 2 is provided at the bottom of the outer wall of the plastic barrel 1, and a tubular connecting block 3 is fixedly provided outwardly on the outer wall of the plastic barrel 1 at the position of the water outlet 2. The tubular connecting block 3 and the barrel body of the plastic barrel 1 are an integrally formed structure to ensure the sealing between the tubular connecting block 3 and the barrel body of the plastic barrel 1; the water outlet 2 is aligned with the pipe mouth of the tubular connecting block 3, and a plurality of arc-shaped elastic sheets 6 are fixedly provided uniformly and equidistantly along the circumference of the opening end surface of the tubular connecting block 3 away from the plastic barrel 1, and a limiting step 13 is provided at the connection between the inner wall of the tubular connecting block 3 and the inner wall of the arc-shaped elastic sheet 6, and an annular sealing ring 14 is provided at the position of the limiting step 13. In the initial state, each arc-shaped elastic sheet 6 is in an elastically tilted state outwardly as shown in FIG. Figure 5As shown, the arc-shaped elastic sheet 6 has elastic force, and a clamping block 11 is fixedly provided on the inner side wall of each arc-shaped elastic sheet 6; a water outlet interface pipe 4 is provided on the inner side of the water outlet 2 and the tubular connecting block 3, and the water outlet interface pipe 4 extends beyond the open end of the tubular connecting block 3, and the arc-shaped elastic sheet 6 is provided on the outer peripheral side of the water outlet interface pipe 4, and a limiting outer boss 10 is fixedly provided on the outer side wall of the water outlet interface pipe 4 located inside the plurality of arc-shaped elastic sheets 6, and a plurality of clamping grooves 12 are uniformly and equidistantly provided on the outer side wall of the limiting outer boss 10 of the water outlet interface pipe 4 along its circumferential direction, and the number, shape and size of the plurality of clamping grooves 12 are the same as those of the plurality of The number, shape and size of the blocks 11 correspond to each other and are adapted to each other; a continuous internal thread 71 is provided on the inner wall of the water outlet 2 and the tubular connecting block 3, and an external thread 72 is provided on the outer wall of the water outlet interface pipe 4 located inside the water outlet 2 and the tubular connecting block 3. The water outlet interface pipe 4 is fixedly connected to the water outlet 2 and the tubular connecting block 3 through the threaded cooperation of the external thread 72 and the internal thread 71. At this time, the limiting external boss 10 on the water outlet interface pipe 4 squeezes the annular sealing ring 14 at the limiting step 13 to improve the sealing between the water outlet interface pipe 4 and the water outlet 2; the water outlet interface pipe 4 is located between the water outlet 2 and the tubular connecting block 3. A reinforcing screw cap 5 is sleeved on the outer peripheral side of the water outlet interface pipe 4 outside the connecting block 3, the end of the reinforcing screw cap 5 close to the water outlet 2 is an open end, and the end of the reinforcing screw cap 5 away from the water outlet 2 is a limit end. A through hole 9 is penetrated through the limit end surface of the reinforcing screw cap 5, and the inner diameter of the through hole 9 is consistent with the outer diameter of the water outlet interface pipe 4. The inner side wall of the reinforcing screw cap 5 is provided with an internal thread 81, and the outer side wall of the tubular connecting block 3 and the arc-shaped elastic sheet 6 is provided with a continuous external thread 82. The reinforcing screw cap 5 can be fixed with the tubular connecting block 3 and the arc-shaped elastic sheet 6 through the threaded cooperation of the internal thread 81 and the external thread 82. Fixed connection, when the reinforcing screw cap 5 is threadedly connected with the tubular connecting block 3 and the arc-shaped elastic sheet 6, the limiting end of the reinforcing screw cap 5 contacts the limiting outer boss 10, and the reinforcing screw cap 5 squeezes multiple arc-shaped elastic sheets 6, so that the inner side walls of the multiple arc-shaped elastic sheets 6 are squeezed and fit the outer side walls of the limiting outer boss 10 on the water outlet interface pipe 4, and the rebound force of the arc-shaped elastic sheet 6 can act on the reinforcing screw cap 5 to make it self-locking to prevent it from falling off. At the same time, the clamping block 11 on the arc-shaped elastic sheet 6 is clamped in the clamping groove 12 on the limiting outer boss 10, thereby making the connection between the water outlet interface pipe 4 and the water outlet 2 of the plastic bucket 1 more stable.

[0019] In summary, it can be known that by arranging the arc-shaped elastic sheet 6 and the reinforcing screw cap 5 between the water outlet 2 and the water outlet interface pipe 4, the water outlet interface pipe 4 is fixedly connected to the water outlet 2 and the tubular connecting block 3 through the threaded cooperation of the external thread 72 and the internal thread 71. At this time, the clamping block 11 on the arc-shaped elastic sheet 6 corresponds to the clamping groove 12 on the limiting outer boss 10 of the water outlet interface pipe 4. Then the reinforcing screw cap 5 is put on the outside of the water outlet interface pipe 4 and fixedly connected to the tubular connecting block 3 and the arc-shaped elastic sheet 6 through the threaded cooperation of the internal thread 81 and the external thread 82. Then, the reinforcing screw cap 5 squeezes multiple arc-shaped elastic sheets 6, so that the inner side walls of the multiple arc-shaped elastic sheets 6 are squeezed and fitted with the outer side walls of the limiting outer boss 10 of the water outlet interface pipe 4. At the same time, the clamping block 11 on the arc-shaped elastic sheet 6 is clamped in the clamping groove 12 on the limiting outer boss 10, so that the connection between the water outlet interface pipe 4 and the water outlet 2 of the plastic bucket 1 is more stable.

[0020] The above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, rather than to limit them. Although the embodiments of the present application are described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, without departing from the spirit and scope defined by the claims of the present application.

Claims

1. A threaded connection structure for a water outlet of a plastic barrel, comprising a plastic barrel (1), a water outlet (2), a tubular connection block (3), a water outlet interface pipe (4) and a reinforcement screw cap (5), characterized in that: The bottom of the outer wall of the plastic barrel (1) is provided with a water outlet (2), and a tubular connecting block (3) is fixedly provided outwardly on the outer wall of the plastic barrel (1) at the position of the water outlet (2), the water outlet (2) is aligned with the pipe opening of the tubular connecting block (3), and a plurality of arc-shaped elastic sheets (6) are fixedly provided uniformly and equidistantly along the circumference of the opening end surface of the tubular connecting block (3) away from the plastic barrel (1), and a water outlet interface pipe (4) is provided inside the water outlet (2) and the tubular connecting block (3), and the water outlet interface pipe (4) is ) extends beyond the open end of the tubular connecting block (3), and the arc-shaped elastic sheet (6) is arranged on the outer peripheral side of the water outlet interface pipe (4), the inner side wall of the water outlet (2) and the tubular connecting block (3) is provided with a continuous internal thread (71), and the outer side wall of the water outlet interface pipe (4) located inside the water outlet (2) and the tubular connecting block (3) is provided with an external thread (72), and the water outlet interface pipe (4) is connected to the water outlet (4) through the threaded cooperation of the external thread (72) and the internal thread (71) 2) and the tubular connecting block (3), a reinforcing screw cap (5) is sleeved on the outer peripheral side of the water outlet interface pipe (4) located outside the water outlet (2) and the tubular connecting block (3), the end of the reinforcing screw cap (5) close to the water outlet (2) is an open end, and the end of the reinforcing screw cap (5) away from the water outlet (2) is a limiting end, and a through hole (9) is formed through the limiting end surface of the reinforcing screw cap (5), the inner diameter of the through hole (9) is consistent with the outer diameter of the water outlet interface pipe (4), and the reinforcing screw cap (5) is provided with a through hole (9) extending through the limiting end surface of the reinforcing screw cap (5). The inner wall of the screw cap (5) is provided with two internal threads (81), and the outer walls of the tubular connecting block (3) and the arc-shaped elastic sheet (6) are provided with two continuous external threads (82). The reinforcing screw cap (5) is fixedly connected to the tubular connecting block (3) and the arc-shaped elastic sheet (6) through the threaded cooperation of the two internal threads (81) and the two external threads (82), and the reinforcing screw cap (5) squeezes a plurality of the arc-shaped elastic sheets (6), so that the inner walls of the plurality of the arc-shaped elastic sheets (6) are pressed and fit against the outer wall of the water outlet interface pipe (4).

2. The threaded connection structure of a water outlet of a plastic bucket according to claim 1, characterized in that: A limiting outer boss (10) is fixedly provided on the outer side wall of the water outlet interface pipe (4) located inside the plurality of arc-shaped elastic sheets (6); when the reinforcing screw cap (5) is threadedly connected to the tubular connecting block (3) and the arc-shaped elastic sheet (6), the limiting end of the reinforcing screw cap (5) contacts the limiting outer boss (10), and the reinforcing screw cap (5) squeezes the plurality of arc-shaped elastic sheets (6) and the limiting outer boss (10) to fit them together.

3. The threaded connection structure of a water outlet of a plastic bucket according to claim 2, characterized in that: A clamping block (11) is fixedly provided on the inner side wall of each arc-shaped elastic sheet (6), and a plurality of clamping grooves (12) are evenly and equidistantly provided on the outer side wall of the limiting outer boss (10) of the water outlet interface pipe (4) along its circumference. The number and shape and size of the plurality of clamping grooves (12) correspond to and match the number and shape and size of the plurality of clamping blocks (11). When the reinforcing screw cap (5) is threadedly connected to the tubular connecting block (3) and the arc-shaped elastic sheet (6), the clamping block (11) is clamped in the corresponding clamping groove (12).

4. A threaded connection structure for a water outlet of a plastic bucket according to claim 3, characterized in that: A limiting step (13) is provided at the connection between the inner side wall of the tubular connecting block (3) and the inner side wall of the arc-shaped elastic sheet (6), and an annular sealing ring (14) is provided between the limiting step (13) and the limiting outer boss (10).

5. The threaded connection structure of a water outlet of a plastic bucket according to claim 1, characterized in that: In the initial state, each of the arc-shaped elastic sheets (6) is in an outward elastic tilting state.

6. The threaded connection structure of a water outlet of a plastic bucket according to claim 1, characterized in that: The tubular connecting block (3) and the barrel body of the plastic barrel (1) are an integrally formed structure.

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