TWI812281B - Pipeline connection structure - Google Patents

Abstract

The invention provides a pipeline connection structure, which comprises a first pipe fitting, a second pipe fitting and a sliding sleeve, wherein the first pipe fitting is used to connect a fluid conduit, and the second pipe fitting pivots the first pipe fitting. The second pipe fitting is used to connect a fluid device, so that the first pipe fitting and the second pipe fitting are engaged and connected with the fluid device and the fluid pipe. The sliding sleeve can be reciprocally connected with the second pipe fitting between a first position and a second position along the axial direction, the first pipe fitting forms a first driven part, and the second pipe fitting forms a second driven part. The sliding sleeve cooperates with the first driven part and the second driven part to form a detent part, so that the sliding sleeve brakes the second pipe fitting to rotate, and can optionally brakes the first pipe fitting to rotate.

Description

Pipeline connection structure

The present invention relates to a fluid pipeline assembly; in particular, it refers to an innovative structural type revealer of a pipeline connection structure for connecting a fluid device and a fluid pipe.

When the fluid pipeline changes the flow direction or connects the fluid device, a two-way pipeline connection structure is often used. The pipeline connection structure is used to connect two fluid pipes. The pipeline connection structure can also be used to connect one fluid pipe. A fluid pipe and a fluid device. Specific examples of the fluid device include but are not limited to water spray guns, faucets, pumps and water tanks.

The water spray gun is a handheld fluid device for sprinkling water. During the water sprinkling process, the water spray gun often needs to be moved. A flexible fluid pipe is selected, and the pipeline is connected between the fluid pipe and the water spray gun. The connection structure, the pipe joint of the fluid pipe connected to the pipeline connection structure can move with the water spray gun, providing the convenience of watering.

The aforementioned pipeline connection structure connected between the water spray gun and the fluid pipe can be divided into a fixed pipeline connection structure and a rotating pipeline connection structure. The fixed pipeline connection structure mainly consists of a first pipe section and a first pipe section. The second pipe section is connected to each other. The first pipe section is used to axially connect the water spray gun. The second pipe section is used to axially connect the fluid pipe. The first pipe section and the second pipe section cannot rotate relative to each other. The water spray gun changes the water sprinkling. direction or angle, the water spray gun exerts force on the fluid pipe through the fixed pipe joint, causing the flexible fluid pipe to wind or twist. The fluid pipe is easily entangled, making it difficult to move the water spray gun. The rotary pipeline connection structure is mainly composed of a first pipe and a second pipe that are relatively rotatable and axially pivoted. The first pipe is screwed to the water spray gun, the second pipe is screwed to the fluid pipe, and the third pipe is screwed to the fluid pipe. One end of the second pipe pivots into the first pipe. When the water spray gun changes the direction or angle of spraying, the first pipe and the second pipe can rotate relative to each other. The fluid pipe will not be affected by the water spray gun and wind up. Or twist.

After investigation, it was found that the following problems and disadvantages still exist in the practical application experience of this rotary pipeline connection structure: when the first pipe rotates into or out of the water spray gun, the first pipe and the water spray gun need to rotate relative to each other, which cannot By rotating the second tube, the first tube rotates. The rotary pipeline connection structure is further provided with a tubular operating section. The operating section is connected to one axial end of the first tube, and the operating section is located on the first tube. Between the pipe and the second pipe, controlling the operating section can cause the first pipe to rotate into or exit the water inlet pipe, but the operating section cannot be used to operate the second pipe to rotate relative to the pipe joint. The operating section The arrangement makes it difficult to reduce the overall axial length of the rotary pipeline connection structure, and it is usually necessary to use tools such as wrenches or pliers to control the rotation of the operating section.

Therefore, in view of the above-mentioned problems existing in the conventional rotary pipeline connection structure, how to develop an innovative structure that can be more ideal and practical needs to be considered by the relevant industry and the direction of breakthrough; in view of this , the inventor has many years of experience in the manufacturing, development and design of related products. After detailed design and careful evaluation based on the above goals, he finally arrived at a truly practical invention.

The main purpose of the present invention is to provide a pipeline connection structure. The technical problem it aims to solve is to make innovative breakthroughs with the goal of developing a new pipeline connection structure that is more ideal and practical.

Based on the aforementioned objectives, the technical features of the present invention to solve the problem mainly lie in that the pipeline connection structure includes:

A first pipe, the radial outer circumference of the first pipe is formed with a first thread, so that the first pipe is connected to a fluid device, the axial end of the first pipe is the first end, and the radial end of the first pipe is the first end. A first driven part is formed on the outer periphery, and the first driven part is located between the first thread and the first end;

A second pipe is a tubular structure mainly composed of a pivot section and a sleeve section that are integrally connected in the axial direction. The pivot section is rotatably mounted inside the first pipe with respect to the first pipe. According to The first pipe is connected to the second pipe, and a watertight state is formed between the pivot section and the first pipe. The sleeve section has a second end opposite to the first end, and an interior of the sleeve section is formed. The second thread connects the second pipe fitting to a fluid pipe, the first pipe fitting combines with the second pipe fitting to connect and communicate the fluid device and the fluid pipe, and the radial outer periphery of the sleeve section forms a second driven part; as well as

A tubular sliding sleeve can axially slidably sleeve the sleeve section, and the sliding sleeve reciprocates along the axial direction of the sleeve section between a first position and a second position. The sliding sleeve cooperates with the sleeve section. The first driven part and the second driven part form a braking part, and the braking part and the second driven part form a matching relationship along the radial direction of the sleeve section, so that the braking part and the first driven part The two parts are opposite to each other along the radial direction of the sliding sleeve, thereby driving the first pipe member to rotate.

The main effect and advantage of the present invention is that the sliding sleeve can be used to change the relative rotation or simultaneous rotation of the first pipe fitting and the second pipe fitting in the first position and the second position, and the arrangement of the sliding sleeve will not Outside the scope of the first pipe member and the second pipe member, the axial length may be increased.

Please refer to Figures 1 to 5, which are preferred embodiments of the pipeline connection structure of the present invention. However, these embodiments are for illustration only and are not limited by this structure in patent applications.

The preferred embodiment of the pipeline connection structure can be used to connect a fluid device (not shown) and a fluid pipe (not shown). The preferred embodiment includes a first pipe 10 and a second pipe 20 And a tubular sliding sleeve 30, in which a first thread 11 is formed on the radial periphery of the first pipe member 10. The first thread 11 is used to connect a fluid device (not shown), so that the first pipe member 10 Connected to the fluid device, one axial end of the first pipe 10 is the first end 12, and a plurality of first driven parts 13 are formed on the radial outer periphery of the first pipe 10. Each first driven part 13 is formed along the first driven part 13. The pipe fitting 10 is arranged at intervals in the circumferential direction, and the first driven portion 13 is located between the first thread 11 and the first end 12 .

The second pipe 20 is a tubular structure mainly composed of a pivot section 21 and a sleeve section 22 integrally connected in the axial direction. The pivot section 21 is rotatably mounted on the first pipe 10 . Inside the pipe fitting 10, the first pipe fitting 10 is connected to the second pipe fitting 20, and a watertight state is formed between the pivot section 21 and the first pipe fitting 10. The sleeve section 22 has a second end 23 and the second pipe fitting 20. One end 12 is opposite, and a second thread 24 is formed inside the sleeve section 22. The sleeve section 22 is used to thread a fluid pipe (not shown), so that the second pipe fitting 20 is connected to the fluid pipe. The first pipe 10 is combined with the second pipe 20 to connect and communicate with the fluid device and the fluid pipe. A plurality of second driven parts 25 are formed on the radial outer periphery of the sleeve section 22, and each second driven part 25 is formed along the The socket sections 22 are arranged at intervals in the circumferential direction.

The sliding sleeve 30 is axially slidable and sleeves the sleeve section 22, and the sliding sleeve 30 reciprocates along the axial direction of the sleeve section 22 between a first position 91 and a second position 92. The sliding sleeve 30 cooperates with the first driven part 13 and the second driven part 25 to form a plurality of latch parts 32 , and the latch parts 32 and the second driven part 25 form a matching relationship along the radial direction of the sleeve section 22 , so that the driving part 32 and the first driven part 13 are opposed along the radial direction of the sliding sleeve 30, thereby driving the first pipe member 10 to rotate.

The number of the first passive part 13 , the second passive part 25 and the braking part 32 can be increased or decreased as needed, but with at least one first passive part 13 , at least one second passive part 25 and at least one The number of the first driven part 13 , the second driven part 25 and the number of the engaging part 32 is the same.

With the above structural composition and technical features, as shown in FIG. 3 , when the sliding sleeve 30 is located at the first position 91 , the actuating part 32 and the second driven part 25 form a cooperative relationship, and the actuating part 32 and the first driven portion 13 does not form a radially opposite matching relationship. The rotating operation of the sliding sleeve 30 can drive the second pipe member 20 to rotate, but cannot drive the first pipe member 10 to rotate. Accordingly, the first pipe member 10 And the second pipe member 20 can rotate relatively. The preferred embodiment is used to connect and communicate the fluid device and the flexible fluid tube. When the fluid device and the fluid tube move relative to each other, the preferred embodiment can make the fluid The tube rotates relative to the fluid device, and the fluid tube will not be coiled or twisted. The fluid device may be a water spray gun as described in the prior art. Since the sliding sleeve 30 can rotate in conjunction with the second pipe member 20, rotating the sliding sleeve 30 can perform the operation of connecting or disassembling the second pipe member 20 and the fluid pipe.

As shown in FIG. 5 , when the sliding sleeve 30 slides along the axial direction and is located at the second position 92 , the latch portion 32 forms a matching relationship with the first driven portion 13 and the second driven portion 25 , and the sliding sleeve is rotated. 30 can drive the first pipe fitting 10 and the second pipe fitting 20 to rotate simultaneously. The first pipe fitting 10 and the second pipe fitting 20 cannot rotate relative to each other. Rotating the sliding sleeve 30 can perform the operation of the first pipe fitting 10 and the fluid device. The operation of joining or decomposing.

The sliding sleeve 30 is arranged not outside the scope of the first pipe member 10 and the second pipe member 20, and further increases the axial length of the preferred embodiment.

Furthermore, the radial outer circumference of the sliding sleeve 30 is polygonal, and the rotation of the sliding sleeve 30 can be controlled without using tools such as a wrench or pliers.

The first driven portion 13 is a strip structure that radially protrudes from the first pipe 10 , and the first driven portion 13 extends along the axial direction of the first pipe 10 to the first end 12 .

The second driven part 25 is a strip-shaped structure that radially protrudes from the socket section 22 , and the second driven part 25 extends along the axial direction of the socket section 22 to the second end 23 .

The sliding sleeve 30 has a first tube wall 34 surrounding the sleeve section 22 . The first tube wall 34 is recessed to form a long groove-shaped detent portion 32 . The detent portion 32 is along the axis of the sliding sleeve 30 . Extending to one end of the sliding sleeve 30 facing the first pipe member 10 , when the sliding sleeve 30 is located at the first position 91 , each first driven portion 13 is embedded in each of the actuating portions 32 .

The first pipe member 10 and the second pipe member 20 respectively limit the reciprocating movement of the sliding sleeve 30 between the first position 91 and the second position 92 .

A first convex portion 14 protrudes from the radial outer periphery of the first pipe member 10 , and a second convex portion 26 protrudes from the radial outer periphery of the sleeve section 22 . The first convex portion 14 and the second convex portion 26 extend along Disposed axially apart from the second pipe member 20, a third protrusion 36 is formed in the tubular interior of the sliding sleeve 30. Specifically, the third protrusion 36 is formed on the first tube wall 34. The sliding sleeve 30 When in the first position 91 , the second protrusion 26 is located between the first protrusion 14 and the third protrusion 36 , and the second protrusion 26 faces the sliding sleeve 30 in the direction of the first pipe 10 Sliding forms a limit, and the driving part 32 and the second driven part 25 face each other along the radial direction of the sliding sleeve, so that the sliding sleeve 30 drives the second pipe 20 to rotate, and the first pipe 10 and the The second pipe 20 is relatively rotated. When the sliding sleeve 30 is in the second position 92 , the third protrusion 36 is located between the first protrusion 14 and the second protrusion 26 . The first protrusion 14 is opposite to The sliding sleeve 30 slides in the direction of the first pipe 10 to form a limit. The latch portion 32 , the first driven portion 13 and the second driven portion 25 face each other along the radial direction of the sliding sleeve 30 , so that the The sliding sleeve 30 drives the first pipe member 10 and the second pipe member 20 to rotate.

When the sliding sleeve 30 changes the first position 91 and the second position 92 , the second convex part 26 or the first convex part 14 forms a blocking effect on the third convex part 36 , and the material of the sliding sleeve 30 is used Due to elasticity, the third protrusion 36 can repeatedly pass over the second protrusion 26 to change the position of the sliding sleeve 30. When the third protrusion 36 passes over the second protrusion 26, the second protrusion 26 moves against the second protrusion 26. The relative force of the third protrusion 36 is transmitted through the sliding sleeve 30 to the hand (not shown in the figure) that operates the displacement of the sliding sleeve 30. When the third protrusion 36 touches the first protrusion 14, the The relative force of the first convex part 14 to the third convex part 36 is also transmitted to the hand through the sliding sleeve 30 , and the user can judge the positioning of the third convex part 36 by the feeling of the hand.

The first protrusion 14 is an annular structure surrounding the first pipe 10, the second protrusion 26 extends along the circumferential direction of the sleeve section 22, the sliding sleeve 30 rotates with the second pipe 20, and the After the first pipe member 10 and the second pipe member 20 are relatively rotated, since the third protrusion 36 can maintain the annular first protrusion 14 in the axial direction at any time, the sliding sleeve 30 can be operated immediately from the The first position 91 moves to the second position 92, and the first convex part 14 blocks the third convex part 36, which provides high operational convenience.

A stop ring 27 is radially expanded around the outer circumference of the sleeve section 22. The stop ring 27 forms a stop for the end of the sliding sleeve 30 away from the first pipe member 10. The sliding sleeve 30 moves from the second position 92 to In the first position 91 , the sliding sleeve 30 is prevented from moving excessively and disengaging from the socket section 22 .

The first pipe 10 has a second pipe wall 15 surrounding the pivot section 21 . A plurality of limiting portions 16 are protruding from the inner wall of the second pipe wall 15 . Each of the limiting portions 16 follows the second pipe wall 15 are arranged at intervals in the circumferential direction. A convex ring 28 is radially expanded on the outside of the pivot section 21. The limiting portion 16 is located between the convex ring 28 and the socket section 22. The convex ring 28 abuts against each of the limiting portions 16. , whereby the first pipe fitting 10 and the second pipe fitting 20 are axially positioned; specifically, when the first pipe fitting 10 and the second pipe fitting 20 are axially assembled, the pivot section 21 passes through the first end 12 Entering the first pipe 10 , utilizing the material elasticity of the flange 28 and each of the limiting portions 16 , the flange 28 relatively presses and crosses over each of the limiting portions 16 , and each of the limiting portions 16 is positioned on the flange 28 and the limiting portions 16 . between the sleeve segments 22, thereby axially positioning the first pipe member 10 and the pivot segment 21.

The pivot section 21 is surrounded by an anti-leakage ring 29 . The anti-leakage ring 29 elastically abuts the second pipe wall 15 , thereby forming a watertight state between the pivot section 21 and the first pipe member 10 .

10:The first pipe fitting

11:First thread

12:First end

13:The first passive unit

14:The first convex part

15:Second pipe wall

16: Restricted Department

20:Second pipe fitting

21: Pivot section

22: Socket segment

23:Second end

24:Second thread

25:Second passive department

26:Second convex part

27: Stop ring

28:Protruding ring

29: Anti-leak ring

30:Sliding sleeve

32: Actuation Department

34:First tube wall

36: The third convex part

91:First position

92:Second position

Figure 1 is a perspective view of a preferred embodiment of the present invention. Figure 2 is an exploded perspective view of the preferred embodiment of the present invention. Figure 3 is an axial cross-sectional view of the preferred embodiment of the present invention. Figure 4 is a front view of the sliding sleeve according to the preferred embodiment of the present invention. Figure 5 is an axial cross-sectional view of the sliding sleeve connecting the first pipe member according to the preferred embodiment of the present invention.

10:The first pipe fitting

11:First thread

13:The first passive unit

14:The first convex part

15:Second pipe wall

25:Second passive department

26:Second convex part

28:Protruding ring

30:Sliding sleeve

36: The third convex part

Claims (9)

A pipeline connection structure includes: a first pipe, a first thread is formed on the radial periphery of the first pipe, so that the first pipe is connected to a fluid device, and one axial end of the first pipe is the first end , the radial outer circumference of the first pipe member forms a first driven part, and the first driven part is located between the first thread and the first end; a second pipe member is mainly composed of a pivot section and a sleeve section along the A tubular structure formed by axially integral connection. The pivot section is rotatably disposed inside the first pipe member so that the first pipe member communicates with the second pipe member. The first pipe member has A second pipe wall surrounds the pivot section, and the pivot section is surrounded by an anti-leakage ring. The anti-leakage ring elastically abuts the second pipe wall, thereby forming a gap between the pivot section and the first pipe. In a watertight state, the socket section has a second end opposite to the first end, and a second thread is formed inside the socket section so that the second pipe fitting is connected to a fluid pipe, and the first pipe fitting is combined with the second The pipe fitting connects and communicates the fluid device and the fluid pipe, and the radial outer periphery of the sleeve section forms a second driven part; and a tubular sliding sleeve sleeves the sleeve section axially slidingly, and the sliding sleeve extends along the As the sleeve section moves reciprocally between a first position and a second position in the axial direction, the sliding sleeve cooperates with the first driven part and the second driven part to form a latch part, and the latch part is connected with the The second driven part forms a cooperative relationship along the radial direction of the sleeve section, so that the driving part and the first driven part are opposite to each other along the radial direction of the sliding sleeve, thereby driving the first pipe member to rotate. The pipeline connection structure as claimed in claim 1, wherein the first driven part is a strip structure that radially protrudes from the first pipe member. The pipeline connection structure as claimed in claim 1, wherein the second driven part is a strip structure that radially protrudes from the socket section. The pipeline connection structure as described in claim 2 or 3, wherein the sliding sleeve has a first pipe wall surrounding the sleeve section, and the first pipe wall is recessed to form the long groove-shaped detent part. The first driven portion extends along the axial direction of the sliding sleeve to one end of the sliding sleeve facing the first pipe member, and the first driven portion is embedded in the braking portion. The pipeline connection structure as claimed in claim 1, wherein the first pipe member and the second pipe member respectively restrict the reciprocating movement of the sliding sleeve between the first position and the second position. The pipeline connection structure as claimed in claim 1 or 5, wherein a first protruding portion is protruding from the radial periphery of the first pipe member, and a second protruding portion is protruding from the radial periphery of the sleeve section. The convex portion and the second convex portion are arranged at intervals along the axial direction of the second pipe member, and a third convex portion is formed in the tubular interior of the sliding sleeve; when the sliding sleeve is in the first position, the second convex portion is located in the first position. Between the first convex part and the third convex part, the second convex part restricts the slide sleeve from sliding in the direction of the first pipe. The driving part and the second driven part are along the sliding sleeve. Radially opposite, the sliding sleeve drives the second pipe to rotate, and the first pipe and the second pipe are relatively rotated; when the sliding sleeve is in the second position, the third protrusion is in the first position. Between the convex part and the second convex part, the first convex part restricts the slide sleeve from sliding in the direction of the first pipe member. The latch part, the first driven part and the second driven part move along the The sliding sleeve is radially opposite, so that the sliding sleeve drives the first pipe member and the second pipe member to rotate. The pipeline connection structure of claim 6, wherein the first protrusion is an annular structure surrounding the first pipe member, and the second protrusion extends along the circumferential direction of the sleeve section. The pipeline connection structure of claim 1, wherein a stop ring is radially expanded around the outer periphery of the sleeve section, and the stop ring forms a stop for one end of the sliding sleeve away from the first pipe member. The pipeline connection structure of claim 1, wherein the first pipe member has a second pipe wall surrounding the pivot section, and a plurality of limiting portions are protruding from the inner wall of the second pipe wall, and each of the limiting portions circulates arranged at intervals in the circumferential direction of the second pipe wall, a convex ring is radially expanded on the outside of the pivot section, the limiting portion is located between the convex ring and the socket section, and the convex ring abuts each of the limiting portions, Accordingly, the first pipe member and the second pipe member are axially positioned.

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