Elbow pipe fitting
By setting up a loose ring and ratchet structure at the pipe interface of the bent pipe fittings, the lock sleeve is prevented from loosening, which solves the problem of the bent pipe fittings loose after long-term use, extends the service life of the pipe and simplifies the disassembly process .
Patent Information
- Application Number
- CN202421223524.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-05-30
AI Technical Summary
After using existing bent pipe fittings for a long time or being subjected to external forces, the locking sleeve is prone to loosening, resulting in water leakage or pipe falling off.
A bending pipe fitting is designed, using an anti-loosening ring and a locking sleeve at the pipe interface. A multiple anti-loosening reeds are provided on the anti-loosening ring to cooperate with the ratchet teeth. An internal thread structure is provided in the locking sleeve. The inclination direction of the teeth is opposite to the thread direction of the internal thread, which prevents the locking sleeve from loosening, and provides a circumference on the anti-loosening ring for easy unlocking.
Effectively prevent the locking sleeve from loosening, extend the service life of the pipeline, and simplify the disassembly process of the pipeline.
Smart Images
Figure CN222363577U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipe connectors, in particular to a bent-through pipe fitting. Background Art
[0002] Elbows are usually set at the turning point of the pipeline to change the direction of the pipeline. The bending angle of the elbow is fixed. Commonly used ones are 90-degree elbows, which can change the pipeline from the X-axis direction to the Y-axis direction. At present, common elbows use threaded quick-connects at both ends to quickly connect pipelines and equipment interfaces. That is, a locking sleeve is provided at the end of the elbow, and the locking sleeve has an internal thread structure. The pipeline and equipment interface have external threads, which can be inserted into the end of the elbow and then tightened to complete the fixation. However, after long-term use or when the locking sleeve is subjected to external force, the locking sleeve is easy to loosen, resulting in water leakage. In severe cases, it may cause the pipeline to fall off, affecting the normal use of the pipeline. Utility Model Content
[0003] In order to solve the above problems, the utility model provides a bent-through pipe fitting, which can effectively prevent the threaded joint from loosening and extend the service life of the pipe fitting.
[0004] To this end, the technical solution of the utility model is: a bent-through pipe fitting, comprising a tubular body, the tubular body comprising a straight section and a bent section, and pipe interfaces are provided at both ends of the tubular body; a protruding first annular boss is provided at the pipe interface, an anti-loosening ring is sleeved on the outer side of the pipe interface, and a plurality of anti-loosening springs are provided on the anti-loosening ring; a locking sleeve is sleeved on the pipe interface, an annular clamping edge is provided on the upper end of the locking sleeve for cooperating with the first annular boss, and a ratchet is provided on the inner ring of the annular clamping edge, the anti-loosening ring is placed on the inner side of the annular clamping edge, and the anti-loosening springs cooperate with the ratchet.
[0005] On the basis of the above scheme and as a preferred scheme of the above scheme: a plurality of slide grooves are provided on the pipe interface, and a convex point is provided on the inner side of the anti-loosening ring, which cooperates with the slide groove, and the anti-loosening ring can move up and down relative to the pipe interface, that is, the anti-loosening spring can leave or enter the ratchet.
[0006] On the basis of the above scheme and as a preferred scheme of the above scheme: the anti-loosening ring is interference fit with the pipe interface, and a circle of protruding surrounding edges is provided on the upper end of the anti-loosening ring, and the surrounding edges are higher than the annular clamping edge on the locking sleeve.
[0007] On the basis of the above solution and as a preferred solution of the above solution: an internal thread structure is provided inside the locking sleeve, and the inclination direction of the ratchet is opposite to the thread direction of the internal thread.
[0008] On the basis of the above scheme and as a preferred scheme of the above scheme: the bending section on the tubular body is 90 degrees and is integrally formed with the straight section.
[0009] When in use, insert the device interface or pipe into the pipe interface, push the anti-loosening ring to the lowest position, so that the anti-loosening spring piece abuts against the ratchet inside the locking sleeve, and then rotate the locking sleeve so that it can rotate in the spiral direction of the internal thread and screw with the external thread on the device interface or pipe. During the rotation process, the ratchet rotates along the anti-loosening spring piece until the locking sleeve and the device interface are locked and fixed. At this time, the anti-loosening spring piece abuts against the ratchet teeth, so that the locking sleeve can only rotate in the locking direction, which effectively prevents loosening.
[0010] When the pipeline needs to be disassembled, move the surrounding edge on the upper end of the anti-loosening ring and pull the anti-loosening ring upwards, so that the anti-loosening spring leaves the ratchet, realizing the unlocking function of the ratchet, and the locking sleeve can be rotated in the opposite direction to loosen the pipeline connection.
[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: an anti-loosening spring and a ratchet that cooperate with each other are arranged between the locking sleeve and the pipe interface, and the anti-loosening spring rests on the ratchet, so that the locking sleeve can only perform a one-way locking and rotating operation, thereby effectively preventing the locking sleeve from loosening and extending the service life of the pipeline; a convex point is arranged in the anti-loosening ring, and the convex point cooperates with the sliding groove on the pipe interface to prevent the anti-loosening ring from rotating; at the same time, a surrounding edge is arranged at the upper end of the anti-loosening ring, and the anti-loosening spring can be pulled out of the ratchet to unlock the locking sleeve, thereby facilitating the disassembly of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the structure of the utility model;
[0013] Figure 2 This is a structural cross-sectional view of the utility model in a locked state of the pipe interface;
[0014] Figure 3 for Figure 2 A partial enlarged view of
[0015] Figure 4 This is a structural cross-sectional view of the pipe interface of the utility model in an unlocked state;
[0016] Figure 5 for Figure 4 A partial enlarged view of
[0017] Figure 6 This is a schematic diagram of the cooperation between the anti-loosening spring and the ratchet of the utility model;
[0018] Figure 7 It is a structural schematic diagram of the anti-loosening ring of the utility model.
[0019] Marked in the figure are: tubular body 1, straight section 11, bent section 12, pipe interface 13, first annular boss 14, slide groove 15, anti-loosening ring 2, anti-loosening spring 21, surrounding edge 22, protrusion 23, locking sleeve 3, annular clamping edge 31, ratchet 32. DETAILED DESCRIPTION
[0020] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present invention.
[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" and "a number" is two or more, unless otherwise clearly and specifically defined.
[0022] See the accompanying drawings. The elbow pipe fitting of this embodiment comprises a tubular body 1 , wherein the tubular body 1 comprises a straight section 11 and a bent section 12 , wherein the bent section 12 on the tubular body is 90 degrees and is integrally formed with the straight section 11 .
[0023] Both ends of the tubular body 1 are provided with a pipe interface 13, and a protruding first annular boss 14 is provided at the pipe interface 13. An anti-loosening ring 2 is sleeved on the outside of the pipe interface 13, and a plurality of anti-loosening springs 21 are provided on the anti-loosening ring 2; the anti-loosening ring 2 is a metal clamping ring structure, which can be interference-fitted with the pipe interface 13. At the same time, an axial sliding groove 15 can also be provided on the outside of the pipe interface 13, and a convex point 23 cooperating with the sliding groove 15 is provided in the anti-loosening ring 2 to prevent relative sliding between the anti-loosening ring 2 and the pipe interface. A circle of protruding surrounding edge 22 is provided at the upper end of the anti-loosening ring 2. By turning the surrounding edge 22, the anti-loosening ring 2 can be driven to move up and down relative to the pipe interface 13, that is, the anti-loosening spring 21 can leave or enter the ratchet.
[0024] The pipe interface 13 is provided with a locking sleeve 3, the upper end of the locking sleeve 3 is provided with an annular clamping edge 31 cooperating with the first annular boss 14, and the inner ring of the annular clamping edge 31 is provided with a ratchet 32, the anti-loosening ring 2 is placed inside the annular clamping edge 31, and the anti-loosening spring 21 cooperates with the ratchet 32. The locking sleeve 3 is provided with an internal thread structure, and the inclination direction of the ratchet 32 is opposite to the thread direction of the internal thread, that is, the ratchet is arranged in the counterclockwise direction, when the locking sleeve is locked and rotated clockwise, the anti-loosening spring will move to the next ratchet along the inclined long side of the ratchet; when the locking sleeve is loosened counterclockwise, the anti-loosening spring will abut against the short side of the ratchet to prevent the ratchet from rotating, thereby playing an anti-loosening role.
[0025] When in use, insert the device interface or pipeline into the pipe interface, push the anti-loosening ring 2 to the lowest position, so that the anti-loosening spring 21 abuts against the ratchet 32 on the inner side of the locking sleeve 3, and then rotate the locking sleeve 3 so that it can rotate in the spiral direction of the internal thread and screw with the external thread on the device interface or pipeline. During the rotation process, the ratchet 32 rotates along the anti-loosening spring 21 until the locking sleeve and the device interface are locked and fixed. At this time, the anti-loosening spring 21 abuts against the ratchet 32, so that the locking sleeve 3 can only rotate in the locking direction, which effectively prevents loosening.
[0026] When the pipeline needs to be disassembled, the surrounding edge 22 at the upper end of the anti-loosening ring 2 is moved, and the anti-loosening ring 2 is pulled out upward, so that the anti-loosening spring 21 leaves the ratchet 32, realizing the unlocking function of the ratchet 32, and the locking sleeve 3 can be rotated in the opposite direction to loosen the pipeline connection.
[0027] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.
Claims
1. A bent pipe fitting, comprising a tubular body, the tubular body comprising a straight section and a bent section, and both ends of the tubular body are provided with pipe interfaces; characterized in that: The pipe interface is provided with a protruding first annular boss, and an anti-loosening ring is sleeved on the outer side of the pipe interface, and a plurality of anti-loosening springs are arranged on the anti-loosening ring; the pipe interface is provided with a locking sleeve, and an annular clamping edge is arranged on the upper end of the locking sleeve to cooperate with the first annular boss, and a ratchet is arranged on the inner ring of the annular clamping edge, and the anti-loosening ring is placed on the inner side of the annular clamping edge, and the anti-loosening springs cooperate with the ratchet.
2. The elbow pipe fitting according to claim 1, characterized in that: The pipe interface is provided with multiple slide grooves, and the inner side of the anti-loosening ring is provided with convex points, which cooperate with the slide grooves. The anti-loosening ring can move up and down relative to the pipe interface, that is, the anti-loosening spring can leave or enter the ratchet.
3. The elbow pipe fitting according to claim 1, characterized in that: The anti-loosening ring is interference fit with the pipe interface, and the upper end of the anti-loosening ring is provided with a circle of protruding surrounding edges, which are higher than the annular clamping edge on the locking sleeve.
4. The elbow pipe fitting according to claim 1, characterized in that: An internal thread structure is arranged inside the locking sleeve, and the inclination direction of the ratchet teeth is opposite to the thread direction of the internal thread.
5. The elbow pipe fitting according to claim 1, characterized in that: The bending section on the tubular body is 90 degrees and is integrally formed with the straight section.