Joint assembly
By using the clamping jaws and the inclined surface of the tapered section for compression and threaded connection, the problem of slow assembly and disassembly of pipe fittings is solved, achieving fast and stable pipe connection and improving assembly efficiency and reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING LINGMEI STRONG TECH CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-05-12
AI Technical Summary
Existing pipe fittings are slow to assemble and disassemble, and are inconvenient to install, especially in space-constrained locations, which affects the efficiency of equipment maintenance and pipe renovation.
It adopts a structure that combines jaws and a tapered section, and achieves clamping through inclined extrusion. Combined with threaded connection, it achieves geometric self-locking and mechanical locking, simplifying the quick connection of pipelines and fittings.
It achieves rapid and stable pipeline connections, reduces installation difficulty and time, and improves vibration and axial impact resistance, thereby enhancing the reliability of the assembly process.
Smart Images
Figure CN224229469U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of pipeline assembly technology, and more specifically, to a connector assembly. Background Technology
[0002] When connecting existing pneumatic and hydraulic pipelines, pipeline connectors are required. However, existing connectors use traditional threaded or flanged connections, requiring operators to use special tools to rotate and tighten them multiple times. Each disassembly and assembly operation often takes a long time. Not only is the disassembly and assembly speed slow, but the complex installation method also makes it difficult to operate in space-constrained installation locations, reducing the reliability of the assembly process and severely restricting the efficiency of equipment maintenance and pipeline modification. Utility Model Content
[0003] The purpose of this disclosure is to provide a connector assembly to solve the problems of slow disassembly and assembly speed and inconvenient assembly of existing pipe connectors.
[0004] To achieve the above objectives, this disclosure provides a connector assembly, comprising:
[0005] The first connector has a first through hole for the pipeline to pass through, and one end of the first connector has a plurality of circumferentially spaced slots to form a plurality of claws.
[0006] Pipeline retaining elements, used to extend at least partially into the pipeline; and
[0007] The second connector has a second through hole inside that engages with the first connector.
[0008] The pipeline limiting member is disposed in the second through hole, which includes a tapered section, such that when the chuck extends from the large-diameter end of the tapered section, the wall surface of the tapered section can press against the chuck, so that the chuck provides a force to press the pipeline against the pipeline limiting member.
[0009] Optionally, the inclination angle of the tapered segment is not less than 10°.
[0010] Optionally, the inner wall of the claw has an inwardly protruding protrusion, and the thickness of the inner wall of the claw gradually decreases from the protrusion toward the end of the claw.
[0011] Optionally, the opening slots are arranged at equal intervals on the first connector.
[0012] Optionally, the number of opening slots is at least three.
[0013] Optionally, a first stepped surface is formed at the small-diameter end of the tapered segment to axially restrict the chuck.
[0014] Optionally, the second through hole includes a threaded section connected to the large-diameter end of the tapered section, and the first connector includes a handle and a connecting section connected thereto, wherein the outer wall of the connecting section is formed with a thread that mates with the threaded section.
[0015] Optionally, the handle has multiple anti-slip grooves on its circumferential ring.
[0016] Optionally, the second through hole further includes a limiting member placement section that can cooperate with the pipeline limiting member. The limiting member placement section is connected to the small-diameter end of the tapered section. The end of the limiting member placement section away from the tapered section forms a second stepped surface that can abut against the pipeline limiting member, for axially limiting the pipeline limiting member.
[0017] Optionally, the pipeline limiting member includes a radially protruding boss for abutting against the axial end of the pipeline.
[0018] The limiting member placement section has a third stepped surface that mates with the boss, used to limit the boss in the axial direction.
[0019] By using the above technical solution, a structure is set up to engage the jaws and the tapered section. During installation, the jaws are simply inserted into the tapered section, and clamping is achieved through the inclined surface compression, thus realizing geometric self-locking. This allows for a quick connection between the pipeline and the connector assembly, ensuring the stability of the pipeline connection while effectively reducing installation difficulty and time.
[0020] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description
[0021] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:
[0022] Figure 1 This is a schematic diagram of a connector assembly according to one embodiment of the present disclosure.
[0023] Figure 2 This is a schematic diagram of the first connector in a connector assembly according to one embodiment of the present disclosure.
[0024] Figure 3 This is a schematic diagram of the second connector in a connector assembly according to one embodiment of the present disclosure.
[0025] Figure 4 yes Figure 3 An enlarged view of part A based on the basic structure.
[0026] Figure 5 This is a schematic diagram of a pipe limiting member in a connector assembly according to one embodiment of the present disclosure.
[0027] Explanation of reference numerals in the attached figures
[0028] 1-First connector; 10-First through hole; 11-Opening groove; 12-Claw; 121-Protrusion; 13-Handle; 131-Anti-slip groove; 14-Connecting section; 2-Pipeline limiting component; 21-Boss; 3-Second connector; 30-Second through hole; 31-Conical section; 311-First stepped surface; 32-Threaded section; 33-Limiting component placement section; 331-Second stepped surface; 332-Third stepped surface; 4-Pipeline. Detailed Implementation
[0029] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.
[0030] In this disclosure, unless otherwise stated, directional terms such as "inner" and "outer" are defined in relation to the outline of the corresponding components. The terms "first," "second," etc., are used to distinguish different components and are not sequential or significant. Furthermore, in the following description, when referring to the accompanying drawings, unless otherwise explained, the same reference numerals in different drawings denote the same or similar elements.
[0031] According to one embodiment of this disclosure, such as Figures 1 to 5 As shown, a connector assembly is provided, including a first connector 1, a pipe limiting member 2, and a second connector 3. The first connector 1 has a first through hole 10 formed inside for a pipe 4 to pass through. One end of the first connector 1 has a plurality of circumferentially spaced openings 11 to form a plurality of clamping claws 12. The pipe limiting member 2 is used to at least partially extend into the pipe 4. The second connector 3 has a second through hole 30 formed inside to engage with the first connector 1. The pipe limiting member 2 can be disposed in the second through hole 30, which includes a tapered section 31 such that when the clamping claws 12 extend from the large-diameter end of the tapered section 31, the wall surface of the tapered section 31 can press against the clamping claws 12, causing the clamping claws 12 to provide a force that presses the pipe 4 against the pipe limiting member 2.
[0032] By using the above technical solution, a structure is set up in which the claw 12 and the conical section 31 cooperate. During installation, the claw 12 only needs to be inserted into the conical section 31 to achieve clamping through the inclined surface extrusion, thereby achieving geometric self-locking and completing the quick connection between the pipeline 4 and the connector assembly. While ensuring the stability of the pipeline 4 connection, the installation difficulty and installation time can be effectively reduced.
[0033] It should be noted that, as Figure 2As shown, the opening slots 11 can be evenly spaced on the first connector 1. This ensures that the clamping claws 12 are subjected to uniform force, avoiding stress concentration on one side, and simultaneously ensuring consistent pressure throughout the four circumferences of the pipeline, preventing eccentric seal leakage. The number of opening slots 11 can be set to at least three, four, or three as required; this disclosure does not limit this. When the number of opening slots 11 is three, the number of clamping claws 12 is also three, which can balance the clamping force and structural strength, ensuring sufficient flexibility while avoiding the processing complexity caused by multiple claws.
[0034] Furthermore, the inclination angle of the tapered section 31 (the angle between the inclination of the tapered section 31 and the extension direction of the first connector 1) affects the self-locking effect of the connector assembly. If the inclination angle is too small, the clamping force of the chuck 12 will be insufficient; if it is too large, it will increase the difficulty of operation. The inclination angle of the tapered section 31 is not less than 10°. This angle range can optimize the balance between the self-locking property of the inclination and the insertion force. The inclination angle value can be 10° or 11°, or it can be 10.4° or 10.6°. This disclosure does not limit this value. The inclination angle is smaller than the friction angle of the tapered section 31, effectively utilizing friction and geometric self-locking to achieve fixation and prevent loosening due to reverse rotation.
[0035] Furthermore, such as Figures 1 to 3 As shown, the second through hole 30 includes a threaded section 32 that connects to the large-diameter end of the tapered section 31. The first connector 1 includes a handle 13 and a connecting section 14 connected together. A thread is formed on the outer wall of the connecting section 14 that mates with the threaded section 32. The threaded engagement not only provides mechanical locking force but also allows the first connector 1 to be assembled and disassembled with a single rotation, without the need for tools. Furthermore, the self-locking characteristic of the thread can resist reverse rotation caused by vibration, forming a dual fixing mechanism with the elastic clamping of the jaws 12. This increases the firmness of the pipeline fixation, enhances the connector assembly's resistance to vibration and axial impact, and reduces the possibility of loosening. Here, the handle 13, connecting section 14, and jaws 12 can be formed as a three-stage stepped structure, i.e., the outer diameter of the handle 13 is larger than the outer diameter of the connecting section 14, and the outer diameter of the connecting section 14 is larger than the outer diameter of the jaws 12. This disclosure does not limit this configuration.
[0036] The depth to which the jaw 12 extends into the tapered section 31 can be precisely controlled by rotating the handle 13, thus flexibly adjusting the clamping force to adapt to the needs of different materials, pipe diameters, or shaft diameters. During installation, first insert the pipe limiting component 2 into the second through hole 30, then fix the pipe 4 onto the pipe limiting component 2. Next, rotate the handle 13 to continuously screw the connecting section 14 into the threaded section 32, allowing the jaw 12 of the first connector 1 to simultaneously extend into the tapered section 31 of the second connector 3. This allows the jaw 12 to be radially compressed by the inclined surface of the tapered section 31, pressing the pipe 4 tightly between the jaw 12 and the pipe limiting component 2. During disassembly, simply rotate the handle 13 in the opposite direction to unscrew the connecting section 14 from the threaded section 32. The jaw 12 will then disengage from the tapered section 31 and can be pulled axially for separation.
[0037] In addition, multiple anti-slip grooves 131 can be provided around the handle 13 to increase the friction when turning the handle 13 and facilitate operation.
[0038] Furthermore, such as Figure 1 and Figure 2 As shown, the inner wall of the claw 12 can be formed with an inwardly protruding protrusion 121, and the thickness of the inner wall of the claw 12 gradually decreases from the protrusion 121 to the end of the claw 12. The diameter of the protrusion 121 is smaller than the diameter of other parts in the first through hole 10, so that the claw 12 can preferentially contact the pipe 4 when it contacts the inclined surface. As the claw 12 gradually extends into the tapered section 31, the contact pressure between the claw 12 and the pipe 4 can be increased to prevent the pipe 4 from slipping. The gradually changing thickness design of the claw 12 allows its root (the end near the handle 13) to withstand greater bending stress, while the tip remains elastic, avoiding the risk of breakage caused by stress concentration.
[0039] According to one embodiment of this disclosure, such as Figure 1 and Figure 4 As shown, a first stepped surface 311 is formed at the small-diameter end of the tapered segment 31 to axially limit the chuck 12. The first stepped surface 311 can limit the chuck 12 and prevent the chuck 12 from being over-inserted.
[0040] According to one embodiment of this disclosure, such as Figures 1 to 4 As shown, the second through hole 30 also includes a limiting member placement section 33 that can cooperate with the pipeline limiting member 2. The limiting member placement section 33 is connected to the small-diameter end of the tapered section 31. The limiting member placement section 33 can limit the axial position of the pipeline limiting member 2, prevent it from shifting due to fluid impact, and maintain stable contact with the pipeline 4. The end of the limiting member placement section 33 away from the tapered section 31 forms a second stepped surface 331 that can abut against the pipeline limiting member 2. The second stepped surface 331 can fit against the end face of the pipeline limiting member 2 to limit the pipeline limiting member 2 axially, prevent it from excessive displacement, and further optimize the installation stability of the pipeline limiting member 2.
[0041] Furthermore, such as Figures 3 to 5 As shown, the pipeline limiting member 2 may include a radially protruding boss 21, which is used to abut against the axial end of the pipeline 4 to limit the pipeline 4 and improve the firmness of the pipeline 4. The limiting member placement section 33 is formed with a third stepped surface 332 that mates with the boss 21, which can limit the boss 21 in the axial direction. In conjunction with the second stepped surface 331, the pipeline limiting member 2 can be more firmly limited.
[0042] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.
[0043] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.
[0044] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.
Claims
1. A connector assembly, characterized in that, include: The first connector has a first through hole for the pipeline to pass through, and one end of the first connector has a plurality of circumferentially spaced slots to form a plurality of claws. Pipeline limiting components are used to extend at least partially into the pipeline; and The second connector has a second through hole inside that engages with the first connector. The pipeline limiting member is disposed in the second through hole, which includes a tapered section, such that when the chuck extends from the large-diameter end of the tapered section, the wall surface of the tapered section can press against the chuck, so that the chuck provides a force to press the pipeline against the pipeline limiting member.
2. The connector assembly according to claim 1, characterized in that, The inclination angle of the tapered section is not less than 10°.
3. The connector assembly according to claim 1, characterized in that, The inner wall of the claw has an inwardly protruding protrusion, and the thickness of the inner wall of the claw gradually decreases from the protrusion toward the end of the claw.
4. The connector assembly according to claim 1, characterized in that, The opening slots are arranged at equal intervals on the first connector.
5. The connector assembly according to claim 1, characterized in that, The number of openings is at least three.
6. The connector assembly according to claim 1, characterized in that, The tapered section has a first stepped surface at its small-diameter end, which is used to axially restrict the chuck.
7. The connector assembly according to claim 1, characterized in that, The second through hole includes a threaded section that connects to the large-diameter end of the tapered section. The first connector includes a handle and a connecting section connected together, and the outer wall of the connecting section is formed with a thread that mates with the threaded section.
8. The connector assembly according to claim 7, characterized in that, The handle has multiple anti-slip grooves on its circumferential ring.
9. The connector assembly according to claim 1, characterized in that, The second through hole also includes a limiting member placement section that can cooperate with the pipeline limiting member. The limiting member placement section is connected to the small diameter end of the tapered section. The end of the limiting member placement section away from the tapered section forms a second stepped surface that can abut against the pipeline limiting member, for axially limiting the pipeline limiting member.
10. The connector assembly according to claim 9, characterized in that, The pipeline limiting component includes a radially protruding boss for abutting against the axial end of the pipeline. The limiting member placement section has a third stepped surface that mates with the boss, used to limit the boss in the axial direction.