Joint connecting structure

Abstract

The utility model belongs to the technical field of pipeline connection, and discloses a connector connecting structure. The connector connecting structure comprises a first connector, a second connector and a limiting assembly, at least part of the first connector is inserted into the second connector, the limiting assembly comprises a plug pin and a limiting piece used for preventing the plug pin from falling off, and the plug pin penetrates through the second connector in the radial direction of the second connector and limits the first connector in the axial direction of the second connector. The first end of the bolt is provided with the limiting cap, the limiting piece is detachably connected with the second end of the bolt, the limiting piece and the limiting cap limit the two ends of the bolt respectively, the situation that the bolt falls off due to vibration or external force is avoided, and therefore the connection reliability of the first connector and the second connector is guaranteed. And moreover, the limiting piece and the bolt are designed to be detachable, so that the bolt can be quickly assembled and disassembled, complex tools are not needed, and the assembling time and the labor cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection, in particular to a joint connection structure. Background Art

[0002] Joint connection structures are widely used in pipelines, mechanical equipment and electronic equipment to achieve reliable connection between two components and easy assembly and disassembly.

[0003] The traditional connection method usually involves plugging two connectors together and then inserting a pin along the radial direction of the plug to fix the two connectors. The pin can easily fall off under pipeline vibration or external force, causing the connection to fail and causing leakage of the medium inside the pipeline. The reliability of the connection structure is poor.

[0004] Therefore, there is an urgent need for a connector-connector to solve the problems in the prior art. Utility Model Content

[0005] The purpose of the utility model is to provide a joint connection structure, which can prevent the pin from falling off due to vibration or external force, thereby ensuring the reliability of the connection between the first joint and the second joint.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] The joint connection structure includes:

[0008] a first connector and a second connector, wherein at least a portion of the first connector is plugged into the second connector;

[0009] A limiting assembly includes a pin and a limiting member for preventing the pin from falling off. The pin penetrates the second joint in the radial direction of the second joint and limits the first joint in the axial direction of the second joint. A limiting cap is provided at the first end of the pin, and the limiting member is detachably connected to the second end of the pin.

[0010] Optionally, the limiting member includes a nut, the second end of the pin is provided with an external thread, and the nut is threadedly connected to the second end of the pin via the external thread.

[0011] Optionally, a through hole is provided at the second end of the latch, the through hole passing through the latch in a radial direction of the latch, the limiting member comprises a key ring, and at least a portion of the key ring is passed through the through hole;

[0012] Alternatively, the limiting member includes a cotter pin, and at least a portion of the cotter pin is passed through the through hole.

[0013] Optionally, the first connector includes a plug-in portion, and a limiting groove is provided on the plug-in portion;

[0014] The second joint includes an assembly cavity, a cavity wall of the assembly cavity is provided with a through hole extending radially along the assembly cavity, and the through hole is communicated with the assembly cavity;

[0015] The plug-in portion is inserted into the assembly cavity, the plug is passed through the penetration hole, and at least a portion of the plug is limited to the limiting groove.

[0016] Optionally, a boss is provided on the outer wall of the assembly cavity, and the through hole passes through the boss.

[0017] Optionally, a first table surface and a second table surface are respectively provided at both ends of the boss, and the limiting assembly further includes a first sealing gasket and a second sealing gasket, the first sealing gasket is pressed between the limiting cap and the first table surface, and the second sealing gasket is pressed between the second table surface and the nut.

[0018] Optionally, the limiting groove is an annular limiting groove.

[0019] Optionally, a first sealing groove and a second sealing groove are provided on the plug-in part. Along the plug-in direction of the plug-in part, the first sealing groove is located in front of the limiting groove, and the second sealing groove is located behind the limiting groove. A first sealing member is embedded in the first sealing groove, and a second sealing member is embedded in the second sealing groove.

[0020] Optionally, along the axial direction of the plug-in portion, the width of the first sealing member is greater than the width of the second sealing member.

[0021] Optionally, the first sealing groove is a first annular sealing groove, the first sealing member is a first sealing ring, and the first sealing ring is embedded in the first annular sealing groove;

[0022] The second sealing groove is a second annular sealing groove, the second sealing member is a second sealing ring, and the second sealing ring is embedded in the second annular sealing groove.

[0023] Beneficial effects:

[0024] The joint connection structure provided by the present invention includes a first joint, a second joint and a limiting assembly, at least a portion of the first joint is inserted into the second joint, the limiting assembly includes a pin and a limiting member, the pin passes through the second joint along the radial direction of the second joint, and limits the first joint in the axial direction of the second joint, the first end of the pin is provided with a limiting cap, the limiting member and the second end of the pin are detachably connected, the limiting member and the limiting cap respectively limit the two ends of the pin to prevent the pin from falling off due to vibration or external force, thereby ensuring the reliability of the connection between the first joint and the second joint; and the detachable design of the limiting member and the pin facilitates the rapid assembly and disassembly of the pin, without the need for complex tools, reducing assembly time and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the connector connection structure provided in the first embodiment of the present invention from a first viewing angle;

[0026] Figure 2 This is an exploded view of the joint connection structure provided in the first embodiment of the present invention from a first viewing angle;

[0027] Figure 3 This is a schematic diagram of the joint connection structure provided by the first embodiment of the present invention at a second viewing angle;

[0028] Figure 4 yes Figure 3 Cross-sectional view at AA in the middle;

[0029] Figure 5 This is an exploded view of the joint connection structure provided in the first embodiment of the present invention at a second viewing angle;

[0030] Figure 6 This is a schematic diagram of the joint connection structure provided in the second embodiment of the present invention;

[0031] Figure 7 This is a schematic diagram of the joint connection structure provided in Example 3 of the present utility model.

[0032] In the picture:

[0033] 100, first joint; 110, plug-in portion; 111, limiting groove; 112, first sealing groove; 113, second sealing groove; 114, first sealing member; 115, second sealing member;

[0034] 200, second joint; 210, assembly cavity; 220, boss; 221, through hole;

[0035] 300, limit assembly; 310, latch; 311, limit cap; 312, through hole; 321, nut; 322, key ring; 323, cotter pin; 330, first sealing gasket. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0037] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0038] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0039] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0040] Example 1

[0041] This embodiment provides a joint connection structure, such as Figure 1-Figure 5As shown, the connector connection structure includes a first connector 100, a second connector 200 and a limiting assembly 300. At least part of the first connector 100 is inserted into the second connector 200. The limiting assembly 300 includes a latch 310 and a limiting member for preventing the latch 310 from falling off. The latch 310 passes through the second connector 200 in the radial direction of the second connector 200 and limits the first connector 100 in the axial direction of the second connector 200, thereby preventing the first connector 100 from detaching from the second connector 200 in the axial direction of the second connector 200. 00, a limiting cap 311 is provided at the first end of the latch 310, and the limiting member is detachably connected to the second end of the latch 310. The limiting member and the limiting cap 311 respectively limit the two ends of the latch 310 to prevent the latch 310 from falling off due to vibration or external force, thereby ensuring the reliability of the connection between the first connector 100 and the second connector 200; and the detachable design of the limiting member and the latch 310 facilitates the rapid assembly and disassembly of the latch 310 without the use of complex tools, thereby reducing assembly time and labor costs.

[0042] Alternatively, as Figure 1-Figure 2 As shown, the retaining member includes a nut 321. The second end of the latch 310 is provided with external threads, and the nut 321 is threadedly connected to the second end of the latch 310 via the external threads. The threaded connection between the nut 321 and the latch 310 forms a secure mechanical lock, effectively preventing the nut 321 from loosening even in vibration, impact, or high-pressure environments, ensuring a tight connection between the joints.

[0043] Alternatively, as Figure 2-Figure 5 As shown, the first connector 100 includes a plug-in portion 110, which is provided with a limiting groove 111; the second connector 200 includes an assembly cavity 210, and the cavity wall of the assembly cavity 210 is provided with a through hole 221 extending radially along the assembly cavity 210, and the through hole 221 is connected to the assembly cavity 210; the plug-in portion 110 is inserted into the assembly cavity 210, and the pin 310 is passed through the through hole 221, and at least part of the pin 310 is limited to the limiting groove 111, so that the first connector 100 is constrained in the axial direction, so that the first connector 100 and the second connector 200 remain in a connected state when subjected to high-frequency vibration or impact.

[0044] Alternatively, as Figure 2 and Figure 5 As shown, a boss 220 is provided on the outer wall of the assembly cavity 210, and a hole 221 is provided through the boss 220. The boss 220 effectively disperses the load at the latch 310 and reduces local stress concentration. In addition, the setting of the boss 220 provides an installation platform for the latch 310, ensuring that the limit cap 311 and the nut 321 are respectively abutted against the two ends of the limit platform, thereby improving the stability of the latch 310.

[0045] Optionally, a first surface and a second surface are provided at each end of the boss 220, respectively. The position-limiting assembly 300 further includes a first sealing gasket 330 and a second sealing gasket. The first sealing gasket 330 is compressed between the position-limiting cap 311 and the first surface, and the second sealing gasket is compressed between the second surface and the nut 321. These gaskets can seal both ends of the through-hole 221, preventing pipeline leakage and improving pipeline sealing. In this embodiment, the first sealing gasket 330 and the second sealing gasket are both rectangular sealing rings.

[0046] Optionally, the limiting groove 111 is an annular limiting groove, so that the insertion position of the first connector 100 is not restricted and does not require specific direction alignment, which greatly simplifies the installation process and improves installation efficiency.

[0047] Optionally, a first sealing groove 112 and a second sealing groove 113 are provided on the plug-in part 110. Along the plug-in direction of the plug-in part 110, the first sealing groove 112 is located in front of the limiting groove 111, and the second sealing groove 113 is located behind the limiting groove 111. A first sealing member 114 is embedded in the first sealing groove 112, and a second sealing member 115 is embedded in the second sealing groove 113, thereby realizing a double sealing structure in the plug-in part 110 and improving the sealing performance of the connection between the first joint 100 and the second joint 200.

[0048] Optionally, along the axial direction of the plug-in portion 110, the width of the first seal 114 is greater than the width of the second seal 115. The first seal 114 provides a sufficient contact surface when the first joint 100 and the second joint 200 are plugged in, thereby improving the sealing effect and effectively preventing leakage of the medium inside the pipeline; the second seal 115 effectively prevents dust from entering, reduces wear and pollution to the first seal 114, and thus extends the service life of the entire joint connection structure.

[0049] Optionally, the first sealing groove 112 is a first annular sealing groove, the first sealing member 114 is a first sealing ring, and the first sealing ring is embedded in the first annular sealing groove; the second sealing groove 113 is a second annular sealing groove, the second sealing member 115 is a second sealing ring, and the second sealing ring is embedded in the second annular sealing groove, thereby providing sealing and dustproof effects in the circumferential direction of the plug-in, further improving the sealing and reliability of the joint connection.

[0050] Example 2

[0051] like Figure 6As shown, this embodiment provides a connector connection structure, which is basically the same as the first embodiment, and differs from the first embodiment in that the limit assembly 300 includes a pin 310 and a limit member, the second end of the pin 310 is provided with a through hole 312, the through hole 312 passes through the pin 310 along the radial direction of the pin 310, and the limit member includes a key ring 322, at least part of the key ring 322 is passed through the through hole 312, the limit cap 311 and the key ring 322 respectively limit the two ends of the pin 310 to prevent the pin 310 from falling off due to vibration or external force, thereby ensuring the reliability of the connection between the first connector 100 and the second connector 200; and the detachable design of the limit member and the pin 310 facilitates the rapid assembly and disassembly of the pin 310, without the need for complex tools, reducing assembly time and labor costs.

[0052] Example 3

[0053] like Figure 7 As shown, this embodiment provides a connector connection structure, which is basically the same as the first embodiment, and differs from the first embodiment in that the limit assembly 300 includes a pin 310 and a limit member, the second end of the pin 310 is provided with a through hole 312, the through hole 312 passes through the pin 310 along the radial direction of the pin 310, and the limit member includes a cotter pin 323, at least part of the cotter pin 323 is passed through the through hole 312, the limit cap 311 and the cotter pin 323 respectively limit the two ends of the pin 310 to prevent the pin 310 from falling off due to vibration or external force, thereby ensuring the reliability of the connection between the first connector 100 and the second connector 200; and the detachable design of the limit member and the pin 310 facilitates the rapid assembly and disassembly of the pin 310, without the need for complex tools, reducing assembly time and labor costs.

[0054] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A joint connection structure, characterized in that: include: A first connector (100) and a second connector (200), wherein at least a portion of the first connector (100) is plugged into the second connector (200); A limiting assembly (300) comprises a latch (310) and a limiting member for preventing the latch (310) from falling off, wherein the latch (310) penetrates the second joint (200) in a radial direction of the second joint (200) and limits the first joint (100) in an axial direction of the second joint (200), a limiting cap (311) is provided at a first end of the latch (310), and the limiting member is detachably connected to the second end of the latch (310).

2. The joint connection structure according to claim 1, characterized in that: The limiting member includes a nut (321), the second end of the latch pin (310) is provided with an external thread, and the nut (321) is threadedly connected to the second end of the latch pin (310) through the external thread.

3. The joint connection structure according to claim 1, characterized in that: A through hole (312) is provided at the second end of the latch (310), and the through hole (312) passes through the latch (310) in a radial direction of the latch (310); the limiting member includes a key ring (322), and at least a portion of the key ring (322) is passed through the through hole (312); Alternatively, the limiting member includes a cotter pin (323), and at least a portion of the cotter pin (323) is passed through the through hole (312).

4. The joint connection structure according to claim 2, characterized in that: The first connector (100) comprises a plug-in portion (110), and a limiting groove (111) is provided on the plug-in portion (110); The second joint (200) comprises an assembly cavity (210), a cavity wall of the assembly cavity (210) is provided with a through hole (221) extending radially along the assembly cavity (210), and the through hole (221) is communicated with the assembly cavity (210); The plug-in portion (110) is inserted into the assembly cavity (210), the latch (310) is passed through the penetration hole (221), and at least a portion of the latch (310) is limited in the limiting groove (111).

5. The joint connection structure according to claim 4, characterized in that: A boss (220) is provided on the outer wall of the assembly cavity (210), and the through hole (221) passes through the boss (220).

6. The joint connection structure according to claim 5, characterized in that: The two ends of the boss (220) are respectively provided with a first table surface and a second table surface. The limiting assembly (300) further comprises a first sealing gasket (330) and a second sealing gasket. The first sealing gasket (330) is pressed between the limiting cap (311) and the first table surface, and the second sealing gasket is pressed between the second table surface and the nut (321).

7. The joint connection structure according to claim 4, characterized in that: The limiting groove (111) is an annular limiting groove (111).

8. The joint connection structure according to claim 4, characterized in that: The plug-in portion (110) is provided with a first sealing groove (112) and a second sealing groove (113). Along the plug-in direction of the plug-in portion (110), the first sealing groove (112) is located in front of the limiting groove (111), and the second sealing groove (113) is located behind the limiting groove (111). A first sealing member (114) is embedded in the first sealing groove (112), and a second sealing member (115) is embedded in the second sealing groove (113).

9. The joint connection structure according to claim 8, characterized in that: Along the axial direction of the plug-in portion (110), the width of the first sealing member (114) is greater than the width of the second sealing member (115).

10. The joint connection structure according to claim 8, characterized in that: The first sealing groove (112) is a first annular sealing groove, the first sealing member (114) is a first sealing ring, and the first sealing ring is embedded in the first annular sealing groove; The second sealing groove (113) is a second annular sealing groove, and the second sealing member (115) is a second sealing ring, which is embedded in the second annular sealing groove.

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