Joint conversion structure

Abstract

The utility model discloses a joint conversion structure, which comprises a round plug, an adapter shell and a quick-plug joint, one end of the adapter shell is radially contracted to form a first interface, the other end of the adapter shell is radially expanded to form a second interface, the quick-plug joint is mounted at the first interface through threads, and the round plug is connected with the adapter shell. The circular plug is installed at the second interface through threads, and the quick-plug connector is directly connected with the circular plug or is indirectly connected with the circular plug through a circuit. Through the application of the connector conversion structure, the connector conversion structure suitable for conversion connection of connectors of different standards is provided, stable connection between different connectors can be achieved, and the connector conversion structure is convenient to assemble and disassemble; the utility model has the advantages of simple structure and lower production cost.

Description

Technical Field

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

[0002] At present, different connectors are often used in the industrial field to meet the needs of electrical connection between devices. In the process of connecting the equipment, the problem of converting the connectors of two different connection standards to each other is actually encountered. In the prior art, the two connectors are generally directly connected only by connecting the wiring harness, etc. This connection method is often less stable and easily disconnected due to external force; at the same time, it is also inconvenient for operators to connect and replace the two connectors. Utility Model Content

[0003] In view of this, in order to solve the above problems, the purpose of the utility model is to provide a connector conversion structure, including: a circular plug, an adapter shell and a quick-connect connector, one end of the adapter shell radially contracts to form a first interface, the other end of the adapter shell radially expands to form a second interface, the quick-connect connector is threadedly installed at the first interface, the circular plug is threadedly installed at the second interface, and the quick-connect connector is directly connected to the circular plug or indirectly connected through a line.

[0004] In another preferred embodiment, the adapter shell includes: a first sleeve and a second sleeve connected to each other, the first sleeve has the first interface formed at one end, the second sleeve has the second interface formed at one end, and the radial outer contour of the first sleeve is smaller than the radial outer contour of the second sleeve.

[0005] In another preferred embodiment, an annular step surface is formed at the connection between the first sleeve body and the second sleeve body, and a plurality of reinforcing ribs are arranged on the annular step surface, and each of the reinforcing ribs is arranged along the radial direction of the annular step surface.

[0006] In another preferred embodiment, a first external thread matching the quick-connect connector is formed on the outer periphery of the first interface.

[0007] In another preferred embodiment, a second external thread matching the circular plug is formed on the outer circumference of the second interface.

[0008] In another preferred embodiment, the quick-plug connector includes: a first locking ring, a core and a pin, the core is formed with a connecting port, the pin is arranged in the connecting port, the first locking ring is sleeved on the outer side of the core, and the inner side of the first locking ring is formed with a first internal thread matching the first interface.

[0009] In another preferred embodiment, the quick-plug connector further includes: a first sealing ring and a second sealing ring, an annular protrusion is formed in the middle of the neutron, the first sealing ring and the second sealing ring are both sleeved on the neutron, and the first sealing ring and the second sealing ring are respectively arranged on both sides of the annular protrusion.

[0010] In another preferred embodiment, the quick-insert connector further comprises: a locking nut, the locking nut is rotatably mounted on one end of the connector, and a locking thread is disposed in the locking nut.

[0011] In another preferred embodiment, the circular plug includes: a second locking ring, a base and a plurality of inserts, the inner side of one end of the first locking ring is provided with a second internal thread matching the second interface, and one end of each of the inserts is embedded in the base.

[0012] In another preferred embodiment, a plurality of first protrusions are formed in the first interface, a plurality of second protrusions are formed in the second interface, a plurality of first grooves are formed on the outer side of the quick-connect connector, a plurality of second grooves are formed on the outer side of the circular plug, the first protrusions match the first grooves, and the second protrusions match the second grooves.

[0013] Due to the adoption of the above technical solution, the utility model has the following positive effects compared with the prior art:

[0014] Through the application of the utility model, a joint conversion structure suitable for conversion connection of joints of different standards is provided, which can achieve stable connection between different joints and is convenient for installation and disassembly; the utility model has a simple structure and low production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall schematic diagram of a joint conversion structure of the utility model;

[0016] Figure 2 It is a first exploded schematic diagram of a joint conversion structure of the utility model;

[0017] Figure 3 It is a second exploded schematic diagram of a joint conversion structure of the utility model;

[0018] Figure 4 This is a third exploded schematic diagram of a joint conversion structure of the utility model.

[0019] In the attached figure:

[0020] 1. Round plug; 2. Adapter shell; 3. Quick connector; 4. First interface; 5. Second interface; 6. First sleeve; 7. Second sleeve; 8. Annular step surface; 9. Reinforcement rib; 10. First external thread; 11. Second external thread; 12. First locking ring; 13. Neutron; 14. Connecting port; 15. First internal thread; 16. Locking nut; 17. Second locking ring; 18. Base; 19. Insert; 20. Second internal thread; 21. First protrusion; 22. Second protrusion; 23. First groove; 24. Second groove; 25. Annular protrusion. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0022] like Figures 1 to 4 As shown, a connector conversion structure of a preferred embodiment is shown, comprising: a round plug 1, an adapter shell 2 and a quick connector 3, one end of the adapter shell 2 is radially contracted to form a first interface 4, the other end of the adapter shell 2 is radially expanded to form a second interface 5, the quick connector 3 is installed at the first interface 4 by threading, the round plug 1 is installed at the second interface 5 by threading, and the quick connector 3 is directly connected to the round plug 1 or indirectly connected through a line. Further, the connection base between the round plug 1 and the quick connector 3 is formed by the adapter shell 2, so that the round plug 1 and the quick connector 3 can be easily installed at both ends of the adapter shell 2 by setting the thread, and in this process, the round plug 1 and the quick connector 3 can be pre-indirectly electrically connected through the corresponding line through the adapter shell 2, and the positions of the two can be relatively stable after tightening the two; in addition, the round plug 1 and the quick connector 3 can be provided with contacts for mutual connection at the position where they are close to each other, and the corresponding direct electrical connection is achieved by the mutual proximity and abutment of the two during installation.

[0023] Further, as a preferred embodiment, the model of the round plug 1 is preferably DIN43650A.

[0024] Further, as a preferred embodiment, the model of the quick-connect connector 3 is preferably IEC61076-2.

[0025] Further, as a preferred embodiment, the adapter shell 2 includes: a first sleeve 6 and a second sleeve 7 connected to each other, a first interface 4 is formed at one end of the first sleeve 6, a second interface 5 is formed at one end of the second sleeve 7, and a radial outer contour of the first sleeve 6 is smaller than a radial outer contour of the second sleeve 7.

[0026] Further, as a preferred embodiment, an annular step surface 8 is formed at the connection between the first sleeve body 6 and the second sleeve body 7 , and a plurality of reinforcing ribs 9 are arranged on the annular step surface 8 , and each reinforcing rib 9 is arranged along the radial direction of the annular step surface 8 .

[0027] Further, as a preferred embodiment, a first external thread 10 matching with the quick-connect connector 3 is formed on the outer periphery of the first interface 4 .

[0028] Further, as a preferred embodiment, a second external thread 11 matching with the circular plug 1 is formed on the outer periphery of the second interface 5 .

[0029] Further, as a preferred embodiment, the quick-plug connector 3 includes: a first locking ring 12, a core 13 and a pin (not shown), a connecting port 14 is formed on the core 13, the pin is arranged in the connecting port 14, the first locking ring 12 is sleeved on the outer side of the core 13, and a first internal thread 15 matching the first interface 4 is formed on the inner side of the first locking ring 12.

[0030] Further, as a preferred embodiment, the first internal thread 15 matches the first external thread 10 , and after installation, the first locking ring 12 at least partially surrounds the outer side of the end of the adapter shell 2 .

[0031] Further, as a preferred embodiment, the quick-plug connector 3 further includes: a first sealing ring and a second sealing ring, an annular protrusion 25 is formed in the middle of the neutron 13, the first sealing ring and the second sealing ring are both sleeved on the neutron 13, and the first sealing ring and the second sealing ring are respectively arranged on both sides of the annular protrusion 25. Further, the sealing performance at the connection position of the neutron 13 is ensured by the arrangement of the first sealing ring and the second sealing ring.

[0032] Further, as a preferred embodiment, annular grooves for clamping the first sealing ring and the second sealing ring are formed on the surface of the core 13 on both sides of the annular protrusion 25 .

[0033] Further, as a preferred embodiment, the outer periphery of the first sealing ring is preferably in contact with the inner periphery of the locking ring, and the outer periphery of the second sealing ring is preferably in contact with the inner periphery of the first interface 4 .

[0034] Further, as a preferred embodiment, the quick-connect connector 3 further includes: a locking nut 16, which is rotatably mounted on one end of the neutron 13, and a locking thread is provided in the locking nut 16. Further, the setting of the locking nut 16 allows the quick-connect connector 3 to be locked and connected to the wiring harness used to connect to the neutron 13, and the outer periphery of the end of the wiring harness is provided with a thread structure adapted to the locking nut 16.

[0035] Furthermore, as a preferred embodiment, the circular plug 1 includes: a second locking ring 17, a base 18 and a plurality of inserts 19, and a second internal thread 20 matching the second interface 5 is provided on the inner side of one end of the first locking ring 12, and one end of each insert 19 is embedded in the base 18.

[0036] Furthermore, as a preferred embodiment, the other end of each insert 19 protrudes from the base 18 and extends outward.

[0037] Further, as a preferred embodiment, the four inserts 19 are preferably arranged on the outer surface of the base 18 in a rectangular array.

[0038] Furthermore, as a preferred embodiment, the middle portion of the base 18 protrudes inward to form a sleeve, and a center column is disposed in the sleeve.

[0039] Further, as a preferred embodiment, the second internal thread 20 matches the second external thread 11 , and after installation, the second locking ring 17 at least partially surrounds the outer side of the end of the adapter shell 2 .

[0040] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention.

[0041] The utility model also has the following implementation methods based on the above:

[0042] In a further embodiment of the utility model, a plurality of first protrusions 21 are formed in the first interface 4, a plurality of second protrusions 22 are formed in the second interface 5, a plurality of first grooves 23 are formed on the outer side of the quick-connect connector 3, a plurality of second grooves 24 are formed on the outer side of the circular plug 1, the first protrusions 21 match the first grooves 23, and the second protrusions 22 match the second grooves 24.

[0043] In a further embodiment of the utility model, a plurality of first protrusions 21 are sequentially arranged in an annular shape around the inner edge of the first interface 4, and a corresponding first groove 23 is arranged at the other end of the core 13 of the quick connector 3, the first groove 23 at least has an opening portion facing the adapter shell 2, and the first locking ring 12 is rotatably sleeved on the core 13. Further, when installing the adapter shell 2 and the quick connector 3, the core 13 of the quick connector 3 is firstly extended into the first interface 4 along the axial direction, and the first protrusion 21 is inserted into the first groove 23 to form a limit, and then the first locking ring 12 is rotated to fasten it to the adapter shell 2.

[0044] In a further embodiment of the utility model, a plurality of second protrusions 22 are sequentially arranged in an annular shape around the inner edge of the second interface 5, and the outer periphery of the base 18 of the circular plug 1 is extended axially to form a surrounding wall, and corresponding second grooves 24 are sequentially arranged axially on the surrounding wall, and the second grooves 24 at least have an opening portion facing the adapter shell 2, and the second locking ring 17 is rotatably sleeved on the base 18. Further, when the adapter shell 2 and the circular plug 1 are installed, the base 18 is first extended axially into the second interface 5, and the second protrusions 22 are inserted into the second grooves 24 to form a limit, and then the second locking ring 17 is rotated to fasten it to the adapter shell 2.

[0045] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A joint conversion structure, characterized in that: include: A circular plug, an adapter shell and a quick-connect connector, wherein one end of the adapter shell radially contracts to form a first interface, and the other end of the adapter shell radially expands to form a second interface. The quick-connect connector is threadedly installed at the first interface, and the circular plug is threadedly installed at the second interface. The quick-connect connector is directly connected to the circular plug or indirectly connected through a line.

2. The joint conversion structure according to claim 1, characterized in that: The adapter shell includes: a first sleeve and a second sleeve connected to each other, the first sleeve has the first interface formed at one end, the second sleeve has the second interface formed at one end, and the radial outer contour of the first sleeve is smaller than the radial outer contour of the second sleeve.

3. The joint conversion structure according to claim 2, characterized in that: An annular step surface is formed at the connection between the first sleeve and the second sleeve. A plurality of reinforcing ribs are arranged on the annular step surface, and each of the reinforcing ribs is arranged along the radial direction of the annular step surface.

4. The joint conversion structure according to claim 1, characterized in that: A first external thread matching the quick-connect connector is formed on the outer periphery of the first interface.

5. The joint conversion structure according to claim 1, characterized in that: A second external thread matching the circular plug is formed on the outer periphery of the second interface.

6. The joint conversion structure according to claim 1, characterized in that: The quick-connect connector includes: a first locking ring, a core and a pin, a connecting port is formed on the core, the pin is arranged in the connecting port, the first locking ring is sleeved on the outside of the core, and a first internal thread matching the first interface is formed on the inner side of the first locking ring.

7. The joint conversion structure according to claim 6, characterized in that: The quick-plug connector also includes: a first sealing ring and a second sealing ring. An annular protrusion is formed in the middle of the neutron. The first sealing ring and the second sealing ring are both sleeved on the neutron. The first sealing ring and the second sealing ring are respectively arranged on both sides of the annular protrusion.

8. The joint conversion structure according to claim 6, characterized in that: The quick-connect connector further comprises a locking nut rotatably mounted on one end of the connector, wherein a locking thread is provided in the locking nut.

9. The joint conversion structure according to claim 6, characterized in that: The circular plug includes: a second locking ring, a base and a plurality of inserts. The inner side of one end of the first locking ring is provided with a second internal thread matching the second interface, and one end of each of the inserts is embedded in the base.

10. The joint conversion structure according to claim 1, characterized in that: Several first protrusions are formed in the first interface, several second protrusions are formed in the second interface, several first grooves are formed on the outside of the quick-connect connector, and several second grooves are formed on the outside of the round plug. The first protrusions match the first grooves, and the second protrusions match the second grooves.

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