A vibration-resistant round m12 combo connector

Abstract

The utility model discloses a kind of anti-vibration circular M12 combination connectors, wherein, the outer side of female joint is movably sleeved with a threaded lock sleeve, the inside of the root of threaded lock sleeve is formed with first limit ring, the inner side wall of threaded lock sleeve is formed with internal thread, the root of the outer wall of female joint is formed with outwardly protruding reverse buckle limit ring, first limit ring and reverse buckle limit ring limit connection, to realize the active rotation cooperation between threaded lock sleeve and female joint;Male head's front side is formed recessed clamping groove, clamping groove is close to the root of male joint, the outer wall of male joint is formed with external thread, clamping groove is assembled with a rubber ring, threaded lock sleeve is connected in threaded mode in male joint, and the end surface of threaded lock sleeve is in contact with rubber ring.Screw locking provides sustained elastic force and friction force by compressing rubber ring, offset the thread loosening caused by vibration, significantly improve the anti-vibration performance of threaded connection.

Description

Technical Field

[0001] This utility model relates to the field of M12 connector technology, and in particular to a vibration-resistant circular M12 combination connector. Background Technology

[0002] The M12 connector is a circular connector widely used in industrial automation, sensor networks, and communication equipment. It is named for its approximately 12-millimeter diameter ("M" represents metric thread, and "12" represents the thread diameter). It was designed to meet the requirements of industrial environments for compactness, protection, vibration resistance, and high reliability.

[0003] M12 connectors typically use a threaded connection between the male and female heads. The threaded locking sleeve, which is rotated and installed on the female head, engages with the external thread on the male head to achieve thread locking between the male and female heads. However, the existing locking structure still has drawbacks. Under prolonged vibration, the threaded locking sleeve is prone to loosening, and poor contact can easily occur between the pins and the sockets of the male and female heads. Therefore, it is necessary to improve it. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a vibration-resistant circular M12 combination connector, which optimizes the thread locking design between the male and female heads, improves its shock resistance, and thus improves the stability and reliability of the M12 connector.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a vibration-resistant circular M12 combination connector, including a female head and a male head. The front side of the female head is formed with a tubular female connector, and the interior of the connecting tube is provided with multiple insert tubes. The front side of the male head is formed with a tubular male connector, and the interior of the male connector is provided with multiple pins, each pin being inserted into a corresponding insert tube. A threaded locking sleeve is movably sleeved on the outer side of the female connector. A first limiting ring is formed on the inner side of the root of the threaded locking sleeve. The inner side wall of the threaded locking sleeve is formed with an internal thread. The root of the outer wall of the female connector is formed with an outwardly protruding undercut limiting ring. The first limiting ring and the undercut limiting ring are connected to limit the movement of the threaded locking sleeve and the female connector.

[0006] The front side of the male connector has a recessed groove, which is close to the root of the male connector. The outer wall of the male connector has external threads. A rubber ring is fitted inside the groove. The threaded locking sleeve is threadedly connected to the male connector, and the end face of the threaded locking sleeve contacts the rubber ring.

[0007] In a further technical solution, the threaded locking sleeve has a second limiting ring formed inside. The second limiting ring is located in front of the inverted limiting ring, and there is an assembly gap between the two. The assembly gap is provided with multiple balls to form a bearing structure.

[0008] In a further technical solution, there is a clearance fit between the inner ring of the second limiting ring and the outer wall of the female connector.

[0009] In a further technical solution, the outer side of the second limiting ring is fitted with the end face of the male connector for limiting.

[0010] In a further technical solution, the outer wall of the male head is formed with a hexagonal twisting part.

[0011] In a further technical solution, a lead tube is formed on the rear side of the male connector, a recessed quick-connect groove is formed at the root of the lead tube, a connector sleeve is movably sleeved on the outside of the lead tube, and an inwardly protruding claw is formed at the opening of the connector sleeve, which is engaged with the quick-connect groove.

[0012] In a further technical solution, an elastic ring is fitted inside the quick-connect groove. The elastic ring is sandwiched between the outer side of the male connector and the end face of the connector sleeve, and the elastic ring is kept in a compressed state.

[0013] In a further technical solution, the outer side of the quick-connect groove is chamfered; the inner side of the claw is chamfered to match the quick-connect groove.

[0014] In a further technical solution, the inside of the lead tube is formed with a first lead tube cavity, the inner diameter of the first lead tube cavity gradually decreasing from the inside to the outside; the outside of the connector sleeve is formed with a lead clamp, the inner cavity of the lead clamp is formed with a second lead tube cavity, the inner diameter of the second lead tube cavity is equal to the minimum value of the first lead tube cavity, and the two are concentrically fitted.

[0015] The advantages of this invention compared to the prior art after adopting the above structure are:

[0016] 1. A rubber ring is added to the end face of the male connector. When the thread is tightened, the rubber ring is compressed to provide continuous elasticity and friction, which counteracts the loosening of the thread caused by vibration, significantly improves the vibration resistance of the threaded connection, and avoids the problem of loosening caused by increased clearance due to wear of traditional pure metal threads.

[0017] 2. The threaded locking sleeve has a second limiting ring and an undercut limiting ring with a gap between them, and is equipped with multiple balls to form a low-friction bearing structure to reduce rotational resistance. This makes the threaded locking sleeve rotate more smoothly, prevents metal fatigue fracture caused by frequent rotation of the threaded locking sleeve, and improves the insertion and extraction life of the connector.

[0018] 3. The male connector features a rear lead tube and a separate connector sleeve design. The connector sleeve further protects the lead wire and reduces the risk of lead wire breakage. In addition, an elastic ring is sandwiched between the connector sleeve and the male connector to prevent resonance of the connector sleeve and prevent overall connector resonance.

[0019] 4. The conical channel inside the lead tube improves the sealing performance between the lead tube and the wire. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a cross-sectional schematic diagram of the present invention. Detailed Implementation

[0023] The following are merely preferred embodiments of the present invention and do not limit the scope of protection of the present invention.

[0024] like Figure 1 and Figure 2 As shown, a vibration-resistant circular M12 combination connector includes a female connector 1 and a male connector 2. The front side of the female connector 1 has a tubular female connector 11, and the interior of the connecting tube has multiple inserts. The front side of the male connector 2 has a tubular male connector 22, and the interior of the male connector 22 has multiple pins, each of which is inserted into a corresponding insert. A threaded locking sleeve 12 is movably sleeved on the outer side of the female connector 11. The inner side of the root of the threaded locking sleeve 12 has a first limiting ring 121, and the inner wall of the threaded locking sleeve 12 has an internal thread. The root of the outer wall of the connector 11 is formed with an outwardly protruding undercut limiting ring 111. The first limiting ring 121 and the undercut limiting ring 111 are connected to limit each other to realize the movable rotational engagement between the threaded locking sleeve 12 and the female connector 11. The front side of the male connector 2 is formed with a recessed groove 211. The groove 211 is close to the root of the male connector 22. The outer wall of the male connector 22 is formed with an external thread. A rubber ring 4 is installed in the groove 211. The threaded locking sleeve 12 is threadedly connected to the male connector 22, and the end face of the threaded locking sleeve 12 contacts the rubber ring 4.

[0025] A rubber ring 4 is added to the end face of the male connector 2. When the thread is tightened, the rubber ring 4 is compressed to provide continuous elasticity and friction, which counteracts the loosening of the thread caused by vibration, significantly improves the vibration resistance of the threaded connection, and avoids the problem of easy loosening caused by the increase of gap due to wear of traditional pure metal threads.

[0026] Specifically, the threaded locking sleeve 12 has a second limiting ring 122 formed inside. The second limiting ring 122 is located in front of the inverted limiting ring 111, and there is an assembly gap between the two. The assembly gap is provided with multiple balls 3 to form a bearing structure.

[0027] The threaded locking sleeve 12 has a gap between the second limiting ring 122 and the backed limiting ring 111, and is equipped with multiple balls 3 to form a low-friction bearing structure to reduce rotational resistance. The threaded locking sleeve 12 rotates more smoothly, preventing metal fatigue fracture caused by frequent rotation of the threaded locking sleeve 12 and improving the insertion and extraction life of the connector.

[0028] Specifically, there is a clearance fit between the inner ring of the second limiting ring 122 and the outer wall of the female connector 11.

[0029] Specifically, the outer side of the second limiting ring 122 is in a limiting fit with the end face of the male connector 22.

[0030] Specifically, the outer wall of the male head 2 is formed with a hexagonal twisting part 21.

[0031] Specifically, the male connector 2 has a lead tube 23 formed on its rear side, a recessed quick-connect groove 231 formed at the root of the lead tube 23, a connector sleeve 24 is movably sleeved on the outside of the lead tube 23, and an inwardly protruding claw 241 is formed at the opening of the connector sleeve 24, which is engaged with the quick-connect groove 231.

[0032] The male connector 2 features a rear lead tube 23 and a separate connector sleeve 24. The connector sleeve 24 further protects the lead wire and reduces the risk of lead wire breakage. In addition, an elastic ring 232 is sandwiched between the connector sleeve 24 and the male connector 23 to prevent the connector sleeve 24 from resonating and to prevent the connector from resonating as a whole.

[0033] Specifically, an elastic ring 232 is sleeved inside the quick-connect groove 231. The elastic ring 232 is sandwiched between the outer side of the male connector 2 and the end face of the connector sleeve 24, and the elastic ring 232 is kept in a compressed state.

[0034] Specifically, the outer side of the quick-connect groove 231 is chamfered; the inner side of the claw 241 is chamfered to match the quick-connect groove 231.

[0035] Specifically, the inside of the lead tube 23 is formed with a first lead tube cavity 230, the inner diameter of the first lead tube cavity 230 gradually decreases from the inside to the outside; the outside of the connector sleeve 24 is formed with a lead clamp, the inner cavity of the lead clamp is formed with a second lead tube cavity 240, the inner diameter of the second lead tube cavity 240 is equal to the minimum value of the first lead tube cavity 230, and the two are concentrically fitted.

[0036] The lead tube 23 has a tapered channel inside, which can improve the sealing performance between the lead tube and the wire.

[0037] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A vibration-resistant circular M12 combination connector, comprising a female connector (1) and a male connector (2), wherein the front side of the female connector (1) is formed with a tubular female connector (11), and the interior of the connecting tube is provided with multiple insertion tubes; the front side of the male connector (2) is formed with a tubular male connector (22), and the interior of the male connector (22) is provided with multiple pins, each pin being inserted into a corresponding insertion tube, characterized in that: A threaded locking sleeve (12) is movably sleeved on the outer side of the female connector (11). A first limiting ring (121) is formed on the inner side of the root of the threaded locking sleeve (12). An internal thread is formed on the inner side wall of the threaded locking sleeve (12). An outwardly protruding undercut limiting ring (111) is formed at the root of the outer wall of the female connector (11). The first limiting ring (121) and the undercut limiting ring (111) are connected to limit each other so as to realize the movable rotational engagement between the threaded locking sleeve (12) and the female connector (11). The front side of the male connector (2) is formed with a recessed groove (211), which is close to the root of the male connector (22). The outer wall of the male connector (22) is formed with external threads. A rubber ring (4) is fitted inside the groove (211). The threaded locking sleeve (12) is threadedly connected to the male connector (22), and the end face of the threaded locking sleeve (12) contacts the rubber ring (4).

2. The vibration-resistant circular M12 combination connector according to claim 1, characterized in that: The threaded locking sleeve (12) has a second limiting ring (122) formed inside. The second limiting ring (122) is located in front of the inverted limiting ring (111), and there is an assembly gap between the two. The assembly gap is provided with multiple balls (3) to form a bearing structure.

3. The vibration-resistant circular M12 combination connector according to claim 2, characterized in that: The inner ring of the second limiting ring (122) and the outer wall of the female connector (11) are fitted with a clearance.

4. The vibration-resistant circular M12 combination connector according to claim 3, characterized in that: The outer side of the second limiting ring (122) is in a limiting fit with the end face of the male connector (22).

5. The vibration-resistant circular M12 combination connector according to claim 1, characterized in that: The outer wall of the male head (2) is formed with a hexagonal twisting part (21).

6. The vibration-resistant circular M12 combination connector according to claim 1, characterized in that: The male connector (2) has a lead tube (23) formed on its rear side. A recessed quick-connect groove (231) is formed at the root of the lead tube (23). A connector sleeve (24) is movably sleeved on the outside of the lead tube (23). A protruding claw (241) is formed at the opening of the connector sleeve (24). The claw (241) is engaged with the quick-connect groove (231).

7. A vibration-resistant circular M12 combination connector according to claim 6, characterized in that: An elastic ring (232) is sleeved inside the quick-connect groove (231). The elastic ring (232) is sandwiched between the outer side of the male connector (2) and the end face of the connector sleeve (24). The elastic ring (232) is kept in a compressed state.

8. The vibration-resistant circular M12 combination connector according to claim 7, characterized in that: The outer side of the quick-connect groove (231) is chamfered; the inner side of the claw (241) is chamfered to match the quick-connect groove (231).

9. A vibration-resistant circular M12 combination connector according to claim 8, characterized in that: The lead tube (23) has a first lead tube cavity (230) formed inside, and the inner diameter of the first lead tube cavity (230) gradually decreases from the inside to the outside; the outer side of the connector sleeve (24) has a lead clamp portion formed, and the inner cavity of the lead clamp portion has a second lead tube cavity (240) formed inside, and the inner diameter of the second lead tube cavity (240) is equal to the minimum value of the first lead tube cavity (230), and the two are concentrically fitted.

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