Connector

Abstract

The connector comprises a socket housing, a plug housing, a fixing ring, a push-pull ring and a reset member, the side wall of one end of the socket housing is provided with a waist-shaped hole and a circular hole, the waist-shaped hole is internally provided with a first ball, and the circular hole is internally provided with a second ball; the fixed ring is sleeved on the socket shell and can axially move relative to the socket shell; the push-pull ring is sleeved on the peripheries of the fixed ring and the socket shell; the reset part sleeves the socket shell and abuts against the fixing ring, and when the plug shell is inserted into the socket shell, one end, far away from the reset part, of the fixing ring is in contact with the first ball, and the second ball is located in the fixing ring; a clamping groove and an annular protrusion are arranged on the outer side wall of the plug shell, and the face, facing the socket shell, of the annular protrusion is a guide inclined face. According to the utility model, the plug shell and the socket shell can be clamped only by inserting the plug shell into the socket shell during plugging, so that the convenience of connection can be improved.

Description

Technical Field

[0001] This utility model relates to the field of connection structure technology, and in particular to a connector. Background Technology

[0002] Connectors typically consist of a plug and a socket. Existing connectors usually use a snap-fit ​​or threaded connection between the plug and socket. For example, when connecting by twisting, it usually requires two hands, and the twisting process generates a torsional torque on the wiring, which can easily damage it. Therefore, existing connectors are inconvenient to operate when plugging or disassembling.

[0003] Therefore, how to improve the ease of connection of connectors is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to provide a connector that can effectively improve the ease of connection between plugs and sockets.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A connector, comprising:

[0007] A socket housing, wherein a waist-shaped hole and a round hole are provided on the side wall of one end of the socket housing, a first round bead is provided in the waist-shaped hole, and a second round bead is provided in the round hole;

[0008] A retaining ring is sleeved on the socket housing and is axially movable relative to the socket housing;

[0009] A push-pull ring, which is sleeved on the outer periphery of the fixing ring and the socket housing;

[0010] A reset element, which is sleeved on the socket housing and abuts against the retaining ring;

[0011] The plug housing has a snap-fit ​​groove and an annular protrusion on its outer side wall. The side of the annular protrusion facing the socket housing is a guide slope, and the snap-fit ​​groove is located on the side of the annular protrusion away from the guide slope.

[0012] When the plug housing is inserted into the socket housing, the guide slope pushes the first ball to move, thereby moving the fixing ring and compressing the reset member. After the annular protrusion passes the first ball and the second ball, under the action of the reset member, the fixing ring, the first ball and the second ball are reset, and the second ball is engaged in the engagement groove.

[0013] In some embodiments, a first annular boss and a second annular boss are provided on the outer periphery of one end of the socket housing, the waist-shaped hole is provided on the side wall of the section of the socket housing where the first annular boss and the second annular boss are provided, the round hole is provided on the side wall of the socket housing where the second annular boss is provided, and one end of the fixing ring is pressed against the end face between the first annular boss and the second annular boss under the elastic force of the reset member.

[0014] In some embodiments, a first limiting protrusion is provided on the inner side of the end of the fixing ring opposite to the first annular boss. The first limiting protrusion abuts against the end face of the second annular boss away from the first annular boss under the elastic force of the reset member.

[0015] In some embodiments, the inner side of one end of the push-pull ring is provided with a first annular groove and a second annular groove that are isolated from each other in the axial direction. The first annular groove is located on the side of the second annular groove away from the reset member. The annular limiting boss between the first annular groove and the second annular groove is used to restrict the first ball in the waist-shaped hole. The first annular groove is used to accommodate the first ball during the process of the plug housing being removed from the socket housing. The second annular groove is used to accommodate the first ball and the second ball during the process of the plug housing being inserted into the socket housing.

[0016] In some embodiments, the push-pull ring is further provided with a first limiting step, and the outer side of the fixed ring near the reset member is provided with a second limiting protrusion. The second limiting protrusion is used to press against the first limiting step under the elastic force of the reset member.

[0017] In some embodiments, a support ring is further sleeved on the outer side of the socket housing, and the two ends of the reset member abut against the support ring and the fixing ring, respectively.

[0018] In some embodiments, the socket housing is provided with a limiting slope. When the plug housing is inserted into the socket housing until the second ball is engaged in the engagement groove, the guide slope contacts the limiting slope.

[0019] In some embodiments, a chamfer is provided between the side of the annular protrusion facing away from the guide slope and the outer peripheral surface of the annular protrusion.

[0020] In some embodiments, the outer periphery of the push-pull ring is provided with an anti-slip portion.

[0021] In some embodiments, the sidewall of the socket housing is provided with a plurality of waist-shaped holes and a plurality of round holes evenly distributed along the circumferential direction, and the plurality of waist-shaped holes and the plurality of round holes are intersected along the circumferential direction.

[0022] Compared with existing technologies, the above technical solution has the following advantages:

[0023] The connector provided by this utility model has the following characteristics: When the plug housing is inserted into the socket housing, the guide slope contacts the first ball. As the plug housing continues to advance, the guide slope pushes the first ball to move, thereby causing the fixing ring to move and compress the reset member. After the annular protrusion passes the first ball and the second ball, the fixing ring, the first ball and the second ball are reset under the action of the reset member, and the second ball is engaged in the engagement groove to realize the insertion of the plug housing and the socket housing. When it is necessary to separate the plug housing and the socket housing, the push-pull ring is pushed to cause the fixing ring to compress the reset member. At this time, the second ball loses the radial limiting effect of the fixing ring. Then the plug housing moves outward, and the annular protrusion pushes the second ball radially outward. As the plug housing moves outward, the annular protrusion pushes the first ball radially outward until the plug housing is removed from the socket housing. Because the plug housing only needs to be inserted into the socket housing during connection, the connection between the plug housing and the socket housing can be achieved, thus improving the convenience of connection. In addition, when disassembling, the push-pull ring needs to be pushed first before the plug housing and the socket housing can be separated, which can prevent the plug housing and the socket housing from separating due to misoperation, thereby ensuring the connection stability of the connector. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0025] Figure 1 An exploded view of a connector provided for a specific embodiment of this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of a connector with its plug housing and socket in a separated state, according to a specific embodiment of the present invention.

[0027] Figure 3 A cross-sectional view of a connector provided for a specific embodiment of this utility model;

[0028] Figure 4 This is a cross-sectional view of the plug housing of a connector according to a specific embodiment of the present invention.

[0029] Figure 5A cross-sectional view of a push-pull ring of a connector provided for a specific embodiment of this utility model;

[0030] Figure 6 A cross-sectional view of a connector socket provided for a specific embodiment of this utility model;

[0031] Figure 7 This is a cross-sectional view of the retaining ring of a connector according to a specific embodiment of the present invention.

[0032] The attached figures are labeled as follows:

[0033] 1-First O-ring, 2-Circular retaining ring, 3-Pressure block, 4-Plug spring, 5-Sealing block, 6-Second O-ring;

[0034] 7-Plug housing, 701-Snap-fit ​​groove, 702-Annular protrusion, 7021-Guide bevel, 7022-Chamfer;

[0035] 8-Push-pull ring, 801-First annular groove, 802-Second annular groove, 803-First limiting step, 804-Second limiting step, 805-Anti-slip part;

[0036] 9 - First bead, 10 - Second bead;

[0037] 11-Socket housing, 1101-Oval hole, 1102-Round hole, 1103-First annular boss, 1104-Second annular boss, 1105-Third annular boss, 1106-Limiting slope;

[0038] 12-Fixing ring, 1201-First limiting protrusion, 1202-Second limiting protrusion;

[0039] 13-Reset component, 14-Washer, 15-Support ring, 16-First socket spring, 17-Third O-ring, 18-Sealing ring, 19-Second socket spring, 20-Fourth O-ring, 21-Sealing rod, 22-Fifth O-ring, 23-Base housing. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] Please refer to Figures 1 to 7 .

[0042] The connector provided in this embodiment of the utility model includes: a socket housing 11, a plug housing 7, a retaining ring 12, a push-pull ring 8, and a reset member 13. The socket housing 11 has an oblong hole 1101 and a round hole 1102 on one end of its side wall. A first bead 9 is disposed in the oblong hole 1101 and can move within it. A second bead 10 is disposed in the round hole 1102. The diameters of the first bead 9 and the second bead 10 are larger than the wall thickness of the socket housing 11. The retaining ring 12 is sleeved on the socket housing 11 and can move axially relative to the socket housing 11. The push-pull ring 8 is sleeved on the outer periphery of the fixing ring 12 and the socket housing 11; the reset member 13 is sleeved on the socket housing 11 and abuts against the fixing ring 12. When the plug housing 7 is inserted into the socket housing 11, the end of the fixing ring 12 away from the reset member 13 contacts the first ball 9, and the second ball 10 is located inside the fixing ring 12; the outer wall of the plug housing 7 is provided with a snap-fit ​​groove 701 and an annular protrusion 702. The side of the annular protrusion 702 facing the socket housing 11 is a guide slope 7021, and the snap-fit ​​groove 701 is located on the side of the annular protrusion 702 away from the guide slope 7021. When the plug housing 7 is inserted into the socket housing 11, the guide slope 7021 contacts the first ball 9. As the plug housing 7 continues to advance, the guide slope 7021 pushes the first ball 9 to move, thereby moving the fixing ring 12 and compressing the reset member 13. After the annular protrusion 702 passes the first ball 9 and the second ball 10, under the action of the reset member 13, the fixing ring 12, the first ball 9, and the second ball 10 are reset, and the second ball 10 is engaged in the engagement groove 701 to realize the plug... The plug housing 7 and the socket housing 11 are connected. When it is necessary to separate the plug housing 7 and the socket housing 11, push the push-pull ring 8 to drive the fixing ring 12 to compress the reset member 13. At this time, the second ball 10 loses the radial limiting effect of the fixing ring 12. Then, the plug housing 7 moves outward, and the annular protrusion 702 pushes the second ball 10 out radially. As the plug housing 7 moves outward, the annular protrusion 702 pushes the first ball 9 out radially until the plug housing 7 is removed from the socket housing 11. Since the plug housing 7 only needs to be inserted into the socket housing 11 to achieve the snap-fit ​​between the plug housing 7 and the socket housing 11, the convenience of connection can be improved. In addition, when disassembling, the push-pull ring 8 needs to be pushed first before the plug housing 7 and the socket housing 11 can be separated, which can prevent the plug housing 7 and the socket housing 11 from separating due to misoperation, thereby ensuring the connection stability of the connector.

[0043] In some embodiments, such as Figure 6As shown, a first annular protrusion 1103 and a second annular protrusion 1104 are provided on the outer periphery of one end of the socket housing 11. The first annular protrusion 1103 and the second annular protrusion 1104 form a stepped structure. The first annular protrusion 1103 and the second annular protrusion 1104 are integrally formed on the outer side of the socket housing 11. An oblong hole 1101 is provided on the side wall of the section of the socket housing 11 where the first annular protrusion 1103 and the second annular protrusion 1104 are provided. A round hole 1102 is provided on the side wall of the socket housing 11 where the second annular protrusion 1104 is provided. The oblong hole 1101 faces the socket housing. The opening width at one end inside body 11 is smaller than the diameter of the first bead 9. It is only necessary to ensure that the first bead 9 can be exposed from the inner end of the waist-shaped hole 1101. The width of the outer end of the waist-shaped hole 1101 is not less than the diameter of the first bead 9. That is, the waist-shaped hole 1101 has a structure with a wider outer diameter and a narrower inner diameter. The opening diameter at the end of the round hole 1102 facing the inside of the socket housing 11 is smaller than the diameter of the second bead 10. It is only necessary to ensure that the second bead 10 can be exposed from the inner end of the round hole 1102. The diameter of the outer end of the round hole 1102 is not less than the diameter of the second bead 10. That is, the round hole 1102 has a structure with a wider outer diameter and a narrower inner diameter. One end of the retaining ring 12 is pressed against the end face between the first annular boss 1103 and the second annular boss 1104 under the elastic force of the reset member 13. That is, this end face plays an axial limiting role for the retaining ring 12. At this time, the first ball 9 is located in the waist-shaped hole 1101 on the side away from the retaining ring 12, and the second ball 10 is located in the round hole 1102 and inside the retaining ring 12. The reset member 13 can be a spring that can extend and retract axially.

[0044] In some embodiments, such as Figure 7 As shown, a first limiting protrusion 1201 is provided on the inner side of the end of the fixing ring 12 away from the first annular protrusion 1103. The first limiting protrusion 1201 is preferably integrally formed in the fixing ring 12. The first limiting protrusion 1201 is preferably an annular structure. Under the elastic force of the reset member 13, the first limiting protrusion 1201 abuts against the end face of the second annular protrusion 1104 away from the first annular protrusion 1103. The first limiting protrusion 1201 and the first annular protrusion 1103 can better limit the fixing ring 12.

[0045] In some embodiments, such as Figure 5As shown, the inner side of one end of the push-pull ring 8 is provided with a first annular groove 801 and a second annular groove 802 that are isolated from each other in the axial direction. The first annular groove 801 is located on the side of the second annular groove 802 away from the reset member 13. The annular limiting boss between the first annular groove 801 and the second annular groove 802 is used to restrict the first ball 9 in the waist-shaped hole 1101 to prevent the first ball 9 from falling out of the waist-shaped hole 1101. The first annular groove 801 is used to accommodate the first ball 9 during the process of the plug housing 7 being removed from the socket housing 11, such as... Figure 3 As shown, when the push-pull ring 8 moves to the right, the annular limiting protrusion inside the push-pull ring 8 will be misaligned with the first ball 9, and the first annular groove 801 will correspond to the first ball 9. When the plug housing 7 is pulled to the left, the first ball 9 moves radially toward the first annular groove 801 under the action of the annular protrusion 702. The second annular groove 802 is used to accommodate the first ball 9 and the second ball 10 during the process of the plug housing 7 being inserted into the socket housing 11. For example Figure 3 As shown, when the plug housing 7 is inserted into the socket housing 11, the annular protrusion 702 pushes the first ball 9 from the left side to the right side within the waist-shaped hole 1101. At the same time, the fixing ring 12 moves to the right under the action of the first ball 9. At this time, the fixing ring 12 loses its radial limiting effect on the second ball 10, causing the first ball 9 and the second ball 10 to move towards the second annular groove 802. After the annular protrusion 702 passes the first ball 9 and the second ball 10, the annular protrusion 702 loses its pushing effect on the second ball 10. At this time, under the elastic force of the reset member 13, the fixing ring 12 moves to the left to push the second ball 10 towards the snap-fit ​​groove 701. At the same time, the fixing ring 12 also pushes the first ball 9 to the left side within the waist-shaped hole 1101. Under the action of the annular limiting protrusion, the first ball 9 is restricted within the waist-shaped hole 1101. At this time, only the parts of the first ball 9 and the second ball 10 exposed from the socket housing 11 are located within the snap-fit ​​groove 701.

[0046] In some embodiments, such as Figure 5 As shown, the push-pull ring 8 is also provided with a first limiting step 803, and the outer side of the fixed ring 12 near the reset member 13 is provided with a second limiting protrusion 1202. The second limiting protrusion 1202 is preferably integrally formed on the fixed ring 12. The second limiting protrusion 1202 is used to press against the first limiting step 803 under the elastic force of the reset member 13, such as... Figure 3 As shown, when the push-pull ring 8 is pushed to the right, the fixed ring 12 moves to the right under the action of the first limiting step 803 and the second limiting protrusion 1202. Furthermore, a third annular protrusion 1105 is provided on the outer periphery of the first annular protrusion 702. Under the elastic force of the reset member 13, the annular limiting protrusion in the push-pull ring 8 is pressed against the step surface of the third annular protrusion 1105.

[0047] In some embodiments, such as Figure 3 As shown, a support ring 15 is also fitted on the outer side of the socket housing 11. The two ends of the reset member 13 are respectively pressed against the support ring 15 and the fixing ring 12. The support ring 15 mainly provides axial support for the reset member 13. Specifically, the connector also includes a base housing 23. One end of the socket housing 11 is provided with a first annular boss 1103 and a second annular boss 1104, and the outer circumference of the other end is provided with an external thread. The fixing ring 12 is fitted on the socket housing 11, and the base housing 23 is provided with an internal thread. The socket housing 11 and the base housing 23 are threadedly connected. One end of the base housing 23 contacts one end of the fixing ring 12 to provide axial limiting for the support ring 15. Furthermore, a first socket spring 16 and a washer 14 are also sleeved outside the support ring 15. A second limiting step 804 is provided on the inner side of the end of the push-pull ring 8 away from the first annular groove 801. One end face of the washer 14 contacts the second limiting step 804, and the other end of the washer 14 contacts one end of the first socket spring 16. The other end of the first socket spring 16 abuts against one end of the base housing 23. The first socket spring 16 can provide axial limiting for the push-pull ring 8 to prevent axial movement of the push-pull ring 8 relative to the socket housing 11 when the plug housing 7 is inserted. The washer 14 can be removed so that both ends of the first socket spring 16 abut against the push-pull ring 8 and the base housing 23 respectively. Figure 3 As shown, the diameter of the first socket spring 16 can be appropriately increased so that the left end of the first socket spring 16 abuts against the second limiting step 804 and the right end abuts against the base housing 23.

[0048] In some embodiments, such as Figure 6 As shown, a limiting inclined surface 1106 is provided inside the socket housing 11. Specifically, a limiting inclined surface 1106 can be provided inside the socket housing 11. When the plug housing 7 is inserted into the socket housing 11 until the second ball 10 is engaged in the engagement groove 701, the guide inclined surface 7021 contacts the limiting inclined surface 1106. Through surface-to-surface contact, the tightness of the connection between the two can be improved.

[0049] In some embodiments, such as Figure 4 As shown, a chamfer 7022 is provided between the side of the annular protrusion 702 that is away from the guide slope 7021 and the outer peripheral surface of the annular protrusion 702. The chamfer 7022 can reduce the wear between the second ball 10 and the annular protrusion 702, and can also facilitate pulling the plug housing 7 outward.

[0050] In some embodiments, such as Figure 5As shown, the outer periphery of the push-pull ring 8 is provided with an anti-slip part 805. The anti-slip part 805 can be a groove provided on the outer periphery of the push-pull ring 8. On the one hand, it can facilitate the user to move the push-pull ring 8, and on the other hand, it can save materials and reduce costs. In addition to providing a groove on the outer periphery of the push-pull ring 8, anti-slip textures can also be provided on the outer periphery of the push-pull ring 8.

[0051] In some embodiments, the sidewall of the socket housing 11 is provided with a plurality of waist-shaped holes 1101 and a plurality of round holes 1102 evenly distributed along the circumferential direction. The plurality of waist-shaped holes 1101 and the plurality of round holes 1102 are intersected along the circumferential direction. For example, four waist-shaped holes 1101 can be provided on the sidewall of the socket housing 11. The length extension direction of the waist-shaped holes 1101 is parallel to the axial direction of the socket housing 11. The four waist-shaped holes 1101 are evenly distributed along the circumferential direction of the socket housing 11. Four round holes 1102 can be provided on the socket housing 11. The four round holes 1102 are evenly distributed along the circumferential direction of the socket housing 11. A round hole 1102 is distributed between two adjacent waist-shaped holes 1101.

[0052] In some embodiments, such as Figure 1 and Figure 3 As shown, the connector also includes the following components: a first O-ring 1, a circular retaining ring 2, a pressure block 3, a plug spring 4, a sealing block 5, a second O-ring 6, a third O-ring 17, a sealing ring 188, a second socket spring 19, a fourth O-ring 20, a sealing rod 21, and a fifth O-ring 22, as shown. Figure 2 and Figure 3 As shown, the outer periphery of the plug housing 7, which is away from the socket housing 11, is provided with a thread. The outer periphery of the plug housing 7 is also provided with a flange. A first sealing groove is provided at the position between the flange and the thread. A first O-ring 1 is located in the first sealing groove. A retaining groove is provided inside the plug housing 7. A circular retaining ring is set in the retaining groove. The pressure block 3, the spring of the plug housing 7, the sealing block 5, and the second O-ring 6 are located inside the plug housing 7. The two ends of the spring of the plug housing 7 are respectively connected to the pressure block 3 and the sealing block 5. The circular retaining ring is used to limit the axial position of the pressure block 3. A second sealing groove is provided on the outer periphery of the sealing block 5. The second O-ring 6 is set in the second sealing groove to achieve a seal between the sealing block 5 and the plug housing 7. The base housing 23 is provided with a fourth sealing groove, and a fourth sealing ring is located in the fourth sealing groove to achieve a seal between the socket housing 11 and the base housing 23. The sealing ring 188 and the second socket spring 19 are sleeved on the sealing rod 21. The two ends of the sealing ring 188 are respectively abutted against the protrusion on the outer periphery of the sealing rod 21 and the sealing ring 188. A fifth sealing groove is provided on the end of the sealing rod 21 facing the sealing block 5. The fifth O-ring 22 is located in the fifth sealing groove. The end faces of the sealing block 5 and the sealing rod 21 are in contact with each other.

[0053] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0054] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0055] The connector provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the core idea of ​​this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A connector, characterized in that, include: A socket housing, wherein a waist-shaped hole and a round hole are provided on the side wall of one end of the socket housing, a first round bead is provided in the waist-shaped hole, and a second round bead is provided in the round hole; A retaining ring is sleeved on the socket housing and is axially movable relative to the socket housing; A push-pull ring, which is sleeved on the outer periphery of the fixing ring and the socket housing; A reset element, which is sleeved on the socket housing and abuts against the retaining ring; The plug housing has a snap-fit ​​groove and an annular protrusion on its outer side wall. The side of the annular protrusion facing the socket housing is a guide slope, and the snap-fit ​​groove is located on the side of the annular protrusion away from the guide slope. When the plug housing is inserted into the socket housing, the guide slope pushes the first ball to move, thereby moving the fixing ring and compressing the reset member. After the annular protrusion passes the first ball and the second ball, under the action of the reset member, the fixing ring, the first ball and the second ball are reset, and the second ball is engaged in the engagement groove.

2. The connector according to claim 1, characterized in that, The outer periphery of one end of the socket housing is provided with a first annular boss and a second annular boss. The waist-shaped hole is provided on the side wall of the section of the socket housing where the first annular boss and the second annular boss are provided. The round hole is provided on the side wall of the socket housing where the second annular boss is provided. One end of the fixing ring is pressed against the end face between the first annular boss and the second annular boss under the elastic force of the reset member.

3. The connector according to claim 2, characterized in that, The fixing ring has a first limiting protrusion on the inner side of the end opposite to the first annular boss. The first limiting protrusion abuts against the end face of the second annular boss away from the first annular boss under the elastic force of the reset member.

4. The connector according to claim 3, characterized in that, The inner side of one end of the push-pull ring is provided with a first annular groove and a second annular groove that are isolated from each other in the axial direction. The first annular groove is located on the side of the second annular groove away from the reset member. The annular limiting boss between the first annular groove and the second annular groove is used to restrict the first ball in the waist-shaped hole. The first annular groove is used to accommodate the first ball during the process of the plug housing being removed from the socket housing. The second annular groove is used to accommodate the first ball and the second ball during the process of the plug housing being inserted into the socket housing.

5. The connector according to claim 4, characterized in that, The push-pull ring is also provided with a first limiting step, and the outer side of the fixed ring near the reset member is provided with a second limiting protrusion. The second limiting protrusion is used to press against the first limiting step under the elastic force of the reset member.

6. The connector according to claim 5, characterized in that, A support ring is also fitted on the outside of the socket housing, and the two ends of the reset member abut against the support ring and the fixing ring, respectively.

7. The connector according to claim 1, characterized in that, The socket housing is provided with a limiting inclined surface. When the plug housing is inserted into the socket housing until the second ball is engaged in the engagement groove, the guide inclined surface contacts the limiting inclined surface.

8. The connector according to claim 1, characterized in that, A chamfer is provided between the side of the annular protrusion facing away from the guide slope and the outer peripheral surface of the annular protrusion.

9. The connector according to claim 1, characterized in that, The outer periphery of the push-pull ring is provided with an anti-slip part.

10. The connector according to claim 1, characterized in that, The side wall of the socket housing is provided with a plurality of waist-shaped holes and a plurality of round holes evenly distributed along the circumference, and the plurality of waist-shaped holes and the plurality of round holes are intersected along the circumference.

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