Plug

Abstract

The utility model discloses a plug, the right end of a head housing is provided with a circumferential waist-shaped hole, the middle part of the head housing is provided with a circumferential waist-shaped groove, the left end of the head housing is provided with a slide-in groove, the slide-in groove is communicated with the corresponding circumferential waist-shaped groove, a connecting sleeve is sleeved on the head housing, and the connecting sleeve can rotate relative to the head housing. A first rivet hole and a second rivet hole are formed in the connecting sleeve, a first rivet is installed in the circumferential kidney-shaped hole, a second rivet and a reset spring are installed in the circumferential kidney-shaped groove, the top of the second rivet is located in the second rivet hole, one end of the reset spring abuts against the second rivet, and the other end of the reset spring abuts against the second rivet. The other end of the reset spring abuts against the side wall, away from the sliding-in groove, of the circumferential kidney-shaped groove. The beneficial effects of the utility model are that in the plugging process, the first rivet moves along the track of the first arc to drive the connection sleeve to rotate, so that the reset spring is further compressed, and in the separation process, the connection sleeve can reset through the elastic restoring force of the reset spring, so that the plug and the plug are soft.

Description

Technical Field

[0001] The utility model relates to a connector, in particular to a plug. Background Art

[0002] Existing circular plug-in connectors are divided into straight-insert bolt locking and push-pull locking. Both types of connectors have no interlocking function after the plug and socket are plugged in, and have poor vibration and impact resistance. At the same time, when the plugs and sockets of the two connectors are separated, only an axial force is needed to directly separate them, which has poor reliability. In addition, the existing three-slot screw locking connector requires three spiral grooves for three-slot screw locking, which is difficult to process and requires high precision. At the same time, when the connector is plugged in and separated, the connecting sleeve needs to be rotated at least 120 degrees, requiring a large operating space and a large torque, and separation is relatively difficult.

[0003] After long-term research, the inventor has proposed a circular straight-plug connector, and the plug thereof has been improved. Utility Model Content

[0004] The utility model aims to overcome the disadvantages of the prior art and provide a plug.

[0005] The purpose of the utility model is achieved through the following technical solutions: a plug, including a head shell and a connecting sleeve, a head mounting plate is installed in the head shell, a head contact is installed in the head mounting plate, a circumferential waist-shaped hole is opened at the right end of the head shell, a circumferential waist-shaped groove is opened in the middle of the head shell, the circumferential waist-shaped hole and the circumferential waist-shaped groove both extend in the circumferential direction, a sliding groove is opened at the left end of the head shell, the sliding groove is connected with the corresponding circumferential waist-shaped groove, the connecting sleeve is sleeved on the head shell, and the connecting sleeve can rotate relative to the head shell, a first rivet hole and a second rivet hole are opened on the connecting sleeve, a first rivet is installed in the circumferential waist-shaped hole, the bottom of the first rivet is located in the inner cavity of the head shell, the top of the first rivet is riveted in the first rivet hole, a second rivet and a reset spring are installed in the circumferential waist-shaped groove, the top of the second rivet is located in the second rivet hole, one end of the reset spring abuts against the second rivet, and the other end of the reset spring abuts against the side wall of the circumferential waist-shaped groove away from the slide-in groove.

[0006] Optionally, plugs are installed at both ends of the return spring, one of the plugs abuts against the second rivet, and the other plug abuts against the side wall of the circumferential waist-shaped groove away from the sliding groove.

[0007] Optionally, the first rivet is a stepped column, and the diameter of the large end of the first rivet is larger than the axial width of the circumferential waist-shaped hole.

[0008] Optionally, the second rivet is a stepped column, and the diameter of the large end of the second rivet matches the axial width of the circumferential waist-shaped groove.

[0009] Optionally, the depth of the circumferential waist-shaped groove is greater than the depth of the slide-in groove.

[0010] Optionally, there are two circumferential waist-shaped grooves and two circumferential waist-shaped holes, which are evenly distributed on the same circumference.

[0011] Optionally, a resisting step and a limiting step are provided in the inner cavity of the head shell, and the inner diameter of the limiting step is smaller than the inner diameter of the resisting step.

[0012] Optionally, a guide protrusion is also provided in the inner cavity at the right end of the head shell.

[0013] The utility model has the following advantages: the plug of the utility model is provided with a first rivet. During the plugging process, the first rivet moves along the trajectory of the first arc, which can drive the connecting sleeve to rotate, thereby further compressing the reset spring. During the separation process, the connecting sleeve can be reset by the elastic restoring force of the reset spring, thereby making the plug and plugging smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a circular straight plug connector;

[0015] Figure 2 Schematic diagram of the plug and socket when plugged in Figure 1 ;

[0016] Figure 3 Schematic diagram of the plug and socket when plugged in Figure 2 ;

[0017] Figure 4 for Figure 3 Schematic cross-sectional view of AA in the figure;

[0018] Figure 5 for Figure 1 The enlarged schematic diagram of point B in the middle;

[0019] Figure 6 is a schematic diagram of the structure of the plug;

[0020] Figure 7 is a cross-sectional schematic diagram of a plug;

[0021] Figure 8 is a schematic diagram of the structure of the head shell;

[0022] Fig. 9 It is a structural schematic diagram of the connecting sleeve;

[0023] Fig.10 Schematic diagram of the socket structure Figure 1 ;

[0024] Fig.11 Schematic diagram of the socket structure Figure 2 ;

[0025] Fig.12is a schematic cross-sectional view of a socket;

[0026] In the figure, 100-plug, 200-socket, 101-head housing, 102-head mounting plate, 103-head contact, 104-connecting sleeve, 111-first rivet, 112-second rivet, 113-circumferential waist-shaped hole, 114-circumferential waist-shaped groove, 115-plug, 116-reset spring, 117-slide-in groove, 118-guide protrusion, 119-limiting ring, 120-resistance step, 121-first rivet hole, 122-second Two rivet holes, 123-limiting step, 201-seat shell, 202-seat mounting plate, 203-seat contact piece, 204-sealing ring, 205-mounting flange, 206-threaded section, 211-vertical groove, 212-horizontal groove, 213-first arc, 214-second arc, 215-third arc, 216-guide groove, 221-first cylinder, 222-second cylinder, 223-third cylinder, 224-fourth cylinder. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0031] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] like Figure 1 , Figure 2 and Figure 3 As shown, a circular straight plug connector includes a plug 100 and a socket 200. Figure 6 and Figure 7 As shown, the plug 100 includes a head shell 101 and a connecting sleeve 104. A head mounting plate 102 is installed in the head shell 101, and a head contact 103 is installed in the head mounting plate 102. In this embodiment, the head mounting plate 102 and the head contact 103 are both existing structures, and their installation methods are also existing technologies, so their structures and installation methods are not described in detail.

[0034] In this embodiment, if Figure 8 As shown, a circumferential waist-shaped hole 113 is provided at the right end of the head shell 101, a circumferential waist-shaped groove 114 is provided at the middle of the head shell 101, the circumferential waist-shaped hole 113 and the circumferential waist-shaped groove 114 both extend in the circumferential direction, a sliding groove 117 is provided at the left end of the head shell 101, the sliding groove 117 is connected with the corresponding circumferential waist-shaped groove 114, the connecting sleeve 104 is sleeved on the head shell 101, and the connecting sleeve 104 can rotate relative to the head shell 101, as shown in FIG. Fig. 9As shown, the connecting sleeve 104 is provided with a first rivet hole 121 and a second rivet hole 122, the first rivet 111 is installed in the circumferential waist-shaped hole 113, the bottom of the first rivet 111 is located in the inner cavity of the head shell 101, the top of the first rivet 111 is riveted in the first rivet hole 121, the second rivet 112 and the return spring 116 are installed in the circumferential waist-shaped groove 114, the top of the second rivet 112 is located in the second rivet hole 122, one end of the return spring 116 abuts against the second rivet 112, and the other end of the return spring 116 abuts against the side wall of the circumferential waist-shaped groove 114 away from the sliding groove 117. Further, as shown in FIG. Figure 8 As shown, plugs 115 are installed at both ends of the return spring 116, one of which is in contact with the second rivet 112, and the other plug 115 is in contact with the side wall of the circumferential waist-shaped groove 114 away from the sliding groove 117. During installation, the return spring 116 is first installed between the two plugs 115, and then the return spring 116 and the plug 115 are placed in the circumferential waist-shaped groove 114, and then the top of the second rivet 112 is inserted into the second rivet hole 122, and the second rivet 112 is aligned with the sliding groove 117, and the second rivet 112 is inserted into the sliding groove 117, and then the connecting sleeve 104 is pushed to move axially, so that the second rivet 112 moves along the sliding groove 117 and finally enters the circumferential waist-shaped groove 114, and then the position of the connecting sleeve 104 is adjusted circumferentially so that the first anchor hole and the second rivet 112 are aligned. The circumferential waist-shaped hole 113 is aligned, and then the top of the second rivet 112 is inserted into the second anchor hole from the bottom of the circumferential waist-shaped hole 113. At this time, the return spring 116 is in a compressed state, and one plug 115 abuts against the second rivet 112, and the other plug 115 abuts against the side wall of the circumferential waist-shaped groove 114 away from the sliding groove 117. Then, the top of the first rivet 111 and the second rivet 112 are riveted using a riveting process, so that the first rivet 111 will not fall out of the first rivet hole 121 and the second rivet 112 will not fall out of the second anchor hole. Preferably, the first rivet 111 and the first rivet hole 121 are clearance-fitted. After the first rivet 111 is riveted, the first rivet 111 can also rotate axially relative to the first rivet hole 121, thereby facilitating the first rivet 111 to move on the first arc 213.

[0035] In this embodiment, if Figure 4 As shown, the first rivet 111 is a stepped column, and the diameter of the large end of the first rivet 111 is larger than the axial width of the circumferential waist-shaped hole 113. Therefore, when the first rivet 111 is riveted and installed, the first rivet 111 cannot fall out of the first rivet hole 121 regardless of the position of the plug 100, due to the riveted joint at the top and the large end at the bottom, thereby ensuring the reliability of the installation of the first rivet 111.

[0036] In this embodiment, the second rivet 112 is a stepped column, and the large end diameter of the second rivet 112 matches the axial width of the circumferential waist-shaped groove 114, so that the second rivet 112 can only move in the circumferential direction when in use, so that the elastic restoring force of the reset spring 116 can act well on the second rivet 112, thereby ensuring that the connecting sleeve 104 can rotate in the circumferential direction relative to the head shell 101 under the action of the elastic restoring force.

[0037] In this embodiment, if Figure 8 As shown, the depth of the circumferential waist-shaped groove 114 is greater than the depth of the sliding groove 117. Preferably, the circumferential waist-shaped groove 114 and the sliding groove 117 form an L-shaped groove. Therefore, when the second rivet 112 slides into the circumferential waist-shaped groove 114, the circumferential spacing between the second rivet 112 and the plug 115 is at a maximum value. As the connecting sleeve 104 rotates, the second rivet 112 gradually approaches the plug 115 and finally abuts against the plug 115, thereby causing the return spring 116 to produce elastic deformation. Furthermore, the height of the large end of the second rivet 112 is less than or equal to the depth of the sliding groove 117. When the second rivet 112 slides into the circumferential waist-shaped groove 114, the second rivet 112 falls into the circumferential waist-shaped groove 114 under the action of its own weight. At this time, the operator can observe the position of the top of the second rivet 112 to determine whether the second rivet 112 has entered the circumferential waist-shaped groove 114.

[0038] In this embodiment, the socket 200 includes a seat housing 201, a seat mounting plate 202 and a seat contact 203. The seat mounting plate 202 is installed in the seat housing 201, and the seat contact 203 is installed in the seat mounting plate 202. The seat mounting plate 202 and the seat contact 203 are both existing structures, and their installation methods are also existing technologies. Therefore, their structure and installation method will not be described in detail.

[0039] In this embodiment, if Fig. 9 , Fig.10 and Fig.11As shown, the left end of the seat shell 201 is a plug-in end, and a vertical groove 211 and a guide groove 216 are provided on the plug-in end. In the circumferential direction, the guide groove 216 is located on one side of the vertical groove 211, and a transverse groove 212 is provided at the bottom of the vertical groove 211. The transverse groove 212 extends toward the guide groove 216. The groove wall of the vertical groove 211 close to the transverse groove 212 is an arc structure and forms a first arc 213. The left side wall of the transverse groove 212 is an arc structure and forms a third arc 215. The connection between the first arc 213 and the third arc 215 is through The second arc 214 has a smooth transition, so that the second arc 214 has a height. Furthermore, a guide protrusion 118 is also provided in the inner cavity at the right end of the head shell 101. During the plug-in process of the plug 100 and the socket 200, the guide protrusion 118 is first aligned with the guide groove 216, and then the plug 100 and the socket 200 are directly inserted. Due to the cooperation between the guide protrusion 118 and the guide groove 216, the head shell 101 and the seat shell 201 are axially relatively moved, so that the head contact 103 and the seat The contact piece 203 is plugged in, and the guide protrusion 118 is inserted into the guide groove 216. During the plugging process, the first rivet 111 enters the vertical groove 211, and the first rivet 111 rolls along the first arc 213. After the first rivet 111 rolls along the first arc 213, the first rivet 111 rotates in the circumferential direction relative to the head shell 101, thereby driving the connecting sleeve 104 to rotate in the circumferential direction. After the connecting sleeve 104 rotates in the circumferential direction, the second rivet 112 is squeezed and reset. The spring 116 increases the deformation of the return spring 116. As the plug 100 and the socket 200 are plugged in, the first rivet 111 transitions from the first arc 213 to the second arc 214. When the first arc passes over the second arc 214, the spring restoring force of the return spring 116 causes the connecting sleeve 104 to rotate in the opposite direction, thereby causing the first rivet 111 to enter the transverse groove 212. A pulling force is applied to the plug 100 or the socket 200, causing the first rivet 111 to enter the third arc 215.

[0040] In this embodiment, in axial projection, the transverse groove 212 is located on one side of the vertical groove 211, and the return spring 116 is located on the other side of the vertical groove 211, and the arc length of the circumferential waist-shaped hole 113 matches the arc length of the first circular arc 213, and the angle between the left end and the right end of the first circular arc 213 is less than 30°. Furthermore, the initial position of the first rivet 111 located at the circumferential waist-shaped hole 113 is the closest end, so after the first rivet 111 moves from the leftmost end to the rightmost end of the first circular arc 213, the first rivet 111 moves from the closest end to the farthest end of the circumferential waist-shaped hole 113, and when the first rivet 111 enters the second circular arc 214, the first rivet 111 starts to move from the farthest end to the closest end, and when the first rivet 111 passes over the high point of the second circular arc 214, the first rivet 111 quickly moves to the closest end.

[0041] In this embodiment, if Fig. 9 , Fig.10 and Fig.11 As shown, the seat shell 201 has multiple sections of cylinders, which are the first cylinder 221, the second cylinder 222, the third cylinder 223 and the fourth cylinder 224 from left to right. The vertical groove 211 and the guide groove 216 are opened on the second cylinder 222. The outer diameter of the first cylinder 221 is smaller than the outer diameter of the second cylinder 222, and the outer diameter of the second cylinder 222 is smaller than the outer diameter of the third cylinder 223. An annular groove is opened at the connection between the first cylinder 221 and the second cylinder 222, and a sealing ring 204 is installed in the annular groove. The outer diameter of the sealing ring 204 is smaller than the outer diameter of the second cylinder 222, and the outer diameter of the sealing ring 204 is larger than the outer diameter of the first cylinder 221. Further, as shown Figure 5 As shown, a resisting step 119 and a limiting step 123 are provided in the inner cavity of the head shell 101, the inner diameter of the limiting step 123 is smaller than the inner diameter of the resisting step 119, and the inner diameter of the resisting step 119 matches the outer diameter of the first cylinder 221. When the first rivet 111 moves to the highest point, the squeezing of the sealing ring 204 by the resisting step 119 reaches the maximum limit. Since the sealing ring 204 is an O-ring 204 made of rubber material, the O-ring 204 can be elastically deformed. After the resisting step 119 squeezes the sealing ring 204, the sealing ring 204 has an elastic restoring force on the resisting step 119. After the first rivet 111 passes the high point, the elastic restoring force of the sealing ring 204 enables the first rivet 111 to enter the third arc 215. At this time, the sealing ring 204 is also in a compressed state, thereby realizing sealing when the plug 100 and the socket 200 are plugged in.

[0042] In this embodiment, when the plug 100 and the socket 200 are separated, the connecting sleeve 104 is rotated circumferentially, so that the first rivet 111 enters the second arc 214 from the second arc 214 and moves to the high point of the second arc 214. At this time, the reset spring 116 is at the maximum compression amount, and then an axial pulling force is applied to the connecting sleeve 104, and the first rivet 111 enters the vertical groove 211 from the high point. At this time, the connecting sleeve 104 can be released, and the connecting sleeve 104 rotates in the opposite direction under the action of the reset spring 116, and the first rivet 111 moves along the trajectory of the first arc 213, thereby separating the plug 100 and the socket 200.

[0043] In this embodiment, if Fig. 9 , Fig.10 and Fig.11As shown, a mounting flange 205 is provided on the third cylinder 223, and a mounting hole is provided on the flange to facilitate the installation of the socket 200. Furthermore, an external thread is provided on the fourth cylinder 224, and a backing groove is provided between the fourth cylinder 224 and the third cylinder 223, so that the external thread on the fourth cylinder 224 can be conveniently connected to the tail accessory thread.

[0044] In this embodiment, there are two vertical grooves 211, guide grooves 216, circumferential waist-shaped grooves 114, and circumferential waist-shaped holes 113, which are evenly distributed on the same circumference, so that the plug 100 and the socket 200 are more gentle in the insertion and separation force, which greatly improves the efficiency of connector installation and use.

[0045] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A plug, characterized in that: It includes a head shell and a connecting sleeve, a head mounting plate is installed in the head shell, a head contact piece is installed in the head mounting plate, a circumferential waist-shaped hole is opened at the right end of the head shell, a circumferential waist-shaped groove is opened in the middle of the head shell, the circumferential waist-shaped hole and the circumferential waist-shaped groove both extend in the circumferential direction, a sliding groove is opened at the left end of the head shell, the sliding groove is connected with the corresponding circumferential waist-shaped groove, the connecting sleeve is sleeved on the head shell, and the connecting sleeve can rotate relative to the head shell, a first rivet hole and a second rivet hole are opened on the connecting sleeve, a first rivet is installed in the circumferential waist-shaped hole, the bottom of the first rivet is located in the inner cavity of the head shell, the top of the first rivet is riveted in the first rivet hole, a second rivet and a reset spring are installed in the circumferential waist-shaped groove, the top of the second rivet is located in the second rivet hole, one end of the reset spring abuts against the second rivet, and the other end of the reset spring abuts against the side wall of the circumferential waist-shaped groove away from the slide-in groove.

2. A plug according to claim 1, characterized in that: Plugs are installed at both ends of the return spring, one of which is in contact with the second rivet, and the other is in contact with the side wall of the circumferential waist-shaped groove away from the sliding groove.

3. A plug according to claim 1, characterized in that: The first rivet is a stepped column, and the diameter of the large end of the first rivet is larger than the axial width of the circumferential waist-shaped hole.

4. A plug according to claim 1, characterized in that: The second rivet is a stepped column, and the diameter of the large end of the second rivet matches the axial width of the circumferential waist-shaped groove.

5. A plug according to claim 1, characterized in that: The depth of the circumferential waist-shaped groove is greater than the depth of the slide-in groove.

6. A plug according to claim 1, characterized in that: There are two circumferential waist-shaped grooves and two circumferential waist-shaped holes, which are evenly distributed on the same circumference.

7. A plug according to claim 1, characterized in that: A resisting step and a limiting step are arranged in the inner cavity of the head shell, and the inner diameter of the limiting step is smaller than the inner diameter of the resisting step.

8. A plug according to claim 1, characterized in that: A guide protrusion is also arranged in the inner cavity of the right end of the head shell.

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