CN112909639B

CN112909639B - Shockproof connector and connector assembly

Info

Publication number: CN112909639B
Application number: CN202110124201.2A
Authority: CN
Inventors: 黄彪; 陈荣波
Original assignee: Shenzhen Signal Electronics Co ltd
Current assignee: Shenzhen Signal Electronics Co ltd
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2021-09-17
Anticipated expiration: 2041-01-28
Also published as: CN112909639A

Abstract

The invention discloses a shockproof connector and a connector assembly, wherein the shockproof connector comprises a connecting piece, an electric contact assembly and an engaging piece. The connecting piece is hollow and is provided with a thread section and a clamping section along the axial direction. The electric contact assembly is arranged in the connecting piece in a penetrating mode, a first annular bulge is arranged on the periphery of the electric contact assembly, the periphery of the electric contact assembly is located in the clamping section, and the first annular bulge is provided with a first meshing surface back to the threaded section. The meshing component is sleeved on the periphery of the electric contact component and can move along the axial direction of the electric contact component; the engaging piece is also clamped on the inner periphery of the clamping section to limit the relative rotation of the engaging piece and the connecting piece. The engaging member and the connecting member are rotatable together along the outer circumference of the electrical contact assembly. The engaging member further has a second engaging surface facing the first engaging surface, and the first engaging surface and the second engaging surface are provided with a concave-convex structure and are engaged with each other. The shockproof connector can solve the technical problem that the threaded connection is easy to loosen when the existing connector is in a continuous vibration working state.

Description

Shockproof connector and connector assembly

Technical Field

The invention relates to the field of electric shockproof connectors, in particular to a shockproof connector and a connector assembly.

Background

Many circular connectors on the market all realize inserting of contact pin terminal and jack terminal through threaded connection's mode and close the connection, and contact pin terminal and jack end overlap respectively outward promptly has screw and nut, and when screw and nut carried out threaded connection, contact pin terminal and jack end just fine interpolation were in the same place.

However, when some existing connectors are in a continuous vibration working state, the threaded connection is easy to loosen or fall off, so that the electrical signals are interrupted or disconnected instantly, and the use of the connectors and the transmission of the electrical signals are affected.

The above is only for the purpose of assisting understanding of the technical solutions of the present invention, and does not represent an admission that the above is the prior art.

Disclosure of Invention

The invention mainly aims to provide a shockproof connector, aiming at solving the technical problem that the threaded connection is easy to loosen when the conventional shockproof connector is in a continuous vibration working state.

To achieve the above objects, the present invention provides a connector for preventing vibration, which includes a connecting member, an electrical contact assembly, and an engaging member. The connecting piece is the cavity setting, and has screw thread section and joint section along its axial direction branch. The electric contact assembly is arranged in the connecting piece in a penetrating mode, a first annular bulge is arranged on the periphery of the clamping section, and the first annular bulge is provided with a first meshing surface back to the threaded section. The meshing component is sleeved on the periphery of the electric contact component and can move along the axial direction of the electric contact component; the engaging piece is further clamped on the inner periphery of the clamping section so as to limit the relative rotation of the engaging piece and the connecting piece. The engaging member and the connecting member may rotate together along an outer circumference of the electrical contact assembly. The engaging piece is also provided with a second engaging surface facing the first engaging surface, and the first engaging surface and the second engaging surface are both provided with concave-convex structures and are engaged with each other.

In one embodiment, the inner periphery of the clamping section is provided with a clamping groove, and the outer periphery of the meshing part is provided with a clamping protrusion which is in adaptive clamping connection with the clamping groove.

In an embodiment, an annular clamping groove is further formed in the inner periphery of the clamping section, a second annular bulge is further formed in the outer periphery of the meshing part, and the second annular bulge and the clamping bulge are arranged at intervals along the axial direction of the meshing part; the shockproof connector further comprises a clamping ring, wherein the clamping ring is arranged between the clamping protrusion and the second annular protrusion, and part of the clamping ring is located in the annular clamping groove so as to limit the meshing part to be separated from the connecting piece along the axial direction of the connecting piece.

In one embodiment, in the axial direction of the connector, the width of the annular clamping groove is larger than the thickness of the clamping ring; and/or the distance between the second annular bulge and the clamping bulge is larger than the thickness of the clamping ring.

In an embodiment, the second engaging surface is provided with an annular wavy structure, peaks and troughs of the wavy structure are smooth circular arcs, and the first engaging surface is provided with at least one engaging protrusion matched with the wavy structure.

In one embodiment, the connection has a first direction of rotation in which the threads on the threaded section are progressively tightened, each trough in the wave like structure having in sequence a first contact surface and a second contact surface; the inclination of the first contact surface relative to the valley bottom is smaller than that of the second contact surface relative to the valley bottom.

In one embodiment, the electrical contact assembly includes a shielding shell, a gel core secured within the shielding shell, and a contact terminal secured within the gel core; the shielding shell extends into the clamping section, and the first annular bulge is formed on the periphery of the shielding shell; the rubber core and the contact terminal extend from the shielding shell into the threaded section or extend out of the end part of the threaded section.

In an embodiment, the periphery of the rubber core is further provided with a third annular protrusion, the connecting piece is further provided with a pushing part, and the pushing part is located on one side of the third annular protrusion close to the clamping section and is opposite to or abutted against the third annular protrusion.

The present invention also provides a connector assembly, which includes a pin-end connector and a socket-end connector that are matched with each other, and at least one of the pin-end connector and the socket-end connector includes:

the connecting piece is arranged in a hollow mode and is provided with a thread section and a clamping section along the axial direction;

the electric contact assembly penetrates through the connecting piece, a first annular bulge is arranged on the periphery of the electric contact assembly positioned in the clamping section, and the first annular bulge is provided with a first meshing surface back to the threaded section; and the number of the first and second groups,

the meshing component is sleeved on the periphery of the electric contact component and can move along the axial direction of the electric contact component; the meshing piece is clamped on the inner periphery of the clamping section so as to limit the relative rotation of the meshing piece and the connecting piece; the engaging member and the connecting member are rotatable together along an outer circumference of the electrical contact assembly;

the engaging piece is also provided with a second engaging surface facing the first engaging surface, and the first engaging surface and the second engaging surface are both provided with concave-convex structures and are engaged with each other.

In one embodiment, an annular rubber ring is arranged between the jack end connector and the pin end connector; when the jack end connector and the pin end connector are in threaded connection, the annular rubber ring is abutted to the end part of the jack end connector or the end part of the pin end connector.

When the shockproof connector is in a continuous shock working state, the threaded connection between the connecting piece and the other connector is loosened, and the connecting piece needs to rotate firstly. And the connecting piece is required to rotate, so that the meshing piece clamped with the connecting piece is required to rotate. The engagement member is intended to be rotated, and an engagement force between the first engagement surface and the second engagement surface in the circumferential direction needs to be overcome. I.e. the threaded connection between the coupling piece and the other coupling intended to be loosened, it is necessary to overcome the engagement force between the first engagement surface and the second engagement surface in the circumferential direction. The shockproof connector increases the difficulty of loosening of the shockproof connector in a shaking state, so that the situation that the threaded connection between the connectors is not easy to loosen or even separate is avoided, the electric signal is prevented from being broken or disconnected instantaneously, and the normal use of the shockproof connector is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a conventional connector;

FIG. 2 is a schematic structural diagram of an embodiment of the shockproof connector of the present invention;

FIG. 3 is an exploded view of the configuration of the shock resistant connector of FIG. 2;

FIG. 4 is a cross-sectional view of the anti-rattle connector of FIG. 2;

FIG. 5 is a schematic view of an embodiment of a connection member of the anti-rattle connector of the present invention;

FIG. 6 is a sectional view of the structure of the connector of FIG. 5;

FIG. 7 is a partial schematic view of a shock resistant connector in accordance with another embodiment of the present invention;

FIG. 8 is a schematic view of an embodiment of the engagement member of the anti-rattle connector of the present invention;

FIG. 9 is a side view of the engagement member of FIG. 8;

FIG. 10 is a schematic view of an embodiment of the electrical contact assembly in the anti-rattle connector of the present invention;

FIG. 11 is a schematic structural view of an embodiment of a shield shell in the anti-vibration connector of the present invention;

fig. 12 is a schematic view of the shockproof connector of the present invention at the first and second mating surfaces.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)	Reference numerals	Name (R)
						10	Shockproof connector	31	A first annular projection	40	Engaging member
20	Connecting piece	311	First engaging surface	41	Second mating surface
						21	Thread segment	312	Engaging projection	411	Wave crest
22	Clamping section	3121	Third contact surface	412	Trough of wave
						221	Clamping groove	3122	Fourth contact surface	4121	First contact surface
222	Annular clamping groove	33	Shielding case	4122	Second contact surface
						223	Anti-skid structure	34	Rubber core	42	Clamping bulge
23	Push part	341	Third annular projection	43	Second annular bulge
						30	Electrical contact	35	Contact terminal	50	Snap ring

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B" including either scheme A, or scheme B, or a scheme in which both A and B are satisfied. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a shockproof connector.

In the field of connector technology, electrical connection between a device and a power source or between a device and a device is generally achieved by two connectors electrically connected to each other. The two connectors electrically connected to each other have various names such as male and female connectors, pin and socket connectors, fixed and

free end connectors

10A and 10B, and the like. The fixed end connector is mainly fixed on the equipment, in particular the electric contact assembly 30 in the fixed end connector is fixed on the equipment together with a screw or a nut on the external part of the fixed end connector. The free end connector is mainly connected to the end of the connecting wire and can move freely, and the external screw or nut can rotate relative to the internal electric contact assembly 30, so that the free end connector is conveniently connected with the fixed end connector.

The structure of the electrical shock resistant connector 10 of the present invention is mainly applied to the free end connector, but is not limited to the structure of the fixed end connector. In addition, the free end connector can be either a pin end connector or a socket end connector, and the specific type depends on whether the electrical contact assembly 30 inside the free end connector is provided with a pin contact or a socket contact. That is, the shockproof connector 10 of the present invention can be either a pin-end connector or a socket-end connector.

In an embodiment of the present invention, as shown in fig. 1 to 2, the connector 10 includes a connection member 20, an electrical contact assembly 30, and an engagement member 40. As shown in fig. 4 or 5, the connecting member 20 is hollow, and both ends of the connecting member are provided with openings communicated with the inside thereof, so as to facilitate the penetration of the electrical contact assembly 30. And the coupling piece 20 is divided in its axial direction by a threaded section 21 and a snap-in section 22. The threaded section 21 is provided with a thread formation which is intended primarily for threaded connection with the mating further connector. The thread structure of the thread segment 21 may be an external thread or an internal thread, and is not limited in particular. For example, in the present embodiment, the threaded section 21 is provided with an external thread, so in the present embodiment, the connection member 20 having an external thread may also be referred to as a screw, and the other connector to which the shockproof connector 10 of the present invention is coupled is provided with a nut, so that the two shockproof connectors 10 are screwed together.

The connector 20 is sleeved outside the electrical contact assembly 30 through the clamping section 22, specifically, as shown in fig. 3, the clamping section 22 is clamped with the engaging member 40 sleeved outside the electrical contact assembly 30, so that the whole connector 20 is rotatably mounted outside the electrical contact assembly 30. In addition, the clamping section 22 is mainly used as a hand-holding part for workers to rotate the connecting member 20, so that, as shown in fig. 4 or 5, the periphery of the clamping section 22 may be further provided with anti-slip structures 223, such as anti-slip bumps, anti-slip teeth, and the like.

In the present embodiment, as shown in fig. 5, the inner circumference of the connecting member 20 is stepped, that is, the inner circumference corresponding to the threaded section 21 is smaller than the inner circumference of the snapping section 22 in terms of inner diameter. Further, a step surface is formed between the threaded section 21 and the clamping section 22, and the step surface can be used for cooperating with a structure (such as the first annular protrusion 31) on the electrical contact assembly 30, so as to limit the connecting member 20 outside the electrical contact assembly 30 and prevent the connecting member 20 from falling off the electrical contact assembly 30 during transportation or use.

Referring to fig. 3, 6, 9 and 10, the electrical contact assembly 30 is inserted into the connecting member 20, and a first annular protrusion 31 is disposed on an outer circumference of the electrical contact assembly located in the clamping section 22, and the first annular protrusion 31 has a first engaging surface 311 facing away from the threaded section 21. The electrical contact assembly 30 is primarily used to make electrical contact with another connector to be mated, thereby transmitting electrical signals.

In the present embodiment, as shown in fig. 9 and 10, the electrical contact assembly 30 mainly includes a shielding shell 33, a rubber core 34 fixed in the shielding shell 33, and a contact terminal 35 fixed in the rubber core 34. Wherein, shielding shell 33 is hollow structure, and extends to connecting piece 20 in the joint section 22, just shielding shell 33's periphery is formed with first annular arch 31. The shielding shell 33 is mainly used for fixing the rubber core 34 and playing a role in shielding, so that the influence of an external electric field or a magnetic field on the transmission of the electric signal is avoided.

In addition, the end of the shielding shell 33 not extending into the clamping section 22 is generally used to fix a cable, and the cable is electrically connected to the electrical contact assembly 30 in the shielding shell 33, that is, the entire anti-vibration connector 10 is connected to the end of the cable, so that the anti-vibration connector 10 is connected to a power source or a device through the cable, and then connected to another connector matched with the power source or the device.

The rubber core 34 is arranged in the shielding shell 33 in an interference fit manner and fixed relative to the shielding shell 33, and the rubber core 34 can be forcibly pressed into the shielding shell 33 during installation, so that a large friction force is ensured between the rubber core 34 and the shielding shell 33. The rubber core 34 is mainly used for fixing the position of the contact terminal 35 so as to ensure that the pin and the jack between the two shockproof connectors are accurately inserted and combined. Specifically, the rubber core 34 may be provided therein with a fixing hole, and the contact terminal 35 is fixedly mounted in the fixing hole.

Contact terminal 35 can insert the needle structure, also can be for the jack structure, and specific can set for according to actual conditions, only need with contact terminal 35 fix glue core 34 in can. In this embodiment, the core rubber 34 and the contact terminal 35 extend from the shielding shell 33 into the threaded section 21, or may extend beyond the end of the threaded section 21 so as to be electrically contacted with another mating connector.

In addition, referring to fig. 3 and 9, in an embodiment, in order to enable the connecting member 20 to press the electrical contact assembly 30 against another connector, and ensure stable electrical contact, a third annular protrusion 341 is further disposed on an outer periphery of the rubber core 34, the connecting member 20 is further provided with a pushing portion 23, and the pushing portion 23 is located on a side of the third annular protrusion 341 close to the clamping section 22, and is disposed opposite to or abutted against the third annular protrusion 341. Taking the example of the threaded section 21 of the connecting member 20 being provided with an external thread, the third annular protrusion 341 on the rubber core 34 is located at the front end of the connecting member 20, and the end of the connecting member 20 is the pushing portion 23. When connected to another connector to be mated, the front end of the connecting member 20 presses the third annular protrusion 341 on the rubber core 34 against the other connector, so as to improve the contact stability between the electrical contact assembly 30 and the other connector.

Of course, the pushing portion 23 and the third annular protrusion 341 may be designed at other positions on the anti-vibration connector 10 according to the actual situation, and the specific design is not specifically limited herein.

Referring to fig. 3, 6 to 8, the engaging member 40 is also disposed in a hollow cylinder shape, is sleeved on the outer circumference of the electrical contact assembly 30, and is capable of moving relative to the electrical contact assembly 30 along the axial direction of the electrical contact assembly 30. The engaging member 40 is further engaged with the inner circumference of the engaging section 22 to limit the relative rotation with the connecting member 20, so that the engaging member 40 is also rotated when the connecting member 20 is rotated, and the engaging member 40 and the connecting member 20 can rotate together along the outer circumference of the electrical contact assembly 30. Conversely, when the engaging member 40 cannot rotate, the engaging member 40 also catches the connecting member 20 and the connecting member 20 cannot rotate.

For example, in an embodiment, please refer to fig. 4 and 7, a clamping groove 221 is formed in an inner periphery of the clamping section 22, the clamping groove 221 extends in an axial direction of the connecting member 20 and penetrates an end of the clamping section 22, and a clamping protrusion 42 adapted to be clamped with the clamping groove 221 is formed in an outer periphery of the engaging member 40. When the engaging member 40 is pushed into the engaging section 22 of the connecting member 20, the engaging protrusion 42 on the engaging member 40 can be pushed into the engaging groove 221 in the engaging section 22, so as to engage the engaging member 40 with the connecting member 20.

Of course, it is also possible to provide the inner circumference of the snap section 22 with the snap projection 42 and the outer circumference of the engaging member 40 with the corresponding snap groove 221. In addition, in order to make the engagement between the engaging member 40 and the connecting member 20 more stable, a plurality of engaging grooves 221 and engaging protrusions 42 may be provided, and the plurality of engaging grooves 221 and the plurality of engaging protrusions 42 are engaged with each other one by one.

In the present embodiment, as shown in fig. 6 to 8, the engaging member 40 further has a second engaging surface 41 facing the first engaging surface 311, and the first engaging surface 311 and the second engaging surface 41 are both provided with a concave-convex structure and engage with each other. Specifically, the first engaging surface 311 may be provided with a concave hole, the second engaging surface 41 may be provided with a protrusion, the protrusion is fitted into the concave hole, and an engaging force in a circumferential direction may be generated between a hole surface of the concave hole and a surface of the protrusion (the circumferential direction herein refers to a circumferential direction of the engaging member 40). The shrinkage pool can be provided with a plurality ofly, and a plurality of shrinkage pools are arranged along the protruding 31 circumference direction of first annular. The protrusion can also be provided with a plurality of, and a plurality of protrusions are arranged along the circumferential direction of meshing piece 40 to corresponding with the position of arranging of shrinkage pool, and then realize shrinkage pool and bellied meshing. In addition, the concave hole and the protrusion can be of a circular structure, and the orifice of the concave hole can be arranged in a smooth arc shape, so that when the meshing component 40 rotates, the protrusion on the meshing component 40 can better slide into the concave hole and be meshed with the concave hole.

Of course, the first engaging surface 311 and the second engaging surface 41 may be provided with a mesh structure, respectively, and further, by mesh of the mesh members with each other, a mesh force in the circumferential direction may be generated between the mesh members at the time of mesh. Alternatively, one of the first engaging surface 311 and the second engaging surface 41 is provided with an annular wavy structure, and the other is provided with an engaging protrusion 312, an engaging groove or the same wavy structure which is fittingly engaged with the wavy structure.

It can be understood that when the shockproof connector 10 of the present invention is in a continuous vibration working condition, the threaded connection between the connection member 20 and another connector is intended to be loosened, and the connection member 20 needs to be rotated first. And the connecting member 20 is rotated to bring the engaging member 40 engaged therewith into rotation. The engagement member 40 is rotated, and an engagement force between the first engagement surface 311 and the second engagement surface in the circumferential direction needs to be overcome. I.e. the threaded connection between the coupling piece 20 and the other coupling is intended to be loosened, it is necessary to overcome the engagement force between the first engagement surface 311 and the second engagement surface in the circumferential direction. That is, the shockproof connector 10 of the present invention increases the difficulty of loosening of the shockproof connector 10 in a shock state, so that the threaded connection between the shockproof connectors 10 is not easy to loosen or even fall off, thereby avoiding the instantaneous interruption or disconnection of the electrical signal and ensuring the normal use of the shockproof connector 10.

In an embodiment, as shown in fig. 3 to 8, an inner circumference of the clamping section 22 is further provided with an annular clamping groove 222, the annular clamping groove 222 extends along the inner circumference of the clamping section 22, an outer circumference of the engaging member 40 is further provided with a second annular protrusion 43, and the second annular protrusion 43 and the clamping protrusion 42 are arranged at a distance in the axial direction of the engaging member 40. The connector 10 further includes a snap ring 50, wherein the snap ring 50 is installed between the clamping protrusion 42 and the second annular protrusion 43, and is partially located in the annular clamping groove 222, that is, the snap ring 50 is located in the annular clamping groove 222 and the space between the clamping protrusion 42 and the second annular protrusion 43 at the same time. The snap ring 50 can restrict the engaging member 40 from being separated from the connecting member 20 in the axial direction of the connecting member 20, thereby preventing the engaging member 40 from being separated.

The snap ring 50 may be a C-shaped snap ring 50, so that when the snap ring 50 is mounted between the clamping protrusion 42 and the second annular protrusion 43, the snap ring 50 is deformed to some extent, and then the engaging member 40 is pushed into the clamping section 22 of the connecting member 20. The snap ring 50 is deformed to partially fit within the annular groove 222 until the space between the snap projection 42 and the second annular projection 43 corresponds to the annular groove 222 in the snap section 22.

In an embodiment, as shown in fig. 3, in the axial direction of the connecting element 20, the width of the annular clamping groove 222 is greater than the thickness of the clamping ring 50, and the interval between the second annular protrusion 43 and the clamping protrusion 42 is also greater than the thickness of the clamping ring 50, so that the clamping ring 50 does not clamp the engaging element 40 on the connecting element 20, and the engaging element 40 can move in a certain distance relative to the connecting element 20 along the axial direction of the connecting element 20.

In the present embodiment, for example, the second engaging surface 41 is provided with a wavy structure, and the first engaging surface 311 is provided with an engaging protrusion 312 adapted to engage with the wavy structure, because when the engaging member 40 rotates, the relative position of the engaging protrusion 312 on the wavy structure will alternate between the wave bottom 412 and the wave top 411. When the relative position of the engaging protrusion 312 is changed from the wave trough 412 to the wave crest 411, since the engaging protrusion 312 is relatively fixed on the electrical contact assembly 30, at this time, the engaging member 40 is not locked by the snap ring 50, and can move in a direction away from the first engaging surface 311, so that the engaging protrusion 312 on the first engaging surface 311 can more smoothly correspond to the wave crest 411 from the wave trough 412 until abutting against the peak top of the wave crest 411.

In addition, when the engaging protrusion 312 corresponds to the position of the wave crest 411 of the wavy structure, because the connecting member 20 continues to rotate and moves to the side where the threaded section 21 of the connecting member is located, the connecting member 20 can push the snap ring 50 to move to the side where the threaded section 21 is located through the annular snap groove 222, meanwhile, the snap ring 50 can also push the whole engaging member 40 to the side where the threaded section 21 is located by pushing the snap protrusion 42 outside the engaging member 40, and further, the relative position of the engaging protrusion 312 is gradually switched from the position of the wave crest 411 to the position of the wave trough 412. Alternatively, as the connector 20 continues to rotate and move to the side where the clamping section 22 is located, the step surface on the inner periphery of the connector 20 pushes the first annular protrusion 31 on the electrical contact assembly 30 to push the entire electrical contact assembly 30 to the side where the clamping section 22 is located, and the relative position of the engaging protrusion 312 is gradually switched from the peak 411 position to the valley 412 position.

It should be noted that, when the concave-convex structures on the first engaging surface 311 and the second engaging surface 41 can be elastically deformed, the snap ring 50 can also be used to block the engaging member 40 on the connecting member 20, i.e. to limit the engaging member 40 from moving relative to the connecting member 20.

Of course, instead of the snap ring 50, an annular stop and an elastic member may be provided to prevent the engaging member 40 from being separated from the connecting member 20 while allowing the engaging member 40 to move relative to the connecting member 20. Specifically, after the engaging member 40 is pushed into the clamping section 22 of the connecting member 20, the end opening of the clamping section 22 is sealed by an annular baffle, and an elastic member is arranged between the annular baffle and the engaging member 40, wherein one end of the elastic member abuts against the engaging member 40, and the other end abuts against the annular baffle.

In one embodiment, as shown in fig. 8, in order to enable a worker to easily rotate the connecting member 20 to realize the threaded connection of the connecting member 20, the second engaging surface 41 is provided with an annular wavy structure, the wave crest 411 and the wave trough 412 of the wavy structure are both smooth and circular arc-shaped, and the first engaging surface 311 is provided with at least one engaging protrusion 312 matched with the wavy structure. It can be understood that compared with a rodent structure, the wave crests 411 and the wave troughs 412 are both smooth arc-shaped wavy structures, so that relative rotation between the first engaging surface 311 and the second engaging surface 41 is smoother, and a worker can tighten the connecting piece 20 more easily.

In order to make the tightening of the connecting member 20 easier and at the same time to have a sufficient engagement force for preventing loosening in a vibration state, on the basis that the second engagement surface 41 is provided with a wavy structure, as shown in fig. 8, 10 and 11, in an embodiment the connecting member 20 has a first rotational direction in which the threads on the threaded section 21 are gradually tightened and a second rotational direction in which the threads on the threaded section are gradually loosened, the first rotational direction and the second rotational direction being opposite. In the first rotational direction, each wave trough 412 in the wavy structure has a first contact surface 4121 and a second contact surface 4122 in turn, and for engagement, the engagement protrusion 312 has a third contact surface 3121 fittingly engaged with the first contact surface 4121 and a fourth contact surface 3122 fittingly engaged with the second contact surface 4122. The inclination of the first contact surface 4121 with respect to the valley bottom of the valley 412 is smaller than that of the second contact surface 4122 with respect to the valley bottom of the valley 412, so that when the engaging member 40 is rotated in the first rotating direction, because the third contact surface 3121 of the engaging protrusion 312 is relatively gentler, the movement resistance of each wave peak 411 in the wavy structure on the third contact surface 3121 is smaller, that is, the worker can tighten the connecting member 20 more easily. When the engaging member 40 rotates in the second rotating direction, because the fourth contact surface 3122 of the engaging protrusion 312 is relatively steeper, each wave peak 411 in the wavy structure has a greater moving resistance on the fourth contact surface 3122, i.e., the connecting member 20 can have a sufficient engaging force in a vibration state, thereby having a better anti-vibration and anti-loose effect.

The invention further provides a connector assembly, which includes a pin end connector and a jack end connector that are matched with each other, and the specific structure of at least one of the pin end connector and the jack end connector refers to the above embodiments.

In one embodiment, an annular rubber ring is arranged between the jack end connector and the pin end connector; when the jack end connector and the pin end connector are in threaded connection, the annular rubber ring is abutted to the end part of the jack end connector or the end part of the pin end connector. It can be understood that the annular rubber ring not only can play a waterproof role, but also can adjust the screwing degree of the connecting piece 20 in the matched other connector (namely, the threaded connection length of the external thread on the internal thread), so that the position that the engagement protrusion 312 is just engaged at the wave-shaped structure wave trough 412 can be controlled when the connecting piece 20 is screwed in place.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A vibration-proof connector, comprising:

the engaging piece is also provided with a second engaging surface facing the first engaging surface, and the first engaging surface and the second engaging surface are both provided with concave-convex structures and are engaged with each other;

the inner periphery of the clamping section is provided with a clamping groove, and the outer periphery of the meshing part is provided with a clamping bulge which is in adaptive clamping connection with the clamping groove;

the inner periphery of the clamping section is also provided with an annular clamping groove, the outer periphery of the meshing piece is also provided with a second annular bulge, and the second annular bulge and the clamping bulge are arranged at intervals along the axial direction of the meshing piece;

the shockproof connector further comprises a clamping ring, wherein the clamping ring is arranged between the clamping protrusion and the second annular protrusion, and part of the clamping ring is located in the annular clamping groove so as to limit the meshing part to be separated from the connecting piece along the axial direction of the connecting piece.

2. A vibration-proof connector as defined in claim 1, wherein the width of the annular catching groove is larger than the thickness of the catching ring in the axial direction of the connecting member; and/or the distance between the second annular bulge and the clamping bulge is larger than the thickness of the clamping ring.

3. A shock-resistant connector as recited in any one of claims 1 or 2, wherein said second engaging surface is provided with an annular wavy structure, peaks and valleys of said wavy structure are smoothly rounded, and said first engaging surface is provided with at least one engaging protrusion adapted to said wavy structure.

4. A shock resistant connector as recited in claim 3 wherein said connector has a first rotational direction of progressive tightening of the threads on said threaded section, each trough in said undulating configuration having in sequence a first contact surface and a second contact surface in said first rotational direction;

the inclination of the first contact surface relative to the valley bottom is smaller than the inclination of the second contact surface relative to the valley bottom.

5. A ruggedized connector of any of claims 1 or 2, wherein the electrical contact assembly comprises a shield shell, a gel core secured within the shield shell, and a contact terminal secured within the gel core;

the shielding shell extends into the clamping section, and the first annular bulge is formed on the periphery of the shielding shell; the rubber core and the contact terminal extend from the shielding shell into the threaded section or extend out of the end part of the threaded section.

6. A shock-proof connector as recited in claim 5, wherein a third annular protrusion is further formed on the outer periphery of the rubber core, and the connecting member further comprises a pushing portion, wherein the pushing portion is located on a side of the third annular protrusion close to the clamping section and is opposite to or abutted against the third annular protrusion.

7. A connector assembly comprising a pin-end connector and a socket-end connector that mate with each other, at least one of the pin-end connector and the socket-end connector being a rugged connector as claimed in any one of claims 1 to 6.

8. The connector assembly of claim 7, wherein an annular rubber ring is disposed between the receptacle end connector and the pin end connector;

when the jack end connector and the pin end connector are in threaded connection, the annular rubber ring is abutted to the end part of the jack end connector or the end part of the pin end connector.