CN2212271Y

CN2212271Y - Multiple self-locking mechanism for electric connector

Info

Publication number: CN2212271Y
Application number: CN 94210968
Authority: CN
Inventors: 杨秉钰
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-05-09
Filing date: 1994-05-09
Publication date: 1995-11-08
Anticipated expiration: 2004-05-09

Abstract

The utility model relates to a multiple self-locking mechanism for electric connectors, which is characterized in that a slide groove 171 of a setover lock of the utility model is improved to a circular arc with equal curvatures, and a top end is provided with a downward setover circular hole 172. The other two self-locking mechanisms of the utility model are that a frictional pressure lock is composed of a compression nut 14 on a socket 12 and a connecting link 17 with different disclinations, and a pressure ring 175 on the connecting link 17 is pressed by a ratchet 131 on a multifunctional mounting plate 13 to form a ratchet fixed lock. The improved setover lock can eliminate manufacture errors in a coupled system, and the other two self-locking mechanisms can ensure that the electric connectors can be operated reliably if the setover locks are ineffective.

Description

Multiple self-locking mechanism for electric connector

The utility model relates to electric connector, particularly relates to the shell structure of quick connection round electric connector.

Prior art connects round electric connector as shown in Figure 1 fast, comprises plug 1 and socket 2, and connecting ring 7 is arranged on the plug 1, and socket 2 is fixed on device panel or the structure.Plug 1 alignment socket 2 is filled in, made 120 °～180 ° of connecting ring 7 rotations, connect promptly to accuse and finish.

The quick connection coupled system of described electric connector is provided with the anti-self-locking mechanism of throwing off, promptly common alleged biases lock, see Fig. 1, when connecting ring 7 rotations, round key 6 on the socket 2 moves to peak along chute 71, falls into locking in the biasing self-locking hole 72 at the pressure of wavy lock washer (be called for short ripple spring) 73.The shortcoming of this self-locking mechanism is can not eliminate the manufacturing gap in the coupled system, the frequent under external force relative displacement of plug 1 and socket 2 in practical environment, contact resistance fluctuates thereupon, cause the circuit change in pressure drop, produce electromagnetic interference, make the circuit working instability.And so the material stress that causes of dynamic environment changes, and can quicken the fatigue surrender of lock washer 73, in case its fracture or weak, this self-locking mechanism promptly lost efficacy, and made connection failure.

The purpose of this utility model is to avoid above-mentioned the deficiencies in the prior art part and design that a kind of multiple self-locking mechanism is provided, be used for described electric connector, making it to work in dynamic environment guarantees that still reliable electrical connection is arranged, and technology is simple, and material obtains easily.

The purpose of this utility model can reach by following measure: design a kind of multiple self-locking mechanism that is used for electric connector, be included in the annexation of plug and socket of this electric connector, the self-locking mechanism of wherein setovering is, round key moves along the chute of connecting ring inwall, falls into self-locking hole at last and locks.Described chute is the iso-curvature circular arc, there is the biasing circular hole that moves down on the top, and in addition, also has double self-locking mechanism in addition, they are friction pressure locks that the connecting ring of clamping nut on the socket and different rotation direction constitutes, and the ratchet on the multi-functional mounting panel is pushed down the ratchet pin that the trim ring on the connecting ring constitutes.

The drawing of accompanying drawing is described as follows:

Fig. 1 is that the prior art self-locking mechanism is at the schematic diagram that connects fast on the round electric connector; Wherein Fig. 1-1 is a front view, and Fig. 1-2 is a zoomed-in view.

Fig. 2 is the situation that the triple self-locking mechanisms of the utility model are used for connecting fast round electric connector;

Fig. 3 is the situations of the triple self-locking mechanisms of the utility model on described electrical connector plug;

Fig. 4 is the situations of the triple self-locking mechanisms of the utility model on described electric connector socket: wherein Fig. 4-1 is a front view, and Fig. 4-2 is an end view.

Fig. 5-the 1st, the prior art self-locking mechanism is in the expanded view of the first-class slope straight line of described electric connector connecting ring 7 inwalls chute 71 and top kidney shape self-locking offset hole 72 thereof;

Fig. 5-the 2nd, the iso-curvature arc chute of the triple self-locking mechanisms of the utility model on described electric connector connecting ring inwall.

Be described in further detail with regard to a most preferred embodiment below in conjunction with accompanying drawing:

The rule that resistance strengthens gradually in the design of prior art self-locking mechanism chute 71 and plug 1, socket 2 connection procedures is not inconsistent.Modern electric connector connects the resistance except that overcoming contact in connection procedure, also will overcome the stress of linkage interface hermetically-sealed construction distortion, thereby connects resistance and strengthen gradually, and to last one section, resistance increases suddenly.The icocline rate straight line chute 71 of prior art is seen Fig. 5-1, causes in the axial displacement of lower resistance section too slowly, makes the operator feel to connect difficulty during to the high-drag section again.Changing offset hole 72 over to from icocline rate straight line chute 71 must have slow transition, thereby 72 kidney shape holes commonly used have speed change and the dual function of biasing self-locking concurrently.The chute 171 of connecting ring 17 inwalls of the present utility model is seen Fig. 5-2, has two at least, and can as many as three, is symmetrically distributed, and is reliable to guarantee locking.Described chute 171 is iso-curvature circular arcs, the ring 17 that is rotatably connected, the slope of chute 171 progressively be reduced to zero and straight line tangent, the place sets the biasing self-locking hole 172 that moves at the point of contact.Chute 171 initial segment axial displacements are fast, and are gradually slow to high-drag section axial displacement speed, and to after zero velocity, changing self-locking shrinkage pool 172 over to.Whole curve movement and resistance curve tie in, and change the decline self-locking over to by the rising chute, the process nature, and operation is easily.Since the high-drag section and when changing self-locking over to chute rail level compression less, light abrasion, thereby prolonged connection lifetime and improved the self-locking reliability.Chute 171(Fig. 5-2 of the present utility model) manufacturability also is better than prior art (Fig. 5-1), the particularly high conformity of three chutes, and symmetry is good.

Under the pressure of wavy lock washer 173, the connecting ring 17 that enters self-locking position can not directly circle round, and cable towing pulling force can only make self-locking darker.During snatch-disconnect connector, before the connecting ring 17 that circles round, by shown in Figure 3, the operator imposes F direction thrust for earlier connecting ring 17, to overcome the pressure of wavy lock washer 173, round key 16 self-locking holes 172 is got back in the chute 171, i.e. separable electrical connector.Obviously, as long as wavy lock washer 173 can provide pressure (material is fatigue, surrender), chute 171 and self-locking hole 172 be over wear and tear not, and this cover self-locking mechanism is reliable.

But thing always has accident.Consider that from security standpoint the utility model has also designed double self-locking mechanism in addition.Fig. 2 and Fig. 3 are seen in the friction pressure self-locking that the left-handed clamping nut 14 of the first provides.Plug 11 connects complete under the drive of connecting ring 17 with socket 12, turn clamping nut 14 compresses with connecting ring 17.Clamping nut 14 on the socket 12 is a left hand thread, the connecting ring 17 of it and right-handed thread constitutes the friction pressures lock, different rotation direction makes to connect and is difficult for becoming flexible, clamping nut 14 makes round key 16 can not break away from offset hole 172, under normal circumstances, this just can get rid of the coupled system free gap between connecting ring 17 and the socket 12.As long as wavy lock washer 173, chute 171 and round key 16 still work, plug 11 just can continue to be connected work with socket 12.

Clamping nut 14 metal material manufacturing, the screw thread that cooperates with socket 12 on it is a three-start screw, 6～10 millimeters of pitch.Make 100 °～160 ° of clamping nut 14 rotations, cover whole axial stroke, guarantee to connect fast.The elastic caoutchouc that two side coated thickness of clamping nut 14 are 0.5～1 millimeter utilizes its viscosity property, under general manual manipulation torsion, makes clamping nut 14 and connecting ring 17 produce reliable frictional force self-locking, can not become flexible because of extraneous vibration.

Another heavy self-locking is the ratchet pin.Described ratchet 131 usefulness copper materials are made, be embedded at the nearly root position of cover plate 132, see Fig. 2 and Fig. 4, when cover plate 132 is uncovered, after plug 11 inserts socket 12, the torsion of torsion bung flange spring 134 makes it around axle 135 rotation, presses the periphery of trim ring 175 sagittal planes on the connecting ring 17 with axial force, finishes self-locking.Even other connections at this moment, self-locking damage parts, inefficacy, connector still guarantees reliable connection.And the ratchet self-locking can also be eliminated the fit clearance of plug 11 and connecting ring 17.

The edge of cover plate 132 inner faces is embedded with the rubber turn 138 of V-shaped section, when plug 11 does not insert socket 12, sees Fig. 4, cover plate 132 is made M to rotation around axle 135, can when cover plate 132 covers the connectivity port of socket 12, cover tightly, avoid rainwater, dust to invade connector inside.

The material that the multiple self-locking mechanism of the utility model uses is cheap and easy to get, and good manufacturability, and is easy to use, superior performance.

Compare with prior art, the advantage of the utility model multiple self-locking mechanism is: its biases lock chute has been modified, and can eliminate the foozle in the coupled system, and its in addition double self-locking mechanism then guarantees, just in case biases lock lost efficacy, electric connector still can reliably working in dynamic environment.

Claims

1, a kind of multiple self-locking mechanism that is used for electric connector is included in the annexation of the plug 11 of this electric connector and socket 12, and the self-locking mechanism of wherein setovering is that round key 16 moves along the chute 171 of connecting ring 17 inwalls, falls into self-locking hole 172 lockings at last; Described multiple self-locking mechanism is characterised in that: described chute 171 is iso-curvature circular arcs, and there is the biasing circular hole 172 that moves down on the top; They are friction pressure locks that the connecting ring 17 of clamping nut 14 and different rotation direction on the socket 12 constitutes, and the ratchet on the multi-functional mounting panel 13 131 is pushed down the ratchet pin that the trim ring 175 on the connecting ring 17 constitutes.

2, according to the described multiple self-locking mechanism that is used for electric connector of claim 1, it is characterized in that: the chute 171 of described connecting ring 17 inwalls has two at least, can as many as three, be symmetrically distributed, and reliable to guarantee locking.

3, according to the described multiple self-locking mechanism that is used for electric connector of claim 1, it is characterized in that: the clamping nut 14 on the described socket 12 is a left hand thread, the connecting ring 17 of it and right-handed thread constitutes the friction pressures lock, different rotation direction makes to connect and is difficult for becoming flexible, and clamping nut 14 makes round key 16 can not break away from offset hole 172.

4, according to the described multiple self-locking mechanism that is used for electric connector of claim 1, it is characterized in that: the matrix of described clamping nut 14 is metals, and two sides answer coated that the elastomeric material of viscous effect is arranged, as rubber.

5, according to the described multiple self-locking mechanism that is used for electric connector of claim 1, it is characterized in that: the left hand thread that described clamping nut 14 cooperates with socket should be the coarse pitch multiple thread, when rotating 100～160 °, can finish axial stroke.

6, according to the described multiple self-locking mechanism that is used for electric connector of claim 1, it is characterized in that: when cover plate 132 is uncovered maximum angle, propped up by one group of two connecting rod 139,139 liang of arm angles of two connecting rods this moment become 180 °.Two connecting rods 139 break away from holding state when the application of force makes two arm angles of two connecting rods 139 not become 180 °, and cover plate 132 could rotate under the twisting force of torsion spring 134.

7, according to the described multiple self-locking mechanism that is used for electric connector of claim 1, it is characterized in that: described ratchet 131 usefulness copper materials are made, be embedded at the nearly root position of cover plate 132, when cover plate 132 is uncovered, after plug 11 inserts socket 12, the torsion of torsion bung flange spring 134 makes it around axle 135 rotation, presses the periphery of trim ring 175 sagittal planes on the connecting ring 17 with axial force, finishes self-locking.

8, according to the described multiple self-locking mechanism that is used for electric connector of claim 4, it is characterized in that: the edge of described cover plate 132 inner faces, be embedded with the rubber turn 138 of V-shaped section, can when cover plate 132 covers the connectivity port of socket 12, cover tightly.