SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects of the prior art, and provides a locking structure for a connector, aiming at the problems of high cost and long service life of the traditional spring locking structure.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
a locking structure for a connector comprises a first connecting seat body and a second connecting seat body, wherein an axial butt joint shaft matching mechanism is arranged between the first connecting seat body and the second connecting seat body, the shaft matching mechanism comprises a first shaft sleeve arranged on the first connecting seat body and a second shaft sleeve arranged on the second connecting seat body and penetrating into the first shaft sleeve, a locking boss with a radial outer edge is arranged at the free end of the first shaft sleeve,
a first locking piece and a second locking piece which are provided with relative displacement are arranged in the second connecting seat body, the first locking piece is provided with an elastic pipe sleeve provided with paired radial slits, the second locking piece is provided with a conical cylinder body which is used for being connected in the elastic pipe sleeve in a penetrating way,
the locking boss is provided with a limiting annular end face deviating from one side of the second connecting seat body, the first locking piece or the second locking piece is provided with a locking pile platform axially matched with the limiting annular end face, and the first locking piece or the second locking piece where the locking pile platform is located is provided with an exposed driving end exposed relative to the second connecting seat body.
Preferably, the first locking piece is fixedly arranged in the second connecting seat body, the second locking piece has a relative displacement towards the first locking piece, and the locking pile platform is arranged on the second locking piece.
Preferably, the first locking member is provided with an alignment boss for aligning and matching with the second connecting seat body, the second locking member is slidably matched with the second connecting seat body, the second connecting seat body is provided with a limiting portion for limiting the second locking member, and the second locking member is provided with the exposed driving end which penetrates through the limiting portion and is exposed.
Preferably, a plurality of guide parts in sliding fit are arranged between the second locking piece and the second connecting seat body.
Preferably, the second locking member is fixedly disposed in the second connecting seat body, the first locking member has a relative displacement toward the second locking member, and the locking pile platform is disposed on the first locking member.
Preferably, the second locking member is provided with a pre-installation boss which is used for being matched with the second connecting seat body in an opposite way, the first locking member is connected in the second connecting seat body in a sliding way, the second connecting seat body is provided with a limiting groove part which is used for limiting the first locking member, and the first locking member is provided with the exposed driving end which penetrates through the limiting groove part and is exposed.
Preferably, a sliding fit guiding portion is provided between the first locking member and the second connection seat.
Preferably, the second connecting seat body is an elbow connecting seat.
The utility model has the following beneficial effects:
1. the adoption possesses the elasticity pipe box that cracks and the cooperation of taper cylinder, can realize relative displacement and reset, satisfies quick lock solid and separation demand, has replaced traditional locking structure's spring function, has simplified locking structure, has reduced the equipment degree of difficulty, maintains simultaneously that the tight fit life obtains effectively prolonging.
2. The requirement of relatively accurate direction is satisfied, and the locking stability obtains further promotion, and the operation of installing, removing is more smooth high-efficient simultaneously.
3. The locking structure is particularly suitable for the elbow connector, occupies a small space, can provide circumferential movable displacement and has the advantage of high cost.
Detailed Description
The utility model provides a locking structure for a connector. The technical solution of the present invention is described in detail below with reference to the accompanying drawings so that it can be more easily understood and appreciated.
A locking structure for a connector, as shown in fig. 1 to 5, includes a first connecting seat body 1 and a second connecting seat body 2, a shaft coupling mechanism 3 for axial butt joint is disposed between the first connecting seat body and the second connecting seat body, the shaft coupling mechanism 3 includes a first shaft sleeve 31 disposed on the first connecting seat body 1 and a second shaft sleeve 32 disposed on the second connecting seat body 2 and penetrating into the first shaft sleeve 31, and a free end of the first shaft sleeve 31 is provided with a locking boss 4 along a radial outer edge.
The second connecting seat body 2 is internally provided with a first locking piece 5 and a second locking piece 6 which have relative displacement, the first locking piece 5 is provided with an elastic pipe sleeve 7 which is provided with paired radial slits 70, and the second locking piece 6 is provided with a tapered cylinder 8 which is used for being penetrated in the elastic pipe sleeve 7.
The locking boss 4 is provided with a limiting annular end face 40 deviating from one side of the second connecting seat body 2, the first locking piece 5 or the second locking piece 6 is provided with a locking pile platform 9 axially matched with the limiting annular end face 40, and the first locking piece or the second locking piece where the locking pile platform 9 is located is provided with an exposed driving end 10 exposed relative to the second connecting seat body 2.
The specific implementation process and principle description are as follows:
in the conventional connector, the first shaft sleeve 31 and the second shaft sleeve 32 are matched relatively to realize axial matching and circumferential movable matching, and the locking block and the limiting annular end face 40 of the locking boss 4 are axially interfered by a spring, so that the axial matching and locking of the first connecting seat body and the second connecting seat body are realized.
In the scheme, the elastic pipe sleeve 7 with the paired radial slits 70 is matched with the conical cylinder 8 to realize relative elastic control, in the relative displacement process of the elastic pipe sleeve 7 and the conical cylinder 8, the elastic pipe sleeve 7 can realize relative displacement drive of the elastic pipe sleeve 7 and the conical cylinder 8 through the exposed driving end 10 due to the radial slits 70, the conical cylinder 8 can expand the elastic pipe sleeve 7 so as to meet the relative displacement requirement, and at the moment, the locking pile platform 9 is axially separated from the limiting annular end surface 40 so as to meet the requirement of quick assembly, disassembly and assembly; when the external force of the exposed driving end 10 is released, the slit 70 of the elastic pipe sleeve 7 is contracted to force the two to be relatively separated, and at the moment, the locking pile platform 9 and the limiting annular end face 40 are axially locked relatively.
In the present case, the locking pile platform 9 has an arc-shaped matching section 90 matched with the limiting annular end surface 40, so that the requirement of relative matching axial locking stability is met.
The main point of the present invention is to adopt a matching structure of the elastic tube sleeve 7 and the tapered cylinder 8 to replace the traditional spring expansion, so as to reduce the structural cost and increase the matching stability.
Wherein, the elastic pipe sleeve 7 and the cone-shaped cylinder 8 can also adopt other deformation structures matched elastically, such as: an elastic pipe sleeve 7 with a single radial slit 70 is matched with a conical cylinder 8; an elastic body with a concave section is matched with the conical main body 8; the elastic body with a concave section is matched with the flat cone, and the like.
The elastic fitting structure is not exhaustive, and both the improved structure of the elastic pipe sleeve 7 and the tapered cylinder 8 and the elastic fitting structure satisfying the same function are within the protection scope of the present application.
Example one
As shown in fig. 1 and 2, the first locking member 5 is fixedly disposed in the second connection housing 2, the second locking member 6 has a relative displacement toward the first locking member 5, and the locking pile base 9 is disposed on the second locking member 6.
Specifically, the exposed driving end 10 drives the second locking member 6 to move towards the first locking member 5, the elastic pipe sleeve 7 of the first locking member 5 is elastically expanded, the locking pile platform 9 is separated from the locking boss 4 at the moment, the requirement of quick assembly and disassembly is met, when the exposed driving end 10 is released, the conical cylinder 8 of the second locking member 6 is reset by the deformation restoring force of the elastic pipe sleeve 7, and the locking pile platform 9 is in locking fit with the limiting annular end face 40 at the moment.
The embodiment can be optimized, the first locking member 5 is provided with an alignment boss 51 for being aligned and matched with the second connecting seat body, the second locking member 6 is slidably matched in the second connecting seat body 2, the second connecting seat body is provided with a limiting portion 21 for limiting the second locking member, and the second locking member 6 is provided with an exposed driving end 10 which penetrates through the limiting portion 21 and is exposed. A plurality of guide parts 61 in sliding fit are arranged between the second locking piece 6 and the second connecting seat body.
Namely, the assembly precision of the first locking member 5 can be satisfied by the alignment boss 51, the linear displacement precision guidance of the second locking member 6 can be satisfied by the guide portion 61, the accurate alignment is realized, and the end position limiting and locking requirements of the exposed and locked state of the exposed driving end 10 can be satisfied by the limiting portion 21.
Example two
As shown in fig. 3 and 4, the second locking member 6 is fixedly disposed in the second connection housing 2, the first locking member 5 has a relative displacement toward the second locking member, and the locking stub is disposed on the first locking member.
The principle of operation is similar to that of the first embodiment, but the first locking element 5 and the second locking element 6 are arranged opposite each other, with the locking stub platform being located on the moving locking element.
The embodiment is optimized, the second locking member 6 is provided with a pre-installation boss 62 which is used for being matched with the second connecting seat body in a relative position, the first locking member 5 is connected in the second connecting seat body in a sliding manner, the second connecting seat body is provided with a limiting groove portion 22 which is used for limiting the first locking member, and the first locking member 5 is provided with the exposed driving end 10 which penetrates through the limiting groove portion and is exposed. A sliding guide 52 is provided between the first locking member 5 and the second coupling housing 2.
The principle of the method is similar to that of the first embodiment, the alignment guide precision is increased, and the requirement on operation stability is met.
In one embodiment, as shown in fig. 1 to 5, the second connecting housing 2 is an elbow connecting housing.
Specifically, the elbow connecting seat provides a carrying space of the locking structure, and meets carrying and assembling requirements of the locking structure, and meanwhile, the locking structure only provides axial locking operation, and meets circumferential movement requirements after the elbow connecting seat is axially and tightly connected.
Through the above description, it can be found that the locking structure for the connector of the utility model adopts the elastic pipe sleeve with the slit to be matched with the tapered cylinder, so that the relative displacement and the reset can be realized, the requirements of quick locking and separation are met, the spring function of the traditional locking structure is replaced, the locking structure is simplified, the assembly difficulty is reduced, and the service life of the tight fit is maintained to be effectively prolonged. The requirement of relatively accurate direction is satisfied, and the locking stability obtains further promotion, and the operation of installing, removing is more smooth high-efficient simultaneously. The locking structure is particularly suitable for the elbow connector, occupies a small space, can provide circumferential movable displacement and has the advantage of high cost.
The technical solutions of the present invention are fully described above, it should be noted that the specific embodiments of the present invention are not limited by the above description, and all technical solutions formed by equivalent or equivalent changes in structure, method, or function according to the spirit of the present invention by those skilled in the art are within the scope of the present invention.