CN2030672U - Push-button type combined pipe connection for space frame - Google Patents

Abstract

The utility model discloses a push-button type combined pipe connection for a space frame which is formed by connecting with pipe fittings, comprising a socket (1) and a plug (3). The socket (1) is combined by a base body (1) and a jack (2), and the plug (3) whose size and shape are corresponding to the size and the shape of an external connecting pipe is integrally connected with the external connecting pipe beforehand. While in use, the plug (3) is inserted into the jack (2), so that the external connecting pipe (5) and the socket (1) can be integrally connected due to the push-button type matching which is formed by the intermeshing engagement of seaming flanges (9) (10). The utility model is applicable for the field of furniture, toys, etc.

Description

Push-button type combined pipe connection for space frame

The utility model is that a kind of pipe fitting that is used for connects to constitute the combination stud type pipe joint of various forms space frame structure.It applicable to furniture, children play all, the connection of store shelf, fence, building framework and other field tubular members.

Combination furniture always, steel wood furniture, store shelf etc. using pipe fitting to connect when constituting various space frame structure, use as methods such as welding, scyewed joint mostly, and workload is big, is not easy to on-the-spot use.As a kind of improved method, have to adopt to be pressed into to cooperate and connect, the insertion end that is about to pipe joint is squeezed in the externally connected pipe by force, the frictional force that contact stress caused of utilizing the magnitude of interference between externally connected pipe internal diameter and the pipe joint insertion end external diameter to produce joins pipe fitting and pipe joint together, assembles comparatively simple.But for being pressed into cooperation, so externally connected pipe and pipe joint all need precision machining, improved processing cost with the control magnitude of interference greatly, influenced its practicability because the tolerance of fit dimension is very strict.Improve one's methods as a kind of, open method shown in the clear 58-184367 just like the spy, promptly giving elder generation with a pair of triangular prism shaped jig with the alternate inner peripheral surface of convex-concave joins together with the insertion end that has the pipe joint of the alternate outer peripheral surface of convex-concave, insert externally connected pipe during use, and after it is reversed several angle, jig forms protruding one protruding relative situation with the insertion end surface of contact, jig diagonal size is enlarged, thereby externally connected pipe, jig, pipe joint three are pushed chimeric being integral, like this, externally connected pipe must not processed and can be used, and helps cost of production to reduce.But this method only is applicable to the connection of square tubular, can not widespread usage, therefore be necessary to propose the utility model as a kind of improvement.

The utility model is to utilize a pedestal and a plurality of combination of outlets to form various sockets, and give and earlier externally connected pipe and plug being joined together, during use, utilization is prepared in that seaming flange on socket and the plug is meshing with each other and the snap fit that forms and pipe fitting is unified into space frame structure, can overcome above-mentioned disadvantage.

At first, the resistance to plucking of snap fit is exerted oneself by mechanical interlocking and both generations of frictional force, its resistance to plucking is exerted oneself can be than the big hundred times of the power that is pressed into, therefore the power that is pressed into that need only be very little just can obtain very big resistance to plucking and exert oneself, institute is so that dismounting, and the resistance to plucking that is pressed into cooperation is exerted oneself then and is pressed into power and equates substantially.Secondly, because snap fit is assembled once end, contact stress disappears immediately, and it cooperates intensity can not reduce in time, connects reliable.Also have, adopt reasonably design, make the cantilever type snap-fastener as fluting on the insertion end of plug and cooperate, can reduce requirement quality of fit; As the plug fixed end being made size and the shape that adapts with externally connected pipe, externally connected pipe can be used without processing, cost of production is reduced greatly, the convenient use improved practicability.

Below, describe in detail by figure according to examples of implementation of the present utility model.

Figure 1 shows that the sectional view of examples of implementation of the utility model.Pedestal (1 ') utilizes screw (6) or other any methods to connect with socket (2) and combines socket (1), and the quantity of socket and orientation are selected as required flexibly; Externally connected pipe (5) is utilized screw (4) or other any methods to give earlier with plug (3) and is joined together, during use, as shown in the figure plug (3) is inserted in the socket (2), utilizes the seaming flange (9) (10) be prepared on socket (2) and the plug (3) to be meshing with each other and the snap fit that forms joins externally connected pipe (5) and socket (1) together.

Figure 2 shows that the shaft side figure of an example of pedestal (1 ').Pedestal (1 ') is a polyhedron, and its outer surface all can use as conjunction plane as required.Be illustrated as a regular hexahedron, (17) (18) (19) are selected conjunction plane, be processed with tapped hole (16) above, use the fastening last socket of screw (2) respectively, with regard to the socket of a corner connection three-way union of one-tenth capable of being combined, and also can be arbitrarily made with as four, five, six logical etc. as required.Certainly, but socket is also whole in whole or in part.

Figure 3 shows that the sectional view of an example of plug (3).Plug among the figure (3) is made up of insertion end (11) fixed end (13) and positioning ring (12).Insertion end (11) is shaped on seaming flange (10) and groove (22), fixed end (13) has groove (15), fin (21) is arranged on its outer surface, be screwed into screw (4) by tapped hole (14) during use and make fixed end (13) through expansion plug (3) and externally connected pipe (5) are connected into one outward.The effect of positioning ring (12) is the relative position of restriction plug (3) and externally connected pipe (5).For the purpose of attractive in appearance, its external diameter is identical with the external diameter of externally connected pipe (5).

Also have, the utility model can be made different shapes and size with the fixed end (13) of plug (3), so that link with different externally connected pipe.Externally connected pipe can be used without processing after blocking by length like this, has reduced cost of production, has improved practicability.Certainly, size and the shape for insertion end (11) then requires one to show its interchangeability of assurance.

The effect of groove (22) is to constitute tolerance the influence to cooperate of cantilever type snap-fastener cooperation to reduce seaming flange (10), is convenient to produce, to reduce cost.Groove (22) can not opened yet and is made hollow circle tube, and its rigidity can be improved in (23) as shown in Figure 1.

Figure 4 shows that the sectional view of an example of socket (2), its profile is cylindrical, or decide with the shape of externally connected pipe (5), (7) be the circular hole internal diameter, its size is greater than the external diameter of the last seaming flange (10) of plug (3), and (9) are the seaming flange of socket (2), and its internal diameter is slightly smaller than the external diameter of plug (3) seaming flange (10), a magnitude of interference is promptly arranged, be pressed into the size of power by the adjustable size joint of adjusting this magnitude of interference.The internal diameter of seaming flange (9) also should be greater than the external diameter of insertion end (11) in addition, and hole (8) are for connecting the through hole of pedestal (1 ').Also have,, can be screwed into the insertion end (11) that lock screw blocks plug (3) by tapped hole (20) if will limit the rotation of externally connected pipe (5).

In addition, connecting of pedestal in the utility model (1 ') and socket (2) and connecting of plug (3) and externally connected pipe (5) are not limited to screw attachment shown in Figure 1, and they can take any suitable joining method, as bonding etc.Certainly, the shape of its junction plane also can be done corresponding change.And socket (2) also can directly be fixed on wall, column etc. and locate, and inserts externally connected pipe (5) by plug (3) and constitutes various supports, as uses flexibly such as home-use drying racks.

Also have, the externally connected pipe described in the utility model (5), its shape can be circular, square or other Any shape, can be solid or hollow, and its material can be a metal or nonmetal.But, then require should have at least for socket (2) and plug (3) and a kind ofly make by elastic material.

In a word, pipe joint described in the utility model is flexible and changeable, can satisfy the requirement that various space frame structures connect pipe fitting by finite element such as pedestal, socket, the multiple combination of plug, make simple, be convenient to industrialized production, and external pipe fitting blocks the back and can use without processing, is widely used in the connection of furniture, toy, store shelf, fence, building framework and other field pipe fitting parts.

Claims (3)

1, the utility model is that a kind of pipe fitting that is used for connects to constitute the combination stud type pipe joint of space frame structure, it is characterized in that it is made up of socket (1) and plug (3) two-part, socket (1) comprises a polyhedron pedestal (1 ') and a plurality of socket (2) that has seaming flange (9): plug (3) comprises fixed end (13) and has the insertion end (11) of seaming flange (10), the available any method of fixed end (13) gives elder generation and externally connected pipe (5) is connected into one, during use insertion end (11) is inserted in the socket (2), utilizes seaming flange (9) (10) to be meshing with each other and the snap fit that forms joins externally connected pipe (5) together by socket (1).

2, press claim 1 described pipe joint, its feature also is should have at least in socket (2) and the plug (3) a kind ofly to be made by elastic material.

3, press claim 1 described pipe joint, it is characterized in that the size of fixed end (13) and shape can be different adapting to the needs of different external connection pipe, but the size of insertion end (11) and shape then require one to show and guarantee its interchangeability.

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