CN2137305Y

CN2137305Y - Setting mechanism used within tube

Info

Publication number: CN2137305Y
Application number: CN 92232643
Authority: CN
Inventors: 黄德贤
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-09-05
Filing date: 1992-09-05
Publication date: 1993-06-30
Anticipated expiration: 2002-09-05

Abstract

The utility model discloses a fixed mechanism used within a hollow tube, comprising a supporting block, movable fixed blocks, and a connecting screw. The supporting block can be arranged in the tube and from cooperation with the inner wall of the hollow tube in an appropriate tightness. One end center of the supporting block is provided with a ladder-type notch with large outside and small inside. The similar ladder-type movable fixed blocks with just larger sizes can be arranged in the ladder-type notch. The ladder-type movable fixed blocks are connected in screw with the screw thread holes of the movable fixed blocks via the supporting block by the connecting screw. After the connecting screw is rotated, the movable fixed blocks can be driven to move in the supporting block. When the movable fixed blocks move in the supporting block, the two outer supporting parts of the supporting block support towards both sides, close with the inner wall of the hollow tube tightly, and thereby, be fixed in the tube.

Description

Setting mechanism used within tube

The utility model relates to a kind of pipe internal fixation structure of hollow tube.Applicable scope of the present utility model is fixed in it in hollow tube pipe earlier for using its pipe internal fixation structure, is connected with other object by pipe internal fixation structure of the present utility model again.

Though pipe internal fixation structure of the present utility model applicable to the circular cross section hollow tube, then has more the special demands and special benefit of its use for other hollow tube of non-circular section.

Another Applicable scope of the present utility model is for having the characteristic that can freely dismantle and make up between this hollow tube and its fastening, with general with welding or other affixed mode had the sort ofly is unfavorable for separating the characteristic of separating very big difference is arranged.The more important thing is that pipe internal fixation structure of the present utility model and hollow tube are connected in pipe, non-connection outside the pipe of hollow tube.

Linkage structure between general pipe and fastening is comparatively simple and easy, for example, can be provided with the screw section and be provided with the respective threads hole in fastening in pipe one end and get final product.But for the hollow tube of non-genus circular cross section, above-mentioned linkage structure is then inapplicable.Therefore, need to be connected the used hollow tube of object mutual connection and how to replace, or outside pipe, connect with pipe with other, or affixed with welding manner.Only aforesaid way will make the profile of making product be restricted, or influence outward appearance, or the dismountable combined characteristic of tool not.

Main purpose of the present utility model is to provide a kind of can be in the pipe of hollow tube affixed structure, so that be connected with fastening by this structure, makes it not influence the hollow tube outward appearance again, and all applicable for the hollow tube of pipe or non-pipe.

The pipe internal fixation structure of a kind of hollow tube provided by the utility model includes:

One supports piece, and boundary dimension is fit to the hollow hole of hollow tube, can insert in the pipe, with be mutually suitable the cooperating of degree of tightness between the hollow tube inwall, one end central authorities have the little trapezoidal recess of outer imperial palace, and the recess both sides form outer support part, are provided with a penetration hole in the body center that connects support part outside two; One movable fixed block, it is outer to form similarly but that size is big slightly is trapezoidal to the above-mentioned trapezoidal recess shape of piece that supports, and for engaging in the trapezoidal recess, its central authorities also have a tapped hole; One connecting screw rod, an end tool block flange has screw thread on the body of rod, and the tapped hole that this connecting screw rod can pass behind the penetration hole that supports piece with movable fixed block is spirally connected; The screw rod that is rotationally connected can move in supporting the trapezoidal recess of piece by drive activity fixed block, and when moving in it, the two outer support parts that support piece is supported to both sides, makes it to be close proximity to the hollow tube inwall, thereby it is fixed in the pipe.

Advantage of the present utility model is can support at the hollow tube inwall by pipe internal fixation structure of the present utility model and holds out against, and makes it closely affixed with hollow tube, is difficult for loosening.

Another advantage of the present utility model is that this structure only needs the rotation by wherein connecting screw rod, can reach with hollow tube affixed or loose from effect, make it the detachable characteristic with combination of tool, and operate simple and easy, convenient and rapid.

Now be described in detail as follows with regard to the specific embodiment of the utility model conjunction with figs.:

Fig. 1 is the three-dimensional exploded view of pipe internal fixation structure of the present utility model.

Fig. 2 is installed on the interior perspective view afterwards of hollow tube for pipe internal fixation structure of the present utility model.

Fig. 3 is the sectional view along the 3-3 hatching of Fig. 2 and the intercepting of arrow direction.

Fig. 4 is the further sectional view after the action of pipe internal fixation structure that is shown in Fig. 3.

Fig. 5 is the perspective view of an Application Example of the present utility model.

Fig. 6 is the sectional view along the 6-6 hatching of Fig. 5 and the intercepting of arrow direction.

See also Fig. 1, the pipe internal fixation structure of hollow tube of the present utility model consists predominantly of and supports piece 1, piston fixed block 2 and connecting screw rod 3.Wherein support the profile of piece 1, the hollow hole 41 that size all adapts to hollow tube 4, it can be inserted in this hollow tube, make it with hollow tube 4 inwalls between become the suitable cooperation of degree of tightness, these end central authorities that support piece have the little trapezoidal recess 11 of outer imperial palace, make its both sides form outer support part 12,12 ', in its

connect support part

12,12 outside two ' body 13 1 sides be provided with block flange 14, then be provided with a penetration hole 15 in body center.

Movable fixed block 2, it is outer to form to aforementioned trapezoidal recess 11 shapes are similar but that size is big slightly is trapezoidal, can supply to engage in this trapezoidal recess 11, and its central authorities also have a tapped hole 21.

Connecting screw rod 3, the one end has block flange 32, is shaped on screw thread on its body of rod 31.

See also Fig. 2 and Fig. 3, the above-mentioned piece 1 that supports is for inserting in the hollow hole 41 of hollow tube 4, movable fixed block 2 is for inserting in the

trapezoidal recess

11, and 3 confessions of connecting screw rod pass penetration hole 15 backs that support piece 1 and are spirally connected with the screw thread of its body of rod 31 and the tapped hole 21 of movable fixed block 2.The block flange 14 that supports piece 1 supports piece 1 for block and enters fully in the hollow hole 41 of hollow tube 4, makes it to be positioned hollow tube 4 one ends.32 block connecting screw rods 3 of the block flange of connecting screw rod 3 enter in the penetration hole 15 that supports piece 1 fully.Because connecting screw rod 3 makes it to be supported the block of piece by it is rotated so that movable fixed block 2 is moved to the recess that supports piece because of it has block flange 32.Be connected with fastening or the usefulness of location as for 16 confessions of two tapped holes that support piece 1 among the figure.In addition, be provided with groove 33 in the block flange 32 of connecting screw rod 3, instrument easy to use rotates this connecting screw rod 3.

See also Fig. 4, be depicted as when connecting screw rod 3 is rotated by tool operation, movable fixed block 2 can move inward, and supports two

outer support parts

12,12 of piece 1 ' just outwards support, and makes it near support in hollow tube 4 inwalls.As desire to make support piece 1 and hollow tube 4 pines from, then as long as backward rotation connecting screw rod 3, can make the purpose that can reach the dismounting separation by two

outer support parts

12,12 that support piece 1 ' movable fixed block 2 is extrapolated.

See also Fig. 5 and Fig. 6, use pipe internal fixation structure of the present utility model shown in the figure and " be fixed in the situation on the base 6 with movable swivel joint 5 connections and with below hollow tube 4 mutually in two hollow tube A, A '.As seen from Figure 6, pipe internal fixation structure of the present utility model can be fixed in hollow tube 4 ' lower end and following hollow tube 4 " upper/lower terminals according to Fig. 4 mode.Support 5 of piece 1 and movable swivel joints, pass movable swivel joint 5 by screw 7, fix with tapped hole 16 interlockings that support piece 1 then, make upper and lower two hollow tubes 4 ', 4 " can be connected with movable swivel joint 5 by pipe internal fixation structure of the present utility model, and then can make hollow tube 4 ' activity rotate to a desired location.

In addition, pipe internal fixation structure of the present utility model extends with then being to make connecting screw rod 3 ' extension being connected of 6 of bases, makes it tool one external thread part 34 and an instrument and rotates with hole 35, for the recess 62 that convexedly stretches in base 6, fixes with nut 36 interlockings again.The instrument rotation provides with the axostylus axostyle thing with 35 in hole and penetrates so that rotate it.In addition, " rotate the usefulness of doing the location with screw 7 through supporting top board 61 belows that piece 1 tapped hole 16 is spirally connected and convexedly stretches in base 6, for preventing down hollow tube 4.

Claims

1, a kind of pipe internal fixation structure of hollow tube includes:

One supports piece, and boundary dimension is fit to the hollow hole of hollow tube, can insert in the pipe, with be mutually suitable the cooperating of degree of tightness between the hollow tube inwall, one end central authorities have the little trapezoidal recess of outer imperial palace, and the recess both sides form outer support part, are provided with a penetration hole in the body center that connects support part outside two;

One movable fixed block, it is outer to form to the above-mentioned shape that supports the trapezoidal recess of piece is similar but that size is big slightly is trapezoidal, and for engaging in the trapezoidal recess, its central authorities also have a tapped hole;

One connecting screw rod, an end tool block flange has screw thread on the body of rod, and the tapped hole that this connecting screw rod can pass behind the penetration hole that supports piece with movable fixed block is spirally connected;

The screw rod that is rotationally connected can move in supporting the trapezoidal recess of piece by drive activity fixed block, and when moving in it, the two outer support parts that support piece is supported to both sides, makes it to be close proximity to the hollow tube inwall, thereby it is fixed in the pipe.