CN201428673Y

CN201428673Y - Novel extension tube

Info

Publication number: CN201428673Y
Application number: CN2009201242746U
Authority: CN
Inventors: 徐建群
Original assignee: Zhejiang Huaguang Electric Appliance Group Co Ltd
Current assignee: Zhejiang Huaguang Electric Appliance Group Co Ltd
Priority date: 2009-07-08
Filing date: 2009-07-08
Publication date: 2010-03-24
Anticipated expiration: 2019-07-08

Abstract

The utility model discloses a novel extension tube which includes an outer tube, an inner tube and a locking device; the inner tube can extend into the outer tube and axially slide along the inner wall of the outer tube; the locking device is used for controlling the slide of the inner tube and includes an inner tube clamping mechanism and an outer tube clamping mechanism, wherein the outer tube clamping mechanism is sleeved and connected with an end head of the outer tube and used for fixing the locking device, the locking device controls the axial slide of the inner tube through the inner tube clamping mechanism, and the outer tube clamping mechanism and the inner tube clamping mechanism are connected into a whole through an annular step structure; and the upper end surface of the outertube is propped against the lower end surface of the annular step structure. The locking device has simple structure and convenient operation, the connection between the locking device and the outer tube as well as the function of clamping the inner tube can be realized through simple rotary-type operation, and the inner tube clamping effect is good.

Description

A kind of novel telescopic pipe

Technical field

The utility model relates to a kind of telescopic pipe, especially a kind of novel telescopic pipe that is used on the equipment such as hanging ironing machine.

Background technique

The telescopic pipe that hanging ironing machine was equipped with on the market is of a great variety now, and wherein a fraction of telescopic pipe can't be flexible arbitrarily according to user's wish, and practicability is low; And most of telescopic pipe all is to be socketed to form mutually by managing in an outer tube and one, interior pipe outer tube relatively is flexible, also be provided with locking device between interior pipe and outer tube, though can arbitrarily stretch, but its locking device structure complexity, the material great majority adopt working of plastics, so are easy to produce distortion and cause locking dynamics instability, can't hang heavier clothing; And in actual use, interior pipe and outer tube can not keep good coaxality, therefore in pipe stretch out with retraction process in block often, use to the user and brought inconvenience, reduced the working life of telescopic pipe.

Summary of the invention

Problem to be solved in the utility model is exactly the shortcoming at prior art, a kind of novel telescopic pipe easily simple in structure, novel in design, flexible is provided, can regulate flexible distance according to actual needs arbitrarily, and can provide reliable and stable coupling mechanism force for telescopic pipe, user-friendly.

In order to solve the problems of the technologies described above, the utility model adopts following technological scheme: a kind of novel telescopic pipe, comprise outer tube, stretch into the locking device that also can manage and be used to control interior pipe slip in the outer tube along outer tube wall in axial sliding, it is characterized in that: tight mechanism of pipe clamp and outer tube clamping mechanism in described locking device comprises, the outer tube clamping mechanism is socketed in the outer tube termination and is used for fixing locking device, and locking device endwisely slips by pipe in the tight mechanism controls of interior pipe clamp.

Further, described outer tube clamping mechanism and interior pipe clamp are tightly inter-agency connects as one the lower end surface of the upper-end surface apical grafting circular step structure of outer tube by the circular step structure.

Further, the tight mechanism of pipe clamp comprises that annular is arranged on several the interior pipe clamp bars on the circular step structure upper-end surface in described, pipe locking knob in the bottom of interior pipe clamp bar spins, the upper end of interior pipe clamp bar be provided with along interior tubular axis heart direction tilt domatic, the inwall of interior pipe locking knob is provided with and described domatic corresponding inclined-plane.

Preferably, the inner side surface of described interior pipe clamp bar is provided with rubber layer, the frictional force in increasing between pipe clamp bar and interior pipe, and the locking effect of pipe is better in making.

Further, described outer tube clamping mechanism comprises that annular is arranged on several outer tube card articles on the circular step structure lower end surface, the bottom of the outer tube card article outer tube locking knob that spins, the upper end of outer tube card article be provided with along the outer tube axis direction tilt domatic, the inwall of outer tube locking knob is provided with and described domatic corresponding inclined-plane.

Further, the guide pipe that is connected with interior pipe axially is set in the described outer tube, guide pipe comprises minor diameter part of riveting with inner pipe wall and the large-diameter portion that cooperates installation with outer tube wall, and the joint of large-diameter portion and minor diameter part is provided with a step surface, the lower end surface of pipe in this step surface apical grafting.Coaxality in being provided with of guide pipe can well guarantee between pipe and outer tube, more smooth and easy when pipe is flexible in making, also prolonged working life of telescopic pipe.

Preferably, the inner side surface of described outer tube card article is provided with dop, and corresponding dop place is provided with opening on outer tube wall, and dop is connected to and is used to limit locking device in the opening and endwisely slips.

Preferably, between inner pipe wall and outer tube wall axial clearance is set, under the effect of outer tube locking knob, the step surface of the front end of dop blocking guide pipe in outer tube wall stretches into axial clearance.Dop has not only played the restriction locking device and has acted in axial sliding, when step surface slides into the dop place with interior pipe, because of the blocking that is subjected to dop can't continue to slide, thereby has guaranteed that interior Guan Buhui is extracted out in outer tube by malice.

Advantage of the present utility model: locking device structure of the present utility model is simple, and is easy to operate, by simple rotary manipulation can realize being connected of locking device and outer tube and tighten in the function of pipe, interior pipe clamp is tightly effective; Being arranged so that between outer tube and interior pipe of guide pipe can keep good coaxality in the outer tube, can not shake during use, and the sliding effect of pipe is better in making, and Guan Buhui was extracted out in outer tube by malice in the mating reaction between guide pipe and locking device can also prevent.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further described:

Fig. 1 is that slip-tube shaft of the present utility model is to generalized section;

Fig. 2 is the enlarged view at I place among Fig. 1;

Fig. 3 is an A-A sectional drawing among Fig. 1;

Fig. 4 is a B-B sectional drawing among Fig. 1;

Fig. 5 is the enlarged view at II place among Fig. 1.

Embodiment

As shown in Figure 1, the utility model is a kind of novel telescopic pipe, comprise outer tube 1, stretch in the outer tube 1 and can along outer tube 1 inwall in axial sliding in pipe 2 and be used to control in the locking devices that slide of pipe 2, tight mechanism of pipe clamp and outer tube 1 clamping mechanism in described locking device comprises, be socketed in outer tube 1 termination by outer tube clamping mechanism and bindiny mechanism, outer tube clamping mechanism and interior pipe clamp are tightly inter-agency to connect as one by circular step structure 3, the lower end surface of the upper-end surface apical grafting circular step structure 3 of outer tube 1, the outer tube clamping mechanism is socketed in outer tube 1 termination and is used for fixing locking device, and locking device endwisely slips by pipe 2 in the tight mechanism controls of interior pipe clamp.Wherein the preferred structure of each mechanism is as follows:

As shown in Figure 2, described bindiny mechanism is the circular step structure 3 that is located between interior tight mechanism of pipe clamp and the outer tube clamping mechanism, the lower end surface of the upper-end surface apical grafting circular step structure 3 of outer tube 1.In conjunction with Fig. 2 and Fig. 3, the tight mechanism of pipe clamp comprises that annular is arranged on several the interior pipe clamp bars 31 on circular step structure 3 upper-end surfaces in described, the bottom of interior pipe clamp bar 31 by be provided with screw thread spin in the pipe locking knob, the upper end of interior pipe clamp bar 31 is provided with along domatic 312 of interior tubular axis heart direction inclination, the inwall of interior pipe locking knob is provided with and described domatic 312 corresponding inclined-planes 51, inclined-plane 51 mutually internally the inclination of the tubular axis heart should be a bit larger tham domatic 312 inclination, pipe clamp bar 31 in the pipe locking knob tightens up in helping; The inner side surface of interior pipe clamp bar 31 can be provided with rubber layer 311, increases the frictional force of 2 of interior pipe clamp bar 31 and interior pipes, and the locking effect of pipe 2 is better in making.

In conjunction with Fig. 2 and Fig. 4, described outer tube clamping mechanism comprises that annular is arranged on several outer tube card articles 32 on circular step structure 31 lower end surfaces, the bottom of outer tube card article 32 is by being provided with the screw thread outer tube locking knob 6 that spins, the upper end of outer tube card article 32 be provided with along the outer tube axis direction tilt domatic 321, the inwall of outer tube locking knob 6 is provided with and described domatic 321 corresponding inclined-planes 61.In like manner the inclination in these 61 relative outer tube axle center, inclined-plane should be a bit larger tham this 321 domatic inclinations, helps outer tube locking knob 6 and tightens up outer tube card article 32.

As shown in Figure 5, the guide pipe 4 that is connected with interior pipe 2 axially is set in the outer tube 1, guide pipe 4 comprises minor diameter part 41 of riveting with interior pipe 2 tube walls and the large-diameter portion 42 that cooperates installation with outer tube 1 inwall, large-diameter portion 42 is provided with a step surface 43 with the joint of minor diameter part 41, the lower end surface of pipe 2 in these step surface 43 apical graftings.The coaxality of

pipe

2 and 1 of outer tube was more smooth and easy when pipe 2 stretches in making in being provided with of guide pipe 4 can well guarantee, had also prolonged the working life of telescopic pipe.In conjunction with Fig. 4 and Fig. 5, the inner side surface of described outer tube card article 32 is provided with dop 34, and corresponding dop 34 places are provided with opening 11 on outer tube 1 tube wall, and dop 34 is connected to and is used to limit endwisely slipping of locking device in the opening 11.Between interior pipe 2 tube walls and outer tube 1 tube wall axial clearance 44 is set, under the effect of outer tube locking knob 6, the front end of dop 34 stretches into the step surface 43 of blocking guide pipe 4 in the axial clearance 44 through outer tube 1 tube wall.Dop 34 has not only played the restriction locking device and has acted in axial sliding, and when step surface 43 slides into dop 34 places with interior pipe 2, because of the blocking that is subjected to dop 34 can't continue to slide, thereby has guaranteed that interior Guan Buhui is extracted out in outer tube by malice.

When in the user need adjust, managing the position, pipe locking knob in only needing upwards to screw out, interior pipe clamp bar loosens, and interior pipe gets final product smooth and easy slip, after adjustment finishes, pipe locking knob in being screwed down again, interior pipe can be tightly fixing, can reach the fundamental function of telescopic pipe by simple rotary operation, and latching force is strong, good stability, can hang heavier clothing, use to the user and brought convenience.

The foregoing description is to explanation of the present utility model, is not to qualification of the present utility model, any structure after the utility model simple transformation is all belonged to protection domain of the present utility model.

Claims

1, a kind of novel telescopic pipe, comprise outer tube (1), stretch in the outer tube (1) and also can manage (2) in axial sliding and be used to control the locking device that interior pipe (2) slides along outer tube (1) inwall, it is characterized in that: tight mechanism of pipe clamp and outer tube clamping mechanism in described locking device comprises, the outer tube clamping mechanism is socketed in outer tube (1) termination and is used for fixing locking device, and locking device endwisely slips by pipe (2) in the tight mechanism controls of interior pipe clamp.

2, a kind of novel telescopic pipe according to claim 1, it is characterized in that: described outer tube clamping mechanism and interior pipe clamp are tightly inter-agency to connect as one the lower end surface of the upper-end surface apical grafting circular step structure (3) of outer tube (1) by circular step structure (3).

3, a kind of novel telescopic pipe according to claim 2, it is characterized in that: the tight mechanism of pipe clamp comprises that annular is arranged on several the interior pipe clamp bars (31) on circular step structure (3) upper-end surface in described, pipe locking knob (5) in the bottom of interior pipe clamp bar (31) spins, the upper end of interior pipe clamp bar (31) is provided with along domatic (312) of the inclination of interior pipe (2) axis direction, and the inwall of interior pipe locking knob (5) is provided with the inclined-plane (51) corresponding with described domatic (312).

4, a kind of novel telescopic pipe according to claim 3 is characterized in that: the inner side surface of pipe clamp bar (31) is provided with rubber layer (311) in described.

5, a kind of novel telescopic pipe according to claim 2, it is characterized in that: described outer tube clamping mechanism comprises that annular is arranged on several outer tube card articles (32) on circular step structure (3) lower end surface, the bottom of outer tube card article (32) the outer tube locking knob (6) that spins, the upper end of outer tube card article (32) is provided with along domatic (321) of the inclination of outer tube (1) axis direction, and the inwall of outer tube locking knob (6) is provided with the inclined-plane (61) corresponding with described domatic (321).

6, a kind of novel telescopic pipe according to claim 5, it is characterized in that: the guide pipe (4) that is connected with interior pipe (2) axially is set in the described outer tube (1), guide pipe (4) comprises minor diameter part (41) of riveting with interior pipe (2) tube wall and the large-diameter portion (42) that cooperates installation with outer tube (1) inwall, large-diameter portion (42) is provided with a step surface (43) with the joint of minor diameter part (41), the lower end surface of pipe (2) in this step surface apical grafting.

7, a kind of novel telescopic pipe according to claim 6, it is characterized in that: the inner side surface of described outer tube card article (32) is provided with dop (33), corresponding dop (33) locates to be provided with opening (11) on outer tube (1) tube wall, and dop (33) is connected to and is used to limit locking device in the opening (11) and endwisely slips.

8, a kind of novel telescopic pipe according to claim 7, it is characterized in that: between interior pipe (2) tube wall and outer tube (1) tube wall axial clearance (44) is set, under the effect of outer tube locking knob (6), the front end of dop (33) stretches into the step surface (43) of blocking guide pipe (4) in the axial clearance (44) through outer tube (1) tube wall.