CN205654669U

CN205654669U - A telescopic tube structure

Info

Publication number: CN205654669U
Application number: CN201620136391.4U
Authority: CN
Inventors: 温文辉
Original assignee: Zhongshan Baoyi Hardware Plastic Product Co ltd
Current assignee: Zhongshan Baoyi Hardware Plastic Product Co ltd
Priority date: 2016-02-23
Filing date: 2016-02-23
Publication date: 2016-10-19
Anticipated expiration: 2026-02-23

Abstract

The utility model provides a telescopic pipe structure, which comprises a large telescopic pipe and a small telescopic pipe, wherein the connecting end of the large telescopic pipe and the small telescopic pipe is provided with a connecting and locking component, and the connecting and locking component comprises an outer joint, an inner joint and an elastic bolt; the outer joint is connected with the end part of the large telescopic pipe, and the inner side wall of the inner end of the outer joint is provided with an eccentric inner arc surface; one end of the small telescopic pipe penetrates through the outer joint, the end part of the small telescopic pipe is provided with an inner joint, and the circumferential side wall of the inner joint is provided with an eccentric outer arc surface; the elastic bolt is arranged in the inner joint, and two ends of the elastic bolt extend out of the eccentric outer arc surface of the inner joint; when the locking is carried out, the inner joint is clamped into the outer joint and rotates along with the small telescopic pipe, the eccentric outer arc surface of the inner joint is tightly connected with the eccentric inner arc surface of the outer joint, and two ends of the elastic bolt are connected with the eccentric inner arc surface of the outer joint. Can realize the locking and the loosening of flexible pipe fast like this, locking is firm, not the pine takes off, easy operation, light, convenient, feels, and simple structure, and the production and processing is easy, with low costs, and market competition is strong.

Description

A kind of flexible pipe structure

[technical field]

This utility model belongs to telescoping tube technical field, particularly to a kind of flexible pipe structure.

[background technology]

At present, on market, existing telescoping tube (such as the foot tube of photography and vedio recording foot rest) is all to include big telescoping tube and little telescoping tube, and between it, be provided with locking inner ring, locking outer ring and plastic cement part, and realize locking by the screw thread compressing plastic cement part arranged in locking inner ring and locking outer ring.But this structure or easily occurring loosening after using locking causes falling the problem of foot, or easily " locked " occurs, locking state is difficult to control to, and uses extremely inconvenient.

[utility model content]

In order to solve above-mentioned technical problem present in prior art, this utility model provides and a kind of can quickly realize the locking of telescoping tube and unclamp, during locking the most firmly, do not get loose, simple to operate, light, convenient, good hand touch, and simple in construction, production and processing is easy, low cost, the flexible pipe structure that the market competitiveness is extremely strong.

The technical scheme that this utility model solution prior art problem is used is:

A kind of flexible pipe structure, includes big telescoping tube and little telescoping tube that adjacent expansion connects, and it is connected with each other end and is provided with connection latch assembly, and described connection latch assembly includes coupling, nipple and resilient pin；Wherein, described coupling is tubular configured joint, is connected with the end of big telescoping tube, and the inside side walls of its inner is provided with eccentric inner arc surface；One end of described little telescoping tube passes coupling, and end is provided with nipple, and the circumferential side wall of described nipple is provided with eccentric excircle cambered surface；Described resilient pin is laterally located in nipple, and its two ends are stretched out from the eccentric excircle cambered surface of nipple；When elongation locking, described nipple snaps in coupling, and rotates with little telescoping tube, its eccentric excircle cambered surface and the eccentric inner arc surface compact siro spinning technology of coupling, and the two ends of resilient pin are connected with the eccentric inner arc surface of coupling.

Further, described eccentric inner arc surface has two, and is relatively located in the inside side walls of coupling, and described eccentric inner arc surface is made up of multiple fore-and-aft planes being sequentially connected with.

Further, described resilient pin includes that left latch, right pin and spring, the right-hand member of described left latch are provided with installing hole, and described spring is located in installing hole, in the left end of described right pin inserts installing hole and is connected with spring；The described left end of left latch and the right-hand member of right pin stretch out from the eccentric excircle cambered surface of nipple and are connected with the eccentric inner arc surface of coupling when locking.

Further, the described left end of left latch and the right-hand member of right pin are respectively equipped with the left spherical portion of projection and right spherical portion, described left spherical portion and right spherical portion are stretched out from the through hole that the eccentric excircle cambered surface of nipple is provided with and are connected with the eccentric inner arc surface of coupling when locking.

Further, described installing hole and left spherical portion are one-body molded with left latch, and described right spherical portion is one-body molded with right pin.

Further, one end that described big telescoping tube is connected with coupling is provided with connection card base, and the position of corresponding eccentric inner arc surface is provided with and dodges breach, and the inside side walls of described coupling is provided with installation draw-in groove；During assembling, described connection card base insert, be stuck in installation draw-in groove in, and locking time described nipple eccentric excircle cambered surface by dodging breach and compact siro spinning technology.

Further, all side surfaces of described nipple are additionally provided with the rotation confinement block of projection, and described rotation confinement block is located in installation draw-in groove actively, and move back and forth at installation draw-in groove with the rotation of little telescoping tube.

Further, described rotation confinement block is one-body molded with nipple.

Further, the external diameter of described rotation confinement block place circle is more than the internal diameter of coupling.

Further, the inner surface of described big telescoping tube is provided with longitudinally convex rib, and described longitudinally convex rib is positioned at dodges above breach and lower end extends to dodge breach；Accordingly, the circumferential side wall of described nipple is additionally provided with longitudinal draw-in groove, and described longitudinal draw-in groove is in eccentric excircle cambered surface and rotates between confinement block and matches with longitudinally convex rib；When locked, rotation confinement block is withstood in the lower end of described longitudinally convex rib, and upon its release, described longitudinally convex rib snaps in longitudinal draw-in groove.

The beneficial effects of the utility model are as follows:

This utility model passes through technique scheme, can quickly realize the locking of telescoping tube and unclamp, and during locking the most firmly, do not get loose, operate the simplest, light, convenient, fast, be greatly improved operating handle, and simple in construction by arranging resilient pin simultaneously, production and processing is easy, assembling is simple, and production cost substantially reduces, and the market competitiveness is extremely strong.

[accompanying drawing explanation]

Fig. 1 is the detonation configuration schematic diagram of a kind of flexible pipe structure embodiment described in the utility model；

Fig. 2 is the perspective structure schematic diagram of a kind of flexible pipe structure embodiment described in the utility model.

[detailed description of the invention]

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.

As shown in Fig. 1 to Fig. 2:

This utility model embodiment provides a kind of flexible pipe structure, include big telescoping tube 1 and little telescoping tube 2 that adjacent expansion connects, and it is connected with each other end and is provided with connection latch assembly 3, described connection latch assembly 3 includes coupling 31, nipple 32 and resilient pin 33；Wherein, described coupling 31 is tubular configured joint, is connected with the end of big telescoping tube 1, and the inside side walls of its inner is provided with eccentric inner arc surface 311；One end of described little telescoping tube 2 passes coupling 31, and end is provided with nipple 32, and the circumferential side wall of described nipple 32 is provided with eccentric excircle cambered surface 321；Described resilient pin 33 is laterally located in nipple 32, and its two ends are stretched out from the eccentric excircle cambered surface 321 of nipple 32.Concrete structure can be:

One end that described big telescoping tube 1 is connected with coupling 31 is provided with connection card base 11, and the position of corresponding eccentric inner arc surface 311 is provided with and dodges breach 12, and the inside side walls of described coupling 31 is provided with installation draw-in groove 312；During assembling, described connection card base 11 inserts, be stuck in installation draw-in groove 312, and when locking the eccentric excircle cambered surface 321 of nipple 32 by dodging breach 12 and eccentric inner arc surface 311 compact siro spinning technology；Wherein, described eccentric inner arc surface 311 has two, and is relatively located in the inside side walls of coupling 31, and eccentric inner arc surface 311 is made up of multiple fore-and-aft planes being sequentially connected with.Described resilient pin 33 includes left latch 331, right pin 332 and spring 333, the right-hand member of described left latch 331 is provided with installing hole 334, described spring 333 is located in installing hole 334, in the left end of described right pin 332 inserts installing hole 334 and is connected with spring 333；The left end of described left latch 331 and the right-hand member of right pin 332 stretch out from the eccentric excircle cambered surface 321 of nipple 32 and are connected with the eccentric inner arc surface 311 of coupling 31 when locking；And the left left end of latch 331 and the right-hand member of right pin 332 are respectively equipped with the left spherical portion 335 of projection and right spherical portion 336, described installing hole 334 and left spherical portion 335 are one-body molded with left latch 331, described right spherical portion 336 is one-body molded with right pin 332；Described left spherical portion 335 and right spherical portion 336 are stretched out from the through hole 322 that the eccentric excircle cambered surface 321 of nipple 32 is provided with and are connected with the eccentric inner arc surface 311 of coupling 31 when locking.

When telescopic tube is locked, first dynamic little telescoping tube 2 is pulled out, and allow nipple 32 snap in coupling 31, then little telescoping tube 2 is rotated, make nipple 32 rotate with little telescoping tube 2 and make the eccentric excircle cambered surface 321 of nipple 32 and eccentric inner arc surface 311 compact siro spinning technology of coupling 31, the two ends of resilient pin 33 are connected with the eccentric inner arc surface 311 of coupling 31 simultaneously, and slide on eccentric inner arc surface 311 surface with nipple 32.When telescoping tube unclamps retraction, first little telescoping tube 2 is rotated backward, the eccentric excircle cambered surface 321 of nipple 32 is made to unclamp with the eccentric inner arc surface 311 of coupling 31, separate, then little telescoping tube 2 is promoted to big telescoping tube 1, nipple 32 is made to separate with coupling 31, can be by the retraction of little telescoping tube 2 in big telescoping tube 1.

So, by using flexible pipe structure described in the utility model can quickly realize the locking of telescoping tube and unclamp, and during locking the most firmly, do not get loose, operate the simplest, light, convenient, fast, be greatly improved operating handle, and simple in construction by arranging resilient pin 33 simultaneously, production and processing is easy, assembling is simple, and production cost substantially reduces, and the market competitiveness is extremely strong.

Additionally, all side surfaces of described nipple 32 are additionally provided with the rotation confinement block 323 of projection, described rotation confinement block 323 is one-body molded with nipple 32, and be located at actively in installation draw-in groove 312, and with little telescoping tube 2 rotate install draw-in groove 312 move back and forth, the external diameter simultaneously rotating confinement block 323 place circle is more than the internal diameter of coupling 31, blocks nipple 32 and does not falls down.Such that can avoid, because the little telescoping tube of inordinate rotation 2 causes the situation of " locked ", using more convenient, more reliable.

As this utility model one preferred version, the inner surface of described big telescoping tube 1 is provided with longitudinally convex rib 13, and described longitudinally convex rib 13 is positioned at dodges above breach 12 and lower end extends to dodge breach 12；Accordingly, the circumferential side wall of described nipple 32 is additionally provided with longitudinal draw-in groove 324, and described longitudinal draw-in groove 324 is in eccentric excircle cambered surface 321 and rotates between confinement block 323 and matches with longitudinally convex rib 13.When locked, rotation confinement block 323 is withstood in the lower end of described longitudinally convex rib 13, is prevented effectively from nipple 32 and moves upward, spins off from coupling 31, and locking effect is strengthened further；Upon its release, longitudinally convex rib 13 just snaps in longitudinal draw-in groove 324, and nipple 32 can move upward and separate with coupling 31.

Above content is to combine concrete optimal technical scheme further detailed description of the utility model, it is impossible to assert that of the present utility model being embodied as is confined to these explanations.For this utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, it is also possible to make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.

Claims

1. A telescoping tube structure, characterized in that: comprise a large telescoping tube (1) and a small telescoping tube (2) adjacent telescopically connected, and its interconnecting ends are provided with a connection locking assembly (3), the The connection locking assembly (3) includes an outer joint (31), an inner joint (32) and an elastic bolt (33); wherein, the outer joint (31) is a tubular joint connected to the end of the large telescopic tube (1) , and the inner side wall of its inner end is provided with an eccentric inner arc surface (311); one end of the small telescopic tube (2) passes through the outer joint (31), and the end is provided with an inner joint (32), the described The circumferential side wall of the inner joint (32) is provided with an eccentric outer arc surface (321); the elastic latch (33) is horizontally arranged in the inner joint (32), and its two ends are connected from the inner joint (32) The eccentric outer arc surface (321) protrudes; when the elongation is locked, the inner joint (32) snaps into the outer joint (31) and rotates with the small expansion tube (2), and its eccentric outer arc surface (321) is closely connected with the eccentric inner arc surface (311) of the outer joint (31), and the two ends of the elastic bolt (33) are connected with the eccentric inner arc surface (311) of the outer joint (31).

2. The telescopic tube structure according to claim 1, characterized in that: there are two eccentric inner arc surfaces (311), which are relatively arranged on the inner side wall of the outer joint (31), and the said The eccentric inner arc surface (311) is composed of a plurality of longitudinal planes connected in sequence.

3. The telescopic tube structure according to claim 1 or 2, characterized in that: the elastic pin (33) includes a left pin (331), a right pin (332) and a spring (333), and the left pin (331 ) is provided with a mounting hole (334), the spring (333) is located in the mounting hole (334), and the left end of the right latch (332) is inserted into the mounting hole (334) and connected with the spring (333) ; The left end of the left bolt (331) and the right end of the right bolt (332) stretch out from the eccentric outer arc surface (321) of the inner joint (32), and when locked with the eccentric inner joint (31) Arc surface (311) is connected.

4. The telescopic tube structure according to claim 3, characterized in that: the left end of the left bolt (331) and the right end of the right bolt (332) are respectively provided with a raised left spherical portion (335) and a right spherical portion (336), the left spherical portion (335) and the right spherical portion (336) protrude from the through hole (322) provided on the eccentric outer arc surface (321) of the inner joint (32), and when locked It is connected with the eccentric inner arc surface (311) of the outer joint (31).

5. The telescopic tube structure according to claim 4, characterized in that: the installation hole (334) and the left spherical part (335) are integrally formed with the left pin (331), and the right spherical part (336) is formed with the right The latch (332) is integrally formed.

6. The telescopic tube structure according to claim 1 or 2 or 4 or 5, characterized in that: one end of the large telescopic tube (1) connected to the outer joint (31) is provided with a connecting clip (11), and An avoidance notch (12) is provided at the position corresponding to the eccentric inner arc surface (311), and an installation card slot (312) is provided on the inner side wall of the outer joint (31); during assembly, the connecting card feet (11 ) is inserted and stuck in the installation slot (312), and when locked, the eccentric outer arc surface (321) of the inner joint (32) is tightly connected with the eccentric outer arc surface (321) through the avoidance gap (12).

7. The telescopic tube structure according to claim 6, characterized in that: the peripheral surface of the inner joint (32) is also provided with a raised rotation limiting block (323), and the rotation limiting block (323) is movable The ground is located in the installation slot (312), and moves back and forth in the installation slot (312) with the rotation of the small expansion tube (2).

8. The telescopic tube structure according to claim 7, characterized in that: the rotation limiting block (323) is integrally formed with the inner joint (32).

9. The telescopic tube structure according to claim 7, characterized in that: the outer diameter of the circle where the rotation limiting block (323) is located is larger than the inner diameter of the outer joint (31).

10. The telescopic tube structure according to claim 7, characterized in that: the inner surface of the large telescopic tube (1) is provided with longitudinal protruding ribs (13), and the longitudinal protruding ribs (13) are located at The avoidance notch (12) is above and the lower end extends to the avoidance notch (12); correspondingly, the circumferential side wall of the inner joint (32) is also provided with a longitudinal card slot (324), and the longitudinal card slot (324) It is located between the eccentric outer arc surface (321) and the rotation limiting block (323), and matches with the longitudinal protruding rib (13); when locked, the lower end of the longitudinal protruding rib (13) tops Hold the rotation limiting block (323), when loosened, the longitudinal protruding ribs (13) snap into the longitudinal slots (324).