CN2598430Y

CN2598430Y - Telescopic support with self-locking locator

Info

Publication number: CN2598430Y
Application number: CNU032289057U
Authority: CN
Inventors: 史文国; 赵华仁
Original assignee: Ningbo Soundking Group Co ltd
Current assignee: Ningbo Soundking Group Co ltd
Priority date: 2003-02-19
Filing date: 2003-02-19
Publication date: 2004-01-14
Anticipated expiration: 2013-02-19

Abstract

The utility model discloses a telescopic support with self-locking locator, overcoming the defects of similar products such as a bigger force to be exerted, unstable location and inconvenient use during upward adjustment. The utility model comprises a shelf on the top, an inner pipe, an outer pipe and a base, and is characterized in that: the lower part of the inner pipe is provided with a self-lock locator supported by a gravity balancing spring; the self-lock locator comprises an inner pipe, an outer pipe and a hollow flexible part with one end in an olivary shape; a spring inner ring which is provided with a supporting rod. The product, after being installed with the balancing spring, exerts an upward bounce to the inner pipe and components attached on the top, which greatly reduces the force needed during upward adjustment and is more convenient to use. During downward shrinkage, the inner pipe shrinks more stably due to the upward bounce of the spring. The product needs less force when being pulled upward, operates stable when shrinking downward and self-locks to locate after being loosened, is simple in structure, has good reliability and is widely applied to meeting rooms, theatres or dancery and other places.

Description

The telescope support of tool automatic locking positioning device

Technical field

The utility model relates to a kind of support of putting article, especially refers to a kind of scalable support of heightening of shelving music score or microphone.

Background technology

Music score that meeting room, arenas or dance hall are common or microphone holder are combined by two joint internal and external casings usually, and regulate height by interior pipe stretching in outer tube.The fixed form of pipe mainly contains two kinds in this series products, a kind ofly one hold-down nut is installed in lateral attitude, outer tube upper end, make its location by the nut end crown on inner tubal wall, its major defect is easily to stay the location vestige on the inner tubal wall, produces bright spot, depression and influences attractive in appearance; Another kind of in outer tube upper end lengthwise position one thread bush is installed, the inner end of thread bush is made taper, and during the rotation thread bush, inner taper makes the outer tube reducing and with interior pipe location, its major defect is that governing speed is slow, needs bimanualness, inconvenience.On May 12nd, 1999, it is CN2317720Y " improved music easel " that Patent Office discloses notification number, it offers corresponding trepanning in interior pipe lower end, projection for arc-like sheet is nested with respectively, pipe lower end two sides in making that arc-like sheet is capable of hoisting and hanging over, and utilize the sheathed helical spring of projection of two arc-like sheets, two arc-like sheets are outwards strutted and roof pressure on outer tube wall, obtain to support and location voluntarily so as to pipe in making, but and pipe Jing is capable in reaching does high and low flexible adjustment.But in actual use, or from this patent specification accompanying drawing, analyze and also can learn, this product is to adjusted the time, the required friction that not only has two arc-like sheets outwards to strut that overcomes, the weight of pipe and the appended member in top thereof in also having, therefore bigger in the required power of last timing, use inconvenient.For this reason, it is little that people expect to invent a kind of required up and down adjusting power, and the telescope support of music score or microphone is shelved in lock-bit fast, stably.

The utility model content

The technical problems to be solved in the utility model is that to overcome the required power of timing on the existing background technology product bigger, and the location is unstable, uses inconvenient defective, provides a kind of required up and down adjusting power little to society, and telescope support that can lock-bit.

The technical scheme that its technical problem that solves the utility model adopts is: the telescope support of tool automatic locking positioning device comprises rack, pipe, outer tube and the base that is positioned at the top, it is characterized in that described interior pipe lower end is provided with the automatic locking positioning device by the gravitational equilibrium spring-loaded.

Described automatic locking positioning device is made up of interior pipe, keeper and outer tube.

Described keeper is that an end is olivary hollow elastic component, and its circumferential wall is cut with some the grooves that do not run through from top to bottom vertically, forms flexure strip, every outside arc convex of flexure strip.

Described spring inner ring is provided with cramp bar.

The endoporus of fixed cover and keeper is passed in described spring upper end, and is supported in the reducing of the upper end of interior pipe orifice.

Described outer tube upper port is made reducing shape, less than its internal diameter.

The utility model telescope support product installs one additional at interior pipe automatic locking positioning device and is used for the support spring of balancing gravity, thereby internally manages and the appended member generation in top one elastic force that makes progress, and the required power of last timing reduces greatly, uses convenient.When shrinking downwards, owing to there is the upwards elastic force of spring, the contraction of pipe becomes more steady in making.The required power that this product is upwards drawn high is little, shrinks downwards and operates steadily, and manages lock-bit at once in the back of loosing one's grip, and simple in structure, good reliability is widely used in places such as meeting room, arenas or dance hall.

Description of drawings

Fig. 1 is the three-dimensional decomposition texture schematic diagram of the utility model.

Fig. 2 is the three-dimensional decomposition texture schematic diagram of the utility model automatic locking positioning device.

The specific embodiment

As shown in Figure 1, the telescope support of the utility model tool automatic locking positioning device comprises the rack 1, connector 2, pipe 3, outer tube 7 and the base 11 that are positioned at the top, and outer tube 7 bottoms are installed joint pin 9 and decorative cover 10 successively, are fixed on the base 11.Interior pipe 3 is placed in the outer tube 7, and the lower end of interior pipe 3 is equipped with automatic locking positioning device.

As shown in Figure 2, pipe 3, keeper 4 and outer tube 7 in the utility model automatic locking positioning device comprises, the lower end 43 of keeper 4 is connected with shroud ring 5, and shroud ring 5 is fixedlyed connected with interior pipe 3, keeper 4 and is integral.For the weight of pipe 3 and the appended member in top thereof in offsetting, automatic locking positioning device produces elastic force upwards by spring 6 supportings.Spring 6 inner rings also are provided with cramp bar 8, and with the stability that guarantees to stretch, the upper end of spring 6 can directly be bearing in the bottom of shroud ring 5 according to different needs, also can pass the endoporus of shroud ring 5 and keeper 4, the upper end reducing of pipe 3 endoporus in being bearing in.Keeper 4 is that an end is olivary hollow elastic component, and its circumferential wall is cut with some the grooves that do not run through 41 from top to bottom vertically, thereby forms corresponding flexure strip 42 on circumferential wall, every flexure strip 42 outside arc convex.The upper port 71 of outer tube 7 is through processing and reducing, and pipe 3 is upwards pulled out in can preventing.

When the utility model product is installed, earlier cramp bar 8 is placed on the joint pin 9, put into spring 6, lid shroud ring 5, insert in shroud ring 5 inner rings lower end 43 of keeper 4, the lower end interference of interior pipe 3 is got into the inwall of keeper 4 lower ends 43, pipe 3, keeper 4 and shroud ring 5 fuse in making again.At last outer tube 7 is inserted in aforesaid assembly from top to bottom, and is fixed on the base 11.

The utility model is pulled upwardly when regulating height, provide the upwards elastic force of part by spring 6, make to the adjusted height more light, after loosing one's grip, every flexure strip 42 and the friction that outer tube 7 inwalls produce have overcome the weight of interior pipe 3 and the appended member in top thereof and lock-bit.Depress downwards when regulating height, owing to balancing spring 6 produces upwards elastic force by compression, it is highly more steady that interior pipe 3 is regulated downwards, after loosing one's grip, every flexure strip 42 and the friction that outer tube 7 inwalls produce have overcome the gravity of interior pipe 3 and the appended member in top thereof and lock-bit.

Claims

1, a kind of telescope support of tool automatic locking positioning device comprises the rack (1), pipe (3), outer tube (7) and the base (11) that are positioned at the top, it is characterized in that described interior pipe (3) lower end is provided with the automatic locking positioning device by gravitational equilibrium spring (6) supporting.

2, the telescope support of tool automatic locking positioning device as claimed in claim 1 is characterized in that described automatic locking positioning device is made up of interior pipe (3), keeper (4) and outer tube (7).

3, the telescope support of tool automatic locking positioning device as claimed in claim 2, it is characterized in that described keeper (4) is that an end is olivary hollow elastic component, its circumferential wall is cut with some the grooves that do not run through (41) from top to bottom vertically, form flexure strip (42), every flexure strip (42) is arc convex outwards.

4,, it is characterized in that described spring (6) inner ring is provided with cramp bar (8) as the telescope support of each described tool automatic locking positioning device of claim 1 to 3.

5, the telescope support of tool automatic locking positioning device as claimed in claim 4 is characterized in that described spring (6) upper end passes the endoporus of shroud ring (5) and keeper (4), and is supported in the upper end reducing of interior pipe (3) endoporus.

6, the telescope support of tool automatic locking positioning device as claimed in claim 5 is characterized in that described outer tube (7) upper port (71) makes reducing shape, less than its internal diameter.