CN209644379U

CN209644379U - A kind of telescoping mechanism

Info

Publication number: CN209644379U
Application number: CN201920039748.0U
Authority: CN
Inventors: 胡强
Original assignee: Zhejiang You Qiang Industrial Co Ltd
Current assignee: Zhejiang You Qiang Industrial Co Ltd
Priority date: 2019-01-10
Filing date: 2019-01-10
Publication date: 2019-11-19
Anticipated expiration: 2029-01-10

Abstract

The utility model discloses a kind of telescoping mechanisms, it is related to landing leg stretching field, including telescopic rod, casing, ladder sleeve pipe, pedestal, thrust ring and sliding sleeve, the length adjustment of telescopic rod may be implemented by means of thrust ring and sliding sleeve for the utility model, and any position after adjustment is fixed, and be not in the danger of reset and landing, simultaneously, mechanism structure is simple, compact, occupies little space, and storage is convenient.

Description

A kind of telescoping mechanism

Technical field

The utility model relates to belong to landing leg stretching field, and in particular to one kind for desk, chair, fish with chair, The length-adjustable supporting leg retractable mechanism of parasols etc..

Background technique

In daily life, in the case of the places ground such as desk and chair may be uneven, support leg is best Be designed as retractable structure, thus by adjusting its some support leg length desk and chair can be put it is more flat Surely.Chair is used particularly with fishing, telescopic supporting leg regulatory function can preferably be suitable for rough landform, and stretch Contracting formula supporting leg can save space, convenient for storage and carry.

And Telescopic leg in the prior art is not fixed easily, and is easy to reset and be slid, and brings inconvenience to user, In special circumstances, it is also possible to cause unnecessary danger.

Utility model content

The purpose of this utility model is to provide a kind of telescoping mechanisms, to solve drawbacks described above caused by the prior art.

A kind of telescoping mechanism, including telescopic rod, outer tube and expansion locking mechanism, the telescopic rod are socketed in outer tube Portion, the expansion locking mechanism are socketed in outside the telescopic rod, and the expansion locking mechanism can be slided relative to outer tube, when stretching Contracting locking mechanism relative to outer tube slide when, expansion locking mechanism does not relock telescopic rod so that telescopic rod can be in outer tube on Lower slider.

Preferably, the expansion locking mechanism includes ladder sleeve pipe, pedestal, thrust ring and sliding sleeve；Ladder sleeve pipe upper end It is fixedly connected with outer tube, ladder sleeve pipe lower end is fixedly connected with pedestal, and thrust ring is between ladder sleeve pipe and pedestal, thrust ring Spring is provided between pedestal, sliding sleeve is socketed in outside ladder sleeve pipe, sliding sleeve relative to ladder sleeve pipe slidably.

Preferably, the ladder sleeve pipe includes cylinder type hollow upper tube and cylinder type hollow down tube, and upper tube lower end is protruded into down It is fixedly connected inside pipe and with down tube, the bottom surface of upper tube is inclined surface, and what inclined-plane tilted upward runs through the outer of ladder sleeve pipe on one side Wall, upper tube side wall are a plane scabbled, and plane lower end is intersected with inclined-plane through the outer wall position of ladder sleeve pipe, form sliding slot.

Preferably, in the cavity that the thrust ring is located at the inclined surface of ladder sleeve pipe and pedestal is formed, thrust ring one end Raised plectrum, plectrum stretch out upper tube and are located in sliding slot；The inside of the sliding sleeve is equipped with the block cooperated with plectrum.

Preferably, the diameter of bore of the thrust ring is greater than the outer diameter of telescopic rod.

Preferably, the outer surface of the telescopic rod is equipped with annular groove.

Preferably, the outside of the sliding sleeve is equipped with anti-skid chequer.

Preferably, the outer tube upper end is connect with supporting element, is equipped between the telescopic rod and the supporting element and is resetted bullet Spring.

Utility model has the advantages that the length tune of telescopic rod may be implemented by means of thrust ring and sliding sleeve for mechanism Section, and any position after adjustment is fixed, the rod outer surface that stretches is equipped with annular groove, increases the clamping journey of thrust ring and telescopic rod Degree, is not in the danger of reset and landing, meanwhile, mechanism structure is simple, compact, occupies little space, and storage is convenient.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model embodiment.

Fig. 2 is the cross-sectional view of the utility model embodiment.

Fig. 3 is the partial enlarged view in Fig. 2 at A.

Fig. 4 is the structural schematic diagram of ladder sleeve pipe in the utility model embodiment.

Fig. 5 is the cross-sectional view of ladder sleeve pipe in the utility model embodiment.

Fig. 6 is the structural schematic diagram of the lower half portion of the utility model embodiment.

Fig. 7 is the structural schematic diagram of thrust ring in the utility model embodiment.

Wherein, 1- connecting rod, 2- telescopic rod, 3- ladder sleeve pipe, 30- upper tube, 31- down tube, 32- sliding slot, 4- pedestal, 5- stop Throw-out collar, 51- plectrum, 6- sliding sleeve, 7- spring, 8- outer tube, 9- supporting element, 10- reset spring, 11- block, 12- foot pad, 13- are anti- Sliding line.

Specific embodiment

As shown in Figures 1 to 7, a kind of telescoping mechanism, including telescopic rod 2, outer tube 8 and expansion locking mechanism, it is described to stretch Contracting bar 2 is socketed in inside outer tube 8, and the expansion locking mechanism is socketed in outside the telescopic rod 2, and the expansion locking mechanism can It is slided relative to outer tube 8, when expansion locking mechanism is slided relative to outer tube 8, expansion locking mechanism does not relock telescopic rod 2, So that telescopic rod 2 can slide up and down in outer tube 8.

The expansion locking mechanism includes ladder sleeve pipe 3, pedestal 4, thrust ring 5 and sliding sleeve 6；3 upper end of ladder sleeve pipe with Outer tube 8 is fixedly connected, and 3 lower end of ladder sleeve pipe is fixedly connected with pedestal 4, and thrust ring 5 is between ladder sleeve pipe 3 and pedestal 4, only Spring 7 is provided between throw-out collar 5 and pedestal 4, sliding sleeve 6 is socketed in outside ladder sleeve pipe 3, and sliding sleeve 6 can be slided relative to ladder sleeve pipe 3 It is dynamic.

The ladder sleeve pipe 3 includes cylinder type hollow upper tube 30 and cylinder type hollow down tube 31, and 30 lower end of upper tube is protruded into down It is fixedly connected inside pipe 31 and with down tube 31, the bottom surface of upper tube 30 is inclined surface, and what inclined-plane tilted upward runs through ladder set on one side The outer wall of pipe 3,30 side wall of upper tube are a plane scabbled, and plane lower end is intersected with inclined-plane through the outer wall position of ladder sleeve pipe 3, Form sliding slot 32.

In the cavity that the thrust ring 5 is located at the inclined surface of ladder sleeve pipe 3 and pedestal 4 is formed, 5 one end of thrust ring has The plectrum 51 of protrusion, plectrum 51 stretch out upper tube 30 and are located in sliding slot 32；The inside of the sliding sleeve 6, which is equipped with, to be cooperated with plectrum 51 Block 11.

The diameter of bore of the thrust ring 5 is greater than the outer diameter of telescopic rod 2.

The outer surface of the telescopic rod 2 is equipped with annular groove, and the annular groove is matched with thrust ring 5, flexible with better locking Bar 2.

The lower end of the telescopic rod 2 is fixedly connected with connecting rod 1, and the lower end of the connecting rod 1 is connected with foot pad by flexural pivot 12, it plays a supporting role.

The outside of the sliding sleeve 6 is equipped with anti-skid chequer 13, reduces the risk of skidding.

8 upper end of outer tube is connect with supporting element 9, and reset spring is equipped between the telescopic rod 2 and the supporting element 9 10, the supporting element 9 can be installed on the bottom or side of chair, stool etc..

When the utility model is used, under the action of spring 7,51 one end of plectrum is upward on thrust ring 5 under default conditions It tilts, inclined, thrust ring inner hole and 2 annular groove phase of telescopic rod so that thrust ring 5 fits with 30 bottom surface inclined-plane of upper tube Contact, telescopic rod 2 is stuck, and telescopic rod 2 can not slide up and down；When needing to adjust the length of telescopic rod 2, sliding sleeve is stirred downwards 6, the block 11 of 6 inside of sliding sleeve drives the plectrum 51 of 5 side of thrust ring to move down, and thrust ring 5 is toggled it to horizontality, due to only The internal diameter of throw-out collar 5 itself is greater than the outer diameter of telescopic rod 2, the no longer stuck telescopic rod 2 of thrust ring 5 at this time, telescopic rod 2 at this time can on Lower slider when being adjusted to suitable position, unclamps sliding sleeve 6, and thrust ring 5 resets and again inclined under the action of spring 7 It is contacted with telescopic rod 2 and stuck, completes adjustment process.

Claims

1. a kind of telescoping mechanism, which is characterized in that including telescopic rod (2), outer tube (8) and expansion locking mechanism are described flexible Bar (2) is socketed in outer tube (8) inside, and the expansion locking mechanism is socketed in the telescopic rod (2) outside, the flexible locking machine Structure can be slided relative to outer tube (8), and when expansion locking mechanism is slided relative to outer tube (8), expansion locking mechanism is not relocked Telescopic rod (2), so that telescopic rod (2) can slide up and down in outer tube (8).

2. a kind of telescoping mechanism according to claim 1, it is characterised in that: the expansion locking mechanism includes ladder sleeve pipe (3), pedestal (4), thrust ring (5) and sliding sleeve (6)；Ladder sleeve pipe (3) upper end is fixedly connected with outer tube (8), ladder sleeve pipe (3) Lower end is fixedly connected with pedestal (4), and thrust ring (5) is located between ladder sleeve pipe (3) and pedestal (4), thrust ring (5) and pedestal (4) it is provided between spring (7), sliding sleeve (6) is socketed in ladder sleeve pipe (3) outside, and sliding sleeve (6) can relative to ladder sleeve pipe (3) Sliding.

3. a kind of telescoping mechanism according to claim 2, it is characterised in that: the ladder sleeve pipe (3) includes cylindrical empty (30) and cylinder type hollow down tube (31) are managed in the heart, and upper tube (30) lower end, which is protruded into down tube (31) inside and fixed with down tube (31), to be connected It connects, the bottom surface of upper tube (30) is inclined surface, the outer wall for running through ladder sleeve pipe (3) on one side that inclined-plane tilts upward, upper tube (30) side Wall is a plane scabbled, and plane lower end is intersected through the outer wall position of ladder sleeve pipe (3) with inclined-plane, formed sliding slot (32).

4. a kind of telescoping mechanism according to claim 3, it is characterised in that: the thrust ring (5) is located at ladder sleeve pipe (3) Inclined surface and pedestal (4) formed cavity in, the raised plectrum in thrust ring (5) one end (51), plectrum (51) stretch out Upper tube (30) is simultaneously located in sliding slot (32)；The inside of the sliding sleeve (6) is equipped with the block (11) cooperated with plectrum (51).

5. the telescoping mechanism according to any one of claim 2-4, it is characterised in that: the inner hole of the thrust ring (5) is straight Diameter is greater than the outer diameter of telescopic rod (2).

6. telescoping mechanism described in any one of -4 according to claim 1, it is characterised in that: the outer surface of the telescopic rod (2) Equipped with annular groove.

7. the telescoping mechanism according to any one of claim 2-4, it is characterised in that: the outside of the sliding sleeve (6) is equipped with Anti-skid chequer (13).

8. telescoping mechanism described in any one of -4 according to claim 1, it is characterised in that: outer tube (8) upper end and support Part (9) connection, is equipped with reset spring (10) between the telescopic rod (2) and the supporting element (9).