CN219020493U

CN219020493U - Telescopic supporting leg

Info

Publication number: CN219020493U
Application number: CN202222963223.0U
Authority: CN
Inventors: 裘海军; 方明田
Original assignee: Ningbo Xinyue Artist Machinery Manufactures Co Ltd
Current assignee: Ningbo Xinyue Artist Machinery Manufactures Co Ltd
Priority date: 2022-11-03
Filing date: 2022-11-03
Publication date: 2023-05-16
Anticipated expiration: 2032-11-03

Abstract

The utility model provides a telescopic supporting leg, which relates to the technical field of articles for daily use and aims to solve the problem that the telescopic supporting leg cannot realize free length adjustment in the prior art. The telescopic supporting leg can flexibly adjust the length of the supporting leg, and has wide adjusting range and stronger practicability.

Description

Telescopic supporting leg

Technical Field

The utility model relates to the technical field of daily necessities, in particular to a telescopic supporting foot.

Background

The telescopic supporting leg is widely applied to daily life of people, in particular to a table and a chair, so that the height of the telescopic supporting leg is adjustable, and the telescopic supporting leg is convenient for daily use.

The patent CN 204176285U discloses a multistage telescopic antiskid tripod, and the support body comprises three scalable supporting legs, scalable supporting legs cup joints by two steel pipes of thick upper and lower down and forms, opens on the thick steel pipe of two pipe junctions has the through-hole, installs the bolt of taking rotatory spanner in the through-hole, opens on the thin steel pipe and has a plurality of screw holes, and the telescoping of scalable supporting legs is adjusted in bolt and screw hole mutually supporting. The telescopic support leg can only realize the telescopic change of a specific length, however, the length requirement of the telescopic leg is not fixed under the actual use scene, so that the free adjustment of the length of the telescopic leg cannot be realized through the limiting hole and the positioning member, the use range is limited, and the popularization is not facilitated.

Disclosure of Invention

The utility model aims to provide a telescopic supporting leg, which solves the problem that the telescopic supporting leg in the prior art cannot realize free adjustment of the length.

The utility model provides a telescopic supporting leg which comprises an outer sleeve, a built-in pipe and a positioning piece, wherein a convex strip protruding inwards is arranged on the inner side of the outer sleeve, the convex strip is arranged along the length direction of the outer sleeve, a strip-shaped chute recessed inwards is arranged on the outer side of the built-in pipe, the strip-shaped chute is arranged along the length direction of the built-in pipe, the outer sleeve is sleeved on the outer side of the built-in pipe, the convex strip is slidably arranged in the strip-shaped chute, a positioning hole penetrating through the convex strip is formed in one end of the outer sleeve, a concave limiting groove is formed in the bottom surface of the strip-shaped chute, the limiting groove is in a strip shape and is arranged along the length direction of the strip-shaped chute, and the positioning piece penetrates through the positioning hole from the outer side of the outer sleeve and is limited in the limiting groove.

As a preferable scheme of the utility model, a plurality of positioning ribs are arranged on the inner side wall of the outer sleeve, the positioning ribs are symmetrically arranged on the side walls on two sides of the raised strip, a positioning groove which is arranged corresponding to the positioning ribs is arranged on the outer side wall of the built-in pipe, and the positioning ribs can be arranged in the positioning groove in a sliding manner.

As a preferable scheme of the utility model, the height of the positioning convex rib protruding out of the inner side wall of the outer sleeve is larger than the depth of the positioning groove recessed in the outer side wall of the built-in pipe.

As a preferable mode of the utility model, the cross sections of the outer sleeve and the built-in pipe are square structures, the raised strips are arranged on one side face of the inner side of the outer sleeve, and the strip-shaped sliding grooves are arranged on the outer side of one side face of the built-in pipe.

As a preferable mode of the utility model, a first limit rib protruding inwards is arranged at one end, close to the positioning hole, of the outer sleeve, the first limit rib is arranged along the circumferential direction of the outer sleeve, a second limit rib protruding outwards is arranged at one end, connected with the outer sleeve, of the inner sleeve, the second limit rib is arranged along the circumferential direction of the inner sleeve, and the first limit rib abuts against the second limit rib to limit the sliding distance of the outer sleeve relative to the inner sleeve.

As a preferable scheme of the utility model, the utility model further comprises a mounting base, wherein the mounting base is arranged at one end of the built-in pipe far away from the second limiting rib.

As a preferred scheme of the utility model, the mounting base comprises a bottom plate, a baffle plate and two mounting lugs, wherein the two mounting lugs are vertically connected to the bottom plate at intervals, the baffle plate is connected to one side of the two mounting lugs, and the built-in pipe is arranged between the two mounting lugs and rotatably connected with the mounting base through a connecting piece penetrating through the mounting lugs and the built-in pipe.

As a preferable scheme of the utility model, a soft foot pad is arranged at one end of the outer sleeve, which is far away from the positioning hole, and the soft foot pad is sleeved on the outer sleeve.

Compared with the prior art, the utility model has the following positive effects:

1. the telescopic supporting leg comprises an outer sleeve, an inner tube and a positioning piece, wherein a convex strip protruding inwards is arranged on the inner side of the outer sleeve, the convex strip is arranged along the length direction of the outer sleeve, a strip-shaped chute recessed inwards is arranged on the outer side of the inner tube, the strip-shaped chute is arranged along the length direction of the inner tube, the outer sleeve is sleeved on the outer side of the inner tube, the convex strip is slidably arranged in the strip-shaped chute, a positioning hole penetrating the convex strip is formed in one end of the outer sleeve, a concave limiting groove is formed in the bottom surface of the strip-shaped chute, the limiting groove is in a strip shape and is arranged along the length direction of the strip-shaped chute, and the positioning piece penetrates the positioning hole from the outer side of the outer sleeve to be limited in the limiting groove. The positioning piece on the telescopic supporting leg can pass through the positioning hole penetrating through the raised strips to be abutted against the limiting groove, so that the outer sleeve and the built-in pipe are firmly fixed, the connecting position of the outer sleeve can be randomly adjusted relative to the built-in pipe, the length of the supporting leg can be flexibly adjusted, the adjusting range is wide, the practicability is higher, and the popularization is easy.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a front view of the telescopic support foot of the present utility model when extended;

FIG. 2 is an enlarged view of a portion of FIG. 1A;

FIG. 3 is a top view of the telescopic support foot of the present utility model when extended;

FIG. 4 is a front view of the telescopic support foot of the present utility model when retracted;

FIG. 5 is a top view of the telescopic support foot of the present utility model when retracted;

FIG. 6 is a cross-sectional view of an outer sleeve of the present utility model;

FIG. 7 is a cross-sectional view of a innerduct of the utility model;

FIG. 8 is a cross-sectional view of the outer sleeve of the present utility model in connection with a catheter;

fig. 9 is a schematic view of the structure of the rotatable connection of the outer sleeve and the inner tube with the mounting base.

In the figure: 1. an outer sleeve; 11. a convex strip; 12. positioning the convex ribs; 13. positioning holes; 14. the first limit rib; 2. a built-in tube; 21. a strip-shaped chute; 22. a positioning groove; 23. a limit groove; 24. the second limit rib; 3. a mounting base; 31. a bottom plate; 32. a mounting ear; 33. a baffle; 34. a mounting hole; 35. a connecting piece; 36. a nylon gasket; 4. a soft foot pad; 5. and a positioning piece.

Detailed Description

In the description of the present utility model, it is to be noted that, unless otherwise indicated, the meaning of "plurality" means two or more; the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "front," "rear," "head," "tail," and the like are merely for convenience in describing and simplifying the utility model based on the orientation or positional relationship shown in the drawings and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.

The following describes the embodiments of the present utility model in further detail with reference to the drawings.

Example 1:

the telescopic supporting leg provided in this embodiment, as shown in fig. 1-9, comprises an outer sleeve 1, a built-in tube 2 and a positioning member 5. The inner side of the outer sleeve 1 is provided with an inwardly protruding ridge 11, and the ridge 11 is provided along the length direction of the outer sleeve 1. The outside of the inner tube 2 is provided with a strip-shaped chute 21 recessed inward, and the strip-shaped chute 21 is provided along the longitudinal direction of the inner tube 2. The outer sleeve 1 is sleeved outside the inner tube 2, and the raised strips 11 are slidably arranged in the strip-shaped sliding grooves 21. The positioning piece 5 passes through the positioning hole 13 from the outer side of the outer sleeve 1 and is limited in the limiting groove 23. Wherein, the locating piece 5 is a screw.

When the telescopic supporting leg of the embodiment adjusts the telescopic length, the outer sleeve 1 moves relative to the inner tube 2, the overlapping degree of the outer sleeve 1 and the inner tube 2 is adjusted, the outer sleeve 1 and the inner tube 2 slide relatively in the strip-shaped sliding groove 21 through the raised strips 11, the outer sleeve 1 and the inner tube 2 stretch out and draw back conveniently and smoothly, the wall thickness of the outer sleeve 1 is increased due to the arrangement of the raised strips 11, the positioning piece 5 is convenient to install, when the outer sleeve 1 and the inner tube 2 stretch out and retract relatively to a certain position, the positioning piece 5 is screwed, one end of the positioning piece 5 stretches into the strip-shaped sliding groove 21 and is propped against the limiting groove 23, so that the positioning piece 5 is positioned, the positioning piece 5 is fixed firmly and reliably, the outer sleeve 1 and the inner tube 2 are firmly connected, and the supporting leg has good supporting strength.

The locating piece 5 on the scalable supporting legs of this embodiment can pass the locating hole 13 that runs through sand grip 11 setting and support and lean on spacing groove 23 to it is fixed firm with outer tube 1 and built-in pipe 2, outer tube 1 can adjust hookup location wantonly for built-in pipe 2, thereby nimble length of adjusting the supporting legs, accommodation is wide, and the practicality is stronger, easily promotes.

Preferably, as shown in fig. 6-8, a plurality of positioning ribs 12 are arranged on the inner side wall of the outer sleeve 1, the positioning ribs 12 are symmetrically arranged on the side walls on two sides of the raised strips 11, a positioning groove 22 which is arranged corresponding to the positioning ribs 12 is arranged on the outer side wall of the inner tube 2, and the positioning ribs 12 are slidably arranged in the positioning groove 22.

In the embodiment, the positioning ribs 12 are arranged in the outer sleeve 1, the positioning grooves 22 are arranged outside the inner tube 2, the outer sleeve 1 and the inner tube 2 are positioned and limited by the matched connection of the positioning ribs 12 and the positioning grooves 22, and the torque between the tubes is reduced, so that the outer sleeve 1 and the inner tube 2 are connected more firmly. The cross sections of the positioning ribs 12 and the positioning grooves 22 are arc-shaped, so that the positioning ribs 12 slide in the positioning grooves 22 more smoothly.

Preferably, as shown in fig. 6 and 7, the height a of the positioning ribs 12 protruding from the inner side wall of the outer sleeve 1 is greater than the depth b of the positioning grooves 22 recessed from the outer side wall of the inner tube 2.

In this embodiment, when the positioning ribs 12 are slidably disposed in the positioning grooves 22, a gap exists between the inner side wall of the outer sleeve 1 and the outer side wall of the inner tube 2, so that friction between the outer sleeve 1 and the inner tube 2 is reduced, and the service life of the support leg is prolonged.

Preferably, the cross sections of the outer sleeve 1 and the inner tube 2 are square structures, the raised strips 11 are arranged on one of the inner sides of the outer sleeve 1, and the strip-shaped sliding grooves 21 are arranged on the outer side of one of the inner tube 2. The strip-shaped chute 21 is formed by bending one side surface of the inner tube 2 inward. The cross sections of the raised strips 11 and the strip-shaped sliding grooves 21 are rectangular structures, so that the outer sleeve 1 and the inner tube 2 are positioned more firmly.

Preferably, as shown in fig. 1 and 2, a first limiting rib 14 protruding inwards is arranged at one end of the outer sleeve 1 near the positioning hole 13, and the first limiting rib 14 is arranged along the circumferential direction of the outer sleeve 1. A second limit rib 24 protruding outwards is arranged at one end of the inner tube 2 connected with the outer sleeve 1, and the second limit rib 24 is arranged along the circumferential direction of the inner tube 2. The first limiting rib 14 abuts against the second limiting rib 24 to limit the sliding distance of the outer sleeve 1 relative to the inner tube 2.

In this embodiment, the first limiting ribs 14 and the second limiting ribs 24 are respectively disposed on the outer sleeve 1 and the inner tube 2, so that the outer sleeve 1 can effectively prevent the support legs from being excessively stretched and falling off in the process of moving relative to the inner tube 2.

Preferably, the telescopic supporting leg of the present embodiment further includes a mounting base 3, and the mounting base 3 is disposed at an end of the inner tube away from the second limiting rib 24. The mounting base 3 is used for being mounted on the board surface of a table, a chair or the like, so that the board surface is supported by the telescopic supporting legs.

Preferably, as shown in fig. 1, 3 and 9, the mounting base 3 includes a bottom plate 31, a baffle 33 and two mounting ears 32. Two mounting lugs 32 are vertically connected to the bottom plate 31 at intervals, and a baffle 33 is connected to one side of the two mounting lugs 32. The inner tube 2 is disposed between the two mounting ears 32 and rotatably connects the inner tube 2 with the mounting base 3 by passing through the mounting ears 32 and the inner tube 2 through the connector 35. Wherein the connecting member 35 is a rivet. Four corners of the bottom plate 31 are provided with mounting holes 34, and are connected with the plate surface through the mounting holes 34. Nylon gaskets 36 are arranged on two sides of the connecting hole of the built-in pipe 2 and the mounting lug 32, the nylon gaskets 36 are T-shaped, and the nylon gaskets 36 play a damping role to prevent the built-in pipe 2 from being scratched.

The inner tube 2 and the outer sleeve 1 in this embodiment can rotate relative to the mounting base 3 at the same time, as shown in fig. 9, when the desk and chair is in use, the inner tube 2 and the outer sleeve 1 rotate clockwise relative to the mounting base 3 by 90 ° to the vertical position so as to support the connected panel, and when the desk and chair is idle, the inner tube 2 and the outer sleeve 1 rotate anticlockwise relative to the mounting base 3 by 90 ° to the horizontal position, so that the telescopic supporting legs fold and retract relative to the panel, and the desk and chair is convenient to store.

Preferably, a soft foot pad 4 is arranged at one end of the outer sleeve 1 away from the positioning hole 13, the soft foot pad 4 is sleeved on the outer sleeve 1, and the contact with the ground is more stable in use.

The outer sleeve 1 and the inner tube 2 in the embodiment are all aluminum tubes, so that the weight is light, corrosion is not easy to occur, and the service life is prolonged.

The above description is only of the preferred embodiments of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art can make several variations and modifications without departing from the inventive concept, and it is intended to cover the scope of the present utility model.

Claims

1. The utility model provides a scalable supporting legs, its characterized in that, includes outer tube (1), built-in pipe (2) and setting element (5), the inboard of outer tube (1) is provided with inside convex sand grip (11), sand grip (11) are followed the length direction setting of outer tube (1), the outside of built-in pipe (2) is provided with inside sunken bar spout (21), bar spout (21) are followed the length direction setting of built-in pipe (2), outer tube (1) cover in the outside of built-in pipe (2) just sand grip (11) slidable set up in bar spout (21) one end of outer tube (1) is provided with runs through locating hole (13) of sand grip (11) be provided with spacing groove (23) of indent on the bottom surface of bar spout (21), spacing groove (23) are the bar form and follow the length direction setting of bar spout (21), setting element (5) are passed by the outside of outer tube (1) locating hole (13) are located spacing groove (23).

2. The telescopic supporting leg according to claim 1, wherein a plurality of positioning ribs (12) are arranged on the inner side wall of the outer sleeve (1), the positioning ribs (12) are symmetrically arranged on the side walls on two sides of the raised strips (11), positioning grooves (22) which are correspondingly arranged with the positioning ribs (12) are arranged on the outer side wall of the built-in pipe (2), and the positioning ribs (12) are slidably arranged in the positioning grooves (22).

3. The telescopic supporting leg according to claim 2, wherein the height of the positioning ribs (12) protruding out of the inner side wall of the outer sleeve (1) is larger than the depth of the positioning grooves (22) recessed in the outer side wall of the inner tube (2).

4. The telescopic support foot according to claim 2, wherein the cross sections of the outer sleeve (1) and the inner tube (2) are square structures, the raised strips (11) are arranged on one of the inner sides of the outer sleeve (1), and the strip-shaped sliding grooves (21) are arranged on the outer side of one of the inner sides of the inner tube (2).

5. The telescopic supporting leg according to claim 1, characterized in that a first limiting rib (14) protruding inwards is arranged at one end, close to the positioning hole (13), of the outer sleeve (1), the first limiting rib (14) is arranged along the circumferential direction of the outer sleeve (1), a second limiting rib (24) protruding outwards is arranged at one end, connected with the outer sleeve (1), of the inner sleeve (2), the second limiting rib (24) is arranged along the circumferential direction of the inner sleeve (2), and the first limiting rib (14) abuts against the second limiting rib (24) to limit the sliding distance of the outer sleeve (1) relative to the inner sleeve (2).

6. The retractable support foot of claim 5, further comprising a mounting base disposed on said inner tube at an end thereof remote from said second stop bar.

7. A telescopic support foot according to claim 6, wherein the mounting base (3) comprises a bottom plate (31), a baffle (33) and two mounting ears (32), the two mounting ears (32) are vertically connected to the bottom plate (31) at intervals, the baffle (33) is connected to one side of the two mounting ears (32), and the inner tube (2) is arranged between the two mounting ears (32) and penetrates the mounting ears (32) and the inner tube (2) through a connecting piece (35) to rotatably connect the inner tube (2) with the mounting base (3).

8. A telescopic support foot according to claim 1, wherein a soft foot pad (4) is arranged at the end of the outer sleeve (1) away from the positioning hole (13), and the soft foot pad (4) is sleeved on the outer sleeve (1).