CN213333514U

CN213333514U - Telescopic bracket

Info

Publication number: CN213333514U
Application number: CN202020673518.2U
Authority: CN
Inventors: 陈敏强
Original assignee: Guangzhou Si Bao Jian Electronics Co ltd
Current assignee: Guangzhou Si Bao Jian Electronics Co ltd
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2021-06-01
Anticipated expiration: 2030-04-28

Abstract

The utility model discloses a telescopic bracket, which comprises a base body, wherein a circular channel is arranged on the base body, and a piston column is sleeved in the circular channel; a plurality of cylindrical pull rods are sleeved between the base body and the piston column, and the pull rods are sleeved layer by layer from outside to inside; the inner wall of the circular channel of the base body and the inner wall of each pull rod are respectively provided with an L-shaped groove, and each L-shaped groove comprises a vertical groove part which is arranged along the axial direction and an arc groove part which is communicated with the vertical groove part and is arranged along the circumferential direction; the outer wall of the piston column and the outer wall of each pull rod are respectively provided with a guide block, and each guide block is in sliding fit with the L-shaped groove corresponding to the outer side of the guide block. Pulling the piston column to make the guide block move in the corresponding vertical groove part and extend the telescopic bracket; then the piston column is rotated to enable the guide block to enter the arc groove part, so that the telescopic bracket can be fixed after being stretched; convenient operation need not parts such as fixed buckle, structural optimization.

Description

Telescopic bracket

Technical Field

The utility model relates to a telescoping shoring column technical field especially relates to a telescoping shoring column.

Background

At present, a plurality of products are considered in the direction of reducing the size to facilitate carrying, a telescopic support or a telescopic rod is commonly used, the current telescopic support is not convenient to use, for example, the fixing of a camera support is troublesome, parts such as a fixing buckle need to be used for fixing, and the structure is not good enough.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a telescopic bracket can solve current telescopic bracket and use inconvenient, the not good enough problem of structure.

The technical scheme of the utility model is realized like this:

a telescopic bracket comprises a base body, wherein a circular channel is arranged on the base body, and a piston column is sleeved in the circular channel; a plurality of cylindrical pull rods are sleeved between the base body and the piston column, and the pull rods are sleeved layer by layer from outside to inside; the inner wall of the circular channel of the base body and the inner wall of each pull rod are respectively provided with an L-shaped groove, and each L-shaped groove comprises a vertical groove part which is arranged along the axial direction and an arc groove part which is communicated with the vertical groove part and is arranged along the circumferential direction; the outer wall of the piston column and the outer wall of each pull rod are respectively provided with a guide block, and each guide block is in sliding fit with the L-shaped groove corresponding to the outer side of the guide block.

As a further alternative of the telescopic bracket, the inner wall of the circular channel of the base body and the inner wall of each pull rod are provided with a convex block; the outer wall of the piston column and the outer wall of each pull rod are respectively provided with a first groove, a second groove and a third groove which are used for being clamped with corresponding lugs on the outer side; when the guide block is positioned at the end part of the vertical groove part, the first groove is clamped with the lug, when the guide block is positioned at the junction of the vertical groove part and the arc groove part, the second groove is clamped with the lug, and when the guide block is positioned at the end part of the arc groove part, the third groove is clamped with the lug.

As a further alternative of the telescopic bracket, the side walls of the base body and the pull rod are provided with through U-shaped slot holes, the U-shaped slot holes enable the side walls of the base body and the pull rod to be formed with elastic pieces, and the convex blocks are arranged on the inner sides of the elastic pieces.

As a further alternative of the telescopic bracket, the protrusion is hemispherical, and the first groove, the second groove and the third groove are configured to correspond to the protrusion.

As a further alternative of the telescopic bracket, the end of the shaft slot part penetrates out of the end surface of the base body or the pull rod; a clamping rod is arranged at the end part of the circular channel of the base body, and clamping grooves used for clamping with the clamping rod are formed in the end surfaces of the pull rod and the piston column; when the guide block is positioned in the vertical groove part, the clamping rod is positioned on the moving path of the clamping groove to prevent the guide block from being separated from the L-shaped groove.

As a further alternative to the telescopic support, the piston post has a length greater than the length of the pull rod and the circular channel.

As a further alternative of the telescopic bracket, the base body comprises a first base and a second base, and a part of the vertical groove part on the base body is positioned on the first base, and the other part is positioned on the second base.

As a further alternative of the telescopic bracket, two L-shaped grooves are formed in the inner wall of the circular channel of the base body and the inner wall of each pull rod, and the two L-shaped grooves are symmetrically arranged; the outer wall of the piston column and the outer wall of each pull rod are provided with two guide blocks; the inner wall of the circular channel of the base body and the inner wall of each pull rod are provided with two lugs, and the two lugs are symmetrically arranged; the outer wall of piston post and each the outer wall of pull rod is equipped with first recess, second recess and the third recess all has two.

As a further alternative of the telescopic bracket, the plurality of pull rods comprise a first pull rod and a second pull rod, and a guide block on the first pull rod is matched with an L-shaped groove on the base body; the guide block on the second pull rod is matched with the L-shaped groove on the first pull rod; and the guide block on the piston column is matched with the L-shaped groove on the second pull rod.

As a further alternative to the telescopic support, the piston post is cylindrical.

The beneficial effects of the utility model are that: pulling the piston column to make the guide block move in the corresponding vertical groove part and extend the telescopic bracket; then the piston column is rotated to enable the guide block to enter the arc groove part, so that the telescopic bracket can be fixed after being stretched; convenient operation need not parts such as fixed buckle, structural optimization.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a telescopic bracket of the present invention;

fig. 2 is an exploded view of a telescopic bracket according to the present invention;

FIG. 3 is a schematic structural view of one of the tie rods;

FIG. 4 is a schematic view of the engagement between the latch lever and the latch slot;

fig. 5 is an exploded view of the matrix.

In the figure: 1. a substrate; 1a, a first base; 1b, a second base; 11. a circular channel; 12. a clamping rod; 2. a pull rod; 2a, a first pull rod; 2b, a second pull rod; 3. a piston post; 4. an L-shaped slot; 41. a vertical slot part; 42. an arc groove part; 5. a bump; 51. a U-shaped slot; 52. a spring plate; 6a, a first groove; 6b, a second groove; 6c, a third groove; 7. a card slot; 8. and a guide block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may mean that the first feature is directly above or obliquely above the second feature, or that only the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1-5, a telescopic bracket is shown, which comprises a base body 1, wherein a circular channel 11 is arranged on the base body 1, and a piston column 3 is sleeved in the circular channel 11; a plurality of cylindrical pull rods 2 are sleeved between the base body 1 and the piston column 3, and the pull rods 2 are sleeved layer by layer from outside to inside; the inner wall of the circular channel 11 of the base body 1 and the inner wall of each pull rod 2 are respectively provided with an L-shaped groove 4, and each L-shaped groove 4 comprises a vertical groove part 41 which is formed along the axial direction and an arc groove part 42 which is communicated with the vertical groove part 41 and is formed along the circumferential direction; the outer wall of the piston column 3 and the outer wall of each pull rod 2 are provided with guide blocks 8, and each guide block 8 is in sliding fit with the L-shaped groove 4 corresponding to the outer side of the guide block.

Specifically, taking the number of the pull rods 2 as two as an example, the plurality of pull rods 2 include a first pull rod 2a and a second pull rod 2b, and a guide block 8 on the first pull rod 2a is matched with the L-shaped groove 4 on the base body 1; the guide block 8 on the second pull rod 2b is matched with the L-shaped groove 4 on the first pull rod 2 a; the guide block 8 on the piston column 3 is matched with the L-shaped groove 4 on the second pull rod 2 b; when the telescopic bracket needs to be extended in the initial shortened state, the piston column 3 is firstly pulled out, so that the guide block 8 on the piston column 3 moves in the vertical groove part 41 of the second pull rod 2b, the guide block 8 on the second pull rod 2b moves in the vertical groove part 41 of the first pull rod 2a, and the guide block 8 of the first pull rod 2a moves in the vertical groove part 41 of the base body 1; the whole is extended, and then the piston column 3, the second pull rod 2b or the first pull rod 2a are rotated clockwise or anticlockwise, so that the guide block 8 on the piston column rotates in the close arc-shaped groove, and the telescopic bracket cannot be shortened and is stable in structure when the piston column 3 is pressed. It should be noted that the arc groove portions 42 on each L-shaped groove 4 are all opened in the same direction along the circumferential direction, for example, all opened counterclockwise or all opened clockwise.

Wherein for the convenience of pulling out the piston post 3, referring to fig. 1, the length of the piston post 3 is greater than the length of the pull rod 2 and the circular channel 11. The piston column 3 may be a cylindrical or solid column as required.

In some embodiments, in order to further ensure the stability of the telescopic bracket, referring to fig. 2 and 3, the inner wall of the circular channel 11 of the base body 1 and the inner wall of each draw bar 2 are provided with a bump 5; the outer wall of the piston column 3 and the outer wall of each pull rod 2 are respectively provided with a first groove 6a, a second groove 6b and a third groove 6c which are used for being clamped with the corresponding convex blocks 5 on the outer side; when the guide block 8 is located at the end of the vertical slot 41, the first groove 6a is engaged with the protrusion 5, when the guide block 8 is located at the boundary between the vertical slot 41 and the arc slot 42, the second groove 6b is engaged with the protrusion 5, and when the guide block 8 is located at the end of the arc slot 42, the third groove 6c is engaged with the protrusion 5. Specifically, the side walls of the base 1 and the pull rod 2 are provided with through U-shaped slots 51, the U-shaped slots 51 enable the side walls of the base 1 and the pull rod 2 to form elastic pieces 52, and the bumps 5 are arranged on the inner sides of the elastic pieces 52. Preferably, the bump 5 is hemispherical, and the first groove 6a, the second groove 6b and the third groove 6c are configured to correspond to the bump 5.

Specifically, taking the connection between the piston rod 3 and the second rod 2b as an example, the connection between the two is divided into three states; in the first state, when the piston column 3 and the second pull rod 2b are in the shortened state, the guide block 8 on the piston column 3 is located at the end of the vertical groove part 41 on the second pull rod 2b, and at this time, the first groove 6a is clamped with the projection 5, so that a certain fixing effect is provided for the two; in the second state, when the piston rod 3 extends to the end relative to the second pull rod 2b, the guide block 8 on the piston rod 3 is located at the boundary of the vertical groove part 41 and the arc groove part 42 on the second pull rod 2b, and the second groove 6b is engaged with the projection 5; in the third state, when the piston rod 3 extends to the end with respect to the second rod 2b and is prevented from being shortened by rotation, the guide 8 on the piston rod 3 is positioned at the end of the arc groove 42 on the second rod 2b, and the third groove 6c is engaged with the projection 5. In addition, the connection principle of the second pull rod 2b and the first pull rod 2a is the same as that of the first pull rod 2a and the base body 1; on the basis that the lug 5 and the first groove 6a, the second groove 6b and the third groove 6c provide fixing effects, the piston column 3, the first pull rod 2a or the second pull rod 2b can be conveniently rotated, one of the piston column and the first pull rod can not influence the state of the piston column and the state of the second pull rod, the telescopic support can be conveniently extended in a segmented mode, and the telescopic support can be conveniently adjusted to be in a proper length.

In some specific embodiments, in order to prevent the piston rod 3, the first pull rod 2a or the second pull rod 2b from falling out of the base body 1, referring to fig. 3 and 4, an end of the vertical groove portion 41 protrudes from an end surface of the base body 1 or the pull rod 2; a clamping rod 12 is arranged at the end part of the circular channel 11 of the base body 1, and clamping grooves 7 used for clamping the clamping rod 12 are arranged on the end surfaces of the pull rod 2 and the piston column 3; when the guide block 8 is located in the vertical groove portion 41, the catching bar 12 is located on the moving path of the catching groove 7 to prevent the guide block 8 from being released from the L-shaped groove.

In other words, the end of the vertical groove 41 protrudes from the end surface of the base 1 or the pull rod 2, which facilitates the assembly of the telescopic bracket, for example, when the piston rod 3 is sleeved into the second pull rod 2b, the piston rod 3 may be inserted from the end of the second pull rod 2b communicating with the vertical groove 41. In addition, since the base body 1 is provided with the locking rod 12, the first pull rod 2a is prevented from being sleeved into the base body 1, referring to fig. 5, the base body 1 includes a first base 1a and a second base 1b, a part of the vertical groove portion 41 on the base body 1 is located on the first base 1a, and another part is located on the second base 1 b. Therefore, the first pull rod 2a can be sleeved into the second base 1b, the first base 1a is installed on the second base 1b, and the first base 1a and the second base 1b can be fixed in a bonding mode, a buckling mode or a bolt connection mode.

In the above scheme, in order to ensure that the extension process of the telescopic bracket is more stable and the extended structure is more stable, two L-shaped grooves 4 are formed in the inner wall of the circular channel 11 of the base body 1 and the inner wall of each pull rod 2, and the two L-shaped grooves are symmetrically arranged; two guide blocks 8 are arranged on the outer wall of the piston column 3 and the outer wall of each pull rod 2; the inner wall of the circular channel 11 of the base body 1 and the inner wall of each pull rod 2 are provided with two lugs 5, and the two lugs 5 are symmetrically arranged; the outer wall of the piston column 3 and the outer wall of each pull rod 2 are provided with two first grooves 6a, two second grooves 6b and two third grooves 6 c.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A telescopic bracket is characterized by comprising a base body, wherein a circular channel is arranged on the base body, and a piston column is sleeved in the circular channel; a plurality of cylindrical pull rods are sleeved between the base body and the piston column, and the pull rods are sleeved layer by layer from outside to inside; the inner wall of the circular channel of the base body and the inner wall of each pull rod are respectively provided with an L-shaped groove, and each L-shaped groove comprises a vertical groove part which is arranged along the axial direction and an arc groove part which is communicated with the vertical groove part and is arranged along the circumferential direction; the outer wall of the piston column and the outer wall of each pull rod are respectively provided with a guide block, and each guide block is in sliding fit with the L-shaped groove corresponding to the outer side of the guide block.

2. The telescopic bracket according to claim 1, wherein the inner wall of the circular channel of the base body and the inner wall of each pull rod are provided with a projection; the outer wall of the piston column and the outer wall of each pull rod are respectively provided with a first groove, a second groove and a third groove which are used for being clamped with corresponding lugs on the outer side; when the guide block is positioned at the end part of the vertical groove part, the first groove is clamped with the lug, when the guide block is positioned at the junction of the vertical groove part and the arc groove part, the second groove is clamped with the lug, and when the guide block is positioned at the end part of the arc groove part, the third groove is clamped with the lug.

3. The telescopic bracket according to claim 2, wherein the side walls of the base body and the pull rod are provided with through U-shaped slot holes, the U-shaped slot holes enable the side walls of the base body and the pull rod to be provided with elastic sheets, and the protruding blocks are arranged on the inner sides of the elastic sheets.

4. A telescopic support according to claim 3, wherein said projection is hemispherical, and said first recess, second recess and third recess are configured to correspond to said projection.

5. A telescopic support according to claim 1, wherein the ends of said shaft portion extend out from the end face of said base or said pull rod; a clamping rod is arranged at the end part of the circular channel of the base body, and clamping grooves used for clamping with the clamping rod are formed in the end surfaces of the pull rod and the piston column; when the guide block is positioned in the vertical groove part, the clamping rod is positioned on the moving path of the clamping groove to prevent the guide block from being separated from the L-shaped groove.

6. A telescopic support according to claim 5, wherein the length of said piston post is greater than the length of said pull rod and said circular channel.

7. A telescopic support according to claim 5, wherein said base includes a first base and a second base, part of the upright portion of said base being located on said first base and the other part being located on said second base.

8. A telescopic bracket according to claim 3, wherein there are two L-shaped grooves formed on the inner wall of the circular passage of the base body and the inner wall of each of the pull rods, and the two L-shaped grooves are symmetrically arranged; the outer wall of the piston column and the outer wall of each pull rod are provided with two guide blocks; the inner wall of the circular channel of the base body and the inner wall of each pull rod are provided with two lugs, and the two lugs are symmetrically arranged; the outer wall of piston post and each the outer wall of pull rod is equipped with first recess, second recess and the third recess all has two.

9. A telescoping support as in claim 1, wherein said plurality of tension rods comprises a first tension rod and a second tension rod, a guide block on said first tension rod engaging an L-shaped slot on said base; the guide block on the second pull rod is matched with the L-shaped groove on the first pull rod; and the guide block on the piston column is matched with the L-shaped groove on the second pull rod.

10. A telescopic support according to claim 1, characterised in that the piston post is cylindrical.