CN214465370U

CN214465370U - Supporting frame

Info

Publication number: CN214465370U
Application number: CN202120538090.5U
Authority: CN
Inventors: 刘法丽
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2021-10-22
Anticipated expiration: 2031-03-16

Abstract

The utility model discloses a support frame, which comprises a base, install the sleeve pipe on the base, sliding connection has the telescopic link that can go up and down in the sleeve pipe, sleeve pipe lateral part threaded connection has the screw rod that can offset with the telescopic link lateral part, the screw rod rear end is connected with the nut, it is connected with the spiral cover that can the seesaw to rotate on the nut, be equipped with resetting means between spiral cover and the nut, a plurality of bar grooves have been seted up at the nut rear portion, it is protruding to be connected with the bar that can suit with the bar groove on the spiral cover. When the height of the telescopic rod needs to be adjusted, an operator presses the screw cap, the strip-shaped protrusions enter the strip-shaped grooves, at the moment, the screw cap is rotated, and the screw cap and the screw rod rotate together with the screw cap; when the height of telescopic link need not be adjusted, the spiral cover return, the bar arch breaks away from the bar groove, and at this moment, rotate the spiral cover, nut and screw rod do not rotate along with the spiral cover, avoid children etc. to rotate the spiral cover by mistake and cause the telescopic link to descend suddenly.

Description

Supporting frame

Technical Field

The utility model relates to a support frame.

Background

In production life, support frames with adjustable height are often needed for placing articles and the like. The existing support frame comprises a base, a sleeve is mounted on the base, a telescopic rod capable of lifting is slidably connected in the sleeve, a screw rod capable of abutting against the side part of the telescopic rod is in threaded connection with the side part of the sleeve, a nut is connected to the rear end of the screw rod, when the height of the telescopic rod needs to be adjusted, the nut is rotated to enable the front end of the screw rod to be separated from contact with the telescopic rod, and at the moment, an operator can hold the telescopic rod to adjust the height of the telescopic rod; when the height of the telescopic rod does not need to be adjusted, the nut is rotated reversely, the front end of the screw rod is abutted to the telescopic rod, and the telescopic rod is prevented from lifting by friction.

The above technical solution has the following disadvantages: the nut is touched by mistake easily, causes the nut to rotate, can cause the telescopic link to descend suddenly, damages the article of placing, also injures personnel nearby easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a support frame to above problem, avoid mistake rotary cover such as children to cause the telescopic link to descend suddenly.

In order to achieve the purpose, the utility model discloses a support frame, it includes the base, install the sleeve pipe on the base, sliding connection has the telescopic link that can go up and down in the sleeve pipe, sleeve pipe lateral part threaded connection has the screw rod that can offset with the telescopic link lateral part, the screw rod rear end is connected with the nut, it is connected with the spiral cover that can the seesaw to rotate on the nut, be equipped with resetting means between spiral cover and the nut, a plurality of bar grooves have been seted up at the nut rear portion, it is protruding to be connected with the bar that can suit with the bar groove on the spiral cover. When the height of the telescopic rod needs to be adjusted, an operator presses the screw cap, the strip-shaped protrusions enter the strip-shaped grooves, at the moment, the screw cap is rotated, and the screw cap and the screw rod rotate together with the screw cap; when the height of telescopic link need not be adjusted, the spiral cover return, the bar arch breaks away from the bar groove, and at this moment, rotate the spiral cover, nut and screw rod do not rotate along with the spiral cover, avoid children etc. to rotate the spiral cover by mistake and cause the telescopic link to descend suddenly.

Preferably, the spiral cover is sleeved on the nut, the rear end of the spiral cover is sealed and arranged, the front end of the spiral cover is connected with a limiting cover located in front of the nut in a detachable mode, and a screw rod through hole for allowing the screw rod to pass through is formed in the limiting cover. When the screw cap is installed, firstly, the screw rod penetrates through the screw rod through hole, and then, the screw cap is installed on the limiting cap.

Preferably, the side part of the front end of the nut is connected with a front positioning bulge which surrounds the nut for a circle, the inner side of the screw cap is connected with a rear positioning bulge which surrounds the nut for a circle and is positioned behind the front positioning bulge, the reset device comprises a spring which is sleeved on the nut, the front end of the spring is abutted against the front positioning bulge, and the rear end of the spring is abutted against the rear positioning bulge. When the screw cap is pressed, the screw cap moves forwards, at the moment, the rear positioning bulge compresses the spring, and when the pressure on the screw cap is cancelled, the spring rebounds, and the screw cap returns.

Preferably, the screw cap is further sleeved with a front top ring positioned in front of the spring, and a plurality of front balls are arranged between the front top ring and the front positioning bulges; the nut is further sleeved with a rear top ring located behind the spring, and a plurality of rear balls are arranged between the rear top ring and the rear positioning bulges. When the screw cap is pressed, the screw cap moves forwards, at the moment, the rear positioning bulge compresses the spring, and when the pressure on the screw cap is cancelled, the spring rebounds, and the screw cap returns.

Preferably, the nut is further sleeved with a front ball limiting ring positioned between the front top ring and the front positioning bulge, and the front ball is positioned on the inner side of the front ball limiting ring; the rear part of the outer edge of the rear top ring is connected with a rear ball limiting ring, and the rear balls are located on the inner side of the rear ball limiting ring. When ball and back ball before the installation, at first, stick up the nut, the screw rod is under, the nut is last, then, overlaps preceding ball spacing ring on the nut to place preceding ball inboard in preceding ball spacing ring, cup joint preceding apical ring, spring and back apical ring again on the nut, and place back ball inboard in back ball spacing ring, finally, the installation spiral cover can.

Preferably, the outer diameter of the front ball limiting ring is smaller than that of the front top ring, and the outer diameter of the front ball limiting ring is smaller than that of the front positioning protrusion. When in use, mutual interference between components is avoided.

Preferably, the limit cover is in threaded connection with the spiral cover, and sealant is filled between the limit cover and the spiral cover. When the spiral cover is installed, firstly, the screw rod penetrates through the screw rod through hole, then the spiral cover is installed on the limiting cover, finally, the sealing glue is smeared in the fit clearance between the limiting cover and the spiral cover, and the installation process is simple.

Preferably, the upper end of the telescopic rod is connected with a hook. When in use, articles can be placed on the hook.

To sum up, the beneficial effects of the utility model reside in that: when the height of the telescopic rod needs to be adjusted, an operator presses the screw cap, the strip-shaped protrusions enter the strip-shaped grooves, at the moment, the screw cap is rotated, and the screw cap and the screw rod rotate together with the screw cap; when the height of telescopic link need not be adjusted, the spiral cover return, the bar arch breaks away from the bar groove, and at this moment, rotate the spiral cover, nut and screw rod do not rotate along with the spiral cover, avoid children etc. to rotate the spiral cover by mistake and cause the telescopic link to descend suddenly.

Drawings

Fig. 1 is a schematic structural view of a support frame of the present invention;

FIG. 2 is a schematic view of the structure of detail A in FIG. 1;

FIG. 3 is a schematic view of the structure of detail B of FIG. 2;

fig. 4 is a schematic structural diagram of a use state of the part B in fig. 2.

In the figure: 1. a base; 2. a sleeve; 3. a telescopic rod; 4. hooking; 5. a nut; 6. a strip-shaped groove; 7. screwing a cover; 8. a strip-shaped bulge; 9. a limiting cover; 10. sealing glue; 11. a front ball limiting ring; 12. a front ball; 13. a front top ring; 14. a rear top ring; 15. a spring; 16. a rear ball retainer ring; 17. a rear ball; 18. a screw; 19. a rear positioning boss; 20. a front positioning projection; 21. and (4) passing through the hole by the screw rod.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

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

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The invention will be further explained with reference to the drawings and the detailed description below:

as shown in fig. 1 to 4, a support frame comprises a base 1, a vertically arranged sleeve 2 is installed on the base 1, a telescopic rod 3 capable of lifting is connected in the sleeve 2 in a sliding manner, and a plurality of hooks 4 are connected to the upper end of the telescopic rod 3. When in use, articles can be placed on the hook 4.

The screw 18 which can be abutted against the side part of the telescopic rod 3 is in threaded connection with the side part of the sleeve 2, the nut 5 is connected with the rear end of the screw 18, when the height of the telescopic rod 3 needs to be adjusted, the nut 5 is rotated to enable the front end of the screw 18 to be separated from contact with the telescopic rod 3, and at the moment, an operator can hold the telescopic rod 3 and adjust the height of the telescopic rod 3; when the height of the telescopic rod 3 is not required to be adjusted, the screw cap 5 is rotated reversely, so that the front end of the screw rod 18 is abutted against the telescopic rod 3, and the telescopic rod 3 is prevented from lifting by using friction force.

The screw cap 5 is rotatably connected with a screw cap 7 capable of moving back and forth, preferably, the screw cap 5 is cylindrical, the screw cap 7 is sleeved on the screw cap 5, the rear end of the screw cap 7 is sealed, and the front end of the screw cap 7 is open.

The front end of the spiral cover 7 is detachably connected with a limit cover 9 positioned in front of the nut 5, and a screw rod via hole 21 for the screw rod 18 to pass through is formed in the limit cover 9. Specifically, the spiro union between spacing lid 9 and the spiral cover 7, it has sealed glue 10 to fill between spacing lid 9 and the spiral cover 7, and sealed glue 10 is used for strengthening the joint strength between spacing lid 9 and the spiral cover 7, reduces the risk that the pine takes off, and sealed glue 10 adopts prior art, no longer gives unnecessary details here.

When the screw cap 7 is installed, firstly, the screw rod 18 penetrates through the screw rod through hole 21, then, the screw cap 7 is installed on the limiting cap 9, and finally, the sealing glue 10 is coated in the fit clearance between the limiting cap 9 and the screw cap 7, so that the installation process is simple.

A resetting device is arranged between the screw cap 7 and the screw cap 5. Specifically, the side part of the front end of the nut 5 is connected with a front positioning bulge 20 surrounding the front positioning bulge for one circle, the inner side of the screw cap 7 is connected with a rear positioning bulge 19 surrounding the front positioning bulge for one circle and positioned behind the front positioning bulge 20, the reset device comprises a spring 15 sleeved on the nut 5, the front end of the spring 15 abuts against the front positioning bulge 20, and the rear end of the spring 15 abuts against the rear positioning bulge 19. When the screw cap 7 is pressed, the screw cap 7 moves forward, at this time, the rear positioning projection 19 compresses the spring 15, and when the pressing force to the screw cap 7 is removed, the spring 15 rebounds and the screw cap 7 returns.

The screw cap 5 is also sleeved with a front top ring 13 positioned in front of the spring 15, and a plurality of front balls 12 are arranged between the front top ring 13 and the front positioning bulge 20; the nut 5 is also sleeved with a rear top ring 14 positioned behind the spring 15, and a plurality of rear balls 17 are arranged between the rear top ring 14 and the rear positioning bulge 19. When the screw cap 7 is rotated, the front balls 12 serve to reduce the frictional force between the front top ring 13 and the front positioning projection 20, and the rear balls 17 serve to reduce the frictional force between the rear top ring 14 and the rear positioning projection 19.

The nut 5 is also sleeved with a front ball limiting ring 11 positioned between the front top ring 13 and the front positioning bulge 20, and the front ball 12 is positioned on the inner side of the front ball limiting ring 11; the rear part of the outer edge of the rear top ring 14 is connected with a rear ball limiting ring 16, and the rear balls 17 are positioned on the inner side of the rear ball limiting ring 16. When the front ball 12 and the rear ball 17 are mounted, the nut 5 is erected, the screw 18 is placed downward, the nut 5 is placed upward, the front ball retainer ring 11 is fitted over the nut 5, the front ball 12 is placed inside the front ball retainer ring 11, the front top ring 13, the spring 15, and the rear top ring 14 are fitted over the nut 5 again, the rear ball 17 is placed inside the rear ball retainer ring 16, and finally, the screw cap 7 is mounted.

The outer diameter of the front ball limiting ring 11 is smaller than that of the front top ring 13, the outer diameter of the front ball limiting ring 11 is smaller than that of the front positioning protrusion 20, the thickness of the front ball limiting ring 11 is smaller than that of the front balls 12, and the thickness of the rear ball limiting ring 16 is smaller than that of the rear balls 17. When in use, mutual interference between components is avoided.

A plurality of strip-shaped grooves 6 are formed in the rear portion of the nut 5, and strip-shaped protrusions 8 which can be matched with the strip-shaped grooves 6 are connected to the spiral cover 7. Preferably, the strip-shaped groove 6 is radially arranged along the nut 5, and the strip-shaped protrusion 8 is radially arranged along the screw cap 7.

When the height of the telescopic rod 3 needs to be adjusted, an operator presses the screw cap 7, the strip-shaped protrusions 8 enter the strip-shaped grooves 6, at the moment, the screw cap 7 is rotated, and the screw cap 5 and the screw rod 18 rotate together with the screw cap 7; when the height of telescopic link 3 need not be adjusted, spiral cover 7 return, the protruding 8 of bar breaks away from strip groove 6, at this moment, rotates spiral cover 7, and nut 5 and screw rod 18 do not rotate along with spiral cover 7, avoids mistake such as children to rotate spiral cover 7 and causes telescopic link 3 to descend suddenly.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a support frame, includes base (1), install sleeve pipe (2) on base (1), sliding connection has telescopic link (3) that can go up and down in sleeve pipe (2), sleeve pipe (2) lateral part threaded connection has screw rod (18) that can offset with telescopic link (3) lateral part, screw rod (18) rear end is connected with nut (5), its characterized in that, it is connected with spiral cover (7) that can the seesaw to rotate on nut (5), be equipped with resetting means between spiral cover (7) and nut (5), a plurality of bar grooves (6) have been seted up at nut (5) rear portion, be connected with protruding (8) of bar that can suit with bar groove (6) on spiral cover (7).

2. The supporting frame as claimed in claim 1, wherein the screw cap (7) is sleeved on the screw cap (5), the rear end of the screw cap (7) is closed, the front end of the screw cap (7) is detachably connected with a limiting cap (9) positioned in front of the screw cap (5), and the limiting cap (9) is provided with a screw rod through hole (21) for allowing the screw rod (18) to pass through.

3. The supporting frame according to claim 2, characterized in that the front end of the nut (5) is connected with a front positioning protrusion (20) which surrounds the nut for one circle, the inner side of the screw cap (7) is connected with a rear positioning protrusion (19) which surrounds the nut for one circle and is located behind the front positioning protrusion (20), the resetting device comprises a spring (15) sleeved on the nut (5), the front end of the spring (15) abuts against the front positioning protrusion (20), and the rear end of the spring (15) abuts against the rear positioning protrusion (19).

4. A support frame as claimed in claim 3, wherein said nut (5) is further sleeved with a front top ring (13) located in front of the spring (15), and a plurality of front balls (12) are arranged between said front top ring (13) and the front positioning boss (20); the screw cap (5) is further sleeved with a rear top ring (14) located behind the spring (15), and a plurality of rear balls (17) are arranged between the rear top ring (14) and the rear positioning bulge (19).

5. The supporting frame according to claim 4, characterized in that the nut (5) is further sleeved with a front ball limiting ring (11) positioned between the front top ring (13) and the front positioning bulge (20), and the front ball (12) is positioned on the inner side of the front ball limiting ring (11); the rear part of the outer edge of the rear top ring (14) is connected with a rear ball limiting ring (16), and the rear balls (17) are located on the inner side of the rear ball limiting ring (16).

6. A support bracket as claimed in claim 5, characterised in that the outer diameter of the front ball retainer ring (11) is smaller than the outer diameter of the front top ring (13), the outer diameter of the front ball retainer ring (11) being smaller than the outer diameter of the front locating projection (20).

7. The supporting frame as claimed in claim 2, wherein the limit cover (9) is screwed with the screw cover (7), and a sealant (10) is filled between the limit cover (9) and the screw cover (7).

8. A support as claimed in any one of claims 1 to 7, wherein the telescopic rod (3) is connected at its upper end to a hook (4).