CN210901917U

CN210901917U - Spline connection piece and lifting table screw rod

Info

Publication number: CN210901917U
Application number: CN201921149008.9U
Authority: CN
Inventors: 项乐宏; 蒋领辉; 陶闽泉; 吴凯
Original assignee: Loctek Ergonomic Technology Co Ltd
Current assignee: Loctek Ergonomic Technology Co Ltd
Priority date: 2019-07-22
Filing date: 2019-07-22
Publication date: 2020-07-03
Anticipated expiration: 2029-07-22

Abstract

The utility model discloses a spline connection piece and lift table lead screw, lift table lead screw is including nested interior pole and outer tube mutually, interior pole one end has the polygon spliced pole, set up the interior tooth's socket that extends along length direction on the internal perisporium of outer tube, the spline connection piece is established to the cover on the polygon spliced pole, the spline connection piece is including the whole body that is the annular structure, run through on the body and set up the polygon logical groove that matches with the polygon spliced pole structure, outside protruding flange structure that is formed with at least one and matches with interior tooth's socket structure on the outer peripheral face of body. The technical scheme can effectively reduce the relative rotation amount between the inner rod and the outer pipe after assembly, greatly improve the structural stability and the transmission effect and reduce the noise.

Description

Spline connection piece and lifting table screw rod

Technical Field

The utility model relates to a lift table accessory technical field especially relates to a spline connection piece and lift table lead screw.

Background

The lifting table is widely favored by the market due to the characteristic that the height of the table legs can be conveniently adjusted, and the lifting action of the lifting table is generally realized by a screw rod. Generally, for the purpose of lifting, the screw rod generally comprises two nested pipe fittings and is driven by a motor, and the two pipe fittings are guided, limited and driven by a key groove structure. However, the problem of large clearance caused by dimensional tolerance of the structure of the key groove connection generally exists, so that the rotary type noise of the two pipe fittings is large.

SUMMERY OF THE UTILITY MODEL

To the above problems existing in the prior art, a spline connection piece and a lifting desk screw rod are provided for effectively reducing the relative rotation amount between an inner rod and an outer pipe after assembly, so as to overcome the technical defects.

The specific technical scheme is as follows:

the utility model provides a spline connection piece, includes the whole body that is ring structure, runs through on the body and has seted up a polygon through groove, and the outside arch is formed with at least one flange structure on the outer peripheral face of body.

Preferably, the body is further provided with at least one weight-reducing hole which penetrates longitudinally.

Preferably, the polygonal through groove is of a regular hexagon structure as a whole.

Preferably, the number of the flange structures is six, and the six flange structures are annularly and uniformly arranged on the peripheral wall of the body.

Preferably, the number of the lightening holes is six, and the six lightening holes are annularly and uniformly distributed on the body.

Preferably, the lightening hole is integrally in a convex structure, and the convex part is opposite to the flange structure.

The utility model also provides a lift table lead screw, including nested interior pole and outer tube mutually, interior pole one end has the polygon spliced pole, sets up the interior tooth's socket that extends along length direction on the internal perisporium of outer tube, and the polygon spliced pole upper cover is equipped with as above spline connection piece, and the polygon on the body of spline connection piece leads to the groove and matches with the polygon spliced pole structure, and the flange structure matches with interior tooth's socket structure.

The better still includes a connector, and the connector cover is located on the polygon spliced pole and is supported with the terminal surface of spline connection piece, and the connector also offers the polygon notch that matches with polygon spliced pole structure towards the one end of spline connection piece, also has the flange that matches with interior tooth's socket structure on the periphery wall of connector.

The beneficial effects of the above technical scheme are that:

the lifting table screw rod comprises an inner rod and an outer tube which are nested mutually, and the spline connecting piece is provided with a polygonal through groove and a flange structure, so that the relative rotation amount between the inner rod and the outer tube can be effectively reduced after assembly, the structural stability and the transmission effect are greatly improved, and the noise is reduced.

Drawings

FIG. 1 is a perspective view of the spline connection piece of the present invention;

FIG. 2 is a perspective view of the lifting table screw of the present invention;

FIG. 3 is a perspective view of the lifting table screw of the present invention after the outer tube is detached;

fig. 4 is a split exploded view of the lifting table screw rod of the present invention.

Detailed Description

In order to make the technical means, creation features, achievement purposes and effects of the present invention easy to understand, the following embodiments are specifically illustrated in conjunction with the accompanying drawings.

In the first embodiment, the first step is,

referring to fig. 1, the spline connection piece provided in this embodiment includes a body 1 that is integrally in an annular structure, a polygonal through groove 2 is formed through the body 1, and at least one flange structure 3 is formed on an outer peripheral surface of the body 1 in an outward protruding manner.

In a preferred embodiment, the body 1 is further provided with at least one lightening hole 4 which penetrates in the longitudinal direction. Further, the polygonal through groove 2 is of a regular hexagon structure as a whole. Further, the number of the flange structures 3 is six, and the six flange structures 3 are circumferentially and uniformly arranged on the outer peripheral wall of the body 1. Further, the number of the lightening holes 4 is six, and the six lightening holes 4 are annularly and uniformly distributed on the body 1. Furthermore, the lightening holes 4 are integrally in a convex structure, and the convex parts are opposite to the flange structure 3. So that the thickness of each part is uniform.

In the second embodiment, the first embodiment of the method,

referring to fig. 2 to 4, the lifting table screw rod provided by the embodiment includes an inner rod 5 and an outer tube 6 which are nested with each other, wherein one end of the inner rod 5 is provided with a polygonal connecting column 8, an inner tooth groove 7 extending along the length direction is formed in the inner peripheral wall of the outer tube 6, the polygonal connecting column 8 is sleeved with a spline connecting sheet as described in the first embodiment, the polygonal through groove 2 on the body 1 of the spline connecting sheet is structurally matched with the polygonal connecting column 8, and the flange structure 3 is structurally matched with the inner tooth groove 7.

Based on above-mentioned technical scheme, lift table lead screw is including the interior pole 5 and the outer tube 6 of mutually nested, and the spline connection piece has polygon through groove 2 and flange structure 3 for can effectively reduce the relative rotation volume between interior pole 5 and outer tube 6 after the assembly, promote structural stability and transmission effect greatly, and the noise reduction problem.

In a preferred embodiment, the lifting desk screw rod further comprises a connector 9, the connector 9 is sleeved on the polygonal connecting column 8 and abuts against one end surface of the spline connecting sheet, a polygonal notch matched with the polygonal connecting column 8 in structure is also formed in one end, facing the spline connecting sheet, of the connector 9, and a flange matched with the inner tooth groove 7 in structure is also arranged on the outer peripheral wall of the connector 9.

In the concrete use, as shown in fig. 2 to 4, one end of the inner rod 5 is used for being in transmission connection with the driving mechanism and providing a rotating force, the other end of the inner rod is sequentially sleeved with the spline connecting sheet and the connector 9, the outer tube 6 is sleeved outside the inner rod 5, the spline connecting sheet and the connector 9, and the periphery of the outer tube is screwed with a threaded seat (not shown in the figure), and the threaded seat is fixed on an inner tube of the lifting table leg. After 5 rotations in actuating mechanism drives, interior pole 5 drives outer tube 6 through spline connection piece and connector 9 and rotates, simultaneously because the limiting displacement of screw thread seat and the guide effect of interior tooth's socket 7 and flange structure 3, the linear elevating movement of rotation type can be done for interior pole 5 and inside pipe fitting to outer tube 6, and then the outside pipe fitting that promotes the table leg is the lift action for inside pipe fitting to the lift effect of table that realizes going up and down.

Obviously, in the lifting action and the rotation action of outer tube 6, because the existence of spline connection piece, for the keyway formula guide structure of current universal adoption, can effectively reduce the relative rotation volume between interior pole 5 and outer tube 6 to promote structural stability and transmission effect.

The foregoing is only a preferred embodiment of the present invention, which is illustrative, not limiting. Those skilled in the art will appreciate that many variations, modifications, and equivalents may be made thereto without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a spline connection piece, its characterized in that is including whole body (1) that is the loop configuration, run through on body (1) and seted up a polygon and lead to groove (2), the outside arch is formed with at least one flange structure (3) on the outer peripheral face of body (1).

2. A spline connection piece according to claim 1, characterized in that the body (1) is also provided with at least one lightening hole (4) running through it in the longitudinal direction.

3. A spline connection piece according to claim 1, characterized in that the polygonal through slot (2) is of regular hexagonal configuration overall.

4. A spline connection piece according to claim 2, characterized in that the number of flange structures (3) is six and that six flange structures (3) are circumferentially and uniformly arranged on the peripheral wall of the body (1).

5. Spline connection piece according to claim 4, characterized in that the number of lightening holes (4) is six and that six lightening holes (4) are circumferentially and evenly arranged on the body (1).

6. A spline connection piece according to claim 5, characterized in that the lightening holes (4) are of a "male" type configuration overall, with the male portion facing the flange configuration (3).

7. The utility model provides a lift desk lead screw, its characterized in that, including nested interior pole (5) and outer tube (6) mutually, interior pole (5) one end has polygon spliced pole (8), set up interior tooth's socket (7) that extend along length direction on the internal perisporium of outer tube (6), the cover is equipped with the spline connection piece as in any one of above claim 1 to 6 on polygon spliced pole (8), just polygon logical groove (2) on the body (1) of spline connection piece with polygon spliced pole (8) structure matches, flange structure (3) match with interior tooth's socket (7) structure.

8. The lifting desk screw rod of claim 7, further comprising a connector (9), wherein the connector (9) is sleeved on the polygonal connecting column (8) and abuts against one end surface of the spline connecting sheet, a polygonal notch matched with the polygonal connecting column (8) in structure is also formed in one end, facing the spline connecting sheet, of the connector (9), and a flange matched with the inner tooth socket (7) in structure is also formed in the outer peripheral wall of the connector (9).