CN217337758U

CN217337758U - Crossbeam and have its lift table

Info

Publication number: CN217337758U
Application number: CN202123434451.0U
Authority: CN
Inventors: 项乐宏; 林涛; 邵同旺; 刘斌
Original assignee: Loctek Ergonomic Technology Co Ltd
Current assignee: Loctek Ergonomic Technology Co Ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-09-02
Anticipated expiration: 2031-12-30

Abstract

The utility model provides a beam and a lifting table with the same, which comprises a hollow square tube, wherein at least one connecting plate which can deform under stress is arranged in the inner cavity of the end part of the square tube, and the connecting plate is provided with a connecting part used for connecting with other parts; the connecting plate is an arc-shaped plate, and the deformation trend of the arc-shaped outer side surface of the arc-shaped plate is opposite to that of the connecting plate when the connecting plate is stressed. The utility model provides a crossbeam and have its lift table sets up and does not need welded fastening at the connecting plate of crossbeam main part tip, realizes the firm connection between connecting plate and the crossbeam main part through the mode of connecting the deformation, simple to operate, reduce cost.

Description

Crossbeam and have its lift table

Technical Field

The utility model belongs to the technical field of lift table technique and specifically relates to a crossbeam and have its lift table.

Background

The lifting table is an office table with adjustable height, can adjust the height according to the height, sitting posture and standing posture of a person, and generally comprises an electric lifting table and a manual lifting table. An electric lifting table in the prior art, in particular to an electric lifting table driven by two motors, structurally comprises a table board, a base, two lifting table legs and a cross beam for connecting the two table legs. The beam structure not only plays a role of supporting the desk plate, but also is used for fixedly connecting structures such as desk legs and the like, so the structural stability of the beam is very important. The beam structure connected with the lower end face of the existing lifting table is usually a rectangular frame structure assembled by four independent beam structures, corresponding connecting plates are generally assembled at two ends of two beams in the connection between the beams, and the other two beams are connected with the connecting plates through fasteners to realize the rapid assembly between the beams. In the existing single-beam structure, the connecting plate and the beam main body are fixed in a welding mode, so that the welding requirement is high, and the overall cost is correspondingly increased.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem be, in order to overcome the defect among the prior art, provide a crossbeam and have its lift table, set up and do not need welded fastening at the connecting plate of crossbeam main part tip, realize the firm connection between connecting plate and the crossbeam main part through the mode of connecting the deformation, simple to operate, reduce cost.

In order to solve the problems, the utility model provides a beam, which comprises a hollow square tube, wherein at least one connecting plate which can deform under stress is arranged in the inner cavity of the end part of the square tube, and the connecting plate is provided with a connecting part used for connecting with other parts; the connecting plate is an arc-shaped plate, and the arc of the outer side surface of the arc-shaped plate is opposite to the deformation trend of the connecting plate when stressed.

Compared with the prior art, the cross beam of the utility model has the following advantages:

in the beam structure of the utility model, corresponding connecting plates are assembled in the end inner cavity of a square pipe (beam main body), and the connecting plates are arc-shaped structures, when the beam end is connected with other parts, the connecting plates are connected with the connecting plates on the connecting plates through corresponding fasteners, and acting force is generated along the axial direction of the square pipe in the connection process, so that the connecting plates find deformation, the outer side wall of the connecting plates is expanded and deformed in the deformation process, larger abutting acting force is generated between the outer wall of the connecting plates and the inner side wall of the square pipe, the connecting plates are ensured not to be pulled out of the inner cavity of the square pipe when the connecting plates are connected with other parts, thereby ensuring the stable connection of the beam structure and other parts, the connecting plates only need to be pressed into the end inner cavity of the square pipe along the outward direction of an arc concave surface in advance in the whole process, and do not need to be correspondingly welded, the process is saved, and the cost is reduced.

As an improvement, the connecting part is a threaded hole arranged in the middle of the connecting plate. In this structure, through set up the screw hole on the connecting plate, make things convenient for being connected of this connecting plate and other parts more, connecting bolt is worn to establish by the owner's needs on other parts during the connection, through the screw hole cooperation on connecting bolt tip and the connecting plate, can produce the effort to the connecting plate at the in-process that connecting bolt screwed up for the connecting plate warp, simple structure, simple to operate.

And the middle part of the connecting plate is provided with a mounting hole, a fixing ring is assembled in the mounting hole, and an inner hole of the fixing ring is a threaded hole. In the above-mentioned improvement structure, through set up a solid fixed ring in the middle part of the connecting plate to gu fixed ring's hole is processed into the screw hole, can use the hole of directly choosing for use to construct as the standard ring of screw hole, need not reduce the processing degree of difficulty, reduction in production cost for the screw hole of processing on the connecting plate.

In another improvement, the number of the connecting plates is two, and the two connecting plates are arranged at intervals along the same arc angle; the same fixing ring is assembled in the mounting holes of the two connecting plates, so that the two connecting plates are connected into an integral structure. In the above-mentioned improvement structure, set up two connecting plates to interval distribution when the crossbeam is connected through corresponding connecting plate and other parts, more enough bears bigger effort, guarantees connection structure's stability and fastness.

The improved structure is characterized in that a limiting bulge is convexly arranged on the circumferential outer side wall of the connecting plate, and a limiting through hole for clamping and matching the limiting bulge is correspondingly arranged on the side wall of the square pipe; when the connecting plate is assembled in the inner cavity of the square pipe, the limiting bulges correspond to the limiting through holes, and when the connecting plate is deformed under stress, the corresponding limiting bulges are inserted and matched into the limiting through holes. In the above-mentioned improved structure, spacing arch and spacing through-hole structure's setting for the connecting plate is after the atress warp, and assurance that can be better is fixed with being connected of square pipe, makes the connecting plate more bear bigger connecting force.

And the connecting plate is a rectangular plate, two limiting bulges distributed at intervals are arranged on four side walls of the rectangular plate, when the connecting plate is deformed by the connecting acting force, the limiting bulges are correspondingly matched in the limiting through holes respectively, and the four side walls of the rectangular plate are abutted against the inner side walls of the square tubes respectively. In the improved structure, the connecting plate is also a rectangular plate, and when the connecting plate is connected and stressed to deform, four side edges of the connecting plate are respectively abutted and matched with each side wall of the square pipe, so that the connecting strength is increased; all be equipped with two spacing archs on four lateral walls of other rectangular plate, further promote connecting plate and warp back and square tub of joint strength, improve the holding capacity when connecting plate is connected with other parts promptly.

And the two ends of the positioning pipe are respectively abutted and limited between the two connecting plates. In the above-mentioned improvement structure, realize the injecing to the distance between two connecting plates through setting up of location tube structure to the spacing arch that corresponds on the better assurance two connecting plates can with the accurate alignment of each spacing through-hole on the square tub of lateral wall, guarantee connection structure's stability.

In addition, the utility model also provides a lifting table, including the table, still include the crossbeam of above-mentioned arbitrary one kind structure, the crossbeam is connected to be fixed the lower terminal surface of table. Through improving the fixed form of crossbeam tip and connecting plate, effectively improve overall structure's installation effectiveness, saved connecting plate and square tub of welding process, saved the cost.

Drawings

Fig. 1 is a partial schematic view of the cross beam of the present invention. (Single block connecting plate)

Fig. 2 is a partially exploded view of the cross beam of fig. 1.

Fig. 3 is a schematic view of a local explosion structure of a beam in the form of two connecting plates in the present invention.

Fig. 4 is an exploded view of the connecting plate, fixing ring and positioning sleeve connecting structure in the beam structure of fig. 2.

Fig. 5 is a partial schematic view of another structure of the cross beam of the present invention. (two connecting plates)

Description of reference numerals:

1-square tube, 1.1-limiting through hole, 2-connecting plate, 2.1-mounting hole, 2.2-limiting projection, 3-fixing ring and 4-positioning tube.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

In the description of the present invention, it should be noted that the terms "inner side wall", "outer side wall", "middle part" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; 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 invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and 2, the utility model provides a beam, which comprises a hollow square tube 1, at least one connection plate 2 deformable under stress is arranged in the inner cavity of the end part of the square tube 1, and the connection plate 2 is provided with a connection part for connecting with other parts; the connecting plate 2 is an arc-shaped plate, and the deformation trend of the arc-shaped outer side surface of the arc-shaped plate is opposite to that of the connecting plate 2 when the connecting plate is stressed. In this structure, when the tip of crossbeam is connected with other crossbeam or fixed plate, through the effort that acts on connecting portion, order about connecting plate 2 and take place to warp to the trend that connecting plate 2 warp is opposite with the arc structure of connecting plate 2, thereby makes at connecting plate 2 atress deformation in-process, and the circumference of connecting plate 2 outside props tightly fixedly towards square 1 inside wall direction, finally realizes that the crossbeam is fixed with being connected of other parts. In this structure, only need with connecting plate 2 between the installation tight fit to square 1 position of setting for in the inner chamber of pipe can, need not be like prior art with connecting plate 2 and square 1 welded fastening in advance to simplify the connection step, reduce cost. Specifically, in this embodiment, as shown in fig. 2, when the connecting plate 2 is assembled to the inner cavity of the square pipe 1, the concave part of the arc-shaped surface of the connecting plate 2 is tightly fitted to the inner cavity of the square pipe 1, when the connecting part at the middle part of the connecting plate 2 receives the connecting acting force, the arc-shaped surface at the middle part of the connecting plate 2 can deform outwards, and in the deformation process, the peripheral wall of the connecting plate 2 expands outwards, so as to realize the tight connection with the inside of the square pipe 1.

In this embodiment, connecting portion are the screw hole of setting at connecting plate 2 middle part, and this kind of structure makes things convenient for the tip of crossbeam to be connected with other parts more, only need twist corresponding connecting bolt in the screw hole when connecting, and under connecting bolt's connection pulling effect, connecting plate 2 can take place to warp, makes the frictional force between its lateral wall and the square 1 inner wall of pipe bigger and bigger, realizes firm the connection.

As a preferable structure, in the present embodiment, a circular mounting hole 2.1 is formed in the middle of the connecting plate 2, a fixing ring 3 is fitted in the mounting hole 2.1, and an inner hole of the fixing ring 3 is a threaded hole. More specifically, in this structure, the fixing ring 3 may be fixed in the mounting hole 2.1 by welding, or may be fixed in the mounting hole 2.1 by riveting, as shown in fig. 2. The middle in this structure means a place close to the geometric center of the web 2.

On the other hand, when the cross beam is connected with other components, a relatively large tensioning force may be applied to the cross beam, and at this time, the connection force between one of the connection plates 2 after deformation and the inner wall of the square tube 1 is insufficient, so that the connection between the cross beam and the other components is unstable, and for this reason, preferably, the two connection plates 2 are provided, and the two connection plates 2 are arranged at intervals along the same arc angle; the same fixing ring 3 is assembled in the mounting holes 2.1 of the two connecting plates 2, the fixing ring 3 is a substantially cylindrical connecting pipe structure, namely, the two ends of the fixing ring 3 are respectively assembled and fixed in the mounting holes 2.1 of the two connecting plates 2, so that the two connecting plates 2 are connected into an integrated structure, the connecting strength between the connecting plates 2 and the square pipes 1 is effectively enhanced through the abutting action force between the two connecting plates 2 and the inner walls of the square pipes 1, and the connecting structure strength between the cross beam and other parts is further ensured, as shown in fig. 3 and 4. In this structure, when the crossbeam tip is connected with other parts, the connecting piece is joined in marriage the dress in solid fixed ring 3, through 3 axial motion of the solid fixed ring of pulling, orders about two connecting plates 2 and warp simultaneously for the lateral wall of two connecting plates 2 expands outward simultaneously and further supports tightly spacing on square 1 inner walls of pipe, effectively promotes connection structure's intensity.

In this embodiment, more specifically, as shown in fig. 1 and 5, a limiting protrusion 2.2 is convexly arranged on the circumferential outer side wall of the connecting plate 2, and a limiting through hole 1.1 for clamping and matching the limiting protrusion 2.2 is correspondingly arranged on the side wall of the square tube 1; in the structure, connecting plate 2 is with square 1 inner wall matched with rectangular plate, and equal evagination be equipped with two spacing archs 2.2 on four lateral walls of rectangular plate, corresponding being equipped with on four lateral walls of square 1 is used for supplying spacing protruding 2.2 complex spacing through-hole 1.1, and when connecting plate 2 joins in marriage the dress to square 2 inner chamber in, each spacing arch 2.2 is corresponding with a plurality of spacing through-hole 1.1, and when connecting plate 2 is connected the atress and is out of shape, each spacing arch 2.2 cartridge cooperation is to corresponding spacing through-hole 1.1 in, four lateral walls of rectangular plate respectively with square 1 inside wall of pipe counterbalance, realize the stable and firm connection between connecting plate 2 and the square 1 of managing, make the crossbeam be connected when fixed with other parts, connecting plate 2 can bear bigger taut effort. In this structure, all set up spacing arch 2.2 on the lateral wall of two connecting plates 2, be equipped with two circles and each spacing protruding 2.2 and correspond the spacing through-hole 1.1 of complex along the axial on the lateral wall of square 1 inner chamber of pipe, as shown in figure 3.

On the other hand, when connecting plate 2 was two in the above-mentioned structure, when in order to guarantee that two connecting plates 2 assembled to square 1 inner chamber of pipe, each spacing arch 2.2 can correspond accurately with each spacing through-hole 1.1 on each lateral wall of square 1, still the cover is equipped with registration arm 4 in the outside of solid fixed ring 3 in this embodiment, and the both ends of registration arm 4 lean on respectively to lean on spacing between two connecting plates 2 to realize that the distance between two connecting plates 2 is injectd, as shown in fig. 3, 4.

Specifically, in this structure, when connecting plate 2 is two, gu fixed ring 3's both ends and two connecting plates 3 can adopt the riveted form to install the structure of formula as an organic whole in advance, and with the outside of 4 suit of registration arm at holding ring 3 when the installation, be used for guaranteeing the distance between two connecting plates 3, and this integral coupling assembling structure of preassembleing can be that the producer is preassembled in square 1 corresponding position in the pipe, also by the user from the line with its corresponding position in slowly pressure equipment to square 1 inner chamber of pipe, effectively improve the installation effectiveness, the welding processes of current connecting plate 2 and square 1 have been saved.

Additionally, the utility model discloses in still disclose a lift table, it includes the table, and aforementioned crossbeam, and the crossbeam is connected and is fixed the lower terminal surface at the table, in the in-service use, can connect four crossbeams that are the rectangle and arrange under the table usually, include the crossbeam that two levels set up and the crossbeam of two vertical settings respectively, and wherein two levels set up the crossbeam both ends and pass through connecting plate 2 and two crossbeam of vertical setting to be connected fixedly, in order to form the frame of a rectangle, a structural strength for increasing the table, other parts of convenient installation below the table simultaneously.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and such changes and modifications will fall within the scope of the present invention.

Claims

1. A cross beam, characterized by: the pipe joint comprises a hollow square pipe (1), wherein at least one connecting plate (2) which is deformable under stress is assembled in an inner cavity at the end part of the square pipe (1), and a connecting part used for being connected with other parts is arranged on the connecting plate (2); the connecting plate (2) is an arc-shaped plate, and the arc-shaped outer side surface of the arc-shaped plate has an opposite deformation trend when the connecting plate (2) is connected and stressed.

2. The beam according to claim 1, wherein: the connecting part is a threaded hole arranged in the middle of the connecting plate (2).

3. The beam according to claim 2, wherein: the middle part of connecting plate (2) is equipped with mounting hole (2.1), join in marriage in mounting hole (2.1) and be equipped with solid fixed ring (3), the hole of solid fixed ring (3) is the screw hole.

4. The beam according to claim 3, wherein: the number of the connecting plates (2) is two, and the two connecting plates (2) are arranged at intervals along the same arc angle; the same fixing ring (3) is assembled in the mounting hole (2.1) of the two connecting plates (2) so that the two connecting plates (2) are connected into an integral structure.

5. The beam according to claim 3 or 4, wherein: a limiting bulge (2.2) is convexly arranged on the circumferential outer side wall of the connecting plate (2), and a limiting through hole (1.1) for clamping and matching the limiting bulge (2.2) is correspondingly arranged on the side wall of the square pipe (1); when the connecting plate (2) is assembled in the inner cavity of the square pipe (1), the limiting bulges (2.2) correspond to the limiting through holes (1.1), and when the connecting plate (2) is connected and deformed under stress, the corresponding insertion of the limiting bulges (2.2) is matched into the limiting through holes (1.1).

6. The beam according to claim 5, wherein: the connecting plate (2) is a rectangular plate, and two limiting bulges (2.2) distributed at intervals are arranged on four side walls of the rectangular plate; when the connecting plate (2) is deformed by a connecting acting force, the limiting protrusions (2.2) are correspondingly matched in the limiting through holes (1.1) respectively, and the four side walls of the rectangular plate are abutted against the inner side walls of the square tubes (1) respectively.

7. The beam according to claim 6, wherein: the outer portion of the fixing ring (3) is sleeved with a positioning tube (4), and two ends of the positioning tube (4) are respectively abutted and limited between the two connecting plates (2).

8. The utility model provides a lifting table, includes the table, its characterized in that: the table board further comprises a cross beam as claimed in any one of claims 1 to 7, wherein the cross beam is fixedly connected to the lower end face of the table board.