A four-bar barrier structure for electric tabletops

Abstract

This utility model provides a four-bar linkage shielding structure for an electric table, including a table frame, a lower table link, an upper table link, and a link cover. The link cover is fixed to the table frame via a lower link shaft mounted on the side in the Y direction. The middle section of the lower link shaft is machined with a spline, which passes through the side wall of the link cover and is fixed to the lower table link via the spline. The outermost side of the lower link shaft is fixed and limited by a C-shaped pin. The upper table link is fixed to the table frame via stepped bolts mounted on the side in the Y direction, and the gap between the stepped bolts and the link cover is covered by a plastic pad. The inner side of the stepped bolts is tightened with a nut. This structure optimizes the original upper and lower shielding covers, making them separate parts. The link shaft is mounted on the side in the Y direction, which reduces the opening size of the cover. At the same time, it optimizes the standard parts for fixing the link and shaft, increases the stability of the table movement, and minimizes the risk of exposed shaft structure.

Description

Technical Field

[0001] This utility model belongs to the field of automotive seat technology and relates to a four-bar blocking structure for electric tables. Background Technology

[0002] The assembly of electric tabletops is more complex than that of traditional mechanical tabletops. The addition of a motor and drive module to the original structure increases the difficulty of assembly, and the increased number of parts also reduces the aesthetic appeal of the electric tabletop, affecting gaps and surface finishes, potentially leading to user complaints. Therefore, it is necessary to optimize the upper and lower shielding structures at the four-link position of the electric tabletop. Summary of the Invention

[0003] In view of the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a four-link shielding structure for electric tabletops. This structure optimizes the original upper and lower shielding covers and makes them into separate parts. The connecting rod shaft is assembled in the Y direction from the side, which can reduce the opening size of the cover. At the same time, the standard parts for fixing the connecting rod and shaft are optimized to increase the stability of the tabletop movement and minimize the risk of the shaft structure being exposed.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A four-bar linkage shielding structure for an electric tabletop includes a tabletop frame, a lower tabletop linkage, and an upper tabletop linkage. The improvement involves adding a linkage cover at the clearance opening connecting the lower and upper tabletop linkages to the tabletop frame. The linkage cover is fixed to the tabletop frame via a lower linkage shaft mounted on the side in the Y-direction. The middle section of the lower linkage shaft is machined with a spline, which passes through the side wall of the linkage cover and is fixed to the lower tabletop linkage via the spline. The outermost side of the lower linkage shaft is fixed and limited by a C-shaped pin. The upper tabletop linkage is fixed to the tabletop frame via stepped bolts mounted on the side in the Y-direction, and a plastic pad is used to cover the gap between the stepped bolts and the linkage cover. The inner side of the stepped bolts is secured with a nut.

[0006] As a preferred embodiment of this invention, a shaft sleeve is installed at the friction position between the outer side of the lower connecting rod shaft and the connecting rod cover.

[0007] As a preferred embodiment of this invention, a screw bushing is installed at the gap between the stepped bolt and the table frame.

[0008] Advantages and beneficial effects of this utility model:

[0009] (1) The shielding structure provided by this utility model optimizes the original upper and lower shielding covers and makes them into separate parts. The connecting rod and rotating shaft are assembled in the Y direction on the side, which can reduce the opening size of the cover. At the same time, the standard parts for fixing the connecting rod and rotating shaft are optimized to increase the stability of the table movement and minimize the risk of the rotating shaft structure being exposed.

[0010] (2) The number of parts in the shielding structure provided by this utility model is reduced, and most of them are fastening standard parts, which are simple to assemble and reduce the cost of parts and production. The shielding structure has good sealing performance, exquisite appearance and improved user experience.

[0011] (3) The shielding structure provided by this utility model has high versatility and can be applied to the shielding structure of most four-bar electric tabletops. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0013] Figure 1 A schematic diagram of the overall structure of the four-bar blocking structure provided by this utility model;

[0014] Figure 2 This is a schematic diagram of the assembly of the lower connecting rod shaft and the stepped bolt of this utility model. Figure 1 ;

[0015] Figure 3 This is a schematic diagram of the assembly of the lower connecting rod shaft and the stepped bolt of this utility model. Figure 2 ;

[0016] Figure 4 This is an exploded view of the lower connecting rod shaft and its components according to this utility model.

[0017] Figure 5 This is an exploded view of the stepped bolt and its components according to the present invention.

[0018] Reference numerals: Tabletop frame 01, lower tabletop connecting rod 02, upper tabletop connecting rod 03, connecting rod cover 04, lower connecting rod pivot 05, pivot sleeve 06, C-shaped nail 07, step bolt 08, screw bushing 09, plastic pad 10, nut 11. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0021] like Figures 1 to 5 As shown, this embodiment provides a four-bar linkage shielding structure for an electric tabletop, including a tabletop frame 01, a lower tabletop linkage 02, and an upper tabletop linkage 03. The improvement is that a linkage cover 04 is provided at the clearance opening connecting the lower tabletop linkage 02, the upper tabletop linkage 03, and the tabletop frame 01. The linkage cover 04 is fixed to the tabletop frame 01 via a lower linkage shaft 05 mounted on the side in the Y direction. The middle section of the lower linkage shaft 05 is machined with a spline, which passes through the side wall of the linkage cover and is fixed to the lower tabletop linkage 02 via the spline. The outermost part of the lower linkage shaft 05 is fixed and limited by a C-shaped nail 07. The upper tabletop linkage 03 is fixed to the tabletop frame 01 via a stepped bolt 08 mounted on the side in the Y direction, and a plastic pad 10 is used to cover the gap between the stepped bolt 08 and the linkage cover 04 to improve the appearance of the electric tabletop. The inner side of the stepped bolt 08 is fastened with a nut 11.

[0022] Furthermore, in this embodiment, a shaft sleeve 06 is installed at the friction position between the outer side of the lower connecting rod shaft 05 and the connecting rod cover 04 to reduce the friction coefficient and noise impact; a screw bushing 09 is installed at the gap between the stepped bolt 08 and the table frame 01 to reduce the friction coefficient.

[0023] The above describes specific embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. A four-bar linkage shielding structure for an electric tabletop, comprising a tabletop frame, a lower tabletop linkage, and an upper tabletop linkage, characterized in that, A connecting rod cover is provided at the clearance opening connecting the lower connecting rod and the upper connecting rod to the table frame. The connecting rod cover is fixed to the table frame by a lower connecting rod shaft mounted on the side in the Y direction. The middle section of the lower connecting rod shaft is machined with a spline, which passes through the side wall of the connecting rod cover and is fixed to the lower connecting rod of the table by the spline. The outermost side of the lower connecting rod shaft is fixed and limited by a C-shaped nail. The upper connecting rod is fixed to the table frame by a stepped bolt mounted on the side in the Y direction, and the gap between the stepped bolt and the connecting rod cover is covered by a plastic pad. The inner side of the stepped bolt is tightened with a nut.

2. The four-bar linkage blocking structure for an electric tabletop according to claim 1, characterized in that, A shaft sleeve is installed on the outer side of the lower connecting rod shaft at the friction position with the connecting rod cover.

3. The four-bar linkage blocking structure for an electric tabletop according to claim 1, characterized in that, The step bolts are fitted with screw bushings at the gap between them and the table frame.

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