Adjustable sofa armrest telescoping mechanism

Abstract

The utility model relates to an adjustable sofa armrest telescopic mechanism. Comprising a linkage rod, a connecting assembly and adjusting assemblies, in the structure, the adjusting assemblies are arranged on the peripheral side of the linkage rod and comprise the upper left adjusting plate, the lower left adjusting plate, the upper right adjusting plate and the lower right adjusting plate, when the adjusting assembly on one side of the linkage rod is damaged, accurate replacement can be achieved, the two adjusting plates on the side do not need to be replaced, and time and labor are saved; in addition, the left upper adjusting plate, the left lower adjusting plate, the right upper adjusting plate and the right lower adjusting plate are all rotationally connected with the linkage rod through a connecting assembly, the blocking situation occurring in the gear meshing process is avoided, the situation that the connecting assembly needs to be replaced due to the blocking situation is avoided, and maintenance is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of furniture adjustment, in particular to an adjustable sofa armrest telescopic mechanism. Background Art

[0002] A sofa usually includes a seat assembly and a back assembly, with armrests on both sides of the seat assembly. Traditional armrests are generally made of metal or wood; such armrests are relatively bulky; therefore, in order to reduce the cost of product packaging and transportation, some manufacturers will set the sofa armrests to a hollow side panel structure. This sofa armrest includes a fixed inner panel connected to the sofa, and movable outer panels are provided at intervals on the left and right parallel to the fixed inner panel. In order to allow the movable outer panel to extend and retract left and right relative to the fixed inner panel, an adjustment mechanism is provided between the two. Relying on the action of the adjustment mechanism, the movable outer panel can freely move closer to or away from the fixed inner panel. Under the premise of ensuring the support function of the armrest, the overall packaging volume of the sofa is reduced, and the cabinet capacity of the sofa is increased.

[0003] The existing patent CN 202410477596.8 provides an adjustment mechanism and its application, by arranging an adjustment rod group consisting of a first connecting rod and a second connecting rod between the connecting components in the adjustment mechanism, and hingedly connecting the linkage rod to the linkage end of the first connecting rod and the linkage end of the second connecting rod; when the adjustment mechanism is subjected to external force, the linkage rod can link the connecting end of the first connecting rod and the connecting end of the second connecting rod to drive the two connecting parts closer to or away from each other, so that the connecting parts can be quickly opened or quickly folded; by applying the above-mentioned adjustment mechanism to the armrest of the sofa, the movable vertical plate and the fixed vertical plate of the armrest can be freely opened or folded, thereby changing the width of the sofa armrest.

[0004] However, in actual use of the above patent, once a part of a connecting component is damaged and needs to be replaced, the connecting component needs to be replaced as a whole, and the rotating shafts on the two first connecting rods or the two second connecting rods connected to the connecting component need to be removed and replaced; and the closing and opening of the two connecting components are achieved by the engagement of the first tooth portion and the second tooth portion, and jamming may occur during actual operation, resulting in the need to replace the two first connecting rods and the two second connecting rods in the above technology, and the maintenance process is relatively cumbersome. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an adjustable sofa armrest telescopic mechanism.

[0006] In order to solve the above technical problems, the technical solution of the utility model is: an adjustable sofa armrest telescopic mechanism, the innovation of which is that it includes a linkage rod, a connecting assembly and an adjusting assembly.

[0007] The linkage rod is arranged vertically;

[0008] The adjustment assembly includes four adjustment plates distributed on both sides of the linkage rod, namely an upper left adjustment plate and a lower left adjustment plate on the left side of the linkage rod, and an upper right adjustment plate and a lower right adjustment plate on the right side of the linkage rod;

[0009] The upper left adjustment plate, the lower left adjustment plate, the upper right adjustment plate and the lower right adjustment plate are all rotatably connected to the linkage rod via a connecting assembly, and the upper left adjustment plate, the lower left adjustment plate, the upper right adjustment plate and the lower right adjustment plate are all rotatably connected to the connecting assembly to which they are connected;

[0010] By pulling the linkage rod, the adjustment plates on both sides can be driven to move away from or closer to each other at the same time, thereby switching the adjustment plates between the open state and the retracted state.

[0011] Furthermore, the upper left adjustment plate, lower left adjustment plate, upper right adjustment plate and lower right adjustment plate are all L-shaped structures, and the upper left adjustment plate and lower left adjustment plate are both arranged on the front side of the linkage rod, and the upper right adjustment plate and lower right adjustment plate are both arranged on the rear side of the linkage rod, the upper left adjustment plate extends horizontally backward away from the side of the linkage rod, and the upper right adjustment plate extends horizontally forward away from the side of the linkage rod.

[0012] Furthermore, the connection components all have the same structure, which is a Z-shaped connection plate, so this structure has four Z-shaped connection plates;

[0013] The first Z-shaped connecting plate and the second Z-shaped connecting plate are respectively arranged on the front and rear sides of the linkage rod, and the length sides of the first Z-shaped connecting plate and the second Z-shaped connecting plate are connected to the linkage rod through a first rotating shaft, and the length sides of the first Z-shaped connecting plate and the second Z-shaped connecting plate are respectively connected to the left upper adjustment plate and the right upper adjustment plate through a second rotating shaft and a third rotating shaft;

[0014] The third Z-shaped connecting plate and the fourth Z-shaped connecting plate are respectively arranged on the front and rear sides of the linkage rod, and one side of the length of the third Z-shaped connecting plate and the fourth Z-shaped connecting plate is connected to the linkage rod through the fourth rotating shaft, and the other side of the length of the third Z-shaped connecting plate and the fourth Z-shaped connecting plate is connected to the left lower adjustment plate and the right lower adjustment plate through the fifth rotating shaft and the sixth rotating shaft respectively.

[0015] The third Z-shaped connecting plate and the fourth Z-shaped connecting plate are connected to the linkage rod through the fourth rotating shaft, and the length side of the first Z-shaped connecting plate and the second Z-shaped connecting plate are connected to the linkage rod through the first rotating shaft, which can reduce the number of holes opened on the linkage rod and ensure the structural strength of the linkage rod.

[0016] Furthermore, a horizontal limit block is provided on the linkage rod above each of the connecting components, and the horizontal limit block enables the opening state of the adjustment component to be in a horizontal state.

[0017] Furthermore, a groove is provided on the linkage rod below the upper left adjustment plate and the upper right adjustment plate to facilitate the folding or opening of the upper left adjustment plate and the upper right adjustment plate.

[0018] Furthermore, the distance between the fourth rotating shaft and the lowest end of the linkage rod is smaller than the distance between the fourth rotating shaft and the lower left adjustment plate and the lower right adjustment plate away from the side of the linkage rod, so that the lower left adjustment plate and the lower right adjustment are placed below the linkage rod in the folded state, shortening the length of the linkage rod and saving the preparation process.

[0019] The advantages of the present invention are:

[0020] In this structure, the adjustment components are arranged on the side of the linkage rod and are divided into an upper left adjustment plate, a lower left adjustment plate, an upper right adjustment plate and a lower right adjustment plate. When the adjustment component on one side of the linkage rod is damaged, it can be accurately replaced without replacing both adjustment plates on that side, reducing the number of disassembled parts and saving time and effort. In addition, the upper left adjustment plate, the lower left adjustment plate, the upper right adjustment plate and the lower right adjustment plate are all rotatably connected to the linkage rod through a connecting component, avoiding the jamming that may occur during the gear meshing process, avoiding the need to replace the connecting component as a result, and facilitating maintenance.

[0021] A horizontal limit block is provided on the linkage rod above each connecting assembly, and the horizontal limit block enables the opening state of the adjustment assembly to be in a horizontal state.

[0022] A groove is provided on the linkage rod below the upper left adjustment plate and the upper right adjustment plate to facilitate the folding or opening of the upper left adjustment plate and the upper right adjustment plate.

[0023] The distance between the fourth rotating shaft and the lowest end of the linkage rod is smaller than the distance between the fourth rotating shaft and the side of the lower left adjustment plate and the lower right adjustment plate away from the linkage rod, so that the lower left adjustment plate and the lower right adjustment plate are placed below the linkage rod in the folded state, shortening the length of the linkage rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the open state of the utility model.

[0025] Figure 2 It is a top view of the utility model in the opened state.

[0026] Figure 3 It is a schematic diagram of the folded state of the utility model. DETAILED DESCRIPTION

[0027] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0028] like Figure 1-3 An adjustable sofa armrest telescopic mechanism shown includes a linkage rod 1, a connecting assembly 2 and an adjusting assembly 3. In this embodiment, there are four connecting assemblies 2.

[0029] The linkage rod 1 is arranged vertically.

[0030] A horizontal limit block 4 is provided on the linkage rod 1 above each connecting assembly 2 , and the horizontal limit block 4 enables the opening state of the adjustment assembly 3 to be in a horizontal state.

[0031] A groove 5 is provided on the linkage rod 1 below the upper left adjustment plate 31 and the upper right adjustment plate 33 .

[0032] The adjustment assembly 3 includes four adjustment plates distributed on both sides of the linkage rod 1, namely an upper left adjustment plate 31 and a lower left adjustment plate 32 arranged on the left side of the linkage rod 1, and an upper right adjustment plate 33 and a lower right adjustment plate 34 arranged on the right side of the linkage rod 1.

[0033] The upper left adjustment plate 31, the lower left adjustment plate 32, the upper right adjustment plate 33 and the lower right adjustment plate 34 are all L-shaped structures, and the upper left adjustment plate 31 and the lower left adjustment plate 32 are both arranged on the front side of the linkage rod 1, and the upper right adjustment plate 33 and the lower right adjustment plate 34 are both arranged on the rear side of the linkage rod 1. The upper left adjustment plate 31 extends horizontally backward away from one side of the linkage rod 1, and the upper right adjustment plate 33 extends horizontally forward away from one side of the linkage rod 1.

[0034] The upper left adjustment plate 31, the lower left adjustment plate 32, the upper right adjustment plate 33 and the lower right adjustment plate 34 are all rotatably connected to the linkage rod 1 through a connecting component 2, and the upper left adjustment plate 31, the lower left adjustment plate 32, the upper right adjustment plate 33 and the lower right adjustment plate 34 are all rotatably connected to the connecting component 2 to which they are connected. The rotatable connections in this embodiment are all connected through a rotating shaft.

[0035] The connection components 2 have the same structure, which is a Z-shaped connection plate. Therefore, this structure has four Z-shaped connection plates.

[0036] The first Z-shaped connecting plate 21 and the second Z-shaped connecting plate 22 are respectively arranged on the front and rear sides of the linkage rod 1, and one side of the length of the first Z-shaped connecting plate 21 and the second Z-shaped connecting plate 22 is connected to the linkage rod 1 through the first rotating shaft 6, and the other side of the length of the first Z-shaped connecting plate 21 and the second Z-shaped connecting plate 22 is connected to the upper left adjustment plate 31 and the upper right adjustment plate 33 through the second rotating shaft and the third rotating shaft respectively.

[0037] The third Z-shaped connecting plate 23 and the fourth Z-shaped connecting plate 24 are respectively arranged on the front and rear sides of the linkage rod 1, and one side of the length of the third Z-shaped connecting plate 23 and the fourth Z-shaped connecting plate 24 is connected to the linkage rod 1 through the fourth rotating shaft 7, and the other side of the length of the third Z-shaped connecting plate 23 and the fourth Z-shaped connecting plate 24 is connected to the left lower adjustment plate 32 and the right lower adjustment plate 34 through the fifth rotating shaft and the sixth rotating shaft respectively.

[0038] The third Z-shaped connecting plate 23 and the fourth Z-shaped connecting plate 24 are connected to the linkage rod 1 through the fourth rotating shaft 7, and the length side of the first Z-shaped connecting plate 21 and the second Z-shaped connecting plate 22 are connected to the linkage rod 1 through the first rotating shaft 6, which can reduce the number of holes opened on the linkage rod 1 while ensuring the structural strength of the linkage rod 1.

[0039] The distance between the fourth rotating shaft 7 and the lowest end of the linkage rod 1 is smaller than the distance between the fourth rotating shaft 7 and the side of the lower left adjustment plate 32 and the lower right adjustment plate 34 away from the linkage rod 1, so that the lower left adjustment plate 32 and the lower right adjustment are both placed below the linkage rod 1 in the folded state, shortening the length of the linkage rod 1.

[0040] By pulling the linkage rod 1, the adjustment plates on both sides can be driven to move away from or closer to each other at the same time, thereby realizing the switching of the adjustment plates between the open state and the retracted state.

[0041] Working principle of this patent:

[0042] The sofa armrest has a movable vertical plate and a fixed vertical plate opposite to each other on the left and right. This structure is arranged between the movable vertical plate and the fixed vertical plate, and the upper left adjustment plate 31 and the lower left adjustment plate 32 are respectively connected to the movable vertical plate, and the upper right adjustment plate 33 and the lower right adjustment plate 34 are respectively connected to the fixed vertical plate.

[0043] Pulling the linkage rod 1 upward can drive the upper left adjustment plate 31 and the upper right adjustment plate 33, and the lower left adjustment plate 32 and the lower right adjustment plate 34 to move closer to each other synchronously, thereby realizing the retraction of the movable vertical plate and the fixed vertical plate; or pushing the linkage rod 1 downward can drive the upper left adjustment plate 31 and the upper right adjustment plate 33, and the lower left adjustment plate 32 and the lower right adjustment plate 34 to move away from each other synchronously, thereby realizing the opening of the movable vertical plate and the fixed vertical plate.

[0044] In this structure, the adjustment assembly 3 is arranged around the linkage rod 1 and is divided into an upper left adjustment plate 31, a lower left adjustment plate 32, an upper right adjustment plate 33, and a lower right adjustment plate 34. Therefore, if the adjustment assembly 3 on one side of the linkage rod 1 is damaged, it can be precisely replaced without having to replace both adjustment plates on that side, saving time and effort. Furthermore, the upper left adjustment plate 31, the lower left adjustment plate 32, the upper right adjustment plate 33, and the lower right adjustment plate 34 are all rotatably connected to the linkage rod 1 via a connecting assembly 2, which prevents the gears from getting stuck during meshing and the resulting need to replace the connecting assembly 2, thus facilitating maintenance.

[0045] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An adjustable sofa armrest telescopic mechanism, characterized by: Including linkage rod, connecting assembly and adjusting assembly, The linkage rod is arranged vertically; The adjustment assembly includes four adjustment plates distributed on both sides of the linkage rod, namely an upper left adjustment plate and a lower left adjustment plate on the left side of the linkage rod, and an upper right adjustment plate and a lower right adjustment plate on the right side of the linkage rod; The upper left adjustment plate, the lower left adjustment plate, the upper right adjustment plate and the lower right adjustment plate are all rotatably connected to the linkage rod via a connecting assembly, and the upper left adjustment plate, the lower left adjustment plate, the upper right adjustment plate and the lower right adjustment plate are all rotatably connected to the connecting assembly to which they are connected; By pulling the linkage rod, the adjustment plates on both sides can be driven to move away from or closer to each other at the same time, thereby switching the adjustment plates between the open state and the retracted state.

2. The adjustable sofa armrest telescopic mechanism according to claim 1, characterized in that: The upper left adjustment plate, lower left adjustment plate, upper right adjustment plate and lower right adjustment plate are all L-shaped structures, and the upper left adjustment plate and lower left adjustment plate are both arranged on the front side of the linkage rod, and the upper right adjustment plate and lower right adjustment plate are both arranged on the rear side of the linkage rod. The upper left adjustment plate extends horizontally backward away from the side of the linkage rod, and the upper right adjustment plate extends horizontally forward away from the side of the linkage rod.

3. The adjustable sofa armrest telescopic mechanism according to claim 2, characterized in that: The connecting components all have the same structure, which is a Z-shaped connecting plate. This structure has four Z-shaped connecting plates. The first Z-shaped connecting plate and the second Z-shaped connecting plate are respectively arranged on the front and rear sides of the linkage rod, and the length sides of the first Z-shaped connecting plate and the second Z-shaped connecting plate are connected to the linkage rod through a first rotating shaft, and the length sides of the first Z-shaped connecting plate and the second Z-shaped connecting plate are respectively connected to the left upper adjustment plate and the right upper adjustment plate through a second rotating shaft and a third rotating shaft; The third Z-shaped connecting plate and the fourth Z-shaped connecting plate are respectively arranged on the front and rear sides of the linkage rod, and one side of the length of the third Z-shaped connecting plate and the fourth Z-shaped connecting plate is connected to the linkage rod through the fourth rotating shaft, and the other side of the length of the third Z-shaped connecting plate and the fourth Z-shaped connecting plate is connected to the left lower adjustment plate and the right lower adjustment plate through the fifth rotating shaft and the sixth rotating shaft respectively.

4. The adjustable sofa armrest telescopic mechanism according to claim 1, characterized in that: A horizontal limiting block is provided on the linkage rod above each of the connecting components.

5. The adjustable sofa armrest telescopic mechanism according to claim 1, characterized in that: A groove is provided on the linkage rod below the upper left adjustment plate and the upper right adjustment plate.

6. The adjustable sofa armrest telescopic mechanism according to claim 3, characterized in that: The distance between the fourth rotating shaft and the lowest end of the linkage rod is smaller than the distance between the fourth rotating shaft and the sides of the left lower adjustment plate and the right lower adjustment plate away from the linkage rod.

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