Handrail structure convenient to assemble

Abstract

The handrail structure convenient to assemble comprises a handrail base and a handrail shell, fixing clamping pieces are arranged on the left side and the right side of the upper surface of the handrail base respectively, clamping grooves are formed in the fixing clamping pieces, and elastic clamping pieces matched with the clamping grooves in a clamped mode are arranged on the left side and the right side in the handrail shell respectively. An unlocking separation assembly is arranged on the armrest base between the left and right fixing clamping pieces; the handrail shell and the handrail base are assembled in a longitudinal insertion manner; the elastic clamping piece is clamped into the clamping groove when longitudinally moving along with the armrest shell; and the unlocking separation assembly is used for driving the elastic clamping piece to be separated from the clamping groove, and meanwhile, the unlocking separation assembly can drive the armrest shell to move upwards relative to the armrest base, so that the armrest base is separated from the armrest shell. The device is convenient to disassemble and separate, so that a user can disassemble the device by himself / herself in the later period without tool operation, and the operation and use requirements of the user are met.

Description

Technical Field

[0001] The invention relates to the technical field of office chair armrest installation, and in particular to an armrest structure that is easy to assemble. Background Art

[0002] The armrest of an existing office chair is composed of an armrest base and an armrest shell arranged on the upper surface of the armrest base. The armrest shell and the armrest base are assembled using multiple screws. This structure assembled using screws is prone to problems such as screw stripping and rust when it needs to be disassembled later. As a result, when the fabric on the surface of the armrest shell needs to be replaced later, the armrest shell is not convenient to disassemble, and further improvement is needed. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a handrail structure that is easy to assemble.

[0004] An easy-to-assemble armrest structure designed for this purpose comprises an armrest base and an armrest shell, wherein the upper surface of the armrest base is provided with fixed clamps on the left and right sides respectively, and the fixed clamps are provided with a clamping groove, and the armrest shell is provided with elastic clamps on the left and right sides respectively for clamping with the clamping groove, and an unlocking and disengaging component is provided on the armrest base between the left and right fixed clamps;

[0005] The armrest shell and the armrest base are assembled by longitudinal plugging; the elastic clamp is clamped into the clamping groove when following the longitudinal movement of the armrest shell;

[0006] The unlocking and disengaging assembly is used to drive the elastic clamping member to disengage from the clamping groove, and at the same time, the unlocking and disengaging assembly can drive the armrest shell to move upward relative to the armrest base, so that the armrest base is separated from the armrest shell.

[0007] Preferably, the unlocking and disengaging assembly comprises a movable seat respectively arranged on the left and right sides of the armrest base between the left and right fixed clamps, and the movable seat is arranged to move left and right relative to the armrest base;

[0008] The movable seat is provided with a trigger portion facing the clamping slot, and the armrest base is provided with an elastic element for applying a force to the movable seat, and the elastic element keeps the trigger portion away from the clamping slot;

[0009] A rotating wheel is rotatably arranged on the armrest base between the left and right moving seats, and a trigger block for pushing the moving seat to move toward the clamping groove is arranged on the peripheral wall of the rotating wheel;

[0010] The rotating wheel is provided with driving inclined blocks in a circumferential array, the armrest housing is provided with a driven inclined block extending downward, the lower surface of the driven inclined block is a driven inclined surface, and the upper surface of the driving inclined block is a driving inclined surface that fits the driven inclined surface.

[0011] Preferably, an arc-shaped matching piece is provided at one end of the movable seat facing the rotating wheel, and the triggering block is triggered by fitting with the arc-shaped matching piece.

[0012] Preferably, the armrest base is provided with a connecting hole penetrating from top to bottom, the rotating wheel is provided with a connecting bolt passing through the connecting hole, and a knob is connected to the lower end of the connecting bolt.

[0013] Preferably, the elastic clamp comprises a connecting seat connected to the armrest shell, the connecting seat is provided with an elastic sheet, the elastic sheet is provided with a clamping portion, and the clamping portion can be movably clamped in the clamping groove.

[0014] Preferably, the fixing fixture is provided with a first positioning column, the movable seat is provided with a second positioning column, one end of the elastic element is plug-fitted with the first positioning column, and the other end is plug-fitted with the second positioning column.

[0015] Compared with the prior art, the present invention is provided with an unlocking and disengaging assembly, under the action of which, the elastic clip can be driven to disengage from the clamping groove to achieve unlocking. While unlocking, the unlocking and disengaging assembly can drive the armrest shell to move upward, so that the armrest shell and the armrest base are quickly separated, so as to avoid the elastic clamp being clamped in the clamping groove again. The present invention is easy to disassemble and separate, so as to meet the user's self-disassembly at a later stage, without the need for tools, so as to meet the user's operation and use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the decomposition structure of the present invention;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the elastic clip;

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the present invention;

[0020] Figure 5 for Figure 4 The enlarged structural diagram at A in the middle;

[0021] Figure 6 for Figure 4 Enlarged structural diagram at B in the middle. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] See also Figure 1-Figure 6 , an armrest structure convenient for assembly, comprising an armrest base 10 and an armrest shell 20, wherein the upper surface of the armrest base 10 is respectively provided with fixed clamps 110 on the left and right sides, and the fixed clamps 110 are provided with a clamping groove 120, and the armrest shell 20 is respectively provided with elastic clamps 40 engaged with the clamping groove 120 on the left and right sides, and an unlocking and disengaging component 50 is provided on the armrest base 10 between the left and right fixed clamps 110;

[0024] The armrest housing 20 is longitudinally plugged and assembled with the armrest base 10; the elastic clamp 40 is clamped into the clamping groove 120 when following the longitudinal movement of the armrest housing 20;

[0025] The unlocking and disengaging component 50 is used to drive the elastic clamping member 40 to disengage from the clamping groove 120 , and at the same time, the unlocking and disengaging component 50 can drive the armrest shell 20 to move upward relative to the armrest base 10 , thereby separating the armrest base 10 from the armrest shell 20 .

[0026] The unlocking and disengaging assembly provided in the present invention can drive the elastic card to disengage from the card slot to achieve unlocking under the action of the unlocking and disengaging assembly. While unlocking, the unlocking and disengaging assembly can drive the armrest shell to move upward to quickly separate the armrest shell from the armrest base to prevent the elastic card from being stuck in the card slot again. The present invention is easy to disassemble and separate, so as to meet the needs of users to disassemble by themselves at a later stage without the need for tools, so as to meet the needs of users to operate and use.

[0027] See also Figure 1 The armrest base 10 is connected to a mounting bracket 30, and the mounting bracket 30 is connected to the seat of the office chair.

[0028] See also Figure 2 , Figure 5 and Figure 6The unlocking and disengaging assembly 50 includes a movable seat 510 disposed on the left and right sides of the armrest base 10 between the left and right fixed clamps 110, and the movable seat 510 is disposed to move left and right relative to the armrest base 10; the movable seat 510 is provided with a trigger portion 511 facing the clamping groove 120, and the armrest base 10 is provided with an elastic element 520 for applying a force to the movable seat 510, and the elastic element 520 keeps the trigger portion 511 away from the clamping groove 120; A rotating wheel 530 is rotatably arranged on the armrest base 10 between the two right movable seats 510, and a trigger block 531 is arranged on the peripheral wall of the rotating wheel 530 for pushing the movable seat 510 to move toward the clamping groove 120; a driving bevel 620 is arranged along a circumferential array on the rotating wheel 530, and the armrest shell 20 is provided with a driven bevel 610 extending downward, the lower surface of the driven bevel 610 is a driven bevel surface, and the upper surface of the driving bevel block 620 is a driving bevel surface that fits the driven bevel surface.

[0029] The operating principle of the unlocking and disengaging assembly 50 is that when the rotating wheel 530 is rotated, the movable seat 510 is pushed toward the clamping groove 120 by the triggering block 532. During this process, the triggering portion 511 gradually approaches the elastic clamping member 40, and the triggering portion 511 directly pushes the elastic clamping member 40 to disengage from the clamping groove 120. When the rotating wheel 530 rotates, the inclined block 620 is driven to rotate. Under the cooperation of the driving inclined surface and the driven inclined surface, the driven inclined block 610 is pushed to drive the armrest housing 20 to move upward, so that the armrest housing 20 moves upward and is separated from the armrest base 10.

[0030] Furthermore, the movable seat 510 is provided with a strip-shaped guide groove 513 , in which a guide bolt 550 is inserted, and the guide bolt 550 is threadedly connected to the armrest base 10 .

[0031] See also Figure 2 The end of the movable seat 510 facing the rotating wheel 530 is provided with an arc-shaped matching piece 512, and the triggering block 531 is triggered by being in close contact with the arc-shaped matching piece 512. The function of the arc-shaped matching piece 512 is to facilitate the rotating wheel 530 to better fit and transmit the triggering block 531 to the arc-shaped matching piece 512 during the rotation process.

[0032] See also Figure 5 The armrest base 10 is provided with a connecting hole 100 penetrating from top to bottom, and the rotating wheel 530 is provided with a connecting bolt 532 penetrating the connecting hole 100 , and the lower end of the connecting bolt 532 is connected to a knob 540 .

[0033] See also Figure 3The elastic clamp 40 includes a connecting seat 410 connected to the armrest shell 20 , the connecting seat 410 is provided with an elastic sheet 420 , the elastic sheet 420 is provided with a clamping portion 430 , and the clamping portion 430 can be movably clamped in the clamping groove 120 .

[0034] Furthermore, the connecting seat 410 is fixedly installed in the armrest housing 20 .

[0035] See also Figure 6 The fixing card 110 is provided with a first positioning column 111, the movable seat 510 is provided with a second positioning column 513, one end of the elastic element 520 is plugged into and matched with the first positioning column 111, and the other end is plugged into and matched with the second positioning column 513.

[0036] Furthermore, the connecting bolt 532 is sleeved with a torsion spring, one end of which is connected to the connecting bolt 532, and the other end of which is connected to the armrest base 10. The torsion spring can exert a force on the connecting bolt 532 to keep the rotating wheel 530 in a locked state, in which the trigger block 531 and the arc-shaped matching piece 512 are in a separated state.

[0037] In the description of the present invention, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating the orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

[0038] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An easy-to-assemble handrail structure, comprising a handrail base (10) and an handrail shell (20), characterized in that: The upper surface of the armrest base (10) is provided with fixed clamps (110) on the left and right sides respectively, and the fixed clamps (110) are provided with a clamping groove (120); elastic clamps (40) that are clamped and matched with the clamping groove (120) are provided on the left and right sides of the armrest housing (20); and an unlocking and disengaging component (50) is provided on the armrest base (10) between the left and right fixed clamps (110); The armrest shell (20) and the armrest base (10) are assembled by longitudinal plugging; the elastic clamp (40) is clamped into the clamping groove (120) when following the longitudinal movement of the armrest shell (20); The unlocking and disengaging component (50) is used to drive the elastic clamp (40) to disengage from the clamping groove (120), and at the same time, the unlocking and disengaging component (50) can drive the armrest shell (20) to move upward relative to the armrest base (10), thereby separating the armrest base (10) from the armrest shell (20).

2. The handrail structure that is easy to assemble according to claim 1, characterized in that: The unlocking and disengaging assembly (50) comprises movable seats (510) respectively arranged on the left and right sides of the armrest base (10) between the left and right two fixed clamps (110), and the movable seats (510) are arranged to move left and right relative to the armrest base (10); The movable seat (510) is provided with a trigger portion (511) facing the clamping slot (120), and the armrest base (10) is provided with an elastic element (520) for applying a force to the movable seat (510), wherein the elastic element (520) enables the trigger portion (511) to maintain a distance from the clamping slot (120); A rotating wheel (530) is rotatably arranged on the armrest base (10) between the left and right movable seats (510), and a trigger block (531) for pushing the movable seat (510) to move toward the clamping groove (120) is arranged on the peripheral wall of the rotating wheel (530); The rotating wheel (530) is provided with a driving inclined block (620) in a circular array, and the armrest housing (20) is provided with a driven inclined block (610) extending downward, the lower surface of the driven inclined block (610) is a driven inclined surface, and the upper surface of the driving inclined block (620) is a driving inclined surface that fits the driven inclined surface.

3. The handrail structure that is easy to assemble according to claim 2, characterized in that: An arc-shaped matching piece (512) is provided at one end of the movable seat (510) facing the rotating wheel (530), and the triggering block (531) is triggered by being in contact with the arc-shaped matching piece (512).

4. The handrail structure that is easy to assemble according to claim 2, characterized in that: The armrest base (10) is provided with a connecting hole (100) penetrating from top to bottom, and the rotating wheel (530) is provided with a connecting bolt (532) penetrating the connecting hole (100), and the lower end of the connecting bolt (532) is connected to a knob (540).

5. The handrail structure that is easy to assemble according to claim 1, characterized in that: The elastic clamp (40) comprises a connection seat (410) connected to the armrest shell (20), the connection seat (410) is provided with an elastic sheet (420), the elastic sheet (420) is provided with a clamping portion (430), and the clamping portion (430) can be movably clamped in the clamping groove (120).

6. The handrail structure that is easy to assemble according to claim 2, characterized in that: The fixing clamp (110) is provided with a first positioning column (111), the movable seat (510) is provided with a second positioning column (513), one end of the elastic element (520) is plugged into and matched with the first positioning column (111), and the other end is plugged into and matched with the second positioning column (513).

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