Armrest assembly structure for chair

Abstract

The utility model relates to a chair armrest assembly structure, mainly being equipped with a knob on the upper end cover plate of the armrest support to correspondingly assemble with the assembling hole arranged on the bottom surface of the armrest cushion, thereby, when assembling, the armrest cushion is rotated by an angle, so that the two protrusions arranged on the knob of the armrest support are respectively positioned in the two recesses arranged in the assembling hole on the armrest cushion, and the side of one protrusion on the knob is clamped with the tenon of the clamping tenon arranged on the armrest cushion, so that the assembly of the armrest support and the armrest cushion is completed, when the assembly of the armrest cushion and the armrest support is to be removed, only the inserted pin is inserted into the oblique hole wall formed by the oblique through hole of the clamping tenon through the insertion hole on the bottom surface of the armrest cushion, and the tenon of the clamping tenon is separated from the clamping of the protrusion on the knob along the guide of the oblique hole wall, and then the armrest cushion is reversely rotated by an angle, so that the knob of the armrest support is separated from the assembly of the assembling hole of the armrest cushion, and the effect that the armrest cushion and the armrest support are quickly assembled and disassembled is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of chair armrests, and in particular to a chair armrest assembly structure. BACKGROUND

[0002] In order to improve the comfort of sitting, most existing chairs are provided with armrests on both sides of the seat to support the hands of the user, thereby reducing the gravity of the drooping arms acting on the shoulders and avoiding shoulder and neck pain when sitting for a long time.

[0003] The existing chair armrest structure generally includes an armrest support for assembling with the seat and an armrest cushion connected with the armrest support to provide a place for the user to rest the elbow. Since the armrest support and the armrest cushion of the existing chair armrest are integrally formed, when one of the armrest support or the armrest cushion is damaged, the entire armrest must be replaced, which not only increases the maintenance cost, but also wastes material resources and does not meet the environmental protection benefits. In addition, the shape of the integrally formed armrest support and armrest cushion is limited, which cannot meet the needs of consumers who like novelty and beautiful shapes, thereby affecting the market competitiveness.

[0004] Therefore, the present inventor, in view of the above problems in the production and use of the existing chair armrest, has relied on his many years of manufacturing and design experience and knowledge in the relevant field and has developed the utility model through many clever ideas. SUMMARY

[0005] The utility model relates to a chair armrest assembly structure, which is mainly used to provide a chair armrest structure that can be assembled and disassembled with the armrest support and the armrest cushion, thereby saving maintenance costs and improving market competitiveness.

[0006] In order to achieve the above-mentioned implementation purposes, the utility model provides a chair armrest assembly structure, which includes:

[0007] An armrest support, the upper end of the armrest support is provided with a knob, and the opposite sides of the knob are respectively formed with a protrusion;

[0008] A handrail cushion, the bottom surface of the handrail cushion is provided with a set of stand holes, the opposite sides of the set of stand holes are respectively formed with a notch, the knob and the protrusions on both sides of the knob correspond to the shape of the set of stand holes and the notches on both sides of the set of stand holes, the knob and the protrusions on both sides of the knob are correspondingly arranged in the set of stand holes and the notches on both sides of the set of stand holes, the set of stand holes is respectively formed with a groove on the opposite sides of the hole wall adjacent to the upper edge of the set of stand holes, the two grooves are arranged in a staggered manner with the two notches, one side of the two grooves is respectively connected and communicated with one side of the two notches, the two protrusions on the knob are respectively and movably clamped and positioned or separated from the two grooves on the set of stand holes, the bottom surface of the handrail cushion is provided with a container groove, the container groove is provided with a clamping tenon and a elastic element, the two ends of the elastic element are respectively abutted with the clamping tenon and the container groove, one end of the container groove is provided with a through hole, the through hole is communicated with one of the grooves, the tenon head provided at one end of the clamping tenon is movably protruded into the groove through the through hole of the container groove, so as to be movably clamped and positioned or separated from one side of the protrusion on the knob, the other end of the clamping tenon opposite to the tenon head is formed with a connecting rod, the connecting rod is provided with an inclined through hole, the inclined through hole is formed with an inclined hole wall arranged at an angle, the bottom surface of the handrail cushion is provided with an insertion hole, the insertion hole corresponds to the position of the inclined through hole on the clamping tenon.

[0009] The chair handrail assembly structure as described above, wherein the handrail cushion is formed with a stop block at the groove bottom of the container groove, the clamping tenon is provided with a hollow hole, the stop block in the container groove is located in the hollow hole of the clamping tenon, and the elastic element is located in the hollow hole of the clamping tenon, and the two ends of the elastic element are respectively abutted with one side hole wall of the hollow hole in the clamping tenon and the stop block in the container groove.

[0010] The chair handrail assembly structure as described above, wherein the clamping tenon is formed with a guide part at the end of the tenon head.

[0011] The chair handrail assembly structure as described above, wherein the upper end cover of the handrail cushion is provided with a protective cover.

[0012] The chair handrail assembly structure as described above, wherein the upper end of the handrail support is fixedly provided with a cover plate, and the knob is arranged on the cover plate.

[0013] The chair handrail assembly structure as described above, wherein the chair handrail assembly structure further comprises a plug, the plug is inserted into the insertion hole provided on the bottom surface of the handrail cushion, and abuts against the inclined hole wall of the inclined through hole in the clamping tenon.

[0014] Thus, when assembling, the knobs of the armrest support are arranged in the assembling holes of the armrest cushion, and then the armrest cushion is rotated by an angle, so that the two protrusions arranged on the knobs of the armrest support are respectively clamped and positioned in the two recesses arranged on the assembling holes of the armrest cushion, and one side of one protrusion on the knob is clamped with the tenon of the clamping tenon arranged on the armrest cushion, so as to complete the assembly of the armrest support and the armrest cushion. In addition, when the armrest cushion and the armrest support are disassembled, only the shank is inserted into the inclined hole wall formed by the inclined through hole of the clamping tenon on the bottom surface of the armrest cushion, and the tenon of the clamping tenon is disengaged from the clamping of the protrusion of the knob, and then the armrest cushion is reversely rotated by an angle, so that the assembling hole is disengaged from the knob of the armrest support. Accordingly, the armrest cushion and the armrest support can be quickly assembled and disassembled. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a perspective view of the utility model;

[0016] Figure 2 is another perspective view of the utility model;

[0017] Figure 3 is a first assembly implementation state view of the utility model;

[0018] Figure 4 is a second assembly implementation state view of the utility model;

[0019] Figure 5 is a third assembly implementation state view of the utility model;

[0020] Figure 6 is a first disassembly implementation state view of the utility model;

[0021] Figure 7 is a second disassembly implementation state view of the utility model;

[0022] Figure 8 is a third disassembly implementation state view of the utility model;

[0023] Figure 9 is a fourth disassembly implementation state view of the utility model.

[0024] BRIEF DESCRIPTION OF DRAWINGS

[0025] 1, armrest support; 11, cover plate; 12, knob; 121, protrusion;

[0026] 2, armrest cushion; 21, assembly hole; 211, notch; 212, groove; 22, container groove; 221, stop block; 222, through hole; 23, clamping tenon; 231, hollow hole; 232, tenon; 233, guide part; 234, connecting rod; 235, inclined through hole; 24, elastic member; 25, insertion hole; 26, cover;

[0027] 3, insertion pin. DETAILED DESCRIPTION

[0028] In order to make the technical means of the utility model and the technical effects that can be achieved more complete and clear, please refer to the drawings and the reference numerals, and the detailed description is as follows:

[0029] First, please refer to Figure 1 and Figure 2 It is the chair armrest assembly structure of the utility model, mainly comprising:

[0030] A handrail support 1, a cover plate 11 is fixed on the upper end of the handrail support 1, and a knob 12 is arranged on the top surface center of the cover plate 11, and a protrusion 121 is formed on the opposite sides of the knob 12 respectively;

[0031] A handrail cushion 2, a set of stand holes 21 are arranged at the center of the bottom surface of the handrail cushion 2, and a notch 211 is formed at the opposite sides of the set of stand holes 21, and the knob 12 and the protrusions 121 on the two sides of the knob 12 correspond to the shape of the set of stand holes 21 and the notches 211 on the two sides of the set of stand holes 21, and the knob 12 and the protrusions 121 on the two sides of the knob 12 are arranged in the set of stand holes 21 and the notches 211 on the two sides of the set of stand holes 21, and the two recesses 212 are formed at the opposite sides of the hole wall adjacent to the upper edge of the set of stand holes 21, the two recesses 212 are arranged in a staggered manner with the two notches 211, and one side of the two recesses 212 is connected with one side of the two notches 211, and the two protrusions 121 on the knob 12 are respectively clamped and positioned or separated from the two recesses 212 in the set of stand holes 21, and a containing groove 22 is arranged at the bottom surface of the handrail cushion 2, and a stop block 221 is formed at the groove bottom of the containing groove 22, and a clamping block 23 is arranged in the containing groove 22, and a hollow hole 231 is arranged on the clamping block 23, and the stop block 221 in the containing groove 22 is located in the hollow hole 231 on the clamping block 23, and a resilient member 24 is arranged in the hollow hole 231 of the clamping block 23, and the two ends of the resilient member 24 are respectively in contact with the hole wall of the hollow hole 231 on the clamping block 23 and the stop block 221 in the containing groove 22, and a through hole 222 is arranged at one end of the containing groove 22, the through hole 222 is connected with one recess 212, and the protruding head 232 on one end of the clamping block 23 is protruded into the recess 212 through the through hole 222 of the containing groove 22, so as to be clamped and positioned or separated with one protrusion 121 on the knob 12, and a guide part 233 in the shape of an inclined surface, a taper or a circular arc is formed at the end of the protruding head 232 of the clamping block 23, and a connecting rod 234 is formed at the other end of the clamping block 23, and an oblique through hole 235 is arranged on the connecting rod 234, and the oblique through hole 235 is formed with an oblique hole wall at an inclined angle, and an insertion hole 25 is arranged at the bottom surface of the handrail cushion 2, and the insertion hole 25 corresponds to the position of the oblique through hole 235 on the clamping block 23, and a cover 26 is arranged at the upper end cover of the handrail cushion 2.

[0032] Accordingly, when assembled and used, please refer to Figure 3As shown, the armrest cushion 2 is placed on the upper end of the armrest support 1, and the knob 12 and the protrusions 121 on both sides of the knob 12 on the top surface of the armrest support 1 are inserted into the assembling hole 21 and the notches 211 on both sides of the assembling hole 21 on the bottom surface of the armrest cushion 2, and then the armrest cushion 2 is rotated clockwise by one angle, at this time, one of the protrusions 121 on the knob 12 on the armrest support 1 is guided along the inclined guiding part 233 on the end of the tenon 232 of the dowel 23, and the dowel 23 is pushed into the container groove 22, so as to compress the elastic member 24 in the hollow hole 231 of the dowel 23, and the tenon 232 of the dowel 23 is withdrawn from the recess 212. Please refer to Figure 4 As shown, the two protrusions 121 on the knob 12 are respectively rotated and moved to the two recesses 212 in the assembling hole 21 from the notches 211 on both sides of the assembling hole 21, so as to be positioned by abutting against the two recesses 212, and the tenon 232 of the dowel 23 is no longer pushed by the protrusions 121 on the knob 12, and the elastic member 24 which is compressed by the pushing of the dowel 23 into the container groove 22 can return to the original state, so as to push the tenon 232 of the dowel 23 into the recess 212 again, and abut against one side of one of the protrusions 121 on the knob 12, thereby the assembly of the armrest cushion 2 and the armrest support 1 is completed simply.

[0033] Furthermore, when the armrest of the chair is used for a period of time, the armrest cushion 2 is damaged, etc. Please refer to Figure 5 and Figure 6 As shown, the user can take out the plug 3, and then insert the plug 3 into the insertion hole 25 on the bottom surface of the armrest cushion 2, so as to abut against the inclined hole wall of the inclined through hole 235 in the dowel 23. Please refer to Figure 7 As shown, the continuous pushing force of the plug 3 will guide along the inclined hole wall of the dowel 23, and push the dowel 23 into the container groove 22, at this time, the elastic member 24 in the hollow hole 231 of the dowel 23 is compressed, and the tenon 232 of the dowel 23 is also withdrawn from the abutting position with one of the protrusions 121 on the knob 12. Please refer to Figure 8 As shown, then the user rotates the armrest cushion 2 counterclockwise by one angle, and the two protrusions 121 on the knob 12 on the armrest support 1 are respectively rotated and moved from the two recesses 212 in the assembling hole 21 on the armrest cushion 2 to the notches 211 on both sides of the assembling hole 21 (as shown in Figure 9 As shown, then the user can pull the armrest cushion 2 upwards, so as to separate the assembling hole 21 on the bottom surface of the armrest cushion 2 from the knob 12 on the armrest support 1, thereby the armrest cushion 2 and the armrest support 1 are separated simply.

[0034] Then the user can assemble a new undamaged armrest cushion 2 with the armrest support 1, the assembling hole 21 provided on the bottom surface of the armrest cushion 2 is assembled with the knob 12 on the armrest support 1, then the armrest cushion 2 is rotated by force to an angle, so that the protrusions 121 on both sides of the knob 12 on the armrest support 1 are positioned with the two recesses 212 in the assembling hole 21 on the armrest cushion 2, and the tenon 232 of the mortise 23 is positioned with one side of the protrusion 121 provided on the knob 12, so that the maintenance work of the armrest cushion 2 is simply completed.

[0035] According to the design, when the armrest cushion 2 is damaged, the damaged armrest cushion 2 can be conveniently disassembled from the armrest support 1, and a new armrest cushion 2 is quickly installed on the armrest support 1, without the need to disassemble and replace the armrest support 1. When the armrest support 1 is damaged, only the armrest support 1 needs to be disassembled and replaced, without the need to discard the armrest cushion 2. Therefore, the maintenance cost of the chair armrest is greatly saved, and the improper waste of material resources is avoided, which meets the environmental protection benefit. In addition, since the armrest cushion 2 and the armrest support 1 are manufactured separately, when one of the armrest cushion 2 or the armrest support 1 needs to be changed in shape, only one of the armrest cushion 2 or the armrest support 1 needs to be separately manufactured, which facilitates the saving of the manufacturing cost of the armrest. In addition, when the consumer wants to change the shape of the chair armrest, the consumer can choose to replace only one of the armrest cushion 2 or the armrest support 1, or the armrest cushion 2 and the armrest support 1 can be matched in different colors. Therefore, the flexible assembly design improves the diversity of the shape change of the armrest, attracts consumers to purchase, and improves the competitiveness of the chair armrest industry.

[0036] The foregoing embodiments or drawings are not limited to the embodiments of the utility model, and any appropriate changes or modifications made by those skilled in the art shall be considered as falling within the protection scope of the utility model.

[0037] From the above structure and embodiments, the utility model has the following advantages:

[0038] 1. The chair armrest assembly structure of the utility model separates the armrest support 1 and the armrest cushion 2, and quickly assembles and disassembles the armrest support 1 and the armrest cushion 2 in a clamping manner. When one of the armrest cushion 2 or the armrest support 1 is damaged, the damaged armrest cushion 2 or the armrest support 1 can be conveniently disassembled and replaced, without the need to discard the entire armrest. Therefore, the maintenance cost of the chair armrest is effectively saved, and the improper waste of material resources is avoided, which meets the environmental protection benefit.

[0039] 2. The chair armrest assembly structure of the utility model makes the armrest support 1 and the armrest cushion 2 manufactured separately, when one of the armrest cushion 2 or the armrest support 1 wants to change the shape, only the armrest cushion 2 or the armrest support 1 part can be manufactured separately, so as to save the armrest manufacturing cost, in addition, the armrest cushion 2 and the armrest support 1 can also be matched with different colors, so as to increase the changeability of the armrest shape, thereby, the substantial benefits such as improving the competitiveness of the chair armrest industry are achieved.

Claims

1. A chair armrest assembly structure, characterized in that, The chair armrest assembly structure comprises: a chair armrest support, the upper end of the chair armrest support is provided with a knob, the opposite sides of the knob are respectively formed with a protrusion; a chair armrest cushion, the bottom surface of the chair armrest cushion is provided with a set of vertical holes, the opposite sides of the set of vertical holes are respectively formed with a gap, the shape of the knob and the protrusions on the opposite sides of the knob corresponds to the shape of the set of vertical holes and the gaps on the opposite sides of the set of vertical holes, the knob and the protrusions on the opposite sides of the knob are correspondingly arranged in the gaps on the opposite sides of the set of vertical holes, the opposite sides of the hole walls of the set of vertical holes adjacent to the upper edges of the set of vertical holes are respectively formed with a groove, the two grooves and the two gaps are arranged in a staggered manner, one side of each of the two grooves is connected to one side of each of the two gaps, the two protrusions on the knob are respectively in active engagement with the two grooves in the set of vertical holes for positioning or separation, the bottom surface of the chair armrest cushion is provided with a container groove, the container groove is provided with a tenon and a resilient member, the two ends of the resilient member are respectively in abutment with the tenon and the container groove, one end of the container groove is provided with a through hole, the through hole is connected to one of the grooves, the tenon provided on one end of the tenon is in active protrusion through the through hole of the container groove to one side of the protrusion on the knob for positioning or separation, the opposite end of the tenon provided on the tenon is formed with a connecting rod, the connecting rod is provided with an inclined through hole, the inclined through hole is formed with an inclined hole wall at an inclined angle, the bottom surface of the chair armrest cushion is provided with a insertion hole, the position of the insertion hole corresponds to the position of the inclined through hole on the tenon.

2. The arm assembly of claim 1, wherein: The chair armrest cushion is formed with a stop block at the bottom of the container groove, the tenon is provided with a hollow hole, the stop block in the container groove is located in the hollow hole of the tenon, the resilient member is located in the hollow hole of the tenon, the two ends of the resilient member are respectively in abutment with one side of the hole wall of the hollow hole in the tenon and the stop block in the container groove.

3. The arm assembly of claim 1, wherein: The tenon is formed with a guide portion at the end of the tenon head.

4. The arm assembly of claim 1, wherein: The upper end cover of the chair armrest cushion is provided with a protective cover.

5. The arm assembly of claim 1, wherein: The upper end of the chair armrest support is fixedly provided with a cover plate, and the knob is arranged on the cover plate.

6. The arm assembly of claim 1, wherein: The chair armrest assembly structure further comprises a insertion pin, the insertion pin is inserted into the insertion hole provided on the bottom surface of the chair armrest cushion and is in abutment with the inclined hole wall of the inclined through hole in the tenon.

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