Multifunctional seat armrest

Abstract

The invention relates to the technical field of seat accessories, in particular to a multifunctional seat armrest which comprises a fixed arm and an armrest arm which are mounted on a seat body, a fixed seat and a swing seat are arranged on one side of the fixed arm, a control sleeve is fixed to the upper end of the swing seat, and a control rod and a locking rod are vertically arranged in the control sleeve. The lower end of the control rod penetrates through the swing seat to be fixedly connected with the locking rod, a plurality of locking grooves are eccentrically formed in the fixed seat, the opening ends of the locking grooves are connected through arc-shaped grooves, an unlocking groove is formed in the swing seat, the locking rod is horizontally arranged, and the two sides of the locking rod penetrate through the locking grooves in the fixed seat and finally extend to be inserted into the unlocking groove of the swing seat. After the height of the armrest arm is adjusted, the control rod descends to the bottommost part, the lifting structure extrudes the stress rod, the locking rod at the bottom of the stress rod moves downwards at the same time to be separated from the swing seat and the square groove in the circular seat, then the control rod and the shell are rotated, the swing seat moves in the limiting sliding groove outside the circular seat, and angle adjustment of the seat armrest is achieved. The multifunctional seat armrest is realized.

Description

Technical Field

[0001] The invention relates to the technical field of seat accessories, and in particular to a multifunctional seat armrest. Background Art

[0002] The design of seat armrests can vary depending on different types of seats, such as office chairs, sofas, car seats, etc. The seat armrests can be fixed or adjustable. Office chairs are often equipped with rotatable and liftable armrests to improve the practicality and comfort of the seats.

[0003] In the prior art, for example, a patent with publication number CN218551852U discloses a rotatable lift armrest, comprising a fixed bracket, used to connect a seat so that the rotatable lift armrest is fixed to the seat as a whole; an armrest bracket, as a main body, used to support an armrest panel; an intermediate connecting member, respectively connected to the fixed bracket and the armrest bracket, the armrest bracket is fixed to the intermediate connecting member, the intermediate connecting member can rotate relative to the fixed bracket, the rotation of the intermediate connecting member enables the armrest bracket to rotate and rise, the fixed bracket is provided with a movably arranged pin, and the intermediate connecting member is provided with a plurality of slots arranged along the rotation direction.

[0004] The above structure can realize the rotation and lifting of the armrest bracket, but when adjusting the armrest bracket, the armrest arm on the armrest bracket cannot be adjusted and rotated, and cannot support the arms in different positions, and has poor applicability. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a multifunctional chair armrest to solve the problem that the armrest on the armrest bracket cannot be adjusted and rotated, and cannot support the arm in different positions.

[0006] Based on the above purpose, the present invention provides a multifunctional chair armrest, comprising a fixed arm and an armrest arm mounted on a seat body, a fixed seat and a swing seat are provided on one side of the fixed arm, and the fixed seat and the swing seat are connected through a horizontally arranged rotating shaft; a control sleeve is fixed on the upper end of the swing seat, and a control rod is vertically provided in the control sleeve; A locking rod is provided, and the lower end of the control rod passes through the swing seat and is fixedly connected to the locking rod; a plurality of locking grooves are eccentrically provided on the fixed seat, and the open ends of the locking grooves are connected through arc grooves; an unlocking groove is provided on the swing seat, and the locking rod is horizontally arranged, distributed on both sides, passes through the locking grooves on the fixed seat, and finally extends to be inserted into the unlocking groove of the swing seat; The control rod is provided with a protrusion on the upper part of the swing seat, and an elastic element is sleeved on the control rod between the protrusion and the swing seat; the locking rod is driven downward by pressing the control rod so that the locking rod disengages from the locking groove and enters the arc groove, so that the swing seat can swing within the range controlled by the arc groove; a shell and a lifting structure are provided, and the shell is sleeved on the control sleeve and can move up and down in the length direction of the control sleeve and be locked with it through the lifting structure; when the lifting structure descends to the lowermost position of the control sleeve, the lifting structure can be controlled to realize the downward operation of the control rod.

[0007] Preferably, a movable structure is provided at the upper end of the shell, and the movable mechanism is connected to the armrest, and the movable structure is used to control the angle deviation and forward and backward movement of the armrest; the movable structure includes an arm seat installed at the top of the shell, a plum blossom shaft is fixedly installed at the center of the arm seat, the armrest is sleeved on the outside of the plum blossom shaft, a special-shaped sleeve is sleeved on the top of the plum blossom shaft, a fixed plate is sleeved on the outside of the special-shaped sleeve, a special-shaped groove corresponding to the special-shaped sleeve is provided in the fixed plate, and a stop block engaged with the special-shaped sleeve is installed in the special-shaped groove; a wave groove is provided inside the armrest, the fixed plate is slidably installed inside the wave groove, and blocks are slidably installed on both sides of the fixed plate, and one side of the block and the stop block are connected to a first spring.

[0008] Preferably, one end of the clamping block and the stop block are both arranged in an arc shape, and a sliding groove corresponding to the plum blossom shaft is provided at the bottom of the armrest.

[0009] Preferably, the lifting structure includes a rotating shaft rotatably installed in the shell, a touch rod is fixedly installed at the bottom of the rotating shaft, the touch rod is an L-shaped structure, a plurality of openings are opened in the length direction of the inner wall of the control sleeve, the end of the touch rod is inserted into the opening, and a paddle is installed on one side of the touch rod, the paddle passes through the outside of the shell, and a second spring is connected between the top of the paddle and the arm seat; when the touch rod drops to the lowest end, the paddle is used to rotate the touch rod and contact the upper end face of the control rod, and then by pressing down the armrest, the lower end of the touch rod can press down the control rod so that the locking rod disengages from the locking groove.

[0010] Preferably, it is characterized in that there is at least one locking groove, and the cross-section of the locking groove is a rectangular groove, and the cross-section of the locking rod is a rectangular structure matching therewith.

[0011] Preferably, it is characterized in that the outer part of the pendulum seat and the control rod is sleeved with a casing, the casing is formed by mirror-image splicing of the shell, and the control rod and the touch rod are corresponding structures up and down.

[0012] The beneficial effects of the present invention are as follows: the whole is installed on both sides of the seat body through the fixed arm. When the height of the armrest needs to be adjusted, the height of the armrest is adjusted through the lifting structure. When the angle of the seat armrest needs to be adjusted after the height adjustment, the control rod is lowered to the bottom, and the lifting structure squeezes the force-bearing rod downward. At the same time, the locking rod at the bottom of the force-bearing rod moves downward to separate the swing seat from the square groove inside the circular seat. Then the control rod and the outer shell are rotated to make the swing seat move along the limiting slide groove outside the circular seat, thereby achieving the purpose of rotating the seat armrest, which is suitable for the seat in the reclining state and fits the human arm, realizing a multi-functional seat armrest. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the half-section structure of the present invention as a whole; Figure 3 It is a schematic diagram of the internal structure of the fixed seat and the swing seat of the present invention; Figure 4 Schematic diagram of the internal structure of the mobile structure of the present invention Figure 5 It is a schematic diagram of the explosion structure of the touch rod and the arm seat of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the connection between the swing seat and the fixed seat of the present invention.

[0015] The markings in the figure are: 1. fixed arm; 2. control sleeve; 3. shell; 4. armrest; 5. moving structure; 51. arm seat; 52. plum blossom shaft; 53. special-shaped sleeve; 54. fixed plate; 55. wave groove; 56. block; 57. first spring; 58. stop block; 59. special-shaped groove; 6. lifting structure; 61. rotating shaft; 62. touch rod; 63. paddle; 64. second spring; 65. opening; 71. swing seat; 72. control rod; 73. elastic element; 74. locking rod; 75. fixed seat; 76. arc groove; 77. locking groove; 78. sleeve; 8. unlocking groove. DETAILED DESCRIPTION

[0016] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0017] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The multifunctional chair armrest comprises a fixed arm 1 and an armrest 4 mounted on the seat body, a fixed seat 75 is provided on one side of the fixed arm 1, and a swing seat 71 is provided, and the fixed seat 75 is connected to the swing seat 71 through a horizontally arranged rotating shaft; a control sleeve 2 is fixed to the upper end of the swing seat 71, and a control rod 72 is vertically provided in the control sleeve 2; a locking rod 74 is provided, and the lower end of the control rod 72 passes through the swing seat 71 and is fixedly connected to the locking rod 74; a plurality of locking grooves 77 are eccentrically provided on the fixed seat 75, and the open ends of the locking grooves 77 are connected through arc grooves 76; an unlocking groove 8 is provided on the swing seat 71, and the locking rod 74 is horizontally arranged, distributed on both sides, passes through the locking grooves 77 on the fixed seat 75, and finally extends Inserted into the unlocking groove 8 of the swing seat 71; the control rod 72 is provided with a protrusion on the upper part of the swing seat 71, and an elastic element 73 is sleeved on the control rod 72 between the protrusion and the swing seat 71; the locking rod 74 is driven downward by pressing the control rod 72 so that the locking rod 74 disengages from the locking groove 77 and enters the arc groove 76, so that the swing seat 71 can swing within the control range of the arc groove 76; a shell 3 and a lifting structure 6 are provided, the shell 3 is sleeved on the control sleeve 2 and can move up and down in the length direction of the control sleeve 2 through the lifting structure 6 and be locked with it; when the lifting structure 6 descends to the lowermost position of the control sleeve 2, the lifting structure 6 is controlled to realize the pressing operation of the control rod 72.

[0018] In this embodiment, when the height of the armrest 4 needs to be adjusted, the height of the armrest 4 is adjusted through the lifting structure 6. When the angle of the seat armrest needs to be adjusted after the height adjustment, the control sleeve 2 is lowered to the bottom, and the lifting structure 6 squeezes the control rod 72 downward. The locking rod 74 at the bottom of the control rod 72 moves downward at the same time, and then the control sleeve 2 and the shell 3 are rotated to drive the locking rod 74 to move downward so that the locking rod 74 disengages from the locking groove 77 and enters the arc groove 76, so that the swing seat 71 is outside the fixed seat 75 and swings within the range controlled by the arc groove 76, thereby achieving the purpose of rotating the seat armrest, which is suitable for the seat in the reclining state and fits the human arm, thereby realizing a multi-functional seat armrest.

[0019] As an implementation method, Figure 1 , Figure 2 and Figure 5As described, a moving structure 5 is provided at the upper end of the shell 3, and the moving mechanism 5 is connected to the armrest 4. The moving structure 5 is used to control the angle deviation and forward and backward movement of the armrest 4; the moving structure 5 includes an arm seat 51 installed at the top of the shell 3, and a plum blossom shaft 52 is fixedly installed at the center of the arm seat 51. The armrest 4 is sleeved on the outside of the plum blossom shaft 52, and a special-shaped sleeve 53 is sleeved on the top of the plum blossom shaft 52. A fixing plate 54 is sleeved on the outside of the special-shaped sleeve 53, and a special-shaped groove 59 corresponding to the special-shaped sleeve 53 is provided in the fixing plate 54, and a stop block 58 engaged with the special-shaped sleeve 53 is installed in the special-shaped groove 59; a wave groove 55 is provided inside the armrest 4, and the fixing plate 54 is slidably installed inside the wave groove 55, and blocks 56 are slidably installed on both sides of the fixing plate 54, and one side of the block 56 and the stop block 58 are connected to a first spring 57.

[0020] In this embodiment, when the position of the armrest 4 needs to be adjusted, the armrest 4 is pulled to slide on the arm seat 51, and the wave groove 55 in the armrest 4 moves outside the fixed plate 54. Through the combination of the clamping block 56 and the first spring 57, the clamping block 56 is clamped in the wave groove 55 to determine the front and rear position of the armrest 4 on the arm seat 51; then the offset angle of the armrest 4 is adjusted, and the armrest 4 is rotated. At this time, the special-shaped groove 59 opened on the internal fixed plate 54 is combined with the special-shaped sleeve 53 to limit the rotation angle of the armrest 4. When the outside of the special-shaped groove 59 rotates, the internal stop block 58 is combined with the first spring 57 to re-limit the special-shaped sleeve 53 after the armrest 4 has deviated from the angle to determine the offset angle of the armrest 4.

[0021] One end of the clamping block 56 and the stop block 58 are both configured to be arc-shaped, and a sliding groove corresponding to the plum blossom shaft 52 is provided at the bottom of the armrest 4 .

[0022] In this embodiment, the arc-shaped clamping block 56 is clamped in the wave groove 55 to limit the movement of the armrest 4, and the sliding groove at the bottom of the armrest 4 facilitates the movement of the armrest 4 on the arm seat 51 to adjust the front and rear position of the armrest 4.

[0023] As an implementation method, Figure 1 , Figure 2 and Figure 5 The lifting structure 6 includes a rotating shaft 61 rotatably installed in the shell 3, and a touch rod 62 is fixedly installed at the bottom of the rotating shaft 61. The touch rod 62 is an L-shaped structure. A plurality of openings 65 are opened in the length direction of the inner wall of the control sleeve 2. The end of the touch rod 62 is inserted into the opening 65, and a paddle 63 is installed on one side of the touch rod 62. The paddle 63 passes through the outside of the shell 3, and a second spring 64 is connected between the top of the paddle 63 and the arm seat 51; when the touch rod 62 drops to the lowest end, the paddle 63 is used to rotate the touch rod 62 and contact the upper end surface of the control rod 72, and then by pressing down the armrest 4, the lower end of the touch rod 62 can press down the control rod 72 so that the locking rod 74 is disengaged from the locking groove 77.

[0024] In this embodiment, when the height of the armrest 4 needs to be raised or lowered, the paddle 63 is manually pushed up, and the paddle 63 and the touch rod 62 rotate around the rotating shaft 61, and the bottom of the touch rod 62 is separated from the opening 65 on the inner wall of the control sleeve 2, and the housing 3 is pulled up or down outside the control sleeve 2. After the height of the armrest is determined, the paddle 63 is released, and based on the elastic force of the second spring 64, the touch rod 62 is reinserted into the opening 65.

[0025] As an implementation method, Figure 3 As described above, there are at least three locking grooves 77 , and the cross section of the locking groove 77 is a rectangular groove, and the cross section of the locking rod 74 is a rectangular structure matching therewith.

[0026] In this embodiment, by combining multiple sets of locking grooves 77 and arc grooves 76, the sleeve 2 and the swing seat 71 are controlled to rotate a certain angle and then re-engaged into the locking groove 77 for limiting, so as to prevent the armrest from shaking after rotation.

[0027] As an implementation method, Figure 2 , Figure 3 and Figure 6 As described above, the outer parts of the swing seat 71 and the control sleeve 2 are sleeved with a sleeve shell 78, which is formed by mirror-image splicing of the shell, and the control rod 72 and the touch rod 62 are corresponding structures up and down.

[0028] In this embodiment, the housing 78 formed by mirror-image splicing of the housing is used to protect the outside of the swing seat 71, and at the same time, the control rod 72 in the control sleeve 2 is in contact with the touch rod 62, and can rotate when the outer shell 3 and the control sleeve 2 are in the contracted state.

[0029] Working principle: When in use, the whole is installed on both sides of the seat body through the fixed arm 1. When the height of the armrest arm 4 needs to be raised or lowered, the paddle 63 is manually pulled up, and the paddle 63 and the touch rod 62 rotate with the rotating shaft 61 as the center of the circle. The bottom of the touch rod 62 is separated from the opening 65 on the inner wall of the control sleeve 2, and the housing 3 is pulled up or down outside the control sleeve 2. After the height of the armrest is determined, the paddle 63 is released, and based on the elastic force of the second spring 64, the touch rod 62 is reinserted into the opening 65; After the height of the armrest position is determined, when the position of the armrest arm 4 needs to be adjusted, first determine the front and rear position of the armrest arm 4 on the arm seat 51, and pull the armrest arm 4 to slide on the arm seat 51, so that the wave groove 55 in the armrest arm 4 moves outside the fixed plate 54, and the block 56 is engaged with the first spring 57, and the block 56 is engaged in the wave groove 55, and then the offset angle of the armrest arm 4 is adjusted, and the armrest arm 4 is rotated. At this time, the special-shaped groove 59 opened on the internal fixed plate 54 is combined with the special-shaped sleeve 53 to limit the rotation angle of the armrest arm 4. When the special-shaped groove 59 rotates outside, the internal stop block 58 is combined with the first spring 57 to re-limit the special-shaped sleeve 53 after the armrest arm 4 deviates from the angle, and the offset angle of the armrest arm 4 is determined; When the seat body is reclining and the angle of the seat armrest needs to be adjusted, the paddle 63 is manually pushed up, the shell 3 drops to the bottom outside the control sleeve 2, the paddle 63 is released, and the internal touch rod 62 squeezes the control rod 72 downward. When the lower end of the touch rod 62 is locked with the lowermost opening 65, the paddle 63 is pushed to make the touch rod 62 rotate around the rotating shaft 61. At the same time, the lower end of the touch rod 62 presses the control rod 72 downward to make the locking rod 74 disengage from the locking groove 77. The locking rod 74 at the bottom of the control rod 72 moves downward at the same time, and then the control sleeve 2 and the shell 3 are rotated to drive the locking rod 74 to move downward so that the locking rod 74 disengages from the locking groove 77 and enters the arc groove 76, so that the swing seat 71 swings outside the fixed seat 75 within the control range of the arc groove 76, thereby achieving the purpose of rotating the seat armrest, which is suitable for the seat in the reclining state and realizes a multi-functional seat armrest.

[0030] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0031] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multifunctional chair armrest, comprising a fixed arm (1) and an armrest arm (4) mounted on a chair body, wherein a fixed seat (75) is provided on one side of the fixed arm (1), and characterized in that: A swing seat (71) is provided, and the fixed seat (75) is connected to the swing seat (71) via a horizontally arranged rotating shaft; a control sleeve (2) is fixed to the upper end of the swing seat (71), and a control rod (72) is vertically arranged in the control sleeve (2); a locking rod (74) is provided, and the lower end of the control rod (72) passes through the swing seat (71) and is fixedly connected to the locking rod (74); a plurality of locking grooves (77) are eccentrically provided on the fixed seat (75), and the open ends of the locking grooves (77) are connected via arc grooves (76); an unlocking groove (8) is provided on the swing seat (71), and the locking rod (74) is horizontally arranged, distributed on both sides, passes through the locking grooves (77) on the fixed seat (75), and finally extends to be inserted into the unlocking groove (8) of the swing seat (71); the control rod (7 2) A protrusion is provided at the upper part of the swing seat (71), and an elastic element (73) is sleeved on the control rod (72) between the protrusion and the swing seat (71); by pressing down the control rod (72), the locking rod (74) is driven to move downward so that the locking rod (74) is separated from the locking groove (77) and enters the arc groove (76), so that the swing seat (71) can swing within the range controlled by the arc groove (76); a shell (3) and a lifting structure (6) are provided, the shell (3) is sleeved on the control sleeve (2) and can move up and down in the length direction of the control sleeve (2) through the lifting structure (6) and be locked with it; when the lifting structure (6) descends to the lowest position of the control sleeve (2), the lifting structure (6) can realize the pressing operation of the control rod (72).

2. A multifunctional chair armrest according to claim 1, characterized in that: A moving structure (5) is provided at the upper end of the housing (3), the moving structure (5) is connected to the armrest (4), and the moving structure (5) is used to control the angle deviation and forward and backward movement of the armrest (4); The movable structure (5) comprises an arm seat (51) mounted on the top of the housing (3); a plum blossom shaft (52) is fixedly mounted at the center of the arm seat (51); the armrest (4) is sleeved on the outside of the plum blossom shaft (52); a special-shaped sleeve (53) is sleeved on the top of the plum blossom shaft (52); a fixing plate (54) is sleeved on the outside of the special-shaped sleeve (53); a special-shaped groove (59) corresponding to the special-shaped sleeve (53) is formed in the fixing plate (54); a stop block (58) is mounted in the special-shaped groove (59) and is engaged with the special-shaped sleeve (53); A wave groove (55) is provided inside the armrest (4), the fixing plate (54) is slidably mounted inside the wave groove (55), and clamping blocks (56) are slidably mounted on both sides of the fixing plate (54), and one side of each of the clamping block (56) and the stop block (58) is connected to a first spring (57).

3. A multifunctional chair armrest according to claim 2, characterized in that: One end of the clamping block (56) and the stop block (58) are both arranged in an arc shape, and a sliding groove corresponding to the plum blossom shaft (52) is provided at the bottom of the armrest (4).

4. The multifunctional chair armrest according to claim 1, characterized in that: The lifting structure (6) comprises a rotating shaft (61) rotatably mounted in the housing (3), a touch rod (62) being fixedly mounted at the bottom of the rotating shaft (61), the touch rod (62) being an L-shaped structure, a plurality of openings (65) being provided in the length direction of the inner wall of the control sleeve (2), the end of the touch rod (62) being inserted into the opening (65), and a paddle (63) being mounted on one side of the touch rod (62), the paddle (63) penetrating the outside of the housing (3), and a second spring (64) being connected between the top of the paddle (63) and the arm seat (51); When the touch rod (62) descends to the lowest end, the touch rod (62) is rotated by the paddle (63) and contacts the upper end surface of the control rod (72). Then, by pressing down the armrest (4), the lower end of the touch rod (62) presses down the control rod (72) so that the locking rod (74) is disengaged from the locking groove (77).

5. The multifunctional chair armrest according to claim 1, characterized in that: There are at least three locking grooves (77), and the cross-section of the locking groove (77) is a rectangular groove, and the cross-section of the locking rod (74) is a rectangular structure matching therewith.

6. The multifunctional chair armrest according to claim 4, characterized in that: The outer parts of the swing seat (71) and the control rod (2) are sleeved with a sleeve shell (78), the sleeve shell (78) being formed by mirror-image splicing of shells, and the control rod (72) and the touch rod (62) are structures corresponding to each other in the upper and lower parts.

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