Armrest angle adjusting structure

Abstract

The utility model discloses a handrail angle adjusting structure which comprises a first installation seat, a second installation seat is fixedly connected in the first installation seat, a second containing groove is formed in the second installation seat, a sliding block is connected in the second containing groove in a sliding mode, a wedge block is fixedly connected to the upper surface of the sliding block, and a third containing groove is formed in the lower surface of the sliding block. A spring is sleeved with the third containing groove, one end of the spring is arranged in the third containing groove, the other end of the spring is arranged in the second containing groove, and adjusting blocks are hinged to the outer walls of the two sides of the second mounting base. The wedge block is combined with the clamping groove to achieve angle locking of the connecting piece, the connecting piece pushes the adjusting block to deflect through the tail end of the limiting groove, the check block on the adjusting block limits the sliding block, and therefore unlocking of the wedge block and the clamping groove is automatically achieved. Therefore, the angle adjusting operation can be simplified, the manufacturing and assembling cost is effectively reduced, and the attractiveness is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of armrests, in particular to an armrest angle adjustment structure. Background Art

[0002] The armrest is an important component of the chair and is mainly used to support the arms. In order to improve the practicality and comfort of the armrest, the existing armrests are generally designed with an angle adjustment structure to provide a more comfortable support effect. The existing angle adjustment structure generally uses screws to lock the armrest angle, or uses an elastic wedge block in combination with a slot to lock the armrest angle. However, screw locking requires turning the screw to unlock and lock, and it is easy to loosen, while the wedge block needs to be manually unlocked by turning a button with the slot. Therefore, the above two methods have the disadvantage of complicated operation, and designing a reset button on the wedge block will make the angle adjustment structure complicated, resulting in increased manufacturing and assembly costs, and will also reduce the aesthetics of the armrest. Utility Model Content

[0003] The purpose of the utility model is to provide an armrest angle adjustment structure to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: an armrest angle adjustment structure, comprising a first mounting seat, a second mounting seat is fixedly connected in the first mounting seat, a second accommodating groove is provided on the second mounting seat, a slider is slidably connected in the second accommodating groove, a wedge is fixedly connected to the upper surface of the slider, a third accommodating groove is provided on the lower surface of the slider, a spring is sleeved in the third accommodating groove, and one end of the spring is arranged in the third accommodating groove, and the other end is arranged in the second accommodating groove, adjustment blocks are hinged on the outer walls of both sides of the second mounting seat, a stopper is fixedly connected to the adjustment block, and the stopper is arranged on the top of the slider, a connecting piece is hinged on the first mounting seat, a plurality of slots are provided on the inner wall of the connecting piece, and the wedge is clamped in the slot, a limiting slot is provided on the inner wall of the connecting piece at the position corresponding to the adjustment block, and the adjustment block is arranged in the limiting slot.

[0005] Preferably, mounting grooves are provided on both side outer walls of the second mounting seat, and two adjustment blocks are respectively arranged in the two mounting grooves, and through holes are provided on the two adjustment blocks, and fixed shafts are sleeved in the through holes, and the fixed shafts are fixedly connected in the mounting grooves.

[0006] Preferably, protrusions are fixedly connected to the lower surfaces of the two stoppers, a groove is provided on the upper surface of the sliding block at a position corresponding to the protrusion, and a step groove is provided on one side of the groove.

[0007] Preferably, the armrest body is fixedly connected to the connecting member, and the lower surface of the first mounting seat is fixedly connected to a support rod.

[0008] Preferably, a first receiving groove is formed on the first mounting seat, and the second mounting seat is fixedly connected in the first receiving groove, a first screw is installed in the first receiving groove, and the first screw is threadedly connected to the support rod.

[0009] Preferably, second mounting holes are opened on the outer walls on both sides of the connecting member, second screws are installed in the second mounting holes, first mounting holes are opened on the outer walls on both sides of the first mounting seat at positions corresponding to the second mounting holes, and the second screws are threadedly connected in the first mounting holes.

[0010] The utility model provides an armrest angle adjustment structure, which has the advantages that: the utility model realizes angle locking of the connecting piece by combining a wedge block with a card slot, and the connecting piece uses the end of the limit slot to push the adjustment block to deflect, so that the stop block on the adjustment block limits the slider, thereby automatically unlocking the wedge block and the card slot. Since the existing reset button design is abandoned, the utility model can simplify the operation of angle adjustment, effectively reduce manufacturing and assembly costs, and improve aesthetics. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in 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 described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the front cutaway structure of the connector of the utility model;

[0014] Figure 3 This is a schematic diagram of the three-dimensional structure of the first mounting base of the utility model;

[0015] Figure 4 It is a schematic diagram of the three-dimensional structure of the second mounting base of the utility model;

[0016] Figure 5 This is a schematic diagram of the three-dimensional structure of the slider of the utility model;

[0017] Figure 6 This is a schematic diagram of the three-dimensional structure of the adjustment block of the utility model;

[0018] Figure 7 It is a schematic diagram of the three-dimensional structure of the connecting piece of the utility model.

[0019] In the figure: 1. first mounting seat; 11. first mounting hole; 12. first screw; 13. first accommodating groove; 2. second mounting seat; 21. second accommodating groove; 22. mounting groove; 23. fixed shaft; 3. slider; 31. third accommodating groove; 32. spring; 33. wedge block; 34. groove; 35. step groove; 4. adjustment block; 41. through hole; 42. stop block; 43. protrusion; 5. connecting piece; 51. second mounting hole; 52. slot; 53. limit slot; 54. second screw; 6. armrest body; 7. support rod. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Please refer to the attached Figure 1 -Attached Figure 7The utility model provides an embodiment: an armrest angle adjustment structure, including a first mounting seat 1, a second mounting seat 2 is fixedly connected in the first mounting seat 1, a second accommodating groove 21 is provided on the second mounting seat 2, a slider 3 is slidably connected in the second accommodating groove 21, a wedge block 33 is fixedly connected to the upper surface of the slider 3, a third accommodating groove 31 is provided on the lower surface of the slider 3, a spring 32 is sleeved in the third accommodating groove 31, and one end of the spring 32 is arranged in the third accommodating groove 31, and the other end is arranged in the second accommodating groove 21, and the outer walls of both sides of the second mounting seat 2 are hinged with adjustment blocks 4, and the adjustment block 4 is fixedly connected with a stopper 42, and the stopper 42 is arranged on the slider 3 The top of the first mounting seat 1 is hinged with a connecting piece 5, and a plurality of slots 52 are provided on the inner wall of the connecting piece 5, and the wedge block 33 is snapped into the slot 52. A limiting slot 53 is provided at the position of the inner wall of the connecting piece 5 corresponding to the adjusting block 4, and the adjusting block 4 is arranged in the limiting slot 53. The first mounting seat 1 is used to install the second mounting seat 2, the second accommodating groove 21 is used to accommodate the slider 3, the wedge block 33 is used to cooperate with the slot 52 to achieve the angle locking of the corresponding connecting piece 5, the third accommodating groove 31 is used to accommodate the spring 32, the spring 32 is used to provide the slider 3 with a reset elastic force, the limiting slot 53 is used to accommodate the adjusting block 4, the adjusting block 4 limits the slider 3 through the stopper 42, and the limiting slot The two ends of 53 can push the adjustment block 4 to deflect; the outer walls of both sides of the second mounting seat 2 are provided with mounting grooves 22, and the two adjustment blocks 4 are respectively arranged in the two mounting grooves 22, and the two adjustment blocks 4 are provided with through holes 41, and the fixed shaft 23 is sleeved in the through holes 41, and the fixed shaft 23 is fixedly connected in the mounting groove 22, the mounting groove 22 is used to accommodate the adjustment block 4, the through hole 41 is used to accommodate the fixed shaft 23, and the fixed shaft 23 is used to realize the hinge between the adjustment block 4 and the slider 3; the lower surfaces of the two stoppers 42 are fixedly connected with protrusions 43, and the upper surface of the slider 3 is provided with grooves 34 at the position corresponding to the protrusions 43, and one side of the groove 34 is provided with a step groove 35, and the protrusions 43 is used to cooperate with the groove 34 to prevent the stopper 42 from separating from the slider 3, and the step groove 35 is used to accommodate the stopper 42 after the deflection is reset; the armrest body 6 is fixedly connected to the connecting member 5, and the support rod 7 is fixedly connected to the lower surface of the first mounting seat 1, and the support rod 7 is used to support the first mounting seat 1, and the armrest body 6 is used to support the arm; the first mounting seat 1 is provided with a first receiving groove 13, and the second mounting seat 2 is fixedly connected to the first receiving groove 13, and the first screw 12 is installed in the first receiving groove 13, and the first screw 12 is threadedly connected to the support rod 7, the first receiving groove 13 is used to accommodate the second mounting seat 2, and the first screw 12 is used to fix the first mounting seat 1 on the support rod 7;Second mounting holes 51 are provided on both sides of the outer wall of the connecting member 5, and second screws 54 are installed in the second mounting holes 51. First mounting holes 11 are provided on both sides of the outer wall of the first mounting seat 1 at positions corresponding to the second mounting holes 51, and the second screws 54 are threadedly connected in the first mounting holes 11. The first mounting holes 11 and the second mounting holes 51 are used to install the second screws 54, and the second screws 54 are used to realize the hinge connection between the connecting member 5 and the first mounting seat 1. ;

[0022] Working principle: When the utility model is used to adjust the angle of the armrest body 6, the armrest body 6 is rotated forwardly to make the connecting piece 5 rotate on the first mounting seat 1. During this process, the spring 32 in the third accommodating groove 31 provides a reset elastic force for the slider 3, so that the wedge block 33 is automatically engaged with the card slot 52, thereby preventing the connecting piece 5 from rotating in the opposite direction, thereby realizing the angle locking of the armrest body 6. When it is necessary to reset the armrest body 6 and readjust the angle, the armrest body 6 can be rotated forwardly to the limit position, the wedge block 33 is disengaged from the card slot 52, and the slider 3 is squeezed to the lowest position. At this time, the adjustment block 4 is driven by the end of the limit groove 53, and the adjustment block 4 is deflected in the mounting groove 22, so that the protrusion 43 is in the groove 34, and the block 42 locks and limits the slider 3. At this time, the armrest body 6 can be rotated in the opposite direction to the limit position, and the adjustment block 4 is driven by the other end of the limit groove 53. The adjusting block 4 is driven to deflect in the mounting groove 22, so that the protrusion 43 is disengaged from the groove 34. Under the reset action of the spring 32, the slider 3 moves up. At this time, the stopper 42 is in the step groove 35, and the slider 3 is lost. Then, the angle can be readjusted by rotating the armrest body 6 forward, and the wedge block 33 is engaged with the card slot 52 to prevent the connecting member 5 from rotating in the opposite direction. Among them, the first mounting hole 11 and the second mounting hole 51 are used to install the second screw 54, and the second screw 54 is used to realize the hinge between the connecting member 5 and the first mounting seat 1. The first screw 12 is used to fix the first mounting seat 1 on the support rod 7. The first accommodating groove 13 is used to accommodate the second mounting seat 2. The second accommodating groove 21 on the second mounting seat 2 is used to accommodate the slider 3. The through hole 41 is used to accommodate the fixed shaft 23, and the fixed shaft 23 is used to realize the hinge between the adjusting block 4 and the slider 3.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. An armrest angle adjustment structure, comprising a first mounting seat (1), characterized in that: The first mounting seat (1) is fixedly connected to a second mounting seat (2), the second mounting seat (2) is provided with a second receiving groove (21), a slider (3) is slidably connected to the second receiving groove (21), a wedge (33) is fixedly connected to the upper surface of the slider (3), a third receiving groove (31) is provided on the lower surface of the slider (3), a spring (32) is sleeved in the third receiving groove (31), one end of the spring (32) is arranged in the third receiving groove (31), and the other end of the spring (32) is arranged in the second receiving groove (21), and the second Adjustment blocks (4) are hingedly connected to the outer walls of both sides of the mounting seat (2), a stopper (42) is fixedly connected to the adjustment block (4), and the stopper (42) is arranged at the top end of the slider (3), a connecting piece (5) is hingedly connected to the first mounting seat (1), a plurality of slots (52) are provided on the inner wall of the connecting piece (5), and the wedge block (33) is snapped into the slots (52), a limiting slot (53) is provided on the inner wall of the connecting piece (5) at a position corresponding to the adjustment block (4), and the adjustment block (4) is arranged in the limiting slot (53).

2. The armrest angle adjustment structure according to claim 1, characterized in that: The outer walls of both sides of the second mounting seat (2) are provided with mounting grooves (22), and the two adjustment blocks (4) are respectively arranged in the two mounting grooves (22), and the two adjustment blocks (4) are provided with through holes (41), and the through holes (41) are sleeved with fixed shafts (23), and the fixed shafts (23) are fixedly connected in the mounting grooves (22).

3. The armrest angle adjustment structure according to claim 1, characterized in that: The lower surfaces of the two stoppers (42) are fixedly connected with protrusions (43), and the upper surface of the sliding block (3) is provided with a groove (34) at a position corresponding to the protrusion (43), and a step groove (35) is provided on one side of the groove (34).

4. The armrest angle adjustment structure according to claim 1, characterized in that: The connecting member (5) is fixedly connected to an armrest body (6), and the lower surface of the first mounting seat (1) is fixedly connected to a support rod (7).

5. The armrest angle adjustment structure according to claim 1, characterized in that: The first mounting seat (1) is provided with a first receiving groove (13), and the second mounting seat (2) is fixedly connected in the first receiving groove (13), a first screw (12) is installed in the first receiving groove (13), and the first screw (12) is threadedly connected to the support rod (7).

6. The armrest angle adjustment structure according to claim 4, characterized in that: Second mounting holes (51) are provided on both side outer walls of the connecting member (5), and second screws (54) are installed in the second mounting holes (51). First mounting holes (11) are provided on both side outer walls of the first mounting seat (1) at positions corresponding to the second mounting holes (51), and the second screws (54) are threadedly connected in the first mounting holes (11).

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