Seat armrest support rotating structure

Abstract

The utility model relates to the technical field of seat armrest supports, in particular to a seat armrest support rotating structure which comprises a fixing seat and a fixing plate on the fixing seat, a rotating shaft is rotatably connected onto the fixing plate, a rotating seat fixedly connected with the rotating shaft is arranged above the fixing plate, and a connecting rod is vertically arranged on the rotating seat in a penetrating mode. The upper end of the connecting rod is connected with a pressing plate, the pressing plate is provided with a handrail support through an unlocking rod, the connecting rod is sleeved with a first elastic piece, the upper end and the lower end of the first elastic piece abut against or are connected with the pressing plate and the rotating base respectively, the lower end of the connecting rod is connected with a locking shaft located below the rotating base, and the locking shaft is horizontally arranged. An open groove in sliding connection with the locking shaft is formed in the eccentric position of the fixing plate; the open groove comprises an arc-shaped groove with the axis of the rotating shaft as the circle center, the side, away from the axis of the rotating shaft, of the arc-shaped groove is communicated with a plurality of lock grooves at equal intervals, the inclination angle of the armrest support can be conveniently, simply and flexibly adjusted, and the comfort and convenience of the seat are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seat armrest brackets, in particular to a seat armrest bracket rotating structure. Background Art

[0002] The armrests of chairs currently on the market are generally fixed, with relatively simple functions and poor functionality. Especially when users sit for a long time to work, they are more likely to feel tired and cannot meet people's needs.

[0003] For example, on July 3, 2020, a patent for an office chair with an announcement number of CN210902231U and a name of "A patent for an office chair with armrests that can be rotated forward and backward and adjusted" was disclosed. The patent includes a seat body with a pair of seat armrests installed on the seat body. The seat armrests include a fixed seat connected to the seat body, a support sleeve movably connected to the fixed seat, and an armrest support movably connected to the support sleeve. The support sleeve and the fixed seat are connected in an up and down lifting manner. A rotating device for realizing the rotation of the armrest support is provided between the armrest support and the support sleeve. The armrest support of this utility model can rotate forward and backward; however, in the above documents, the forward and backward rotation of the armrest support is controlled by the user pinching the armrest support and applying an upward or downward force to thereby realize the upward adjustment of the armrest support or the armrest support completes the upward adjustment, and the user's operation is relatively laborious. Summary of the invention

[0004] In view of this, the purpose of the utility model is to provide a seat armrest bracket rotation structure to solve the problem that it is laborious to adjust the armrest support.

[0005] The cam is an angular channel formed between a pair of camshafts and a plurality of camshafts, the cam being abutted against the stopper and having a plurality of camshafts connected to the camshaft respectively.

[0006] Optionally, a support frame is fixedly connected to the rotating seat, and an insertion groove is provided in the support frame, and the pressure plate and the unlocking rod are accommodated in the insertion groove.

[0007] Optionally, a support sleeve is provided on the outer side of the support frame, and the armrest support is connected to the unlocking rod through the support sleeve.

[0008] Optionally, a vertical slide rail is arranged in the extending groove, and a slide bar slidably connected to the vertical slide rail is arranged on the unlocking rod.

[0009] Optionally, the lower end of the unlocking rod is connected to the pressure plate via a second elastic member.

[0010] Optionally, the outer cover of the second elastic member is provided with a multi-section telescopic sheath, and two ends of the multi-section telescopic sheath are respectively fixedly connected to the unlocking rod and the pressure plate.

[0011] Optionally, both the first elastic member and the second elastic member are elastic springs.

[0012] Optionally, a horizontal through hole is penetrated through the side wall of the support sleeve, a pin is horizontally slidably connected in the horizontal through hole, and a limiting groove that cooperates with the pin is opened on the outer side wall of the support frame.

[0013] The beneficial effects of the utility model: the utility model provides a seat armrest bracket rotation structure, which presses down the armrest support so that the locking shaft is disengaged from the locking of the locking groove, and the locking shaft comes into the arc groove. At this time, the user swings the armrest support to a suitable tilt angle, and then relaxes the downward pressure on the armrest support. The locking shaft comes into the locking groove under the action of the first elastic member. At this time, the armrest support is adjusted to a suitable tilt angle. The operation is simple and flexible, which increases the comfort and convenience of the seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] 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 only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0017] Figure 3 It is a side view structural schematic diagram of the utility model;

[0018] Figure 4 for Figure 3 Schematic diagram of the enlarged structure at point B.

[0019] In the figure: 1. armrest support; 2. support sleeve; 3. support frame; 4. unlocking rod; 5. insertion slot; 6. first elastic member; 7. second elastic member; 8. locking shaft; 9. rotating shaft; 10. arc groove; 11. locking groove; 12. fixing plate; 13. fixing seat; 14. rotating seat; 15. pressing plate; 16. connecting rod. DETAILED DESCRIPTION

[0020] In order to make the purpose, 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 and with reference to the accompanying drawings.

[0021] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] like Figure 1-4 As shown, a seat armrest bracket rotation structure includes a fixed seat 13, a fixed plate 12 is fixedly connected to the fixed seat 13, a horizontally arranged rotating shaft 9 is rotatably connected to the fixed plate 12, the axis of the rotating shaft 9 is arranged parallel to the upper end surface of the fixed seat 13, a rotating seat 14 fixedly connected to the rotating shaft 9 is arranged above the fixed plate 12, a connecting rod 16 is vertically penetrated on the rotating seat 14, a pressing plate 15 is connected to the upper end of the connecting rod 16, and an armrest support 1 is arranged on the pressing plate 15 through an unlocking rod 4, the A first elastic member 6 is sleeved on the outside of the connecting rod 16, and the upper and lower ends of the first elastic member 6 are respectively abutted or connected to the pressure plate 15 and the rotating seat 14, and the lower end of the connecting rod 16 is connected to a locking shaft 8 located below the rotating seat 14, and the locking shaft 8 is horizontally arranged, and an eccentric position on the fixed plate 12 is provided with a groove slidably connected to the locking shaft 8; the groove includes an arc groove 10 with the axis of the rotating shaft 9 as the center, and a plurality of locking grooves 11 are evenly spaced and connected on one side of the arc groove 10 away from the axis of the rotating shaft 9.

[0023] When the inclination angle of the armrest support 1 needs to be adjusted, the armrest support 1 is pressed downward, and the unlocking rod 4 moves downward to squeeze the pressing plate 15, so that the pressing plate 15 and the locking shaft 8 connected thereto are pressed and moved downward, and the locking shaft 8 is disengaged from the lock of the locking groove 11, and the locking shaft 8 comes into the arc groove 10. At this time, the user swings the armrest support 1. After swinging the armrest support 1 to a suitable inclination angle, the downward pressure on the armrest support 1 is released, and the locking shaft 8 comes into the locking groove 11 under the action of the first elastic member 6. At this time, the armrest support 1 is adjusted to a suitable inclination angle, thereby meeting the user's usage needs. The operation is simple and flexible, and the comfort and convenience of the seat are increased.

[0024] The rotating seat 14 is fixedly connected to a support frame 3, in which an insertion groove 5 is provided. The pressure plate 15 and the unlocking rod 4 are accommodated in the insertion groove 5. The arrangement of the support frame 3 facilitates the accommodation of the pressure plate 15, the unlocking rod 4 and the first elastic member 6, and also strengthens the support for the armrest support 1.

[0025] A support sleeve 2 is sleeved on the outer side of the support frame 3 , and the armrest support 1 is connected to the unlocking rod 4 through the support sleeve 2 , so as to prevent debris from falling into the insertion slot 5 and thus affecting the rotation adjustment of the armrest support 1 .

[0026] A vertical slide rail is arranged in the extending groove 5, and a slide bar slidably connected to the vertical slide rail is arranged on the unlocking rod 4, so as to limit the unlocking rod 4 to move only up and down, and prevent the moving direction of the unlocking rod 4 from being deflected.

[0027] The lower end of the unlocking rod 4 is connected to the pressing plate 15 via the second elastic member 7, so as to facilitate the elastic connection between the unlocking rod 4 and the pressing plate 15 and reduce the impact force of the unlocking rod 4 pressing down on the pressing plate 15.

[0028] The outer cover of the second elastic member 7 is provided with a multi-section telescopic sheath, and the two ends of the multi-section telescopic sheath are respectively fixedly connected to the unlocking rod 4 and the pressure plate 15. The provision of the multi-section telescopic sheath facilitates the protection of the second elastic member 7.

[0029] The first elastic member 6 and the second elastic member 7 are both elastic springs.

[0030] The side wall of the support sleeve 2 is penetrated by a horizontal through hole, and a pin is horizontally slidably connected in the horizontal through hole. A limiting groove that cooperates with the pin is opened on the outer wall of the support frame 3. When people put their arms on the armrest support 1, in order to prevent the arm from pressing down the armrest support 1 with force to make the armrest support 1 in a rotatable state, the end of the pin is inserted into the limiting groove, so that the armrest support 1 cannot rotate when the armrest support 1 is pressed down; when the armrest support 1 needs to be adjusted, the pin is disengaged from the limiting groove setting. At this time, the armrest support 1 is pressed down, so that the locking shaft 8 is disengaged from the locking of the locking groove 11, and then the rotation of the armrest support 1 can be controlled, and the inclination angle of the armrest support 1 can be adjusted, thereby meeting the user's usage needs and increasing the comfort and convenience of the seat.

[0031] A person 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 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.

[0032] The embodiments of the present invention are 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 seat armrest bracket rotation structure, comprising a fixed seat, to which a fixed plate is fixedly connected, characterized in that: The fixing plate is rotatably connected to a horizontally arranged rotating shaft, a rotating seat fixedly connected to the rotating shaft is arranged above the fixing plate, a connecting rod is vertically penetrated through the rotating seat, the upper end of the connecting rod is connected to a pressure plate, an armrest support is arranged on the pressure plate through an unlocking rod, a first elastic member is sleeved on the outer side of the connecting rod, the upper and lower ends of the first elastic member are respectively abutted or connected to the pressure plate and the rotating seat, the lower end of the connecting rod is connected to a locking shaft located below the rotating seat, the locking shaft is horizontally arranged, and an eccentric position of the fixing plate is provided with a groove slidably connected to the locking shaft; the groove includes an arc groove with the axis of the rotating shaft as the center, and a plurality of locking grooves are connected at equal intervals on the side of the arc groove away from the axis of the rotating shaft.

2. The seat armrest bracket rotating structure according to claim 1, characterized in that: A support frame is fixedly connected to the rotating seat, and an insertion groove is provided in the support frame. The pressure plate and the unlocking rod are accommodated in the insertion groove.

3. The seat armrest bracket rotating structure according to claim 2, characterized in that: A support sleeve is provided on the outer side of the support frame, and the armrest support is connected to the unlocking rod through the support sleeve.

4. The seat armrest bracket rotating structure according to claim 2, characterized in that: A vertical slide rail is arranged in the extending groove, and a slide bar slidably connected to the vertical slide rail is arranged on the unlocking rod.

5. The seat armrest bracket rotating structure according to claim 1 or 2, characterized in that: The lower end of the unlocking rod is connected to the pressing plate through a second elastic member.

6. The seat armrest bracket rotating structure according to claim 5, characterized in that: The outer cover of the second elastic member is provided with a multi-section telescopic sheath, and two ends of the multi-section telescopic sheath are respectively fixedly connected to the unlocking rod and the pressing plate.

7. The seat armrest bracket rotating structure according to claim 5, characterized in that: The first elastic member and the second elastic member are both elastic springs.

8. The seat armrest bracket rotating structure according to claim 3, characterized in that: The side wall of the support sleeve is penetrated by a horizontal through hole, a pin is horizontally slidably connected in the horizontal through hole, and a limiting groove which is engaged with the pin is opened on the outer side wall of the support frame.

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