Labor-saving type adjusting handrail with long lever

Abstract

The utility model discloses a long lever labor-saving type adjusting handrail which comprises a stand column, a fixing frame and a handrail face, the handrail face is buckled on the fixing frame, the fixing frame is provided with a trigger and a fixing iron sheet, the trigger is connected with the fixing iron sheet through a rotating cylinder, so that the trigger can rotate around the fixing iron sheet, and the fixing iron sheet is fixed on the stand column. A spring is arranged between the trigger and the fixing frame, one end of the spring is connected with the trigger, and the other end of the spring abuts against the fixing frame. The stand column is sleeved with an adjusting fixing sleeve, and the adjusting fixing sleeve is fixedly installed on the stand column through a fixing cylinder. According to the adjusting handrail provided by the utility model, a long lever structure formed by the trigger is utilized, and the rotating cylinder is used as a fulcrum to be matched with the spring, so that a user can realize unlocking and angle adjustment only by small pressing force, and the labor-saving effect is achieved; the handrail surface can be greatly and easily adjusted, and the handrail is simple in overall structure, reliable in function and convenient to assemble.

Description

Technical Field

[0001] This utility model relates to an adjustable handrail, and more particularly to a long lever-type adjustable handrail that saves effort. Background Technology

[0002] Currently, office chair armrests on the market are typically fixed, with some featuring height adjustment. When a user leans back, the armrests do not rotate accordingly. When the angle of inclination is slightly too large, the elbow only touches the back of the armrest surface, instead of the entire arm touching the armrest. This prevents the arm from finding a comfortable resting position, impacting the user experience. Furthermore, the existing armrest structures require considerable effort to adjust over a wide range. Therefore, it is necessary to provide a long-lever, effort-saving adjustable armrest. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a long lever-type labor-saving adjustable handrail, which solves the problem that the existing handrail structure cannot be easily adjusted to a large extent.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is to provide a long lever-type labor-saving adjustable handrail, including a column, a fixed frame, and a handrail surface. The handrail surface is fastened to the fixed frame. The fixed frame is provided with a trigger and a fixed iron plate. The trigger and the fixed iron plate are connected by a rotating cylinder, so that the trigger can rotate around the fixed iron plate. A spring is provided between the trigger and the fixed frame. One end of the spring is connected to the trigger, and the other end of the spring abuts against the fixed frame. An adjusting fixing sleeve is provided on the outer sleeve of the column. The adjusting fixing sleeve is fixed to the column by the fixing cylinder.

[0005] In the aforementioned long lever labor-saving adjustable handrail, the adjusting fixing sleeve is provided with a back fixing iron plate, and the back fixing iron plate is connected to the back connecting piece.

[0006] In the aforementioned long lever-type adjustable handrail that saves effort, the handrail surface and the fixing frame are locked together by flat-head self-tapping screws.

[0007] In the aforementioned long-lever, labor-saving adjustable handrail, the fixing frame and the column are locked together by round-head self-tapping screws.

[0008] Compared with the prior art, the present invention has the following advantages: The adjustable armrest provided by the present invention utilizes a long lever structure formed by a trigger, with a rotating cylinder as the fulcrum and a spring, so that the user can unlock and adjust the angle with only a small pressing force, thus achieving the effect of saving effort; not only can the armrest surface be easily adjusted by a large range, but the overall structure is simple, the function is reliable, and it is easy to assemble. Attached Figure Description

[0009] Figure 1This is a schematic diagram of the long lever-type adjustable handrail in an embodiment of the present invention.

[0010] The diagram is marked as follows:

[0011] 1. Back connector; 2. Back fixing plate; 3. Adjusting fixing sleeve; 4. Column; 5. Fixing cylinder; 6. Fixing plate; 7. Trigger; 8. Spring; 9. Fixing bracket; 10. Handrail surface; 11. Round head self-tapping screw; 12. Flat head self-tapping screw; 13. Rotating cylinder. Detailed Implementation

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the long lever-type adjustable handrail in an embodiment of the present invention.

[0014] Please see Figure 1 The long lever-type adjustable handrail of this utility model embodiment includes a column 4, a fixing frame 9, and a handrail surface 10. The handrail surface 10 is fastened to the fixing frame 9. The fixing frame 9 is provided with a trigger 7 and a fixed iron plate 6. The trigger 7 and the fixed iron plate 6 are connected by a rotating cylinder 13, so that the trigger 7 can rotate around the fixed iron plate 6. A spring 8 is provided between the trigger 7 and the fixing frame 9. One end of the spring 8 is connected to the trigger 7, and the other end of the spring 8 abuts against the fixing frame 9. An adjusting fixing sleeve 3 is provided on the column 4. The adjusting fixing sleeve 3 is installed and fixed on the column 4 by a fixing cylinder 5.

[0015] In this embodiment of the utility model, the adjustable armrest includes a back fixing plate 2 in the adjusting fixing sleeve 3. The back fixing plate 2 is connected to the back connector 1, which can be connected to the seat back basket. The armrest surface 10 and the fixing frame 9 are locked together by flat-head self-tapping screws 12; the fixing frame 9 and the column 4 are locked together by round-head self-tapping screws 11.

[0016] The adjustable handrail of this utility model embodiment has a simple overall structure and is easy to assemble. The specific assembly process is as follows: Place the spring 8 into the trigger, fasten the trigger 7 to the fixed iron plate 6, and then assemble it with the fixed frame 9, and hammer in the rotating cylinder 13; install the assembled fixed frame trigger structure into the column 4, lock five round-head self-tapping screws 11 on the fixed frame 9, fasten the handrail surface 10 onto the fixed frame 9, and lock five flat-head self-tapping screws 12; fit the column 4 into the adjusting fixed sleeve 3, install the fixed cylinder 5, install the back fixed iron plate 2 into the adjusting fixed sleeve 3, and finally install the assembled handrail into the back connector 1 to complete the assembly.

[0017] The adjustable armrest of this embodiment allows for easy and significant adjustment of the armrest surface simply by operating trigger 7. The adjustment process is as follows: press the trigger -> unlock the fixing plate -> adjust the armrest surface angle -> release the trigger -> the spring returns the fixing plate to its original position -> lock the new angle. The specific adjustment process is as follows:

[0018] Trigger unlock: Press trigger 7 when the user needs to adjust the armrest angle.

[0019] Lever action and unlocking: When the trigger 7 is pressed, it rotates around the rotating cylinder 13 that connects it to the fixed iron plate 6; this pressing action overcomes the elastic force of the spring 8.

[0020] Unlocking: The rotation of trigger 7 will drive or act on the fixed iron plate 6 connected to it, causing the fixed iron plate 6 to disengage from its original locked position (this locked position is usually engaged with the groove on the adjusting fixed sleeve 3 or related structure).

[0021] Free adjustment: With the trigger 7 pressed (i.e., the fixed iron plate 6 is in the unlocked state), the user can freely and significantly rotate or move the armrest surface 10 to the desired angle position.

[0022] Locking in the new position: After the armrest surface 10 is adjusted to the target angle, release the trigger 7. At this time, the elastic force of the spring 8 will push the trigger 7 to automatically reset. The reset of the trigger 7 will cause the fixing plate 6 to re-engage into the corresponding slot or locking position on the adjusting fixing sleeve 3 or related structure, thereby firmly locking the armrest surface 10 at the new angle.

[0023] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the claims.

Claims

1. A long lever-type labor-saving adjustable handrail, characterized in that, The device includes a column (4), a fixing frame (9), and a handrail surface (10). The handrail surface (10) is fastened to the fixing frame (9). The fixing frame (9) is equipped with a trigger (7) and a fixed iron plate (6). The trigger (7) and the fixed iron plate (6) are connected by a rotating cylinder (13), so that the trigger (7) can rotate around the fixed iron plate (6). A spring (8) is provided between the trigger (7) and the fixing frame (9). One end of the spring (8) is connected to the trigger (7), and the other end of the spring (8) abuts against the fixing frame (9). The column (4) is covered with an adjusting fixing sleeve (3), which is fixed to the column (4) by a fixing cylinder (5).

2. The long lever-type adjustable handrail as described in claim 1, characterized in that, The adjusting fixing sleeve (3) is provided with a back fixing iron plate (2), and the back fixing iron plate (2) is connected to the back connector (1).

3. The long lever-type adjustable handrail as described in claim 1, characterized in that, The handrail surface (10) and the fixing frame (9) are locked together by flat-head self-tapping screws (12).

4. The long lever-type adjustable handrail as described in claim 1, characterized in that, The fixing frame (9) and the column (4) are locked together by round-head self-tapping screws (11).

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