Seat armrest with adjustable chair back

Abstract

The utility model provides a seat armrest with an adjustable chair back, which comprises an armrest body, a plurality of first mounting holes used for being fixedly connected with a chair seat are formed in the bottom of the armrest body, and second mounting holes used for being rotationally connected with the chair back are formed in the side wall of the armrest body; an arc-shaped groove is formed in the armrest body, one end of the adjusting block is installed in the arc-shaped groove in a sliding mode, and the other end of the adjusting block extends out of the arc-shaped groove and is fixedly connected with the side wall of the chair back; and the fixing assembly is arranged in the armrest body, and the fixing assembly is used for fixing and limiting the sliding adjusting block. The armrest has the advantages that the angle of the chair back is convenient to adjust and the overall cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of seat accessory design, in particular to a seat armrest with an adjustable seat back. Background Art

[0002] Armrests are supports that attach to the sides of a seat, usually to provide additional support and comfort.

[0003] In the prior art, as disclosed in the invention patent with publication number CN116998841A and the name of a device for adjusting the backrest, the invention comprises a bracket fixed to the seat, a support rod portion fixed to the backrest, a wrench and a limit plate, and a shift fork, wherein one end of the support rod portion is movably connected to the bracket. A rotating shaft is fixed to the bracket, and one end of the support rod portion passes through and is movably connected to the rotating shaft. The shift fork is provided with a pair of teeth symmetrically distributed at both ends of the shift fork, and two latching teeth are provided at the lower end of the wrench, one of which can cooperate with a pair of teeth of the lower end shift fork to clamp the wrench to fix it, and the other latching tooth can shift the other pair of teeth to rotate. A tooth 1 is provided at the upper end of the limit plate, and a tooth 2 meshing with the tooth 1 is provided at the lower end of the support rod portion. A coil spring is connected between the rotating shaft and the support rod portion, and a tension spring is connected between the wrench and the bracket.

[0004] As described above and similar to the adjustment method used in traditional seats, during installation, it is first necessary to install a steel plate and a multi-functional chassis on the seat, and then the seat back can be rotated in conjunction with the connection of the seat back. This method is not only inconvenient to install but also has high material costs, which is not conducive to the planning goal of reducing costs and increasing efficiency. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a seat armrest with an adjustable seat back, which is used to solve the technical problems that the existing seats with adjustable seat backs are inconvenient to install during actual production and have high material costs.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A chair armrest with an adjustable chair back comprises: an armrest body, a plurality of first mounting holes for fixedly connecting to a chair seat are provided at the bottom of the armrest body, and second mounting holes for rotationally connecting to the chair back are provided on the side wall of the armrest body; an adjustment block, an arc groove is provided on the armrest body, one end of the adjustment block is slidably installed in the arc groove, and the other end of the adjustment block extends out of the arc groove and is fixedly connected to the side wall of the chair back; a fixing component, the fixing component is provided in the armrest body, and the fixing component is used to fix and limit the adjustment block after sliding.

[0008] Working principle:

[0009] The device is a chair armrest with an adjustable chair back, which is mainly used to be installed on a chair and connected to a chair seat and a chair back respectively, and the angle of the chair back relative to the chair seat can be adjusted by the device.

[0010] During installation, the armrest body is first fixedly connected to the seat through multiple first mounting holes on the armrest body, and then the chair back is fixedly connected to the adjustment block. One side of the chair back is further rotationally connected to the second mounting hole, and the adjustment block is slid into the arc groove. At this time, the chair back can be rotated between the two armrest bodies through the sliding of the adjustment block in the arc groove.

[0011] During adjustment, the fixing assembly is operated to limit the adjustment block so that the chair back is fixed. When the adjustment block is released from the limit, the chair back can be pushed or pulled to adjust the angle of the chair back.

[0012] Beneficial effects obtained:

[0013] First, a first mounting hole and a second mounting hole are provided, and the armrest body can be effectively connected to the seat through the first mounting hole and connected to the chair back through the second mounting hole, so that it is convenient for personnel to install the armrest body on the seat.

[0014] Secondly, an adjustment block and an arc groove are provided, and the angle position of the chair back can be effectively changed by sliding the adjustment block in the arc groove.

[0015] Third, a fixing component is provided, which can effectively limit the adjustment block through the fixing component, and conveniently control the adjustment degree of the chair back. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0017] Figure 2 for Figure 1 Schematic diagram of the internal connection structure;

[0018] Figure 3 It is a schematic diagram of the connection structure between the clamping block and the driving block;

[0019] Figure 4 for Figure 1 Schematic diagram of the overall structure explosion.

[0020] In the above drawings: 1. armrest body; 2. first mounting hole; 3. second mounting hole; 4. adjustment block; 5. arc groove; 6. snap-in groove; 7. snap-in block; 8. drive block; 9. slide groove; 10. rack; 11. block; 12. baffle; 13. hand rest; 14. adjustment hole; 15. torsion spring. DETAILED DESCRIPTION

[0021] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Example:

[0023] Reference Figure 1 to Figure 4 The present application is a chair armrest with an adjustable chair back, comprising an armrest body 1, wherein the bottom of the armrest body 1 is provided with a plurality of first mounting holes 2 for fixed connection with a chair seat, and the side wall of the armrest body 1 is provided with second mounting holes 3 for rotational connection with the chair back, and the second mounting holes 3 can be rotationally connected with the chair back through an installed bearing. An adjustment block 4, wherein the armrest body 1 is provided with an arc groove 5, one end of the adjustment block 4 is slidably installed in the arc groove 5, and the other end of the adjustment block 4 extends out of the arc groove 5 and is fixedly connected to the side wall of the chair back. This arrangement can effectively adjust the rotation angle of the chair back by sliding the adjustment block 4 in the arc groove 5.

[0024] like Figure 2 , Figure 3 and Figure 4 As shown, it also includes a fixing component, which is arranged in the armrest body 1, and a section of the adjusting block 4 extending into the arc groove 5 is provided with a plurality of clamping grooves 6. The fixing component includes a clamping block 7 and a driving block 8. A slide groove 9 connected to the arc groove 5 is provided on the armrest body 1, and the clamping block 7 is slidably installed in the slide groove 9. The bottom of the clamping block 7 passes through the slide groove 9 and is clamped with one of the clamping grooves 6 on the adjusting block 4. A rack 10 is provided on the side wall of the clamping block 7, and an adjusting hole 14 connected to the slide groove 9 is provided on the side wall of the armrest body 1. The driving block 8 is rotatably installed in the adjusting hole 14 and one end extends out of the adjusting hole 14, and the other end extends into the slide groove 9. The end of the driving block 8 extending into the slide groove 9 is an arc with a tooth groove and meshes with the rack 10. A stopper 11 for preventing the clamping block 7 from falling off is provided at the opening of the slide groove 9, and a torsion spring 15 is provided between the driving block 8 and the armrest body 1. This arrangement can effectively press the driving block 8 to rotate the end of the driving block 8 and drive the rack 10 and the clamping block 7 to slide upward. When the end of the clamping block 7 slides out of the clamping groove 6, the angle of the chair back is adjusted by pushing or pulling. When it is adjusted to a suitable angle, the rebound force of the torsion spring 15 resets the driving block 8 and drives the clamping block 7 to slide downward and clamp with one of the clamping grooves 6 to complete the limitation of the chair back.

[0025] like Figure 1 As shown, the armrest body 1 is detachably provided with a baffle 12, and the baffle 12 covers the arc groove 5 and the fixing assembly. The top of the armrest body 1 is detachably provided with a hand rest 13. The above detachable connections are all completed by connecting bolts and nuts.

[0026] Working principle:

[0027] During installation, the armrest body 1 is first fixedly connected to the seat through the multiple first mounting holes 2 on the armrest body 1, and then the backrest is fixedly connected to the adjustment block 4, and one side of the backrest is further rotatably connected to the second mounting hole 3, and the adjustment block 4 is slid into the arc groove 5. At this time, the backrest can be rotatably located between the two armrest bodies 1 through the sliding of the adjustment block 4 in the arc groove 5. It is worth mentioning that there is a gap between the backrest and the seat and there is no connection relationship. During adjustment, the end of the drive block 8 is pressed to rotate the drive block 8 and drive the rack 10 and the clamping block 7 to slide upward. When the end of the clamping block 7 slides out of the clamping groove 6, the angle of the seatback is adjusted by pushing or pulling. When the angle is adjusted to a suitable angle, the rebound force of the torsion spring 15 resets the drive block 8 and drives the clamping block 7 to slide downward and clamp with one of the clamping grooves 6 to complete the position limitation of the seatback.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A chair armrest with an adjustable chair back, characterized in that: include: An armrest body (1), wherein a plurality of first mounting holes (2) for fixedly connecting to a chair seat are provided at the bottom of the armrest body (1), and second mounting holes (3) for rotationally connecting to a chair back are provided on the side wall of the armrest body (1); An adjustment block (4), wherein an arc-shaped groove (5) is provided on the armrest body (1), one end of the adjustment block (4) is slidably mounted in the arc-shaped groove (5), and the other end of the adjustment block (4) extends out of the arc-shaped groove (5) and is fixedly connected to the side wall of the chair back; A fixing component is arranged in the armrest body (1) and is used for limiting the position of the adjusting block (4) after sliding.

2. The seat armrest with an adjustable chair back according to claim 1, characterized in that: A plurality of clamping grooves (6) are provided on a section of the adjusting block (4) extending into the arc-shaped groove (5).

3. The seat armrest with an adjustable chair back according to claim 2, characterized in that: The fixing assembly comprises a clamping block (7) and a driving block (8); a slide groove (9) connected to the arc groove (5) is provided on the armrest body (1); the clamping block (7) is slidably mounted in the slide groove (9); the bottom of the clamping block (7) passes through the slide groove (9) and is clamped with one of the clamping grooves (6) on the adjustment block (4); a rack (10) is provided on the side wall of the clamping block (7); an adjustment hole (14) connected to the slide groove (9) is provided on the side wall of the armrest body (1); the driving block (8) is rotatably mounted in the adjustment hole (14) with one end extending out of the adjustment hole (14) and the other end extending into the slide groove (9); the end of the driving block (8) extending into the slide groove (9) is arc-shaped with a tooth groove and meshes with the rack (10).

4. The seat armrest with an adjustable chair back according to claim 3, characterized in that: A stopper (11) is provided at the opening of the slide groove (9) for preventing the clamping block (7) from falling off.

5. The seat armrest with an adjustable chair back according to claim 3, characterized in that: A torsion spring (15) is provided between the driving block (8) and the armrest body (1).

6. The seat armrest with an adjustable chair back according to claim 1, characterized in that: The armrest body (1) is detachably provided with a baffle (12), and the baffle (12) covers the arc groove (5) and the fixing component.

7. The seat armrest with an adjustable chair back according to claim 1, characterized in that: The top of the armrest body (1) is detachably provided with a hand rest (13).

Images