Glass fiber reinforced plastic seat with adjustable backrest

Abstract

The utility model discloses a glass -fibre reinforced plastic seat convenient to adjust backrest angle, it includes seat, one end of seat is provided with backrest, the inside of seat is provided with two support plate, the inside of support plate all is provided with the sliding slot, the inside of sliding slot is provided with sliding plate, one side of support plate is provided with the through groove, and the inside of through groove is provided with the round hole. Through above -mentioned structure, the glass -fibre reinforced plastic seat convenient to adjust backrest angle of this technical scheme, pull the pull plate and drive the fixed plate stretch spring, and the limit shaft is from the round hole and is taken out, and the locking of sliding plate is removed, and the backrest can drive the sliding plate and move along the sliding slot, and the pull plate is loosened after adjusting to the appropriate angle, and the spring reset limit shaft is embedded in the corresponding round hole, and the fixed is completed, and it is ensured that the backrest is not loose after adjusting, and it is not deviated, and can satisfy the different scene demand of sitting posture office, half lying rest etc.

Description

Technical Field

[0001] This utility model relates to the field of adjustable seat technology, and in particular to a fiberglass seat that is easy to adjust the backrest angle. Background Technology

[0002] In office settings, home life, transportation, and leisure venues, chairs, as the core equipment supporting the human body, directly affect the user experience and physical health due to their comfort and adaptability.

[0003] When using the chair, users first adjust the seat angle according to their needs by rotating the adjustment knob to make the backrest fit the user's back better, distribute the pressure on the body, and reduce problems such as the lower back being unsupported and uneven back pressure. However, after adjusting the seat angle by rotating the adjustment knob, the fixed position of the backrest cannot meet the needs of different scenarios. At the same time, if the user leans against it for a long time, the backrest may slowly slide down or sway slightly, which not only affects comfort, but may also cause sudden changes in the pressure on the lower back and back due to sudden displacement, causing discomfort. Therefore, in order to solve this problem, we have proposed a fiberglass chair with an easily adjustable backrest angle. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a fiberglass seat with an adjustable backrest angle. After fixing, it ensures that the backrest does not loosen or shift after adjustment, which can meet the needs of different scenarios such as sitting office and semi-reclining rest. It provides close support for the waist and back, improves the comfort of long-term use, and provides guiding support for the arc-shaped extrusion plate to ensure smooth adjustment. The arc-shaped extrusion plate can compress the backrest, making the backrest more in line with the back curve, adapting to different users, and making the back pressure even.

[0005] This utility model also provides a fiberglass seat with an adjustable backrest angle as described above, including a seat, a backrest at one end of the seat, two support plates inside the seat, each support plate having a groove inside, a sliding plate inside the groove, a through groove on one side of the support plate, a round hole inside the through groove, two support shafts fixedly installed at one end of the sliding plate, springs fixedly installed above each of the two support shafts, a limit shaft outside each support shaft, and an arc-shaped extrusion plate at one end of the backrest.

[0006] According to the fiberglass seat of this utility model that facilitates adjustment of backrest angle, a fixing plate is fixedly installed above the limiting shaft, and a pull plate is fixedly installed at one end of the fixing plate.

[0007] According to the fiberglass seat of this utility model, which is easy to adjust the backrest angle, one end of the spring is fixedly connected to the fixing plate, and the limiting shaft is set inside the circular hole.

[0008] According to the fiberglass seat of this utility model that facilitates adjustment of backrest angle, a limiting circular plate is fixedly installed above the support shaft, and a positioning circular plate is fixedly installed below the limiting shaft, with the limiting circular plate and the positioning circular plate in close contact.

[0009] According to the fiberglass seat of this utility model, which is easy to adjust the backrest angle, one end of the sliding plate is fixedly installed with an mounting plate, and one end of the mounting plate is fixedly connected to the backrest.

[0010] According to the fiberglass seat of this utility model, which is easy to adjust the backrest angle, the mounting plate is provided with a threaded rod inside, and a movable sleeve is fitted on the outer thread of the threaded rod. The movable sleeve is fixedly connected to the arc-shaped extrusion plate.

[0011] According to the fiberglass seat of this utility model, which is easy to adjust the backrest angle, a telescopic rod is fixedly installed at one end of the mounting plate, and a movable sleeve is fixedly installed at one end of the arc-shaped extrusion plate. The movable sleeve is located outside the telescopic rod.

[0012] According to the fiberglass seat of this utility model, which is easy to adjust the backrest angle, the other end of the mounting plate is provided with a rotating ring, one end of the threaded rod extends into the interior of the rotating ring, and the threaded rod is threadedly connected to the rotating ring.

[0013] Beneficial effects:

[0014] 1. The fiberglass seat with an adjustable backrest angle in this technical solution allows for easy adjustment of the backrest angle. Pulling the pull plate causes the fixed plate to stretch the spring, and the limiting shaft disengages from the round hole, releasing the lock on the sliding plate. Pushing the backrest moves the sliding plate along the slide groove. After adjusting to the appropriate angle, releasing the pull plate causes the spring to reset and the limiting shaft to re-enter the corresponding round hole, completing the fixation. This ensures that the backrest does not loosen or shift after adjustment, meeting the needs of different scenarios such as sitting for work and semi-reclining for rest. It provides close support for the waist and back, improving comfort during long-term use.

[0015] 2. Rotating the rotating ring drives the threaded rod to rotate, which in turn moves the movable sleeve along the threaded rod, thereby adjusting the position of the arc-shaped extrusion plate. The telescopic rod cooperates with the movable sleeve to provide guide support for the arc-shaped extrusion plate, ensuring smooth adjustment. The arc-shaped extrusion plate can compress the backrest, making the backrest fit the curve of the back more closely, adapting to different users, and ensuring even force distribution on the back. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 A perspective view of a fiberglass seat with an adjustable backrest angle proposed in this utility model;

[0018] Figure 2 A structural diagram of the backrest of a fiberglass seat that is easy to adjust the backrest angle, as proposed in this utility model;

[0019] Figure 3 This utility model provides a structural diagram of a mounting plate for a fiberglass seat with an adjustable backrest angle.

[0020] Figure 4 This utility model presents a structural diagram of an arc-shaped extruded plate for a fiberglass seat that facilitates backrest angle adjustment.

[0021] Figure 5 The present utility model proposes Figure 3 Enlarged view of point A in the middle.

[0022] Legend:

[0023] 1. Seat; 2. Backrest; 3. Support plate; 4. Slide groove; 5. Sliding plate; 6. Through groove; 7. Round hole; 8. Support shaft; 9. Spring; 10. Limiting shaft; 11. Fixing plate; 12. Pulling plate; 13. Arc-shaped extrusion plate; 14. Limiting round plate; 15. Positioning round plate; 16. Mounting plate; 17. Threaded rod; 18. Movable sleeve; 19. Telescopic rod; 20. Rotating ring; 21. Moving sleeve. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] Please see Figure 1 ,read Figure 2 ,read Figure 4 ,read Figure 5This utility model discloses a fiberglass seat with an adjustable backrest angle, comprising a seat 1 for easy support of a human body. A backrest 2 is provided at one end of the seat 1 for user comfort. Two support plates 3 are provided inside the seat 1 to support the backrest 2 for adjustment. Each support plate 3 has a groove 4 inside, and a sliding plate 5 is provided inside the groove 4 to facilitate movement of the backrest 2. A through groove 6 is provided on one side of the support plate 3, and a round hole 7 is provided inside the through groove 6. Two support shafts 8 are fixedly installed at one end of the sliding plate 5, and springs 9 are fixedly installed above each of the two support shafts 8. The elasticity of the springs 9 facilitates the resetting of a limiting shaft 10. Limiting shafts 10 are provided on the outside of each support shaft 8. An arc-shaped extrusion plate 13 is provided at one end of the backrest 2 to facilitate adaptation of the backrest 2 to different user needs.

[0026] Please see Figure 5 A fixing plate 11 is fixedly installed above the limiting shaft 10, and a pulling plate 12 is fixedly installed at one end of the fixing plate 11. The pulling plate 12 can be used to easily stretch the spring 9.

[0027] Please see Figure 5 One end of the spring 9 is fixedly connected to the fixed plate 11, and the limiting shaft 10 is set inside the round hole 7. The backrest 2 can be limited by the limiting shaft 10 set inside the round hole 7.

[0028] Please see Figure 5 A limiting circular plate 14 is fixedly installed above the supporting shaft 8, and a positioning circular plate 15 is fixedly installed below the limiting shaft 10. The limiting circular plate 14 and the positioning circular plate 15 are in close contact. When the limiting circular plate 14 and the positioning circular plate 15 are in close contact, the limiting shaft 10 can be limited.

[0029] Please see Figure 4 A mounting plate 16 is fixedly installed on one end of the sliding plate 5. One end of the mounting plate 16 is fixedly connected to the backrest 2. The fixed connection between one end of the mounting plate 16 and the backrest 2 facilitates the installation of the backrest 2.

[0030] Please see Figure 4 The mounting plate 16 has a threaded rod 17 inside, and a movable sleeve 18 is fitted on the external thread of the threaded rod 17. The movable sleeve 18 is fixedly connected to the arc-shaped extrusion plate 13. The fixed connection between the movable sleeve 18 and the arc-shaped extrusion plate 13 facilitates the guidance of the arc-shaped extrusion plate 13.

[0031] Please see Figure 4 One end of the mounting plate 16 is fixedly mounted with a telescopic rod 19, and one end of the arc-shaped extrusion plate 13 is fixedly mounted with a movable sleeve 21. The movable sleeve 21 is located outside the telescopic rod 19 and can be used for guidance by being located outside the telescopic rod 19.

[0032] Please see Figure 3 ,read Figure 4 The other end of the mounting plate 16 is provided with a rotating ring 20, and one end of the threaded rod 17 extends into the interior of the rotating ring 20. The threaded rod 17 is threadedly connected to the rotating ring 20. The threaded connection between the threaded rod 17 and the rotating ring 20 facilitates the rotation of the threaded rod 17.

[0033] Working principle: Pulling the pull plate 12 upward causes the fixed plate 11, which is fixedly connected to it, to move synchronously. The fixed plate 11 stretches the spring 9, one end of which is fixed to the fixed plate 11, and the other end is indirectly connected to the support shaft 8. As the fixed plate 11 moves upward, the limiting shaft 10 below it moves upward synchronously and disengages from the circular hole 7 in the through groove 6 of the support plate 3, releasing the locking constraint on the sliding plate 5. During this process, the limiting circular plate 14 above the support shaft 8 and the positioning circular plate 15 below the limiting shaft 10 remain in close contact. Touch to ensure smooth movement of the limiting shaft 10 and prevent deviation. After unlocking, push the backrest 2. The backrest 2 drives the mounting plate 16 fixed at one end to move synchronously. The sliding plate 5 at the other end of the mounting plate 16 moves along the sliding groove 4 inside the support plate 3 to adjust the backrest 2. When adjusted to the target angle such as sitting office or semi-reclining rest, release the pull plate 12. The spring 9 elastically returns to its original position. Pull the fixing plate 11 to drive the limiting shaft 10 downward to fit into the corresponding round hole 7, and relock the sliding plate 5 to ensure that the backrest 2 does not loosen after adjustment. To ensure a snug fit and support for the waist and back without deviation, the position of the curved extrusion plate 13 needs to be adjusted to enhance the fit. Rotating the rotating ring 20 at the other end of the mounting plate 16, which is threadedly connected to the threaded rod 17 inside the mounting plate 16, converts the rotation of the rotating ring 20 into axial movement of the threaded rod 17. This, in turn, drives the movable sleeve 18, which is externally threaded onto the threaded rod 17, to move synchronously. The movable sleeve 18 is fixedly connected to the curved extrusion plate 13, ultimately driving the curved extrusion plate 13 closer to or further away from the backrest 2. During adjustment, the telescopic rod 19 fixed at one end of the mounting plate 16 cooperates with the movable sleeve 21 at one end of the arc-shaped extrusion plate 13. The movable sleeve 21 slides smoothly along the outside of the telescopic rod 19, providing guide support for the arc-shaped extrusion plate 13, ensuring that the adjustment process is smooth and without deviation. By adjusting the position of the arc-shaped extrusion plate 13, it can be made to tightly press against the backrest 2, making the backrest 2 more conform to the curve of the user's back, achieving even distribution of back pressure, further improving the comfort support performance of the seat 1, and adapting to the needs of users with different body types and sitting postures.

[0034] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A fiberglass seat with an adjustable backrest angle, comprising a seat (1), characterized in that: The seat (1) has a backrest (2) at one end. The seat (1) has two support plates (3) inside. Each support plate (3) has a groove (4) inside. Each groove (4) has a sliding plate (5) inside. One side of the support plate (3) has a through groove (6) inside. The through groove (6) has a round hole (7) inside. One end of the sliding plate (5) has two support shafts (8) fixedly installed. Each support shaft (8) has a spring (9) fixedly installed above it. Each support shaft (8) has a limit shaft (10) outside it. One end of the backrest (2) has an arc-shaped extrusion plate (13).

2. The fiberglass seat with adjustable backrest angle according to claim 1, characterized in that, A fixing plate (11) is fixedly installed above the limiting shaft (10), and a pulling plate (12) is fixedly installed at one end of the fixing plate (11).

3. The fiberglass seat with adjustable backrest angle according to claim 1, characterized in that, One end of the spring (9) is fixedly connected to the fixing plate (11), and the limiting shaft (10) is located inside the round hole (7).

4. The fiberglass seat with adjustable backrest angle according to claim 1, characterized in that, A limiting circular plate (14) is fixedly installed above the supporting shaft (8), and a positioning circular plate (15) is fixedly installed below the limiting shaft (10). The limiting circular plate (14) and the positioning circular plate (15) are in close contact.

5. The fiberglass seat with adjustable backrest angle according to claim 1, characterized in that, One end of the sliding plate (5) is fixedly installed with an mounting plate (16), and one end of the mounting plate (16) is fixedly connected to the backrest (2).

6. A fiberglass seat with an adjustable backrest angle according to claim 5, characterized in that, The mounting plate (16) has a threaded rod (17) inside, and a movable sleeve (18) is fitted on the external thread of the threaded rod (17). The movable sleeve (18) is fixedly connected to the arc-shaped extrusion plate (13).

7. The fiberglass seat with adjustable backrest angle according to claim 5, characterized in that, One end of the mounting plate (16) is fixedly mounted with a telescopic rod (19), and one end of the arc-shaped extrusion plate (13) is fixedly mounted with a movable sleeve (21). The movable sleeve (21) is located outside the telescopic rod (19).

8. The fiberglass seat with adjustable backrest angle according to claim 6, characterized in that, The other end of the mounting plate (16) is provided with a rotating ring (20), and one end of the threaded rod (17) extends into the interior of the rotating ring (20). The threaded rod (17) is threadedly connected to the rotating ring (20).

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