Lightweight operator folding seat

Abstract

The utility model provides a kind of lightweight operator folding seat, belong to military seat technical field.It includes pedestal support frame, and the top of pedestal support frame forms cushion mounting table, cushion is set on cushion mounting table, the both sides of the rear end of cushion are provided with the hinge frame that is fixed on cushion mounting table and same mirror image structure, two hinge frames are all hinged with the connecting frame that is same mirror image structure and presents '' L '' type by hinge shaft, the nylon washer that is located between hinge frame and connecting frame is sleeved on the hinge shaft, backrest support is fixed between two the connecting frame, and the front side of backrest support is fixed with backrest pad.The utility model has the advantages of simple structure, convenient operation and strong durability, and enhances operator riding experience.

Description

Technical Field

[0001] This utility model belongs to the field of military seating technology, specifically referring to a lightweight operator folding seat. Background Technology

[0002] In modern military vehicles, interior space is limited and precious. To meet diverse mission requirements, the interior layout needs to be highly efficient. The operator's seat, as a frequently used seat, must not only provide comfort and safety but also be able to fold quickly to create more space for personnel movement or to perform other tactical maneuvers.

[0003] In existing military vehicles, folding chairs typically employ complex locking mechanisms involving numerous parts, which can lead to loosening and wear after prolonged use. Furthermore, this traditional connection structure makes it difficult to achieve rapid backrest folding, often requiring multiple coordinated actions, resulting in poor ergonomics. Utility Model Content

[0004] The purpose of this utility model is to provide a lightweight operator folding seat that achieves easy folding while providing sufficient strength. It has a simple overall structure, high durability, and improves operator work efficiency and riding experience.

[0005] The purpose of this utility model is achieved as follows: A lightweight operator folding chair includes a base support frame, the top of which forms a seat cushion mounting platform. A seat cushion is mounted on the seat cushion mounting platform. Two hinge frames with identical mirror structures are fixed to the seat cushion mounting platform on both sides of the rear end of the seat cushion. Each hinge frame is hinged with a mirror-shaped connecting frame with identical mirror structures via a hinge shaft. A nylon washer is sleeved on the hinge shaft and located between the hinge frame and the connecting frame. A backrest bracket is fixed between the two connecting frames, and a backrest cushion is fixed to the front side of the backrest bracket.

[0006] The present invention is further configured such that the hinge frame includes a hinge horizontal plate fixed to the seat cushion mounting platform, a hinge vertical plate perpendicular to the hinge horizontal plate is provided on one side of the hinge horizontal plate, a first hinge hole for matching the hinge shaft is provided on the hinge vertical plate, the connecting frame includes an "L"-shaped connecting baffle, a connecting baffle is formed on one side of the connecting baffle, and a second hinge hole matching the hinge shaft is provided on the connecting baffle, the nylon washer is located between the connecting baffle and the hinge vertical plate, and when the connecting frame rotates rearward to its maximum along the hinge shaft, the bottom of the connecting baffle abuts against the top of the rear end of the hinge horizontal plate.

[0007] The present invention is further configured such that a connecting angle is formed between the connecting baffle and the connecting edge, and the backrest bracket is composed of several backrest uprights and several backrest horizontals, with the backrest uprights fixedly connected to the connecting angle away from the hinge axis by welding.

[0008] The present invention is further configured such that seat cushion notches are formed on both side walls at the rear end of the seat cushion, and the hinge frame is fixed to the seat cushion mounting platform corresponding to the seat cushion notch.

[0009] The present invention is further configured such that both the seat cushion and the backrest cushion are made of self-skinning foam plastic.

[0010] The present invention is further configured such that the base support frame includes two symmetrically arranged support frames, the top and bottom of the two support frames are provided with bending portions for installation, and the bending portions are provided with several reinforcing ribs.

[0011] The outstanding and beneficial technical effects of this utility model compared to the prior art are: 1. The lightweight operator folding chair provided by this utility model adopts a simple hinge structure to realize the unfolding of the backrest. The "L"-shaped connecting frame can achieve positioning by utilizing the simple structural principle of the parts themselves when opened, reducing the use of parts. In addition, the nylon gasket can enhance shock absorption during use and prevent wear of the hinged parts due to vibration.

[0012] 2. This utility model further utilizes the bottom of the connecting flange and the top of the rear end of the hinged cross plate as limiting points. Relying on the structural strength of the components themselves, the structure is simple and easy to operate. At the same time, the replacement cost of the hinged seat is low and it is easy to maintain.

[0013] 3. The backrest bracket provided by this utility model is fixed to the connecting angle by welding at the end, which not only has a good stabilizing effect, but also provides more welding points in the form of an angle, thereby enhancing the strength of the connection structure.

[0014] 4. The present invention further adopts the hinge frame set on the notch of the seat cushion, which makes the two sides of the seat cushion flatter, makes side-by-side installation more convenient, and makes the space planning more reasonable.

[0015] 5. This utility model further uses self-skinning foam plastic as the main material for the seat cushion and backrest, which is soft and comfortable, and easy to clean and maintain. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the structure of this utility model. Figure 2 ; Figure 3 This is an exploded view of the present invention; Figure label: 1-Base support frame; 10-Seat cushion mounting platform; 11-Support upright; 12-Reinforcing rib; 2-Seat cushion; 20-Seat cushion notch; 3-Hinge frame; 30-Hinge shaft; 31-Nylon washer; 32-Hinge horizontal plate; 33-Hinge vertical plate; 34-First hinge hole; 4-Connecting bracket; 40-Connecting flange; 41-Connecting baffle; 42-Second hinge hole; 43-Connecting angle; 5-Backrest support; 50-Backrest upright; 51-Backrest horizontal; 6-Backrest cushion. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1 — Figure 3 : A lightweight operator folding chair includes a base support frame 1, and the top of the base support frame 1 forms a seat cushion mounting platform 10. A seat cushion 2 is disposed on the seat cushion mounting platform 10. Two hinge frames 3 with the same mirror structure are fixed to the seat cushion mounting platform 10 on both sides of the rear end of the seat cushion 2. Each of the two hinge frames 3 is hinged with a connecting frame 4 with the same mirror structure and in an "L" shape through a hinge shaft 30. A nylon washer 31 is sleeved on the hinge shaft 30 and located between the hinge frame 3 and the connecting frame 4. A backrest bracket 5 is fixed between the two connecting frames 4, and a backrest cushion 6 is fixed to the front side of the backrest bracket 5.

[0018] During use, the operator can open the backrest cushion by rotating the connecting bracket 4, which is very convenient; the structure of the seat lock is relatively simple and easy to maintain.

[0019] Preferably, the hinge frame 3 includes a hinge horizontal plate 32 fixed to the seat cushion mounting platform 10. A hinge vertical plate 33 perpendicular to the hinge horizontal plate 32 is provided on one side. A first hinge hole 34 matching the hinge shaft 30 is provided on the hinge vertical plate 33. The connecting frame 4 includes an "L"-shaped connecting flange 40. A connecting baffle 41 is formed on one side of the connecting flange 40. A second hinge hole 42 matching the hinge shaft 30 is provided on the connecting baffle 41. The nylon washer 31 is located between the connecting baffle 41 and the hinge vertical plate 33. When the connecting frame 4 rotates backward along the hinge shaft 30 to its maximum, the bottom of the connecting flange 40 abuts against the top of the rear end of the hinge horizontal plate 32.

[0020] In the above structure, the hinged cross plate 32 is fixed to the seat mounting platform 10 by bolts, achieving a fixing effect. The nylon washer 31 can enhance the damping and shock absorption effect during use, preventing adjacent parts from loosening due to vibration during driving.

[0021] In addition, the robust metal materials used in the hinge and connecting frames ensure that the components remain in good working order even after prolonged use, resulting in a longer service life.

[0022] On the other hand, the hinge frame can be replaced during maintenance. The replacement method is to pull out the hinge shaft and then disassemble the bolts to replace the hinge frame 3.

[0023] Preferably, the connecting baffle 41 and the connecting edge 40 form a connecting angle 43, and the backrest bracket 5 is composed of several backrest uprights 50 and several backrest horizontals 51. The backrest uprights 50 are fixedly connected to the connecting angle 43 away from the hinge axis 30 by welding.

[0024] In the above structure, the backrest upright 50 has more welding contact surface when fixed with the connecting angle 43, thereby enhancing the overall stability.

[0025] Preferably, the two side walls at the rear end of the seat cushion 2 are formed with seat cushion notches 20, and the hinge frame 3 is fixed on the seat cushion mounting platform 10 corresponding to the seat cushion notch 20.

[0026] Furthermore, two seat cushion notches 20 are set at the rear end of the seat cushion 2, which can accommodate two hinge brackets 3 within the seat cushion notches 20. This makes full use of the area that is not frequently used by the seat cushion, making the sides of the seat cushion flatter and the space layout more optimized.

[0027] Preferably, both the seat cushion 2 and the backrest cushion 6 are made of self-skinning foam plastic. This material is lightweight, stain-resistant, corrosion-resistant, and highly convenient.

[0028] Preferably, the base support frame 1 includes two symmetrically arranged support frames 11, and the top and bottom of the two support frames 11 are provided with bending portions for installation, and the bending portions are provided with a plurality of reinforcing ribs 12.

[0029] In the above structure, the bending part facilitates the support and installation of the bottom of the cushion, while the reinforcing rib 12 further enhances the structural strength of the bending part, making it suitable for long-term use.

[0030] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A lightweight operator folding chair, characterized in that, The base support frame (1) is included, and the top of the base support frame (1) forms a seat cushion mounting platform (10). A seat cushion (2) is provided on the seat cushion mounting platform (10). The two sides of the rear end of the seat cushion (2) are provided with hinge frames (3) that are fixed on the seat cushion mounting platform (10) and have the same mirror structure. Both hinge frames (3) are hinged with a connecting frame (4) that has the same mirror structure and is "L" shaped through a hinge shaft (30). A nylon washer (31) is sleeved on the hinge shaft (30) between the hinge frame (3) and the connecting frame (4). A backrest bracket (5) is fixed between the two connecting frames (4), and a backrest cushion (6) is fixed on the front side of the backrest bracket (5).

2. The lightweight operator folding chair according to claim 1, characterized in that, The hinge frame (3) includes a hinge horizontal plate (32) fixed to the seat mounting platform (10). A hinge vertical plate (33) is provided on one side of the hinge horizontal plate (32). A first hinge hole (34) matching the hinge shaft (30) is provided on the hinge vertical plate (33). The connecting frame (4) includes an "L"-shaped connecting flange (40). A connecting baffle (41) is formed on one side of the connecting flange (40). A second hinge hole (42) matching the hinge shaft (30) is provided on the connecting baffle (41). The nylon washer (31) is located between the connecting baffle (41) and the hinge vertical plate (33). When the connecting frame (4) rotates backward along the hinge shaft (30) to the maximum, the bottom of the connecting flange (40) abuts against the top of the rear end of the hinge horizontal plate (32).

3. A lightweight operator folding chair according to claim 2, characterized in that, The connecting baffle (41) and the connecting edge (40) form a connecting angle (43). The backrest bracket (5) is composed of several backrest uprights (50) and several backrest horizontals (51). The backrest uprights (50) are fixedly connected to the connecting angle (43) away from the hinge axis (30) by welding.

4. A lightweight operator folding chair according to claim 1 or 2, characterized in that, The two side walls at the rear end of the cushion (2) are formed with cushion notches (20), and the hinge frame (3) is fixed on the cushion mounting platform (10) corresponding to the cushion notches (20).

5. A lightweight operator folding chair according to claim 1, characterized in that, Both the seat cushion (2) and the backrest cushion (6) are made of self-skinning foam plastic.

6. A lightweight operator folding chair according to claim 1, characterized in that, The base support frame (1) includes two symmetrically arranged support frames (11). The top and bottom of the two support frames (11) are provided with bending parts for installation, and the bending parts are provided with several reinforcing ribs (12).

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