Seat structure with front-back adjusting and overturning functions

Abstract

The utility model discloses a seat structure with a front-back adjusting and overturning function, and relates to the technical field of tricycle seats. Comprising a cushion, a fixing frame is hinged to the bottom of the cushion through a hinge, and a locking piece locked with one end of the fixing frame through a butterfly bolt is further arranged at the bottom of the cushion; a sliding block is arranged at the bottom of the fixing frame, a sliding rail is movably arranged outside the sliding block in a sleeving mode, an adjusting block is arranged on one side of the sliding rail, an adjusting rod used for locking the relative position of the sliding block and the sliding rail is movably arranged in the adjusting block in a sleeving mode, and a handrail rod is arranged in the backrest. The seat cushion can be overturned by rotating the butterfly bolt to be separated from the interior of the fixing nut, the arrangement of a storage space below the seat cushion is facilitated through the overturning design of the overturning seat cushion, the seat cushion can be moved by pulling the adjusting rod to adjust the front-back position, the position of the seat cushion can be locked by loosening the adjusting rod, the operation mode is simple and rapid, the structure is simple and compact, and the practicability is high. The economic benefit is met and the application prospect is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of tricycle seats, in particular to a seat structure with front-back adjustment and flipping functions. Background Art

[0002] An electric tricycle is a three-wheel transport vehicle powered by a battery and driven by a motor for hauling goods or people. The electric tricycle uses a tubular large-capacity battery with left and right liners, deep discharge, and traction type, which can meet the requirements of continuous discharge for long-term work. The battery can be normally used for two years without reducing its capacity.

[0003] At present, the seat structure of tricycles can only be adjusted back and forth, and the adjustment method is complex. The seat cushion of the seat cannot be flipped, and the use effect is not ideal. Summary of the Utility Model

[0004] The utility model provides a seat structure with front-back adjustment and flipping functions to solve the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical solution: A seat structure with front-back adjustment and flipping functions, including a seat cushion, the bottom of the seat cushion is hinged to a fixed frame through a hinge, and a locking piece is also arranged at the bottom of the seat cushion and locked to one end of the fixed frame through a wing bolt;

[0006] A sliding block is arranged at the bottom of the fixed frame, a sliding rail is movably sleeved outside the sliding block, an adjusting block is arranged on one side of the sliding rail, and an adjusting rod for locking the relative positions of the sliding block and the sliding rail is movably sleeved inside the adjusting block.

[0007] Further, it also includes a backrest, an armrest rod is arranged inside the backrest, and both ends of the armrest rod extend outside the backrest and are fixedly connected to both sides of the fixed frame.

[0008] Further, a fixed nut is fixedly arranged inside one side of the fixed frame.

[0009] Further, the wing bolt is threadedly sleeved inside the locking piece through a nut insert, and one end of the wing bolt is screwed into the inside of the fixed nut.

[0010] Further, one end of the adjusting rod extends below one side of the seat cushion and is bent into an L shape.

[0011] Further, an avoidance groove and a positioning piece are arranged on a section of the adjusting rod located inside the adjusting block, and the avoidance groove and the positioning piece are respectively located on both sides of the adjusting rod.

[0012] Further, the number of both the sliding rails and the sliding blocks is at least two.

[0013] Further, the adjusting block is arranged on one side of one of the slide rails, and a tooth groove is arranged on one side of one of the sliders.

[0014] Further, a tooth block whose one end meshes with the tooth groove is movably arranged inside the adjusting block through a first spring, and the other end of the tooth block is located on one side of the avoidance groove and abuts against one side of the adjusting rod.

[0015] Further, a second spring is also arranged inside the adjusting block and is located on one side of the positioning piece.

[0016] Compared with the prior art, the present utility model provides a seat structure with a front-back adjustment and flipping function, and has the following beneficial effects:

[0017] For the seat structure with a front-back adjustment and flipping function, by rotating the wing bolt out of the inside of the fixing nut, the seat cushion can be flipped. The design of the flippable seat cushion facilitates the setting of a storage space under the seat cushion. By pulling the adjusting rod, the seat cushion can be moved for front-back position adjustment, and by releasing the adjusting rod, the position of the seat cushion can be locked. The operation method is simple and fast, the structure is concise and compact, which meets the economic benefits and has a broad application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present utility model;

[0019] Figure 2 is a bottom view of the structure of the adjusting block of the present utility model;

[0020] Figure 3 is a side sectional view of the seat cushion structure of the present utility model;

[0021] Figure 4 is a side sectional view of the wing bolt structure of the present utility model;

[0022] Figure 5 is a bottom sectional view of the structure of the adjusting block of the present utility model.

[0023] In the figure: 1. Seat cushion; 11. Locking piece; 12. Wing bolt; 13. Hinge; 2. Backrest; 21. Armrest rod; 3. Fixed frame; 31. Fixed nut; 32. Slider; 4. Slide rail; 5. Adjusting rod; 51. Avoidance groove; 52. Positioning piece; 6. Adjusting block; 61. First spring; 62. Tooth block; 63. Second spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1-5 , the present invention discloses a seat structure with front-back adjustment and flipping functions, including a seat cushion 1. The bottom of the seat cushion 1 is hinged to a fixed frame 3 through a hinge 13. A locking piece 11 is also provided at the bottom of the seat cushion 1 and is locked to one end of the fixed frame 3 through a wing bolt 12.

[0026] A slider 32 is provided at the bottom of the fixed frame 3. A slide rail 4 is movably sleeved outside the slider 32. An adjustment block 6 is provided on one side of the slide rail 4. An adjustment rod 5 for locking the relative positions of the slider 32 and the slide rail 4 is movably sleeved inside the adjustment block 6.

[0027] Specifically, it further includes a backrest 2. An armrest rod 21 is provided inside the backrest 2. Both ends of the armrest rod 21 extend outside the backrest 2 and are fixedly connected to both sides of the fixed frame 3. The armrest rod 21 ensures the stability of the backrest 2 and can limit the user on both sides at the same time, ensuring safety during riding.

[0028] Specifically, a fixed nut 31 is fixedly provided inside one side of the fixed frame 3. The wing bolt 12 is threadedly sleeved inside the locking piece 11 through a nut insert. One end of the wing bolt 12 is screwed into the inside of the fixed nut 31. When flipping the seat cushion 1, rotate the wing bolt 12 to disengage from the inside of the fixed nut 31, and then the seat cushion 1 can be flipped. The flip design of the seat cushion 1 facilitates the setting of a storage space under the seat cushion 1.

[0029] Specifically, one end of the adjustment rod 5 extends below one side of the seat cushion 1 and is bent into an L shape. The L-shaped design of one end of the adjustment rod 5 facilitates the user to pull the adjustment rod 5.

[0030] Specifically, the adjusting rod 5 is provided with an avoidance groove 51 and a positioning piece 52 on a section located inside the adjusting block 6, and the avoidance groove 51 and the positioning piece 52 are respectively located on both sides of the adjusting rod 5, and the number of the slide rails 4 and the sliders 32 is at least two, and the adjusting block 6 is arranged on one side of one of the slide rails 4, and one side of the sliders 32 is provided with a tooth groove, and the inside of the adjusting block 6 is provided with a tooth block 62 with one end meshed with the tooth groove through a spring 1 61, and the other end of the tooth block 62 is located on one side of the avoidance groove 51 and conflicts with one side of the adjusting rod 5, and the inside of the adjusting block 6 is also provided with a spring 2 63 located on one side of the positioning piece 52, see Figure 1 , Figure 2 as well as Figure 5 , fix the slide rail 4 in the cab of the tricycle. When the front and rear position of the seat cushion 1 needs to be adjusted, pull the adjusting rod 5, the adjusting rod 5 drives the positioning piece 52 to compress the spring 2 63, and at the same time, the adjusting rod 5 drives the avoidance groove 51 to be opposite to one end of the tooth block 62, so that the tooth block 62 can retreat. At this time, the movable seat cushion 1 drives the slider 32 to move inside the slide rail 4 through the fixed frame 3. When the slider 32 moves, it drives the tooth groove to engage with the tooth block 62, and the tooth block 62 retreats and compresses the spring 1 61 for avoidance. After the adjustment is completed, release the adjusting rod 5, the spring 2 63 rebounds and contacts the positioning piece 52 to drive the adjusting rod 5 to reset, and the adjusting rod 5 drives the avoidance groove 51 to stagger with the tooth block 62, so that one side of the adjusting rod 5 contacts the tooth block 62, restricting the retreat of the tooth block 62, thereby realizing the locking of the relative position of the slider 32 and the slide rail 4.

[0031] To sum up, in the seat structure with the function of front and rear adjustment and flipping, the seat cushion 1 can be flipped by rotating the butterfly bolt 12 to disengage the fixing nut 31. The flip design of the seat cushion 1 facilitates the setting of a storage space under the seat cushion 1. The seat cushion 1 can be moved for front and rear position adjustment by pulling the adjustment rod 5. The position of the seat cushion 1 can be locked by loosening the adjustment rod 5. The operation is simple and fast, the structure is simple and compact, it meets economic benefits, and has broad application prospects.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A seat structure with front-back adjustment and flipping functions, comprising a seat cushion (1), characterized in that: The bottom of the seat cushion (1) is hinged with a fixing frame (3) through a hinge (13), and a locking piece (11) is also arranged at the bottom of the seat cushion (1) and locked with one end of the fixing frame (3) through a wing bolt (12). A sliding block (32) is arranged at the bottom of the fixing frame (3), a sliding rail (4) is movably sleeved outside the sliding block (32), an adjusting block (6) is arranged on one side of the sliding rail (4), and an adjusting rod (5) for locking the relative positions of the sliding block (32) and the sliding rail (4) is movably sleeved inside the adjusting block (6).

2. The seat structure with front-back adjustment and flipping function according to claim 1, characterized in that: It further includes a backrest (2), an armrest rod (21) is arranged inside the backrest (2), and both ends of the armrest rod (21) extend outside the backrest (2) and are fixedly connected to both sides of the fixing frame (3).

3. A seat structure with a front-back adjustment and flipping function according to claim 1, characterized in that: A fixing nut (31) is fixedly arranged inside one side of the fixing frame (3).

4. A seat structure with a front-back adjustment and flipping function according to claim 1, characterized in that: The wing bolt (12) is threadedly sleeved inside the locking piece (11) through a nut insert, and one end of the wing bolt (12) is screwed into the inside of the fixing nut (31).

5. A seat structure with a front-back adjustment and flipping function according to claim 1, characterized in that: One end of the adjusting rod (5) extends below one side of the seat cushion (1) and is bent into an L shape.

6. The seat structure with front-back adjustment and flipping function according to claim 1, characterized in that: An avoidance groove (51) and a positioning piece (52) are arranged on a section of the adjusting rod (5) located inside the adjusting block (6), and the avoidance groove (51) and the positioning piece (52) are respectively located on both sides of the adjusting rod (5).

7. A seat structure with a front-back adjustment and flipping function according to claim 1, characterized in that: The number of both the sliding rails (4) and the sliding blocks (32) is at least two.

8. A seat structure with a front-back adjustment and flipping function according to claim 1, characterized in that: The adjusting block (6) is arranged on one side of one of the sliding rails (4), and a tooth groove is arranged on one side of one of the sliding blocks (32).

9. A seat structure with a front-back adjustment and flipping function according to claim 1, characterized in that: A tooth block (62) whose one end meshes with the tooth groove is movably arranged inside the adjusting block (6) through a first spring (61), and the other end of the tooth block (62) is located on one side of the avoidance groove (51) and abuts against one side of the adjusting rod (5).

10. A seat structure with a front-back adjustment and flipping function according to claim 1, characterized in that: A second spring (63) is further arranged inside the adjusting block (6) on one side of the positioning piece (52).

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