CN204218375U - A kind of folding seat - Google Patents

Abstract

The utility model relates to the field of furniture, in particular to a folding chair, comprising a front outrigger and a rear outrigger, the front outrigger and the back outrigger are hinged together and intersect to form an X-shaped structure; The upper end forms a seat surface; the back of the seat surface is hinged with a swing rod, and the lower end of the front leg is provided with an adjustment slot, and the lower end of the swing rod is engaged with the adjustment slot. According to the above structure, the utility model proposes a folding chair which has the characteristics of simple structure, stability, and convenient use and portability.

Description

a folding chair

technical field

The utility model relates to the field of furniture, in particular to a folding chair.

Background technique

Compared with traditional chairs, folding chairs can be half-sitting and half-lying, so that people can relax, relieve fatigue and release pressure. At the same time, folding chairs are convenient and practical, flexible to fold, small in space and easy to carry, so they are widely used in homes. Rapid resettlement of victims in life, travel and leisure, hospital escort and natural disasters.

Most of the existing folding chairs realize the adjustment of the backrest by setting the adjusting and fixing device on the backrest. Just because the device for adjusting and fixing is arranged on the back of the backrest, the center of gravity of the human body is not on the backrest when lying on the reclining chair, and the folding chair corresponds to Because there is no structure to directly support the center of gravity, the folding chair shakes. In order to overcome this problem, some existing folding chairs set the front legs, rear legs, backrest and seat separately and connect them, so that the structure of the reclining chair become complicated and inconvenient to use.

Utility model content

The purpose of the utility model is to propose a folding chair which is simple in structure, stable and convenient to use and carry.

For this purpose, the utility model adopts the following technical solutions:

A folding chair, comprising a front leg and a rear leg, the front leg and the rear leg are hinged together and intersect to form an X-shaped structure; the upper end of the rear leg forms a seat surface; the seat surface A swing rod is hinged on the back, and an adjustment slot is provided at the lower end of the front leg, and the lower end of the swing rod engages with the adjustment slot.

When the folding chair is unfolded and placed on the ground, the swing rod is stuck in the adjustment slot, and the swing rod forms a stable triangular structure with the lower ends of the front legs and the seat surface. The lower end of the front leg and the lower end of the rear leg are in contact with the ground, so that the folding chair can be stably placed on the ground; when using the folding chair, first unfold the folding chair, and then Adjust the matching position of the swing rod and the adjustment card slot in the sitting posture, and finally put the folding chair on the plane; when the user sits on the folding chair, the part below the user's knee is on the folding It is outside the seat surface of the chair, so that the user's center of gravity is located on the seat surface, because the locking bar is located at the bottom of the seat surface, and it can be better after being engaged with the adjustment card slot. The seat surface is supported so that the structure of the folding chair is stable and does not shake.

The seat surface at the upper end of the rear leg is provided with a downward bending.

According to the skeletal muscle structure of the thigh of the human body, the seat surface is bent downward, so that the front half of the seat surface is close to the level, and the second half is concave. When a person sits on the seat surface, the thigh and the buttocks are completely fitted with the seat surface, making it more comfortable to use.

The lower end of the swing rod is fixed with a locking bar, and the two ends of the locking bar are engaged with the adjusting slot.

The clamping bar is connected to the lower end of the swing bar, and the maximum adjustment range can be obtained by rotating the swing bar at a certain angle, thus making the adjustment process of the swing bar and the adjustment slot more convenient; The two ends of the clamping cross bar are engaged with the adjustment slot, which reduces the width of the adjustment slot on the one hand and saves material; on the other hand, simplifies the fixing method of the adjustment slot on the front leg, The structure of the folding chair is simpler while ensuring the stability of the structure.

More preferably, the swing rod is U-shaped, the upper end is hinged on the seat surface, and the rest is located below the seat surface, and the distance between the left and right sides of the swing rod gradually increases from the lower end to the upper end in the horizontal direction, so that The two sides of the swing rod are inclined to support the skeletons on both sides of the seat surface. When a person sits on the seat surface, the seat cushion on the seat surface will sag towards the middle of the seat surface, thus giving the two sides The component force of the skeleton towards the middle and the bottom, the direction of the resultant force of these two components is inclined downward, so that the skeleton on both sides of the seat surface tends to close obliquely downward, and the two sides of the swing rod just tilt upward to support the The skeletons on both sides of the seat surface counteract the aforementioned obliquely downward force, thereby making the structure of the folding chair more stable.

The upper ends of the front legs are extended to form a backrest.

The lower end of the front leg forms a stable triangle with the rear leg and the swing rod, so that the front leg is fixed relative to the folding chair, and because the backrest is an extension of the front leg Part, that is, the backrest is integrated with the front leg, and when the lower end of the front leg is fixed, the backrest is also fixed, so that the structure of the entire folding chair is simpler, and the fixing method is also becomes easier.

The backrest is provided with an upward upward bend.

The skeletal structure of the human body is very special. When the user sits on the folding chair, the buttocks sit on the seat surface, and the back and head lean against the backrest. The user's head is held forward relative to the back, so that the user is more comfortable when using the folding chair again.

The distance between the bending point of the lower bending and the end point of the rear leg is 20-30 cm, the lower bending angle is 120-150 degrees, and the length of the seat surface formed is 40-50 cm.

The upper end of the rear outrigger is bent to form a seat surface for the user to sit on. At the same time, the seat surface and the rear outrigger are integrated to make the fixing method of the seat surface more convenient; In order for the folding chair to achieve the best comfort, it is necessary to allow the user to use the folding chair with the part below the thigh not on the seat surface, so when designing the seat surface, there are special requirements for its size, according to the test , it is obtained that the distance between the bending point of the lower bending and the end point of the rear leg is 20-30cm, the lower bending angle is 120-150 degrees, and the seat length formed is 40-50cm, which is the most comfortable Size range.

The front outrigger is longer than the back outrigger, and a quarter of the lower end of the front outrigger is hinged with a half of the rear outrigger.

The advantage of the folding chair is that it is small in size after being folded, but it must have a large enough use surface and a stable structure after unfolding; in order to achieve this effect, the near lower end of the front leg is divided into quarters One of them is connected with one-half of the rear leg, so that the center of gravity of the folding chair will be lowered, so that the unfolded structure is more stable, and the use surface of the unfolded folding chair is large enough, making it easier to use. comfortable.

The number of the adjustment slots is more than two.

Different people prefer different sitting postures when using folding chairs, so the clamping bar can be adjusted to engage with the positioning slots at different positions, thereby changing the angle between the unfolded and fixed seat surface and the backrest, so that the The use of folding chairs is more diverse.

Anti-slip parts are provided at the ends of the front legs and the rear legs that are in contact with the ground.

Because the front leg and the rear leg are part of the entire framework of the folding chair, they must be made of high-strength materials, such as metal, solid wood, etc., in order to place this material in contact with the ground and slip An anti-skid piece is added on the contact surface, so that the folding chair can be placed more stably.

The backrest and the seat surface are covered with a seat cushion; the front edge of the seat surface cushion has soft filling material inside, and the upper end of the backrest is provided with a pillow.

The skeleton structure of the folding chair only has front outriggers, rear outriggers and swing rods. There is no additional load-bearing structure between the backrest and the seat surface, but a chair cushion of soft material is set, and the chair cushion is covered by the On the seat surface and the backrest, the user sits and leans on the chair cushion, making the use of the folding chair more comfortable; when the user uses the folding chair, the front edge of the seat surface is the user's The upper end of the backrest is the back of the head or the neck of the user. These positions are relatively fragile and easy to touch. The chair cushions at the corresponding positions are filled with soft filling materials or pillows, thereby well protecting the user's body. Safety while increasing the comfort of the folding chair.

Description of drawings

Fig. 1 is a structural representation when an embodiment of the present invention is deployed;

Fig. 2 is a structural schematic view of an embodiment of the utility model when it is folded.

Among them: front outrigger 100, rear outrigger 200, seat surface 300, swing rod 400, pillow 500, filling material 600, backrest 102, clamp cross bar 301, adjustment card slot 101, upper bend 112, lower bend 311 .

Detailed ways

The technical scheme of the utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.

As shown in Figures 1 and 2, a folding chair includes a front leg 100 and a rear leg 200, the front leg 100 and the rear leg 200 are made of a hollow metal tube, and the front leg Nearly a quarter of the lower end of the 100 and a half of the rear leg 200 are hinged together and intersect in an X shape. The upper end of the rear leg 200 is provided with a downward lower bend 311, which bends After that, the rear leg 200 forms the seat surface 300, the distance between the bending point of the upper bend 311 and the end point of the rear leg 200 is 25 cm, and the angle of the upper bend 311 is 130 degrees. The length of the seat surface formed is 45cm; the back of the seat surface 300 is hinged with a swing rod 400, the swing rod 400 is U-shaped, the upper end is hinged on the seat surface 300, and the rest is located below the seat surface 300. The swing rod 400 The distance between the left and right sides gradually increases from the lower end to the upper end in the horizontal direction, so that the two ends of the swing rod 400 obliquely support the skeleton on both sides of the seat surface 300; the lower end of the swing rod 400 is fixed with a clamping cross bar 301, the two ends of the clamping cross bar 301 protrude, and the lower end of the front leg 100 is provided with four adjustment slots 101, and the two ends of the clamping cross bar 301 are engaged in the second described card slot. The upper ends of the front legs 100 are extended to form a backrest 102 . The backrest 102 is provided with an upward upward bend, and the bending angle is 160 degrees; the seat 300 surface and the backrest 102 are covered with a chair cushion, and the chair cushion is made of Oxford cloth; The upper end of the backrest 102 is provided with a pillow 500, and the front edge of the seat cushion of the seat surface 300 is provided with a filling material 600, and the pillow and the filling material are made of sponge.

How to use the folding chair: as shown in Figure 2, it is the folded structure of this embodiment. When in use, hold the seat surface 300 and the backrest 102 with your hands and separate them. According to personal usage habits, Swing the swing bar 400 to drive the clamping cross bar 301 to engage with the adjustment slots 101 at different positions. The clamping cross bar 301 in this embodiment is selectively engaged with the second adjustment slot 101 In order to unfold and fix the entire folding chair, as shown in Figure 1 after unfolding; folding the folding chair only needs to be performed in reverse order according to the unfolding steps; of course, according to the usage habits of each person, the method of using this folding chair Not unique.

The technical principles of the present utility model have been described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the utility model, and cannot be construed as limiting the protection scope of the utility model in any way. Based on the explanations herein, those skilled in the art can think of other specific implementations of the present utility model without creative work, and these forms will all fall within the protection scope of the present utility model.

Claims (10)

1. a folding seat, comprises front leg strut and rear support leg, it is characterized in that, described front leg strut and described rear support leg hinged and intersect in X-shaped structure; The upper end of described rear support leg forms seat surface; The described seat surface back side is hinged with fork, and described front leg strut lower end is provided with adjustment draw-in groove, and described fork lower end engages with described adjustment draw-in groove.

2. folding seat according to claim 1, is characterized in that, the described seat surface of described rear support leg upper end is provided with downward lower bending.

3. folding seat according to claim 1, is characterized in that, described fork lower end is fixed with screens cross bar, and the two ends of described screens cross bar engage with described adjustment draw-in groove.

4. folding seat according to claim 1, is characterized in that, described front leg strut upper end extends and forms backrest.

5. folding seat according to claim 4, is characterized in that, described backrest is provided with upper bending upwards.

6. folding seat according to claim 2, is characterized in that, the inflection point of described lower bending and the distance of described rear support leg end points are 20-30cm, and described lower bending angle is 120-150 degree, and the length of the described seat surface of formation is 40-50cm.

7. folding seat according to claim 1, is characterized in that, described front leg strut is longer than described rear support leg, and 1/2nd places of described front leg strut nearly lower end 1/4th place and described rear support leg are hinged.

8. folding seat according to claim 1, is characterized in that, the quantity of described adjustment draw-in groove is two or more.

9. folding seat according to claim 1, is characterized in that: described front leg strut and described rear support leg and earth surface end are provided with Non-slip material.

10. folding seat according to claim 4, is characterized in that: described backrest and seat surface cover have chair cushion; There is soft packing material described inside, seat surface chair cushion front edge place, and described backrest upper end is provided with pillow.