Improved mortise and tenon structure seat

Abstract

The utility model discloses a kind of improved mortise and tenon structure seats, including two parallelly arranged front chair legs, the rear side of front chair leg is provided with two parallelly arranged rear chair legs, the inside of front chair leg and rear chair leg is all provided with mortise, the inside of front chair leg and rear chair leg is all provided with horizontal rod, the left and right sides of horizontal rod are all connected with back-shaped tenon, and the horizontal rod is connected with mortise by back-shaped tenon.The utility model first makes horizontal rod respectively into rear chair leg and front chair leg, then makes longitudinal rod respectively into rear chair leg and front chair leg, and makes T-shaped tenon penetrate back-shaped tenon, then seat board is placed on the top of horizontal rod and longitudinal rod, so that rectangular wood nail is inserted into rectangular slot, at this time, seat can be assembled, when seat shakes, back-shaped tenon and T-shaped tenon are mutually matched and locked, to achieve the effect of good structural stability.

Description

Technical Field

[0001] This utility model relates to the field of mortise and tenon structure seat technology, specifically an improved mortise and tenon structure seat. Background Technology

[0002] Mortise and tenon joint chairs are a typical example of traditional furniture. They are connected by the interlocking of the wood, with the protruding tenons fitting into the recessed mortises. They can be assembled securely without metal nails or adhesives. They can be flexibly adapted to curved or right-angled parts in various forms such as dovetail tenons and wedge tenons. They ensure load-bearing strength while showcasing the natural toughness of wood. Their structure is understated and rigorous, combining environmental protection and durability. They are the embodiment of the wisdom of craftsmen.

[0003] During daily rest, wooden chairs are needed. Most wooden chairs on the market are mortise and tenon structure chairs. The mortise and tenon structure of existing wooden chairs has poor stability. At present, the mortise and tenon structure is mostly a tenon and mortise hole connected separately, and there is a lack of connection between multiple tenons. When the mortise and tenon structure is subjected to vibration or torsion for a long time, it will loosen due to wood fatigue, which will cause the wooden chair to wobble. Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide an improved mortise and tenon structure seat, which has the advantage of good stability. It solves the problem of poor stability of the mortise and tenon structure of existing wooden seats. Currently, most mortise and tenon structures are made by individually connecting the tenon and the mortise, and there is a lack of connection between multiple tenons. When the mortise and tenon structure is subjected to vibration or torsion for a long time, it will loosen due to wood fatigue, which will cause the wooden seat to sway.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an improved mortise and tenon structure seat, comprising two parallel front chair legs, two parallel rear chair legs on the rear side of the front chair legs, mortises being provided inside both the front and rear chair legs, transverse bars being provided on the inner sides of both the front and rear chair legs, and U-shaped tenons connecting the left and right sides of the transverse bars, the transverse bars being connected to the mortises via the U-shaped tenons, a longitudinal bar being provided in the gap between the front and rear chair legs, T-shaped tenons connecting the front and rear sides of the longitudinal bar, the longitudinal bar being connected to the mortises via the T-shaped tenons, a seat plate being provided at the top of the transverse bars and at the top of the longitudinal bars, rectangular grooves being provided at the top of the transverse bars, the longitudinal bars, and the seat plate, rectangular wooden nails being provided inside the rectangular grooves, the seat plate being connected to the transverse bars and the longitudinal bars via the rectangular wooden nails.

[0006] As a preferred embodiment of this utility model, a slot is provided on the upper inner side of the rear seat leg, and the rear seat leg is connected to the backrest plate through the slot.

[0007] As a preferred embodiment of this utility model, the back panel has a lifting hole on its front side.

[0008] As a preferred embodiment of this utility model, the mortise is T-shaped, and the front side of the front chair leg and the rear side of the rear chair leg are provided with rectangular holes that cooperate with the T-shaped tenon.

[0009] As a preferred embodiment of this invention, both the transverse and longitudinal bars are rectangular wooden posts of the same thickness and length.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This utility model first inserts the transverse rods into the rear and front seat legs respectively, then inserts the longitudinal rods into the rear and front seat legs respectively, and inserts the T-shaped tenon through the U-shaped tenon. Then, the seat plate is placed on top of the transverse and longitudinal rods, and the rectangular wooden nails are inserted into the rectangular grooves. At this point, the seat can be assembled. When the seat shakes, the U-shaped tenon and the T-shaped tenon cooperate to lock each other, thereby achieving a good structural stability.

[0012] 2. This utility model, by setting a slot and a backrest, can support the back of the user when the user sits on the seat, making it more convenient for the user. Attached Figure Description

[0013] Figure 1 This is a front view of the seat structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure when the front chair leg and the transverse bar of this utility model are spliced ​​together;

[0015] Figure 3 This is a schematic diagram of the structure when the rear chair leg and the transverse bar of this utility model are spliced ​​together;

[0016] Figure 4 This is a schematic diagram of the structure of the longitudinal rod of this utility model when it is spliced ​​with the front and rear chair legs;

[0017] Figure 5 This is a schematic diagram of the structure of the base plate of this utility model during installation.

[0018] In the diagram: 1. Front chair leg; 2. Rear chair leg; 3. Mortise and tenon; 4. Horizontal bar; 5. U-shaped tenon; 6. Vertical bar; 7. T-shaped tenon; 8. Seat plate; 9. Rectangular groove; 10. Rectangular wooden nail; 11. Slot; 12. Backrest panel; 13. Lifting hole. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1 to 5 As shown, this utility model provides an improved mortise and tenon structure seat, including two parallel front chair legs 1, and two parallel rear chair legs 2. Both the front chair legs 1 and the rear chair legs 2 have mortise grooves 3 inside. Both the front chair legs 1 and the rear chair legs 2 have transverse rods 4 inside. The left and right sides of the transverse rods 4 are connected to tenons 5 in the shape of a square. The transverse rods 4 are connected to the mortise grooves 3 through the tenons 5. A longitudinal rod 6 is provided in the gap between the front chair legs 1 and the rear chair legs 2. The front and rear sides of the longitudinal rod 6 are connected to tenons 7 in the shape of a square. The longitudinal rod 6 is connected to the mortise grooves 3 through the tenons 7. A seat plate 8 is provided at the top of the transverse rods 4 and at the top of the longitudinal rods 6. The tops of the transverse rods 4, the longitudinal rods 6, and the seat plate 8 all have rectangular grooves 9. Rectangular wooden nails 10 are provided inside the rectangular grooves 9. The seat plate 8 is connected to the transverse rods 4 and the longitudinal rods 6 through the rectangular wooden nails 10.

[0021] refer to Figure 3 A slot 11 is provided on the upper inner side of the rear seat leg 2, and the backrest plate 12 is connected to the rear seat leg 2 through the slot 11.

[0022] As a technical optimization of this utility model, by setting the card slot 11 and the backrest 12, the user's back can be supported when sitting in the seat, which makes it more convenient for the user.

[0023] refer to Figure 3 A lifting hole 13 is provided on the front side of the back panel 12.

[0024] As a technical optimization of this utility model, by setting the lifting hole 13, the contact area between the user's hands and the seat can be increased, making it easier for the user to move the seat.

[0025] refer to Figure 2 and Figure 3 The mortise 3 is T-shaped, and rectangular holes that cooperate with the T-shaped tenon 7 are provided on the front side of the front chair leg 1 and the rear side of the rear chair leg 2.

[0026] As a technical optimization of this utility model, by setting a T-shaped mortise 3 and a rectangular hole structure, the T-shaped tenon 7 can be limited when the tenon 5 and the T-shaped tenon 7 are connected to each other, making the T-shaped tenon 7 more stable.

[0027] refer to Figure 4 Both the horizontal bar 4 and the vertical bar 6 are rectangular wooden posts of the same thickness and length.

[0028] As a technical optimization of this utility model, by setting the transverse rod 4 and the longitudinal rod 6 with the same thickness and length, the assembly tolerance between the transverse rod 4 and the longitudinal rod 6 can be reduced, enabling users to assemble the transverse rod 4 and the longitudinal rod 6 in a modular manner.

[0029] The working principle and usage process of this utility model are as follows: During assembly, firstly, align the mortises 3 on the inner sides of the front chair leg 1 and the rear chair leg 2 with the tenon blocks 5 on the transverse bar 4. Move the front chair leg 1 and the rear chair leg 2 inward, so that the tenon blocks 5 on the forward transverse bar 4 engage with the mortises 3 on the inner side of the front chair leg 1, and so that the tenon blocks 5 on the rear transverse bar 4 engage with the mortises 3 on the inner side of the rear chair leg 2. At the same time, engage the backrest panel 12 into the slot 11. Next, engage the T-shaped tenon blocks 7 on the front side of the longitudinal bar 6 into the mortises 3 on the rear side of the front chair leg 1. The front end of the T-shaped tenon blocks 7 passes through the tenon blocks 5 and engages with the rectangular hole structure on the front chair leg 1. Then, move the longitudinal bar 6 backward... The T-shaped tenon 7 on the side is inserted into the mortise 3 on the front side of the rear seat leg 2, so that the rear end of the T-shaped tenon 7 passes through the U-shaped tenon 5 and is inserted into the rectangular hole structure on the rear seat leg 2. Then, the seat plate 8 is placed on top of the upper transverse bar 4 and longitudinal bar 6, and the rectangular groove 9 on the seat plate 8 is aligned with the rectangular groove 9 on the transverse bar 4 and longitudinal bar 6. Finally, the rectangular wooden nail 10 is inserted into the rectangular groove 9. At this point, the seat can be assembled, and the U-shaped tenon 5 and the T-shaped tenon 7 are mortised and tenoned together. When the seat shakes, the U-shaped tenon 5 and the T-shaped tenon 7 cooperate and lock together to achieve a good structural stability. It is recommended to check the mortise and tenon fit every six months.

[0030] In summary, this improved mortise and tenon structure chair, by incorporating front leg 1, rear leg 2, mortise groove 3, transverse bar 4, U-shaped tenon block 5, longitudinal bar 6, T-shaped tenon block 7, seat plate 8, rectangular groove 9, and rectangular wooden nail 10, solves the problem of poor stability in existing wooden chair mortise and tenon structures. Currently, most mortise and tenon structures involve individual tenon-mortise connections, lacking interrelationships between multiple tenons. Under long-term vibration or torsion, the mortise and tenon structure can loosen due to wood fatigue, leading to the wobbling of the wooden chair.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

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

Claims

1. A modified mortise and tenon structure seat, comprising two parallel front chair legs (1), characterized in that: Two parallel rear chair legs (2) are provided on the rear side of the front chair leg (1). Both the front chair leg (1) and the rear chair leg (2) have mortises (3) inside. A transverse bar (4) is provided on the inner side of both the front chair leg (1) and the rear chair leg (2). A U-shaped tenon (5) is connected to both sides of the transverse bar (4). The transverse bar (4) is connected to the mortises (3) through the U-shaped tenon (5). A longitudinal bar (6) is provided in the gap between the front chair leg (1) and the rear chair leg (2). T-shaped tenons (7) are connected to both the front and rear sides of the rod (6). The longitudinal rod (6) is connected to the mortise (3) through the T-shaped tenons (7). A seat plate (8) is provided at the top of the transverse rod (4) and at the top of the longitudinal rod (6). A rectangular groove (9) is provided at the top of the transverse rod (4), the longitudinal rod (6) and the seat plate (8). A rectangular wooden nail (10) is provided inside the rectangular groove (9). The seat plate (8) is connected to the transverse rod (4) and the longitudinal rod (6) through the rectangular wooden nail (10).

2. The improved mortise and tenon structure seat according to claim 1, characterized in that: A slot (11) is provided on the upper inner side of the rear seat leg (2), and the backrest plate (12) is connected to the rear seat leg (2) through the slot (11).

3. The improved mortise and tenon structure seat according to claim 2, characterized in that: The back panel (12) has a lifting hole (13) on the front side.

4. The improved mortise and tenon structure seat according to claim 1, characterized in that: The mortise (3) is T-shaped, and the front side of the front chair leg (1) and the rear side of the rear chair leg (2) are provided with rectangular holes that cooperate with the T-shaped tenon (7).

5. A modified mortise and tenon structure seat according to claim 1, characterized in that: The transverse bar (4) and the longitudinal bar (6) are both rectangular wooden posts of the same thickness and length.

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