Firmly combined chair

Abstract

A firmly-combined chair comprises a chair back, a first mortise groove is formed in one side of the chair back, a second mortise groove is formed in the other side of the chair back, a fifth tenon is fixedly connected to one end of the lower portion of the chair back, a first tenon is connected to one side of the chair back in a mortise and tenon mode, and a first supporting handrail is fixedly connected to the bottom of the first tenon. The chair is fixedly connected through cooperation of the first mortise groove, the second mortise groove, the first tenon, the second tenon, the third tenon, the fourth tenon, the third mortise groove and the fifth tenon, through close cooperation of the tenons and the mortise grooves, the larger contact area and contact points are provided, the stability and durability of connection are improved, all components of the chair are connected together more closely, and the service life of the chair is prolonged. A firm structure is formed, potential safety hazards caused by looseness of the chair are avoided, all components of the chair are relatively easy to disassemble and assemble and convenient to carry and store, damaged parts are convenient to maintain and replace, glue or other chemical adhesives are not needed in the tenon-and-mortise connection mode, and harmful substances are prevented from being used and released.

Description

Technical Field

[0001] The utility model relates to the technical field of chairs, in particular to a combined and firm chair. Background Art

[0002] A chair is a piece of furniture used for sitting and supporting the body. It is widely used in various fields such as home, office, business and public places. Different types of chairs have different designs and functions. Each type of chair has its own unique design and use. The materials of chairs can include wood, metal, plastic, fabric, etc. to adapt to different needs and styles. Whether it is used for comfortable rest, work, dining or other activities, chairs are one of the indispensable furniture in our lives.

[0003] When connecting chair components, existing chairs usually use fixings or glue bonding to connect the chairs. Long-term use and frequent loads will cause the fixings to loosen, and there is a risk of loosening or falling off, which will affect the stability and safety of the chair. The glue bonding method may also result in the glue not being firmly bonded. Chairs connected with fixings are more difficult to repair or replace components. If a chair bonded with glue needs to replace components, it is usually necessary to destroy the original bonding part and then re-glue it, which is not convenient for daily use. The seat surface used in existing chairs is usually made of a thinner sponge material with poor resilience. Sitting on the chair for a long time will cause it to compress and deform, gradually become flat during use, and the supporting force decreases, and it cannot be restored to its original shape and thickness. Utility Model Content

[0004] The purpose of the present invention is to solve the problem in the prior art that existing chairs usually use fixings or glue bonding to connect chair components. Long-term use and frequent loads will cause the fixings to loosen, and there is a risk of loosening or falling off, thereby affecting the stability and safety of the chair. The glue bonding method may also result in the glue bonding being not strong. Chairs connected by fixings are more difficult to repair or replace components. If a chair bonded with glue needs to replace components, it is usually necessary to destroy the original bonding part and then re-glue it, which is not convenient for daily use. The seat surface used in existing chairs is usually made of thin sponge material with poor resilience. Sitting on the chair for a long time will cause it to be compressed and deformed, gradually becoming flat during use, with reduced supporting force, and unable to recover to its original shape and thickness. A combined and firm chair is proposed.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A combined and sturdy chair comprises a chair back, a first mortise being provided on one side of the chair back, a second mortise being provided on the other side of the chair back, a fifth tenon being fixedly connected to one end of the lower side of the chair back, a mortise and tenon being connected to the first tenon on one side of the chair back, a bottom of the first tenon being fixedly connected to a first supporting armrest, a side of the first supporting armrest being fixedly connected to the second tenon, a mortise and tenon being connected to the third tenon on one side of the second mortise, a bottom of the third tenon being fixedly connected to the second supporting armrest, a side of the second supporting armrest being fixedly connected to a fourth tenon, a mortise and tenon being connected to a seat surface on one side of the seat surface, a third mortise being provided on one side of the seat surface, and a rubber rebound pad being fixedly connected to the top surface of the seat surface.

[0007] Preferably, the first mortise and the second mortise have the same size specifications, and the first mortise and the second mortise are respectively located on the left and right sides of the chair back.

[0008] Preferably, the size of the first mortise matches the size of the first tenon, and the size of the second mortise matches the size of the third tenon.

[0009] Preferably, one side of the chair back is connected to the first support armrest through a first mortise and tenon joint, and the other side of the chair back is connected to the second support armrest through a second mortise and tenon joint.

[0010] Preferably, the second tenon and the fourth tenon have the same size specifications, there are several third mortise grooves, the first support armrest is connected to the third mortise groove through the second tenon and mortise and tenon, and the second support armrest is connected to another third mortise groove through the fourth tenon and mortise and tenon.

[0011] Preferably, the seat is in the shape of a cuboid, the chair back is connected to one end of the seat through a fifth tenon and mortise and tenon joint, the central axis of the rubber rebound pad coincides with the central axis of the seat, and the size of the fifth tenon matches the size of the third mortise and tenon joint.

[0012] The utility model has the following beneficial effects:

[0013] 1. The present invention provides a first mortise, a second mortise, a first tenon, a second tenon, a third tenon, a fourth tenon, a third mortise, and a fifth tenon. When the chair is fixedly connected, the tenons and mortise cooperate closely to provide a larger contact area and contact points, thereby increasing the stability and durability of the connection. The various components of the chair are more tightly connected together to form a solid structure, avoiding safety hazards caused by looseness of the chair. The various components of the chair are relatively easy to disassemble and assemble, convenient for transportation and storage, and convenient for maintenance and replacement of damaged parts. The mortise and tenon connection method does not require the use of glue or other chemical adhesives, avoids the use and release of harmful substances, complies with the principles of environmental protection and sustainable development, and reduces negative impacts on the environment. The wood components connected by the mortise and tenon connection can be recycled, reducing resource consumption and waste generation. The mortise and tenon connection method has a certain decorative effect, which can add a unique style and beauty to the chair and make the chair more personalized. The various components of this chair are made of bamboo material, which is environmentally friendly, durable, and low in cost. The chair is ergonomically designed, and the user will feel more comfortable sitting on it.

[0014] 2. The utility model is provided with a rubber rebound pad. When the user uses this chair, the rubber rebound pad can evenly disperse the pressure of the body, reduce pressure concentration, avoid discomfort and fatigue, provide uniform support force, reduce pressure on specific parts, reduce pressure and discomfort on the body, and can quickly return to its original shape and thickness after the user stands up, maintaining stable support force. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the exploded structure of a combined and firm chair proposed by the present invention in the main viewing direction;

[0016] Figure 2 This is a schematic diagram of the exploded structure of a combined and firm chair proposed by the present invention, viewed from the side;

[0017] Figure 3 This is one of the overall structural diagrams of a combined and firm chair proposed in the present invention;

[0018] Figure 4 This is the second schematic diagram of the overall structure of a combined and firm chair proposed by the present invention.

[0019] In the figure: 1. Chair back; 2. First mortise; 3. Second mortise; 4. First supporting armrest; 5. First tenon; 6. Second tenon; 7. Second supporting armrest; 8. Third tenon; 9. Fourth tenon; 10. Seat; 11. Third mortise; 12. Fifth tenon; 13. Rubber rebound pad. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Reference Figure 1-4A combined and firm chair comprises a chair back 1, a first mortise 2 being provided on one side of the chair back 1, and a second mortise 3 being provided on the other side of the chair back 1. The sizes of the first mortise 2 and the second mortise 3 are consistent. The first mortise 2 and the second mortise 3 are respectively located on the left and right sides of the chair back 1. The size of the first mortise 2 matches the size of the first tenon 5, and the size of the second mortise 3 matches the size of the third tenon 8. One end of the lower end of the chair back 1 is fixedly connected to the fifth tenon 12, one side of the chair back 1 is connected to the first tenon 5 by mortise and tenon, the bottom of the first tenon 5 is fixedly connected to the first supporting armrest 4, one side of the first supporting armrest 4 is fixedly connected to the second tenon 6, one side of the second mortise 3 is connected to the third tenon 8, and the bottom of the third tenon 8 is fixedly connected to the second supporting armrest 7. One side of the chair back 1 is connected to the first mortise and tenon 2 mortise and tenon connection of the first supporting armrest 4, the other side of the chair back 1 is connected to the second supporting armrest 7 through the second mortise and tenon 3, one side of the second supporting armrest 7 is fixedly connected to the fourth tenon 9, the second tenon 6 and the fourth tenon 9 have the same size specifications, the number of the third mortise 11 is several, the first supporting armrest 4 is connected to the third mortise 11 through the second tenon 6 mortise and tenon, the second supporting armrest 7 is connected to another third mortise 11 through the fourth tenon 9 mortise and tenon, one side of the fourth tenon 9 is mortise and tenon connection of the seat surface 10, a third mortise 11 is opened on one side of the seat surface 10, the top surface of the seat surface 10 is fixedly connected to the rubber rebound pad 13, the seat surface 10 is rectangular, the chair back 1 is connected to one end of the seat surface 10 through the fifth tenon 12 mortise and tenon, the central axis of the rubber rebound pad 13 and the central axis of the seat surface 10 The first mortise 2, the second mortise 3, the first mortise 5, the second mortise 6, the third mortise 8, the fourth mortise 9, the third mortise 11 and the fifth mortise 12 are matched. When the chair is fixedly connected, the first mortise 5 is mortised to the first mortise 2, the third mortise 8 is mortised to the second mortise 3, the second mortise 6 and the fourth mortise 9 are respectively mortised to the two third mortise 11 on the left and right sides of the seat surface 10, and the fifth mortise 12 is mortised to the third mortise 11 on the other side of the seat surface 10. The tenons and mortise grooves are closely matched to provide a larger contact area and contact points, thereby increasing the stability and durability of the connection and making the various components of the chair more tightly connected together. Together, they form a solid structure, avoiding safety hazards caused by looseness of the chair, making the various components of the chair relatively easy to disassemble and assemble, convenient for transportation and storage, and convenient for maintenance and replacement of damaged parts. The mortise and tenon connection method does not require the use of glue or other chemical adhesives, avoiding the use and release of harmful substances, complying with the principles of environmental protection and sustainable development, and reducing negative impacts on the environment. The wood components connected by mortise and tenon can be recycled, reducing resource consumption and waste generation. The mortise and tenon connection method has a certain decorative effect, which can add a unique style and beauty to the chair and make the chair more personalized. The various components of this chair are made of bamboo material, which is environmentally friendly, durable, and low-cost. The shape of the chair is ergonomically designed, and the user will feel more comfortable sitting on it.The rubber rebound pad 13 can evenly distribute the pressure of the body when the user uses this chair, reduce pressure concentration, avoid discomfort and fatigue, provide uniform support, reduce pressure on specific parts of the body, and reduce pressure and discomfort on the body. After the user stands up, the rubber rebound pad 13 can quickly return to its original shape and thickness, maintaining stable support.

[0022] The use method and advantages of the utility model: When the combined solid chair is in use, the working process is as follows:

[0023] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, when using the device, first connect the electrical equipment in the device to an external power source, place the device in a designated working position, and through the cooperation of the first mortise 2, the second mortise 3, the first tenon 5, the second tenon 6, the third tenon 8, the fourth tenon 9, the third mortise 11 and the fifth tenon 12, when fixing the chair, the first tenon 5 is mortised to the first mortise 2, the third tenon 8 is mortised to the second mortise 3, the second tenon 6 and the fourth tenon 9 are respectively mortised to the two third mortises 11 on the left and right sides of the seat 10, and the fifth tenon 12 is mortised to the third mortise 11 on the other side of the seat 10. The close cooperation between the tenons and the mortise provides a larger contact area and contact points, thereby increasing the stability and durability of the connection, making the various components of the chair more closely connected to form a solid structure, avoiding safety hazards caused by looseness of the chair, and making the various components of the chair relatively easy to disassemble and assemble, convenient for transportation and storage, and convenient for transportation and storage. Maintenance and replacement of damaged parts, the mortise and tenon connection method does not require the use of glue or other chemical adhesives, avoids the use and release of harmful substances, complies with the principles of environmental protection and sustainable development, and reduces negative impacts on the environment. The wood components of the mortise and tenon connection can be recycled, reducing resource consumption and waste generation. The mortise and tenon connection method has a certain decorative effect, which can add a unique style and beauty to the chair and make the chair more personalized. The various components of this chair are made of bamboo material, which is environmentally friendly, durable, and low in cost. The shape of the chair conforms to ergonomic design, and the user will feel more comfortable sitting on it. By providing a rubber rebound pad 13, when the user uses this chair, the rubber rebound pad 13 can evenly disperse the pressure of the body, reduce pressure concentration, avoid discomfort and fatigue, provide uniform support, reduce pressure on specific parts, reduce pressure and discomfort on the body, and can quickly return to its original shape and thickness after the user stands up, maintaining stable support.

[0024] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A combined solid chair, comprising a chair back (1), characterized in that: A first mortise (2) is provided on one side of the chair back (1), a second mortise (3) is provided on the other side of the chair back (1), a lower end of the chair back (1) is fixedly connected to a fifth tenon (12), a mortise and tenon on one side of the chair back (1) is connected to the first tenon (5), the bottom of the first tenon (5) is fixedly connected to the first support armrest (4), one side of the first support armrest (4) is fixedly connected to the second tenon (6), a mortise and tenon on one side of the second mortise (3) is connected to the third tenon (8), the bottom of the third tenon (8) is fixedly connected to the second support armrest (7), one side of the second support armrest (7) is fixedly connected to the fourth tenon (9), a mortise and tenon on one side of the fourth tenon (9) is connected to the seat surface (10), a third mortise (11) is provided on one side of the seat surface (10), and a top surface of the seat surface (10) is fixedly connected to a rubber rebound pad (13).

2. A combined and firm chair according to claim 1, characterized in that: The first mortise (2) and the second mortise (3) have the same size specifications, and the first mortise (2) and the second mortise (3) are respectively located on the left and right sides of the chair back (1).

3. The combined and firm chair according to claim 1, characterized in that: The size of the first mortise (2) matches the size of the first tenon (5), and the size of the second mortise (3) matches the size of the third tenon (8).

4. The combined and firm chair according to claim 1, characterized in that: One side of the chair back (1) is connected to the first support armrest (4) via a first mortise and tenon groove (2), and the other side of the chair back (1) is connected to the second support armrest (7) via a second mortise and tenon groove (3).

5. The combined and firm chair according to claim 1, characterized in that: The second tenon (6) and the fourth tenon (9) have the same size specifications, the number of the third mortise (11) is several, the first support armrest (4) is connected to the third mortise (11) through the second tenon (6) mortise and tenon, and the second support armrest (7) is connected to another third mortise (11) through the fourth tenon (9) mortise and tenon.

6. A combined and firm chair according to claim 1 or 2, characterized in that: The seat (10) is in the shape of a rectangular parallelepiped, and the chair back (1) is connected to one end of the seat (10) through a fifth tenon (12) and a mortise and tenon joint, the central axis of the rubber rebound pad (13) coincides with the central axis of the seat (10), and the size of the fifth tenon (12) matches the size of the third mortise (11).

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