Hidden wedge-shaped wood frame mortise and tenon joint reinforcing device
Through the hidden wedge-shaped wooden frame mortise and tenon node reinforcement device, the problems of difficult disassembly and assembly of mortise and tenon structures, high maintenance costs and waste of resources in the existing technology are solved, and the easy disassembly and assembly and reuse of mortise and tenon structures are realized, reducing maintenance Cost and environmental pollution.
Patent Information
- Application Number
- CN202421351596.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-06-14
AI Technical Summary
The existing wooden frame mortise and tenon node reinforcement technology has problems such as difficulty in disassembling and assembly, high maintenance costs, harmful glue, waste of resources and environmental pollution.
A hidden wedge-shaped wooden frame mortise and tenon node reinforcement device is adopted, which includes a mortise member, a mortise member, a mortise body, a bolt and a nut. By placing strips of metal plates on the wedge body and connecting them with the mortise member, a tight mortise and tenon structure is formed. , easy to disassemble and reuse.
It realizes easy disassembly and assembly and reuse of mortise and tenon structures, reduces maintenance costs, avoids the use of glue, saves resources and reduces environmental pollution, and improves production efficiency and economic benefits.
Smart Images
Figure CN222436781U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the furniture industry, and particularly relates to a hidden wedge-shaped wooden frame mortise and tenon joint reinforcement device. Background Art
[0002] The mortise and tenon structure is a traditional building structure, and its main function is to connect the components tightly to form a stable building system. The characteristic of the mortise and tenon structure is that the components are connected by the tenon and the mortise. The tenon is a protruding part, and the mortise is a recessed part. The two components are connected together using precision processing methods to prevent the components from displacement and falling off. Several different mortise and tenon structures are combined together to form wooden buildings, wooden machinery, and wooden furniture. Affected by processing technology, tools, and processes, the mortise and tenon connection cannot be very tight, and there will be a certain gap between the mortise and tenon. When the mortise and tenon structure is subjected to force, relative displacement will occur between the mortise and tenon, resulting in loosening of the mortise and tenon joints. To solve this problem, the mortise and tenon joints must be reinforced. At present, there are about five existing reinforcement technologies for the mortise and tenon joints of wooden frames, which are: ① Wooden wedge reinforcement technology. The so-called wooden wedge reinforcement technology is to drive a wooden wedge into the gap at the mortise and tenon connection node, increase the friction between them by increasing the pressure between the mortise and tenon, and achieve the purpose of preventing the mortise and tenon structure from loosening. Sometimes, in order to prevent the wooden wedge from loosening, glue is applied on the surface of the wooden wedge; ② Wooden pin reinforcement technology. The so-called wooden pin reinforcement technology is to drill a hole at the appropriate position of the tenon and mortise. When the tenon and mortise are connected, the two holes overlap, and the wooden pin is inserted into the two holes to make the tenon and mortise tightly connected together. Sometimes, in order to prevent the wooden pin from loosening, glue is applied on the surface of the wooden pin; ③ Glue bonding reinforcement technology. The so-called glue bonding reinforcement technology is to fill the gap between the tenon and mortise with glue, and use the bonding method to make the tenon and mortise tightly connected together; ④ Self-locking mechanism reinforcement technology. The so-called self-locking mechanism reinforcement technology is to combine multiple tenons and mortise together, use the interaction between them, limit the displacement of each component, form a self-locking mechanism, and make the tenon and mortise tightly connected together. ⑤ Metal component reinforcement technology. The so-called metal component reinforcement technology is to use fasteners to fix metal components on the tenon and mortise components respectively, so that the tenon and mortise are tightly connected together. The above five processing technologies for wood frame nodes all have some shortcomings to varying degrees. Taking solid wood mortise and tenon furniture as an example, the shortcomings are: ① For furniture with solid wood mortise and tenon structure made by wooden wedges, wooden pins, and self-locking mechanism reinforcement technology, it is very difficult to disassemble and replace parts during maintenance, which can easily cause damage to the mortise and tenon components and increase the maintenance cost; ② For furniture made by glue bonding reinforcement technology, when a component of the furniture is damaged, it is impossible to disassemble the component for replacement and repair, resulting in the scrapping of the entire furniture, causing certain economic losses to consumers and causing serious waste of wood resources.At the same time, a large amount of domestic garbage is also generated, causing environmental pollution; ③ There are a large number of harmful substances in the glue, which spread to people's living environment and have some adverse effects on people's health; ④ Furniture made by glue bonding reinforcement technology cannot be disassembled and assembled repeatedly, so the storage and transportation of furniture have to be stored and transported as a whole. This method occupies a large space and increases the cost of storage and transportation; ⑤ The wooden wedge and wooden pin reinforcement technology is adopted. The size of the wooden wedge and wooden pin depends on the experience of the craftsman. The wooden wedge and wooden pin are too small, and the mortise and tenon structure is not reinforced firmly; the wooden wedge and wooden pin are too large, which is easy to damage the mortise and tenon components; ⑥ The wooden pin and self-locking mechanism reinforcement technology are adopted. These two processing technologies have complex structures, high process and precision requirements, high processing difficulty, and long working hours. As a result, the production efficiency is too low, the production cost is too high, and the economic benefits are poor. It is not suitable for large-scale production of digitalization and machining. It is only suitable for small-scale production in manual workshops. Secondly, there are very few craftsmen who can make wooden pins and self-locking mechanism reinforcement technologies, which makes it difficult to promote the large-scale use of these two reinforcement technologies; ⑦ Furniture made with glue reinforcement technology cannot be disassembled due to the mortise and tenon structure, resulting in the inability to reuse the parts of used furniture, which also increases the difficulty of recycling wood resources. Summary of the invention
[0003] The purpose of the utility model is to overcome the above technical deficiencies and provide a hidden wedge-shaped wooden frame mortise and tenon joint reinforcement device which is easy to disassemble and assemble, can be disassembled and assembled repeatedly, is convenient for repairing and replacing parts when furniture is damaged, and has a good reinforcement effect.
[0004] The technical solution adopted by the utility model to solve the technical problem is: a hidden wedge-shaped wooden frame mortise and tenon node reinforcement device comprises a tenon component, a mortise component, a wedge-shaped body, a bolt and a nut, and is characterized in that a strip metal plate is placed on the wedge-shaped body, threaded holes are drilled at both ends of the strip metal plate respectively, a flat-head bolt is passed through the threaded hole at one end of the wedge-shaped body to install the strip metal plate and the wedge-shaped body and then put them into the single-sided wedge-shaped tenon groove of the tenon component, a metal plate groove is provided adjacent to a single-sided wedge-shaped tenon groove of the tenon component, the strip metal plate is fitted in the metal plate groove, the tenon of the tenon component is inserted into the straight tenon groove formed by the tenon component along the direction of the strip metal plate and pressed, a cylindrical nut mounting hole is provided at a position on the tenon component corresponding to the other end of the strip metal plate, a cylindrical nut is fixedly installed in the cylindrical nut mounting hole, a flat-head bolt passes through the threaded hole of the strip metal plate and cooperates with the cylindrical nut to install the tenon component and the strip metal plate together. Furthermore, the height of the cylindrical nut mounting hole is the same as that of the cylindrical nut, and the outer surface of the cylindrical nut is provided with a pattern. The appearance of the wedge-shaped body is consistent with the shape of the single-sided wedge-shaped tenon groove, and the volume of the wedge-shaped body is slightly larger than the volume of the single-sided wedge-shaped tenon groove.
[0005] The beneficial effects of the utility model are as follows: the hidden wedge-shaped wooden frame mortise and tenon node reinforcement device makes it easy to disassemble the already fastened mortise and tenon structure by installing a strip metal plate at the mortise and tenon node. At the same time, it can be disassembled repeatedly, which is convenient for furniture disassembly, maintenance and replacement of parts. The advantages of the hidden wedge-shaped wooden frame mortise and tenon node reinforcement device are as follows: the reinforcement device avoids damage to the mortise and tenon structure during disassembly and assembly due to the easy disassembly and assembly of the mortise and tenon structure, thereby reducing the cost of furniture maintenance; the technology reinforces the mortise and tenon node, avoids the use of glue, and prevents harmful substances in the glue from causing harm to people; the furniture made by the reinforcement device is easy to disassemble and assemble repeatedly, and the volume of the furniture becomes smaller after disassembly and assembly, and the space occupied during transportation and storage becomes smaller, saving the cost of transportation and storage; the straight tenon, which is the most commonly used mortise and tenon structure, is used to reinforce the nodes of the straight mortise and tenon structure. The straight mortise and tenon structure is easy to process and has low requirements for wood. In this way, working hours can be shortened, production costs can be reduced, economic benefits can be improved, and it is suitable for large-scale production of digitalization and machining; the furniture made by the reinforcement device has a mortise and tenon structure that is easy to disassemble, which is convenient for repair and replacement of parts when the furniture is damaged, thus extending the service life of the furniture. It saves expenses for consumers, saves a lot of wood resources, reduces a large amount of domestic waste generated by furniture scrapping, and also has a positive effect on environmental protection; the furniture made by the reinforcement device has a mortise and tenon structure that is easy to disassemble and assemble, making it possible to reuse and recycle waste furniture. It lays a solid foundation for the green development of the furniture industry; the reinforcement device uses high-strength, corrosion-resistant metal components and fasteners, and has a good reinforcement effect. In addition, the metal components and fasteners are installed on the inner side of the wooden frame, which will not affect the appearance of the furniture. BRIEF DESCRIPTION OF THE DRAWINGS
[0006] Figure 1 It is a front view of a hidden wedge-shaped wood frame mortise and tenon joint reinforcement device.
[0007] Figure 2 yes Figure 1 Left view of .
[0008] Figure 3 yes Figure 1 Top view of the .
[0009] In the figure, 1-wedge-shaped body; 2-strip metal plate; 2-1-metal plate groove; 3-one flat head bolt; 4-nut; 5-two flat head bolts; 6-tenon component; 6-1-tenon; 7-mortise component; 7-1-straight tenon groove; 7-2-single-sided wedge-shaped tenon groove. DETAILED DESCRIPTION
[0010] The following is a specific description with reference to the accompanying drawings:
[0011] For example, see the attached Figures 1 to 3The hidden wedge-shaped wood frame mortise and tenon node reinforcement device is to drill two threaded holes on the left and right sides of the strip metal plate 2 respectively, and use a flat head bolt 25 on the wedge body 1 to install the wedge body 1 and the strip metal plate 2 together through the two threaded holes on the right side and put them into the single-sided wedge-shaped tenon groove 7-2 of the mortise component 7. The appearance shape of the wedge body 1 is the same as the shape of the single-sided wedge groove 7-2, and the volume of the wedge body 1 is larger than the volume of the single-sided wedge groove 7-2, so that the wedge body 1 and the single-sided wedge groove 7-2 fit more closely. A metal plate groove 2-1 is provided at the lower part of the tenon component 6. The strip metal plate 2 is fitted into the metal plate groove 2-1. The tenon 6-1 is inserted into the straight tenon groove 7-1 of the mortise component 7 along the direction of the strip metal plate 2 and pressed tightly. Two cylindrical nut mounting holes are drilled on the tenon component 6 at the position corresponding to the left side of the strip metal plate 2. The depth of the two cylindrical nut mounting holes is equal to the height of the cylindrical nut 4. The outer surface of the cylindrical nut 4 is coated with glue and embedded in the hole. Two flat head bolts-3 are passed through the two threaded holes of the strip metal plate 2 and the cylindrical nut 4 for threaded connection to connect the strip metal plate 2 and the tenon component 6 together. The outer surface of the cylindrical nut 4 is provided with a pattern to increase the firmness of the combination of the cylindrical nut 4 and the tenon component 6.
[0012] The material of the wedge 1 is not limited, but it must be corrosion-resistant and have certain strength and elasticity. The material of the flat head bolt 1 3 and the flat head bolt 2 5 and the cylindrical nut 4 is required to be corrosion-resistant and strong. The material of the strip metal plate 2 is required to be strong and corrosion-resistant.
[0013] The working principle of the utility model is divided into three aspects: connection force, friction force and clamping force. First of all, the connection force is the force formed by the tenon and the mortise when connected, which makes the three components tightly combined to form a rigid connection. The size of this connection force depends on the shape and processing accuracy of the tenon and the mortise, as well as the insertion depth during connection. If the shape and processing accuracy of the tenon and the mortise are better, the deeper the insertion depth, the greater the connection force will be. Secondly, the friction force and the close fit of the tenon and mortise structure form an important friction force between the two components. This force can strengthen the connection and make it more stable. The size of the friction force depends on the surface roughness, material, temperature and weight between the two components. The size of the friction force is essentially impossible to measure directly, but it is one of the important factors that the tenon and mortise structure can withstand external loads. Finally, the clamping force. When the three components are connected together, if they are not tightly fitted, gaps will appear. In order to eliminate these gaps, technologies such as clamping wedges and glue bonding can be used to make the tenon and mortise tightly combined. The connection force, friction force and clamping force of the tenon and mortise structure, no matter which method is used, as long as any of the three forces is increased, the firmness of the tenon and mortise structure will be increased. The utility model adopts a method of increasing the connection force and the clamping force: that is, the hidden wedge-shaped wood frame mortise and tenon joint reinforcement device uses two flat head bolts 5 to connect the wedge-shaped body 1 and the strip metal plate 2 together and put them into the single-sided wedge-shaped vertebral groove 7-2 of the mortise and tenon component 7 to form a straight mortise and tenon groove 7-1. The strip metal plate 2 is fitted into the metal plate groove 2-1, and the tenon 6-1 is inserted into the straight mortise and tenon groove 7-1 along the direction of the strip metal plate 2 and pressed tightly, and the strip metal plate 2 and the tenon component 6 are connected by two flat head bolts 1-3 and cylindrical nuts 4. Due to the interaction between the single-sided wedge-shaped mortise and tenon groove 7-2, the strip metal plate 2, and the tenon 6-1 on the wedge-shaped body 1, the tenon 6-1 and the straight mortise and tenon groove 7-1 can be prevented from relative displacement, so that the mortise and tenon structure can be prevented from loosening, and the mortise and tenon structure is reinforced. Drill two holes with the same depth and height as the cylindrical nut 4 in the metal plate groove 2-1 at the position corresponding to the flat head bolt 3, apply glue to the outer surface of the cylindrical nut 4 and insert it into the hole. The appearance shape of the wedge body 1 is the same as the shape of the single-sided wedge-shaped tenon groove 11, but the volume of the wedge body 1 is slightly larger than the volume of the single-sided wedge-shaped tenon groove 11, so that the wedge body 1 and the single-sided wedge-shaped tenon groove 11 can fit more closely. Thereby increasing the connection force and clamping force between the tenon and mortise structures. When disassembling the tenon and mortise structure, first remove the two flat head bolts 3 that fix the strip metal plate 2 and the tenon member 6, then pull out the tenon 6-1 from the straight tenon groove 7-1, and take out the reinforcement device. In this way, the tenon and mortise structure can be easily disassembled.
Claims
1. A hidden wedge-shaped wooden frame mortise and tenon joint reinforcement device, comprising a tenon member (6), a mortise member (7), a wedge-shaped body (1), a bolt, and a nut, characterized in that: A strip metal plate (2) is placed on the wedge-shaped body (1), and threaded holes are drilled at both ends of the strip metal plate (2). Two flat-head bolts (5) are passed through the threaded holes at one end of the wedge-shaped body (1). The strip metal plate (2) and the wedge-shaped body (1) are installed and placed in the single-sided wedge-shaped tenon groove (7-2) of the mortise component (7). A metal plate groove (2-1) is provided on the tenon component (6) adjacent to the single-sided wedge-shaped tenon groove (7-2), and the strip metal plate (2) is fitted in the metal plate groove (2-1). The tenon (6-1) of the tenon component (6) is inserted into the straight tenon groove (7-1) formed by the mortise component (7) and pressed along the direction of the strip metal plate (2). A nut mounting hole is provided on the tenon component (6) at a position corresponding to the other end of the strip metal plate (2). A nut (4) is fixedly installed in the nut mounting hole. A flat head bolt (3) passes through the threaded hole of the strip metal plate (2) and cooperates with the nut (4) to mount the tenon component (6) and the strip metal plate (2) together.
2. The hidden wedge-shaped wood frame mortise and tenon joint reinforcement device according to claim 1 is characterized in that: The height of the nut mounting hole is the same as the height of the nut (4), and the outer surface of the nut (4) is provided with a pattern.
3. The hidden wedge-shaped wood frame mortise and tenon joint reinforcement device according to claim 2 is characterized in that: The appearance of the wedge-shaped body (1) is consistent with the shape of the single-sided wedge-shaped tenon groove (7-2), and the volume of the wedge-shaped body (1) is greater than the volume of the single-sided wedge-shaped tenon groove (7-2).