Disassembling type dining chair iron stand structure
By designing a detachable dining chair frame structure, and using bolt connections and pre-embedded nuts to achieve a detachable dining chair frame, the high cost problem caused by integral molding structures is solved, and the stability and service life are improved.
Patent Information
- Application Number
- CN202520712000.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-04-16
AI Technical Summary
The existing integral molded dining chair frames cannot be disassembled, leading to increased transportation, sales, packaging, and warehousing costs.
Design a detachable dining chair frame structure, including a first leg support frame, a second leg support frame, a backrest support frame, and a backrest mounting frame. The detachable connection method is achieved through bolt connection and pre-embedded nuts to ensure stability and balance.
This design achieves a stable connection for the dining chairs, avoiding misalignment and detachment issues, reducing transportation and storage costs, and extending their service life.
Smart Images
Figure CN223860458U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of furniture technology, specifically a detachable dining chair frame structure. Background Technology
[0002] Conventional dining chair frames are manufactured as a single piece and cannot be disassembled once completed. However, direct transportation and sales would increase costs significantly. On the one hand, the large size of the chair frame would hinder logistics and incur high shipping costs. On the other hand, the large size would also multiply packaging and warehousing costs. Therefore, there is an urgent need to design a detachable dining chair frame structure to solve these problems. Utility Model Content
[0003] The purpose of this utility model is to provide a detachable dining chair frame structure, which solves the problems of increased transportation and sales costs caused by the inability to disassemble existing integral molded structures, as well as increased packaging and warehousing costs.
[0004] To solve the above-mentioned technical problems, this utility model provides a detachable dining chair frame structure, including a first leg support frame, a second leg support frame, a backrest support frame, and a backrest mounting frame. The first leg support frame and the second leg support frame are arranged crosswise, and their tops are connected to the seat of the dining chair. The backrest support frame is a V-shaped frame with a bent lower part. The bent section of the V-shaped frame is located in one of the intersections of the first leg support frame and the second leg support frame, and its two sides abut against the two side walls of the intersection. The bent section of the backrest support frame is connected to the seat of the dining chair. The lower part of the backrest mounting frame is inserted into the upper part of the backrest support frame. Both the backrest mounting frame and the backrest support frame are connected to the back of the dining chair by fasteners.
[0005] Furthermore, the end of the bent section of the V-shaped frame is arc-shaped.
[0006] Furthermore, the bent sections of the first foot support frame, the second foot support frame, and the backrest support frame are connected to the seat plate of the dining chair by a number of first bolts.
[0007] Furthermore, several first pre-embedded nuts are embedded in the bottom of the seat of the dining chair;
[0008] At the intersection of the first foot support frame and the second foot support frame, a first mating groove and a second mating groove are respectively provided to cooperate with each other. After the first bolt passes through the mating part, it is screwed into each of the corresponding first pre-embedded nuts.
[0009] Furthermore, the fastener is a second bolt.
[0010] Furthermore, several second pre-embedded nuts are embedded in the backrest of the dining chair;
[0011] The backrest mounting bracket is an n-shaped bent tube structure. The two vertical frames of the backrest mounting bracket are connected to the backrest support frame with the second bolts passing through them laterally. Each second bolt extends out of the backrest mounting bracket and the backrest support frame and is screwed into the corresponding second pre-embedded nut.
[0012] The beneficial effects of this utility model are as follows: The backrest support frame, the first foot support frame, and the second foot support frame of this utility model can effectively improve the connection stability between the backrest support frame and the seat and backrest of the dining chair. At the same time, it can also ensure the balance force between the top surface of the bent section of the backrest support frame and the top surfaces of the first and second foot support frames. Furthermore, the fact that both sides of the bent section abut against the two sides of the intersection of the first and second foot support frames can effectively prevent the backrest support frame from slipping.
[0013] The rounded ends of the V-shaped frame bends effectively prevent the V-shaped frame tips from damaging the walls of the first and second leg support frames, thereby extending the lifespan of the tables and chairs.
[0014] The design of the first bolt passing through the first and second leg support frames and engaging with the first pre-embedded nut via the mating parts of the first and second mating grooves ensures the stable position of the first and second leg support frames, preventing misalignment. It also ensures the top surfaces of the first and second leg support frames are flush, facilitating better contact with the bottom of the chair seat and improving the chair's stability. Furthermore, the first bolt, after passing through the mated first and second leg support frames, engages with the first pre-embedded nut embedded in the bottom of the chair seat to prevent the first and second leg support frames from detaching from the chair seat.
[0015] The second bolts, which are horizontally inserted at the joints of the two vertical frames of the backrest mounting bracket and the backrest support bracket, allow the bottom of the two vertical frames of the backrest mounting bracket to be inserted into the upper two side brackets of the V-shaped frame of the backrest support bracket. By inserting the second bolts horizontally at the joints, the two can be effectively limited to prevent the backrest mounting bracket and the backrest support bracket from becoming disconnected. Attached Figure Description
[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is an exploded view of a detachable dining chair frame structure according to this utility model;
[0018] Figure 2 This is a structural diagram of the first leg support frame of a detachable dining chair frame structure according to this utility model;
[0019] Figure 3 This is a structural diagram of the second leg support frame of a detachable dining chair frame structure according to this utility model;
[0020] In the diagram: 1-First foot support frame, 2-Second foot support frame, 3-Backrest support frame, 4-Backrest mounting frame, 5-First bolt, 6-Second bolt. Detailed Implementation
[0021] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0022] In one specific embodiment of this utility model, such as Figures 1-3 As shown, a detachable dining chair frame structure is disclosed, including a first leg support frame 1, a second leg support frame 2, a backrest support frame 3, and a backrest mounting frame 4. The first leg support frame 1 and the second leg support frame 2 are arranged crosswise, and their tops are connected to the seat of the dining chair. The backrest support frame 3 is a V-shaped frame with a bent lower part. The end of the bent section of the V-shaped frame is arc-shaped. The arc-shaped end of the bent section of the V-shaped frame can effectively avoid the tip of the V-shaped frame from damaging the walls of the first leg support frame 1 and the second leg support frame 2, thereby improving the service life of the table and chair.
[0023] The bent section of the V-shaped frame is located within one of the intersections where the first foot support frame 1 and the second foot support frame 2 intersect, and the two sides of the bent section abut against the two sides of the intersection.
[0024] The aforementioned backrest support frame 3, the first foot support frame 1, and the second foot support frame 2 can effectively improve the connection stability between the backrest support frame 3 and the seat and backrest of the dining chair. At the same time, it can also ensure the balance force between the top surface of the bent section of the backrest support frame 3 and the top surfaces of the first foot support frame 1 and the second foot support frame 2. Furthermore, the fact that both sides of the bent section abut against the two sides of the intersection of the first foot support frame 1 and the second foot support frame 2 can effectively prevent the backrest support frame 3 from slipping sideways.
[0025] The bent section of the backrest support frame 3 is connected to the seat of the dining chair. The lower part of the backrest mounting frame 4 is inserted into the upper part of the backrest support frame 3. Both the backrest mounting frame 4 and the backrest support frame 3 are connected to the backrest of the dining chair by fasteners, namely the second bolt 6.
[0026] The bent sections of the first leg support frame 1, the second leg support frame 2, and the backrest support frame 3 are connected to the seat plate of the dining chair by several first bolts 5.
[0027] Several pre-embedded nuts are embedded in the bottom of the seat of the dining chair;
[0028] The first foot support frame 1 and the second foot support frame 2 are respectively provided with a first mating groove 11 and a second mating groove 12 that cooperate with each other. After the first bolt 5 passes through the mating part, it is screwed into each corresponding first pre-embedded nut.
[0029] The first bolt 5 passes through the mating parts of the first foot support frame 1 and the second foot support frame 2 via the first mating groove 11 and the second mating groove 12, and then engages with the first pre-embedded nut. This arrangement allows the first foot support frame 1 and the second foot support frame 2 to be secured in position through the engagement of the first mating groove 11 and the second mating groove 12, preventing misalignment. It also ensures that the top surfaces of the first foot support frame 1 and the second foot support frame 2 are flush, facilitating better contact with the bottom surface of the chair seat and improving the stability of the chair. Furthermore, the first bolt 5 passes through the mated first foot support frame 1 and the second foot support frame 2 and then engages with the first pre-embedded nut embedded in the bottom of the chair seat to prevent the first foot support frame 1 and the second foot support frame 2 from detaching from the chair seat.
[0030] Several second pre-embedded nuts are embedded in the backrest of the dining chair;
[0031] The backrest mounting bracket 4 is an n-shaped bent tube structure. The two vertical brackets of the backrest mounting bracket 4 and the backrest support bracket 3 are respectively horizontally inserted with second bolts 6. Each second bolt 6 extends out of the backrest mounting bracket 4 and the backrest support bracket 3 and is screwed into the corresponding second pre-embedded nut.
[0032] The second bolts 6, which are horizontally inserted at the joints of the two vertical frames of the backrest mounting bracket 4 and the backrest support bracket 3, allow the bottom of the two vertical frames of the backrest mounting bracket 4 to be inserted into the upper two side supports of the V-shaped frame of the backrest support bracket 3. The second bolts 6, which are horizontally inserted at the joints of the two, can effectively limit the movement of the two and prevent the backrest mounting bracket 4 and the backrest support bracket 3 from becoming disconnected.
[0033] The working process of this utility model is as follows:
[0034] Installation process of dining chair frame structure:
[0035] Align the second mating groove 12 of the second foot support frame 2 with the first mating groove 11 of the first foot support frame 1. After alignment, the two are in a cross state. Insert the first bolt 5 from the bottom of the first foot support frame 1, and pass through the first mating groove 11 and the second mating groove 12 in sequence. Then, extend it from the top of the second foot support frame 2 and screw it into the first pre-embedded nut embedded in the bottom of the seat of the dining chair. Then, insert the remaining first bolts 5 from the bottom of the first foot support frame 1 and the second foot support frame 2 upwards and screw them into the corresponding first pre-embedded nuts embedded in the bottom of the seat of the dining chair.
[0036] Then, the bent section of the backrest support frame 3 enters from the intersection of the first foot support frame 1 and the second foot support frame 2, and abuts against the two sides of the intersection. The upper surface of the bent section of the backrest support frame 3 is flush with the seat of the dining chair, and the first bolt 5 is passed through the bottom of the bent section of the backrest support frame 3 and screwed into the corresponding first pre-embedded nut embedded at the bottom of the seat of the dining chair.
[0037] The lower part of the backrest mounting bracket 4 is inserted into the two side brackets on the upper part of the backrest support bracket 3, and the second bolt 6 is passed through the insertion point of the backrest mounting bracket 4 and the backrest support bracket 3 and screwed into the second pre-embedded nuts embedded at both ends of the dining chair backrest inside the backrest mounting bracket 4. The remaining second bolts 6 are inserted from the upper outer part of the backrest mounting bracket 4 and extend into the inner side of the backrest mounting bracket 4 and screwed into the corresponding second pre-embedded nuts embedded in the dining chair backrest.
[0038] The above-disclosed embodiment is merely a preferred embodiment of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A detachable dining chair frame structure, characterized in that, The chair includes a first foot support frame (1), a second foot support frame (2), a backrest support frame (3), and a backrest mounting frame (4). The first foot support frame (1) and the second foot support frame (2) are arranged crosswise, and their tops are connected to the seat of the dining chair. The backrest support frame (3) is a V-shaped frame with a bent lower part. The bent section of the V-shaped frame is located in one of the intersections of the first foot support frame (1) and the second foot support frame (2), and the two sides of the bent section abut against the two side walls of the intersection. The bent section of the backrest support frame (3) is connected to the seat of the dining chair. The lower part of the backrest mounting frame (4) is inserted into the upper part of the backrest support frame (3). Both the backrest mounting frame (4) and the backrest support frame (3) are connected to the backrest of the dining chair by fasteners.
2. The detachable dining chair frame structure according to claim 1, characterized in that, The ends of the bent sections of the V-shaped frame are rounded.
3. The detachable dining chair frame structure according to claim 1, characterized in that, The bent sections of the first foot support frame (1), the second foot support frame (2), and the backrest support frame (3) are connected to the seat of the dining chair by a number of first bolts (5).
4. The detachable dining chair frame structure according to claim 3, characterized in that, Several first pre-embedded nuts are embedded in the bottom of the seat of the dining chair; The first foot support frame (1) and the second foot support frame (2) are respectively provided with a first mating groove (11) and a second mating groove (12) that cooperate with each other. After the first bolt (5) passes through the mating part, it is screwed into each of the corresponding first pre-embedded nuts.
5. The detachable dining chair frame structure according to claim 1, characterized in that, The fastener is the second bolt (6).
6. The detachable dining chair frame structure according to claim 5, characterized in that, Several second pre-embedded nuts are embedded in the backrest of the dining chair; The backrest mounting bracket (4) is an n-shaped bent tube structure. The two vertical brackets of the backrest mounting bracket (4) and the backrest support bracket (3) are respectively horizontally inserted with the second bolt (6). Each second bolt (6) extends out of the backrest mounting bracket (4) and the backrest support bracket (3) and is screwed into the corresponding second pre-embedded nut.