Anti-collapse portable support frame of movable chair

Abstract

The utility model discloses an anti-collapse portable support frame of a movable chair, which is characterized in that an arranged fixing hook can be matched with different positions of the tail end of a chair surface, and a bolt is used for increasing the fixing strength, so that the problem that the chair surface is easy to loosen or damage in a traditional fixing mode is solved; the width of the contact surface with the chair surface is not less than 5cm, so that the pressure is uniformly distributed and the chair surface bottom is not damaged; height adjustment is achieved through cooperation of the hole grooves and the adjusting teeth, a stable triangular supporting structure is formed, and the chair face is prevented from inclining forwards. Only the right rod and the left rod are used as the lifting piece, a traditional complex adjusting mechanism is simplified, and the maintenance difficulty is reduced; the stabilizing piece is provided with a hole groove which is meshed with the adjusting teeth of the lifting piece to ensure the stability after adjustment; all the components are connected through hinges, folding storage is facilitated, the problem of inconvenient carrying is solved, the size is reduced after folding, the carry-on requirement of students is met, and the structure is different from a traditional fixed structure.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical structures, specifically relating to a portable anti-collapse support frame for a movable chair. Background Technology

[0002] The chairs commonly used in universities often have a front-facing downward tilt, which can lead to insufficient contact area between the student and the chair surface, causing discomfort. In extreme cases, the chair surface may not even provide enough friction to support the student's weight in the direction of the chair surface, meaning the student will "slip down" and consequently suffer from poor classroom performance. Straightening the student's legs may alleviate the problem, but this will affect the seats in front and still cause discomfort.

[0003] To solve this problem, a simple mechanical structure can be used: the front half of the seat is slightly adjusted upwards and fixed while maintaining the stability of the structure, but there is currently no structure that can achieve this function. Utility Model Content

[0004] The purpose of this utility model is to provide a portable anti-sag support frame for mobile chairs, which aims to solve the problem of discomfort caused by the front side of the mobile chair tilting downward.

[0005] To solve the above technical problems, the following technical solution is adopted:

[0006] A portable support frame for reclining chairs is characterized by comprising a fixing component, a lifting component, and a stabilizing component. The fixing component is used to connect to and support the chair surface. The fixing component is connected to the lifting component, which is used to support the fixing component. The lifting component is connected to the stabilizing component, which is used to support the lifting component.

[0007] Furthermore, the fastener includes a fixing hook for connecting the chair surface.

[0008] Furthermore, the fixing hook is provided with a threaded hole for installing a bolt, which secures the fixing hook to the chair surface.

[0009] Furthermore, the fixing hook has a U-shaped structure, forming a U-shaped groove with a depth of 5cm or more.

[0010] Furthermore, the fastener has an arc-shaped end, which is used to lift the front end of the chair.

[0011] Furthermore, the lifting component includes a right rod and a left rod, both of which are connected to fixing components and stabilizing components to form a triangular support structure.

[0012] Furthermore, the right rod is provided with hinge hole one, the left rod is provided with hinge hole two, and the fixing component is provided with hinge hole three. Hinge hole one, hinge hole two and hinge hole three are connected through hinge component one to hinge the fixing component to the right rod and the left rod.

[0013] Furthermore, the right rod is equipped with adjusting teeth, and the stabilizing component is equipped with a row of holes and slots, with the adjusting teeth and holes and slots matching each other.

[0014] Furthermore, at least two slots are provided, and the height can be adjusted by connecting the slots at different positions.

[0015] Furthermore, the left rod is provided with hinge hole four, and the stabilizer is provided with hinge hole five. Hinge hole four and hinge hole five are connected through hinge member two to hinge the left rod to the stabilizer.

[0016] The above technical solution has the following beneficial effects:

[0017] The fixing hooks can be adapted to different positions at the rear of the chair seat, and bolts are used to increase the fixing strength, solving the problem of easy loosening or damage to the chair seat in traditional fixing methods; the contact surface width with the chair seat is ≥5cm, ensuring even pressure distribution and preventing damage to the bottom of the chair seat; height adjustment is achieved through the cooperation of the slots and adjusting teeth, forming a stable triangular support structure to prevent the chair from tilting forward; the lifting mechanism only uses the right and left rods, simplifying the traditional complex adjustment mechanism and reducing maintenance difficulty; the stabilizing component has slots that mesh with the adjusting teeth of the lifting component to ensure stability after adjustment; all parts are connected by hinges, which facilitates folding and storage, solving the problem of inconvenience in carrying. The folded size is reduced, meeting the needs of students to carry it with them, which is different from the traditional fixed structure. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the various components of the support frame;

[0020] Figure 2 A simplified diagram of a portable chair;

[0021] Figure 3 This is a schematic diagram showing the adjustment state of the support frame;

[0022] Figure 4 This is a schematic diagram showing the support frame in its stowed state.

[0023] The attached diagram is labeled as follows: Fixing component 1, fixing hook 11, threaded hole 12, mounting groove 13, arc end 14, hinge hole three 15, lifting component 2, right rod 21, left rod 22, hinge hole one 23, hinge hole two 24, adjusting tooth 25, hinge hole four 26, stabilizing component 3, hole groove 31, hinge hole five 32, chair surface 4. Detailed Implementation

[0024] The present invention will be described in detail below with reference to specific embodiments:

[0025] like Figures 1 to 4As shown, the portable counter-sag support frame for the movable chair includes a fixing component 1, a lifting component 2, and a stabilizing component 3, which are interconnected to form the support frame. The fixing component 1 connects to and supports the chair surface 4. One end of the fixing component 1 has a fixing hook 11, which connects to the middle part of the rear end of the chair surface 4, thus connecting the fixing component 1 to the chair surface 4. The fixing hook 11 has a U-shaped structure with a mounting groove 13. The rear end of the chair surface 4 is inserted into the mounting groove 13 to connect with the fixing hook 11. To ensure a secure connection, the fixing hook 11 has a threaded hole 12. A bolt is installed in the threaded hole 12, and after tightening the bolt, the fixing hook 11 is pressed tightly against the chair surface 4, thus achieving a secure connection. This fixing hook 11 structure is adaptable to different positions of the rear end of the chair surface 4 and solves the problem of easy loosening. The width of the fixing component 1 is designed to be greater than or equal to 5cm, meaning the contact surface width between the fixing component 1 and the chair surface 4 is greater than or equal to 5cm, ensuring uniform pressure distribution.

[0026] The other end of the fixing component 1 is provided with an arc end 14. The surface of the arc end 14 is smooth and is a quarter circle. It is used to lift the front end of the seat surface 4. The pressure between the arc end 14 and the seat surface 4 is small, which is safe and reliable. Below the arc end 14 is a hinge hole 3 15. The hinge hole 3 15 is used to hinge the lifting component 2, forming a hinged connection with the lifting component 2.

[0027] The lifting component 2 includes a right rod 21 and a left rod 22. The upper end of the right rod 21 is provided with a hinge hole 1 23, and the upper end of the left rod 22 is provided with a hinge hole 24. The upper ends of the right rod 21 and the left rod 22 are both connected to the fixing component 1. The hinge hole 1 23, the hinge hole 24 and the hinge hole 3 15 are connected to each other. The first hinge component (not shown in the figure) is connected among the three to realize the hinge of the fixing component 1 to the right rod 21 and the left rod 22.

[0028] The bottom of the right rod 21 is provided with an adjusting tooth 25, and the stabilizer 3 is provided with a row of holes and slots 31. The holes and slots 31 are arranged at equal intervals from left to right. The adjusting tooth 25 matches each hole and slot 31, that is, the adjusting tooth 25 can be connected and fixed in each hole and slot 31. When the adjusting tooth 25 is connected to the leftmost hole and slot 31, the height is adjusted to the lowest level. Each time it moves to the right, it can rise a certain height, thereby achieving the purpose of adaptive height adjustment. The number of holes and slots 31 is the number of adjustable heights. The adjustable height range of this utility model is 350mm-450mm. In addition, the holes and slots 31 are connected in an interlocking manner, which has the characteristic of stable connection.

[0029] The bottom of the left rod 22 is provided with hinge hole 4 26, and one end of the stabilizer 3 is provided with hinge hole 5 32. Hinge hole 4 26 and hinge hole 5 32 are matched with each other. Hinge component 2 (not shown in the figure) is connected between the two to realize the hinge between the left rod 22 and the stabilizer 3.

[0030] This utility model prevents the chair seat 4 from tilting forward and sagging by providing support. It allows for height adjustment as needed and also solves some chair noise problems. All components are connected by hinges, allowing for folding into a long strip for storage, reducing volume and meeting portability requirements while maintaining support strength. The right rod 21, left rod 22, and stabilizer 3 form a triangular support structure, which is stable and simplifies traditional complex adjustment mechanisms, reducing maintenance difficulty. The support frame does not have high load-bearing requirements, allowing for the use of lightweight materials to reduce overall weight while ensuring structural stability and durability. The stabilizer 3 has a flat structure, increasing the contact area with the ground and thus improving stability.

[0031] The steps for using this support frame are as follows:

[0032] (1) The support frame is changed from Figure 4 The storage state shown is unfolded and extended to... Figure 3 state;

[0033] (2) Align the fixing hook 11 with the middle of the end of the chair surface 4, and fix it with bolts as appropriate;

[0034] (3) Select any hole or slot 31, insert the adjusting tooth 25, and place the stabilizer 3 flat on the ground.

[0035] (4) Observe the tilt angle of the seat surface 4, change the meshing hole 31 of the adjusting tooth 25, and adjust the tilt angle of the seat surface 4 to a suitable height.

[0036] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A portable support frame for reclining movable chairs, characterized in that: It includes a fixing component, a lifting component, and a stabilizing component. The fixing component is used to connect to and support the chair surface. The fixing component is connected to the lifting component, and the lifting component is used to support the fixing component. The lifting component is connected to the stabilizing component, and the stabilizing component is used to support the lifting component. The fastener includes a fixing hook for connecting the chair surface.

2. The portable anti-collapse support frame for a movable chair according to claim 1, characterized in that: The fixing hook is provided with a threaded hole for installing a bolt, and the fixing hook is fixedly connected to the chair surface by the bolt.

3. The portable anti-collapse support frame for movable chairs according to claim 1, characterized in that: The width of the fastener is greater than or equal to 5cm.

4. The portable support frame for a reclining chair according to claim 1, characterized in that: The fastener has an arc-shaped end, which is used to lift the front end of the chair.

5. The portable support frame for reclining movable chairs according to claim 1, characterized in that: The lifting component includes a right rod and a left rod, both of which are connected to the fixing component and the stabilizing component, forming a triangular support structure.

6. The portable anti-collapse support frame for a movable chair according to claim 5, characterized in that: The right rod is provided with hinge hole one, the left rod is provided with hinge hole two, and the fixing member is provided with hinge hole three. The hinge hole one, the hinge hole two and the hinge hole three are connected by hinge member one, so that the fixing member hinges the right rod and the left rod.

7. The portable support frame for reclining movable chairs according to claim 5, characterized in that: The right rod is provided with adjusting teeth, and the stabilizing component is provided with a slot, the adjusting teeth and the slot being matched with each other.

8. The portable anti-collapse support frame for a movable chair according to claim 7, characterized in that: The hole slot is provided with at least two, and the adjustment tooth achieves height adjustment by connecting the hole slot at different positions.

9. The portable support frame for a reclining chair according to claim 7, characterized in that: The left rod is provided with hinge hole four, and the stabilizer is provided with hinge hole five. The hinge hole four and the hinge hole five are connected by hinge member two to hinge the left rod to the stabilizer.

Images