Chair mechanical frame with improved structure

Abstract

The utility model discloses a chair mechanical frame with an improved structure, which comprises bottom supports, a butt-joint assembly, a support adjusting assembly, a telescopic support assembly and a power supply, the bottom supports are uniformly fixed on the side wall of a butt-joint sleeve in the butt-joint assembly, a butt-joint column is slidably connected in the butt-joint sleeve, the bottom end of the butt-joint column is provided with a bottom bracket, and the bottom bracket is provided with a telescopic support. A locking motor is fixedly installed on the bottom support, the output end of the locking motor is fixedly connected with a locking gear in a sleeved mode, and the locking gear is connected to the rack in a meshed mode. The locking motor drives the locking gear to rotate reversely, so that the locking block is separated from the butt joint sleeve to release the fixation of the bottom support, the mounting and dismounting process is simple, and the user experience is improved; and the pitching supporting angle of the connecting base can be conveniently adjusted according to actual requirements through the arranged supporting adjusting assembly, the individual requirements of users are met, and the practicability of the mechanical frame is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chair mechanical frames, in particular to a chair mechanical frame with an improved structure. Background Art

[0002] The seat mechanical frame is a frame structure composed of different parts. It is mainly used to support and fix various parts of the seat. It is usually made of high-strength steel or other metal materials to ensure its sufficient strength and durability. It is a key part in seat design and affects the overall stability, comfort and service life of the seat. The existing seat mechanical frame can basically meet daily use needs, but there are still certain shortcomings. First, the pulley base of the existing seat mechanical frame is mostly fixed to the bottom of the structure by bolts, and the installation and disassembly process is cumbersome, which affects the user's experience; second, the overall structure of the seat mechanical frame is simple, and the pitch angle of the entire supporting structure cannot be adjusted, which makes it difficult to meet the user's personalized needs and affects the practicability of the mechanical frame; therefore, it is necessary to design a chair mechanical frame with an improved structure. Summary of the invention

[0003] The purpose of the utility model is to provide a chair mechanical frame with an improved structure, so as to solve the problems that the pulley base of the existing chair mechanical frame is mostly fixed to the bottom of the structure by bolts, the installation and disassembly process is cumbersome, which affects the user experience; and the overall structure of the chair mechanical frame is simple, and the pitch angle of the entire supporting structure cannot be adjusted, which makes it difficult to meet the personalized needs of users and affects the practicality of the mechanical frame.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: an improved chair mechanical frame, comprising a bottom support, a docking assembly, a support adjustment assembly, a connecting seat, a telescopic support assembly, a telescopic plate and a power supply, wherein the bottom support is evenly fixed on the side wall of a docking sleeve in the docking assembly, a docking column is slidably connected in the docking sleeve, a bottom bracket is provided at the bottom end of the docking column, a locking motor is fixedly installed on the bottom bracket, a locking gear is fixedly sleeved at the output end of the locking motor, the locking gear is meshedly connected to the rack, the rack is fixed on the locking block, and the locking block is slidably connected to the slide groove provided at the bottom end of the docking column; the top end of the docking column is fixedly sleeved on the support The bottom of the support frame in the support adjustment assembly is provided with a support platform at the top center of the support frame, and an adjusting motor is embedded and installed in a groove symmetrically opened on the support platform, and the output end of the adjusting motor is fixedly connected with an adjusting gear, and the adjusting gear is meshingly connected with a tooth groove opened at the bottom of the arc-shaped bracket, the arc-shaped bracket is fixed to the bottom of the support block, and the support block is slidably connected to the support platform; a connecting seat is provided at the top of the support block, and the top of the connecting seat is rotatably connected to a rotating bracket in the telescopic support assembly, and a telescopic cylinder is fixedly connected to the rotating bracket, and the output end of the telescopic cylinder is rotatably connected to the fixed ear, and the fixed ear is symmetrically fixed on the telescopic beam, and a top support plate is symmetrically provided on the telescopic beam.

[0005] As a further technical solution of the utility model, the docking assembly consists of a docking sleeve, a reinforcement cover, a docking column, a bottom bracket, a locking motor, a locking gear, a rack and a locking block. The docking column is fixedly sleeved with a reinforcement cover, and the reinforcement cover is sleeved on the top of the docking sleeve.

[0006] As a further technical solution of the utility model, the support adjustment assembly consists of a support frame, a support platform, a side limit plate, an adjustment motor, an adjustment gear, an arc-shaped bracket and a support block. Side limit plates are symmetrically arranged on both sides of the top of the support frame, and the side limit plates are slidably connected to the arc-shaped bracket.

[0007] As a further technical solution of the utility model, the telescopic support assembly is composed of a rotating bracket, a telescopic cylinder, a fixed ear, a hinged bracket, a top support plate, a reset spring, a side support plate and a telescopic beam, and a side support plate is provided on one side of the top support plate.

[0008] As a further technical solution of the utility model, the top support plate is cooperatively connected with a hinged bracket, and the hinged bracket is fixedly connected with a telescopic plate.

[0009] As a further technical solution of the utility model, a return spring is fixedly connected to the hinged bracket, and one end of the return spring is fixed to the connecting seat.

[0010] As a further technical solution of the utility model, a power supply is provided on one side of the top of the connecting seat, and the power supply is electrically connected to the telescopic cylinder, the adjusting motor and the locking motor respectively.

[0011] The utility model provides an improved structure of a chair mechanical frame, which has the advantages that: the docking column is sleeved in the docking sleeve by limiting the position through the provided reinforcement cover, and after the docking is completed, the locking motor drives the locking gear to rotate, and then the locking gear and the rack are engaged with each other to make the locking block move outward along the sliding groove at the bottom of the docking column, and then the locking block contacts the bottom of the docking sleeve to lock and fix the bottom support to the bottom of the docking column, and the locking motor drives the locking gear to reverse so that the locking block is separated from the docking sleeve to release the fixation of the bottom support, the installation and disassembly process is simple, and the user experience is improved; the provided support adjustment component is used to support the connecting seat on the top of the bottom support and the docking column, and the adjusting motor drives the adjusting gear to rotate, and the adjusting gear and the tooth groove at the bottom of the arc-shaped bracket are matched with each other to drive the arc-shaped bracket to slide on the side limit plate, and at the same time, the support block and the connecting seat are supported by the support platform, thereby ensuring the stability of the structure, facilitating the adjustment of the pitch support angle of the connecting seat according to actual needs, meeting the personalized needs of users, and improving the practicality of the mechanical frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0014] Figure 2 It is a partial structural top view of the utility model;

[0015] Figure 3 It is a schematic diagram of the assembly structure of the docking assembly in the utility model;

[0016] Figure 4 for Figure 3 A partial enlarged view of the middle A area;

[0017] Figure 5 It is a three-dimensional diagram of part of the structure of the utility model.

[0018] In the figure: 1. bottom support; 2. docking assembly; 3. support adjustment assembly; 4. connecting seat; 5. telescopic support assembly; 6. telescopic plate; 7. power supply; 21. docking sleeve; 22. reinforcement cover; 23. docking column; 24. bottom bracket; 25. locking motor; 26. locking gear; 27. rack; 28. locking block; 31. support frame; 32. support table; 33. side limit plate; 34. adjustment motor; 35. adjustment gear; 36. arc bracket; 37. support block; 51. rotating bracket; 52. telescopic cylinder; 53. fixing ear; 54. hinged bracket; 55. top support plate; 56. reset spring; 57. side support plate; 58. telescopic beam. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] See also Figure 1-5The utility model provides an embodiment: a chair mechanical frame with an improved structure, including a bottom support 1, a docking assembly 2, a support adjustment assembly 3, a connecting seat 4, a telescopic support assembly 5, a telescopic plate 6 and a power supply 7. The bottom support 1 is evenly fixed on the side wall of a docking sleeve 21 in the docking assembly 2, a docking column 23 is slidably connected in the docking sleeve 21, a bottom bracket 24 is provided at the bottom end of the docking column 23, a locking motor 25 is fixedly installed on the bottom bracket 24, a locking gear 26 is fixedly sleeved on the output end of the locking motor 25, the locking gear 26 is meshed and connected to a rack 27, the rack 27 is fixed on a locking block 28, and the locking block 28 is slidably connected to a slide groove provided at the bottom end of the docking column 23; the docking column 23 The top end is fixedly sleeved on the bottom of the support frame 31 in the support adjustment component 3, and a support platform 32 is arranged at the top center of the support frame 31. An adjusting motor 34 is embedded and installed in a groove symmetrically provided on the support platform 32, and an adjusting gear 35 is fixedly connected to the output end of the adjusting motor 34, and the adjusting gear 35 is meshingly connected to the tooth groove provided at the bottom of the arc-shaped bracket 36. The arc-shaped bracket 36 is fixed to the bottom of the support block 37, and the support block 37 is slidably connected to the support platform 32; a connecting seat 4 is arranged on the top of the support block 37, and the top of the connecting seat 4 is rotatably connected to a rotating bracket 51 in the telescopic support assembly 5, and a telescopic cylinder 52 is fixedly connected to the rotating bracket 51, and the output end of the telescopic cylinder 52 is rotatably connected to the fixed ear 53 , and the fixed ears 53 are symmetrically fixed on the telescopic beam 58, and the telescopic beam 58 is symmetrically provided with a top support plate 55; the docking assembly 2 is composed of a docking sleeve 21, a reinforcement cover 22, a docking column 23, a bottom bracket 24, a locking motor 25, a locking gear 26, a rack 27 and a locking block 28, and the docking column 23 is fixedly sleeved with a reinforcement cover 22, and the reinforcement cover 22 is sleeved on the top of the docking sleeve 21; the support adjustment assembly 3 is composed of a support frame 31, a support platform 32, a side limit plate 33, an adjustment motor 34, an adjustment gear 35, an arc bracket 36 and a support block 37, and the side limit plates 33 are symmetrically provided on both sides of the top of the support frame 31, and the side limit plates 33 are slidably connected to the arc bracket 36; the telescopic support assembly 5 is composed of a rotating The movable bracket 51, the telescopic cylinder 52, the fixed ear 53, the hinged bracket 54, the top support plate 55, the return spring 56, the side support plate 57 and the telescopic beam 58 are composed, and the side support plate 57 is arranged on one side of the top support plate 55; the top support plate 55 is matched with the hinged bracket 54, and the hinged bracket 54 is fixedly connected with the telescopic plate 6; the hinged bracket 54 is fixedly connected with the return spring 56, and one end of the return spring 56 is fixed on the connecting seat 4; the top side of the connecting seat 4 is provided with a power supply 7, and the power supply 7 is electrically connected to the telescopic cylinder 52, the adjusting motor 34 and the locking motor 25 respectively; the power supply 7 is used to connect an external power supply to provide power to the telescopic cylinder 52, the adjusting motor 34 and the locking motor 25 when in use;

[0022] Specifically, when in use, the reinforcement cover 22 is provided to limit the docking column 23 and sleeve it in the docking sleeve 21. After the docking is completed, the locking motor 25 drives the locking gear 26 to rotate, and then the locking gear 26 and the rack 27 are engaged with each other to make the locking block 28 move outward along the slide groove at the bottom of the docking column 23. Thereafter, the locking block 28 contacts the bottom of the docking sleeve 21 to lock and fix the bottom support 1 to the bottom of the docking column 23. The locking motor 25 drives the locking gear 26 to reverse and make the locking block 28 disengage from the docking sleeve 21 to release the fixation of the bottom support 1. The installation and disassembly process is simple, which improves the user's experience. The support adjustment component 3 is provided to support the connecting seat 4 at the top of the bottom support 1 and the docking column 23, and the adjusting gear 35 is driven to rotate by the adjusting motor 34. By utilizing the mutual cooperation between the adjusting gear 35 and the tooth groove at the bottom of the arc-shaped bracket 36, the arc-shaped bracket 36 is driven to slide on the side limit plate 33. At the same time, the support block 37 and the connecting seat 4 are supported by the support platform 32, thereby ensuring the stability of the structure and facilitating the adjustment of the pitch support angle of the connecting seat 4 according to actual needs, thereby meeting the personalized needs of users and improving the practicality of the mechanical frame; the telescopic plate 6 is used to fix the leg support. When necessary, the telescopic cylinder 52 is used to push out the telescopic beam 58, so that the articulated bracket 54 is extended and extended, thereby pushing the telescopic beam 58 and the leg support on the articulated bracket 54 to flip and extend, providing the user with a leg support effect. After use, the telescopic cylinder 52 pulls back the telescopic beam 58 and pushes the reset spring 56 to return to its original position, so that the articulated bracket 54 and the telescopic plate 6 are folded and retracted.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A chair mechanical frame with an improved structure, comprising a bottom support (1), a docking assembly (2), a support adjustment assembly (3), a connecting seat (4), a telescopic support assembly (5), a telescopic plate (6) and a power supply (7), characterized in that: The bottom support (1) is evenly fixed on the side wall of the docking sleeve (21) in the docking assembly (2), a docking column (23) is slidably connected in the docking sleeve (21), a bottom bracket (24) is arranged at the bottom end of the docking column (23), a locking motor (25) is fixedly mounted on the bottom bracket (24), an output end of the locking motor (25) is fixedly sleeved with a locking gear (26), the locking gear (26) is meshingly connected to a rack (27), the rack (27) is fixed to a locking block (28), and the locking block (28) is slidably connected to a slide groove provided at the bottom end of the docking column (23); the top end of the docking column (23) is fixedly sleeved on the bottom of a support frame (31) in the support adjustment assembly (3), a support platform (32) is arranged at the top center of the support frame (31), and a symmetrically opened support platform (32) is provided on the support platform (32). An adjusting motor (34) is embedded and installed in the groove provided, and an adjusting gear (35) is fixedly connected to the output end of the adjusting motor (34), and the adjusting gear (35) is meshedly connected to a tooth groove provided at the bottom of the arc-shaped bracket (36), and the arc-shaped bracket (36) is fixed to the bottom of the support block (37), and the support block (37) is slidably connected to the support platform (32); a connecting seat (4) is provided at the top of the support block (37), and a rotating bracket (51) in the telescopic support assembly (5) is rotatably connected to the top of the connecting seat (4), and a telescopic cylinder (52) is fixedly connected to the rotating bracket (51), and the output end of the telescopic cylinder (52) is rotatably connected to the fixing ear (53), and the fixing ear (53) is symmetrically fixed to the telescopic beam (58), and a top support plate (55) is symmetrically provided on the telescopic beam (58).

2. The improved chair mechanical frame according to claim 1, characterized in that: The docking assembly (2) is composed of a docking sleeve (21), a reinforcement cover (22), a docking column (23), a bottom bracket (24), a locking motor (25), a locking gear (26), a rack (27) and a locking block (28); the reinforcement cover (22) is fixedly sleeved on the docking column (23), and the reinforcement cover (22) is sleeved on the top of the docking sleeve (21).

3. The improved chair mechanical frame according to claim 1, characterized in that: The support adjustment assembly (3) is composed of a support frame (31), a support platform (32), a side limit plate (33), an adjustment motor (34), an adjustment gear (35), an arc-shaped bracket (36) and a support block (37). The side limit plates (33) are symmetrically arranged on both sides of the top of the support frame (31), and the side limit plates (33) are slidably connected to the arc-shaped bracket (36).

4. The improved chair mechanical frame according to claim 1, characterized in that: The telescopic support assembly (5) is composed of a rotating bracket (51), a telescopic cylinder (52), a fixing ear (53), a hinged bracket (54), a top support plate (55), a return spring (56), a side support plate (57) and a telescopic beam (58), wherein a side support plate (57) is provided on one side of the top support plate (55).

5. The improved chair mechanical frame according to claim 4, characterized in that: The top support plate (55) is cooperatively connected to a hinged bracket (54), and the hinged bracket (54) is fixedly connected to a telescopic plate (6).

6. The improved chair mechanical frame according to claim 5, characterized in that: A return spring (56) is fixedly connected to the hinged bracket (54), and one end of the return spring (56) is fixed to the connecting seat (4).

7. The improved chair mechanical frame according to claim 6, characterized in that: A power source (7) is provided on one side of the top of the connection seat (4), and the power source (7) is electrically connected to the telescopic cylinder (52), the regulating motor (34) and the locking motor (25), respectively.

Images