Seat chassis

Abstract

The utility model relates to the technical field of seat chassis, in particular to a seat chassis which comprises a bearing disc, a chassis body is detachably mounted in the middle of the bearing disc, and a quick dismounting mechanism is arranged at the bottom end of the chassis body and the bottom end of the bearing disc. The rotary table is movably arranged at the top end of the chassis main body, and a rotating mechanism is arranged between the rotary table and the chassis main body; the mounting frame is detachably mounted at the top end of the rotary table, and a horizontal adjusting mechanism is arranged between the mounting frame and the rotary table. Through the meshing linkage design of the gear ring and the four half-tooth gears, synchronous opening and closing actions of the four clamping blocks are achieved, the technical problems that due to the fact that a traditional multi-buckle structure needs to be operated one by one, the installation efficiency is low, and a single person cannot operate are solved, and convenience and reliability of chassis disassembly and assembly are remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of seat chassis, specifically is a seat chassis. BACKGROUND

[0002] The seat chassis mechanism refers to a mechanical structure for supporting and adjusting a seat, which is usually used in various seats such as vehicles, airplanes, and trains as well as office chairs. The seat chassis mechanism is usually composed of various components, including a base, a support column, an adjusting device, and a rail, etc.

[0003] As disclosed in the authorized announcement No. CN222340864U, a seat chassis mechanism includes a chassis body arranged on the upper side of a bearing plate, and a plug-in ring plate, the lower end of which is fixedly connected with a limiting ring. The lower surface of the bearing plate is fixedly connected with a fixed slot shell near the corner position. The interior of the four groups of fixed slot shells is slidably installed with a sliding column. One end of the four groups of sliding columns is fixedly connected with a clamping block. The lower surface of the four groups of sliding columns is fixedly connected with a handle. The lower side of the bearing plate is clamped with a bearing seat. After adopting the above technical scheme, the beneficial effects of the utility model are as follows: the rapid disassembly and assembly function of the chassis is realized, a large number of bolts are not needed in the disassembly and assembly process, the disassembly and assembly efficiency is significantly improved, and the flexibility of the seat is improved.

[0004] Although the above-mentioned patent realizes the rapid disassembly and assembly function of the chassis, during disassembly and assembly, the four groups of clamping blocks need to be opened and closed individually and synchronously. Therefore, a single person cannot operate during installation. Meanwhile, although the connecting plate can be horizontally adjusted, the connecting plate is fixed by relying on friction after adjustment, which is easy to cause displacement due to external force or vibration, affecting the stability of the seat. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a seat chassis to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A seat chassis includes

[0008] A bearing disc, the middle part of which is detachably installed with a chassis body, and the chassis body and the bottom end of the bearing disc are provided with a quick disassembly and assembly mechanism;

[0009] A rotating table, which is movably arranged at the top end of the chassis body, and a rotating mechanism is arranged between the rotating table and the chassis body;

[0010] An installation frame, which is detachably installed at the top end of the rotating table, and a horizontal adjusting mechanism is arranged between the installation frame and the rotating table.

[0011] Preferably, the quick dismounting mechanism comprises a column groove formed in the middle of the bearing disc, a fixed column vertically fixed to the middle of the bottom end of the main body of the base plate, four positioning grooves of equal arc are formed at the inner wall of the column groove, a positioning rod matched with the positioning groove is fixedly connected to the outer wall of the fixed column, four edge grooves of equal arc are formed at the lower end surface of the fixed column, four clamping blocks are rotatably connected to the bottom end of the bearing disc through a rotating shaft in the circumferential direction, and the clamping blocks can be rotatably embedded into the edge grooves.

[0012] Preferably, the quick dismounting mechanism further comprises an annular guide shell fixed to the bottom end of the bearing disc and a gear ring movably mounted in the interior of the annular guide shell, a half-tooth gear meshed with the inner wall of the gear ring is fixedly connected to the outer end of the clamping block away from the fixed column, a spur gear meshed with the outer wall of the gear ring is rotatably connected to the right bottom end of the bearing disc through a rotating shaft, the bottom end of the spur gear is fixedly connected with a handle A, an arc-shaped guide groove is arranged on the bottom end of the bearing disc and close to the outer side of the spur gear, springs are arranged at the inner two ends of the arc-shaped guide groove, and the middle top end of the handle A extends to the middle of the arc-shaped guide groove and is fixedly connected with the springs at the two ends.

[0013] Preferably, the rotating mechanism comprises a circular guide rail fixed to the top end of the base plate main body and four sliding seats of equal arc arranged on the circular guide rail, and the top ends of the four sliding seats are fixedly connected to the bottom end of the rotating table.

[0014] Preferably, the horizontal adjusting mechanism comprises sliding grooves symmetrically formed at the two sides of the top end of the rotating table, a sliding rod fixedly connected to the interior of the sliding groove, a sliding block movably sleeved to the outer portion of the sliding rod, a vertical frame fixedly connected to the top middle portion of the sliding block, the bottom ends of the two sides of the mounting frame are fixedly connected with the vertical frame through bolts, a horizontal positioning plate is fixedly connected to the top right side of the rotating table, a plurality of positioning holes are equidistantly formed on the positioning plate, a transmission shell is fixedly mounted at the middle bottom end of the mounting frame, a sleeve is rotatably connected to the interior of the transmission shell through a bearing, a plug rod is threadedly connected to the interior of the sleeve, a worm wheel is fixedly connected to the middle outer wall of the sleeve, a worm is rotatably connected to the interior of the transmission shell through a bearing and is meshed with the worm wheel, a handle B is fixedly connected to the front surface of the worm, and a plurality of indexes are equidistantly arranged on the rod body of the handle B.

[0015] Preferably, a limiting groove is formed at the middle portion of the mounting frame and away from the side of the positioning plate, a connecting piece is fixedly connected to the left side of the plug rod and penetrates through the sleeve, and a limiting rod is fixedly connected to the left top end of the connecting piece and is slidably connected with the limiting groove.

[0016] Compared with the prior art, the utility model has the advantages of:

[0017] 1. This type of seat chassis achieves the synchronous opening and closing of four locking blocks through the meshing linkage design of a gear ring and four half-tooth gears. This solves the technical problems of low installation efficiency and inability for a single person to operate due to the need for operation of each traditional multi-clamp structure, and significantly improves the convenience and reliability of chassis disassembly and assembly.

[0018] 2. This type of seat chassis, through the threaded engagement of a worm gear and worm transmission mechanism with a plug rod, combined with the sliding constraint of a limiting rod in a limiting groove, enables the horizontal adjustment of the mounting bracket to have both coarse and fine adjustment functions. This solves the defect of traditional friction fixing methods being easily displaced by external forces, and ensures the mechanical locking stability of the seat after adjustment. Attached Figure Description

[0019] Figure 1 This is a top view of the overall structure of this utility model;

[0020] Figure 2 This is a top view of the chassis body of this utility model;

[0021] Figure 3 This is a bottom view of the support plate of this utility model;

[0022] Figure 4 This is a cross-sectional schematic diagram of the transmission housing of this utility model.

[0023] In the diagram: 1. Bearing plate; 2. Chassis body; 3. Turntable; 4. Mounting frame; 5. Column groove; 6. Fixed column; 7. Positioning groove; 8. Positioning rod; 9. Side groove; 10. Locking block; 11. Annular guide shell; 12. Gear ring; 13. Half gear; 14. Spur gear; 15. Handle A; 16. Circular guide rail; 17. Slide seat; 18. Sliding groove; 19. Sliding rod; 20. Sliding block; 21. Vertical frame; 22. Positioning plate; 23. Positioning hole; 24. Transmission shell; 25. Sleeve; 26. Insert rod; 27. Worm gear; 28. Worm; 29. ​​Handle B; 30. Index; 31. Arc-shaped guide groove; 32. Spring; 33. Limiting groove; 34. Connector; 35. Limiting rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1-4 As shown, this utility model provides a technical solution:

[0026] The utility model provides a seat chassis, including bearing disc 1, wherein detachable installation has chassis body 2 in the middle, chassis body 2 is provided with quick detachable mechanism with the bottom end of bearing disc 1, and the quick detachable mechanism includes the post groove 5 being opened in the middle part of bearing disc 1 and the fixed column 6 being vertically fixed in the middle part of the bottom end of chassis body 2, four positioning slots 7 are opened in the inner wall of post groove 5 with equal arc, the positioning rod 8 matched with positioning slot 7 is fixedly connected at the outer wall of fixed column 6, four edge slots 9 are opened in the lower end surface of fixed column 6 with equal arc, four clamping blocks 10 are rotatably connected with the bottom end of bearing disc 1 along the circumference through the pivot, and the clamping block 10 can be rotatably embedded in the edge slot 9, and the quick detachable mechanism further includes the annular guide shell 11 being fixed to the bottom end of bearing disc 1 and the gear ring 12 being movably installed in the inside of annular guide shell 11, the half-tooth gear 13 is fixedly connected with the inner wall of gear ring 12 on the one end outside of clamping block 10, the spur gear 14 is rotatably connected with the outer wall of gear ring 12 on the right bottom end of bearing disc 1, the bottom end of spur gear 14 is fixedly connected with handle A 15, the arc-shaped guide groove 31 is arranged on the bottom end of bearing disc 1 and the outside close to spur gear 14, and the spring 32 is arranged at the both ends in the inside of arc-shaped guide groove 31, and the middle top end of handle A 15 extends to the middle part of arc-shaped guide groove 31 and is fixedly connected with the spring 32 at both ends,

[0027] In the embodiment, through the meshing linkage design of the gear ring 12 and the four half-tooth gears 13, the synchronous opening and closing action of the four clamping blocks 10 is realized, the technical problems of low installation efficiency and single person unable to operate caused by the need to operate the traditional multi-clasping structure one by one are solved, and the convenience and reliability of the chassis disassembly are significantly improved.

[0028] As Figure 2 And Figure 4As shown, the rotary table 3 is movably arranged at the top end of the chassis body 2, and a rotating mechanism is arranged between the rotary table 3 and the chassis body 2, the rotating mechanism comprising a circular guide rail 16 fixed at the top end of the chassis body 2, and four sliding seats 17 arranged at equal arcs on the circular guide rail 16, the top end of the four sliding seats 17 being fixedly connected to the bottom end of the rotary table 3, and the mounting frame 4 is detachably mounted at the top end of the rotary table 3, and a horizontal adjusting mechanism is arranged between the mounting frame 4 and the rotary table 3, the horizontal adjusting mechanism comprising sliding grooves 18 symmetrically arranged at the top end of the rotary table 3, and sliding rods 19 fixedly connected inside the sliding grooves 18, the outside of the sliding rods 19 movably sleeving sliding blocks 20, the top end of the sliding blocks 20 movably sleeving vertical supports 21, the bottom end of the mounting frame 4 being fixedly connected to the vertical supports 21 through bolts, a horizontal positioning plate 22 being fixedly connected at the top right side of the rotary table 3, a plurality of positioning holes 23 being equidistantly arranged on the positioning plate 22, a transmission shell 24 being fixedly arranged at the bottom end of the mounting frame 4, a sleeve 25 being rotatably connected inside the transmission shell 24 through a bearing, a plug rod 26 being threadedly connected inside the sleeve 25, a worm gear 27 being fixedly connected at the middle outer wall of the sleeve 25, a worm 28 being rotatably connected inside the transmission shell 24 through a bearing and engaging with the worm gear 27, a handle B 29 being fixedly connected to the front of the worm 28, a plurality of indexes 30 being equidistantly arranged on the rod body of the handle B 29, a limiting slot 33 being arranged at the middle of the mounting frame 4 and away from the positioning plate 22, a connecting piece 34 being fixedly connected to the left side of the plug rod 26 and penetrating through the sleeve 25, and a limiting rod 35 being fixedly connected to the left top end of the connecting piece 34 and slidably connected to the limiting slot 33.

[0029] In the embodiment, through the thread cooperation of the worm gear 27, the worm 28 transmission mechanism and the plug rod 26, and the sliding constraint of the limiting rod 35 in the limiting slot 33, the horizontal adjustment of the mounting frame 4 has both coarse and fine adjustment functions, solves the defect that the traditional friction fixing method is easy to be displaced by external force, and ensures the mechanical locking stability of the seat after adjustment.

[0030] Working principle: when installing, insert the fixed column 6 into the column groove 5, and align the positioning rod 8 with the positioning groove 7, then horizontally pull the handle B29 to drive the straight gear to rotate, 14 drives the gear ring 12 to rotate, the gear ring 12 drives the half-tooth gear 13 to move, when the half-tooth gear 13 moves, it drives the clamping block 10 to swing, so that its end rotates and inserts into the side groove 9 to fix the fixed column 6; and the device is provided with a circular guide rail 16 between the rotary table 3 and the chassis main body 2, the rotary table 3 slides on the circular guide rail 16 through the sliding seat 17, so that the device can rotate; when it is necessary to adjust the horizontal position of the mounting frame 4, first rotate the handle B29, the handle B29 drives the worm 28 to rotate, the worm 28 drives the worm wheel 27 to rotate, the worm wheel 27 drives the end of the inserting rod 26 to exit from the positioning hole 23, then move the mounting frame 4 forward and backward, in the moving process, the position of the index 30 can be observed, and the edge of the bearing disc 1 is positioned, so that whether the inserting rod 26 is aligned with the positioning hole 23 can be confirmed, after alignment, reverse the handle B29, and the end of the inserting rod 26 can be inserted into the positioning hole 23 in the current position and fixed.

[0031] It should be noted that the annular guide shell 11 is provided with an opening on the side close to the straight gear 14, which is used for the transmission of the straight gear 14 and the gear ring 12.

[0032] The basic principle, main characteristics and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application, and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A seat pan, characterized by: Comprising The bearing disc (1) is detachably mounted with the chassis body (2), and the chassis body (2) is provided with a quick disassembly and assembly mechanism at the bottom end of the bearing disc (1); The rotating table (3) is movably arranged at the top end of the chassis body (2), and a rotating mechanism is arranged between the rotating table (3) and the chassis body (2); The mounting frame (4) is detachably mounted at the top end of the rotating table (3), and a horizontal adjusting mechanism is arranged between the mounting frame (4) and the rotating table (3); The quick disassembly and assembly mechanism comprises a column groove (5) opened in the middle of the bearing disc (1), and a fixed column (6) vertically fixed in the middle of the bottom end of the chassis body (2), four positioning grooves (7) are opened at the inner wall of the column groove (5) with equal arc, the positioning rod (8) matched with the positioning groove (7) is fixedly connected to the outer wall of the fixed column (6), four edge grooves (9) are opened at the lower end surface of the fixed column (6) with equal arc, and four clamping blocks (10) are rotatably connected to the bottom end of the bearing disc (1) through a rotating shaft in the circumferential direction, and the clamping block (10) can be rotatably embedded in the edge groove (9); The quick disassembly and assembly mechanism further comprises an annular guide shell (11) fixed to the bottom end of the bearing disc (1), and a gear ring (12) movably mounted in the interior of the annular guide shell (11), a half-tooth gear (13) engaged with the inner wall of the gear ring (12) is fixedly connected to the outer end of the clamping block (10) away from the fixed column (6), a spur gear (14) engaged with the outer wall of the gear ring (12) is rotatably connected to the right bottom end of the bearing disc (1) through a rotating shaft, the bottom end of the spur gear (14) is fixedly connected with a handle A (15), an arc-shaped guide groove (31) is arranged at the bottom end of the bearing disc (1) and close to the outer side of the spur gear (14), springs (32) are arranged at both ends of the interior of the arc-shaped guide groove (31), and the middle top end of the handle A (15) extends to the middle of the arc-shaped guide groove (31) and is fixedly connected with the springs (32) at both ends.

2. A seat pan according to claim 1, wherein: The rotating mechanism comprises a circular guide rail (16) fixed to the top end of the chassis body (2), and four sliding seats (17) arranged with equal arc on the circular guide rail (16), and the top end of the four sliding seats (17) is fixedly connected to the bottom end of the rotating table (3).

3. A seat pan according to claim 1, wherein: The horizontal adjusting mechanism comprises sliding grooves (18) symmetrically arranged at both sides of the top end of the rotating table (3), a sliding rod (19) fixedly connected to the inside of the sliding grooves (18), a sliding block (20) movably sleeved at the outside of the sliding rod (19), a vertical support (21) fixedly connected to the middle of the top end of the sliding block (20), and the bottom ends of both sides of the mounting rack (4) are fixedly connected with the vertical support (21) through bolts, a horizontal positioning plate (22) is fixedly connected to the right side of the top end of the rotating table (3), a plurality of positioning holes (23) are equidistantly arranged on the positioning plate (22), a transmission shell (24) is fixedly installed at the middle of the bottom end of the mounting rack (4), a sleeve (25) is rotatably connected to the inside of the transmission shell (24) through a bearing, a plug rod (26) is threadedly connected to the inside of the sleeve (25), a worm wheel (27) is fixedly connected to the middle outer wall of the sleeve (25), a worm (28) engaged with the worm wheel (27) is rotatably connected to the inside upper end of the transmission shell (24) through a bearing, a handle B (29) is fixedly connected to the front surface of the worm (28), and a plurality of indexes (30) are equidistantly arranged on the rod body of the handle B (29).

4. A seat pan according to claim 3, wherein: A limiting groove (33) is arranged at the middle of the mounting rack (4) and away from one side of the positioning plate (22), a connecting piece (34) is fixedly connected to the left side of the plug rod (26) and penetrates through the sleeve (25), and a limiting rod (35) slidably connected with the limiting groove (33) is fixedly connected to the left top end of the connecting piece (34).

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