Multifunctional extension table

Abstract

The utility model discloses a multifunctional expansion table, including support leg, desktop, expansion board, expansion device, the expansion device is installed on the support leg under the desktop, the expansion board is horizontally installed on the expansion device, the expansion table has the three forms of folding, fetching and expansion, when in the folding state, the slide rail on the expansion device is folded, and when in the expansion state, the slide rail on the expansion device is folded, the expansion board is horizontally installed on the expansion device. The expansion device is located in the table body and does not occupy external space; in the object taking state, the sliding rails are pulled out, and objects on the expansion plates are convenient to take and place; in the expanding state, the expanding plate is lifted under the condition that the sliding rail is pulled out, meanwhile, the expanding device can drive the expanding plate to rotate by 90 degrees to be flush with the table top and move to the position below the right arm of a user to be locked through the locking push rod, only the locking push rod needs to be pushed to unlock the expanding device in the retracting process, operation is convenient, and meanwhile the expanding device is convenient to use. And the pressure on the wrist and the shoulder caused by suspension of the arm when the user uses the mouse can be greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of home furnishing manufacturing, in particular to a multifunctional extension table. Background Art

[0002] As one of the indispensable furniture in daily life, the computer desk provides users with a comfortable working and learning space. However, the clutter on the desk will greatly affect work efficiency. At the same time, when computer users use the mouse, their arms are suspended in the air, and the weight of the arms will act on the wrists and shoulders. Over time, it will cause carpal tunnel syndrome and shoulder muscle strain, greatly damaging the health of users.

[0003] In order to solve this problem, most users nowadays use an external palm rest, which is clamped on the edge of the table. Such a device not only cannot be folded and takes up space, but also the load on the edge of the table is unreasonable and it is easy to be damaged. In view of the above problems of computer desks, it is necessary to design a computer desk that can be folded, support arms, and has high reliability. Utility Model Content

[0004] The utility model aims at the deficiencies of the existing computer desks and proposes a multifunctional extension desk, which solves the problems existing in the background technology through a mechanical device.

[0005] The utility model is realized through the following technical solutions.

[0006] A multifunctional extension table comprises a supporting leg, a desktop, an extension plate, a slide rail, a fixed plate, a spring, a connecting rod, a limiting seat, a rotating bracket, an active bevel gear, a driven bevel gear, a rotating disk, a fixed shaft, a flat key, a locking push rod and a bracket; the desktop is located on the upper surface of the supporting leg, the slide rail is mounted on the supporting leg by a screw, the fixed plate is mounted on the other side of the slide rail, two ends of the bracket are respectively connected with the fixed plate and the rotating bracket pin shaft, two ends of the connecting rod are respectively connected with the connecting rod ear plate on the fixed plate and the bracket ear plate pin shaft on the rotating bracket, the active bevel gear is fixedly mounted on the bracket by the fixed shaft and the flat key, the other end of the fixed shaft is connected with the rotating bracket pin shaft, the extension plate is fixedly connected with the rotating disk by a screw, the driven bevel gear is fixedly connected with the rotating disk, the rotating disk is connected with the rotating bracket pin shaft, the limiting seat is provided at the bottom of the rotating disk, the active bevel gear and the driven bevel gear are meshed with each other, the locking push rod is sleeved and connected with the square hole on the fixed plate, and the fixed plate and the locking push rod are connected by a spring.

[0007] Furthermore, a bracket boss connected to the bracket pin is symmetrically provided on the cylindrical axis on the ear plate at the bottom of the fixed plate, and a downward-inclined connecting rod ear plate is symmetrically provided on the cylindrical axis. The connecting rod ear plate is connected to the pin at one end of the connecting rod, and a square hole for installing the locking push rod is provided on the fixed plate, and a spring column for installing a spring is provided on the surface of the end of the square hole.

[0008] Furthermore, the rotating bracket is formed by cross-splicing a rotating disk support and a bracket support, the rotating disk support is provided with a through hole connected to the rotating disk pin shaft, and the two sides of the bracket support are respectively provided with a cylindrical boss and a blind hole connected to the bracket and the fixed shaft pin shaft, and the bracket support is symmetrically provided with bracket ear plates inclined downward with the connecting rod.

[0009] Furthermore, the two sides of the bracket are bracket connecting rods with round holes at the ends, and the round hole at one end of the bracket connecting rod is provided with a keyway for installing the flat key. A stabilizing rod is provided between the bracket connecting rods to fix the two, and a locking rod that cooperates with the locking push rod is provided between the two stabilizing rods.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] 1. The expansion board of the utility model can be retracted to serve as a storage table, thereby improving space utilization. The expansion board can be raised to be flush with the desktop by rotation to support the suspended arm, thereby avoiding the problem of arm soreness caused by long-term use of the mouse;

[0012] 2. The fixed plate, connecting rod, bracket and rotating bracket of the utility model form a parallelogram structure. When the expansion plate is rotated to be flush with the table, the bracket will be fixed in a vertical state by the locking rod, and the force on the expansion plate will be consistent with the direction of the bracket, thereby increasing the bearing capacity of the expansion plate and improving the reliability of the expansion table. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model when folded.

[0014] Figure 2 It is a schematic diagram of the overall structure of the utility model when taking objects.

[0015] Figure 3 It is a schematic diagram of the overall structure of the utility model when it is expanded.

[0016] Figure 4 It is a partial schematic diagram of the utility model when expanded.

[0017] Figure 5 It is a schematic diagram of the overall structure of the rear side of the utility model when folded.

[0018] Figure 6It is a partial side and rear schematic diagram of the utility model when it is folded.

[0019] Figure 7 This is a schematic diagram of the fixed plate structure of the utility model.

[0020] Figure 8 This is a schematic diagram of the structure of the rotating bracket of the utility model.

[0021] Fig. 9 This is a schematic diagram of the support structure of the utility model.

[0022] In the figure, 1, supporting legs, 2, table top, 3, expansion board, 4, slide rail, 5, fixed plate, 6, spring, 7, connecting rod, 8, limit seat, 9, rotating bracket, 10, driving bevel gear, 11, driven bevel gear, 12, rotating disk, 13, fixed shaft, 14, flat key, 15, locking push rod, and 16, bracket. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.

[0024] Figure 1-9 The figure shows a schematic diagram of the structure of a multifunctional extension table proposed by the utility model. For the convenience of description, the "upper", "lower", "left" and "right" mentioned below are consistent with the upper, lower, left and right directions of the figure itself, but do not limit the structure of the utility model.

[0025] See also Figure 1-6The utility model provides a technical solution: a multifunctional extension table, including a supporting leg 1, a desktop 2, an extension plate 3, a slide rail 4, a fixed plate 5, a spring 6, a connecting rod 7, a limit seat 8, a rotating bracket 9, an active bevel gear 10, a driven bevel gear 11, a rotating disk 12, a fixed shaft 13, a flat key 14, a locking push rod 15, and a bracket 16; the desktop 2 is located on the upper surface of the supporting leg 1, the slide rail 4 is installed on the supporting leg 1 by screws, the fixed plate 5 is installed on the other side of the slide rail 4, the two ends of the bracket 16 are respectively pin-connected with the fixed plate 5 and the rotating bracket 9, and the two ends of the connecting rod 7 are respectively pin-connected with the connecting rod ear plate 503 on the fixed plate 5 and the bracket ear plate 903 on the rotating bracket 9 The driving bevel gear 10 is fixedly mounted on the bracket 16 through the fixed shaft 13 and the flat key 14. The other end of the fixed shaft 13 is pin-connected to the rotating bracket 9. The expansion plate 3 is fixedly connected to the rotating disk 12 by screws. The driven bevel gear 11 is fixedly connected to the rotating disk 12. The rotating disk 12 is pin-connected to the rotating bracket 9. A limit seat 8 is provided at the bottom of the rotating disk 12. The driving bevel gear 10 and the driven bevel gear 11 are meshed with each other. The locking push rod 15 is sleeved and connected with the square hole 504 on the fixed plate 5. The fixed plate 5 and the locking push rod 15 are connected by a spring 6. An opposite force is applied to the locking push rod 15 by the spring 6, so that the locking push rod 15 locks the bracket 16.

[0026] like Figure 7 As shown, specifically, a bracket boss 502 connected to the bracket 16 is symmetrically provided on the cylindrical shaft 501 on the ear plate at the bottom of the fixing plate 5, and a downwardly inclined connecting rod ear plate 503 is symmetrically provided on the cylindrical shaft 501. The connecting rod ear plate 503 is pin-connected to one end of the connecting rod 7. A square hole 504 for installing the locking push rod 15 is provided on the fixing plate 5, and a spring column 505 for installing a spring is provided on the surface of the end of the square hole 504.

[0027] like Figure 8 As shown, specifically, the rotating bracket 9 is formed by a rotating disk support 901 and a bracket support 902 cross-jointed, the rotating disk support 901 is provided with a through hole connected to the pin shaft of the rotating disk 12, and the two sides of the bracket support 902 are respectively provided with a cylindrical boss and a blind hole connected to the bracket 16 and the fixed shaft 13 pin shaft, and the bracket support 902 is symmetrically provided with a bracket ear plate 903 inclined downward with the connecting rod 7. The rotating bracket 9 is connected with the bracket 16 and the connecting rod 7 to ensure that the rotating disk support 901 always remains vertical during the movement, thereby keeping the expansion plate 3 horizontal.

[0028] like Fig. 9As shown, specifically, the two sides of the bracket 16 are bracket connecting rods 161 with round holes at the ends, and the round hole at one end of the bracket connecting rod 161 is provided with a keyway 162 for installing the flat key 14, and a stabilizing rod 163 is provided between the bracket connecting rods 161 to fix the two, and a locking rod 164 cooperating with the locking push rod 15 is provided between the two stabilizing rods 163, so that the bracket 16 can be stably locked on the fixing plate 5, thereby increasing the stability of the expansion plate 5.

[0029] When the utility model is in use, first, the user needs to pull the expansion plate 3 to pull out the slide rail 4 to facilitate taking out the items placed on the expansion plate 3. Since the fixed plate 5, the connecting rod 7, the rotating bracket 9, and the bracket 16 are connected to form a parallelogram structure, the expansion plate 3 can be lifted to drive the rotating bracket 9 to rotate around the fixed plate 5. Because the angle between the rotating bracket 9 and the fixed plate 5 remains unchanged, the angle between the rotating bracket 9 and the bracket 16 changes during the rotation process. However, the active bevel gear 10 is stationary relative to the bracket 16. During the lifting process, the active bevel gear 10 will drive the driven bevel gear 11 to rotate, thereby driving the expansion plate 3 to rotate until the expansion plate 3 is lifted to be flush with the desktop 2. During the process of the bracket 16 rotating to a vertical state, the locking rod 164 on the bracket 16 will push the locking push rod 15 to compress the spring 6 and then rebound to lock the bracket 16, thereby completing the arrangement of the expansion plate 3; after use, only the locking push rod 15 needs to be pushed to unlock the bracket 16, so that the expansion plate 3 rotates and descends, and then the expansion plate 3 is pushed under the desktop 2 to complete the retraction of the expansion plate 3.

[0030] It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the technical solution concept of the present application, which all fall within the scope of protection of the present application.

Claims

1. A multifunctional extension table, characterized in that: The invention comprises a supporting leg (1), a tabletop (2), an expansion plate (3), a slide rail (4), a fixing plate (5), a spring (6), a connecting rod (7), a limiting seat (8), a rotating bracket (9), an active bevel gear (10), a driven bevel gear (11), a rotating disk (12), a fixing shaft (13), a flat key (14), a locking push rod (15), and a bracket (16); the tabletop (2) is located on the upper surface of the supporting leg (1), the slide rail (4) is mounted on the supporting leg (1) by screws, the fixing plate (5) is mounted on the other side of the slide rail (4), the two ends of the bracket (16) are respectively connected to the fixing plate (5) and the rotating bracket (9) by pins, and the two ends of the connecting rod (7) are respectively connected to the connecting rod ear plate (503) on the fixing plate (5) and the bracket ear plate on the rotating bracket (9). (903) pin-connected, the active bevel gear (10) is fixedly mounted on the bracket (16) through the fixed shaft (13) and the flat key (14), the other end of the fixed shaft (13) is pin-connected to the rotating bracket (9), the expansion plate (3) is fixedly connected to the rotating disk (12) through screws, the driven bevel gear (11) is fixedly connected to the rotating disk (12), the rotating disk (12) is pin-connected to the rotating bracket (9), the bottom of the rotating disk (12) is provided with the limiting seat (8), the active bevel gear (10) and the driven bevel gear (11) are meshed with each other, the locking push rod (15) is sleeved and connected to the square hole (504) on the fixed plate (5), and the fixed plate (5) and the locking push rod (15) are connected by a spring (6).

2. A multifunctional extension table according to claim 1, characterized in that: A bracket boss (502) connected to the bracket (16) with a pin is symmetrically arranged on the cylindrical shaft (501) on the bottom ear plate of the fixing plate (5), and a downwardly inclined connecting rod ear plate (503) is symmetrically arranged on the cylindrical shaft (501), and the connecting rod ear plate (503) is connected to one end of the connecting rod (7) with a pin. A square hole (504) for mounting the locking push rod (15) is provided on the fixing plate (5), and a spring column (505) for mounting a spring is provided on the surface of the end of the square hole (504).

3. The multifunctional extension table according to claim 1, characterized in that: The rotating bracket (9) is formed by cross-jointing a rotating disk support (901) and a bracket support (902); the rotating disk support (901) is provided with a through hole connected to the rotating disk (12) by a pin; both sides of the bracket support (902) are provided with a cylindrical boss and a blind hole connected to the bracket (16) and the fixed shaft (13) by a pin, respectively; and the bracket support (902) is symmetrically provided with bracket ear plates (903) inclined downwardly with the connecting rod (7).

4. The multifunctional extension table according to claim 1, characterized in that: The two sides of the bracket (16) are bracket connecting rods (161) with round holes at the ends, and the round hole at one end of the bracket connecting rod (161) is provided with a keyway (162) for installing the flat key (14). A stabilizing rod (163) is provided between the bracket connecting rods (161) to fix the two, and a locking rod (164) that cooperates with the locking push rod (15) is provided between the two stabilizing rods (163).

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