A desktop extension stand

Abstract

The utility model discloses a kind of extension frame for desktop, including the extension component installed on desktop;The extension component includes support plate, both ends of the support plate are equipped with first shaft pin rod, swing arm is rotatably installed on first shaft pin rod, and the other end of swing arm is connected with the fixed seat shaft pin equipped;One side of support plate is also equipped with mounting cavity, and heater is equipped in mounting cavity. Since support plate is arranged on the side of desktop, support plate can rotate on the side of desktop, when support plate is rotated to desktop, so that support plate can act as pad for eating, reduce the damage caused by high temperature of meal to desktop;When support plate is rotated to below desktop, heater is used to heat the leg of user, to protect the knee joint of user. The equipment is installed on desktop using fixed seat, so that the equipment is more versatile compared with prior art, i. e. new and old office desks can be used, reduce the cost spent by user to replace office desk.

Description

Technical Field

[0001] This utility model relates to the field of office supplies technology, specifically to a desktop extension rack. Background Technology

[0002] A Chinese patent with publication number CN113475844A discloses a smart desk that solves the problem of limited space and inconvenience for lunch breaks in traditional desks. By incorporating a drive component, it allows for easy switching between a work surface and a rest area, effectively improving the desk's practicality. Furthermore, a protective component ensures that the drive component simultaneously protects cups or fragile items on the desk, thus enhancing work efficiency. However, in cold winter weather, prolonged sitting at a desk can impede blood circulation in the legs, making them more prone to coldness and potentially causing serious leg injuries and symptoms such as rheumatism. Utility Model Content

[0003] The purpose of this invention is to provide a desktop extension rack to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a desktop extension rack, comprising an extension component installed on the desktop; the extension component includes a support plate, both ends of which are provided with first pivot pins, a swing arm is rotatably mounted on the first pivot pins, and the other end of the swing arm is connected to a fixed seat pivot pin; one side of the support plate is also provided with a mounting cavity, and a heater is provided in the mounting cavity.

[0005] As a preferred technical solution of this utility model: the fixed base is further provided with a shaft pin seat, and the swing arm passes through the shaft pin seat via a second shaft pin and engages with a first nut threadedly. By tightening the first nut, the swing arm is prevented from rotating on the fixed base.

[0006] As a preferred technical solution of this utility model: after the first shaft pin passes through the swing arm, it is connected to the second nut, and the support plate continues to rotate as the second nut is tightened.

[0007] As a preferred technical solution of this utility model: the fixed base is provided with a slot on one side of the desktop, and the side of the slot facing the desktop is provided with double-sided adhesive to fix the fixed base on the desktop.

[0008] As a preferred technical solution of this utility model: the heater includes a base plate, a support column is provided on the base plate, and an electric heating wire is wound on the support column. The electric heating wire is movably connected to an external power cord through a socket.

[0009] As a preferred technical solution of this utility model: the support plate is made of antibacterial polyethylene, and a heat insulation pad is laid in the installation cavity.

[0010] The beneficial effects of this utility model by adopting the above technical solution are as follows: Since a support plate is set on one side of the tabletop and the support plate can rotate on one side of the tabletop, when the support plate rotates to the tabletop, it can act as a mat for eating, reducing the damage to the tabletop caused by the high temperature of the food; when the support plate rotates to the bottom of the tabletop, a heater can be used to heat the user's legs to protect the user's knee joints.

[0011] 2. Because the device is mounted on a desktop using a fixed stand, it is more versatile than existing technologies, meaning it can be used on both new and old desks, reducing the cost for users to replace their desks. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure when the support plate is rotated to the bottom of the table.

[0013] Figure 2 This is a schematic diagram of the structure when the support plate is rotated to the top of the table.

[0014] Figure 3 This is an exploded structural diagram of the expansion component of this utility model;

[0015] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle;

[0016] Figure 5 This is a schematic diagram of the main structure of the heater of this utility model.

[0017] In the diagram: 1. Desktop; 2. Extension component; 20. Support plate; 21. Heater; 22. Fixing base; 23. Mounting cavity; 24. Slot; 25. First nut; 26. Shaft pin seat; 27. Second nut; 28. Swing arm; 29. ​​First shaft pin; 210. Second shaft pin; 211. Socket; 212. Base plate; 213. Heating wire; 214. Support column. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "upper surface," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this utility model.

[0019] Please see Figure 1-5 The present invention provides an embodiment of a desktop extension rack, comprising an extension component 2 mounted on a desktop 1; the extension component 2 includes a support plate 20, both ends of which are provided with first shaft pins 29, a swing arm 28 is rotatably mounted on the first shaft pins 29, and the other end of the swing arm 28 is pin-connected to a fixed seat 22; one side of the support plate 20 is also provided with a mounting cavity 23, and a heater 21 is provided in the mounting cavity 23.

[0020] In summary, since a support plate 20 is provided on one side of the desktop 1, and the support plate 20 can rotate on one side of the desktop 1, when the support plate 20 rotates onto the desktop 1, it can serve as a placemat for eating, reducing the damage to the desktop caused by the high temperature of food, and can also be used to place a keyboard; when the support plate 20 rotates under the desktop 1, the heater 21 can be used to heat the user's legs to protect the user's knee joints.

[0021] In particular, since the device is mounted on the desktop 1 using the mounting bracket 22, it is more versatile than existing technology, meaning it can be used on both new and old desks, reducing the cost for users to replace their desks.

[0022] To facilitate the rotation of the support plate 20 and ensure its stable and reliable position after rotation, the fixed base 22 is also provided with a shaft pin seat 26. The swing arm 28 passes through the shaft pin seat 26 via a second shaft pin 210 and is threadedly engaged with a first nut 25. Tightening the first nut 25 prevents the swing arm 28 from rotating on the fixed base 22. Therefore, the rotation of the support plate 20 can be facilitated by adjusting the tightness of the first nut 25. At the same time, tightening the first nut 25 after rotation also ensures that the angle of the support plate 20 after rotation can be maintained for a long time, preventing the support plate 20 from rotating automatically.

[0023] Furthermore, since the first pivot pin 29 passes through the swing arm 28 and is connected to the second nut 27, and the support plate 20 continues to rotate as the second nut 27 is tightened, the stability and reliability of the position of the support plate 20 after rotation can be further improved by using the second nut 27.

[0024] The mounting base 22 is provided with a slot 24 on one side of the tabletop 1, and the side of the slot 24 facing the tabletop is provided with double-sided adhesive to fix the mounting base 22 on the tabletop 1. Therefore, the mounting base 22 can be used to snap onto the side of the tabletop 1, which increases the contact area between the mounting base 22 and the tabletop and prevents the mounting base 22 from shaking during use.

[0025] Based on the above scheme, the heater 21 includes a base plate 212, on which a support column 214 is provided, and an electric heating wire 213 is wound around the support column 214. The electric heating wire 213 is movably connected to an external power cord through a socket 211. Therefore, by increasing the number of support columns 214, it is possible to ensure that the electric heating wire 213 can be reliably wound on the base plate 212 while also increasing the winding density of the electric heating wire 213. Furthermore, it facilitates the overall installation of the heater 21 into the mounting cavity 23. The electric heating wire 213 is preferably a carbon fiber heating wire or a silicone heating wire, i.e., the type used in household electric blankets. The support column 214 has a through hole at its center, and bolts are used to pass through the through hole to fix the support column to the base plate 212.

[0026] Furthermore, the support plate 20 is made of antibacterial polyethylene, which, utilizing its broad-spectrum antibacterial properties, allows the support plate 20 to provide a relatively clean and hygienic mat for the user while supporting tableware during meals. Additionally, a heat-insulating pad is laid inside the mounting cavity 23 to reduce the adverse effects of the heating wire 213 on the support plate 20 when it generates heat.

[0027] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A desktop extension rack, characterized in that: Includes extension components (2) installed on the desktop (1); The expansion component (2) includes a support plate (20), both ends of which are provided with first shaft pins (29), and a swing arm (28) is rotatably mounted on the first shaft pins (29), and the other end of the swing arm (28) is connected to the shaft pin of the fixed seat (22). The support plate (20) is also provided with a mounting cavity (23) on one side, and a heater (21) is provided in the mounting cavity (23).

2. The desktop extension rack according to claim 1, characterized in that: The fixed seat (22) is also provided with a shaft pin seat (26). The swing arm (28) passes through the shaft pin seat (26) via a second shaft pin (210) and is threaded into a first nut (25). The first nut (25) is tightened to prevent the swing arm (28) from rotating on the fixed seat (22).

3. A desktop extension rack according to claim 2, characterized in that: After the first pivot pin (29) passes through the swing arm (28), it is connected to the second nut (27), and the support plate (20) continues to rotate as the second nut (27) is tightened.

4. A desktop extension rack according to claim 3, characterized in that: The mounting base (22) is provided with a slot (24) on one side of the tabletop (1), and the side of the slot (24) facing the tabletop is provided with double-sided adhesive to fix the mounting base (22) on the tabletop (1).

5. A desktop extension rack according to any one of claims 1-4, characterized in that: The heater (21) includes a base plate (212), on which a support column (214) is provided, and an electric heating wire (213) is wound on the support column (214). The electric heating wire (213) is movably connected to an external power cord through a socket (211).

6. A desktop extension rack according to claim 5, characterized in that: The support plate (20) is made of antibacterial polyethylene and a heat insulation pad is laid in the mounting cavity (23).

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