A lifting tea table

Abstract

The application discloses a lifting tea table, which comprises a tea making table, a frame and a plurality of lifting assemblies. The frame is provided with a sliding groove, and the inner side wall of the sliding groove is provided with a plurality of clamping grooves. Each lifting assembly comprises two middle X-shaped hinged supporting rods, i.e. a first supporting rod and a second supporting rod. The upper end of the first supporting rod is rotatably connected with the tea making table, and the upper end of the second supporting rod is connected with a sliding rod which is gap-fitted in the sliding groove. The sliding rod is provided with a sliding part and a clamping part, and the sliding rod is axially movable relative to the frame to switch the sliding rod between two states. In the first state, the sliding part is slidingly fitted with the sliding groove, the sliding rod is slidable along the length direction of the sliding groove, and the height of the tea making table is adjustable. In the second state, the clamping part is clamped and fitted with the clamping groove, the position of the sliding rod on the sliding groove is locked, and the height of the tea making table is fixed. The lifting tea table has the advantages of simple structure, low cost, good moving flexibility and fast lifting speed.

Description

Technical Field

[0001] This invention relates to the field of furniture equipment technology, specifically to a height-adjustable coffee table. Background Technology

[0002] A coffee table is a piece of furniture used to place tea sets for people to drink tea. Commonly used coffee tables in homes are generally made of solid wood or steel, and their structure typically includes a tabletop and legs. Coffee tables are usually used by multiple people and are often placed in the living room. They are long and bulky, making them inconvenient to move. Furthermore, their height is fixed, which cannot meet the needs of people of different heights. In particular, some users like to drink tea and chat on the bedroom floor, the living room balcony, or the lawn in the yard, but existing coffee tables, due to their weight, inconvenience in moving, and lack of flexibility, cannot meet these needs.

[0003] Currently, some height-adjustable coffee tables have appeared on the market, such as the patent application CN210696565U entitled "A Height-Adjustable Coffee Table." This design features a height-adjustable tea-brewing platform on a fixed table. Specifically, the coffee table base has an inner cavity containing a lifting mechanism. This mechanism includes a lifting base, two pairs of cross-arranged folding frames, a lifting top frame, a tea-brewing surface, and a telescopic cylinder that drives the folding frames. The tea-brewing surface is fixed to the lifting top frame, and the lifting base is fixed relative to the coffee table base. Each pair of folding frames includes a first folding rod and a second folding rod that are hinged to each other. When the two tabletops are opened, the tea-brewing surface can be raised above the tabletops. This tea-brewing surface relies on the telescopic cylinder for height adjustment, resulting in a complex overall structure and high production costs. Furthermore, the entire coffee table needs to be moved when moved, making it inconvenient and lacking flexibility, failing to meet user needs. Moreover, the tea-brewing surface is raised and lowered slowly due to the telescopic cylinder's operation. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a lifting coffee table with simple structure, low cost, good mobility and fast lifting speed.

[0005] The technical solution of the present invention is to provide a height-adjustable coffee table having the following structure: it includes...

[0006] A tea brewing table includes a tabletop and a frame connected to the bottom of the tabletop. The frame is provided with a sliding groove extending along the length of the frame, and the inner sidewall of the sliding groove is provided with a plurality of slots distributed along the length of the sliding groove.

[0007] At least one set of lifting components, each set of lifting components includes two support rods hinged in the middle in an X shape: a first support rod and a second support rod, the upper end of the first support rod is rotatably connected to the tea brewing table, and the upper end of the second support rod is connected to a sliding rod, the sliding rod being fitted with a clearance in the sliding groove;

[0008] The sliding rod is provided with a sliding part and a locking part distributed sequentially along the length of the sliding rod. The sliding rod can move axially relative to the frame to switch between two states. In the first state, the sliding part slides in conjunction with the slide groove, and the sliding rod can slide along the length of the slide groove, and the height of the tea brewing platform can be adjusted. In the second state, the locking part engages with the locking groove, and the position of the sliding rod on the slide groove is locked, and the height of the tea brewing platform is fixed.

[0009] With the above structure, the lifting coffee table of the present invention has the following advantages compared with the prior art: When the lifting coffee table is raised or lowered, the sliding rod moves axially and the sliding part of the sliding rod is placed in the slide groove. At this time, the sliding rod can slide in the slide groove, and the height of the tea brewing table can be adjusted. When the height of the tea brewing table is adjusted to a suitable height, the sliding rod moves axially again and the stop part of the sliding rod is placed in the slide groove and engaged with the slot on the inner wall of the slide groove. In this way, the position of the sliding rod is locked and the height of the tea brewing table is fixed. The lifting coffee table only needs to move the sliding rod to select the sliding part to slide with the slide groove or select the stop part to engage with the slot to realize the height adjustment and height locking of the tea brewing table. The lifting speed is fast when adjusting the height. The lifting coffee table does not need to be equipped with a telescopic cylinder or gas spring to assist in lifting and locking the table height. Its structure is simple, the production cost is low, and it is easy to carry and move flexibly.

[0010] Preferably, it also includes an elastic element connected to the sliding rod, so that the locking part of the sliding rod always has a tendency to engage with the slot. This elastic element allows the sliding rod to automatically reset after the height of the tea brewing platform is adjusted by moving the sliding rod to allow the sliding part to slide and engage with the slot, thus locking the position of the sliding rod.

[0011] Preferably, the upper end of the second support rod is connected to a sleeve, the sliding rod is fitted with a clearance within the sleeve, and the elastic element is sleeved on the sliding rod, with one end of the elastic element abutting against a radial protrusion on the sliding rod and the other end abutting against the inner wall of the sleeve. This configuration allows the sliding rod to move not only along its axis within the sleeve but also to rotate circumferentially along its axis. Furthermore, the elastic element ensures that the locking part and the slot maintain a locking tendency, facilitating quick locking of the sliding rod's position after the tea tray height is adjusted.

[0012] Preferably, the sliding rod has two symmetrically recessed cuts on its outer side wall, forming a flat sliding portion between the two cuts. The thickness of the sliding portion is smaller than the width of the groove, resulting in a simple structure and easy manufacturing.

[0013] Preferably, one end of the sliding rod is connected to a handle that moves synchronously with the sliding rod. The handle facilitates the movement of the sliding rod; when adjusting the height of the tea brewing table, the user holds the handle and pulls the sliding rod outward, placing the sliding part of the sliding rod into the groove. This allows for easy adjustment of the tea brewing table height, enabling the user to complete the adjustment with one hand, making the operation simple and convenient.

[0014] Preferably, the handle is provided with two protruding limiting protrusions that abut against the bottom of the tabletop: a first limiting protrusion and a second limiting protrusion. When the handle is rotated to the point where the first limiting protrusion abuts against the tabletop, the free end of the handle extends downwards to the bottom of the tea brewing table. When the handle is rotated to the point where the second limiting protrusion abuts against the tabletop, the free end of the handle does not extend downwards beyond the bottom of the tea brewing table. This design allows the user to easily pull out the sliding rod by rotating the handle when adjusting the height of the tea brewing table, as the first limiting protrusion abuts against the tabletop. After adjusting the height, the handle can be rotated to abut against the second limiting protrusion, preventing the free end of the handle from extending downwards beyond the bottom of the tea brewing table and thus concealing the handle to prevent accidental contact.

[0015] Preferably, the lifting components are in two sets, respectively located on both sides of the bottom of the tea brewing table. This arrangement makes the lifting of the tea brewing table more stable and avoids shaking during lifting.

[0016] Preferably, the frame includes two parallel support rods connected to the bottom of the tabletop. Each support rod has a sliding groove, and the inner walls of the two sliding grooves are symmetrically provided with locking slots. The sliding rod has two sets of sliding portions and locking portions corresponding to the sliding grooves and locking slots on the two support rods, respectively. When the sliding rod is pulled outward along the axial direction, the two sets of sliding portions on the sliding rod are respectively located within the two sliding grooves. And when the sliding rod is retracted inward along the axial direction, the two sets of locking portions on the sliding rod are respectively engaged with the locking slots on the two sliding grooves. With this configuration, when the sliding rod is moved, the two sliding portions of the sliding rod can simultaneously slide with the two sliding grooves, and the two locking portions of the sliding rod can simultaneously engage with the locking slots on the two sliding grooves. That is, one sliding rod can achieve the sliding or locking of two sliding grooves, and the sliding rod position is locked relatively firmly, resulting in good structural stability.

[0017] Preferably, reinforcing plates are connected to the two opposing inner sidewalls of the two support rods. Each reinforcing plate has a guide groove with opposite openings and a guide hole for the sliding rod to pass through. Two sliding sleeves are connected to both ends of the sleeve, and these two sleeves are respectively fitted into the two guide grooves with a clearance fit. The addition of these reinforcing plates further improves the stability of the sliding rod's movement, especially the sliding fit between the two ends of the sliding sleeves at the upper end of the second support rod and the guide grooves of the two reinforcing plates, making the sliding rod very stable and smooth during movement.

[0018] Preferably, the lower ends of both the first and second support rods are connected to a base rod. This base rod can replace the bottom support, thus simplifying the structure of the lifting coffee table and making it easier to move. Attached Figure Description

[0019] Figure 1 This is a front structural diagram of a height-adjustable coffee table according to the present invention.

[0020] Figure 2 This is a side view of a height-adjustable coffee table according to the present invention.

[0021] Figure 3 This is a schematic diagram of the back structure of a height-adjustable coffee table according to the present invention.

[0022] Figure 4 This invention relates to a height-adjustable coffee table. Figure 3 A magnified structural diagram of part A in the diagram.

[0023] Figure 5 This is a partial cross-sectional view of a height-adjustable coffee table according to the present invention.

[0024] Figure 6 This is a schematic diagram of the sliding rod assembly structure of a height-adjustable coffee table according to the present invention.

[0025] Figure 7 This is a schematic diagram of the sliding rod of a height-adjustable coffee table according to the present invention.

[0026] As shown in the figure:

[0027] 1. Tea brewing table; 100. Tabletop; 101. Frame; 102. Support rod; 103. Slide groove; 104. Slot; 2. Lifting assembly; 200. First support rod; 201. Second support rod; 202. Base rod; 203. Sleeve; 204. Sliding sleeve; 3. Sliding rod; 300. Sliding part; 301. Stopping part; 302. Radial protrusion; 303. Cutout; 4. Elastic element; 5. Handle; 500. First limiting protrusion; 501. Second limiting protrusion; 6. Reinforcing plate; 600. Guide hole; 601. Guide groove. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0029] See Figures 1 to 7 As shown;

[0030] This invention discloses a height-adjustable coffee table, the structure of which includes a tea brewing platform 1 and at least one set of lifting components 2. The tea brewing platform 1 includes a tabletop 100 and a frame 101 connected to the bottom of the tabletop 100. The frame 101 is provided with a sliding groove 103 extending along the length direction of the frame 101, and the inner sidewall of the sliding groove 103 is provided with a plurality of slots 104 distributed along the length direction of the sliding groove 103. In this embodiment, the tabletop 100 is a wooden or steel flat plate, and the frame 101 includes two parallel support rods 102 connected to the bottom of the tabletop 101 and a crossbar connecting the two support rods 102. Each of the two support rods 102 is provided with The sliding groove 103 has two grooves 104 symmetrically arranged on its inner walls. Each groove 104 is a circular hole communicating with the sliding groove 103. Each lifting assembly 2 includes two X-shaped support rods hinged in the middle: a first support rod 200 and a second support rod 201. The upper end of the first support rod 200 is rotatably connected to the frame 101 of the tea table 1. The upper end of the second support rod 201 is connected to a sliding rod 3, which fits loosely within the sliding groove 103. When the sliding rod 3 slides along the length of the sliding groove 103, it drives the first support rod 200 and the second support rod 201 to rotate, thereby adjusting the height of the tea table 1. In this embodiment, there are two lifting assemblies 2, respectively located on both sides of the bottom of the tea table 1. Additionally, the lower ends of both the first support rod 200 and the second support rod 201 are connected to a base rod 202. The base rod 202 can replace the base, making the structure of the lifting tea table simpler and easier to move.

[0031] See you again Figures 3-6As shown, the sliding rod 3 is provided with a sliding part 300 and a locking part 301 distributed sequentially along the length direction of the sliding rod 3. In this embodiment, two concave cuts 303 are symmetrically provided on the outer side wall of the sliding rod 3, and the two cuts 303 form a flat sliding part 300. The sliding rod 3 is axially movable relative to the frame 101, which is used to switch the sliding rod 3 between two states. In the first state, the sliding part 300 slides in conjunction with the slide groove 103, and the sliding rod 3 can slide along the length direction of the slide groove 103, and the height of the tea brewing table 1 can be adjusted. In the second state, the locking part 301 engages with the locking groove 104, the position of the sliding rod 3 on the slide groove 103 is locked, and the height of the tea brewing table 1 is fixed. When the lifting coffee table is raised or lowered, the sliding rod 3 moves axially and the sliding part 300 of the sliding rod 3 is placed in the slide groove 103. At this time, the sliding rod 3 can slide in the slide groove 103, and the height of the tea brewing table 1 can be adjusted. When the height of the tea brewing table 1 is adjusted to a suitable height, the sliding rod 3 moves axially again and the stop part 301 of the sliding rod 3 is placed in the slide groove 103 and engaged with the slot 104 on the inner wall of the slide groove 103. In this way, the position of the sliding rod 3 is locked, and the height of the tea brewing table 1 is fixed. The lifting coffee table only requires moving the sliding rod 3 to select the sliding part 300 to slide with the slide groove 103 or to select the stop part 301 to engage with the slot 104 to achieve the height adjustment and height locking of the tea brewing table 1. The height adjustment is fast. The lifting coffee table does not require a telescopic cylinder or gas spring to assist in raising and lowering and locking the height of the tabletop 100. Its structure is simple, the production cost is low, and it is easy to carry and move flexibly.

[0032] See you again Figures 5-6 As shown in the figure, as an embodiment of the present invention, the lifting coffee table also includes an elastic element 4. In this embodiment, the elastic element 4 is a spring. The elastic element 4 is connected to the sliding rod 3, so that the stop portion 301 of the sliding rod 3 always has a tendency to engage with the slot 104. Specifically, the upper end of the second support rod 201 is connected to a sleeve 203. The sliding rod 3 is fitted with a clearance within the sleeve 203. The elastic element 4 is sleeved on the sliding rod 3, and one end of the elastic element 4 abuts against the radial protrusion 302 on the sliding rod 3, while the other end of the elastic element 4 abuts against the inner wall of the sleeve 203. The radial protrusion 302 is a limiting post radially connected to the sliding rod 3. The sliding rod 3 can not only move along the axis within the sleeve 203, but also rotate circumferentially along the axis. The elastic element 4 always keeps the stop portion 301 engaged with the slot 104, which facilitates the quick engagement and locking of the position of the sliding rod 3 after the height of the tea table 1 is adjusted.

[0033] See you again Figure 7As shown, in this embodiment, the sliding rod 3 is provided with two sets of sliding portions 300 and locking portions 301 corresponding to the sliding grooves 103 and locking slots 104 on the two support rods 102, respectively. When the sliding rod 3 is pulled outward along the axial direction, the two sets of sliding portions 300 on the sliding rod 3 are respectively located in the two sliding grooves 103; and when the sliding rod 3 is retracted inward along the axial direction, the two sets of locking portions 301 on the sliding rod 3 are respectively locked in the locking slots 104 of the two sliding grooves 103. When the sliding rod 3 is moved, the two sliding portions 300 of the sliding rod 3 can simultaneously slide with the two sliding grooves 103, and the two locking portions 301 of the sliding rod 3 can simultaneously lock in the locking slots 104 on the two sliding grooves 103. That is, one sliding rod 3 realizes the sliding or locking of two sliding grooves 103, and the position of the sliding rod 3 is locked relatively firmly, with good structural stability.

[0034] See you again Figure 3 As shown, one end of the sliding rod 3 is connected to a handle 5 that moves synchronously with the sliding rod 3. The handle 5 has two protruding limiting protrusions that abut against the bottom of the tabletop 100: a first limiting protrusion 500 and a second limiting protrusion 501. When the handle 5 is rotated until the first limiting protrusion 500 abuts against the tabletop 100, the free end of the handle 5 extends downwards beyond the bottom of the tea brewing table 1. When the handle 5 is rotated until the second limiting protrusion 501 abuts against the tabletop 100, the free end of the handle 5 does not extend downwards beyond the bottom of the tea brewing table 1. The handle 5 facilitates the movement of the sliding rod 3. When adjusting the height of the tea brewing table 1, the user holds the handle 5 and pulls the sliding rod 3 outwards, placing the sliding part 300 of the sliding rod 3 into the groove 103. This allows for easy adjustment of the height of the tea brewing table 1, enabling the user to adjust the height of the tea brewing table 1 with one hand. The operation is simple and convenient. In addition, when adjusting the height of the tea brewing table 1, rotating the handle 5 causes the first limiting protrusion 500 to abut against the tabletop 100. At this time, the sliding part 300 of the sliding rod 3 is aligned with the sliding groove 103, and the free end of the handle 5 extends downward to the bottom of the tea brewing table 1. This allows the user to easily grasp the handle 5 and pull the sliding rod 3 outward. After the height of the tea brewing table 1 is adjusted, the handle 5 can be rotated to abut against the tabletop 100. In this way, the free end of the handle 5 does not extend downward beyond the bottom of the tea brewing table 1, thus hiding the handle 5 and preventing the user from accidentally touching it.

[0035] See you again Figure 6 As shown, reinforcing plates 6 are connected to the two opposing inner sidewalls of the two support rods 102. Each reinforcing plate 6 has a guide groove 601 with opposite openings, and each reinforcing plate 6 has a guide hole 600 for the sliding rod 3 to pass through. Two sliding sleeves 204 are connected to both ends of the sleeve 203, and the two sliding sleeves 204 are respectively fitted into the two guide grooves 601 with a clearance fit. In this embodiment, the sliding sleeves 204 are generally made of plastic, and their sliding within the guide grooves 601 of the reinforcing plate 6 results in low friction, thus making the sliding rod 3 very stable and smooth during sliding.

[0036] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A height-adjustable coffee table, comprising: A tea brewing table includes a tabletop and a frame connected to the bottom of the tabletop. The frame is provided with a sliding groove extending along the length of the frame, and the inner sidewall of the sliding groove is provided with a plurality of slots distributed along the length of the sliding groove. At least one set of lifting components, each set of lifting components includes two support rods hinged in the middle in an X shape: a first support rod and a second support rod. The upper end of the first support rod is rotatably connected to the tea brewing table. The upper end of the second support rod is connected to a sleeve. A sliding rod is fitted inside the sleeve with a clearance fit. The sliding rod is fitted with a clearance fit in the sliding groove. The sliding rod is provided with sliding parts and locking parts distributed sequentially along its length. The sliding rod is axially movable relative to the frame, allowing it to switch between two states. In the first state, the sliding part slides into the slide groove, the sliding rod can slide along the length of the slide groove, and the height of the tea brewing table can be adjusted; in the second state, the locking part engages with the locking groove, the position of the sliding rod on the slide groove is locked, and the height of the tea brewing table is fixed. An elastic element is connected to a sliding rod, so that the locking part of the sliding rod always has a tendency to engage with the slot; the elastic element is sleeved on the sliding rod, and one end of the elastic element abuts against the radial protrusion on the sliding rod, and the other end of the elastic element abuts against the inner wall of the sleeve. The sliding rod has two symmetrically recessed cuts on its outer side wall, and a flat sliding part is formed between the two cuts.

2. The height-adjustable coffee table according to claim 1, characterized in that: One end of the sliding rod is connected to a handle that moves synchronously with the sliding rod.

3. A height-adjustable coffee table according to claim 2, characterized in that: The handle is provided with two protruding limiting protrusions that can abut against the bottom of the tabletop: a first limiting protrusion and a second limiting protrusion; when the handle is rotated to the point where the first limiting protrusion abuts against the tabletop, the free end of the handle extends downwards to the bottom of the tea brewing table; when the handle is rotated to the point where the second limiting protrusion abuts against the tabletop, the free end of the handle does not extend downwards beyond the bottom of the tea brewing table.

4. A height-adjustable coffee table according to claim 2, characterized in that: The lifting components consist of two sets, which are respectively located on both sides of the bottom of the tea brewing table.

5. A height-adjustable coffee table according to claim 1, characterized in that: The frame includes two parallel support rods connected to the bottom of the tabletop. Each support rod has a sliding groove, and the inner walls of the two sliding grooves are symmetrically provided with slots. The sliding rod has two sets of sliding parts and locking parts corresponding to the sliding grooves and slots on the two support rods, respectively. When the sliding rod is pulled outward along the axial direction, the two sets of sliding parts on the sliding rod are respectively located in the two sliding grooves. And when the sliding rod is retracted inward along the axial direction, the two sets of locking parts on the sliding rod are respectively engaged in the slots of the two sliding grooves.

6. A height-adjustable coffee table according to claim 5, characterized in that: The two support rods are each connected to a reinforcing plate on their two opposite inner sidewalls. Both reinforcing plates are provided with guide grooves with opposite openings, and both reinforcing plates are provided with guide holes for the sliding rod to pass through. The two ends of the sleeve are connected to two sliding sleeves, which are respectively fitted into the two guide grooves with clearance.

7. A height-adjustable coffee table according to claim 1, characterized in that: Both the lower ends of the first and second support rods are connected to a base rod.

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