Lifting table leg and lifting table

Abstract

The utility model provides a lifting table leg and a lifting table, and belongs to the technical field of lifting tables, the lifting table leg comprises a leg tube assembly, the leg tube assembly comprises an inner tube and an outer tube, the inner tube is connected with the outer tube, and the inner tube is allowed to move relative to the outer tube; the rolling wheel assembly is movably installed at the bottom of the outer pipe, and the rolling wheel assembly is allowed to stretch out of the bottom of the outer pipe or retract into the outer pipe; the stroke position of the inner pipe relative to the outer pipe comprises a contact position and a lower limit position, and an ejection interval is formed between the contact position and the lower limit position; the roller assembly is hidden in the outer pipe when the inner pipe is located at the contact position, and extends out of the bottom of the outer pipe when the inner pipe is located at the lower limit position. The table has the advantages that the idler wheel assemblies are hidden in the outer pipes under the general condition, when the inner pipes descend to the lower limit position, the idler wheel assemblies can be ejected out, and therefore the table body is easy to move and does not need to be carried manually, and the convenience of carrying the table is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lifting tables and relates to a lifting table leg and a lifting table. Background Art

[0002] As modern work and lifestyles change, people's demand for a healthy office environment is growing. In recent years, electric height-adjustable desks have become popular because they can adjust the height and help users alternate between standing and sitting to work, effectively alleviating the physical discomfort caused by maintaining the same posture for a long time. However, traditional electric height-adjustable desks are usually designed to be fixed and difficult to move easily once installed. This design has limitations for offices or homes that need to frequently adjust the layout of the work area.

[0003] In office and home environments, users may need to regularly change the position of their desks according to different activities or space requirements. For women, children or users with limited physical strength, traditional fixed lift tables are particularly inconvenient to move. Not only is the operation laborious, but there are also safety hazards, such as possible injuries or furniture damage during transportation. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems in the prior art and to provide a lifting table leg and a lifting table.

[0005] The purpose of the utility model can be achieved through the following technical solutions: a lifting table leg, comprising:

[0006] A leg tube assembly, the leg tube assembly comprising an inner tube and an outer tube, the inner tube being connected to the outer tube, and the inner tube being allowed to move relative to the outer tube;

[0007] A roller assembly, the roller assembly is movably mounted on the bottom of the outer tube, and the roller assembly is allowed to extend out of the bottom of the outer tube or retract into the outer tube;

[0008] The stroke position of the inner tube relative to the outer tube includes a contact position and a lower limit position, and an ejection interval is formed between the contact position and the lower limit position; when the inner tube is located at the contact position, the roller assembly is hidden in the outer tube, and when the inner tube is located at the lower limit position, the roller assembly extends out of the bottom of the outer tube, and when the inner tube is located in the ejection interval and moves toward the lower limit position, the inner tube pushes the roller assembly to extend.

[0009] Preferably, at least one top block is disposed in the outer tube, one end of the top block is in contact with the roller assembly, and when the inner tube is in the ejection section, the bottom of the inner tube is in contact with the other end of the top block.

[0010] Preferably, a guide plate is fixedly installed inside the outer tube, the guide plate is provided with guide holes, the number of the guide holes is the same as the number of the top blocks and is arranged in a one-to-one correspondence, and the top blocks can slidably pass through the guide holes.

[0011] Preferably, the roller assembly includes a roller fixing plate, on which at least one roller mounting frame is fixedly mounted, and the roller mounting frame is provided with a rotatable wheel, one end of the top block is abutted and connected to the roller fixing plate, and when the inner tube is located at the lower limit position, the wheel extends out of the bottom of the outer tube.

[0012] Preferably, the bottom port of the outer tube has a foot, the foot is provided with a through hole, the number of the through holes is the same as the number of the wheels and is arranged in a one-to-one correspondence, and the wheels are allowed to extend out of the bottom of the outer tube through the through holes.

[0013] Preferably, the bottom of the inner tube has a friction plate, and when the inner tube is in the ejection section, the other end of the ejection block is in contact with and connected to the friction plate.

[0014] Preferably, it further comprises an auxiliary leg, one end of which is fixedly connected to the outer tube and the two form an inverted Y-shaped structure.

[0015] A lifting table is also provided, comprising at least two lifting table legs.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. In general, the roller assembly is hidden in the outer tube. When the inner tube drops to the lower limit position, the roller assembly can be pushed out, making it easy to move the table without manual handling, which greatly improves the convenience of moving the table.

[0018] 2. The main function of the guide plate is to provide a guide path for the top block, ensuring that the top block can slide smoothly along the preset track of the guide hole when it is subjected to the force transmitted by the inner tube, instead of being offset or stuck, thereby ensuring the smooth extension and retraction of the roller assembly.

[0019] 3. The feet also provide a channel for the wheels to extend and retract. When the inner tube drops to the lower limit position, the wheels can be pushed out, and the wheels extend through the through holes on the feet and contact the ground. At this time, the table can be moved by the wheels.

[0020] 4. The bottom of the outer tube (foot) and the bottom of the auxiliary leg establish a support point with the ground, that is, each lifting table leg has two support points with the ground. The advantage of this structure is that the leg tube assembly is inclined, and the moving direction of the inner tube is also inclined, so when the inner tube descends in the ejection interval and ejects the roller assembly, the table leg uses the auxiliary leg and the wheel as the fulcrum. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a partial structural schematic diagram of the lifting table leg of the utility model.

[0022] Figure 2 This is a structural exploded view of the lifting table legs of the utility model.

[0023] Figure 3 It is a schematic diagram of the overall structure of the lifting table leg of the utility model.

[0024] Figure 4 It is a structural schematic diagram of the lifting table of the utility model.

[0025] In the figure, 100, leg tube assembly; 110, inner tube; 120, outer tube; 130, top block; 140, guide plate; 141, guide hole; 150, foot; 151, through hole; 160, friction plate; 200, roller assembly; 210, roller fixing plate; 220, roller mounting frame; 230, wheel; 300, auxiliary support leg. DETAILED DESCRIPTION

[0026] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0027] like Figure 1-3 As shown, a lifting table leg comprises: a leg tube assembly 100, the leg tube assembly 100 comprises an inner tube 110 and an outer tube 120, the inner tube 110 is connected to the outer tube 120, and the inner tube 110 is allowed to move relative to the outer tube 120; a roller assembly 200, the roller assembly 200 is movably installed at the bottom of the outer tube 120, and the roller assembly 200 is allowed to extend out of the bottom of the outer tube 120 or retract into the outer tube 120; the stroke position of the inner tube 110 relative to the outer tube 120 comprises a contact position and a lower limit position, and an ejection interval is formed between the contact position and the lower limit position; when the inner tube 110 is located at the contact position, the roller assembly 200 is hidden in the outer tube 120, when the inner tube 110 is located at the lower limit position, the roller assembly 200 extends out of the bottom of the outer tube 120, and when the inner tube 110 is located in the ejection interval and moves toward the lower limit position, the inner tube 110 pushes the roller assembly 200 to extend.

[0028] The leg tube assembly 100 is actually similar to the existing lifting leg tube. The leg tube assembly 100 is composed of two layers of inner and outer tubes. The inner tube 110 can slide axially along the outer tube 120. The inner tube 110 is connected to the table frame, and the outer tube 120 remains stationary relative to the ground. The inner tube 110 can change the height of the table frame by lifting and sliding. The roller assembly 200 is installed at the bottom of the outer tube 120 of the lifting table leg, and the roller assembly 200 is generally hidden in the outer tube 120. When the lifting table needs to be moved, the inner tube 110 can push the roller assembly 200 out to facilitate the movement of the lifting table.

[0029] The inner tube 110 has two key positions relative to the outer tube 120, namely the contact position and the lower limit position. The contact position refers to the position where the inner tube 110 drops to just contact the top block 130, at which time the roller is completely hidden; the lower limit position is when the inner tube 110 drops to the limit position, at which time the roller assembly 200 is in an extended state. The ejection interval is the area between the contact position and the lower limit position. In this interval, as the inner tube 110 moves downward, it will push the roller assembly 200 to gradually extend out of the outer tube 120. It should be supplemented that when the inner tube 110 reaches the lower limit position, the inner tube 110 firmly presses against the roller assembly 200 to keep it in an extended state. When the lifting table is moved, the inner tube 110 rises, and the roller assembly 200 retracts into the outer tube 120 after losing the constraint of the inner tube 110.

[0030] The lifting table leg controls the position of the roller assembly 200 by the extension and contraction of the inner tube 110. In general, the roller assembly 200 is hidden in the outer tube 120. When the inner tube 110 is lowered to the lower limit position, the roller assembly 200 can be pushed out, so that the table body is easy to move without manual handling, which greatly improves the convenience of carrying the table.

[0031] Based on the above embodiment, at least one top block 130 is disposed in the outer tube 120 , one end of the top block 130 is in contact with the roller assembly 200 , and the bottom of the inner tube 110 is in contact with the other end of the top block 130 when the inner tube 110 is in the ejection section.

[0032] The top block 130 is disposed between the bottom of the inner tube 110 and the roller assembly 200 . The top block 130 is designed to transmit the ejection force when the inner tube 110 descends, thereby controlling the extension of the roller assembly 200 .

[0033] When the inner tube 110 is at the contact position, the bottom of the inner tube 110 contacts one end of the top block 130, and the roller assembly 200 contacts the other end of the top block 130. At this time, the roller is completely hidden inside the outer tube 120, and the table is in a stable state. When the inner tube 110 starts to move downward from the contact position, the bottom of the inner tube 110 pushes the roller assembly 200 through the top block 130. This process is gradual. As the inner tube 110 continues to move downward, the extension of the roller assembly 200 also increases. When the inner tube 110 reaches the lower limit position, the bottom of the inner tube 110 firmly presses against the top block 130 to ensure that the roller assembly 200 remains in the extended state. At this time, the table can be moved conveniently. When the inner tube 110 is not within the range of the ejection interval, it does not contact the top block 130.

[0034] Based on the above embodiment, a guide plate 140 is fixedly installed in the outer tube 120 , and the guide plate 140 is provided with guide holes 141 . The number of guide holes 141 is the same as the number of top blocks 130 and is arranged one-to-one. The top blocks 130 can slide through the guide holes 141 .

[0035] The main function of the guide plate 140 is to provide a guide path for the top block 130, ensuring that the top block 130 can slide smoothly along the preset track of the guide hole 141 when bearing the force transmitted by the inner tube 110, rather than being offset or stuck, thereby ensuring the smooth extension and retraction of the roller assembly 200. The number of guide holes 141 matches the number of top blocks 130, and each top block 130 corresponds to a guide hole 141, so that each top block 130 can be ensured to have an independent and accurate guide path when moving.

[0036] like Figure 1-2 As shown, on the basis of the above embodiment, the roller assembly 200 includes a roller fixing plate 210, on which at least one roller mounting frame 220 is fixedly mounted, the roller mounting frame 220 is provided with a rotatable wheel 230, one end of the top block 130 is abutted against and connected to the roller fixing plate 210, and when the inner tube 110 is located at the lower limit position, the wheel 230 extends out of the bottom of the outer tube 120.

[0037] The design of the roller assembly 200 is the core part of the lifting table leg to realize the moving function. The roller fixing plate 210 is used as the basic structure to fix the roller mounting frame 220. The roller mounting frame 220 is equipped with rotatable wheels 230, which are the key components for the table to move. The top block 130 is connected to the roller fixing plate 210 in abutting manner, and each top block 130 corresponds to each roller mounting frame 220, so that the top thrust can be evenly applied to each roller mounting frame 220.

[0038] like Figure 1-2As shown, based on the above embodiment, the bottom port of the outer tube 120 has a foot 150, and the foot 150 is provided with a through hole 151. The number of the through holes 151 is the same as the number of the wheels 230 and is arranged one-to-one. The wheels 230 are allowed to extend out of the bottom of the outer tube 120 through the through holes 151.

[0039] The foot 150 is actually a sealing structure at the bottom of the outer tube 120. In general, the foot 150 contacts the ground to support the outer tube 120. The foot 150 also provides a channel for the wheels 230 to extend and retract. When the inner tube 110 drops to the lower limit position, the wheels 230 can be pushed out, and the wheels 230 extend through the through holes 151 on the foot 150 and contact the ground. At this time, the table can be moved by the wheels 230.

[0040] On the basis of the above embodiment, the bottom of the inner tube 110 has a friction plate 160 , and the other end of the ejection block 130 is in contact with and connected to the friction plate 160 when the inner tube 110 is in the ejection section.

[0041] like Figure 1-3 As shown, on the basis of the above embodiment, an auxiliary leg 300 is further included, one end of the auxiliary leg 300 is fixedly connected to the outer tube 120 and the two form an inverted Y-shaped structure.

[0042] The actual structure of the table leg is not an I-shaped structure, but an inverted Y-shaped structure. The bottom of the outer tube 120 (foot 150) and the bottom of the auxiliary leg 300 establish a support point with the ground, that is, each lifting table leg has two support points with the ground. The advantage of this structure is that the leg tube assembly 100 is inclined, and the moving direction of the inner tube 110 is also inclined, so when the inner tube 110 descends in the ejection interval and ejects the roller assembly 200, the table leg uses the auxiliary leg 300 and the wheel 230 as a fulcrum.

[0043] like Figure 1-4 As shown, based on the above embodiment, a lifting table is also provided, comprising at least two lifting table legs. Each table leg comprises an inner tube 110, an outer tube 120, a roller assembly 200, a top block 130 and an auxiliary bracket. The plurality of lifting table legs jointly support the table frame and move synchronously to ensure the stability and balance of the table frame during the lifting process.

[0044] The lifting table is usually in a fixed state, that is, the inner tube 110 is allowed to move above the ejection interval to adjust the height of the table frame, and the roller assembly 200 is in a hidden state. When the table frame needs to be moved, the inner tube 110 moves to the lower limit position to eject the wheel 230, ensuring that the table frame can be moved by the wheel 230.

[0045] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0046] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A lifting table leg, characterized in that: include: A leg tube assembly (100), the leg tube assembly (100) comprising an inner tube (110) and an outer tube (120), the inner tube (110) being connected to the outer tube (120), and the inner tube (110) being allowed to move relative to the outer tube (120); a roller assembly (200), the roller assembly (200) being movably mounted on the bottom of the outer tube (120), the roller assembly (200) being allowed to extend out of the bottom of the outer tube (120) or to retract into the outer tube (120); The stroke position of the inner tube (110) relative to the outer tube (120) includes a contact position and a lower limit position, and an ejection interval is formed between the contact position and the lower limit position; when the inner tube (110) is located at the contact position, the roller assembly (200) is hidden in the outer tube (120); when the inner tube (110) is located at the lower limit position, the roller assembly (200) extends out of the bottom of the outer tube (120); when the inner tube (110) is located in the ejection interval and moves toward the lower limit position, the inner tube (110) pushes the roller assembly (200) to extend.

2. A lifting table leg according to claim 1, characterized in that: At least one ejection block (130) is disposed in the outer tube (120), one end of the ejection block (130) is in contact with the roller assembly (200), and when the inner tube (110) is in the ejection section, the bottom of the inner tube (110) is in contact with the other end of the ejection block (130).

3. A lifting table leg according to claim 2, characterized in that: A guide plate (140) is fixedly installed inside the outer tube (120), and the guide plate (140) is provided with guide holes (141). The number of the guide holes (141) is the same as the number of the top blocks (130) and is arranged in a one-to-one correspondence. The top blocks (130) can slidably pass through the guide holes (141).

4. A lifting table leg according to claim 2, characterized in that: The roller assembly (200) comprises a roller fixing plate (210), on which at least one roller mounting frame (220) is fixedly mounted, and the roller mounting frame (220) is provided with a rotatable wheel (230), one end of the top block (130) is abuttingly connected to the roller fixing plate (210), and when the inner tube (110) is located at the lower limit position, the wheel (230) extends out of the bottom of the outer tube (120).

5. A lifting table leg according to claim 4, characterized in that: The bottom port of the outer tube (120) has a foot (150), and the foot (150) is provided with a through hole (151). The number of the through holes (151) is the same as the number of the wheels (230) and is arranged in a one-to-one correspondence. The wheels (230) are allowed to extend out of the bottom of the outer tube (120) through the through holes (151).

6. A lifting table leg according to claim 2, characterized in that: The bottom of the inner tube (110) is provided with a friction plate (160), and when the inner tube (110) is in the ejection section, the other end of the ejection block (130) is in contact with and connected to the friction plate (160).

7. The lifting table leg according to claim 1, characterized in that: It also includes an auxiliary support leg (300), one end of which is fixedly connected to the outer tube (120) and the two form an inverted Y-shaped structure.

8. A lifting table, characterized in that: The utility model comprises at least two lifting table legs according to any one of claims 1 to 7.

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