Hidden lifting transmission structure

Abstract

The hidden type lifting transmission structure comprises a transmission rod, a pull-down pipe, a pair of lifting assemblies arranged oppositely and a pair of pull-down plate blocking pieces, the transmission rod is located in the pull-down pipe, the pull-down plate blocking pieces are fixed to the two sides of the pull-down pipe, openings are formed in the pull-down plate blocking pieces, the two ends of the transmission rod penetrate through the openings and are rotationally connected with the openings, and the pull-down plate blocking pieces are fixed to the pull-down pipe. The pair of lifting assemblies is located on the outer sides of the pair of lower pulling plate blocking pieces and arranged in table legs on the two sides of the study table respectively. A driving bin is arranged at the top of the lifting assembly and internally provided with a horizontally-arranged connecting sleeve, the outer wall of the connecting sleeve is fixedly sleeved with a first bevel gear, one end of the connecting sleeve is fixedly connected with a transmission rod, the other end of the connecting sleeve is detachably connected with an external rocker arm, the lower portion of the first bevel gear is perpendicularly meshed with a second bevel gear, and the second bevel gear is sleeved with a lead screw. And the screw rod is screwed in the lifting stand column. The service life of the lifting transmission structure is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of study tables, in particular to a hidden lifting transmission structure. Background Art

[0002] A study table is a piece of furniture specially designed for study, work or reading and writing. It usually consists of a flat tabletop and a structure that supports the tabletop to provide a stable working area. In order to facilitate the adjustment of the overall height of the study table, the current study table is provided with a lifting transmission structure. However, the lifting transmission structure in the prior art is mostly exposed to the outside of the basic structure of the study table. During the lifting process, the transmission rod in the lifting transmission mechanism will rotate accordingly, so it is easy to be involved in external objects, posing a safety hazard; the exposure of the lifting transmission mechanism is also easy to cause damage, which seriously affects the service life of the lifting function of the study table. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a hidden lifting transmission structure, which is used to hide the lifting transmission structure inside the basic structure of the study table, thereby extending the service life of the lifting transmission structure, preventing people from contacting the transmission rod, and improving the safety of the lifting transmission structure.

[0004] To achieve the above purpose, the utility model provides the following technical solutions: a hidden lifting transmission structure, comprising a transmission rod, a pull-down tube, a pair of lifting components and a pair of pull-down plate baffles arranged opposite to each other, the transmission rod is located inside the pull-down tube, a pair of the pull-down plate baffles are fixed on both sides of the pull-down tube, an opening is provided in the pull-down plate baffle, both ends of the transmission rod pass through the opening and are rotatably connected to the opening, a pair of the lifting components are located outside the pair of the pull-down plate baffles, and a pair of the lifting components are respectively arranged in the table legs on both sides of the study table;

[0005] A driving bin is provided on the top of the lifting assembly, a lifting column is provided below the driving bin, a horizontally arranged connecting sleeve is provided in the driving bin, a vertically placed first bevel gear is fixedly sleeved on the outer wall of the connecting sleeve, one end of the connecting sleeve is fixedly connected to the transmission rod, and the other end of the connecting sleeve is detachably connected to an external rocker arm, a second bevel gear is vertically meshed and connected below the first bevel gear, the second bevel gear is fixedly sleeved on a screw rod, and the screw rod is screwed in the lifting column;

[0006] When the external crank handle is shaken, the transmission rod and the screw rod are driven to rotate, thereby driving the drive bin to rise and fall in the vertical direction.

[0007] Furthermore, the opening is in a gourd shape.

[0008] Furthermore, a rotating gasket is provided in the upper closing portion of the gourd-shaped opening, the rotating gasket is interference fit with the upper closing portion of the opening, and both ends of the transmission rod pass through the rotating gasket and are rotatably connected to the rotating gasket.

[0009] Furthermore, a limit pin is provided on the outer side of the rotating gasket, and both ends of the transmission rod pass through the limit pin and are rotatably connected to the limit pin.

[0010] Furthermore, the axis of the transmission rod coincides with the center of the pull-down tube.

[0011] Furthermore, the top tube wall of the pull-down tube is higher than the upper closing lower wall of the gourd-shaped opening.

[0012] Beneficial effects of the utility model:

[0013] The utility model arranges the transmission rod inside the pull-down tube and the lifting assembly inside the table leg, thereby realizing overall hiding of the lifting transmission structure and avoiding direct exposure to the external environment, effectively extending the service life of the transmission rod and the lifting assembly. At the same time, the lifting transmission structure is integrated inside the basic structure of the study table, which not only improves the overall integration of the study table and reduces the occupied volume of the study table, but also avoids people from contacting the transmission rod, thereby improving the safety of the lifting transmission structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an exploded view of the hidden lifting transmission structure in the utility model;

[0015] Figure 2 It is a schematic diagram of the combined structure of the hidden lifting transmission structure in the utility model;

[0016] Figure 3 It is an enlarged structural schematic diagram of A in the utility model;

[0017] Figure 4 It is an internal sectional view of the lifting component in the utility model.

[0018] Figure numerals: 1. Transmission rod; 2. Pull-down tube; 3. Lifting assembly; 31. Drive bin; 32. Lifting column; 33. Connecting sleeve; 34. First bevel gear; 35. Second bevel gear; 36. Screw rod; 4. Pull-down plate baffle; 5. Rotating gasket; 6. Limiting pin. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The same parts are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom surface" and "top surface", "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0020] like Figure 1 and Figure 2 As shown, a hidden lifting transmission structure of the present embodiment comprises a transmission rod 1, a pull-down tube 2, a pair of lifting components 3 and a pair of pull-down plate baffles 4 arranged opposite to each other, the transmission rod 1 is located inside the pull-down tube 2, a pair of pull-down plate baffles 4 are fixed on both sides of the pull-down tube 2, an opening is arranged inside the pull-down plate baffle 4, both ends of the transmission rod 1 pass through the opening and are rotatably connected to the opening, a pair of lifting components 3 are located outside the pair of pull-down plate baffles 4, and a pair of lifting components 3 are respectively arranged in the table legs on both sides of the study table;

[0021] like Figure 4 As shown, a driving bin 31 is provided on the top of the lifting assembly 3, a lifting column 32 is provided below the driving bin 31, a horizontally arranged connecting sleeve 33 is provided inside the driving bin 31, a vertically placed first bevel gear 34 is fixedly sleeved on the outer wall of the connecting sleeve 33, one end of the connecting sleeve 33 is fixedly connected to the transmission rod 1, and the other end of the connecting sleeve 33 is detachably connected to the external rocker arm, a second bevel gear 35 is vertically meshed and connected below the first bevel gear 34, the second bevel gear 35 is fixedly sleeved on a screw rod 36, and the screw rod 36 is screwed in the lifting column 32;

[0022] When the external crank handle is shaken, the transmission rod 1 and the screw rod 36 are driven to rotate, driving the drive bin 31 to rise and fall in the vertical direction.

[0023] Specifically, in the present embodiment, the transmission rod 1 is arranged inside the pull-down tube 2, and the lifting assembly 3 is arranged inside the table leg, so that the lifting transmission structure is overall hidden and avoided from being directly exposed to the external environment, thereby effectively extending the service life of the transmission rod 1 and the lifting assembly 3. At the same time, the lifting transmission structure is integrated inside the basic structure of the study table, thereby improving the overall integration of the study table, reducing the occupied volume of the study table, preventing people from contacting the transmission rod 1, and improving the safety of the lifting transmission structure.

[0024] Preferably, the opening is in the shape of a gourd.

[0025] Specifically, in this embodiment, by setting the shape of the opening to be gourd-shaped, the transmission rod 1 can be inserted from the lower opening of the gourd-shaped opening when installed inside the pull-down tube 2, which facilitates the installation of the transmission rod 1.

[0026] Preferably, a rotating gasket 5 is provided in the upper closing portion of the gourd-shaped opening, the rotating gasket 5 is interference fit with the upper closing portion of the opening, and both ends of the transmission rod 1 pass through the rotating gasket 5 and are rotatably connected with the rotating gasket 5 .

[0027] Specifically, in this embodiment, by providing the rotating gasket 5 , the wear between the transmission rod 1 and the pull-down plate baffle 4 can be reduced, thereby extending the service life of the transmission rod 1 .

[0028] Preferably, Figure 4 As shown, a limit pin 6 is provided on the outer side of the rotating gasket 5 , and both ends of the transmission rod 1 penetrate the limit pin 6 and are rotatably connected with the limit pin 6 .

[0029] Specifically, in this embodiment, by providing the limiting latch 6, the rotating gasket 5 can be assisted to realize the rotation connection of the transmission rod 1 in the opening, thereby improving the structural stability of the transmission rod 1 when rotating.

[0030] Preferably, the axis of the transmission rod 1 coincides with the center of the pull-down tube 2 .

[0031] Specifically, in this embodiment, by arranging the axis center of the transmission rod 1 to coincide with the center of the pull-down tube 2, sufficient space is left between the transmission rod 1 and the inside of the pull-down tube 2 so that the transmission rod 1 will not hit the inner wall of the pull-down tube 2 after being deformed and twisted, thereby improving the safety during lifting transmission.

[0032] Preferably, the top tube wall of the pull-down tube 2 is higher than the upper closing lower wall of the gourd-shaped opening.

[0033] Specifically, in this embodiment, by designing the top tube wall of the pull-down tube 2 to be higher than the upper closing lower wall of the gourd-shaped opening, the transmission rod 1 will not touch the pull-down tube 2 on the inner side of the pull-down plate baffle 4 when installed in the gourd-shaped opening, thereby avoiding obstruction of installation.

[0034] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. A hidden lifting transmission structure, characterized in that: The learning table comprises a transmission rod (1), a pull-down tube (2), a pair of lifting components (3) arranged opposite to each other, and a pair of pull-down plate baffles (4), wherein the transmission rod (1) is located inside the pull-down tube (2), the pair of pull-down plate baffles (4) are fixed on both sides of the pull-down tube (2), an opening is provided inside the pull-down plate baffle (4), both ends of the transmission rod (1) pass through the opening and are rotatably connected to the opening, the pair of lifting components (3) are located outside the pair of pull-down plate baffles (4), and the pair of lifting components (3) are respectively arranged in the table legs on both sides of the learning table; The top of the lifting assembly (3) is provided with a driving bin (31), a lifting column (32) is provided below the driving bin (31), a horizontally arranged connecting sleeve (33) is provided inside the driving bin (31), a vertically placed first bevel gear (34) is fixedly sleeved on the outer wall of the connecting sleeve (33), one end of the connecting sleeve (33) is fixedly connected to the transmission rod (1), and the other end of the connecting sleeve (33) is detachably connected to an external rocker arm, a second bevel gear (35) is vertically meshed and connected below the first bevel gear (34), the second bevel gear (35) is fixedly sleeved on a screw rod (36), and the screw rod (36) is screwed inside the lifting column (32); When the external rocker arm is rocked, the transmission rod (1) and the screw rod (36) are driven to rotate, thereby driving the drive bin (31) to rise and fall in the vertical direction.

2. The hidden lifting transmission structure according to claim 1, characterized in that: The opening is in a gourd shape.

3. The hidden lifting transmission structure according to claim 2 is characterized in that: A rotating gasket (5) is arranged in the upper closing portion of the gourd-shaped opening, the rotating gasket (5) is interference-fitted with the upper closing portion of the opening, and both ends of the transmission rod (1) pass through the rotating gasket (5) and are rotatably connected to the rotating gasket (5).

4. The hidden lifting transmission structure according to claim 3 is characterized in that: A limit pin (6) is provided on the outer side of the rotating gasket (5), and both ends of the transmission rod (1) pass through the limit pin (6) and are rotatably connected to the limit pin (6).

5. The hidden lifting transmission structure according to claim 1 is characterized in that: The axis center of the transmission rod (1) coincides with the center of the pull-down tube (2).

6. The hidden lifting transmission structure according to claim 2 is characterized in that: The top tube wall of the pull-down tube (2) is higher than the upper closing lower wall of the gourd-shaped opening.

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