CN218929085U

CN218929085U - Concealed lifting castor

Info

Publication number: CN218929085U
Application number: CN202320077403.0U
Authority: CN
Inventors: 陆显盛; 邹飞章
Original assignee: Foshan City Shunde District Aigema Electromechanical Technology Co ltd
Current assignee: Foshan City Shunde District Aigema Electromechanical Technology Co ltd
Priority date: 2023-01-09
Filing date: 2023-01-09
Publication date: 2023-04-28
Anticipated expiration: 2033-01-09

Abstract

The utility model provides a hidden lifting caster, which has the technical scheme that: the gear box is provided with a trundle bracket which can move up and down relative to the gear box, the bottom end of the trundle bracket is fixedly provided with a trundle, the gear box is provided with a screw rod which penetrates through the top end of the trundle bracket, a nut which is matched with the screw rod is arranged on the screw rod and above the trundle bracket, four side edges of the trundle bracket are provided with upright posts, the four side edges of the gear box are provided with sliding grooves corresponding to the upright posts, and the upright posts are mounted in a fitting way with the sliding grooves; the caster bracket drives the casters to lift up and down very stably, so that four casters mounted on a table can lift synchronously, the internal structure of the lifting casters is stable and compact, the volume is small, the volumes of the table legs and the table corners can be reduced, and the appearance is more attractive.

Description

Concealed lifting castor

[ field of technology ]

The utility model relates to the technical field of lifting casters, in particular to a hidden lifting caster.

[ background Art ]

The existing products such as tables, tea tables and the like are generally not provided with casters, and the products are large in size, heavy, difficult to move and inconvenient to carry; if the upper caster is difficult to stabilize and is not attractive enough, the utility model provides a hidden lifting caster for solving the problems.

[ utility model ]

In order to facilitate the movement and the carrying of products such as tables, tea tables and the like, and not to affect the use and the appearance of the products, the utility model provides a hidden lifting caster.

In order to solve the problems, the utility model provides the following technical scheme:

a hidden lifting castor is characterized in that: including the gear box is equipped with outward can be relative the gear box reciprocates the bottom fixed mounting of truckle support has the truckle be equipped with on the gear box and run through the lead screw on truckle support top be equipped with on the lead screw and be located the top of truckle support with lead screw complex nut be equipped with the stand on four side edges of truckle support correspond on the four side edges of gear box the stand is equipped with the spout, the stand with the spout laminating is installed.

As described above, the hidden lifting caster is characterized in that: a reset spring is arranged between the top end of the caster bracket and the top end of the gear box, one end of the reset spring is propped against the bottom surface inside the top end of the caster bracket, and the other end of the reset spring is propped against the top surface of the gear box.

As described above, the hidden lifting caster is characterized in that: the return springs are nested and arranged on the screw rod, and the return springs can also be arranged on two upright posts or four upright posts on opposite angles.

As described above, the hidden lifting caster is characterized in that: the gear transmission box comprises an upper box body and a lower box body, a first transmission gear connected with the screw rod, a second transmission gear connected with the power shaft and a third transmission gear connected with other lifting casters are arranged in the gear transmission box, the second transmission gear is meshed with the first transmission gear and the third transmission gear respectively, and the first transmission gear and the third transmission gear rotate synchronously with the second transmission gear.

As described above, the hidden lifting caster is characterized in that: the top of the upper box body is provided with a counter bore, a first bearing is arranged on the screw rod and positioned in the counter bore, and a second bearing is arranged at one end of the gear transmission box and positioned in the first transmission gear, the second transmission gear and the third transmission gear respectively.

As described above, the hidden lifting caster is characterized in that: the tail end of the screw rod is provided with a polygonal plug, polygonal jacks are arranged at the centers of the first transmission gear, the second transmission gear and the third transmission gear, and the screw rod and the first transmission gear synchronously rotate.

As described above, the hidden lifting caster is characterized in that: the first transmission gear, the second transmission gear and the third transmission gear are all conical gears, and the axes of the first transmission gear, the second transmission gear and the third transmission gear are mutually perpendicular in a three-dimensional space.

As described above, the hidden lifting caster is characterized in that: the truckle support is including upper bracket and lower carriage, the truckle passes through screw fixed mounting the bottom of lower carriage.

As described above, the hidden lifting caster is characterized in that: the lower support and the truckle are positioned in the truckle and positioned below the mounting plate, a first through hole used for penetrating through the upright post is formed in the mounting plate, a second through hole is formed in the bottom surface of the desk corner, and the diameter of the second through hole is larger than that of the truckle.

As described above, the hidden lifting caster is characterized in that: the nut is fixedly connected with a mounting pipe for mounting the hidden lifting castor in the lifting table leg.

Compared with the prior art, the utility model has the following advantages:

1. the hidden lifting castor is provided with the upright posts and the sliding grooves, and the castor bracket can slide up and down along the sliding grooves relative to the gear transmission box through the upright posts on the periphery, so that the castor is driven to lift up and down.

2. According to the hidden lifting caster, the first transmission gear and the third transmission gear are synchronously rotated with the second transmission gear, and meanwhile, the screw rod is synchronously rotated with the first transmission gear, so that four casters mounted on a table can be synchronously lifted, movement of the table is prevented from being blocked, and products such as a lifting table or a lifting tea table can be combined to operate together.

3. The hidden lifting castor is mounted between the castor bracket and the gear transmission box in a fitting way, the internal structure is stable and compact, the volume of the lifting castor is smaller, the volumes of the desk legs and the desk corners can be reduced, and the appearance is more attractive.

[ description of the drawings ]

FIG. 1 is a perspective view of the hidden lift caster;

FIG. 2 is a front view of the hidden lift caster with the table angle and mounting plate hidden;

FIG. 3 is a cross-sectional view taken along the direction A-A of FIG. 2, with the table corner and mounting plate removed;

FIG. 4 is a first exploded view of the hidden lift caster;

FIG. 5 is a second exploded view of the hidden lift caster;

FIG. 6 is a third exploded view of the hidden lifting caster;

FIG. 7 is an exploded view of the gear box;

in the figure: 1 is a gear box; 101 is an upper box body; 102 is a lower box body; 2 is a castor bracket; 201 is an upper bracket; 202 is a lower bracket; 3 is a castor; 4 is a screw rod; 5 is a nut; 6 is an installation tube; 7 is a return spring; 8 is a column; 9 is a chute; 10 is a polygonal plug; 11 is a first transmission gear; 12 is a second drive gear; 13 is a third transmission gear; 14 is a polygonal jack; 15 is a counter bore; 16 is a first bearing; 17 is a second bearing; 18 is a table corner; 19 is a mounting plate; 20 is a first through hole; 21 is a second through hole.

[ detailed description ] of the utility model

The technical features of the present utility model are described in further detail below with reference to the accompanying drawings so that those skilled in the art can understand the features.

The utility model provides a hidden lift truckle, is shown as fig. 1 ~ 7, including gear box 1 is equipped with outward can be relative gear box 1 reciprocates's truckle support 2's bottom fixed mounting has truckle 3 gear box 1 is last to be equipped with run through truckle support 2 top lead screw 4 be equipped with on the lead screw 4 and be located the top of truckle support 2 with lead screw 4 complex nut 8 be equipped with stand 8 on four side edges of truckle support 2 correspond on four side edges of gear box 1 stand 8 is equipped with spout 9, stand 8 is cylindrically, spout 9 is concave convex, stand 8 with spout 9 laminating installation can prevent truckle support 2 rocks in the lift process, thereby makes truckle 3 steadily goes up and down.

As shown in fig. 3 to 6, a return spring 7 is provided between the tip of the caster frame 2 and the tip of the gear box 1, and one end of the return spring 7 abuts against the bottom surface inside the tip of the caster frame 2 and the other end abuts against the top surface of the gear box 1.

Specifically, the lifting process of the hidden lifting caster is as follows:

when a power shaft provided by a motor or other mechanisms drives the second transmission gear 12 to rotate forward, the third transmission gear 13, the first transmission gear 11 and the screw rod 4 synchronously rotate, the nut 5 moves downwards on the screw rod 4 until the nut 5 abuts against the caster bracket 2, and at the moment, if the second transmission gear 12 continues to rotate forward, the nut 5 pushes the caster bracket 2 to move downwards, compresses the return spring 7 and drives the caster 3 at the bottom end of the caster bracket 2 to extend out of the table angle 18;

when the castor 3 is in a state of extending out of the table corner 18, if the second transmission gear 12 rotates reversely, the nut 5 moves upward on the screw rod 4, and the return spring 7 in a compressed state pushes the castor frame 2 to move upward until the castor frame 2 returns to the initial position.

Specifically, the return springs 7 are mounted on the screw rod 4 in a nested manner, the return springs 7 can also be arranged on two upright posts 8 or four upright posts 8 at opposite angles, and the two mounting modes of the return springs 7 can both push the caster bracket 2 to return, wherein the return springs 7 are mounted on the screw rod 4 in a nested manner, so that the mounting process of the mounting mode is simpler, and the cost can be reduced; the return spring 7 is nested and arranged on the upright post 8, so that the thrust applied to the caster bracket 2 by the installation mode is more stable, and the stress of the caster bracket 2 is more uniform.

In addition, as shown in fig. 4 to 7, the gear box 1 includes an upper box body 101 and a lower box body 102, a first transmission gear 11 connected with the screw rod 4, a second transmission gear 12 connected with a power shaft, and a third transmission gear 13 connected with other lifting casters are provided in the gear box 1, the second transmission gear 12 is meshed with the first transmission gear 11 and the third transmission gear 13, and the first transmission gear 11 and the third transmission gear 13 are synchronously rotated with the second transmission gear 12, so that four casters mounted on a table can synchronously lift.

In addition, as shown in fig. 7, a counter bore 15 is provided at the top end of the upper case 101, a first bearing 16 is provided on the screw rod 4 and located in the counter bore 15, and second bearings 17 are provided in the gear box 1 and located at one ends of the first transmission gear 11, the second transmission gear 12 and the third transmission gear 13, respectively, and the first bearing 16 and the second bearings 17 can reduce friction, so that the lifting process of the hidden lifting caster is smoother.

Specifically, as shown in fig. 4 to 6, the polygonal plug 10 is disposed at the end of the screw rod 4, and polygonal insertion holes 14 are disposed at the centers of the first transmission gear 11, the second transmission gear 12 and the third transmission gear 13, and the screw rod 4 and the first transmission gear 11 synchronously rotate, so that a plurality of interconnected casters can be ensured to synchronously lift, and meanwhile, the hidden lifting casters can be conveniently combined with products such as a lifting table or a lifting tea table.

In addition, as shown in fig. 7, the first transmission gear 11, the second transmission gear 12 and the third transmission gear 13 are all conical gears, and the axes of the first transmission gear 11, the second transmission gear 12 and the third transmission gear 13 are mutually perpendicular in a three-dimensional space, so that the hidden lifting casters are convenient to be mutually installed and connected, and a plurality of casters can be lifted synchronously.

Specifically, as shown in fig. 4 to 6, the caster frame 2 includes an upper frame 201 and a lower frame 202, and the caster 3 is fixedly mounted at the bottom end of the lower frame 202 by screws.

Specifically, as shown in fig. 4 to 6, a hollow table corner 18 is provided below the caster bracket 2, a mounting plate 19 is provided on the table corner 18, the lower bracket 202 and the caster 3 are located in the caster 3 and below the mounting plate 19, the caster 3 is hidden in the table corner 18 under the condition that no movement is required, the table corner 18 is in contact with the ground to keep the stability of a table or a tea table, a first through hole 20 for passing through the upright post 8 is provided on the mounting plate 19, the first through hole 20 is used for facilitating the up-and-down movement of the caster bracket 2, a second through hole 21 is provided on the bottom surface of the table corner 18, the diameter of the second through hole 21 is larger than that of the caster 3, and the second through hole 21 is used for facilitating the caster 3 to extend out of the table corner 18 from the second through hole 21.

In addition, as shown in fig. 4 to 6, a mounting pipe 6 for mounting the hidden lifting caster in the lifting table leg is fixedly connected to the nut 5, the mounting pipe 6 is generally used for lifting in cooperation with products such as a lifting table or a lifting tea table, so that the hidden lifting caster can be combined with the products such as the lifting table or the lifting tea table, when the lifting table leg of the lifting table moves downwards, the mounting pipe 6 moves downwards synchronously with the nut 5 until the nut 5 abuts against the caster bracket 2, and when the lifting table leg moves downwards continuously, the nut 5 pushes the caster bracket 2 to move downwards, so that the caster 3 at the bottom end of the caster bracket 2 stretches out of the table corner 18, and further the movement and the carrying can be performed easily.

The examples described herein are merely illustrative of preferred embodiments of the present utility model and are not limited to the precise arrangements that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof; various modifications and improvements of the technical scheme of the utility model, which are made by the engineering skilled in the art without departing from the design concept of the utility model, shall fall into the protection scope of the utility model.

Claims

1. A hidden lifting castor is characterized in that: including gear box (1) be equipped with outward can be relative gear box (1) reciprocates truckle support (2) bottom fixed mounting of truckle support (2) has truckle (3) be equipped with on gear box (1) run through lead screw (4) on truckle support (2) top just be located on lead screw (4) be equipped with on truckle support (2) with lead screw (4) complex nut (5) be equipped with stand (8) on four side edges of truckle support (2) correspond on four side edges of gear box (1) stand (8) are equipped with spout (9), stand (8) with spout (9) laminating installation.

2. The concealed lifting caster as recited in claim 1, wherein: a reset spring (7) is arranged between the top end of the caster bracket (2) and the top end of the gear box (1), one end of the reset spring (7) is propped against the bottom surface inside the top end of the caster bracket (2), and the other end is propped against the top surface of the gear box (1).

3. The concealed lifting caster as claimed in claim 2, wherein: the return springs (7) are nested and arranged on the screw rod (4), and the return springs (7) can also be arranged on two upright posts (8) or four upright posts (8) at opposite angles.

4. The concealed lifting caster as recited in claim 1, wherein: the gear box (1) comprises an upper box body (101) and a lower box body (102), a first transmission gear (11) connected with the screw rod (4), a second transmission gear (12) connected with a power shaft and a third transmission gear (13) connected with other lifting casters are arranged in the gear box (1), the second transmission gear (12) is respectively meshed with the first transmission gear (11) and the third transmission gear (13), and the first transmission gear (11) and the third transmission gear (13) are synchronously rotated with the second transmission gear (12).

5. The concealed lifting caster as recited in claim 4, wherein: the top of last box body (101) is equipped with counter bore (15) on lead screw (4) and be located be equipped with first bearing (16) in counter bore (15) in gear box (1) and be located respectively first drive gear (11), second drive gear (12) and the one end of third drive gear (13) all is equipped with second bearing (17).

6. The concealed lifting caster as recited in claim 4, wherein: the tail end of the screw rod (4) is provided with a polygonal plug (10), the centers of the first transmission gear (11), the second transmission gear (12) and the third transmission gear (13) are respectively provided with a polygonal jack (14), and the screw rod (4) and the first transmission gear (11) synchronously rotate.

7. The concealed lifting caster as recited in claim 4, wherein: the first transmission gear (11), the second transmission gear (12) and the third transmission gear (13) are all conical gears, and the axes of the first transmission gear (11), the second transmission gear (12) and the third transmission gear (13) are mutually perpendicular in a three-dimensional space.

8. The concealed lifting caster as recited in claim 1, wherein: the caster bracket (2) comprises an upper bracket (201) and a lower bracket (202), and the caster (3) is fixedly arranged at the bottom end of the lower bracket (202) through screws.

9. The concealed lifting caster of claim 8, wherein: the lower part of the trundle bracket (2) is provided with a hollow desk corner (18), the desk corner (18) is provided with a mounting plate (19), the lower bracket (202) and the trundle (3) are positioned in the trundle (3) and below the mounting plate (19), the mounting plate (19) is provided with a first through hole (20) used for penetrating through the upright post (8), the bottom surface of the desk corner (18) is provided with a second through hole (21), and the diameter of the second through hole (21) is larger than that of the trundle (3).

10. The concealed lifting caster as recited in claim 1, wherein: the nut (5) is fixedly connected with an installation pipe (6) for installing the hidden lifting castor in the lifting table leg.