Lifting assembly of lifting table and lifting table

Abstract

The utility model provides a lifting assembly of a lifting table and the lifting table, and the lifting assembly comprises a lifting column, a lifting rod and a lifting rod, the driving assembly is installed on the assembling part and used for driving the lifting column to execute the extending or retracting action; the resistance detection assembly is matched with the assembling part; and the control panel is used for controlling the lifting column. The lifting table solves the technical problems that in a lifting table in the prior art, a strain gauge is arranged on an installation structure of a lifting column, when the lifting table encounters obstacles in the lifting process, generated vibration is gradually weakened through the structure of the lifting table and then is transmitted to the position of the strain gauge, and therefore the strain gauge cannot clearly detect the blockage situation, and the lifting table cannot be damaged. Therefore, the lifting table cannot be controlled in time to execute a stop or return command, and potential safety hazards exist when the lifting table is used.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting desks, and more specifically, to a lifting component of a lifting desk and a lifting desk. Background Art

[0002] With the continuous development of technology and economy, smart home and smart office have become the mainstream. For example, for a lifting desk, its lifting is mainly achieved by a lifting column controlled by a motor. And when there are obstacles during the lifting process, strain gauges are usually used to detect whether the lifting desk encounters resistance and make corresponding controls.

[0003] However, there are at least the following problems in the related art: In the existing lifting desks in the prior art, the strain gauges are arranged on the installation structure of the lifting column. When the lifting desk encounters an obstacle during the lifting process, the generated vibration gradually weakens through the structure of the lifting desk and then is transmitted to the position of the strain gauges. Therefore, it is difficult for the strain gauges to clearly detect the blocked situation, resulting in the failure to timely control the lifting desk to execute the stop or retract command, thus posing a safety hazard when using the lifting desk. Summary of the Utility Model

[0004] The technical problem solved by the utility model is: In the existing lifting desks in the prior art, the strain gauges are arranged on the installation structure of the lifting column. When the lifting desk encounters an obstacle during the lifting process, the generated vibration gradually weakens through the structure of the lifting desk and then is transmitted to the position of the strain gauges. Therefore, it is difficult for the strain gauges to clearly detect the blocked situation, resulting in the failure to timely control the lifting desk to execute the stop or retract command, thus posing a safety hazard when using the lifting desk.

[0005] To solve the above problems, in an example of the utility model, a lifting component for a lifting desk is provided. The lifting component includes a lifting column, with an assembly part provided at one end of the lifting column; a driving component, which is installed on the assembly part and is used to drive the lifting column to perform an extending or retracting action; a resistance detection component, which cooperates with the assembly part; and a control panel, which is used to control the lifting column. Wherein, when the extending or retracting action encounters resistance, the resistance detection component detects the force signal transmitted from the driving component to the assembly part and transmits the detection signal to the control panel to control the lifting column.

[0006] Compared with the prior art, the technical effect achieved by adopting this technical solution is: When the lifting desk encounters resistance during the lifting process, the driving component serves as the first vibration source, generating an interaction force with the structure of the assembly part. The resistance detection component is arranged on the assembly part and corresponds to the position of the driving component, and can clearly detect the blocked situation in the first time and control the lifting desk.

[0007] In an example of the present utility model, the driving assembly includes a motor and a bearing assembly, and the motor is connected to one side of the bearing assembly; the assembly part includes a fixing group, and the bearing assembly is connected to the assembly part through the fixing group; wherein, the resistance detection assembly is arranged on the fixing group.

[0008] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: when the lifting table encounters resistance during the lifting process, the driving assembly serves as the first vibration source, and an interaction force is generated between the driving assembly and the fixing group. The resistance detection assembly is arranged on the fixing group, so that the resistance detection assembly can clearly detect the blocked situation in the first time, and the resistance detection assembly is arranged relatively close to the driving assembly at this position, and can monitor the operation condition of the driving assembly.

[0009] In an example of the present utility model, the bearing assembly includes a first fixing groove and a second fixing groove, and the first fixing groove and the second fixing groove are oppositely arranged on both sides of the bearing assembly; wherein, the fixing group cooperates with the second fixing groove to connect the bearing assembly and the assembly part, a twisting space is arranged in the first fixing groove, and the fixing group cooperates with the first fixing groove, so that the bearing assembly can twist within the range of the twisting space.

[0010] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: the bearing seat is used to install part of the structure of the driving assembly, which has the effect of protecting the driving assembly. The fixing group fixes the bearing seat to the assembly part. When the lifting table encounters resistance during the lifting process and retreats due to the resistance, the driving assembly serves as the first vibration source, and the resistance detection assembly can detect the blocked situation quickly in the first time through the acting force generated between the bearing seat and the fixing group.

[0011] In an example of the present utility model, a through hole is arranged on one side of the first fixing groove.

[0012] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: the structures between the resistance detection assemblies are connected and cooperated with each other through the structure of the through hole, which is convenient for installation and disassembly.

[0013] In an example of the present utility model, a worm is arranged inside the lifting column; the bearing assembly includes a transmission bearing and a bearing seat, the transmission bearing is installed on the bearing seat, and the transmission bearing is in transmission connection with the worm; the body of the motor is connected to the bearing seat and the output end of the motor is in cooperation with the transmission bearing.

[0014] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: the motor provides torque, and the transmission bearing transmits the torque to the lifting column, so that the lifting column realizes the lifting function. When the lifting table encounters resistance during the lifting process, the lifting column controls the transmission bearing in the reverse direction, so that the motor moves, and the motor drives the connected bearing seat, and further an interaction force is generated between the bearing seat and the fixing group.

[0015] In an example of the present utility model, the resistance detection component includes a strain gauge, and the strain gauge is arranged on one side of the fixed group located within the twisting space.

[0016] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: When the lifting table encounters resistance during the lifting process, the acting force between the transmission bearing and the fixed group acts on the strain gauge, causing the strain gauge to deform, and then generating an electrical signal to control the lifting column.

[0017] In an example of the present utility model, the strain gauge is arc-shaped.

[0018] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: The arc-shaped strain gauge corresponds to the structure of the installation position, is not easily damaged during use, and can improve the service life of the strain gauge.

[0019] In an example of the present utility model, the lifting tube is a square tube.

[0020] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: The square tube has good tensile and anti-bending capabilities during the lifting process of the lifting column, and the manufacturing process of the square tube is simple and the cost is low.

[0021] In an example of the present utility model, it includes a box body, and the box body is cooperatively arranged on the side of the assembly part away from the lifting column; wherein, an accommodating space is arranged inside the box body for covering the driving component.

[0022] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: The box body covers the driving component, avoiding interference from external factors to the normal operation of the driving component.

[0023] In an example of the present utility model, a lifting table includes the lifting component of any one of the above; it includes a tabletop, and the tabletop is cooperatively connected with the lifting column.

[0024] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: The resistance-retreating lifting table in this example has all the beneficial effects of the lifting structure of any embodiment of the present utility model, which will not be elaborated here.

[0025] After adopting the technical solution of the present utility model, the following technical effects can be achieved:

[0026] (1) The strain gauge is arranged on the fixed group, the fixed group is connected with the driving component, the driving component serves as the first vibration source, and the strain gauge can clearly receive the force generated between the fixed group and the driving component in the first time, thereby controlling the lifting of the lifting column;

[0027] (2) The strain gauge is arranged on the fixed group, and the position is relatively close to the driving component, and can detect whether the driving component is operating normally;

[0028] (3) The structure of the utility model is simple and convenient for production and manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 FIG. is a schematic structural diagram of a lifting assembly provided by the present utility model.

[0031] Figure 2 is Figure 1 a schematic structural diagram of the combination of the drive assembly and the assembly part from another perspective in.

[0032] Figure 3 is Figure 2 a schematic structural diagram of the drive assembly from another perspective in.

[0033] DESCRIPTION OF THE REFERENCE NUMERALS:

[0034] 1, lifting column; 2, drive assembly; 201, motor; 202, bearing assembly; 203, fixing group; 204, connecting column; 205, fitting; 206, strain gauge; 207, through hole; 208, first fixing groove; 209, second fixing groove; 3, assembly part; 301, mounting wall; 302, base; 4, box body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] In order to make the above objects, features, and advantages of the present utility model more obvious and understandable, the specific embodiments of the present utility model will be described in detail below with reference to the drawings.

[0036] Refer to Figure 1 , in an example of the present utility model, the lifting assembly includes a lifting column 1, one end of the lifting column 1 is provided with an assembly part 3; a drive assembly 2, the drive assembly 2 is installed on the assembly part 3 for driving the lifting column 1 to perform an extending or retracting action; a resistance detection assembly, the resistance detection assembly cooperates with the assembly part 3; a control panel, the control panel is used to control the lifting column 1; wherein, when the extending or retracting action encounters resistance, the resistance detection assembly detects the force signal transmitted from the drive assembly 2 to the assembly part 3 and transmits the detection signal to the control panel to control the lifting column 1.

[0037] Specifically, there is an activity space provided on the assembly part 3. The driving component 2 can wobble within the activity space. The driving component 2 is matched with the installation structure on the assembly part 3. When the extending or retracting action encounters resistance, the driving component 2 wobbles, and during the wobbling process, it comes into contact with some of the installation structures. Due to the wobbling potential energy generated by the wobbling, a force is exerted on the contacted part of the installation structure. The resistance detection component is arranged at the position where the driving component 2 acts on the installation structure, and can clearly detect the force exerted by the driving component 2 on the assembly part 3, and send the detection signal to the control panel. The control panel receives the detection signal to judge whether there is an obstruction, and controls the lifting column 1.

[0038] See Figure 2 , in an example of the present utility model, the driving component 2 includes a motor 201 and a bearing component 202. The motor 201 is connected to one side of the bearing component 202; the assembly part 3 includes a fixing group 203, and the bearing component 202 is connected to the assembly part 3 through the fixing group 203; wherein, the resistance detection component is arranged on the fixing group 203.

[0039] Preferably, the fixing group 203 is a fixing screw. Fixing the driving component 2 to the assembly part 3 by the fixing screw has the advantages of low price and simple assembly.

[0040] Specifically, the fixing screws are arranged at the opposite ends on the outer side of the bearing component 202 to fix the bearing component 202 to the assembly part 3. The output end of the motor 201 is cooperatively connected with the bearing component 202. The transmission structure of the bearing component 202 is connected to the transmission structure of the lifting column 1 to form power transmission, so as to realize the rising or falling of the lifting table. When the motor 201 encounters resistance during the lifting process of the lifting table, the driving component 2 is subjected to the reverse action of the lifting column 1, causing the driving component 2 to wobble. The matching position between the bearing component 202 and the fixing screw also wobbles, and a mutual pulling force is formed between the two. The resistance detection component is arranged at the matching position between the fixing screw and the bearing component 202, detects the action of the pulling force between the two, and sends the detection signal to the control panel to control the lifting column 1 to retract or stop.

[0041] In an example of the present utility model, the bearing component 202 includes a first fixing groove 208 and a second fixing groove 209. The first fixing groove 208 and the second fixing groove 209 are oppositely arranged on both sides of the bearing component 202; wherein, the fixing group 203 cooperates with the second fixing groove 209 to connect the bearing component 202 to the assembly part 3. There is a twisting space in the first fixing groove 208, and the fixing group 203 cooperates with the first fixing groove 208, so that the bearing component 202 can twist within the range of the twisting space.

[0042] Specifically, the body of the motor 201 is connected to the outer shell of the bearing assembly 202. First fixing grooves 208 and second fixing grooves 209 are respectively provided at opposite ends of the outer shell of the bearing assembly 202. A twisting space is provided in the first fixing groove 208, and there is a margin in this twisting space. The fixing screw connects the bearing assembly 202 to the assembly part 3 through the first fixing groove 208, and the bearing assembly 202 can shift within the margin range of the twisting space. The second fixing groove 209 is in a tight fit with the fixing screw relative to the first fixing groove 208. Due to the characteristics of the fixing screw, the bearing assembly 202 can rotate around the fixing screw in the second fixing groove 209. Due to the setting of the first fixing groove 208, the bearing assembly 202 can twist within the margin range of the twisting space. When the lifting table is blocked during the lifting process and the motor 201 shakes, since the motor 201 is connected to the outer shell of the bearing assembly 202, the bearing assembly 202 twists within the margin range, causing the bearing assembly 202 to contact the fixing screw in the first fixing groove 208 and further generating a mutual acting force. The obstruction detection component is arranged on the fixing screw in the first fixing groove 208, and can clearly detect the force transmitted to the fixing screw when the bearing assembly 202 twists, and send the detection signal to the control panel to control the lifting column 1.

[0043] In an example of the present utility model, a through hole 207 is provided at the side wall position of one side of the first fixing groove 208.

[0044] In an example of the present utility model, a worm is provided inside the lifting column 1; the bearing assembly 202 includes a transmission bearing and a bearing seat. The transmission bearing is installed on the bearing seat, and the transmission bearing is in cooperation connection with the worm; the body of the motor 201 is connected to the bearing seat and the output end of the motor 201 is in cooperation with the transmission bearing.

[0045] Specifically, both the first fixing groove 208 and the second fixing groove 209 are provided on the bearing seat. The fixing screw cooperates with the bearing seat to connect the bearing seat with the assembly part 3. The transmission bearing is installed on the bearing seat. And when the lifting table encounters resistance, the structure of the bearing seat decelerates the rotation of the transmission bearing. The rotation speed of the transmission bearing does not match the rotation speed of the output end of the motor 201, generating an interaction force at the connection, thus causing the drive assembly 2 to shake. Inside the lifting column 1, there is a worm for transmission. The output end on the motor 201 is meshed with the outer shaft of the transmission bearing through a gear structure. The inner shaft of the transmission bearing is connected to one end of the worm inside the lifting column 1, enabling the torque of the motor 201 to realize the rising or falling movement of the lifting column 1 through the combined structure of the transmission bearing and the worm. At the connection end of the worm and the transmission structure, there are a connecting column 204 and a fitting 205 for connection. Through the cooperation of the corresponding structures of the connecting column 204 and the fitting 205, the transmission bearing is nested on the worm. When the lifting table encounters resistance during the rising or falling process, the worm in the lifting column 1 cannot continue to work and acts in the reverse direction on the transmission bearing, and the structure of the bearing seat decelerates the rotation of the transmission bearing. The connecting column 204 at one end of the worm jams the fitting 205 connected to the inner shaft of the transmission bearing, further causing the drive assembly 2 to shake, thereby generating an acting force between the bearing seat and the fixing screw.

[0046] See Figure 3 , in an example of the present utility model, the resistance detection assembly includes a strain gauge 206, and the strain gauge 206 is provided on one side of the fixing group 203 located within the torsion space.

[0047] Preferably, the strain gauge 206 is a resistive strain gauge 206. When the lifting table encounters resistance during the rising or falling process, the drive assembly 2 shakes, causing an interaction between the first fixing groove 208 and the fixing screw. The strain gauge 206 is provided between the two interaction positions, and the acting force deforms the strain gauge 206.

[0048] Optionally, an annular elastic gasket is provided on the fitting part of the fixing group 203, and the strain gauge 206 is provided on the outer side surface of the elastic gasket, which plays a role in protecting the strain gauge 206 and extending the service life of the strain gauge 206.

[0049] In an example of the present utility model, the strain gauge 206 is arc-shaped.

[0050] Preferably, the arc-shaped strain gauge 206 can cooperate with the structure of the fixing screw. When the lifting table encounters resistance during the rising or falling process, it can be better stressed and can more clearly detect the resistance situation of the lifting table.

[0051] In an example of the present utility model, the lifting tube is a square tube.

[0052] Preferably, the lifting column 1 is a square tube, which has the advantages of strong anti-deformation ability, simple manufacturing and low cost.

[0053] Optionally, the lifting column 1 includes a first sleeve, a second sleeve and a third sleeve. The second sleeve is nested in the first sleeve section, and the first sleeve section and the second sleeve can slide relative to each other. The third sleeve is nested in the second sleeve, and the third sleeve and the second sleeve can slide relative to each other. A worm is provided in the third sleeve to realize the relative sliding between the first sleeve and the second sleeve and the relative sliding between the third sleeve and the second sleeve, so as to realize the ascending and descending movements of the lifting column 1.

[0054] In an example of the present utility model, it includes a box body 4, and the box body 4 is cooperatively arranged on the side of the assembly part 3 away from the lifting column 1; wherein, an accommodation space is provided inside the box body 4 to cover the driving component 2.

[0055] Optionally, the assembly part 3 includes a base 302 and a mounting wall 301. One side of the base 302 where the motor 201 is arranged is a smooth plane. The mounting wall 301 is in an L-shaped structure and is located on opposite sides of the base 302. The box body 4 and the mounting wall 301 are connected to each other by a snap-fit form, and the box body 4 and the base 302 are fixed to each other by setting screws. This solution is convenient for installation and disassembly.

[0056] In an example of the present utility model, a lifting table includes: the lifting assembly of any one of the above; and a tabletop, and the tabletop is cooperatively connected to the lifting column 1.

[0057] Specifically, the lifting table is provided with the lifting structure of any one of the technical solutions in the above embodiments, so it has at least the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here one by one.

[0058] Although the present utility model is disclosed as above, the present utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the scope defined by the claims.

Claims

1. A lifting assembly for a lifting table, characterized in that: include: A lifting column (1), wherein one end of the lifting column (1) is provided with a mounting portion (3); A driving component (2), the driving component (2) being mounted on the assembly portion (3) and being used to drive the lifting column (1) to perform an extension or retraction action; An obstruction detection component, the obstruction detection component cooperates with the assembly portion (3); A control panel, the control panel being used to control the lifting column (1); When the extending or retracting action encounters resistance, the resistance detection component detects a force signal transmitted from the driving component (2) to the assembly portion (3), and transmits the detection signal to the control panel to control the lifting column (1).

2. The lifting assembly according to claim 1, characterized in that: The driving assembly (2) comprises a motor (201) and a bearing assembly (202), wherein the motor (201) is connected to one side of the bearing assembly (202); The assembly portion (3) comprises a fixing group (203), and the bearing assembly (202) is connected to the assembly portion (3) via the fixing group (203); Wherein, the obstruction detection component is arranged in the fixing group (203).

3. The lifting assembly according to claim 2, characterized in that: The bearing assembly (202) comprises a first fixing groove (208) and a second fixing groove (209), wherein the first fixing groove (208) and the second fixing groove (209) are respectively arranged at two opposite sides of the bearing assembly (202); The fixing group (203) cooperates with the second fixing groove (209) to connect the bearing assembly (202) and the assembly portion (3); a twisting space is provided in the first fixing groove (208); the fixing group (203) cooperates with the first fixing groove (208) to enable the bearing assembly (202) to be located in the twisting space and to be twisted.

4. The lifting assembly according to claim 3, characterized in that: A through hole (207) is provided on one side of the first fixing groove (208).

5. The lifting assembly according to claim 3, characterized in that: The lifting column (1) is provided with a worm gear inside; The bearing assembly (202) comprises a transmission bearing and a bearing seat, the transmission bearing is mounted on the bearing seat, and the transmission bearing is cooperatively connected with the worm; The body of the motor (201) is connected to the bearing seat and the output end of the motor (201) is matched with the transmission bearing.

6. The lifting assembly according to claim 3, characterized in that: The resistance detection component comprises a strain gauge (206), and the strain gauge (206) is arranged on one side of the fixing group (203) located in the torsion space.

7. The lifting assembly according to claim 6, characterized in that: The strain gauge (206) is in an arc shape.

8. The lifting assembly according to claim 1, characterized in that: The lifting column (1) is a square tube.

9. The lifting assembly according to claim 1, characterized in that: include: A box body (4), the box body (4) being arranged on a side of the assembly portion (3) away from the lifting column (1); Wherein, a containing space is provided inside the box body (4) for covering the driving assembly (2).

10. A lifting table, characterized in that: include: The lifting assembly according to any one of claims 1 to 9; A desktop, the desktop being cooperatively connected to the lifting column (1).

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