Motor bracket and electric lifting table

Abstract

The utility model discloses a motor bracket and an electric lifting table, wherein the motor bracket comprises a connecting plate connected to the lifting table, a mounting plate for installing a power supply motor component, and a bridge plate arranged between the connecting plate and the mounting plate, wherein the bridge plate is a deformation part, and the deformation part enables a flexible connection between the mounting plate and the connecting plate, and is used to alleviate or eliminate the assembly error between the transmission rod and the gear box in the lifting column during installation. The electric lifting table adopts the above motor bracket, and the motor bracket can alleviate the abnormal noise or shaking of the lifting column caused by the assembly error of the motor bracket and the difference in the matching accuracy of the transmission rod.

Description

Technical Field

[0001] The present application relates to the technical field of furniture equipment, and in particular to a motor bracket and an electric lifting table. Background Art

[0002] The lifting table is also called a study table or a lifting office desk. It uses the lifting characteristics to meet the healthy office needs of people of different heights to alternate between standing and sitting. Therefore, more and more office workers choose lifting tables to work. Lifting tables in related technologies generally include electric lifting tables and manual lifting tables. The former uses a motor to drive the lifting, while the latter uses a crank to drive the lifting. The electric lifting table uses a single motor to drive the lifting table, also known as a single-motor electric lifting table. Its structure generally includes a table top, a base, and two lifting columns connecting the table top and the base; the single-motor electric lifting table also includes a driving motor, which is arranged between the two lifting columns, and the driving end of the driving motor is connected to a horizontally arranged transmission rod, and the two ends of the transmission rod are respectively connected to the screw lifting mechanism in the two lifting columns; the driving motor drives the transmission rod to rotate, thereby rotating the screw lifting mechanism in the two lifting columns, so that the two lifting columns can be lifted and lowered. For example, in the lifting tables previously applied for by the applicant of this case with publication numbers CN212435466U, CN219125647U, CN213428925U, etc., the driving motor is installed on one of the lifting columns through a motor bracket; the motor bracket is a sheet metal part formed by bending, which has a connecting plate connected to the column and a mounting plate for installing the driving motor, and the connecting plate and the mounting plate are sheet metal parts bent into an L shape. During installation, the driving motor is first connected to the mounting plate of the motor bracket, and then the motor bracket with the driving motor is connected to the top of the lifting column through the connecting plate.

[0003] The electric lifting table of the above-mentioned related technology has the following defects in actual use and assembly process: First, in order to facilitate the connection between the motor bracket and the upper end of the lifting column, the connecting plate of the motor bracket and the upper end of the lifting column are clearance-matched, that is, the connecting plate of the motor bracket is placed on the top of the lifting column and fixedly connected to the upper end of the lifting column by screws; because there is an assembly gap and assembly error between the connecting plate of the motor bracket and the end face of the top of the lifting column, after the motor bracket is installed, the transmission rod of the driving end of the driving motor on the motor bracket often deviates from the preset position, so that the axis of the transmission rod and the axis of the gearbox input gear of the screw lifting mechanism in the lifting column are not in the same straight line, resulting in eccentric transmission; therefore, when the driving motor drives the transmission rod to rotate to drive the input gear of the gearbox in the lifting column to rotate, the input gear generates radial force, which compresses the gearbox, thereby causing abnormal noise or shaking of the lifting column. Furthermore, factors such as the error of the installation position of the driving motor on the motor bracket, the assembly error of the transmission rod, and the assembly accuracy of the input gear of the gearbox can all lead to eccentric transmission of the transmission rod, causing abnormal noise or shaking of the lifting column. Utility Model Content

[0004] The technical problem to be solved by the present application is to overcome the defects of the above-mentioned related technologies and provide a motor bracket that can alleviate the abnormal noise or shaking of the lifting column caused by the assembly error of the motor bracket and the difference in the matching accuracy of the transmission rod.

[0005] The technical solution of the present application is to provide a motor bracket with the following structure: including a connecting plate connected to the lifting table, a mounting plate for installing the power supply motor component, and a bridging plate arranged between the connecting plate and the mounting plate, wherein the bridging plate is a deformation part, and the deformation part enables a flexible connection between the mounting plate and the connecting plate, so as to alleviate or eliminate the assembly error between the transmission rod and the gear box in the lifting column during installation.

[0006] In some embodiments, the connecting plate, the bridging plate and the mounting plate are formed by integrally bending a metal plate.

[0007] In some embodiments, the shape of the deformation portion is one or more of a wave shape, an N shape, a V shape, an M shape, a Z shape, a C shape, and an n shape.

[0008] In some embodiments, the deformation portion is provided with at least one slot extending along the length direction of the bridging plate.

[0009] In some embodiments, one end of the slot extends and passes through at least a portion of the connecting plate, and the other end of the slot extends and passes through at least a portion of the mounting plate.

[0010] In some embodiments, the plane where the connecting plate is located is perpendicular to the plane where the mounting plate is located.

[0011] In summary, compared with the related art, the motor bracket of the present application has the following advantages: the motor bracket installs the motor assembly on the mounting plate, and then connects the connecting plate to the lifting table. Because a bridge plate is connected between the connecting plate and the mounting plate, and the bridge plate is a deformation part, the mounting plate and the connecting plate are flexibly connected, that is, the mounting plate has a flexible or elastic activity space relative to the connecting plate under the action of force, such as being able to float flexibly up and down or left and right or at multiple different angles; in this way, after the motor bracket is installed, even if there is an assembly gap or clearance fit between the connecting plate and the lifting table The assembly error or the fitting error caused by the fitting accuracy of the transmission rod of the motor assembly causes the transmission eccentricity of the transmission rod; however, since the mounting plate and the connecting plate of the motor bracket connecting the motor assembly are flexibly connected, when the motor drives the transmission rod to rotate, the radial force exerted on the transmission rod due to the transmission eccentricity forces the mounting plate to deform laterally accordingly or adaptively, thereby achieving the effect of continuously adjusting and correcting the transmission center of the transmission rod, thereby alleviating or partially offsetting the radial force exerted on the input gear of the lifting column gear box, making the transmission smoother, thereby reducing or alleviating the noise and jitter during the transmission process of the lifting column.

[0012] Another technical solution of the present application is to provide an electric lifting table with the following structure: including a table top, a crossbeam, a base, and a lifting column connecting the table top and the base and used to adjust the height of the table top relative to the base, the electric lifting table also includes a driving motor and a transmission rod, the driving motor is connected to the electric lifting table through a motor bracket and the driving motor is transmission-connected to the transmission rod, the two ends of the transmission rod are respectively transmission-connected to the input end of the gear box of the lifting column, and the motor bracket adopts the motor bracket described in any of the above embodiments.

[0013] In some embodiments, the connecting plate of the motor bracket is connected to the top of the lifting column, or the connecting plate of the motor bracket is connected to the bottom of the table top, or the connecting plate of the motor bracket is connected to the crossbeam.

[0014] In summary, compared with the related art, the electric lifting table of the present application has the following advantages: the electric lifting table adopts the motor bracket of any of the above-mentioned embodiments, so after the drive motor, the motor bracket and the transmission rod are installed, even if there is an assembly error caused by the assembly gap or clearance fit between the connecting plate of the motor bracket and the lifting table, or a fitting error caused by the fitting accuracy of the transmission rod, resulting in the transmission eccentricity of the transmission rod; but because the mounting plate and the connecting plate connecting the motor bracket to the drive motor are flexibly connected, when the drive motor drives the transmission rod to rotate, the radial force exerted on the transmission rod due to the transmission eccentricity forces the mounting plate to deform laterally accordingly or adaptively, thereby achieving the effect of continuously adjusting the transmission center of the transmission rod, thereby alleviating or partially offsetting the radial force exerted on the input gear of the lifting column gear box, making the transmission smoother, thereby reducing or alleviating the noise and jitter during the transmission process of the lifting column. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a motor bracket in some embodiments of the present application.

[0016] Figure 2 It is a schematic diagram of the back structure of a motor bracket in some embodiments of the present application.

[0017] Figure 3 This is a schematic diagram of the structure of a motor bracket from another angle in some embodiments of the present application.

[0018] Figure 4 It is a side schematic diagram of a motor bracket according to some embodiments of the present application.

[0019] Figure 5 Schematic diagram of a motor bracket connected to a crossbeam in some embodiments of the present application.

[0020] Figure 6 This is another angle schematic diagram of a motor bracket connected to a crossbeam in some embodiments of the present application.

[0021] Figure 7 It is a structural schematic diagram of a motor bracket according to other embodiments of the present application.

[0022] Figure 8 It is a schematic diagram of the side structure of a motor bracket according to other embodiments of the present application.

[0023] Fig. 9 is a schematic diagram of an electric lifting table in some embodiments of the present application.

[0024] Fig.10 It is a schematic diagram of an electric lifting table according to other embodiments of the present application.

[0025] Fig.11It is a schematic diagram of the installation of a motor bracket of an electric lifting table in other embodiments of the present application.

[0026] Description of reference numerals:

[0027] 1. Connecting plate, 100, connecting hole, 2. Mounting plate, 200, through hole, 3. Bridging plate, 300, deformation part, 301, slot hole, 4. Table top, 5. Lifting column, 6. Beam, 7. Transmission rod, 8. Driving motor. DETAILED DESCRIPTION

[0028] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0029] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it 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 directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0030] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] See also Figures 1 to 8As shown, the embodiment of the present application discloses a motor bracket, which is used as an accessory of an electric lifting table, especially an electric lifting table with a single motor. In the electric lifting table with a single motor, two lifting columns 5 are connected by a transmission rod 7, that is, a screw lifting mechanism or a linear transmission mechanism is connected in the lifting column 5, and the upper end of the lifting column 5 is connected to a gear box connected to the screw lifting mechanism or the linear transmission mechanism, and the gear box has a power input end, that is, an input gear, and the center of the input gear has a socket; the two ends of the transmission rod 7 are respectively inserted into the gear boxes of the two lifting columns 5 and are connected to the socket of the input gear for transmission; the motor bracket is installed with a motor assembly, and the motor bracket is connected to the lifting table, and the motor assembly drives the transmission rod 7 to rotate, thereby driving the lifting column 5 to rise and fall.

[0033] In this embodiment, see Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the motor bracket includes a connecting plate 1 connected to the lifting table, a mounting plate 2 for mounting the motor assembly, and a bridge plate 3 disposed between the connecting plate 1 and the mounting plate 2 and connected to the connecting plate 1 and the mounting plate 2, respectively. Specifically, in this embodiment, the connecting plate 1 is provided with a connecting hole 100, and the bottom of the connecting plate 1 has a matching surface, the matching surface of the connecting plate 1 is attached to the connecting portion of the lifting table, and can be connected to the connecting portion of the lifting table by screws. The mounting plate 2 has a through hole 200, and after the motor assembly is mounted on the mounting plate 2, the through hole 200 can be used for the transmission rod 7 to pass through.

[0034] Further, the bridge plate 3 is a deformation part 300, and the deformation part 300 is formed by at least partially bending the bridge plate 3, and the deformation part 300 is used to make the mounting plate 2 and the connecting plate 1 flexibly connected. In other words, the deformation part 300 can be formed on one section of the bridge plate 3, or the entire bridge plate 3; that is, the deformation part 300 is formed by bending on one section of the bridge plate 3, or the deformation part 300 can be formed by bending the entire bridge plate 3, and the two ends of the deformation part 300 are respectively connected to the mounting plate 2 and the connecting plate 1, wherein the first end of the deformation part 300 can be deformed relative to the second end of the deformation part 300.

[0035] It is not difficult to understand that in the above embodiment, when the motor bracket is assembled or used, the motor assembly is first installed on the mounting plate 2, and then the connecting plate 1 is connected to the lifting table, and finally the transmission connection of the transmission rod 7 is completed; because the motor bracket is assembled and has a clearance fit with the lifting table, when the connecting plate 1 of the motor bracket is connected to the lifting table by screws, the degree of tightening of the screws and the installation position of the connecting plate 1 will inevitably cause the transmission rod 7 to be eccentric; other factors, such as the connection position accuracy of the motor assembly, the thickness error of the motor bracket, the matching accuracy of the transmission rod 7 and the input gear, and the installation technology of the installer, can all affect the concentricity between the transmission rod 7 and the input gear of the gear box of the lifting column 5.

[0036] Therefore, in the present embodiment, a bridge plate 3 is connected between the connecting plate 1 and the mounting plate 2, and the bridge plate 3 is a deformation part 300. The deformation part 300 makes the mounting plate 2 of the motor bracket and the connecting plate 1 flexibly connected, that is, the mounting plate 2 has a deformable activity space relative to the connecting plate 1 under the action of force, such as the mounting plate 2 can be flexibly floated or deformed up and down or left and right or at multiple different angles; in this way, after the motor bracket is installed, there is an assembly error between the connecting plate 1 and the lifting table due to the assembly gap or clearance fit, or due to the fit of the transmission rod 7 of the motor assembly. The matching error caused by precision makes the transmission eccentricity of the transmission rod 7; however, because the mounting plate 2 and the connecting plate 1 of the motor bracket connecting the motor assembly are flexibly connected, when the motor drives the transmission rod 7 to rotate, the radial force exerted on the transmission rod 7 due to the transmission eccentricity forces the mounting plate 2 to deform laterally accordingly or adaptively, thereby achieving the effect of continuously adjusting and correcting the transmission center of the transmission rod 7, thereby alleviating or partially offsetting the radial force exerted on the input gear of the gear box of the lifting column 5, making the transmission smoother, thereby reducing or alleviating the noise and jitter during the transmission process of the lifting column 5.

[0037] Further in this embodiment, the connecting plate 1, the bridging plate 3 and the mounting plate 2 are formed by bending metal plates in one piece. That is, the motor bracket is formed by bending sheet metal in one piece, and the deformation portion 300 formed by bending on the bridging plate 3 is integrally arranged with the connecting plate 1 and the mounting plate 2.

[0038] It is not difficult to understand that the metal bridge plate 3 can be formed into a structure with a cross-section such as a wavy, N-shaped, V-shaped, M-shaped, Z-shaped, C-shaped, arc-shaped or irregular arc-shaped bend after one or more bending processes. The structure has deformation ability, similar to the spring effect.

[0039] In the embodiment of the present application, the cross section of the deformation portion 300 is at least partially V-shaped. Figure 1 to Figure 6 As shown, such an arrangement enables the mounting plate 2 to have a better deformation effect relative to the connecting plate 1, and has a simple structure, a simple production process, and a low manufacturing cost.

[0040] In some embodiments, the cross section of the deformation portion 300 is arc-shaped, such as Figure 7 and Figure 8 As shown, the entire bridge plate 3 only needs two bends to form the deformation portion 300 , and its structure is simple and easy to process.

[0041] Similarly, the deformation portion 300 on the bridge plate 3 may be at least one section of the bridge plate 3, or may be the entire bridge plate 3. In the embodiment of the present application, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the deformation portion 300 is formed by bending the bridge plate 3 as a whole, so that the deformation effect between the mounting plate 2 and the connecting plate 1 is better. When subjected to the radial force of the transmission eccentricity, the mounting plate 2 can be better deformed flexibly along with the transmission rod 7 to alleviate the radial force on the input gear of the gear box.

[0042] In other embodiments, a plurality of deformation portions 300 may be provided on the bridging plate 3 to improve the deformation capability of the bridging plate 3 .

[0043] In order to further improve the flexibility of the motor bracket mounting plate 2, as Figure 1 As shown, the deformation portion 300 is provided with at least one slot 301 extending along the length direction of the bridge plate 3 and penetrating the bridge plate 3. Specifically in this embodiment, the number of the slots 301 is two, and the number of the slots 301 can be set according to the actual width of the bridge plate 3. The provision of the slots 301 improves the flexibility of the mounting plate 2 relative to the connecting plate 1, not only in the longitudinal direction ( Figure 4 The deformation performance is good in the lateral direction of the motor bracket ( Figure 6 In addition, the arrangement of the slotted hole 301 also reduces the weight of the motor bracket.

[0044] Furthermore, in this embodiment, one end of the slot 301 extends and penetrates at least a portion of the connecting plate 1, and the other end of the slot 301 extends and penetrates at least a portion of the mounting plate 2. In this way, the deformation capacity of the deformable portion 300 is improved by extending the length of the slot 301, so the structure is simple, and the deformation effect of the mounting plate 2 relative to the connecting plate 1 is better.

[0045] In this embodiment, the plane where the motor bracket connecting plate 1 is located is perpendicular to the plane where the mounting plate 2 is located. This arrangement not only allows the motor bracket to be connected to the top of the lifting column 5 of the lifting table, but also allows the motor bracket to be connected to the top of the lifting column 5 of the lifting table. Figure 1 and Figure 2 The motor bracket shown in the figure, or the motor bracket is connected to the bottom of the table board 4 of the lifting table, as shown in the figure. Figure 7 and Figure 8 The motor bracket shown in the figure, or the motor bracket is connected to the side wall of the crossbeam 6 of the lifting table, as shown in the figure Figure 5 and Figure 6 The motor bracket shown. There are many ways to connect the motor bracket to the lifting table and the connection position, which can be selected according to different installation requirements.

[0046] See also Figures 9 to 11 As shown, another embodiment of the present application discloses an electric lifting table, including a table top 4, a crossbeam 6, a base, and a lifting column 5 connecting the table top 4 and the base and used to adjust the height of the table top 4 relative to the base. The electric lifting table also includes a driving motor 8 and a transmission rod 7. The driving motor 8 is connected to the electric lifting table through a motor bracket and the driving motor 8 is connected to the transmission rod 7 in a transmission connection. The two ends of the transmission rod 7 are respectively connected to the input end of the gear box of the lifting column 5 in a transmission connection. The motor bracket adopts any of the above-mentioned motor brackets. In the embodiment of the present application, the electric lifting table is an improvement on the lifting table of the prior art. Specifically, the motor bracket of the lifting table of the prior art is replaced by the motor bracket of the above-mentioned embodiment. Therefore, after the driving motor 8, the motor bracket and the transmission rod 7 of the lifting table are installed, even if there is an assembly error caused by the assembly gap or clearance fit between the connecting plate 1 of the motor bracket and the lifting table, or a fitting error caused by the fitting accuracy of the transmission rod 7, resulting in the transmission eccentricity of the transmission rod 7; but because the motor bracket is connected to the mounting plate 2 of the driving motor 8 and the connecting plate 1 is flexibly connected, when the driving motor 8 drives the transmission rod 7 to rotate, the radial force exerted on the transmission rod 7 due to the transmission eccentricity forces the mounting plate 2 to deform laterally accordingly or adaptively, thereby achieving the effect of continuously adjusting the transmission center of the transmission rod 7, thereby alleviating or partially offsetting the radial force exerted on the input gear of the gear box of the lifting column 5, making the transmission smoother, thereby reducing or alleviating the noise and jitter during the transmission process of the lifting column 5.

[0047] In some embodiments, the connecting plate 1 of the motor bracket can be connected to the top of the lifting column 5, such as Fig.11 In other embodiments, the connecting plate 1 of the motor bracket is connected to the bottom of the table 4, such as Fig. 9 In other embodiments, the connecting plate 1 of the motor bracket may also be connected to the crossbeam 6, such as Fig.10 There are many ways to connect the motor bracket to the lifting table, which can be selected according to different installation requirements.

[0048] In the description of the embodiments of the present application, it should be noted that in the description of the present application, terms such as "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description, and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present application.

[0049] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "in the present embodiment", "specific example", or "some examples" etc. means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0050] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A motor bracket, characterized in that: It includes a connecting plate connected to the lifting table, a mounting plate for installing a power supply motor component, and a bridging plate arranged between the connecting plate and the mounting plate. The bridging plate is a deformation part, and the deformation part enables a flexible connection between the mounting plate and the connecting plate, so as to alleviate or eliminate the assembly error between the transmission rod and the gear box in the lifting column during installation.

2. The motor bracket according to claim 1, characterized in that: The connecting plate, the bridging plate and the mounting plate are formed by integrally bending a metal plate.

3. The motor bracket according to claim 2, characterized in that: The shape of the deformation portion is one or more of a wave shape, an N shape, a V shape, an M shape, a Z shape, a C shape and an n shape.

4. The motor bracket according to claim 1, characterized in that: The deformation portion is provided with at least one slot extending along the length direction of the bridge plate.

5. The motor bracket according to claim 4, characterized in that: One end of the slot hole extends and passes through at least a portion of the connecting plate, and the other end of the slot hole extends and passes through at least a portion of the mounting plate.

6. The motor bracket according to claim 1, characterized in that: The plane where the connecting plate is located is perpendicular to the plane where the mounting plate is located.

7. An electric lifting table, comprising a table top, a crossbeam, a base, and a lifting column connecting the table top and the base and used to adjust the height of the table top relative to the base, the electric lifting table also comprising a driving motor and a transmission rod, the driving motor is connected to the electric lifting table through a motor bracket and the driving motor is in transmission connection with the transmission rod, and the two ends of the transmission rod are respectively in transmission connection with the input end of the gear box of the lifting column, characterized in that: The motor bracket adopts the motor bracket described in any one of claims 1 to 6 above.

8. The electric lifting table according to claim 7, characterized in that: The connecting plate of the motor bracket is connected to the top of the lifting column, or the connecting plate of the motor bracket is connected to the bottom of the table board, or the connecting plate of the motor bracket is connected to the crossbeam.

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