Foldable single-motor lifting table

Abstract

The foldable single-motor lifting table comprises a first lifting stand column and a second lifting stand column and further comprises an adjustable cross beam frame and a driving rod assembly, the driving rod assembly is connected with a driving piece, and the driving piece drives the first lifting stand column and the second lifting stand column to ascend and descend synchronously through the driving rod assembly. The driving rod assembly comprises a first driving rod, a second driving rod and a telescopic rod assembly, and the two ends of the telescopic rod assembly are hinged to the first driving rod and the second driving rod correspondingly. The structure of the driving rod assembly is optimized, and the first driving rod, the second driving rod and the telescopic rod assembly are designed to be hinged, so that the first driving rod and the second driving rod can be folded and bent relative to the telescopic rod assembly, fine adjustment is allowed in the assembling process, the assembling process is simpler and faster, and time and labor are saved; meanwhile, the telescopic rod assembly is matched with the adjustable cross beam frame, so that the distance between the lifting stand columns on the two sides is adjustable, actual installation can be facilitated, the table is suitable for table tops of different sizes, and the application range is widened.

Description

Technical Field

[0001] The utility model belongs to the technical field of lifting desks, and particularly relates to a foldable single-motor lifting desk. Background Art

[0002] An electric lifting desk is an adjustable-height office desk that can be adjusted according to a person's height, sitting posture, and standing posture. To ensure that the two side columns of the lifting desk can be lifted synchronously during lifting, the power on one side is usually transmitted to the other side through the rotation of a transmission rod assembly. This design makes it troublesome, time-consuming, and laborious to align the transmission rod assembly with the two side columns during the assembly process of the lifting desk. Summary of the Invention

[0003] The purpose of the utility model is to provide a technical solution for a foldable single-motor lifting desk aiming at the deficiencies of the prior art. The structure is ingeniously and reasonably designed, with strong practicability. The structure of the drive rod assembly is optimized. The first drive rod and the second drive rod are designed to be hinged to the telescopic rod assembly, so that the first drive rod and the second drive rod can be folded and bent relative to the telescopic rod assembly, thereby allowing fine adjustment during the assembly process, making the assembly process simpler, faster, time-saving, and labor-saving. At the same time, the telescopic rod assembly cooperates with the adjustable crossbeam frame, so that the distance between the two side lifting columns can be adjusted, which is convenient for actual installation, applicable to desktops of different sizes, and expands the scope of application.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A foldable single-motor lifting desk includes a first lifting column and a second lifting column, and further includes an adjustable crossbeam frame and a drive rod assembly. The adjustable crossbeam frame is connected between the first lifting column and the second lifting column; the drive rod assembly is connected between the first lifting column and the second lifting column, and the drive rod assembly is connected to a driving member. The driving member drives the first lifting column and the second lifting column to lift synchronously through the drive rod assembly; the two lifting columns lift synchronously, improving the stability during the use of the lifting desk and avoiding shaking or tilting caused by asynchronous lifting on both sides. The adjustable crossbeam frame is connected between the two lifting columns, which can increase the overall structural stability of the lifting desk, and the length of the adjustable crossbeam frame is adjustable and can be adjusted according to actual needs;

[0006] The driving rod assembly includes a first driving rod, a second driving rod and a telescopic rod assembly. The two ends of the telescopic rod assembly are respectively hinged to the first driving rod and the second driving rod. The first driving rod is in transmission connection with the first lifting column, and the second driving rod is in transmission connection with the second lifting column. The structure of the driving rod assembly is optimized. The driving rod assembly is designed as the first driving rod, the second driving rod and the telescopic rod assembly, and the first driving rod, the second driving rod and the telescopic rod assembly are designed to be hinged, so that the first driving rod and the second driving rod can be folded and bent relative to the telescopic rod assembly, thus allowing fine adjustment during the assembly process, with strong flexibility, making the assembly process simpler and faster, saving time and effort. At the same time, the telescopic rod assembly cooperates with the adjustable crossbeam frame, so that the distance between the two lifting columns on both sides can be adjusted, which is convenient for actual installation, applicable to desktops of different sizes, and expands the scope of application.

[0007] Furthermore, the adjustable crossbeam frame includes a first crossbeam sleeve, an adjusting crossbar and a second crossbeam sleeve. One end of the first crossbeam sleeve is fixedly connected to the first lifting column, and one end of the second crossbeam sleeve is fixedly connected to the second lifting column. The adjusting crossbar is movably inserted between the first crossbeam sleeve and the second crossbeam sleeve, and the adjusting crossbar is limited and fixed to the first crossbeam sleeve and the second crossbeam sleeve through a limiting member. The structure is ingeniously designed. The first crossbeam sleeve and the second crossbeam sleeve are respectively connected to the two lifting columns. The adjusting crossbar slides freely between the two crossbeam sleeves. The length of the adjustable crossbeam frame can be adjusted by adjusting the length of the adjusting crossbar inserted into the crossbeam sleeve, which is convenient for actual assembly and can also be applicable to the installation of desktops of different sizes, improving the flexibility and adaptability of use.

[0008] Furthermore, the limiting member includes a first limiting sliding sleeve, a second limiting sliding sleeve and a limiting bolt. Limiting buckle grooves are provided on both the first crossbeam sleeve and the second crossbeam sleeve. A first limiting sliding sleeve is provided at the other end of the first crossbeam sleeve, and a second limiting sliding sleeve is provided at the other end of the second crossbeam sleeve. Limiting buckle blocks are provided on both the first limiting sliding sleeve and the second limiting sliding sleeve. Inclined guide surfaces are provided on the limiting buckle blocks. The limiting buckle blocks are matched with the limiting buckle grooves, and the limiting buckle blocks are buckled in the limiting buckle grooves to realize the buckling and fixing between the first limiting sliding sleeve and the first crossbeam sleeve and between the second limiting sliding sleeve and the second crossbeam sleeve. The limiting bolt passes through the first crossbeam sleeve, the first limiting sliding sleeve and abuts against and fixes the adjusting crossbar. The limiting bolt passes through the second crossbeam sleeve, the second limiting sleeve and abuts against and fixes the adjusting crossbar. The limiting buckle blocks correspond to the limiting buckle grooves to realize the buckling installation between the limiting sliding sleeve and the corresponding crossbeam sleeve. At the same time, inclined guide surfaces are provided on the limiting buckle blocks, and deformation slot holes are also provided on the outer sides of the limiting buckle blocks, which is more convenient for actual installation and disassembly. The design of the limiting bolt can limit and fix the adjusting crossbar between the two crossbeam sleeves after the length adjustment of the adjustable crossbeam frame is completed, ensuring the structural stability and reliability of the adjustable crossbeam frame after adjustment in place.

[0009] Furthermore, perforation grooves and support brackets are provided on both the first crossbeam sleeve and the second crossbeam sleeve. Support holes are provided on the support brackets. Multiple perforation grooves are provided on each crossbeam sleeve. The design of the perforation grooves facilitates the threading and connection of the internal wires of the lift table, making the wire layout more reasonable. The support brackets can facilitate the installation and fixation between the adjustable crossbeam frame and other components through the support holes.

[0010] Furthermore, the driving member is a motor, and the motor is connected to the first driving rod or the second driving rod. The structural design is ingenious and reasonable. The motor can be connected to one of the driving rods according to requirements, with high flexibility.

[0011] Furthermore, the telescopic rod assembly includes a first connecting rod, a guide sleeve, and a second connecting rod. One end of the first connecting rod is hinged to the first driving rod, and the other end of the first connecting rod is slidably clamped in the guide sleeve. One end of the second connecting rod is hinged to the second driving rod, and the other end of the second connecting rod is slidably clamped in the guide sleeve. Moreover, both the first connecting rod and the second connecting rod are limited and fixed to the guide sleeve through fasteners. The structural design is compact and reasonable. The two connecting rods are correspondingly connected to the two driving rods, and both the first connecting rod and the second connecting rod can slide in the guide sleeve. By adjusting the insertion length of the connecting rod in the guide sleeve, the length of the telescopic rod assembly can be adjusted. In combination with the hinge between the driving rod and the connecting rod, it is not only convenient for actual assembly and disassembly but also can adjust the overall length of the driving rod assembly according to requirements to meet the installation requirements of different-sized desktops.

[0012] Furthermore, the first connecting rod is hinged to the first driving rod through a universal joint assembly, and the second connecting rod is hinged to the second driving rod through a universal joint assembly. The universal joint assembly includes a first universal joint sleeve, a connecting block, and a second universal joint sleeve. The first universal joint sleeve is hinged to the connecting block through a horizontal connecting pin, and the second universal joint sleeve is hinged to the connecting block through a vertical connecting pin. The first universal joint sleeve is fixedly connected to the first connecting rod or the second connecting rod, and the second universal joint sleeve is fixedly connected to the first driving rod or the second driving rod. The universal joint assembly has strong flexibility and can meet the requirements of hinge connection. Moreover, through the specific design of the structure of the universal joint assembly, the two universal joint sleeves are respectively hinged to the connecting block, and exactly one of the two hinge joints is in the horizontal direction and the other is in the vertical direction. Through this universal joint assembly, it is allowed that the first connecting rod and the first driving rod, and the second connecting rod and the second driving rod can freely rotate in both the horizontal and vertical directions, greatly improving the flexibility and being more convenient for actual assembly and disassembly.

[0013] Furthermore, guiding sliders are provided at the ends of the first connecting rod and the second connecting rod extending into the guiding sleeve. Buckling grooves are provided at the ends of the first connecting rod and the second connecting rod extending into the guiding sleeve. Buckling rods are provided on the guiding sliders, and buckling portions are provided at the ends of the buckling rods. The buckling portions are buckled and connected in the buckling grooves in a matching manner. Guiding convex portions are provided on the guiding sliders, and guiding sliding grooves are provided on the inner side wall of the guiding sleeve. The guiding convex portions and the guiding sliding grooves are in one-to-one corresponding matching. The guiding convex portions are slidably clamped in the guiding sliding grooves. The buckling portions are buckled in the buckling grooves, so that the guiding sliders are buckled and installed with the first connecting rod or the second connecting rod. The assembly is convenient. At the same time, guiding convex portions are provided on the guiding sliders, and the guiding convex portions cooperate with the guiding sliding grooves, making the sliding process of the first connecting rod and the first connecting rod in the guiding sleeve smoother and more accurate, and improving the overall stability and reliability.

[0014] Furthermore, the fastener includes a limiting sleeve and a fastening sleeve. Limiting sleeves are clamped at both ends of the guiding sleeve. The first connecting rod and the second connecting rod penetrate through the corresponding limiting sleeves and extend into the guiding sleeve. Conical limiting portions are provided on the limiting sleeves. Notch grooves are provided along the length direction of the conical limiting portions. The conical limiting portions are located outside the guiding sleeve. The fastening sleeve abuts against the outside of the conical limiting portions. At the same time, the fastening sleeve is screwed with the corresponding end portion of the guiding sleeve, so that the first connecting rod and the second connecting rod are limited and fixed with the guiding sleeve. The limiting sleeve and the guiding sleeve are clamped and fixed with each other. The assembly and disassembly are convenient. And in cooperation with the design of the guiding sliding grooves in the guiding sleeve, convex portions corresponding to the guiding sliding grooves are also provided on the limiting sleeves to ensure the clamping stability and reliability. An internal threaded hole section and a conical hole section are provided in the fastening sleeve. The conical hole section corresponds to the conical limiting portion on the limiting sleeve. External threaded sections are provided on the outer side walls at both ends of the guiding sleeve. The internal threaded hole section cooperates with the external threaded section, so that the fastening sleeve can be screwed with the guiding sleeve. When the fastening sleeve is screwed with the guiding sleeve, the fastening sleeve abuts against the conical limiting portion, making the conical limiting portion closely cooperate with the first connecting rod or the second connecting rod, so that the first connecting rod and the second connecting rod can be relatively fixed with the guiding sleeve. When the length of the telescopic rod assembly needs to be adjusted, only the fastening sleeve needs to be rotated to release the limiting effect on the conical limiting portion, so that the first connecting rod and the second connecting rod retract or extend relative to each other, and the driving rod assembly is adjusted to a suitable length. After the length is adjusted, the fastening sleeve can be tightened. The use and adjustment are convenient and simple.

[0015] Furthermore, a cut surface is provided on the outer side wall of the fastening sleeve, and an extension handle is provided on the cut surface. The cut surface cooperates with the extension handle to increase the irregularity of the outer surface of the fastening sleeve, which can facilitate the rotational adjustment of the fastening sleeve.

[0016] Due to the adoption of the above technical solutions, the utility model has the following beneficial effects:

[0017] The structure of the utility model is ingeniously and reasonably designed, with strong practicability. The structure of the driving rod assembly is optimized, and the driving rod one, the driving rod two and the telescopic rod assembly are designed to be hinged, so that the driving rod one and the driving rod two can be folded and bent relative to the telescopic rod assembly, thereby allowing fine adjustment during the assembly process, making the assembly process simpler and faster, saving time and effort. At the same time, the telescopic rod assembly cooperates with the adjustable crossbeam frame, so that the distance between the two lifting columns can be adjusted, which is convenient for actual installation, applicable to desktops of different sizes, and expands the scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present utility model will be further described below in conjunction with the drawings:

[0019] Figure 1 is a schematic structural diagram of a foldable single-motor lifting table of the present utility model;

[0020] Figure 2 is Figure 1 a schematic structural diagram from another perspective;

[0021] Figure 3 is a schematic structural diagram of the position of the perforation groove on the adjustable crossbeam of the present utility model;

[0022] Figure 4 is Figure 2 a partial enlarged structural diagram at I in

[0023] Figure 5 is a schematic cross-sectional structural diagram of the fastener for limiting and fixing the connecting rod one and the guide sleeve of the present utility model;

[0024] Figure 6 is a schematic structural diagram of the fastening sleeve of the present utility model;

[0025] Figure 7 is a schematic internal cross-sectional structural diagram of the fastening sleeve of the present utility model;

[0026] Figure 8 is a schematic state structural diagram of the conical limiting part and the connecting rod one of the present utility model;

[0027] Figure 9 is a schematic structural diagram of the limiting sleeve of the present utility model;

[0028] Figure 10 is a schematic installation structural diagram of the guide slider on the connecting rod one of the present utility model;

[0029] Figure 11 is a schematic position distribution structural diagram of the buckling groove on the connecting rod one of the present utility model;

[0030] Figure 12 is a schematic structural diagram of the guide slider of the present utility model;

[0031] Figure 13 This is a schematic diagram of the internal structure of the guide sleeve in the present utility model;

[0032] Figure 14 This is a schematic diagram of the structure of the adjustable crossbeam in the present utility model;

[0033] Figure 15 This is a schematic diagram of the structure of the first limit sliding sleeve in the present utility model;

[0034] Figure 16 This is a schematic diagram of the structure of the first crossbeam sleeve in the present utility model.

[0035] In the figure: 1 - the first lifting column; 2 - the second lifting column; 3 - the adjustable crossbeam; 4 - the drive rod assembly; 5 - the first drive rod; 6 - the second drive rod; 7 - the telescopic rod assembly; 8 - the first crossbeam sleeve; 9 - the adjusting crossbar; 10 - the second crossbeam sleeve; 11 - the first limit sliding sleeve; 12 - the second limit sliding sleeve; 13 - the limit bolt; 14 - the limit buckle groove; 15 - the limit buckle block; 16 - the inclined guide surface; 17 - the perforated groove; 18 - the support bracket; 19 - the support hole; 20 - the first connecting rod; 21 - the second connecting rod; 22 - the guide sleeve; 23 - the universal joint assembly; 24 - the first universal joint sleeve; 25 - the second universal joint sleeve; 26 - the connecting block; 27 - the guide slider; 28 - the buckling groove; 29 - the buckling rod; 30 - the buckling part; 31 - the guide convex part; 32 - the guide sliding groove; 33 - the limit sleeve; 34 - the fastening sleeve; 35 - the conical limit part; 36 - the notch groove; 37 - the cutting surface; 38 - the extending handle; 39 - the driving part; 40 - the conical hole section; 41 - the internal thread hole section. Detailed implementation manners

[0036] As Figures 1 to 16 shown, a foldable single - motor lifting table of the present utility model includes the first lifting column 1 and the second lifting column 2, and further includes an adjustable crossbeam frame 3 and a drive rod assembly 4. The adjustable crossbeam frame 3 is connected between the first lifting column 1 and the second lifting column 2; the drive rod assembly 4 is connected between the first lifting column 1 and the second lifting column 2. The drive rod assembly 4 is connected to the driving part 39, and the driving part 39 drives the synchronous lifting of the first lifting column 1 and the second lifting column 2 through the drive rod assembly 4. The driving part 39 is a motor, and the motor is connected to the first drive rod 5 or the second drive rod 6. The structural design is ingenious and reasonable. The motor can be connected to one of the drive rods according to requirements, with high flexibility; the two lifting columns lift synchronously, improving the stability during the use of the lifting table and avoiding shaking or tilting caused by asynchronous lifting on both sides. The adjustable crossbeam frame 3 is connected between the two lifting columns, which can increase the overall structural stability of the lifting table, and the length of the adjustable crossbeam frame 3 is adjustable, and can be adjusted according to actual needs.

[0037] The drive rod assembly 4 includes a first drive rod 5, a second drive rod 6, and a telescopic rod assembly 7. The two ends of the telescopic rod assembly 7 are respectively hinged to the first drive rod 5 and the second drive rod 6. The first drive rod 5 is in transmission connection with the first lifting column 1, and the second drive rod 6 is in transmission connection with the second lifting column 2. The structure of the drive rod assembly 4 is optimized. The drive rod assembly 4 is designed as the first drive rod 5, the second drive rod 6, and the telescopic rod assembly 7, and the first drive rod 5 and the second drive rod 6 are designed to be hinged to the telescopic rod assembly 7, so that the first drive rod 5 and the second drive rod 6 can be folded and bent relative to the telescopic rod assembly 7, thereby allowing fine adjustment during the assembly process. It has strong flexibility and does not require complex alignment and fixing steps during the assembly process. Only need to connect the first drive rod 5 and the second drive rod 6 to the first lifting column 1 and the second lifting column 2 respectively, and then hinge the two ends of the telescopic rod assembly 7 to the corresponding drive rods respectively, making the assembly process simpler and faster, saving time and effort, reducing the skill requirements for assembly personnel. At the same time, the telescopic rod assembly 7 cooperates with the adjustable crossbeam frame 3, so that the distance between the two side lifting columns can be adjusted, which is convenient for actual installation, applicable to desktops of different sizes, and expands the scope of application.

[0038] The adjustable crossbeam frame 3 includes a first crossbeam sleeve 8, an adjusting crossbar 9, and a second crossbeam sleeve 10. One end of the first crossbeam sleeve 8 is fixedly connected to the first lifting column 1, and one end of the second crossbeam sleeve 10 is fixedly connected to the second lifting column 2. The adjusting crossbar 9 is movably inserted between the first crossbeam sleeve 8 and the second crossbeam sleeve 10, and the adjusting crossbar 9 is limited and fixed to the first crossbeam sleeve 8 and the second crossbeam sleeve 10 through a limiting member. The structure is ingeniously designed. The first crossbeam sleeve 8 and the second crossbeam sleeve 10 are respectively connected to the two lifting columns. The adjusting crossbar 9 slides freely between the two crossbeam sleeves. By adjusting the length of the adjusting crossbar 9 inserted into the crossbeam sleeve, the length of the adjustable crossbeam frame 3 can be adjusted, which is convenient for actual assembly and can also be applicable to the installation of desktops of different sizes, improving the flexibility and adaptability of use. Both the first crossbeam sleeve 8 and the second crossbeam sleeve 10 are provided with a perforation groove 17 and a support bracket 18. The support bracket 18 is provided with a support hole 19. Each crossbeam sleeve is provided with a plurality of perforation grooves 17. The design of the perforation groove 17 can facilitate the threading and connection of the internal lines of the lifting table, making the line layout more reasonable. The support bracket 18 can facilitate the installation and fixation between the adjustable crossbeam frame 3 and other components through the support hole 19.

[0039] The limiting member includes a first limiting sliding sleeve 11, a second limiting sliding sleeve 12 and a limiting bolt 13. Limiting buckle grooves 14 are provided on both the first crossbeam sleeve 8 and the second crossbeam sleeve 10. The other end of the first crossbeam sleeve 8 is provided with the first limiting sliding sleeve 11, and the other end of the second crossbeam sleeve 10 is provided with the second limiting sliding sleeve 12. Limiting buckle blocks 15 are provided on both the first limiting sliding sleeve 11 and the second limiting sliding sleeve 12. An inclined guide surface 16 is provided on the limiting buckle block 15. The limiting buckle block 15 is matched with the limiting buckle groove 14. The limiting buckle block 15 is buckled in the limiting buckle groove 14 to realize the buckling and fixing between the first limiting sliding sleeve 11 and the first crossbeam sleeve 8, and between the second limiting sliding sleeve 12 and the second crossbeam sleeve 10. The limiting bolt 13 passes through the first crossbeam sleeve 8 and the first limiting sliding sleeve 11 and is tightly fixed against the adjusting crossbar 9. The limiting bolt 13 passes through the second crossbeam sleeve 10, the second limiting sleeve and is tightly fixed against the adjusting crossbar 9. The limiting buckle block 15 corresponds to the limiting buckle groove 14 to realize the buckling installation between the limiting sliding sleeve and the corresponding crossbeam sleeve. At the same time, the inclined guide surface 16 is provided on the limiting buckle block 15, and a deformation groove hole is also provided on the outside of the limiting buckle block 15, which is more convenient for actual installation and disassembly. The design of the limiting bolt 13 can limit and fix the adjusting crossbar 9 between the two crossbeam sleeves after the length adjustment of the adjustable crossbeam frame 3 is completed, ensuring the structural stability and reliability of the adjustable crossbeam frame 3 after adjustment in place.

[0040] The telescopic rod assembly 7 includes a first connecting rod 20, a guide sleeve 22 and a second connecting rod 21. One end of the first connecting rod 20 is hinged to the first driving rod 5, and the other end of the first connecting rod 20 is slidably clamped in the guide sleeve 22. One end of the second connecting rod 21 is hinged to the second driving rod 6, and the other end of the second connecting rod 21 is slidably clamped in the guide sleeve 22. And both the first connecting rod 20 and the second connecting rod 21 are limited and fixed to the guide sleeve 22 through fasteners. The structural design is compact and reasonable. The two connecting rods are correspondingly connected to the two driving rods, and both the first connecting rod 20 and the second connecting rod 21 can slide in the guide sleeve 22. By adjusting the insertion length of the connecting rod in the guide sleeve 22, the length of the telescopic rod assembly 7 can be adjusted. Cooperating with the hinge between the driving rod and the connecting rod, it is not only convenient for actual assembly and disassembly, but also can adjust the overall length of the driving rod assembly 4 according to needs to meet the installation requirements of desktops of different sizes.

[0041] The first connecting rod 20 is hinged to the first driving rod 5 through the universal joint assembly 23, and the second connecting rod 21 is hinged to the second driving rod 6 through the universal joint assembly 23. The universal joint assembly 23 includes a first universal joint sleeve 24, a connecting block 26 and a second universal joint sleeve 25. The first universal joint sleeve 24 is hinged to the connecting block 26 through a horizontal connecting pin (not shown in the figure), and the second universal joint sleeve 25 is hinged to the connecting block 26 through a vertical connecting pin (not shown in the figure). The first universal joint sleeve 24 is fixedly connected to the first connecting rod 20 or the second connecting rod 21, and the second universal joint sleeve 25 is fixedly connected to the first driving rod 5 or the second driving rod 6. The universal joint assembly 23 has strong flexibility, can meet the requirements of articulated connection, and through the specific design of the structure of the universal joint assembly 23, the two universal joint sleeves are respectively hinged to the connecting block 26, and exactly one of the two hinge joints is in the horizontal direction and the other is in the vertical direction. Through this universal joint assembly 23, it is allowed that the first connecting rod 20 and the first driving rod 5, and the second connecting rod 21 and the second driving rod 6 can rotate freely in both the horizontal and vertical directions, greatly improving the flexibility and making the actual assembly and disassembly more convenient.

[0042] At the ends of the first connecting rod 20 and the second connecting rod 21 extending into the guide sleeve 22, guide sliders 27 are provided. At the ends of the first connecting rod 20 and the second connecting rod 21 extending into the guide sleeve 22, buckling grooves 28 are provided. On the guide slider 27, a buckling rod 29 is provided, and at the end of the buckling rod 29, a buckling portion 30 is provided. The buckling portion 30 is matched and buckled in the buckling groove 28. On the guide slider 27, a guide convex portion 31 is provided, and on the inner side wall of the guide sleeve 22, a guide chute 32 is provided. The guide convex portion 31 and the guide chute 32 are in one-to-one correspondence and matching. The guide convex portion 31 is slidably clamped in the guide chute 32. The buckling portion 30 is buckled in the buckling groove 28 to buckle and install the guide slider 27 with the first connecting rod 20 or the second connecting rod 21. The assembly is convenient. At the same time, the guide convex portion 31 is provided on the guide slider 27, and the guide convex portion 31 cooperates with the guide chute 32, making the sliding process of the first connecting rod 20 and the first connecting rod 20 in the guide sleeve 22 more stable and accurate, improving the overall stability and reliability.

[0043] The fastener includes a limit sleeve 33 and a fastening sleeve 34. Limit sleeves 33 are clamped at both ends of the guide sleeve 22. The first connecting rod 20 and the second connecting rod 21 penetrate through the corresponding limit sleeves 33 and extend into the guide sleeve 22. A conical limit portion 35 is provided on the limit sleeve 33. A notch groove 36 is provided along the length direction of the conical limit portion 35. The conical limit portion 35 is located outside the guide sleeve 22. The fastening sleeve 34 abuts against the outside of the conical limit portion 35. At the same time, the fastening sleeve 34 is threadedly connected to the corresponding end of the guide sleeve 22 to limit and fix the first connecting rod 20, the second connecting rod 21 and the guide sleeve 22. The limit sleeve 33 and the guide sleeve 22 are clamped and fixed, which is convenient for assembly and disassembly. And in cooperation with the design of the guide chute 32 in the guide sleeve 22, the limit sleeve 33 is also provided with a convex portion corresponding to the guide chute 32 to ensure the stability and reliability of the clamping. The fastening sleeve 34 is provided with an internal thread section 41 and a conical hole section 40. The conical hole section 40 corresponds to the conical limit portion 35 on the limit sleeve 33. External thread sections are provided on the outer side walls at both ends of the guide sleeve 22. The internal thread section 41 cooperates with the external thread section to realize the threaded connection between the fastening sleeve 34 and the guide sleeve 22. When the fastening sleeve 34 is threadedly connected to the guide sleeve 22, the fastening sleeve 34 abuts against the conical limit portion 35, so that the conical limit portion 35 is in close fit with the first connecting rod 20 or the second connecting rod 21, so that the first connecting rod 20 and the second connecting rod 21 can be kept relatively fixed with respect to the guide sleeve 22. When the length of the telescopic rod assembly 7 needs to be adjusted, only the fastening sleeve 34 needs to be rotated to release the limiting effect on the conical limit portion 35, so that the first connecting rod 20 and the second connecting rod 21 retract or extend relative to each other, and the driving rod assembly 4 is adjusted to a suitable length. After the length is adjusted, the fastening sleeve 34 can be tightened, and the use is convenient and simple. A cutting surface 37 is provided on the outer side wall of the fastening sleeve 34, and an extension handle 38 is provided on the cutting surface 37. The cutting surface 37 cooperates with the extension handle 38 to increase the irregularity of the outer surface of the fastening sleeve 34, which can facilitate the rotational adjustment of the fastening sleeve 34.

[0044] The structure of the present utility model is ingeniously and reasonably designed and has strong practicability. The structure of the driving rod assembly 4 is optimized. The first driving rod 5 and the second driving rod 6 are designed to be hinged to the telescopic rod assembly 7, so that the first driving rod 5 and the second driving rod 6 can be folded and bent relative to the telescopic rod assembly 7, thereby allowing fine adjustment during the assembly process, making the assembly process simpler, faster, time-saving and labor-saving. At the same time, the telescopic rod assembly 7 cooperates with the adjustable cross beam frame 3, so that the distance between the two lifting columns can be adjusted, which is convenient for actual installation and applicable to desktops of different sizes, expanding the scope of application.

[0045] The above are only specific embodiments of the present utility model, but the technical features of the present utility model are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present utility model to achieve substantially the same technical effects are all covered by the protection scope of the present utility model.

Claims

1. A foldable single-motor lifting table, comprising a first lifting column and a second lifting column, characterized in that Further comprising: An adjustable crossbeam frame, which is connected between the first lifting column and the second lifting column; A drive rod assembly, which is connected between the first lifting column and the second lifting column. The drive rod assembly is connected to a drive member, and the drive member drives the synchronous lifting of the first lifting column and the second lifting column through the drive rod assembly; The drive rod assembly includes a first drive rod, a second drive rod and a telescopic rod assembly. The two ends of the telescopic rod assembly are respectively hinged to the first drive rod and the second drive rod. The first drive rod is in transmission connection with the first lifting column, and the second drive rod is in transmission connection with the second lifting column.

2. The foldable single-motor lifting table according to claim 1, wherein: The adjustable crossbeam frame includes a first crossbeam sleeve, an adjustment crossbar and a second crossbeam sleeve. One end of the first crossbeam sleeve is fixedly connected to the first lifting column, and one end of the second crossbeam sleeve is fixedly connected to the second lifting column. The adjustment crossbar is movably inserted between the first crossbeam sleeve and the second crossbeam sleeve, and the adjustment crossbar is limited and fixed to the first crossbeam sleeve and the second crossbeam sleeve through a limiting member.

3. The foldable single-motor lifting table according to claim 2, wherein: The limiting member includes a first limiting sliding sleeve, a second limiting sliding sleeve and a limiting bolt. Limiting buckle grooves are provided on both the first crossbeam sleeve and the second crossbeam sleeve. The other end of the first crossbeam sleeve is provided with the first limiting sliding sleeve, and the other end of the second crossbeam sleeve is provided with the second limiting sliding sleeve. Limiting buckle blocks are provided on both the first limiting sliding sleeve and the second limiting sliding sleeve. Inclined guide surfaces are provided on the limiting buckle blocks. The limiting buckle blocks are matched with the limiting buckle grooves, and the limiting buckle blocks are buckled in the limiting buckle grooves to realize the buckling and fixing between the first limiting sliding sleeve and the first crossbeam sleeve and between the second limiting sliding sleeve and the second crossbeam sleeve. The limiting bolt passes through the first crossbeam sleeve, the first limiting sliding sleeve and abuts against and fixes the adjustment crossbar. The limiting bolt passes through the second crossbeam sleeve, the second limiting sliding sleeve and abuts against and fixes the adjustment crossbar.

4. The foldable single-motor lifting table according to claim 2, wherein: Perforation grooves and support brackets are provided on both the first crossbeam sleeve and the second crossbeam sleeve, and support holes are provided on the support brackets.

5. The foldable single-motor lifting table according to claim 1, wherein: The drive member is a motor, and the motor is connected to the first drive rod or the second drive rod.

6. The foldable single-motor lifting table according to claim 1, wherein: The telescopic rod assembly includes a first connecting rod, a guide sleeve and a second connecting rod. One end of the first connecting rod is hinged to the first drive rod, and the other end of the first connecting rod is slidably clamped in the guide sleeve. One end of the second connecting rod is hinged to the second drive rod, and the other end of the second connecting rod is slidably clamped in the guide sleeve. Both the first connecting rod and the second connecting rod are limited and fixed to the guide sleeve through fasteners.

7. The foldable single-motor lifting table according to claim 6, wherein: The first connecting rod is hinged to the first drive rod through a universal joint assembly, and the second connecting rod is hinged to the second drive rod through the universal joint assembly. The universal joint assembly includes a first universal joint sleeve, a connecting block and a second universal joint sleeve. The first universal joint sleeve is hinged to the connecting block through a horizontal connecting pin, and the second universal joint sleeve is hinged to the connecting block through a vertical connecting pin. The first universal joint sleeve is fixedly connected to the first connecting rod or the second connecting rod, and the second universal joint sleeve is fixedly connected to the first drive rod or the second drive rod.

8. A foldable single-motor lifting table according to claim 6, characterized in that: At the ends of the first connecting rod and the second connecting rod extending into the guide sleeve, guide sliders are provided. At the ends of the first connecting rod and the second connecting rod extending into the guide sleeve, buckling grooves are provided. On the guide sliders, buckling rods are provided. At the end of the buckling rod, a buckling portion is provided. The buckling portion is matched and buckled in the buckling groove. On the guide slider, a guiding convex portion is provided. On the inner side wall of the guide sleeve, a guiding sliding groove is provided. The guiding convex portion and the guiding sliding groove are in one-to-one correspondence and matching. The guiding convex portion is slidably clamped in the guiding sliding groove.

9. The foldable single-motor lifting table according to claim 8, wherein: The fastener includes a limiting sleeve and a fastening sleeve. The limiting sleeves are clamped at both ends of the guide sleeve. The first connecting rod and the second connecting rod penetrate through the corresponding limiting sleeves and extend into the guide sleeve. On the limiting sleeve, a conical limiting portion is provided. Along the length direction of the conical limiting portion, a notch groove is provided. The conical limiting portion is located outside the guide sleeve. The fastening sleeve abuts against the outside of the conical limiting portion. At the same time, the fastening sleeve is threadedly screwed with the corresponding end of the guide sleeve to limit and fix the first connecting rod, the second connecting rod and the guide sleeve.

10. The foldable single-motor lifting table according to claim 9, wherein: On the outer side wall of the fastening sleeve, a cutting surface is provided. On the cutting surface, an extension handle is provided.

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