Linear lifting driving type electric lifting table

Abstract

The utility model discloses a linear lifting drive type electric lifting table, and relates to the technical field of lifting tables, the linear lifting drive type electric lifting table comprises a frame assembly and four lifting assemblies, the lifting assemblies are arranged at the bottom end of the frame assembly, a table top is arranged at the top end of the frame assembly, and the lifting assemblies are arranged on the table top. The lifting assemblies are located at the four corners of the frame assembly, are sleeved with shells and comprise barrels, driving motors and gear sets, the driving motors are located at the top ends in the barrels, lead screw assemblies are arranged at the bottom ends of the driving motors, and the gear sets are arranged between the lead screw assemblies and the driving motors.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lifting table technical field, concretely is a linear lifting drive type electric lifting table. BACKGROUND

[0002] With the improvement of life quality, the popularity rate of electric lifting table is increasing. The electric lifting table comprises a table board and a table frame, and the table frame comprises a frame and two table legs. The table legs can be extended and retracted to control the height position of the table board to meet the use demand of the user. The frame connects the table legs and can keep a constant distance between the table legs to avoid deformation of the table board due to the pressure of heavy objects.

[0003] The existing electric lifting table is prone to damage due to the movable mechanical structure of the lifting assembly under long-time or frequent use. The lifting assembly has many internal parts, which requires a long disassembly time and many steps. Then, the internal driving part needs to be connected with the external power supply. Most of the power supply connections are exposed, which is easy to cause the power supply connection to be disconnected or damaged. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a linear lifting drive type electric lifting table to solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A linear lifting drive type electric lifting table, the electric lifting table comprises a frame assembly and a lifting assembly. The bottom end of the frame assembly is provided with the lifting assembly, and the top end of the frame assembly is provided with a table top. The lifting assembly is provided with four lifting assemblies, which are located at the four corners of the frame assembly. The lifting assembly is provided with an outer shell. The lifting assembly comprises a cylinder, a driving motor and a gear set. The driving motor is located at the top end of the cylinder. The bottom end of the driving motor is provided with a screw rod assembly. The gear set is arranged between the screw rod assembly and the driving motor.

[0007] Specifically, the frame assembly is provided with the lifting assembly at the four corners. The lifting assembly is used to control the up-down movement of the overall structure. The frame assembly is used to connect the four lifting assemblies and act as a fixing part. The outer shell is used to protect the lifting assembly, which is convenient for users to disassemble and install. The cylinder acts as a shell part of the lifting assembly and is used to protect the internal structure. The driving motor acts as a power source and is used to control the rotation of the gear set. The gear set acts as a transmission part and is used to transmit the power of the driving motor.

[0008] The fixed end of the driving motor is fixedly connected with the inner wall of the cylinder body, the output end of the driving motor is connected with one end of the gear set, the other end of the gear set is connected with the screw rod assembly, the screw rod assembly comprises an outer sleeve, a main screw rod and a secondary screw rod, one end of the outer sleeve is connected with the gear set, the main screw rod is located in the outer sleeve, the inner wall of the outer sleeve is provided with a sliding groove, the top end of the main screw rod is provided with a connecting piece, the connecting piece is fixedly connected with the main screw rod, the connecting piece is matched with the sliding groove, the main screw rod is hollow, the secondary screw rod is located in the main screw rod, the bottom end of the main screw rod is threadedly connected with the bottom end of the cylinder body, the bottom end of the secondary screw rod is provided with a nut, the outer surface of the nut is provided with external threads, the bottom end of the main screw rod is provided with internal threads, the external threads of the nut are threadedly connected with the internal threads of the main screw rod, and the threads of the nut are matched with the secondary screw rod.

[0009] Specifically, the driving motor controls the rotation of the gear set, the gear set controls the rotation of the outer sleeve of the screw rod assembly, the outer sleeve drives the rotation of the main screw rod through the connecting piece, the bottom end of the main screw rod is threadedly connected with the bottom end of the cylinder body due to the fixed connection between the main screw rod and the connecting piece, and the main screw rod is threadedly connected with the secondary screw rod through the nut, so that the rotation of the main screw rod drives the rotation of the secondary screw rod, the threads of the secondary screw rod are matched with the threads in the nut, the external threads are threadedly connected with the internal threads in the inner wall of the main screw rod due to the external threads on the outer surface of the nut, and the pitch of the external threads and the internal threads is smaller than the pitch of the threads of the main screw rod and the secondary screw rod, so that the nut is not easy to fall off when the driving motor works, then, the secondary screw rod is fixed due to the contact between one end of the secondary screw rod and the ground, the secondary screw rod is fixed during use, one end of the secondary screw rod in contact with the ground is provided with an extension piece for increasing the contact area, the rotation of the main screw rod drives the rotation of the nut, one end of the secondary screw rod is fixed due to the contact between the secondary screw rod and the ground, and finally the effect is realized that the driving motor works and the main screw rod and the secondary screw rod simultaneously move in the same direction.

[0010] The top end of the cylinder body is provided with a power line, the power line is located at one end of the screw rod assembly of the cylinder body, the power line is in communication with the driving motor, and a plurality of embedded grooves are formed in the surface of the cylinder body.

[0011] Specifically, the input end of the power line, that is, the interface, is connected with an external wire, the input end of the power line, that is, the connecting end, is connected with the driving motor, the power line is located at the top end of the lifting assembly, so that the embedded grooves are matched with the parts in the cylinder body during installation, and quick installation and disassembly are realized.

[0012] The frame assembly comprises a frame cross beam, the frame cross beam is located at the top end of the cylinder body, the frame cross beam is internally provided with a cavity, the cavity penetrates through both ends of the frame cross beam, installation grooves are formed in the surfaces of both ends of the frame cross beam, the installation grooves are in communication with the cavity, and a plurality of installation holes are formed in the frame cross beam.

[0013] Specific, frame crossbeam is equipped with four, its four frame crossbeam and four lifting assembly form square structure, lifting assembly is located at four corners, because lifting assembly is power line at the top and extends outward, the cavity of frame crossbeam is used to place power line, mounting groove is located at the end of frame crossbeam close to lifting assembly, mounting groove is equipped with two, when connecting power line, directly adjust through mounting groove, the mounting hole on the upper surface of frame crossbeam is used to connect with table top.

[0014] The connecting shell is provided with a connecting plate on the side close to the frame crossbeam, the connecting plate is fixedly connected with the connecting shell, threaded holes are formed in the connecting plate, the frame crossbeam is bolted with the connecting plate, and an outer shell is arranged outside the connecting shell and sleeved on the connecting shell.

[0015] Specifically, the connecting shell is sleeved on the cylinder body, and a notch is formed in one side of the connecting shell for the power line to pass through, the connecting shell is welded with the connecting plate, the connecting plate is used for bolt connection of the frame crossbeam, and the user can directly operate the connecting part through the mounting groove during connection, so that the connecting part is convenient to disassemble and assemble.

[0016] The connecting beam is provided between the frame crossbeams, and the connecting beam is matched with the edge end of the frame crossbeam at two ends.

[0017] Specifically, the connecting beam is provided between the two frame crossbeams, the connecting beam is provided with connecting ends at two ends, and the length of the connecting beam itself is the same as the distance between the two frame crossbeams, so that the connecting beam can be matched with the frame body of the frame crossbeam through the connecting ends, and the connecting beam can be arranged in the middle of the two frame crossbeams and serve as a fixing part.

[0018] Compared with the prior art, the utility model has the advantages that:

[0019] 1、The utility model discloses a cylinder body outer wall embedded groove is used for being matched with the spare part in the cylinder body, not only realizes the fixation of the internal spare part, but also achieves quick installation and disassembly in subsequent use.

[0020] 2, the utility model discloses a sleeve, main screw rod, nut and vice screw rod cooperate, sleeve drives main screw rod rotation, main screw rod drives nut rotation, nut rotation will be axial movement on vice screw rod, nut rotation vice screw rod axial movement, sleeve is fixed immovably, main screw rod rotation presents axial movement, main screw rod and vice screw rod move to the same direction simultaneously, realize three -stage telescopic finally.

[0021] 3, the utility model discloses that the cavity and installation slot are set up on the frame crossbeam, and the user can directly make the frame crossbeam and the connecting plate bolt connection through the installation slot, and it is convenient to quickly install and disassemble, and the power cord is placed in the cavity of the frame crossbeam, and also can be connected through the installation slot to the power cord, and also protects the power cord. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the overall structure schematic view of the utility model;

[0023] Figure 2 It is the structure schematic view of the frame assembly of the utility model;

[0024] Figure 3 It is the structure schematic view of the shell of the utility model;

[0025] Figure 4 It is the structure schematic view of the utility model lifting assembly;

[0026] Figure 5 It is the structure schematic view of the utility model screw rod assembly;

[0027] Figure 6 It is Figure 2 The enlarged view of partial A in it;

[0028] Figure 7 It is Figure 5 The enlarged view of partial B in it.

[0029] In the drawing: 1, lifting assembly;11, cylinder;111, fitting groove;12, drive motor;13, gear set;14, power cord;15, connecting shell;16, connecting plate;17, shell;2, frame assembly;21, frame crossbeam;211, cavity;212, installation slot;213, mounting hole;22, connecting beam;23, connecting iron sheet;3, screw rod assembly;31, outer sleeve;32, main screw rod;33, vice screw rod;34, connecting piece;35, nut;4, tabletop; DETAILED DESCRIPTION

[0030] Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of protection of the utility model.

[0031] Embodiment:

[0032] As Figures 1-7 shown, the utility model provides a linear lift drive type electric lifting table, electric lifting table includes frame assembly 2 and lifting assembly 1, frame assembly 2 bottom is equipped with lifting assembly 1, frame assembly 2 top is equipped with desktop 4, lifting assembly 1 is equipped with four, lifting assembly 1 is located frame assembly 2 four corners, lifting assembly 1 is equipped with shell 17, lifting assembly 1 includes cylinder 11, drive motor 12 and gear set 13, drive motor 12 is located cylinder 11 inside top, drive motor 12 bottom is equipped with screw rod assembly 3, screw rod assembly 3 is equipped with gear set 13 between drive motor 12.

[0033] Specifically, frame assembly 2 four corners are equipped with lifting assembly 1, lifting assembly 1 is used to control the whole structure to move up and down, frame assembly 2 is used to connect four lifting assemblies 1 and act as a fixing piece, shell 17 is used to protect lifting assembly 1, and it is convenient for user to disassemble and install, cylinder 11 is used as the shell part of lifting assembly 1 for protecting internal structure, drive motor 12 is used as power source for controlling gear set 13 rotation, gear set 13 is used as transmission part for transmitting the power of drive motor 12.

[0034] As Figure 5 shown, the fixed end of drive motor 12 is fixedly connected with the inner wall of cylinder 11, the output end of drive motor 12 is connected with one end of gear set 13, the other end of gear set 13 is connected with screw rod assembly 3, screw rod assembly 3 includes sleeve 31, main screw rod 32 and auxiliary screw rod 33, one end of sleeve 31 is connected with gear set 13, main screw rod 32 is located in sleeve 31, the inner wall of sleeve 31 is equipped with sliding groove, the top end of main screw rod 32 is equipped with connecting piece 34, connecting piece 34 is fixedly connected with main screw rod 32, connecting piece 34 cooperates with sliding groove, the inside of main screw rod 32 is hollow, auxiliary screw rod 33 is located in main screw rod 32, the bottom end of main screw rod 32 is threadedly connected with the bottom end of cylinder 11, the bottom end of auxiliary screw rod 33 is equipped with nut 35, the outer surface of nut 35 is equipped with external thread, the bottom end of main screw rod 32 is equipped with internal thread, the external thread of nut 35 is threadedly connected with the internal thread of main screw rod 32, the thread of nut 35 itself cooperates with auxiliary screw rod 33.

[0035] Specifically, the driving motor 12 controls the rotation of the gear set 13, the gear set 13 controls the rotation of the outer sleeve 31 of the screw rod assembly 3, the outer sleeve 31 drives the main screw rod 32 to rotate through the connecting piece 34, because the main screw rod 32 is fixedly connected with the connecting piece 34, the bottom end of the main screw rod 32 is threadedly connected with the bottom end of the cylinder body 11, and the main screw rod 32 is threadedly connected with the auxiliary screw rod 33 through the nut 35, so that the rotation of the main screw rod 32 drives the auxiliary screw rod 33 to rotate, because the threads of the auxiliary screw rod 33 match the threads inside the nut 35, and because the outer surface of the nut 35 is provided with external threads which are threadedly connected with the internal threads on the inner wall of the main screw rod 32, and the pitch of the external threads and the internal threads is smaller than the pitch of the threads of the main screw rod 32 and the auxiliary screw rod 33, so that the nut 35 is not easy to fall off when the driving motor 12 works, then, because one end of the auxiliary screw rod 33 is in contact with the ground, the auxiliary screw rod 33 is fixed during use, and the end of the auxiliary screw rod 33 in contact with the ground is provided with an extension piece for increasing the contact area, the rotation of the main screw rod 32 drives the nut 35 to rotate, and because one end of the auxiliary screw rod 33 is fixedly in contact with the ground, the final effect is that the driving motor 12 works, and the main screw rod 32 and the auxiliary screw rod 33 simultaneously move axially in the same direction.

[0036] As shown in Figures 3-5 , the top end of the cylinder body 11 is provided with a power line 14, the power line 14 is located at one end of the cylinder body 11 away from the screw rod assembly 3, the power line 14 is in communication with the driving motor 12, and a plurality of embedded grooves 111 are formed in the surface of the cylinder body 11.

[0037] Specifically, the input end of the power line 14, that is, the interface, is connected with an external wire, the input end of the power line 14, that is, the connecting end, is connected with the driving motor 12, the power line 14 is located at the top end of the lifting assembly 1, so that it can be matched with the frame cross beam 21 during installation, the embedded grooves 111 are used to match the components inside the cylinder body 11, and quick installation and disassembly are achieved.

[0038] As shown in Figure 2 , Figure 6 , the frame assembly 2 comprises a frame cross beam 21, the frame cross beam 21 is located at the top end of the cylinder body 11, the frame cross beam 21 is internally provided with a cavity 211, the cavity 211 penetrates through both ends of the frame cross beam 21, installation grooves 212 are formed in the surfaces of both ends of the frame cross beam 21, the installation grooves 212 are in communication with the cavity 211, and a plurality of installation holes 213 are formed in the frame cross beam 21.

[0039] Specifically, the frame cross beam 21 is provided with four, and the four frame cross beams 21 and the four lifting assemblies 1 form a square structure, and the lifting assembly 1 is located at the four corners. Since the lifting assembly 1 is the power line 14 at the top end and extends outward, the cavity 211 of the frame cross beam 21 is used for placing the power line 14. The mounting groove 212 is located at one end of the frame cross beam 21 close to the lifting assembly 1. The mounting groove 212 is provided with two. When the power line 14 is connected, the mounting groove 212 is directly adjusted. The mounting hole 213 on the upper surface of the frame cross beam 21 is used for connecting with the table top 4.

[0040] As shown in Figure 3 , the connecting shell 15 is provided outside the barrel body 11. The connecting plate 16 is provided on the side of the connecting shell 15 close to the frame cross beam 21. The connecting plate 16 is fixedly connected with the connecting shell 15. Threaded holes are formed in the connecting plate 16. The frame cross beam 21 is bolted with the connecting plate 16. The connecting shell 15 is provided with an outer shell 17. The outer shell 17 is sleeved on the connecting shell 15.

[0041] Specifically, the connecting shell 15 is sleeved on the barrel body 11. The connecting shell 15 is provided with a notch on one side for the power line 14 to pass through. The connecting shell 15 is welded with the connecting plate 16. The connecting plate 16 is used for bolt connection of the frame cross beam 21. When connected, the user can directly operate the connection through the mounting groove 212. It is convenient to disassemble and install. The outer surface of the connecting shell 15 is provided with two outer shells 17. The outer shell 17 is used for protecting the lifting assembly 1. The connecting shell 15 and the outer shell 17 form a multi-layer protection structure. The two outer shells 17 are fixedly connected with one end of the main lead screw 32 and the auxiliary lead screw 33 respectively. The outermost outer shell 17 is fixedly connected with the auxiliary lead screw 33. The outer shell 17 close to the connecting shell 15 is fixedly connected with the main lead screw 32.

[0042] As shown in Figure 2 , the connecting beam 22 is provided between the frame cross beams 21. The connecting beam 22 is matched with the edge end of the frame cross beam 21 at both ends. The connecting iron plate 23 is provided at the bottom end of the frame cross beam 21. The connecting iron plate 23 is bolted with the frame cross beam 21.

[0043] Specifically, the connecting beam 22 is provided at the middle of the two frame cross beams 21. The connecting beam 22 is provided with connecting ends at both ends. The length of the connecting beam 22 itself is the same as the distance between the two frame cross beams 21. Therefore, only the connecting beam 22 is matched with the frame body of the frame cross beam 21 through the connecting end, so that the connecting beam 22 is located at the middle of the two frame cross beams 21, and acts as a fixing piece. The connecting iron plate 23 is provided with four and located at the four corners of the cross beam assembly. The connecting iron plate 23 is provided with a notch on one side for matching with the lifting assembly 1. The connecting iron plate 23 is located at the bottom end of the frame cross beam 21.

[0044] Working principle: when the staff installs, first the frame crossbeam 21 is placed in the connecting plate 16 same horizontal line, the power cord 14 is placed in the cavity 211 of frame crossbeam 21, through the installation groove 212 makes frame crossbeam 21 with connecting plate 16 bolt connection, other frame crossbeam 21 same reason, then the connecting beam 22 is placed in two frame crossbeams 21 intermediate, finally the desktop 4 is placed in frame assembly 2 Hassan, disassembly is contrary operation, wherein lifting assembly 1 is through drive motor 12 control gear set 13 rotation, gear set 13 drives outer sleeve 31 rotation, outer sleeve 31 drives main lead screw 32 rotation, main lead screw 32 drives nut 35 rotation, nut 35 and vice lead screw 33 screw connection, vice lead screw 33 one end and ground contact, make vice lead screw 33 immovable, nut 35 rotation will be axial movement on vice lead screw 33, then because nut 35 and main lead screw 32 inner wall screw connection fixed, nut 35 rotation vice lead screw 33 axial movement, main lead screw 32 and outer sleeve 31 screw connection, outer sleeve 31 immovable, main lead screw 32 will be axial movement, finally realize the effect for drive motor 12 work, main lead screw 32 main lead screw 32 and vice lead screw 33 move to the same direction simultaneously, finally realize three-stage telescopic.

[0045] Finally, it should be noted that: the above only for the preferred embodiments of the utility model have, and do not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A linear lift drive type electric lift table, characterized by: The electric lifting table comprises a frame assembly (2) and a lifting assembly (1), the bottom end of the frame assembly (2) is provided with the lifting assembly (1), the top end of the frame assembly (2) is provided with a table top (4), four lifting assemblies (1) are arranged at the four corners of the frame assembly (2), the lifting assembly (1) is provided with an outer shell (17), the lifting assembly (1) comprises a cylinder (11), a driving motor (12) and a gear set (13), the driving motor (12) is arranged at the top end of the cylinder (11), the bottom end of the driving motor (12) is provided with a lead screw assembly (3), and the lead screw assembly (3) and the driving motor (12) are provided with the gear set (13).

2. The linear lift-driven electric lift table according to claim 1, characterized in that: The fixed end of the driving motor (12) is fixedly connected with the inner wall of the cylinder (11), the output end of the driving motor (12) is connected with one end of the gear set (13), the other end of the gear set (13) is connected with the lead screw assembly (3), the lead screw assembly (3) comprises an outer sleeve (31), a main lead screw (32) and an auxiliary lead screw (33), one end of the outer sleeve (31) is connected with the gear set (13), the main lead screw (32) is located in the outer sleeve (31), the inner wall of the outer sleeve (31) is provided with a sliding groove, the top end of the main lead screw (32) is provided with a connecting piece (34), the connecting piece (34) is fixedly connected with the main lead screw (32), the connecting piece (34) is matched with the sliding groove, the main lead screw (32) is hollow, the auxiliary lead screw (33) is located in the main lead screw (32), the bottom end of the main lead screw (32) is threadedly connected with the bottom end of the cylinder (11), the bottom end of the auxiliary lead screw (33) is provided with a nut (35), the outer surface of the nut (35) is provided with external threads, the bottom end of the main lead screw (32) is provided with internal threads, the external threads of the nut (35) are threadedly connected with the internal threads of the main lead screw (32), and the threads of the nut (35) are matched with the auxiliary lead screw (33).

3. The linear lift-driven electric lift table according to claim 2, wherein: The top end of the cylinder (11) is provided with a power line (14), the power line (14) is located at one end of the lead screw assembly (3) of the cylinder (11), the power line (14) is connected with the driving motor (12), and a plurality of embedded grooves (111) are formed in the surface of the cylinder (11).

4. The linear lift-driven electric lift table according to claim 3, characterized in that: The frame assembly (2) comprises a frame cross beam (21), the frame cross beam (21) is located at the top end of the cylinder (11), the frame cross beam (21) is internally provided with a cavity (211), the cavity (211) penetrates through both ends of the frame cross beam (21), the surfaces of both ends of the frame cross beam (21) are provided with mounting grooves (212), the mounting grooves (212) are connected with the cavity (211), and a plurality of mounting holes (213) are formed in the frame cross beam (21).

5. The linear lift-driven electric lift table according to claim 4, wherein: The barrel (11) is provided with a connecting shell (15), one side of the connecting shell (15) is provided with a connecting plate (16) close to the frame cross beam (21), the connecting plate (16) is fixedly connected with the connecting shell (15), a threaded hole is formed in the connecting plate (16), the frame cross beam (21) is bolted with the connecting plate (16), and the connecting shell (15) is provided with an outer shell (17) sleeved on the connecting shell (15).

6. The linear lift-driven electric lift table according to claim 5, wherein: Connecting beams (22) are arranged between the frame cross beams (21), the two ends of the connecting beams (22) are matched with the edge ends of the frame cross beams (21), and the bottom ends of the frame cross beams (21) are provided with connecting iron plates (23) which are bolted with the frame cross beams (21).

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