Hand-operated television lifting support

Abstract

The utility model discloses a hand-operated television lifting support which comprises a base, a lifting assembly, an on-hook device, a handle and a reversing transmission mechanism, the reversing transmission mechanism comprises a first steering box, a second steering box and a transmission rod assembly, the first steering box is at least provided with an input end and two output ends, and the second steering box is at least provided with an input end and an output end. The first steering box is fixedly arranged in the inner pipe of one lifting column, one output end of the first steering box is connected with the corresponding lead screw assembly, the second steering box is fixedly arranged in the inner pipe of the other lifting column, the output end of the second steering box is connected with the corresponding lead screw assembly, and the transmission rod assembly is connected with the other output end of the first steering box and the input end of the second steering box. The handle penetrates through the inner pipe of the lifting column and is connected with the input end of the first steering box. According to the hand-operated television lifting support, synchronous lifting of the lifting assemblies is achieved through a simple reversing transmission structure, height adjustment is achieved, installation is convenient, and production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a hand -operated television lift support belongs to television mounting support technical field. BACKGROUND

[0002] With the improvement of living standards, life class household products are also constantly updated iteration, pursue comfort convenience, the television support is derived from the original fixed version into the present lift version, the television support lift truck on the market is divided into two styles, hand -operated version and electric version, the hand -operated version is rotated by manual handle, utilizes gear box rotation, drives the lead screw, makes the column lift, thereby reaches the mounting bracket on the column up and down position adjustment, makes the television reach the best viewing position, the existing hand -operated version lift support generally only has one lifting column, and the stability is poor when the television is hung, therefore, a hand -operated lift truck is disclosed in CN221323765U, which adopts the structure of double lifting columns, but the reversing structure used is too complex, and needs to be driven through multiple changes, which not only is troublesome to install, but also increases the production cost. SUMMARY

[0003] The utility model solves the technical problem that a hand -operated television lift support is provided, and synchronous lifting of the lifting assembly is realized through a simple reversing transmission structure to realize height adjustment, which is convenient to install, reduces the production cost, and can solve the deficiencies of the prior art.

[0004] The technical scheme of the utility model is as follows: a hand -operated television lift support, including base, lifting assembly, hanging device, handle, reversing transmission mechanism, the lifting assembly is a pair of lifting columns comprising outer pipes and inner pipes, the outer pipes are fixed on the base, the inner pipes are slidably connected in the outer pipes, the hanging device is installed on the inner pipes of the pair of lifting columns, the lifting columns are provided with lead screw assemblies, the input end of the reversing transmission mechanism is connected with the handle, the output end is connected with the lead screw assemblies in the two lifting columns, the reversing transmission mechanism comprises steering box one, steering box two and transmission rod assembly, the steering box one has at least one input end and two output ends, the steering box two has at least one input end and one output end, the steering box one is fixed in the inner pipe of one of the lifting columns, and one of the output ends is connected with the corresponding lead screw assembly, the steering box two is fixed in the inner pipe of the other lifting column, and the output end is connected with the corresponding lead screw assembly, the transmission rod assembly is connected with the other output end of the steering box one and the input end of the steering box two respectively, and the handle is connected with the input end of the steering box one through the inner pipe of the lifting column.

[0005] Further, the handle has a foldable handgrip, and the handle can be changed between L-shaped and Z-shaped by rotating the handle through the handgrip.

[0006] Further, the length of the transmission rod assembly is adjustable.

[0007] Further comprising several connecting pipes, each of which is connected with the outer pipe of the two lifting columns.

[0008] Further, the bottom of the base is provided with several rollers.

[0009] Further, the inner side of the outer pipe is provided with a sliding sleeve between the inner pipe and the outer pipe.

[0010] By implementing the utility model, the reversing transmission mechanism only needs to have a steering box one and a steering box two respectively connected with corresponding screw rod assemblies, and a transmission rod assembly connecting the steering box one and the steering box two, when the handle drives the corresponding screw rod assembly to run through the steering box one, the corresponding screw rod assembly is driven to run synchronously through the transmission rod assembly and the steering box two, the two lifting columns are synchronously lifted to adjust the height of the hanging device and the television, the structure is simple and convenient to install, and the production cost can be effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is a three-dimensional schematic view of the utility model;

[0012] Fig. 2 It is a front view of the utility model.

[0013] As shown in the figure: base 1; handle 2; outer pipe 3; inner pipe 4; screw rod assembly 5; steering box one 6; steering box two 7; transmission rod assembly 8; hand grip 9; intermediate pipe 10; transmission rod 11; connecting pipe 12; roller 13; sliding sleeve 14; connecting piece 15; hanging piece 16. DETAILED DESCRIPTION

[0014] Embodiment of the utility model: as Figs. 1-2As shown, a hand-operated television lifting support includes a base 1, a lifting assembly, a hanging device, a handle 2, a reversing transmission mechanism, the lifting assembly is a pair of lifting columns including an outer tube 3 and an inner tube 4, the outer tube 3 is fixed on the base 1, and the inner tube 4 is slidably connected in the outer tube 3, the hanging device includes a connecting piece 15 mounted on the inner tube 4 of the pair of lifting columns and a hanging piece 16 for fixing the television, the hanging piece 16 is hung on the connecting piece 10 after fixing the television, realizing the installation of the television, a lead screw assembly 5 is arranged in the lifting column, the reversing transmission mechanism includes a steering box one 6, a steering box two 7, and a transmission rod assembly 8, the steering box one 6 and the steering box two 7 are existing bevel gear steering boxes, including a hexahedron box body and a set of umbrella-shaped gears arranged in the box body and meshing with each other, a port for the transmission rod to enter and be inserted into the corresponding umbrella-shaped gear is arranged on the box body, the steering box one 6 has one input end and two output ends, the steering box two 7 has one input end and one output end, the steering box one and the steering box two are respectively fixed in the inner tube 4 of the corresponding lifting column, the output end is connected with the corresponding lead screw assembly, the transmission rod assembly 8 is connected with the output end of the steering box one 6 and the input end of the steering box two 7, and the handle 2 is connected with the input end of the steering box one 6 through the inner tube 4 of the lifting column, the reversing transmission mechanism only needs the steering box one 6, the steering box two 7, and the transmission rod assembly 8 for connecting the steering box one 6 with the steering box two 7, when the handle 2 drives the corresponding lead screw assembly 5 to operate through the steering box one 6, the corresponding lead screw assembly 5 is synchronously operated through the transmission rod assembly 8 and the steering box two 7, realizing the synchronous lifting of the two lifting columns and the height adjustment of the hanging device and the television, the structure is simple and convenient to install, and the production cost can be effectively reduced.

[0015] As a preferred, the handle 2 has a foldable hand holding part 9, the handle 2 can be changed between the L type and the Z type as shown by rotating the hand holding part 9, the handle 2 is in the Z type when adjusting, which is convenient for force operation, and the handle 2 is kept in the L type by rotating the hand holding part 9 when not in operation, reducing the misoperation.

[0016] As a preferred, the transmission rod assembly 8 includes a middle tube 10 and transmission rods 11 slidably connected at both ends of the middle tube 10, the cross sections of the transmission rods 11 at both ends are regular polygons, respectively inserted into and connected with the output end of the steering box one 6 and the input end of the steering box two 7, the transmission rod assembly 8 is adjusted in length by fastening the transmission rods 11 at both ends to slide relative to the middle tube 10 and then fixed by fasteners, which is convenient for transmission connection between the two lifting columns.

[0017] As a preferred, two connecting tubes 12 are included, the two connecting tubes 12 are respectively connected with the outer tubes 3 of the two lifting columns, improving the connection strength and stability of the two lifting columns.

[0018] As a preferred, four rollers 13 are arranged at the four ends of the bottom of the base 1, which is convenient for moving and adjusting the position of the lifting support.

[0019] As a kind of preferred, the inner side of outer tube 3 is provided with sliding sleeve 14, sliding sleeve 14 is made of wear-resistant material such as polytetrafluoroethylene, for the convenience of installation, the inner side of the upper end of outer tube 3 is provided with clamping interface, sliding sleeve 14 is provided with clamping piece, which is installed in the inner side of the top of outer tube 3 through clamping, located between inner tube 4 and outer tube 3, fills the gap between the two, has the effect of reducing the shaking when lifting, reducing the voice produced when rubbing, and preventing foreign matter from entering.

Claims

1. A hand-cranked television lifting bracket, comprising a base, a lifting assembly, a mounting device, a handle, and a reversing transmission mechanism, wherein the lifting assembly consists of a pair of lifting columns, each comprising an outer tube and an inner tube, the outer tube being fixed to the base, the inner tube being slidably connected within the outer tube, the mounting device being installed on the inner tube of the pair of lifting columns, and a lead screw assembly being provided within the lifting columns; the input end of the reversing transmission mechanism is connected to the handle, and the output end is connected to the lead screw assembly within the two lifting columns, characterized in that: The reversing transmission mechanism comprises a steering box one, a steering box two, a transmission rod assembly, the steering box one has at least one input end and two output ends, the steering box two has at least one input end and one output end, the steering box one is fixed in the inner tube of one lifting column, one output end is connected with the corresponding screw rod assembly, the steering box two is fixed in the inner tube of the other lifting column, the output end is connected with the corresponding screw rod assembly, the transmission rod assembly is connected with the other output end of the steering box one and the input end of the steering box two respectively, the handle is connected with the input end of the steering box one through the inner tube of the lifting column.

2. The hand-cranked television lift support of claim 1, wherein: The handle has a foldable hand holding part, and the handle can be converted between L type and Z type by rotating the handle.

3. The hand-cranked television lift support of claim 1, wherein: The length of the transmission rod assembly is adjustable.

4. The hand lift television stand according to any one of claims 1 to 3, wherein: A plurality of connecting pipes are connected with the outer tubes of the two lifting columns.

5. The hand-cranked television lift support of any one of claims 1 to 3, wherein: The bottom of the base is provided with a plurality of rollers.

6. The television stand of any one of claims 1 to 3, wherein: The inner side of the outer tube is provided with a sliding sleeve between the inner tube and the outer tube. The length of the transmission rod assembly is adjustable. A plurality of connecting pipes are connected with the outer tubes of the two lifting columns. The bottom of the base is provided with a plurality of rollers. The inner side of the outer tube is provided with a sliding sleeve between the inner tube and the outer tube.

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