Steel structure net rack jacking support

Abstract

The utility model relates to the technical field of jacking supports, and discloses a steel structure net rack jacking support which comprises a base, a lifting assembly is fixedly installed on the top of the base, a clamping assembly is fixedly installed on the top of the lifting assembly, the lifting assembly comprises a shell, the shell is fixedly installed on the top of the base, and the clamping assembly is fixedly installed on the top of the shell. A motor is fixedly installed on the inner wall of the shell, a worm is fixedly installed on an output shaft of the motor, and a worm gear is meshed with the outer wall of the worm. According to the steel structure net rack jacking support, firstly, after a net rack is clamped through a clamping block, a motor drives a worm to rotate, the worm drives a worm gear to rotate, the worm gear drives a first threaded rod to rotate, and the first threaded rod rotates to drive a threaded sleeve to move upwards in a cylinder; the connecting rod and the clamped net rack are driven to ascend and descend through the threaded sleeve, the net rack can be ascended and descended, meanwhile, the total ascending and descending height is higher, and the application range is wider.

Description

Technical Field

[0001] The utility model relates to the technical field of jacking supports, in particular to a steel structure grid jacking support. Background Art

[0002] Grid is a spatial structure formed by connecting multiple rods through nodes in a certain grid form. It has the advantages of small spatial force, light weight, high rigidity, and good earthquake resistance. It can be used as the roof of gymnasiums, theaters, exhibition halls, waiting halls, stadium stand awnings, hangars, two-way large column spacing workshops, etc. The disadvantage is that there are more rods converging on the nodes, and the production and installation are more complicated than the plane structure.

[0003] The Chinese patent number CN211058376U is a steel structure grid lifting support, including a height adjustment component, a lower support and a fixing component. A column is arranged in the middle of the upper end of the lower support, a height adjustment component is fixed on the upper end of the column, a cylinder is fixed on the upper end of the height adjustment component, and a reinforcing rib is connected between the side of the column and the upper end corner of the lower support. The utility model is provided with a fixing component, and the grid to be supported is installed in the middle of the vertical plate. The fixing clamp is pressed tightly against the lower end of the grid by the elastic force of the reset spring, and the grid is pre-fixed to avoid the need for manual support for the movement of the grid, which causes troubles in fixed installation; the utility model is provided with a height adjustment component, and the corresponding bolts are raised and lowered by rotating the fixing seat, so that the cylinder is raised and lowered to a uniform horizontal line at a suitable position, so as to ensure the consistency of the supported grid height and improve the stability of the grid support.

[0004] The above patent uses bolts for jacking, but has a problem of small maximum jacking height, resulting in a poor scope of application, so it can be improved. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a steel structure grid lifting support, which has the advantages of being able to lift to a high maximum height, and solves the problem that the maximum lifting height is small, resulting in a poor scope of application.

[0006] In order to achieve the above-mentioned purpose of raising the maximum lifting height, the utility model provides the following technical solutions:

[0007] A steel structure grid lifting support, comprising a base, a lifting assembly is fixedly installed on the top of the base, and a clamping assembly is fixedly installed on the top of the lifting assembly;

[0008] The lifting assembly includes a shell, which is fixedly installed on the top of the base, a motor is fixedly installed on the inner wall of the shell, a worm is fixedly installed on the motor output shaft, a worm is meshed with a worm wheel on the outer wall of the worm, a first threaded rod is fixedly installed on the inner wall of the worm wheel, a first bearing is fixedly installed on the outer wall of the first threaded rod, a threaded sleeve is threadedly installed on the outer wall of the first threaded rod, a cylinder is fixedly installed on the top of the shell, and a connecting rod is fixedly installed on the outer wall of the threaded sleeve.

[0009] The utility model is further configured as follows: the first bearing is fixedly mounted on the inner wall of the housing, and the worm is rotatably mounted on the inner wall of the housing.

[0010] The utility model is further configured as follows: a slide groove is provided inside the cylinder, and the connecting rod is slidably mounted with the cylinder through the slide groove of the cylinder.

[0011] The utility model is further configured as follows: the number of the connecting rods is two, the two connecting rods are symmetrically fixedly installed on the outer wall of the threaded sleeve along the vertical section of the threaded sleeve, and the threaded sleeve is slidably installed on the inner wall of the cylinder.

[0012] The utility model is further configured as follows: the clamping assembly includes a top plate, the top plate is fixedly mounted on the top of the connecting rod, a side plate is fixedly mounted on the top of the top plate, a second threaded rod is threadedly mounted on the inner surface of the side plate, a turning handle is fixedly mounted on one end of the second threaded rod, a clamping block is rotatably mounted on the other end of the second threaded rod, a rubber block is fixedly mounted on one side of the clamping block, and a sliding rod is fixedly mounted on one side of the clamping block.

[0013] The utility model is further configured as follows: a through hole slide groove is provided inside the side plate, and the slide rod is slidably mounted with the side plate through the through hole slide groove of the side plate.

[0014] The utility model is further configured as follows: the number of the side panels is two, and the two side panels are symmetrically fixedly installed on the top of the top panel along the horizontal and vertical midlines of the top panel.

[0015] Compared with the prior art, the utility model provides a steel structure grid lifting support, which has the following beneficial effects:

[0016] The steel structure grid lifting support first clamps the grid by means of a clamping block, and then drives the worm to rotate by means of a motor, which in turn drives the worm wheel to rotate, which in turn drives the first threaded rod to rotate, and the threaded sleeve is driven to move upward inside the cylinder by the rotation of the first threaded rod, and the connecting rod and the clamped grid are driven to be lifted and lowered by means of the threaded sleeve, so that the grid can be lifted and lowered, and the total lifting height is higher and the adaptability is wider.

[0017] The steel structure grid lifting support only needs to rotate the handle to drive the second threaded rod to rotate and extend it inside the side plate when clamping, and at the same time push out the clamping block and the rubber block to clamp the grid. The sliding rod can limit the rotation of the rubber block, the clamping stability performance is better, and the grid stability is better during the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0020] Figure 3 It is a schematic diagram of the top cross-sectional structure of the utility model;

[0021] Figure 4 It is a partial cross-sectional structural schematic diagram of the utility model.

[0022] In the figure: 1. base; 2. lifting assembly; 3. clamping assembly; 21. housing; 22. cylinder; 23. first threaded rod; 24. threaded sleeve; 25. connecting rod; 26. worm gear; 27. worm; 28. motor; 29. ​​first bearing; 31. top plate; 32. side plate; 33. second threaded rod; 34. handle; 35. slide rod; 36. clamping block; 37. rubber block. DETAILED DESCRIPTION

[0023] See also Figure 1-4 , Embodiment 1:

[0024] A steel structure grid lifting support, comprising a base 1, a lifting component 2 is fixedly installed on the top of the base 1, and a clamping component 3 is fixedly installed on the top of the lifting component 2;

[0025] The lifting assembly 2 includes a shell 21, which is fixedly installed on the top of the base 1. A motor 28 is fixedly installed on the inner wall of the shell 21. The model of the motor 28 is Y80M1-2. A worm 27 is fixedly installed on the output shaft of the motor 28. A worm wheel 26 is meshed on the outer wall of the worm 27. The worm wheel 26 and the worm 27 can provide self-locking ability. A first threaded rod 23 is fixedly installed on the inner wall of the worm wheel 26. A first bearing 29 is fixedly installed on the outer wall of the first threaded rod 23. A threaded sleeve 24 is threadedly installed on the outer wall of the first threaded rod 23. A cylinder 22 is fixedly installed on the top of the shell 21. The threaded sleeve 24 is guided by the cylinder 22 to avoid excessive friction between the first threaded rod 23 and the threaded sleeve 24, which causes the first threaded rod 23 to directly drive the threaded sleeve 24 to rotate. A connecting rod 25 is fixedly installed on the outer wall of the threaded sleeve 24.

[0026] Furthermore, the first bearing 29 is fixedly mounted on the inner wall of the outer shell 21, the worm 27 is rotatably mounted on the inner wall of the outer shell 21, a slide groove is opened inside the cylinder 22, and the connecting rod 25 is slidingly mounted with the cylinder 22 through the slide groove of the cylinder 22. There are two connecting rods 25, and the two connecting rods 25 are symmetrically fixedly mounted on the outer wall of the threaded sleeve 24 along the vertical section of the threaded sleeve 24, and the threaded sleeve 24 is slidably mounted on the inner wall of the cylinder 22.

[0027] Specifically, after the grid is clamped by the clamping block 36, the motor 28 drives the worm 27 to rotate, the worm 27 drives the worm wheel 26 to rotate, the worm wheel 26 drives the first threaded rod 23 to rotate, the first threaded rod 23 drives the threaded sleeve 24 to move upward inside the cylinder 22, and the threaded sleeve 24 drives the connecting rod 25 and the clamped grid to be lifted and lowered, so that the grid can be lifted and lowered, and the total lifting height is higher and the adaptability is wider.

[0028] See also Figure 1-4 , and further obtain Example 2 based on Example 1:

[0029] The clamping assembly 3 includes a top plate 31, which is fixedly installed on the top of the connecting rod 25. A side plate 32 is fixedly installed on the top of the top plate 31. A second threaded rod 33 is installed with internal threads of the side plate 32. A turning handle 34 is fixedly installed at one end of the second threaded rod 33, which can be conveniently rotated by hand through the turning handle 34. A clamping block 36 is rotatably installed at the other end of the second threaded rod 33. A rubber block 37 is fixedly installed on one side of the clamping block 36. The rubber block 37 enhances the clamping friction. A sliding rod 35 is fixedly installed on one side of the clamping block 36, and the rotation of the clamping block 36 is limited by the sliding rod 35.

[0030] Furthermore, a through-hole slide groove is opened inside the side panel 32, and the slide rod 35 is slidably installed with the side panel 32 through the through-hole slide groove of the side panel 32. There are two side panels 32, and the two side panels 32 are symmetrically fixed on the top of the top panel 31 along the horizontal and vertical midline of the top panel 31.

[0031] Specifically, when clamping, it is only necessary to rotate the handle 34 to drive the second threaded rod 33 to rotate and extend it inside the side plate 32, and at the same time push out the clamping block 36 and the rubber block 37 to clamp the grid. The sliding rod 35 can limit the rotation of the rubber block 37, and the clamping stability performance is better, and the grid stability is better during the lifting process.

[0032] In summary, the steel structure grid lifting support first clamps the grid through the clamping block 36, and then drives the worm 27 to rotate through the motor 28, drives the worm wheel 26 to rotate through the worm 27, drives the first threaded rod 23 to rotate through the worm wheel 26, and drives the threaded sleeve 24 to move upward inside the cylinder 22 through the rotation of the first threaded rod 23, and drives the connecting rod 25 and the clamped grid to be lifted and lowered through the threaded sleeve 24. When clamping, it is only necessary to rotate the handle 34 to drive the second threaded rod 33 to rotate and extend it out from the side plate 32, and at the same time push out the clamping block 36 and the rubber block 37 to clamp the grid, and the slide rod 35 can limit the rotation of the rubber block 37.

Claims

1. A steel structure grid lifting support, comprising a base (1), characterized in that: A lifting component (2) is fixedly mounted on the top of the base (1), and a clamping component (3) is fixedly mounted on the top of the lifting component (2); The lifting assembly (2) comprises a housing (21), the housing (21) being fixedly mounted on the top of the base (1), a motor (28) being fixedly mounted on the inner wall of the housing (21), a worm (27) being fixedly mounted on the output shaft of the motor (28), a worm wheel (26) being meshed on the outer wall of the worm (27), a first threaded rod (23) being fixedly mounted on the inner wall of the worm wheel (26), a first bearing (29) being fixedly mounted on the outer wall of the first threaded rod (23), a threaded sleeve (24) being threadedly mounted on the outer wall of the first threaded rod (23), a cylinder (22) being fixedly mounted on the top of the housing (21), and a connecting rod (25) being fixedly mounted on the outer wall of the threaded sleeve (24).

2. A steel structure grid lifting support according to claim 1, characterized in that: The first bearing (29) is fixedly mounted on the inner wall of the outer shell (21), and the worm (27) is rotatably mounted on the inner wall of the outer shell (21).

3. The steel structure grid lifting support according to claim 1, characterized in that: A sliding groove is provided inside the cylinder (22), and the connecting rod (25) is slidably mounted on the cylinder (22) through the sliding groove of the cylinder (22).

4. The steel structure grid lifting support according to claim 1, characterized in that: There are two connecting rods (25), and the two connecting rods (25) are symmetrically fixedly mounted on the outer wall of the threaded sleeve (24) along the vertical section of the threaded sleeve (24), and the threaded sleeve (24) is slidably mounted on the inner wall of the cylinder (22).

5. The steel structure grid lifting support according to claim 1, characterized in that: The clamping assembly (3) comprises a top plate (31), the top plate (31) being fixedly mounted on the top of the connecting rod (25), a side plate (32) being fixedly mounted on the top of the top plate (31), a second threaded rod (33) being threadedly mounted inside the side plate (32), a rotating handle (34) being fixedly mounted on one end of the second threaded rod (33), a clamping block (36) being rotatably mounted on the other end of the second threaded rod (33), a rubber block (37) being fixedly mounted on one side of the clamping block (36), and a sliding rod (35) being fixedly mounted on one side of the clamping block (36).

6. The steel structure grid lifting support according to claim 5, characterized in that: A through hole slide groove is provided inside the side plate (32), and the slide rod (35) is slidably mounted with the side plate (32) through the through hole slide groove of the side plate (32).

7. The steel structure grid lifting support according to claim 5, characterized in that: There are two side panels (32), and the two side panels (32) are symmetrically fixedly mounted on the top of the top panel (31) along the horizontal and vertical midlines of the top panel (31).

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