Integral lifting device for medium-large steel structure net rack

Abstract

The utility model relates to the technical field of net rack lifting, and discloses an integral lifting device for a middle-large size steel structure net rack, which comprises a base, a top beam, a lifting assembly and a driving assembly, the lifting assembly is foldable, the lifting assembly is connected between the base and the top beam, and the top beam is controlled by the lifting assembly to ascend and descend in the direction far away from the base. The driving assembly is connected with the lifting assembly and drives the lifting assembly to operate. In the whole using process, the lifting assembly drives the top beam to lift to achieve lifting of the net rack, in the whole using process, the lifting assembly can be directly used for supporting, a temporary supporting frame does not need to be additionally built and disassembled, lifting work of the net rack is greatly facilitated undoubtedly, use is more convenient, and the net rack lifting device is suitable for popularization and application. And the top beam has a certain span, so that a plurality of net rack supporting points on the straight line can be directly supported at the same time, the number of jacking equipment is effectively reduced, and the lower part of the net rack is kept unblocked.

Description

Technical Field

[0001] The utility model relates to the technical field of grid lifting, and more specifically to an integral lifting device for a medium-to-large steel structure grid. Background Art

[0002] During the assembly process of the steel structure grid, most of the work is done on the ground, and then it is lifted above the support column using lifting equipment and fixed to the support column to achieve installation.

[0003] At present, conventional lifting equipment is mostly composed of jacks and temporary support frames. When lifting, the jack is used to lift the grid first, and then a temporary support frame is built under the grid. Then, the jack is used to lift the temporary support frame together with the grid again, and another temporary support frame is built under the temporary support frame. This process is repeated until the assembled grid is lifted to the appropriate height.

[0004] However, the above-mentioned lifting device needs to frequently build temporary support frames when in use, which will undoubtedly greatly reduce efficiency, and the temporary support frames need to be disassembled after the lifting is completed, which is also very troublesome. In general, it still has certain limitations in use. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an integral lifting device for a medium or large steel structure grid to solve the problems existing in the above-mentioned background technology.

[0006] The utility model provides the following technical solutions: a medium and large steel structure grid integral lifting device, including a base, a top beam, a lifting assembly and a driving assembly. The lifting assembly is foldable, the lifting assembly is connected between the base and the top beam, and the lifting assembly controls the top beam to rise and fall in a direction away from the base. The driving assembly is connected to the lifting assembly, and the lifting assembly is driven to operate by the driving assembly.

[0007] Furthermore, the lifting assembly includes a support rod, a first sliding seat and a fixed seat. The first sliding seat is slidably installed on the surface of the base, and the fixed seat is fixedly installed on the lower surface of the top beam. The two ends of the support rod are respectively rotatably connected to the first sliding seat and the fixed seat. There are two groups of support rods, first sliding seats and fixed seats, and they are symmetrically distributed on both sides of the base.

[0008] Furthermore, the lifting assembly also includes a first secondary support rod and a second sliding seat. The second sliding seat is slidably installed on the lower surface of the top beam. One end of the first secondary support rod is rotatably connected to the first sliding seat, and the other end is rotatably connected to the second sliding seat.

[0009] Furthermore, a limiting rod is fixedly installed on the lower surface of the top beam, and the second sliding seat is slidably sleeved on the surface of the limiting rod.

[0010] Furthermore, the lifting assembly also includes a second secondary support rod and a third sliding seat. The third sliding seat is slidably installed on the base. One end of the second secondary support rod is rotatably connected to the third sliding seat, and the other end is rotatably connected to the middle of the support rod.

[0011] Furthermore, the driving assembly includes a motor and a double-ended screw, which is rotatably installed on the base. The two first sliding seats are threadedly connected to the double-ended screw at the same time, and the two first sliding seats are connected to the double-ended screw with left-handed threads and right-handed threads respectively. The output shaft of the motor is coaxially connected to the double-ended screw, and the double-ended screw is driven to rotate by the motor.

[0012] Furthermore, a connecting seat is installed on the side of the base, a foot support rod is rotatably installed on the surface of the connecting seat, and the end of the foot support rod away from the connecting seat can be fixed to the ground by bolts.

[0013] The technical effects and advantages of this utility model are:

[0014] 1. In the entire use process of the utility model, the lifting of the grid is achieved by driving the top beam to lift through the lifting assembly. During the entire process, the lifting assembly can be directly used for support, and there is no need to build and dismantle a temporary support frame. This undoubtedly greatly facilitates the lifting work of the grid and is more convenient to use.

[0015] 2. In the utility model, during use, the entire lifting assembly is foldable, which greatly facilitates storage, transportation and storage, and further facilitates use. In addition, the top beam has a certain span, which can directly support multiple grid support points on the straight line at the same time, thereby effectively reducing the number of jacking equipment and keeping the area below the grid unobstructed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the supporting structure of the utility model;

[0017] Figure 2 For this utility model Figure 2 A in the middle is an enlarged structural diagram;

[0018] Figure 3 This is a schematic diagram of the structure of the utility model in a folded state.

[0019] The accompanying drawings are marked as follows: 1. base; 2. top beam; 3. support rod; 4. first sliding seat; 5. fixed seat; 6. first auxiliary support rod; 7. second sliding seat; 8. limit rod; 9. second auxiliary support rod; 10. third sliding seat; 11. motor; 12. double-headed screw; 13. connecting seat; 14. foot support rod. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention must go beyond these limited embodiments. For some equivalent replacement solutions or common means, they will not be described in detail herein, but they still fall within the scope of protection of this application.

[0021] Figure 1-3 This is the best embodiment of the present invention, Figure 1-3 The utility model is further described.

[0022] A medium-to-large steel structure grid integral lifting device includes a base 1, a top beam 2, a lifting assembly and a drive assembly. The lifting assembly is foldable and connected between the base 1 and the top beam 2. The lifting assembly controls the top beam 2 to rise and fall away from the base 1 through the lifting assembly. The drive assembly is connected to the lifting assembly and drives the lifting assembly to operate through the drive assembly.

[0023] When in use, first move the entire device to the bottom of the grid to be lifted, and make the top beam 2 directly under the grid support point. Then, the driving assembly can be used to drive the lifting assembly to expand, thereby driving the top beam 2 to move upward until it contacts the grid support point. Then, the driving assembly is continued to drive the lifting assembly to further expand, thereby driving the grid to be lifted.

[0024] The lifting assembly includes a support rod 3, a first sliding seat 4 and a fixed seat 5. The first sliding seat 4 is slidably installed on the surface of the base 1, and the fixed seat 5 is fixedly installed on the lower surface of the top beam 2. The two ends of the support rod 3 are rotatably connected to the first sliding seat 4 and the fixed seat 5 respectively. There are two groups of support rods 3, first sliding seat 4 and fixed seat 5, and they are symmetrically distributed on both sides of the base 1. In this way, only the two first sliding seats 4 need to move toward the middle of the double-headed screw rod 12 at the same time to drive the bottom ends of the two support rods 3 to move, which will synchronously drive the top beam 2 to move upward.

[0025] The lifting assembly also includes a first secondary support rod 6 and a second sliding seat 7. The second sliding seat 7 is slidably installed on the lower surface of the top beam 2. One end of the first secondary support rod 6 is rotatably connected to the first sliding seat 4, and the other end is rotatably connected to the second sliding seat 7. This will share the force on the top beam 2 with the first secondary support rod 6, thereby reducing the force on the support rod 3.

[0026] A limiting rod 8 is fixedly mounted on the lower surface of the top beam 2 , and the second sliding seat 7 is slidably sleeved on the surface of the limiting rod 8 , which can limit the second sliding seat 7 .

[0027] The lifting assembly also includes a second secondary support rod 9 and a third sliding seat 10. The third sliding seat 10 is slidably installed on the base 1. One end of the second secondary support rod 9 is rotatably connected to the third sliding seat 10, and the other end is rotatably connected to the middle of the support rod 3. This will enable the force on the support rod 3 to be distributed to other places on the base 1 through the second secondary support rod 9, further reducing the force on the support rod 3.

[0028] The driving assembly includes a motor 11 and a double-ended screw 12. The double-ended screw 12 is rotatably installed on the base 1. The two first sliding seats 4 are threadedly connected to the double-ended screw 12 at the same time, and the two first sliding seats 4 are connected to the double-ended screw 12 with left-handed threads and right-handed threads respectively. The output shaft of the motor 11 is coaxially connected to the double-ended screw 12, and the double-ended screw 12 is driven to rotate by the motor 11. In this way, you only need to start the motor 11, and the motor 11 will drive the double-ended screw 12 to rotate, thereby driving the two first sliding seats 4 to move toward the middle of the double-ended screw 12 at the same time.

[0029] A connecting seat 13 is installed on the side of the base 1, and a foot support rod 14 is rotatably installed on the surface of the connecting seat 13. The end of the foot support rod 14 away from the connecting seat 13 can be fixed to the ground by bolts. In this way, the stability of the entire device can be improved by simply rotating the foot support rod 14 so that it is perpendicular to the base 1 and then fixing it to the ground with bolts.

[0030] Therefore, the complete usage process is to first move the entire device to the bottom of the grid to be lifted, and make the top beam 2 directly under the grid support point. At this time, rotate the foot support rod 14 so that it is perpendicular to the base 1, and then use bolts to fix it to the ground. In this way, the installation of the entire device is completed. After that, just start the motor 11. The motor 11 will drive the double-headed screw 12 to rotate, thereby driving the two first sliding seats 4 to move toward the middle of the double-headed screw 12 at the same time, and then drive the bottom ends of the two support rods 3 to move, which will synchronously drive the top beam 2 to move upward until it contacts the grid support point, and then continue to drive the motor 11 to rotate, which can drive the grid to lift.

[0031] It should be noted that, when in use, at least two sets of lifting devices proposed in this application should be provided, and they should be symmetrically distributed below the grid to be lifted to ensure stability.

[0032] In summary, during the entire use process, the lifting of the grid is achieved by driving the top beam 2 to lift through the lifting assembly. During the entire process, the lifting assembly can be directly used for support, and there is no need to build and dismantle a temporary support frame. This undoubtedly greatly facilitates the lifting work of the grid and is more convenient to use.

[0033] At the same time, during use, the entire lifting assembly is foldable, which greatly facilitates storage, transportation and storage, and further facilitates use. In addition, the top beam 2 has a certain span, which can directly support multiple grid support points on the straight line at the same time, thereby effectively reducing the number of jacking equipment and keeping the area below the grid unobstructed.

[0034] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation thereto. Any person skilled in the art may utilize the above disclosure to modify or remodel the present invention into equivalent embodiments. However, any simple modification, equivalent variation, or modification of the above embodiment that does not depart from the technical content of the present invention and is based on the technical essence of the present invention shall still fall within the scope of protection of the present invention.

Claims

1. A medium and large steel structure grid integral lifting device, characterized in that: The utility model comprises a base (1), a top beam (2), a lifting assembly and a driving assembly. The lifting assembly is foldable, the lifting assembly is connected between the base (1) and the top beam (2), and the lifting assembly controls the top beam (2) to move upward and downward in a direction away from the base (1). The driving assembly is connected to the lifting assembly and drives the lifting assembly to operate through the driving assembly.

2. The medium-to-large steel structure grid integral lifting device according to claim 1, characterized in that: The lifting assembly comprises a support rod (3), a first sliding seat (4) and a fixed seat (5); the first sliding seat (4) is slidably mounted on the surface of the base (1); the fixed seat (5) is fixedly mounted on the lower surface of the top beam (2); both ends of the support rod (3) are rotatably connected to the first sliding seat (4) and the fixed seat (5); the support rod (3), the first sliding seat (4) and the fixed seat (5) are each provided with two groups, and are symmetrically distributed on both sides of the base (1).

3. The device for lifting a medium or large steel structure grid as claimed in claim 2, characterized in that: The lifting assembly further comprises a first secondary support rod (6) and a second sliding seat (7), wherein the second sliding seat (7) is slidably mounted on the lower surface of the top beam (2), one end of the first secondary support rod (6) is rotatably connected to the first sliding seat (4), and the other end is rotatably connected to the second sliding seat (7).

4. The device for lifting a medium or large steel structure grid as claimed in claim 3, characterized in that: A limiting rod (8) is fixedly mounted on the lower surface of the top beam (2), and the second sliding seat (7) is slidably sleeved on the surface of the limiting rod (8).

5. The device for lifting a medium or large steel structure grid as claimed in claim 2, characterized in that: The lifting assembly further comprises a second secondary support rod (9) and a third sliding seat (10), wherein the third sliding seat (10) is slidably mounted on the base (1), one end of the second secondary support rod (9) is rotatably connected to the third sliding seat (10), and the other end is rotatably connected to the middle of the support rod (3).

6. The device for lifting a medium-to-large steel structure grid as described in any one of claims 2 to 5, characterized in that: The driving assembly comprises a motor (11) and a double-headed screw (12); the double-headed screw (12) is rotatably mounted on the base (1); two first sliding seats (4) are simultaneously threadedly connected to the double-headed screw (12); and the two first sliding seats (4) are respectively connected to the double-headed screw (12) by left-handed threads and right-handed threads; an output shaft of the motor (11) is coaxially connected to the double-headed screw (12), and the double-headed screw (12) is driven to rotate by the motor (11).

7. The medium-to-large steel structure grid integral lifting device according to claim 1, characterized in that: A connecting seat (13) is installed on the side of the base (1), a foot support rod (14) is rotatably installed on the surface of the connecting seat (13), and the end of the foot support rod (14) away from the connecting seat (13) can be fixed to the ground by bolts.

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