Double top and lower section hand-changing lifting device and lifting method thereof

Abstract

The present invention provides a double-top, bottom-added, hand-changing lifting device and a lifting method thereof. The double-top, bottom-added, hand-changing lifting device comprises: a plurality of support pipe sections, two adjacent support pipe sections are detachably connected, and the support pipe section adjacent to the lowest support pipe section is the first support pipe section; a plurality of support assemblies are respectively arranged on the top of each support pipe section, each support assembly passes through the corresponding support pipe section in the horizontal direction, and the two ends of the support assembly extend to the outside of the support pipe section respectively, the support assemblies on the two adjacent support pipe sections are perpendicular to each other, and the support assembly on the top of the first support pipe section is the first support assembly; two hydraulic jacks are respectively located below the two ends of the first support assembly to lift the first support assembly. The double-top, bottom-added, hand-changing lifting device and a lifting method thereof provided by the present invention can not only meet the needs of a relatively high-height lifting operation condition, but also can minimize the amount of auxiliary measures, reduce labor intensity and operation difficulty, and improve safety and reliability.

Description

Technical Field

[0001] The invention relates to the technical field of lifting installation, and in particular to a double-top lower section hand-changing lifting device and a lifting method thereof. Background Art

[0002] In the field of lifting and installation, hydraulic jacks are often used to lift or lower heavy objects. However, due to the limited travel of the hydraulic jack, lifting or lowering at a greater height must be achieved through multiple hand changes. At present, the conventional hand-changing method is out-of-position hand-changing, which increases the lifting height of the hydraulic jack by adding or reducing piers under the hydraulic jack. At the same time, it is also necessary to add hand-changing piers to support the heavy objects. It has high requirements on the local position and supporting foundation of the lifted structure, consumes a lot of manpower and material resources, and has very high labor intensity, low safety and low operating efficiency. Summary of the invention

[0003] The purpose of the present invention is to provide a double-top and lower-section hand-changing lifting device and a lifting method thereof, which can greatly reduce safety risks and alleviate work labor intensity, while also effectively improving safety reliability and shortening the operation cycle.

[0004] In order to achieve the above object, the present invention provides a double-top and lower-section hand-changing lifting device, comprising:

[0005] A plurality of support pipe sections stacked in a vertical direction, wherein two adjacent support pipe sections are detachably connected, and the support pipe section adjacent to the lowest support pipe section is the first support pipe section;

[0006] A plurality of support components are respectively arranged on the top of each support pipe section, each support component penetrates the corresponding support pipe section in the horizontal direction and both ends of the support component extend outside the support pipe section respectively, the support components on two adjacent support pipe sections are perpendicular to each other, and the support component on the top of the first support pipe section is the first support component;

[0007] Two hydraulic jacks are respectively located below two ends of the first supporting assembly to lift the first supporting assembly.

[0008] Optionally, each of the supporting assemblies includes a top plate and a corbel, the corbel includes two side plates and a bottom plate, the bottom plate and the top plate are parallel to each other, one end of the two side plates are respectively connected to the opposite sides of the bottom plate, and the other ends of the two side plates are respectively connected to the opposite sides of the top plate, so that the top plate, the bottom plate and the two side plates enclose a box.

[0009] Optionally, both ends of the box body have inclined surfaces.

[0010] Optionally, the height of the supporting pipe section is smaller than the maximum stroke of the hydraulic jack.

[0011] Optionally, flanges are provided on the top and bottom of the supporting pipe segment, and two adjacent supporting pipe segments are connected via the flanges.

[0012] Optionally, the double-top lower section hand-changing lifting device further includes a basic pad block, and the basic pad block is located at the bottom of the lowest supporting pipe section.

[0013] Optionally, the initial height of the hydraulic jack is greater than the height of one of the supporting pipe sections, and the sum of the heights of two supporting pipe sections and the height of the foundation pad is greater than the initial height of the hydraulic jack.

[0014] Based on this, the present invention also provides a method for jacking using the double-top and lower-section hand-changing lifting device, comprising:

[0015] A first supporting pipe section and a second supporting pipe section are installed in a vertical direction, wherein the first supporting pipe section is located above the second supporting pipe section, and a first supporting assembly and a second supporting assembly are respectively provided on the top of the first supporting pipe section and the second supporting pipe section, so that the first supporting assembly and the second supporting assembly are perpendicular to each other;

[0016] A hydraulic jack is respectively arranged below both ends of the first supporting assembly;

[0017] The two hydraulic jacks are driven to simultaneously lift to a preset height, and a third support pipe section is installed below the second support pipe section, and a third support assembly is arranged on the third support pipe section, so that the third support assembly and the second support assembly are at a first preset angle;

[0018] Lowering the two hydraulic jacks to transfer the load to the third support pipe section, and moving the two hydraulic jacks to below the two ends of the second support assembly;

[0019] The two hydraulic jacks are driven to lift up the load simultaneously, and the third support pipe section is rotated to a second preset angle so that the third support assembly is perpendicular to the second support assembly, and the second support pipe section and the third support pipe section are connected.

[0020] Optionally, the first preset angle is equal to the second preset angle or the sum of the first preset angle and the second preset angle is 90°.

[0021] Optionally, the preset height is greater than the height of the third supporting pipe section.

[0022] In summary, in the double-top, lower-section, hand-changing lifting device provided by the present invention, by supporting components on the support pipe segments, and each support component penetrates the corresponding support pipe segment in the horizontal direction and the two ends of the support component extend to the outside of the support pipe segment respectively, the support components on the two adjacent support pipe segments are perpendicular to each other, avoiding interference between the support components and the hydraulic jack, so as to facilitate the jacking of the hydraulic jack. In addition, the present invention also provides a jacking method using the double-top, lower-section, hand-changing lifting device, which realizes the addition and rotation positioning of the support pipe segment through the appropriate rise or fall of the hydraulic jack, which can not only meet the needs of higher-height jacking working conditions, but also minimize the amount of auxiliary measures, greatly reduce labor intensity and working difficulty, and improve safety, reliability and working efficiency. In addition, the hydraulic jack can be withdrawn at any time after the jacking (descent) is completed, meeting the needs of rapid equipment turnover. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Those skilled in the art should understand that the drawings are provided for a better understanding of the present invention and do not constitute any limitation on the scope of the present invention.

[0024] Figure 1 It is a structural schematic diagram of a double-top lower section hand-changing lifting device provided by an embodiment of the present invention;

[0025] Figure 2 is a front view of a support pipe segment provided by an embodiment of the present invention;

[0026] Figure 3 is a side view of a support pipe segment provided by an embodiment of the present invention;

[0027] Figure 4 is a top view of a support pipe segment provided by an embodiment of the present invention;

[0028] Figure 5 is a top view of two adjacent support pipe sections provided by an embodiment of the present invention;

[0029] Figure 6-Figure 10 The present invention is a schematic diagram of a lifting device with double tops and lower sections and hand-changing provided in one embodiment of the present invention.

[0030] In the attached figure:

[0031] 11-first supporting pipe section; 12-second supporting pipe section; 13-third supporting pipe section; 21-first supporting assembly; 22-second supporting assembly; 23-third supporting assembly; 30-hydraulic jack; 40-flange; 50-foundation pad; 60-top plate; 70-side plate; 80-bottom plate; 90-inclined surface. DETAILED DESCRIPTION

[0032] In order to make the purpose, advantages and features of the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the drawings are all in a very simplified form and are not drawn to scale, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. In addition, the structure shown in the drawings is often a part of the actual structure. In particular, the emphasis of each drawing is different, and sometimes different proportions are used. It should also be understood that, unless otherwise specified or indicated, the terms "first", "second", "third", etc. in the specification are only used to distinguish between the various components, elements, steps, etc. in the specification, and are not used to represent the logical relationship or sequential relationship between the various components, elements, steps, etc.

[0033] like Figure 1-Figure 5 As shown, this embodiment provides a double-top and lower-section hand-changing lifting device, comprising:

[0034] A plurality of support pipe segments stacked in a vertical direction, wherein two adjacent support pipe segments are detachably connected, and the support pipe segment adjacent to the lowest support pipe segment is a first support pipe segment 11;

[0035] A plurality of support components are respectively arranged on the top of each support pipe section, each support component penetrates the corresponding support pipe section in the horizontal direction and both ends of the support component extend outside the support pipe section respectively, the support components on two adjacent support pipe sections are perpendicular to each other, and the support component on the top of the first support pipe section 11 is the first support component 21;

[0036] Two hydraulic jacks 30 are respectively located below two ends of the first supporting assembly 21 to lift the first supporting assembly 21 .

[0037] Specifically, the support pipe section can be used as a support cushion when the hydraulic jack 30 is lifted or lowered, and can also be used as a handover support pier for heavy objects during the lifting or lowering process. In this embodiment, considering the initial height of the hydraulic jack 30 and the height of the support pipe section, there are two support pipe sections, the upper support pipe section is the first support pipe section 11, and the lower support pipe section is the second support pipe section 12. A first support assembly 21 is provided on the top of the first support pipe section 11, and a second support assembly 22 is provided on the top of the second support pipe section 10. The hydraulic jack 30 is located below the first support assembly 21 and can lift the first support assembly 21, so that the first support assembly 21 can drive the first support pipe section 11 and the second support pipe section 12 to lift.

[0038] It should be understood that the present application does not limit the number of the support pipe sections, and the number is at least two. When the number of the support pipe sections is greater than three, the support assemblies on any two adjacent support pipe sections are perpendicular to each other. By making the support assemblies on the adjacent support pipe sections perpendicular to each other, the support assemblies on the support pipe section below are prevented from interfering with the hydraulic jack 30, thereby facilitating the lifting of the hydraulic jack 30. At the same time, considering the limited height of a single support pipe section, it is not convenient to set the hydraulic jack under the lowest support pipe section. The hydraulic jack 30 must be located below the support assembly adjacent to the lowest support pipe section, that is, below the second support pipe section from the bottom.

[0039] In this embodiment, flanges 40 are provided on the top and bottom of the supporting pipe segment, and two adjacent supporting pipe segments are detachably connected via the flanges 40 .

[0040] In this embodiment, the height of the supporting pipe section is smaller than the maximum stroke of the hydraulic jack 30 , so that after the hydraulic jack 30 is lifted, a new supporting pipe section can be added to the bottom of the lowest supporting pipe section.

[0041] Please continue to refer to Figure 1 The double top and lower section handover lifting device also includes a basic pad 50, which is located at the bottom of the second support pipe section 12. The basic pad 50 is used to adjust the initial height of the support pipe section to meet the matching use of the hydraulic jack 30 and the support pipe section. The thickness of the basic pad 50 can be adjusted according to parameters such as the initial height and stroke of the hydraulic jack 30 and the height of the support pipe section.

[0042] In this embodiment, the initial height of the hydraulic jack 30 is greater than the height of one of the supporting pipe sections, and the sum of the heights of the two supporting pipe sections and the height of the foundation pad 50 is greater than the initial height of the hydraulic jack 30, so that the hydraulic jack 30 can be placed under the first supporting assembly 21.

[0043] In this embodiment, the support assembly is in the shape of a long strip, the top of the support pipe section has a notch, the support assembly passes through the notch in the horizontal direction, and both ends of the support assembly are respectively located outside the support pipe section, so as to be lifted by the hydraulic jack 30. The support assembly and the support pipe section can be connected by welding.

[0044] Please continue to refer to Figure 2-Figure 4Each of the support assemblies includes a top plate 60 and a corbel, the corbel includes two side plates 70 and a bottom plate 80, the bottom plate 80 and the top plate 60 are parallel to each other, one end of the two side plates 70 are respectively connected to the two opposite sides of the bottom plate 80, and the other ends of the two side plates 70 are respectively connected to the two opposite sides of the top plate 60, so that the top plate 60, the bottom plate 80 and the two side plates 70 are enclosed into a box. By designing the support assembly as a box structure, the strength and rigidity of the support assembly can be greatly increased, and the support assembly can be prevented from bending during the lifting process.

[0045] Preferably, combined Figure 1-Figure 2 Both ends of the box body have inclined surfaces 90, which can not only ensure that the support assembly has sufficient rigidity and strength, but also save materials and reduce the weight of the support assembly.

[0046] Based on this, please refer to Figure 6-Figure 10 , and combined with Figure 4-Figure 6 The present application also provides a method for jacking using a double-top lower section hand-changing lifting device, comprising:

[0047] Step S1: Install the first supporting pipe section 11 and the second supporting pipe section 12 in the vertical direction, wherein the first supporting pipe section 11 is located above the second supporting pipe section 12, and the first supporting assembly 21 and the second supporting assembly 22 are respectively disposed on the top of the first supporting pipe section 11 and the second supporting pipe section 12, so that the first supporting assembly 21 and the second supporting assembly 22 are perpendicular to each other;

[0048] Step S2: a hydraulic jack 30 is respectively arranged below both ends of the first supporting assembly 21;

[0049] Step S3: driving the two hydraulic jacks 30 to simultaneously lift to a preset height, installing a third support pipe section 13 below the second support pipe section 12, the third support pipe section 13 being provided with a third support assembly 23, so that the third support assembly 23 and the second support assembly 22 are at a first preset angle;

[0050] Step S4: lowering the two hydraulic jacks 30 to transfer the load to the third supporting pipe section 13, and moving the two hydraulic jacks 30 to below the two ends of the second supporting assembly 22;

[0051] Step S5: driving the two hydraulic jacks 30 to lift the load simultaneously, and rotating the third support pipe section 13 to a second preset angle so that the third support assembly 23 is perpendicular to the second support assembly 22 , and connecting the second support pipe section 12 and the third support pipe section 13 .

[0052] Specifically, first perform step S1, connect the first supporting pipe section 11 and the second supporting pipe section 12, pre-install the first supporting assembly 21 and the second supporting assembly 22 on the first supporting pipe section 11 and the second supporting pipe section 12, respectively, and rotate the first supporting pipe section 11 so that the first supporting assembly 21 and the second supporting assembly 22 are perpendicular to each other.

[0053] Then, step S2 is performed to respectively set a hydraulic jack 30 below both ends of the first support assembly 21. In this embodiment, a basic pad can be set below the second support pipe section 12 to increase the height of the first support pipe section 11 and the second support pipe section 12, and then the hydraulic jack 30 is pushed in.

[0054] Step S3 is executed to drive the two hydraulic jacks 30 to simultaneously lift to a preset height, push the third support pipe section 13 under the second support pipe section 12, the third support pipe section 13 is provided with a third support assembly 23, and rotate the third support assembly 23 to form a first preset angle with the second support assembly 22. In this embodiment, the preset height is greater than the height of the third support pipe section 13.

[0055] Then, step S4 is executed to slightly lower the two hydraulic jacks 30 to a certain height to transfer the load to the third supporting pipe section 13 . At this time, the hydraulic jacks 30 are in a stress-free state, and the two hydraulic jacks 30 can be moved to below the two ends of the second supporting assembly 22 .

[0056] Then execute step S5, drive the two hydraulic jacks 30 to simultaneously lift the second support assembly 22 to lift the load. At this time, the third support pipe section 13 is in a stress-free state, and the third support pipe section 13 can be rotated to a second preset angle to make the third support assembly 23 perpendicular to the second support assembly 22. Finally, the second support pipe section 12 and the third support pipe section 13 are connected, completing the first section adding process.

[0057] Then, steps S3-S5 are repeated continuously, and sections can be added under the lowest supporting pipe section to continuously increase the height of the load.

[0058] It should be understood that since the hydraulic jack 30 is arranged below the first support assembly 21, it is impossible to directly make the third support assembly 23 perpendicular to the second support assembly 22 at this time. Therefore, steps S4-S5 are adopted to adjust the positional relationship between the third support assembly 23 and the second support assembly 22 on the third pipe section through the cooperation of the hydraulic jack 30 to facilitate the first section adding process.

[0059] In this embodiment, the first preset angle is equal to the second preset angle or the sum of the first preset angle and the second preset angle is 90°. The first preset angle and the second preset angle may be equal, and the first preset angle and the second preset angle are equal and both are 45°.

[0060] Or the sum of the first preset angle and the second preset angle is 90°, for example, when the first preset angle is 60°, the third support pipe segment 13 needs to be rotated 30° clockwise to make the third support assembly 23 and the second support assembly 22 perpendicular to each other.

[0061] It should be understood that the method of reducing sections (removing support pipe sections) of the double-top, lower-section, and hand-changing lifting device is opposite to the method of lifting the double-top, lower-section, and hand-changing lifting device, and this application will not go into details therein.

[0062] In summary, in the double-top, lower-section, hand-changing lifting device and its jacking method provided by the present invention, by supporting components on the support pipe segments, and each support component penetrates the corresponding support pipe segment in the horizontal direction and the two ends of the support component extend to the outside of the support pipe segment respectively, the support components on the two adjacent support pipe segments are perpendicular to each other, avoiding interference between the support components and the hydraulic jack, so as to facilitate the jacking of the hydraulic jack. In addition, the present invention also provides a jacking method using the double-top, lower-section, hand-changing lifting device, which realizes the addition and rotation positioning of the support pipe segment through the appropriate rise or fall of the hydraulic jack, which can not only meet the needs of higher-height jacking working conditions, but also minimize the amount of auxiliary measures, greatly reduce labor intensity and working difficulty, and improve safety, reliability and working efficiency. In addition, the hydraulic jack can be withdrawn at any time after the jacking (descent) is completed, meeting the needs of rapid equipment turnover.

[0063] In addition, it should be recognized that although the present invention has been disclosed as a preferred embodiment, the above embodiment is not intended to limit the present invention. For any technician familiar with the art, without departing from the scope of the technical solution of the present invention, the technical content disclosed above can be used to make many possible changes and modifications to the technical solution of the present invention, or modified into equivalent embodiments of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still belongs to the scope of protection of the technical solution of the present invention.

Claims

1. A double top and lower section hand-changing lifting device, It is characterized in that include: A plurality of support pipe sections stacked in a vertical direction, wherein two adjacent support pipe sections are detachably connected, and the support pipe section adjacent to the lowest support pipe section is the first support pipe section; A plurality of support components are respectively arranged on the top of each support pipe section, each support component penetrates the corresponding support pipe section in the horizontal direction and both ends of the support component extend outside the support pipe section respectively, the support components on two adjacent support pipe sections are perpendicular to each other, and the support component on the top of the first support pipe section is the first support component; Two hydraulic jacks are respectively located below two ends of the first support assembly to lift the first support assembly, and the height of the support pipe section is less than the maximum stroke of the hydraulic jacks; Among them, each of the supporting components includes a top plate and a corbel, the corbel includes two side plates and a bottom plate, the bottom plate and the top plate are parallel to each other, one end of the two side plates are respectively connected to the opposite sides of the bottom plate, and the other ends of the two side plates are respectively connected to the opposite sides of the top plate, so that the top plate, the bottom plate and the two side plates enclose a box.

2. The double-top lower section hand-changing lifting device as claimed in claim 1, It is characterized in that Both ends of the box body have inclined surfaces.

3. The double-top, lower-section, hand-changing lifting device according to claim 1, It is characterized in that The top and the bottom of the supporting pipe section are both provided with flanges, and two adjacent supporting pipe sections are connected by the flanges.

4. The double-top, lower-section, hand-changing lifting device according to claim 1, It is characterized in that The double-top and lower-section hand-changing lifting device also includes a basic cushion block, which is located at the bottom of the lowest supporting pipe section.

5. The double-top lower section hand-changing lifting device as claimed in claim 4, It is characterized in that The initial height of the hydraulic jack is greater than the height of one of the supporting pipe sections, and the sum of the heights of the two supporting pipe sections and the height of the foundation pad is greater than the initial height of the hydraulic jack.

6. A method for lifting using the double top and lower section hand-changing lifting device according to any one of claims 1 to 5, It is characterized in that include: A first supporting pipe section and a second supporting pipe section are installed in a vertical direction, wherein the first supporting pipe section is located above the second supporting pipe section, and a first supporting assembly and a second supporting assembly are respectively provided on the top of the first supporting pipe section and the second supporting pipe section, so that the first supporting assembly and the second supporting assembly are perpendicular to each other; A hydraulic jack is respectively arranged below both ends of the first supporting assembly; The two hydraulic jacks are driven to simultaneously lift to a preset height, and a third support pipe section is installed below the second support pipe section, and a third support assembly is arranged on the third support pipe section, so that the third support assembly and the second support assembly are at a first preset angle; Lowering the two hydraulic jacks to transfer the load to the third support pipe section, and moving the two hydraulic jacks to below the two ends of the second support assembly; The two hydraulic jacks are driven to lift up the load simultaneously, and the third support pipe section is rotated to a second preset angle so that the third support assembly is perpendicular to the second support assembly, and the second support pipe section and the third support pipe section are connected.

7. The lifting method according to claim 6, It is characterized in that The first preset angle is equal to the second preset angle or the sum of the first preset angle and the second preset angle is 90°.

8. The lifting method according to claim 6, It is characterized in that The preset height is greater than the height of the third supporting pipe section.

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