A step-ladder building assembly platform

Abstract

The application provides a step-by-step lifting building assembly work platform, which is used to solve the problems of the prior art, such as the separate setting of a lifting frame, a lifting device and a falling prevention device, complex device structure, high cost and poor stability. The building assembly work platform comprises a plurality of assembly units arranged between two concrete columns of a building to be constructed, each of the assembly units comprises a lifting frame, a falling prevention lifting assembly and a positioning guide assembly, the falling prevention lifting assembly comprises two sets of limiting mechanisms connected through a pushing hydraulic cylinder, the two sets of limiting mechanisms are in meshing limiting with limiting tooth segments on the limiting columns, and the positioning guide assembly comprises two sets of guide mechanisms arranged at two ends of the lifting frame respectively. The step-by-step lifting of the lifting frame is realized through the cooperation of the two sets of limiting mechanisms, the pushing hydraulic cylinder and the limiting tooth segments, and more than one set of limiting mechanisms is used to limit the vertical direction of the lifting frame during the lifting or lowering of the lifting frame, so that the device structure is simple, and the safety and stability are high.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of building construction, and particularly relates to a building assembly work platform capable of ascending step by step. BACKGROUND

[0002] In the existing building construction process, the construction work is usually carried out by means of setting up a scaffold or lifting a lifting basket by a crane. The scaffold setting up method needs to set up a multi-layer scaffold according to the construction requirements, and the labor intensity is large. Meanwhile, the height between two layers of the scaffold is fixed, and the workers can only work at a fixed height, which increases the construction difficulty of the workers. Although the lifting basket lifting method can meet the lifting at different heights and reduce the work difficulty of the workers, the lifting basket is prone to shaking when the workers work or walk in the lifting basket, and the stability and safety are poor.

[0003] In view of the above technical problems, more and more lifting assembly platforms are applied to the field of building construction. In the utility model patent with the publication number CN209556327U, a "lattice frame lifting platform for prefabricated building" is disclosed. The device can be lifted under the action of the lifting device according to the lifting of the prefabricated building wall, so that the lifting platform can stop at any position, meet the construction work at any height position, and the vertical sliding of the lifting platform along the frame body reduces the shaking of the lifting platform and increases the stability of the device. However, the device needs to set up a frame body when used, and the lifting platform is driven to ascend and descend along the lifting frame by the lifting device. With the lifting of the lifting platform, the lifting platform is also prone to shaking under the action of external force (such as strong wind), and the device is unstable. Meanwhile, the device needs to be separately provided with a lifting device and a falling prevention device, and the structure is complex and the cost is high. SUMMARY

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide a building assembly work platform capable of ascending step by step, which is used to solve the technical problems that the assembly work platform of the prior art is separately provided with a lifting frame, a lifting device and a falling prevention device, resulting in a complex structure, high cost and poor stability of the assembly work platform.

[0005] To achieve the above-mentioned purposes and other related purposes, the present application provides a building assembly work platform capable of ascending step by step, which comprises a plurality of assembly units, the plurality of assembly units are arranged between two concrete columns of a building to be constructed, each of the plurality of assembly units comprises a lifting frame, and:

[0006] a falling prevention and lifting assembly,

[0007] The anti-falling lifting assembly comprises two groups of limiting mechanisms arranged in the vertical direction, and a limiting column arranged on one side of the lifting frame, one group of limiting mechanisms arranged above is fixed at the bottom end of the lifting frame, and the two groups of limiting mechanisms are connected through a pushing hydraulic cylinder, and the limiting column is provided with a limiting tooth segment engaged with the two groups of limiting mechanisms.

[0008] When the two groups of limiting mechanisms are engaged with the limiting tooth segment, the two side cylinder bodies of the pushing hydraulic cylinder are alternately driven to drive the lifting frame to ascend, and when the two groups of limiting mechanisms are alternately engaged with the limiting tooth segment, the two side cylinder bodies of the pushing hydraulic cylinder are alternately driven to drive the lifting frame to descend.

[0009] A positioning and guiding assembly,

[0010] The positioning and guiding assembly comprises two groups of guiding mechanisms arranged at the two ends of the lifting frame respectively, and the two groups of guiding mechanisms are respectively slidably guided by the two concrete columns at the two ends of the lifting frame.

[0011] As an optional solution, the lifting frame comprises a bottom bearing frame, a rear guardrail, a side guardrail and a pull rod.

[0012] The rear guardrail is arranged on the side of the bottom bearing frame away from the building to be constructed, the side guardrails are arranged at the two ends of the bottom bearing frame, and the rear guardrail and the side guardrails are fixedly connected through the pull rod.

[0013] As an optional solution, the two groups of limiting mechanisms each comprise a pushing block, a limiting wheel, a guide column, a first limiting tooth, a second limiting tooth and a limiting control module.

[0014] The pushing block arranged above is fixed at the bottom end of the lifting frame, the pushing block arranged above is fixed at the bottom end of the lifting frame, the pushing hydraulic cylinder is arranged on the upper end face of the pushing block arranged below, the telescopic end of the pushing hydraulic cylinder is fixed on the lower end face of the pushing block arranged above, and a plurality of guide columns for guiding and limiting are arranged between the two pushing blocks.

[0015] The limiting wheel is rotatably arranged on the side wall of the pushing block, the limiting control module is arranged on the side wall of the pushing block, and the limiting control module is located on the side of the limiting wheel away from the limiting column.

[0016] The side wall of the limiting wheel is provided with the first limiting tooth and the second limiting tooth, the first limiting tooth is used for engaging with the limiting tooth segment to limit the vertical position of the lifting frame, and the second limiting tooth is used for cooperating with the limiting control module to control the engagement or separation of the first limiting tooth and the limiting tooth segment.

[0017] As an optional solution, the limiting control module comprises a clamping hydraulic cylinder, a clamping block, a rigid limiting block and a return spring.

[0018] The clamping hydraulic cylinder and the rigid limiting block are installed on the side wall of the push block, the clamping hydraulic cylinder is located on the side away from the limiting column, the telescopic end of the clamping hydraulic cylinder is fixed with a clamping block, and the rigid limiting block is located below the clamping block.

[0019] One end of the reset spring is hingedly installed on the side wall of the push block, and the other end of the reset spring is hingedly installed on the side wall of the limiting wheel.

[0020] As an optional solution, when the clamping hydraulic cylinder is ejected, the second limiting tooth is in abutment with the clamping block, the first limiting tooth is in engagement with the limiting tooth segment, and the reset spring is in a stretched state.

[0021] When the clamping hydraulic cylinder is retracted, the second limiting tooth is disengaged from the clamping block, the rotation of the limiting wheel causes the second limiting tooth to abut against the rigid limiting block, the first limiting tooth is disengaged from the limiting tooth segment, and the reset spring is in a stretched state.

[0022] As an optional solution, the front end of the clamping block is provided with a first driving slope, and the upper end of the second limiting tooth is provided with a second driving slope matched with the first driving slope to push the limiting wheel to rotate;

[0023] When the second limiting tooth abuts against the rigid limiting block, the first driving slope is parallel to the second driving slope.

[0024] As an optional solution, the positioning and guiding assembly comprises a clamping wheel mounting frame, a transverse positioning module and a longitudinal positioning module.

[0025] Two clamping wheel mounting frames of the two groups of guiding mechanisms are respectively fixed at two ends of the bottom bearing frame, and the clamping wheel mounting frame is arranged around the concrete column.

[0026] The longitudinal positioning module for positioning the lifting frame in the longitudinal direction is arranged between the side guardrail and the clamping wheel mounting frame, and the top end of the bottom bearing frame is provided with the transverse positioning module for positioning the clamping wheel mounting frame in the transverse direction.

[0027] As an optional solution, the longitudinal positioning module comprises a first positioning guide wheel and a second positioning guide wheel.

[0028] A plurality of first positioning guide wheels are installed on the side wall of the side guardrail close to the concrete column, and a second positioning guide wheel is installed on the side wall of the side opposite to the clamping wheel mounting frame.

[0029] The first positioning guide wheels and the second positioning guide wheels are vertically slid along the outer wall of the concrete column.

[0030] As an optional solution, the longitudinal positioning module comprises a lateral dynamic positioning guide wheel.

[0031] Two lateral dynamic positioning guide wheels of the two sets of guide mechanisms are respectively installed at two ends of the bottom load-bearing frame, and the two lateral dynamic positioning guide wheels respectively slide in the vertical direction along the two concrete columns relative to the side walls.

[0032] As an option, a hydraulic oil supply assembly for supplying hydraulic power to the pushing hydraulic cylinder and the clamping hydraulic cylinder is further included.

[0033] As described above, the step-by-step lifting building assembly platform has at least the following beneficial effects:

[0034] 1、The two sets of limiting mechanisms are connected by the pushing hydraulic cylinder, and when the two sets of limiting mechanisms are engaged with the limiting tooth segments, the two side cylinder bodies of the pushing hydraulic cylinder are alternately driven to drive the lifting frame to rise, and when the two sets of limiting mechanisms are alternately engaged with the limiting tooth segments, the two side cylinder bodies of the pushing hydraulic cylinder are alternately driven to drive the lifting frame to descend; during the rising or descending of the lifting frame, more than one set of limiting mechanisms is always used to limit the vertical direction of the lifting frame, and the device has simple structure and high safety and stability.

[0035] 2、The positioning guide assembly is arranged on both sides of the lifting frame to limit the horizontal and vertical directions of the lifting frame, so that the lifting platform can slide in the vertical direction along the concrete columns on both sides of the building, the lifting platform does not need to be provided with a separate lifting frame, the device has simple structure, and the concrete columns will not shake in bad weather such as strong wind, and the device has high stability.

[0036] 3、The bottom load-bearing frame and the rear guardrail of the present application are obtained by splicing and fixing a plurality of sub-modules, and can be combined according to the concrete columns on both sides during construction, and the construction of buildings with different spacings can be realized by adjusting the positions of the lateral dynamic positioning guide wheels. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 A structural schematic diagram of the building assembly platform of the present application is shown;

[0038] Figure 2 A structural schematic diagram of the assembly unit of the present application is shown;

[0039] Figure 3 A top view of the assembly unit of the present application is shown;

[0040] Figure 4 A structural schematic diagram of the lifting frame of the present application is shown;

[0041] Figure 5 A structural schematic diagram of the anti-falling lifting assembly of the building assembly platform of the present application is shown;

[0042] Figure 6 Figure 1 shows the structural schematic diagram of the anti-falling lifting assembly of the building assembly work platform of the present application when descending;

[0043] Figure 7 Figure 2 shows the structural schematic diagram of the anti-falling lifting assembly of the building assembly work platform of the present application when ascending; Figure 3 Figure 3 shows the partial enlarged view of A in Figure 2;

[0044] Figure 8 Figure 4 shows the structural schematic diagram of the anti-falling lifting assembly of the building assembly work platform of the present application when descending; Figure 4 Figure 5 shows the partial enlarged view of B in Figure 4;

[0045] Figure 9 Figure 6 shows the structural schematic diagram of the anti-falling lifting assembly of the building assembly work platform of the present application when ascending; Figure 6 Figure 7 shows the partial enlarged view of C in Figure 6.

[0046] Figure 1 shows the structural schematic diagram of the anti-falling lifting assembly of the building assembly work platform of the present application when descending;

[0047] 101 - bottom bearing frame; 102 - rear guardrail; 103 - side guardrail; 104 - pull rod;

[0048] 2 - anti-falling lifting assembly;

[0049] 201 - limiting column; 202 - pushing hydraulic cylinder; 203 - pushing block; 204 - limiting wheel; 205 - guide column; 206 - clamping hydraulic cylinder; 207 - clamping block; 208 - rigid limiting block; 209 - reset spring; 210 - limiting column mounting frame; 2011 - limiting tooth section; 2041 - first limiting tooth; 2042 - second limiting tooth; 2071 - first driving slope; 20421 - second driving slope;

[0050] 3 - positioning and guiding assembly;

[0051] 301 - holding wheel mounting frame; 302 - first positioning guide wheel; 303 - second positioning guide wheel; 304 - lateral dynamic positioning guide wheel; 3041 - fixed plate; 3042 - positioning guide wheel fixing seat; 3043 - third positioning guide wheel; 3044 - long strip-shaped fixing hole;

[0052] 4 - concrete column. DETAILED DESCRIPTION

[0053] The advantages and effects of the present application can be easily understood by those skilled in the art from the above description.

[0054] Please refer to Figures 1 to 9It is to be understood that the structures, proportions, sizes and the like shown in the drawings of the present specification are merely used to illustrate the content disclosed in the present specification, to enable those skilled in the art to understand and read, and are not used to limit the conditions for implementing the present application, and therefore do not have technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technology disclosed by the present application.

[0055] The following embodiments are only for illustration. Various embodiments can be combined, which are not limited to the content shown in the following single embodiment.

[0056] Please refer to Figure 1 , Figure 2 , Figure 5 , Figure 6 The present application provides a step-by-step lifting building assembly platform, comprising a plurality of assembly units, a plurality of assembly units are arranged between two concrete columns 4 of a building to be constructed, and each assembly unit comprises a lifting frame 1, and:

[0057] a fall-preventing lifting assembly 2,

[0058] The fall-preventing lifting assembly 2 comprises two sets of limiting mechanisms arranged in the vertical direction, and a limiting column 201 arranged on one side of the lifting frame 1. The upper set of limiting mechanisms is fixed to the bottom end of the lifting frame 1, and the two sets of limiting mechanisms are connected by a pushing hydraulic cylinder 202. The limiting column 201 is provided with a limiting tooth segment 2011 which engages with the two sets of limiting mechanisms.

[0059] When the two sets of limiting mechanisms are engaged with the limiting tooth segment 2011, the two side cylinders of the pushing hydraulic cylinder 202 are alternately driven to drive the lifting frame 1 to rise. When the two sets of limiting mechanisms are alternately engaged with the limiting tooth segment 2011, the two side cylinders of the pushing hydraulic cylinder 202 are alternately driven to drive the lifting frame 1 to descend.

[0060] a positioning and guiding assembly 3,

[0061] The positioning and guiding assembly 3 comprises two sets of guiding mechanisms arranged at the two ends of the lifting frame 1, respectively. The two sets of guiding mechanisms are respectively slidably guided by the two concrete columns 4 at the two ends of the lifting frame 1.

[0062] In the examples of the present application, the assembly units can be installed between two concrete columns 4 according to the construction requirements on site, facilitating the construction operation. The limiting column 1 is fixed on the limiting column mounting frame 210, the limiting column mounting frame 210 is installed on one side of the lifting frame 1, and when the assembly unit is installed: two groups of guide mechanisms are slidably sleeved on the two concrete columns 4 to limit the transverse and longitudinal directions of the lifting frame 1, and the anti-falling lifting assembly 2 drives the lifting frame 1 to slide in the vertical direction along the concrete column 4, while the anti-falling lifting assembly 2 limits the falling of the lifting frame 1.

[0063] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 , the lifting frame 1 comprises a bottom bearing frame 101, a rear guardrail 102, a side guardrail 103, and a pull rod 104.

[0064] The rear guardrail 102 is installed on the side of the bottom bearing frame 101 away from the building to be constructed, the two ends of the bottom bearing frame 101 are both provided with a side guardrail 103, and the rear guardrail 102 and the side guardrail 103 are fixedly connected through the pull rod 104.

[0065] In the examples of the present application, the rear guardrail 102 and the side guardrail 103 can effectively ensure the safety of the workers, and the bottom bearing frame 101 and the rear guardrail 102 are both fixed by a plurality of sub-modules, which can be assembled and fixed according to the different distances of the concrete columns 5 of the building during the construction operation, so as to be suitable for various building operation needs.

[0066] Please refer to Figure 5 、 Figure 6 、 Figure 9 , the two groups of limiting mechanisms each comprise a push block 203, a limiting wheel 204, a guide column 205, a first limiting tooth 2041, a second limiting tooth 2042, and a limiting control module.

[0067] The push block 203 located above is fixed at the bottom end of the lifting frame 1, the top pushing hydraulic cylinder 202 is installed on the upper end face of the push block 203 located below, the telescopic end of the top pushing hydraulic cylinder 202 is fixed on the lower end face of the push block 203 located above, and a plurality of guide columns 205 for guiding and limiting are arranged between the two push blocks.

[0068] The limiting wheel 204 is rotatably installed on the side wall of the push block 203, the limiting control module is arranged on the side wall of the push block 203, and the limiting control module is located on the side of the limiting wheel 204 away from the limiting column 201.

[0069] The side wall of the circumference of the limiting wheel 204 is provided with a first limiting tooth 2041 and a second limiting tooth 2042, the first limiting tooth 2041 is used for meshing with the limiting tooth segment 2011 to limit the vertical position of the lifting frame 1, and the second limiting tooth 2042 is used for cooperating with the limiting control module to control the meshing or separation of the first limiting tooth 2041 and the limiting tooth segment 2011.

[0070] Please refer to Figure 5 、 Figure 6 、 Figure 9 , the limiting control module comprises a clamping hydraulic cylinder 206, a clamping block 207, a rigid limiting block 208 and a reset spring 209.

[0071] The clamping hydraulic cylinder 206 and the rigid limiting block 208 are both installed on the side wall of the push block 203, the clamping hydraulic cylinder 206 is located on the side of the limiting wheel 204 away from the limiting column 201, the telescopic end of the clamping hydraulic cylinder 206 is fixed with the clamping block 207, and the rigid limiting block 208 is located below the clamping block 207.

[0072] One end of the reset spring 209 is hingedly installed on the side wall of the push block 203, and the other end of the reset spring 209 is hingedly installed on the side wall of the limiting wheel 204.

[0073] Please refer to Figure 5 、 Figure 6 、 Figure 9 , when the clamping hydraulic cylinder 206 is ejected, the second limiting tooth 2042 abuts against the clamping block 207, the first limiting tooth 2041 meshes with the limiting tooth segment 2011, and the reset spring 209 is in a stretched state.

[0074] When the clamping hydraulic cylinder 206 is retracted, the second limiting tooth 2042 is disengaged from the clamping block 207, the limiting wheel 204 rotates to make the second limiting tooth 2042 abut against the rigid limiting block 208, the first limiting tooth 2041 is disengaged from the limiting tooth segment 2011, and the reset spring 209 is in a stretched state.

[0075] In the examples of the present application, the number of guide columns 205 is 2, the guide columns 205 are installed on the upper push block 203 and guide and limit the lower push block 203, and the reset spring 209 is in a stretched state at both positions and is used for driving the limiting wheel 204 to rotate.

[0076] In the examples of the present application, the steps of lifting the lifting frame 1 upward are as follows:

[0077] S1.1: Two clamping hydraulic cylinders 206 are ejected, and the first limiting tooth 2041 of the two sets of limiting mechanisms all meshes with the limiting tooth segment 2011.

[0078] S1.2: oil is supplied to the cylinder body at the lower end of the pushing hydraulic cylinder 202, the limiting mechanism located above is pushed and the lifting frame 1 moves upward;

[0079] S1.3: oil is supplied to the cylinder body at the upper end of the pushing hydraulic cylinder 202, and the oil in the cylinder body at the lower end of the pushing hydraulic cylinder 202 is pushed out, the cylinder body of the pushing hydraulic cylinder 202 and the limiting mechanism located below are pulled to move upward;

[0080] S1.4: steps S1.1-S1.4 are repeated to realize the step-by-step upward movement of the lifting frame 1.

[0081] The steps for lowering the lifting frame 1 are as follows:

[0082] S2.1: the clamping hydraulic cylinder 206 located above is retracted, the first limiting tooth 2041 of the limiting mechanism located above is disengaged from the limiting tooth segment 2011, the clamping hydraulic cylinder 206 located below is pushed out, the first limiting tooth 2041 of the limiting mechanism located below is engaged with the limiting tooth segment 2011, oil is supplied to the cylinder body at the upper end of the pushing hydraulic cylinder 202, and the limiting mechanism located above and the lifting frame 1 are pulled to move downward;

[0083] S2.2: the clamping hydraulic cylinder 206 located above is pushed out, the limiting mechanism located above is engaged with the limiting tooth segment 2011, the clamping hydraulic cylinder 206 located below is retracted, the limiting mechanism located below is disengaged from the limiting tooth segment 2011, oil is supplied to the cylinder body at the lower end of the pushing hydraulic cylinder 202, and the oil in the cylinder body at the upper end of the pushing hydraulic cylinder 202 is pushed out, and the limiting mechanism located below is pushed to move downward;

[0084] Steps S2.1-S2.2 are repeated to realize the step-by-step upward and downward movement of the lifting frame 1.

[0085] Please refer to Figure 5 , Figure 6 , the front end of the clamping block 207 is provided with a first driving slope 2071, and the upper end of the second limiting tooth 2042 is provided with a second driving slope 20421 which cooperates with the first driving slope 2071 to push the limiting wheel 204 to rotate;

[0086] When the second limiting tooth 2071 is in contact with the rigid limiting block 208, the first driving slope 2071 is parallel to the second driving slope 20421.

[0087] In the example of the present application, the initial contact between the clamping block 207 and the second limiting tooth 2071 is a surface contact by arranging the first driving slope 2071 and the second driving slope 20421, which facilitates the rotation of the limiting wheel 204 pushed by the clamping block 207.

[0088] Please refer to Figure 1 , Figure 2 ,Figure 3 、 Figure 4 、 Figure 7 、 Figure 8 The positioning and guiding assembly 3 comprises a hug wheel mounting frame 301, a transverse positioning module, and a longitudinal positioning module.

[0089] Two hug wheel mounting frames 301 of the two sets of guiding mechanisms are respectively fixed at two ends of the bottom bearing frame 101, and the hug wheel mounting frame 301 is arranged around the concrete column 4.

[0090] The longitudinal positioning module for longitudinally positioning the lifting frame 1 is arranged between the side guard 103 and the hug wheel mounting frame 301, and the top end of the bottom bearing frame 101 is provided with the transverse positioning module for transversely positioning the hug wheel mounting frame 301.

[0091] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 7 、 Figure 8 The longitudinal positioning module comprises a first positioning guide wheel 302 and a second positioning guide wheel 303.

[0092] The first positioning guide wheel 302 is installed on the side wall of the side guard 103 close to the concrete column 4, and the second positioning guide wheel 303 is installed on the side wall of the hug wheel mounting frame 301 opposite to the side guard 103.

[0093] The first positioning guide wheel 302 and the second positioning guide wheel 303 are vertically slid along the outer wall of the concrete column 4.

[0094] Please refer to Figure 7 、 Figure 8 The longitudinal positioning module comprises a lateral dynamic positioning guide wheel 304.

[0095] Two lateral dynamic positioning guide wheels 304 of the two sets of guiding mechanisms are respectively installed at two ends of the bottom bearing frame 101, and the two lateral dynamic positioning guide wheels 304 are respectively vertically slid along the side walls opposite to the two concrete columns 4.

[0096] In the example of the present application, the side guard 103 is provided with three first positioning guide wheels 302, the first positioning guide wheel 302 and the second positioning guide wheel 303 are arranged opposite to each other, and the longitudinal direction of the lifting frame 1 is limited; the two lateral dynamic positioning guide wheels 304 at two ends of the bottom bearing frame 101 limit the transverse direction of the lifting frame 1, so that the lifting frame 1 can only be vertically slid.

[0097] In the embodiment, the lateral dynamic positioning guide wheel 304 comprises a fixed plate 3041, a positioning guide wheel fixing seat 3042 mounted on the fixed plate, and a third positioning guide wheel 3043 mounted at the front end of the positioning guide wheel fixing seat 3042, and a long strip-shaped fixing hole 3044 is formed in the fixed plate 3041. The installation positions of the two groups of lateral dynamic positioning guide wheels 304 can be adjusted through the long strip-shaped fixing hole 3044, so that the limiting requirements of different interval concrete columns 4 can be met.

[0098] The building assembly work platform also comprises a hydraulic oil supply assembly for supplying hydraulic power to the pushing hydraulic cylinder 202 and the clamping hydraulic cylinder 206.

[0099] In the embodiment, the hydraulic oil supply assembly comprises hydraulic oil pumps for supplying oil to the pushing hydraulic cylinder 202 and the clamping hydraulic cylinder 206 respectively, a hydraulic oil storage tank, oil supply pipelines, an oil supply control module and the like.

[0100] In summary, in the embodiment, two groups of limiting mechanisms are arranged, and the two groups of limiting mechanisms are connected by the pushing hydraulic cylinder. When the two groups of limiting mechanisms are engaged with the limiting tooth segments for limiting, the two side cylinder bodies of the pushing hydraulic cylinder are alternately driven to drive the lifting frame to ascend. When the two groups of limiting mechanisms are alternately engaged with the limiting tooth segments for limiting, the two side cylinder bodies of the pushing hydraulic cylinder are alternately driven to drive the lifting frame to descend. During the ascending or descending process of the lifting frame, more than one group of limiting mechanisms are always used to limit the vertical direction of the lifting frame. The device has simple structure and high safety and stability.

[0101] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought of the present application should be covered by the claims of the present application.

Claims

1. A step-by-step lifting construction assembly platform, characterized in that, It includes several assembly units, each set between two concrete columns of the building to be constructed, and each assembly unit includes a lifting frame, and: Fall protection lifting components, The fall arrestor lifting assembly includes two sets of limiting mechanisms arranged vertically, and a limiting post arranged on one side of the lifting frame. The upper set of limiting mechanisms is fixed to the bottom end of the lifting frame. The two sets of limiting mechanisms are connected by a push hydraulic cylinder. The limiting post is provided with limiting tooth segments that mesh with the two sets of limiting mechanisms for limiting. When both sets of limiting mechanisms are engaged with the limiting tooth segments, the two cylinders of the push hydraulic cylinder alternately inject oil to drive the lifting frame to rise. When both sets of limiting mechanisms are engaged with the limiting tooth segments, the two cylinders of the push hydraulic cylinder alternately inject oil to drive the lifting frame to descend. Positioning guide components, The positioning and guiding assembly includes two sets of guiding mechanisms respectively disposed at both ends of the lifting frame, and the two sets of guiding mechanisms slide and guide the concrete columns at both ends of the lifting frame. Both sets of limiting mechanisms include a push block, a limiting wheel, a guide post, a first limiting tooth, a second limiting tooth, and a limiting control module; The upper push block is fixed to the bottom end of the lifting frame, the top push hydraulic cylinder is installed on the upper end face of the lower push block, the telescopic end of the top push hydraulic cylinder is fixed to the lower end face of the upper push block, and a number of guide posts for guiding and limiting are also provided between the two push blocks. The limiting wheel is rotatably mounted on the side wall of the push block, and the limiting control module is disposed on the side wall of the push block, with the limiting control module located on the side of the limiting wheel away from the limiting post. The side wall of the circumference of the limiting wheel is provided with a first limiting tooth and a second limiting tooth. The first limiting tooth is used to engage with the limiting tooth segment to limit the vertical position of the lifting frame. The second limiting tooth is used to cooperate with the limiting control module to control the engagement or disengagement of the first limiting tooth with the limiting tooth segment. The limit control module includes a locking hydraulic cylinder, a locking block, a rigid limit block, and a reset spring; The locking hydraulic cylinder and the rigid limiting block are both installed on the side wall of the push block. The locking hydraulic cylinder is located on the side of the limiting wheel away from the limiting post. The locking block is fixed to the telescopic end of the locking hydraulic cylinder. The rigid limiting block is located below the locking block. One end of the reset spring is hinged to the side wall of the push block, and the other end of the reset spring is hinged to the side wall of the limit wheel. When the positioning hydraulic cylinder pushes out, the second limiting tooth abuts against the positioning block, the first limiting tooth meshes with the limiting tooth segment, and the return spring is in a stretched state. When the positioning hydraulic cylinder retracts, the second limiting tooth disengages from the positioning block, the limiting wheel rotates to cause the second limiting tooth to abut against the rigid limiting block, the first limiting tooth disengages from the limiting tooth segment, and the reset spring is in a stretched state.

2. The step-by-step lifting construction assembly platform according to claim 1, characterized in that, The lifting frame includes a bottom support frame, a rear guardrail, side guardrails, and tie rods; A rear guardrail is installed on the side of the bottom support frame away from the building to be constructed, and side guardrails are installed at both ends of the bottom support frame. The rear guardrail and the side guardrails are fixedly connected by tie rods.

3. The step-by-step lifting construction assembly platform according to claim 1, characterized in that, The front end of the locking block is provided with a first driving inclined surface, and the upper end of the second limiting tooth is provided with a second driving inclined surface that cooperates with the first driving inclined surface to push the limiting wheel to rotate. When the second limiting tooth contacts the rigid limiting block, the first driving inclined surface is parallel to the second driving inclined surface.

4. The step-by-step lifting construction assembly platform according to claim 2, characterized in that, The positioning guide assembly includes a clamping wheel mounting bracket, a lateral positioning module, and a longitudinal positioning module; The two clamping wheel mounting brackets of the two sets of guide mechanisms are respectively fixed at both ends of the bottom load-bearing frame, and the clamping wheel mounting brackets are arranged around the concrete column; A longitudinal positioning module for longitudinal positioning of the lifting frame is provided between the side guardrail and the clamping wheel mounting frame, and a lateral positioning module for lateral positioning of the clamping wheel mounting frame is installed at the top of the bottom load-bearing frame.

5. A step-by-step lifting construction assembly platform according to claim 4, characterized in that, The longitudinal positioning module includes a first positioning guide wheel and a second positioning guide wheel; A number of first positioning guide wheels are installed on the side wall of the side guardrail near the concrete column, and a second positioning guide wheel is installed on the side wall of the clamping wheel mounting bracket opposite to the side guardrail. Several first positioning guide wheels and second positioning guide wheels slide vertically along the outer wall of the concrete column.

6. The step-by-step lifting construction assembly platform according to claim 4, characterized in that, The longitudinal positioning module includes lateral dynamic positioning guide wheels; The two lateral dynamic positioning guide wheels of the two sets of guiding mechanisms are respectively installed at both ends of the bottom load-bearing frame, and the two lateral dynamic positioning guide wheels slide vertically along the opposite side wall of the two concrete columns.

7. The step-by-step lifting construction assembly platform according to claim 1, characterized in that, It also includes a hydraulic oil supply assembly for providing hydraulic power to the jacking hydraulic cylinder and the locking hydraulic cylinder.

Images