Precast concrete balancing weight foundation

Abstract

The utility model provides a precast concrete balancing weight foundation, which belongs to the technical field of foundation engineering, and comprises a balancing weight, the upper part of the balancing weight is provided with a lifting hook assembly, the lifting hook assembly comprises a lower lifting shaft, an upper lifting shaft and a middle lifting shaft, the periphery of the lower lifting shaft is provided with third mounting double plates, and the middle lifting shaft is provided with third mounting double plates. A second peripheral lifting hook is arranged between the third mounting double plates through an inserting shaft, a first mounting double plate and a second mounting double plate are arranged on the outer ring of a shaft body of the upper lifting shaft from top to bottom, a rope is arranged at the end of the first mounting double plate, and a first peripheral lifting hook is movably arranged on the outer ring of the second mounting double plate through an inserting shaft. The counterweight block is arranged, the body of the counterweight block is a cylinder, and the prefabricated concrete counterweight block generally adopts a cylinder appearance, so that the damage of corners in the transportation process can be effectively prevented, and meanwhile, the time of manual formwork erecting is saved by the new process, so that the construction progress is greatly accelerated. And after being processed in a factory, the steel plate can be directly transported to a construction site for hoisting.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation engineering, in particular to a prefabricated concrete counterweight block foundation. Background Art

[0002] 2At present, photovoltaic power generation systems are mainly divided into centralized photovoltaic power generation systems and distributed photovoltaic power generation systems. Distributed photovoltaic power generation systems are mainly photovoltaic power generation systems on the roofs of industrial and commercial factories and photovoltaic power generation systems on the roofs of residents. The entire industry is currently in a steady upward process. For concrete roof photovoltaic power generation systems, the main construction focus is on foundation design. For roof photovoltaic systems, counterweight foundations are mostly used. Traditional foundations mostly use formwork first and then pour concrete, and then remove the formwork after the concrete solidifies. Finally, expansion bolts are driven into the formed concrete blocks and brackets are installed. This construction process is still widely used in roof photovoltaic systems.

[0003] At present, the cast-in-place concrete counterweights used in roof photovoltaic power generation systems often need to be supported by formwork before pouring concrete. Due to the large number of foundations of roof photovoltaic systems, there are often thousands of foundations for one project, which leads to a huge workload during foundation construction at the construction site and the installation of formwork is also relatively cumbersome. Since it is roof construction, the transportation and hoisting of concrete is also a relatively large problem, and the construction period will also increase accordingly. Therefore, the traditional construction process has major defects. When using cast-in-place concrete counterweights, the surface of the formwork is uneven during formwork support or there is a phenomenon of formwork explosion during formwork installation, which directly leads to poor surface molding quality of the concrete counterweight foundation, with more honeycomb surfaces, which seriously affects the appearance and construction quality. Since on-site cast concrete is used, there will be large construction errors in the position of embedded parts, which will also have a great impact on the positioning and installation of subsequent brackets. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a prefabricated concrete counterweight block foundation that overcomes the above technical problems or at least partially solves the above problems.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a prefabricated concrete counterweight block foundation, comprising a counterweight block, wherein a hook assembly is provided on the upper portion of the counterweight block;

[0007] The hook assembly comprises:

[0008] A lower hanging shaft, wherein a third mounting double plate is arranged around the lower hanging shaft, and a second surrounding hook is arranged between the third mounting double plates through an insertion shaft;

[0009] Upper suspension shaft, on the outer circumference of the shaft body of the upper suspension shaft, a first mounting double plate and a second mounting double plate are respectively provided from top to bottom. A rope is provided at the end of the first mounting double plate. A first four-sided hook is movably provided on the outer circumference of the second mounting double plate through a plug shaft. A fixed circular platform is provided on the shaft body of the upper suspension shaft;

[0010] Middle suspension shaft, the bottom end of the middle suspension shaft is connected to the top end of the lower suspension shaft. The top end of the middle suspension shaft is inserted into the upper suspension shaft. An active circular platform is movably sleeved on the middle suspension shaft.

[0011] In an embodiment of the present invention, a plug shaft double plate is provided at the outer circumference end of the second four-sided hook. The shaft body at the upper part of the plug shaft double plate of the second four-sided hook is fixedly connected to the bottom end of the rope. A convex platform is provided at the bottom of the second four-sided hook.

[0012] In an embodiment of the present invention, linear array of slot holes are provided on the plate body of the third mounting double plate.

[0013] In an embodiment of the present invention, a limiting ring is provided at the bottom of the upper suspension shaft, and a limiting disk is provided at the top of the lower suspension shaft. The limiting ring of the upper suspension shaft and the limiting disk of the lower suspension shaft are lapped.

[0014] In an embodiment of the present invention, a lifting ring assembly is provided on the counterweight block. The lifting ring assembly includes an anchor bolt. The anchor bolt is embedded in the counterweight block body. A thread is provided at the top of the anchor bolt. An inner lifting ring is provided at the top of the anchor bolt through the thread.

[0015] In an embodiment of the present invention, an outer lifting ring is provided on the outer circumference of the inner lifting ring. A bolt is threadedly connected to the ring body of the outer lifting ring. The bolt penetrates through the body of the outer lifting ring and is threadedly connected to the outer circumference of the inner lifting ring.

[0016] A precast concrete counterweight block foundation provided by the present invention has the following beneficial effects:

[0017] 1. By setting the hook assembly, it is convenient for the second four-sided hook to increase the pressure on the outer lifting ring with the increase of the load under the action of the lever principle during the process of being pulled up by the upper suspension shaft, preventing the situation of slipping hooks. And the hook assembly is hoisted and unloaded vertically up and down throughout the process. The hook at the bottom of the second four-sided hook will contract with the up and down movement of the hook assembly, eliminating the need for manual setting of hooks and having very high efficiency.

[0018] 2. By setting counterweights, the body of the counterweight is a cylinder. Prefabricated concrete counterweights usually adopt a cylindrical appearance, which can effectively prevent damage to the edges and corners during transportation. At the same time, the new process eliminates the time for manual formwork support, thus greatly improving the construction progress. After being processed in the factory, it can be directly transported to the construction site for hoisting. After the foundation is hoisted to the roof, it can be transported to the setting-out and positioning point by using a curb stone clamping vehicle during handling, which has the advantages of light construction and convenient installation. For precast concrete counterweights, finished steel membranes or plastic membranes can be used in the factory. Since the formwork is a finished formwork, the counterweight foundation can be formed in one go without large construction errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 is a schematic structural diagram provided by an embodiment of the present invention;

[0021] Figure 2 is a perspective view provided by an embodiment of the present invention;

[0022] Figure 3 is a schematic structural diagram of a hook assembly provided by an embodiment of the present invention;

[0023] Figure 4 is a schematic structural diagram of a lifting ring assembly provided by an embodiment of the present invention.

[0024] In the figure: 1, counterweight; 2, hook assembly; 201, lower lifting shaft; 202, upper lifting shaft; 2021, fixed circular platform; 203, first mounting double plate; 2031, rope; 204, second mounting double plate; 2041, first four-sided hook; 205, middle lifting shaft; 2051, movable circular platform; 206, third mounting double plate; 2061, slot; 2062, second four-sided hook; 3, lifting ring assembly; 301, anchor bolt; 302, thread cutting; 303, inner lifting ring; 304, outer lifting ring; 305, bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part rather than all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without any creative efforts shall fall within the protection scope of the present utility model.

[0026] Embodiment

[0027] Refer to Figures 1-4, this technical solution provides a precast concrete counterweight foundation, which includes a counterweight 1. A hook assembly 2 is provided on the upper part of the counterweight 1. The hook assembly 2 includes: a lower suspension shaft 201, an upper suspension shaft 202, and a middle suspension shaft 205. A third installation double plate 206 is provided around the lower suspension shaft 201. A second circumferential hook 2062 is provided between the third installation double plates 206 through an insertion shaft. On the outer circle of the shaft body of the upper suspension shaft 202, a first installation double plate 203 and a second installation double plate 204 are respectively provided from top to bottom. A rope 2031 is provided at the end of the first installation double plate 203. A first circumferential hook 2041 is movably provided on the outer circle of the second installation double plate 204 through an insertion shaft. A fixed circular platform 2021 is provided on the shaft body of the upper suspension shaft 202. The bottom end of the middle suspension shaft 205 is connected to the top end of the lower suspension shaft 201. The top end of the middle suspension shaft 205 is inserted into the upper suspension shaft 202. A movable circular platform 2051 is movably sleeved on the middle suspension shaft 205. When hoisting the counterweight 1, align the bottom of the lower suspension shaft 201 with the inner circle of the outer suspension ring 304, so that the bottom of the second circumferential hook 2062 is close to the inner circle of the outer suspension ring 304. At this time, the movable circular platform 2051 is at the lowest end. Continue to lower the hook assembly 2 downward. After the third installation double plate 206 contacts the top of the outer suspension ring 304, the lower suspension shaft 201 no longer moves downward, but the upper suspension shaft 202 continues to move downward a certain distance until the bottom of the first circumferential hook 2041 and the top of the movable circular platform 2051 overlap, and then the upper suspension shaft 202 no longer continues to move downward. This process will cause the bottom of the second circumferential hook 2062 to contract and can be inserted into the inner circle of the outer suspension ring 304. Then pull the upper suspension shaft 202 upward. When loading the hook of the counterweight 1, the upper suspension shaft 202 will pass through the movable circular platform 2051, and then lift the movable circular platform 2051 to the bottom of the fixed circular platform 2021 and tightly fit it during the upward return process, so that the bottom end of the first circumferential hook 2041 moves to the top of the fixed circular platform 2021, and pull up the fixed circle together with the upper suspension shaft 202. Then the rope 2031 of the first installation double plate 203 pulls up the end of the second circumferential hook 2062. At this time, the other end of the second circumferential hook 2062 moves towards the outer suspension ring 304 and presses more tightly under the action of the lever principle for hoisting. By setting the hook assembly 2, it is convenient for the second circumferential hook 2062 to increase its pressure on the outer suspension ring 304 with the increase of the load under the action of the lever principle during the upward pulling process of the upper suspension shaft 202, preventing the situation of slipping hooks. And the hook assembly 2 hoists and unloads vertically up and down throughout the process. The hook at the bottom of the second circumferential hook 2062 will contract with the up and down movement of the hook assembly 2, eliminating the need for manual setting of hooks and with very high efficiency.

[0028] Refer to Figures 1-4, based on the same concept as the above-mentioned Embodiment 1, this embodiment also proposes that the outer ring end of the second four-week hook 2062 is provided with an insertion shaft double plate. The shaft body at the upper part of the insertion shaft double plate of the second four-week hook 2062 is fixedly connected to the bottom end of the rope 2031, and the bottom of the second four-week hook 2062 is provided with a boss.

[0029] Referring to Figures 1-4 , based on the same concept as the above-mentioned Embodiment 1, this embodiment also proposes that linear array of slot holes 2061 are opened on the plate body of the third installation double plate 206, which can adapt to the sizes of different hoisting parts.

[0030] Referring to Figures 1-4 , based on the same concept as the above-mentioned Embodiment 1, this embodiment also proposes that a limiting ring is provided at the bottom of the upper lifting shaft 202, and a limiting disc is provided at the top of the lower lifting shaft 201. The limiting ring of the upper lifting shaft 202 and the limiting disc of the lower lifting shaft 201 are overlapped to prevent the two from falling off.

[0031] Referring to Figures 1-4 , based on the same concept as the above-mentioned Embodiment 1, this embodiment also proposes that a lifting ring assembly 3 is provided on the counterweight 1. The lifting ring assembly 3 includes an anchor bolt 301, the anchor bolt 301 is embedded in the body of the counterweight 1, a thread 302 is opened at the top of the anchor bolt 301, and an inner lifting ring 303 is provided at the top of the anchor bolt 301 through the thread 302. By setting the counterweight 1, the body of the counterweight 1 is a cylinder, and the precast concrete counterweight 1 usually adopts a cylindrical appearance, which can effectively prevent the damage of the edges and corners during transportation. At the same time, the new process saves the time of manual formwork support, thus greatly improving the construction progress. After being processed in the factory, it can be directly transported to the construction site for hoisting. After the foundation is hoisted to the roof, it can be transported to the setting-out positioning point by using a curb stone clamping vehicle during handling, which has the advantages of light construction and convenient installation. For the precast concrete counterweight 1, finished steel membranes or plastic membranes can be used in the factory. Since the formwork is a finished formwork, the counterweight foundation can be formed at one time without large construction errors.

[0032] Referring to Figures 1-4 , based on the same concept as the above-mentioned Embodiment 1, this embodiment also proposes that an outer lifting ring 304 is provided on the outer ring of the inner lifting ring 303, and a bolt 305 is threadedly connected to the ring body of the outer lifting ring 304. The bolt 305 penetrates through the body of the outer lifting ring 304 and is threadedly connected to the outer ring of the inner lifting ring 303.

[0033] Specifically, the working process or principle of the precast concrete counterweight foundation is as follows: When hoisting the counterweight 1, align the bottom of the lower lifting shaft 201 with the inner circle of the outer lifting ring 304, so that the bottom of the second circumferential hook 2062 is close to the inner circle of the outer lifting ring 304. At this time, the movable frustum 2051 is at the lowest end. Continue to lower the hook assembly 2 downward. After the third mounting double plate 206 contacts the top of the outer lifting ring 304, the lower lifting shaft 201 no longer moves downward, but the upper lifting shaft 202 continues to move downward a certain distance until the bottom of the first circumferential hook 2041 overlaps with the top of the movable frustum 2051, then the upper lifting shaft 202 no longer moves downward. During this process, the bottom of the second circumferential hook 2062 will shrink and can be inserted into the inner circle of the outer lifting ring 304. Then, pull the upper lifting shaft 202 upward. When loading the hook of the counterweight 1, the upper lifting shaft 202 will pass through the movable frustum 2051, and then lift the movable frustum 2051 to the bottom of the fixed frustum 2021 and tightly fit it during the upward return process, so that the bottom end of the first circumferential hook 2041 moves to the top of the fixed frustum 2021, and lift the fixed circle together with the upper lifting shaft 202. Then, the rope 2031 of the first mounting double plate 203 pulls the end of the second circumferential hook 2062. At this time, the other end of the second circumferential hook 2062 moves towards the outer lifting ring 304 and presses more tightly under the action of the lever principle for hoisting.

[0034] It should be noted that the counterweight 1 is a device or equipment existing in the prior art, or a device or equipment that can be realized by the prior art. Its power supply, specific composition and principle are clear to those skilled in the art, so it will not be elaborated in detail.

Claims

1. A precast concrete counterweight foundation, comprising a counterweight block (1), characterized in that: The upper part of the counterweight block (1) is provided with a hook assembly (2); The hook assembly (2) includes: A lower suspension shaft (201), around which a third mounting double plate (206) is provided. A second circumferential hook (2062) is provided between the third mounting double plates (206) through an insertion shaft; An upper suspension shaft (202), on the outer circumference of the shaft body of which, a first mounting double plate (203) and a second mounting double plate (204) are provided from top to bottom respectively. A rope (2031) is provided at the end of the first mounting double plate (203). A first circumferential hook (2041) is movably provided on the outer circle of the second mounting double plate (204) through an insertion shaft. A fixed circular platform (2021) is provided on the shaft body of the upper suspension shaft (202); A middle suspension shaft (205), the bottom end of which is connected to the top end of the lower suspension shaft (201). The top end of the middle suspension shaft (205) is inserted into the upper suspension shaft (202). A movable circular platform (2051) is movably sleeved on the middle suspension shaft (205).

2. The precast concrete counterweight foundation according to claim 1, wherein An insertion shaft double plate is provided at the outer circle end of the second circumferential hook (2062). The shaft body at the upper part of the insertion shaft double plate of the second circumferential hook (2062) is fixedly connected to the bottom end of the rope (2031). A convex platform is provided at the bottom of the second circumferential hook (2062).

3. A precast concrete counterweight foundation according to claim 1, characterized in that, Slot holes (2061) in linear array are formed on the plate body of the third mounting double plate (206).

4. A precast concrete counterweight foundation according to claim 1, wherein, A limiting ring is provided at the bottom of the upper suspension shaft (202), and a limiting disc is provided at the top of the lower suspension shaft (201). The limiting ring of the upper suspension shaft (202) and the limiting disc of the lower suspension shaft (201) are overlapped.

5. A precast concrete counterweight foundation according to claim 4, characterized in that, A sling assembly (3) is provided on the counterweight block (1). The sling assembly (3) includes an anchor bolt (301) embedded in the body of the counterweight block (1). A thread (302) is formed at the top of the anchor bolt (301). An inner sling (303) is provided at the top of the anchor bolt (301) through the thread (302).

6. A precast concrete counterweight foundation according to claim 5, characterized in that, An outer sling (304) is provided on the outer circle of the inner sling (303). A bolt (305) is threadedly connected to the ring body of the outer sling (304). The bolt (305) penetrates through the body of the outer sling (304) and is threadedly connected to the outer circle of the inner sling (303).

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