Prefabricated tower crane foundation

Abstract

The present invention discloses a prefabricated and assembled tower crane foundation, which relates to the technical field of tower crane foundations and includes a base, a prefabricated block 1 and a prefabricated block 2. The prefabricated block 1 includes an insert block 1, the prefabricated block 2 includes an insert block 2, a sleeve plate is screwed on the surface of the threaded rod 2, an adjustment plate is slidably connected between the two sleeve plates, a fixing cylinder is fixedly connected to the bottom of the prefabricated block 2, a positioning component connected to the threaded rod 2 is arranged in the fixing cylinder, a limiting component is arranged on the base, the limiting component includes a clamping block, and a transmission component is arranged on the base. The tower crane foundation components prefabricated in a factory are transported to the construction site for assembly, without the need for on-site operations such as digging a foundation pit and pouring concrete, which greatly saves time and improves construction efficiency. At the same time, the assembled tower crane foundation can be disassembled and reused after the construction is completed, which saves resources, meets the development requirements of a circular economy, and improves the reliability of the tower crane foundation when in use.

Description

Technical Field

[0001] The invention relates to the technical field of tower cranes, in particular to a prefabricated and assembled tower crane foundation. Background Art

[0002] A tower crane, also known as a tower crane, is a crucial piece of equipment for lifting and transporting in the construction industry. It's a rotating crane with a boom mounted atop a tall tower. It boasts a large operating area and is primarily used for vertical and horizontal material transport and component installation in building construction. The vertical transport of raw materials such as rebar, timber planks, and scaffolding pipes is accomplished by the crane. To ensure proper and safe operation, the crane must be securely mounted on its foundation.

[0003] During the construction of traditional tower crane foundations, a deep foundation pit must be dug and reinforced concrete poured to form a one-time-use integral foundation. The production time is long, and after the construction is completed, the dismantling operation is difficult. The construction waste generated after the dismantling causes a waste of resources. Summary of the Invention

[0004] The purpose of the present invention is to provide a prefabricated and assembled tower crane foundation, which solves the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a prefabricated and assembled tower crane foundation, comprising:

[0006] A base, a first prefabricated block, and a second prefabricated block. The first prefabricated block includes a first inserting block. The base is square and has a first slot for inserting the first inserting block formed on all four sides of the base. The second prefabricated block includes a second inserting block. The first prefabricated block has a second slot for inserting the second inserting block formed on its surface.

[0007] Two threaded rods 2, two threaded holes 2 for the two threaded rods 2 to pass through and be threadedly connected to the prefabricated block 2 are opened on the surface of the prefabricated block 2, a sleeve plate is screwed on the surface of the threaded rod 2, an adjustment plate is slidably connected between the two sleeve plates, and a bolt is provided at the connection;

[0008] The bottom of the second prefabricated block is fixedly connected with a fixing cylinder, and a positioning assembly connected with the second threaded rod is arranged in the fixing cylinder;

[0009] A limiting component, which is arranged on the base and is used to limit the movement of the prefabricated block 1, and the limiting component includes a clamping block;

[0010] A transmission component is arranged on the base and is used to drive the limiting component to move.

[0011] Optionally, the limiting component includes a slide plate, the surface of the base is provided with a through hole for the card block to extend into and be slidably connected thereto, the through hole is communicated with the slot one, the surface of the insert block one is provided with a slot for the card block to extend into, the card block includes an inclined portion, the inner wall of the through hole is provided with a groove one for the slide plate to extend into and be slidably connected thereto, the slide is fixedly connected to the surface of the card block, and a spring one is fixedly connected between the slide plate and the inner wall of the groove one, and the number of the limiting components is four, corresponding to the number of the prefabricated blocks one.

[0012] Optionally, the transmission component includes:

[0013] A movable plate, wherein the surfaces of the base and the prefabricated block 1 are respectively provided with a first slide groove and a second slide groove for the movable plate to extend into and slideably connect with the movable plate, and the movable plate is located above the through hole and abuts against the blocking block;

[0014] A movable plate, a motor is fixedly mounted on the surface of the base, a threaded rod 1 is fixedly connected to the output end of the motor, the movable plate is threadedly connected to the surface of the threaded rod 1, two symmetrically distributed guide rods are fixedly connected to the surface of the base, a through-hole 1 is provided on the surface of the movable plate for the guide rod to pass through and be slidably connected thereto, a baffle is fixedly connected to the top of the threaded rod 1, and a rotating plate 1 is hingedly connected between the movable plate and the movable plate.

[0015] Optionally, the positioning component includes:

[0016] A positioning block, wherein the surface of the fixed cylinder is provided with a second through-hole for the positioning block to pass through, the positioning block is slidably connected to the fixed cylinder through the second through-hole, the inner wall of the fixed cylinder is slidably connected to a driving plate, a rotating plate second is hingedly connected between the bottom of the driving plate and the surface of the positioning block, and a vertebral body is fixedly connected to the bottom of the fixed cylinder;

[0017] A fixing plate, the fixing plate is fixedly connected to the inner wall of the fixing cylinder, the surface of the fixing plate is provided with an opening for the second threaded rod to pass through, a second spring is fixedly connected between the bottom of the fixing plate and the upper surface of the driving plate, and the number of the positioning blocks is two and they are symmetrically distributed.

[0018] Optionally, the upper surface of the second threaded rod is provided with a groove for the driving rod to extend into and be slidably connected thereto, the surface of the driving rod is fixedly connected with a convex strip, the inner wall of the groove is provided with a second groove for the convex strip to extend into, the surface of the driving rod is fixedly connected with a handle, the bottom of the handle is fixedly connected to a limiting block, and the surface of the sleeve is provided with a limiting groove for the limiting block to extend into.

[0019] Optionally, the surfaces of the base and the prefabricated block 1 are both provided with trapezoidal grooves for facilitating positioning, and the prefabricated block 1 and the prefabricated block 2 both include trapezoidal portions corresponding to the trapezoidal grooves.

[0020] Optionally, the number of the chute 1 and the chute 2 are both two, and they are symmetrically distributed, and the chute 1 and the chute 2 are connected after the tower crane foundation is installed.

[0021] Optionally, a plurality of slots are provided on the surfaces of the base, the first prefabricated block and the second prefabricated block.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention transports the tower crane foundation components prefabricated in the factory to the construction site for assembly. The tower crane foundation components include a base, prefabricated block 1, prefabricated block 2 and parts, which are assembled together into a cross-shaped tower crane foundation structure. There is no need to dig a foundation pit on site, pour concrete and other operations, which greatly saves time and improves construction efficiency. At the same time, after the construction is completed, the assembled tower crane foundation can be disassembled and reused, saving resources and meeting the development requirements of the circular economy.

[0024] 2. After the installation of prefabricated block 1 and prefabricated block 2 of the present invention is completed, the threaded rod 2 and the sleeve plate are installed on the prefabricated block 2. The two adjacent prefabricated blocks 2 are limited and fixed by the inclined sleeve plates and adjustment plates, so that the various components of the tower crane form a whole, thereby improving the firmness and stability of the entire tower crane foundation.

[0025] 3. According to the present invention, when the inserting block 1 is fully inserted into the slot 1, the threaded rod 1 rotates to drive the movable plate to move downward, thereby driving the rotating plate 1 to rotate. The rotating plate 1 rotates to drive the movable plate to move, pressing the clamping block to move downward, thereby achieving the effect of limiting the prefabricated block 1. The clamping block moves, driving the slide plate to slide in the groove 1, exerting pressure on the spring 1 until the clamping block is inserted into the clamping slot and the movable plate stops moving, thereby achieving the effect of limiting the prefabricated block 1 and improving the firmness and reliability of the connection.

[0026] 4. The present invention rotates the driving rod and drives the threaded rod 2 to rotate through the convex strip. After the threaded rod 2 is installed, the limit block at the bottom of the handle corresponds to the limit groove. At this time, the limit block is extended into the limit groove to limit the rotation of the driving rod, thereby avoiding the threaded rod 2 from gradually loosening due to shaking when the tower crane foundation is in use, affecting the support effect, and improving the reliability of the tower crane foundation when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is an axonometric view of the overall structure of the present invention;

[0028] Figure 2For the present invention Figure 1 A magnified view of the structure at center A;

[0029] Figure 3 For the present invention Figure 1 A magnified view of the structure at B in the middle;

[0030] Figure 4 A cross-sectional view of the overall structure of the present invention Figure 1 ;

[0031] Figure 5 For the present invention Figure 4 A magnified view of the structure at center C;

[0032] Figure 6 A cross-sectional view of the overall structure of the present invention Figure 2 ;

[0033] Figure 7 For the present invention Figure 6 A magnified view of the structure at D in the middle;

[0034] Figure 8 A cross-sectional view of the overall structure of the present invention Figure 3 ;

[0035] Figure 9 For the present invention Figure 8 Enlarged view of the structure at E in the middle.

[0036] In the figure: 1. Base; 101. Slide 1; 102. Slot 1; 103. Through hole; 2. Prefabricated block 1; 201. Insert block 1; 2011. Slot; 202. Slide 2; 203. Slot 2; 3. Prefabricated block 2; 301. Insert block 2; 4. Motor; 5. Threaded rod 1; 6. Baffle; 7. Guide rod; 8. Moving plate; 9. Moving plate; 10. Rotating plate 1; 11. Slot; 12 , clamping block; 121, inclined portion; 13, slide plate; 14, spring one; 15, groove one; 16, sleeve plate; 161, limit groove; 17, adjustment plate; 18, threaded rod two; 19, convex strip; 20, drive rod; 21, handle; 22, limit block; 23, fixing cylinder; 24, fixing plate; 25, drive plate; 26, spring two; 27, rotating plate two; 28, positioning block; 29, vertebral body. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] For example 1, please refer to Figures 1 to 9This implementation provides prefabricated tower crane foundations, including:

[0039] Base 1, prefabricated block 1 2 and prefabricated block 2 3, prefabricated block 1 2 including plug-in block 1 201, base 1 is square and has slots 102 on all four sides for inserting plug-in block 1 201, prefabricated block 2 3 includes plug-in block 2 301, and prefabricated block 1 2 has slots 203 on its surface for inserting plug-in block 2 301, the tower crane foundation includes a base 1, at least four groups of prefabricated blocks 1 2, prefabricated blocks 2 3 and several parts, together forming a cross-shaped tower crane foundation structure, the surfaces of base 1, prefabricated blocks 1 2 and prefabricated blocks 2 3 are all provided with several slots 11;

[0040] Two threaded rods 18 are provided on the surface of the prefabricated block 3, and two threaded holes 2 are provided for the two threaded rods 18 to pass through and be threadedly connected thereto. A sleeve 16 is screwed onto the surface of the threaded rod 18, and an adjustment plate 17 is slidably connected between the two sleeves 16, and bolts are provided at the connection point.

[0041] The bottom of the prefabricated block 2 is fixedly connected with a fixing cylinder 23, and the end of the threaded rod 2 18 extends into the fixing cylinder 23. A positioning component connected to the threaded rod 2 18 is provided in the fixing cylinder 23, and a limiting component and a transmission component are provided on the base 1.

[0042] In this embodiment, the tower crane foundation components prefabricated in the factory are transported to the construction site. After the construction area is determined, the base 1 is placed in the center of the area, and the plug-in blocks 201 of the multiple prefabricated blocks 1-2 are respectively inserted into the slots 102 opened on the surface of the base 1. Then, the transmission component is started to drive the limiting component to move. Through the movement of the limiting component, the prefabricated block 1-2 is limited by the clamping block 12 to ensure the stability of the prefabricated block 1-2 and the base 1 after assembly. Then, the plug-in blocks 2-301 of the multiple prefabricated blocks 2-3 are respectively extended into the corresponding slots 2-203 to form a cross-shaped tower crane. The foundation structure is then installed with the threaded rod 2 18 and the sleeve 16 on the prefabricated block 2 3. The two adjacent prefabricated blocks 2 3 are fixed by the inclined sleeve 16 and the adjustment plate 17, so that the components of the tower crane form a whole, which improves the firmness and stability of the entire tower crane foundation. At the same time, through the prefabricated production of tower crane foundation components, there is no need to dig foundation pits and pour concrete on site, which greatly saves time and improves construction efficiency. At the same time, after the construction is completed, the assembled tower crane foundation can be disassembled and reused, which saves resources and meets the development requirements of the circular economy.

[0043] Furthermore, by providing the sleeve plate 16 and the adjustment plate 17, the structure can be adapted to tower crane foundations of different areas, such as installing different numbers of prefabricated blocks 1 and 2 between the base 1 and the prefabricated block 3, thereby improving the practicality of the tower crane foundation. By fixing the fixing cylinder 23 to the bottom of the prefabricated block 3, the fixing cylinder 23 is inserted into the ground during installation to prevent the tower crane foundation from overturning, thereby improving the reliability of the tower crane foundation. When the threaded rod 18 is installed, the bottom of the threaded rod 18 gradually extends into the fixing cylinder 23. As the bottom of the threaded rod 18 gradually extends into the fixing cylinder 23, the positioning assembly is driven to move, thereby increasing the support range of the fixing cylinder 23 and improving the support effect on the tower crane foundation.

[0044] See also Figures 1 to 7 The limiting components include a slide 13 and a card block 12. A through hole 103 is provided on the surface of the base 1 for the card block 12 to extend into and be slidably connected thereto. The through hole 103 is communicated with the slot 102. A card groove 2011 is provided on the surface of the insert block 201 for the card block 12 to extend into. The card block 12 includes an inclined portion 121. The inner wall of the through hole 103 is provided with a groove 15 for the slide 13 to extend into and be slidably connected thereto. The slide 13 is fixedly connected to the surface of the card block 12. A spring 14 is fixedly connected between the slide 13 and the inner wall of the groove 15. The number of limiting components is four, corresponding to the number of prefabricated blocks 2.

[0045] In this embodiment, in the initial state, the action of spring 14 causes the inclined portion 121 of the block 12 to extend out of the through hole 103, and the bottom is separated from the slot 102 to prevent obstruction of the insertion block 201. When the insertion block 201 is fully inserted into the slot 102, the block 12 corresponds to the slot 2011, and then the block 12 is driven downward by the action of the transmission component. The movement of the block 12 drives the slide plate 13 to slide in the groove 15, exerting pressure on the spring 14 until the block 12 is inserted into the slot 2011 and the transmission component stops, thereby achieving the limitation of the prefabricated block 2 and improving the firmness and reliability of the connection.

[0046] See also Figure 1 and Figure 2 , transmission components include:

[0047] The surfaces of the movable plate 9, the base 1 and the prefabricated block 1 2 are respectively provided with a chute 101 and a chute 202 for the movable plate 9 to extend into and slide into. The movable plate 9 is located above the through hole 103 and abuts against the block 12.

[0048] The movable disk 8 and the surface of the base 1 are fixedly mounted with a motor 4, the output end of the motor 4 is fixedly connected to a threaded rod 5, the movable disk 8 is threadedly connected to the surface of the threaded rod 5, the surface of the base 1 is fixedly connected to two symmetrically distributed guide rods 7, the surface of the movable disk 8 is provided with a through hole 1 for the guide rod 7 to pass through and be slidably connected thereto, the top of the threaded rod 5 is fixedly connected to a baffle 6, and a rotating plate 10 is hingedly connected between the movable disk 8 and the movable plate 9.

[0049] In this embodiment, after the insert block 201 is fully inserted into the slot 102, the motor 4 is started to drive the threaded rod 5 to rotate, and the threaded rod 5 rotates and the movable plate 8 is driven downward by the action of the guide rod 7. The movable plate 8 moves downward, and the rotating plate 10 is driven to rotate. The rotating plate 10 rotates, and the movable plate 9 is driven to move along the slide groove 101 toward the prefabricated block 2 and gradually slide into the slide groove 202. During the movement of the movable plate 9, it contacts the inclined portion 121 of the clamping block 12, pressing the clamping block 12 to move downward, thereby achieving the effect of limiting the prefabricated block 2. When disassembling, it is only necessary to reverse the threaded rod 5 to drive the movable plate 8 to reset, thereby resetting the movable plate 9 and the clamping block 12.

[0050] Example 2, based on the above example:

[0051] Positioning components include:

[0052] Positioning block 28, the surface of the fixed cylinder 23 is provided with a second through-hole for the positioning block 28 to pass through, the positioning block 28 is slidably connected to the fixed cylinder 23 through the second through-hole, the inner wall of the fixed cylinder 23 is slidably connected to the driving plate 25, the bottom of the driving plate 25 and the surface of the positioning block 28 are hingedly connected to a second rotating plate 27, and the bottom of the fixed cylinder 23 is fixedly connected to a vertebral body 29;

[0053] The fixing plate 24 is fixedly connected to the inner wall of the fixing cylinder 23. The surface of the fixing plate 24 is provided with an opening for the threaded rod 18 to pass through. The bottom of the fixing plate 24 and the upper surface of the driving plate 25 are jointly fixedly connected with a spring 26. There are two positioning blocks 28, and they are symmetrically distributed.

[0054] In this embodiment, during the installation of the threaded rod 218, the bottom of the threaded rod 218 gradually extends into the fixed tube 23 and passes through the opening opened on the surface of the fixed plate 24, and then abuts against the drive plate 25. As the threaded rod 218 continues to move downward, the drive plate 25 is pressed to move downward, and at the same time, pressure is applied to the spring 26. The drive plate 25 moves downward, driving the rotating plate 27 to rotate. The rotating plate 27 rotates, driving the movable positioning block 28 to move away from the fixed tube 23 and be inserted laterally into deeper soil, thereby increasing the support area and improving the reliability of the tower crane foundation during use.

[0055] Furthermore, the upper surface of the threaded rod 18 is provided with a groove for the drive rod 20 to extend into and be slidably connected thereto, the surface of the drive rod 20 is fixedly connected with a convex strip 19, the inner wall of the groove is provided with a groove 2 for the convex strip 19 to extend into, the surface of the drive rod 20 is fixedly connected with a handle 21, the bottom of the handle 21 is fixedly connected to a limiting block 22, and the surface of the sleeve plate 16 is provided with a limiting groove 161 for the limiting block 22 to extend into.

[0056] Furthermore, when the threaded rod 18 needs to be rotated, the driving rod 20 can be driven to rotate more conveniently by holding the handle 21. The driving rod 20 rotates and the threaded rod 18 is driven to rotate by the convex strip 19 until the threaded rod 18 rotates to the desired position. Figure 3 In the state shown, the threaded rod 21 is installed, and the limit block 22 at the bottom of the handle 21 corresponds to the limit groove 161. Since the driving rod 20 can move vertically in the threaded rod 28, the limit block 22 is extended into the limit groove 161 to limit the rotation of the driving rod 20, thereby preventing the threaded rod 28 from gradually loosening due to shaking when the tower crane foundation is in use, affecting the support effect, and further improving the reliability of the tower crane foundation when in use.

[0057] Furthermore, the surfaces of the base 1 and the prefabricated block 1 2 are provided with trapezoidal grooves for facilitating positioning, and the prefabricated block 1 2 and the prefabricated block 2 3 both include trapezoidal portions corresponding to the trapezoidal grooves.

[0058] Furthermore, by providing the trapezoidal groove and the corresponding trapezoidal portion, the initial positioning of the prefabricated block 1 2 and the prefabricated block 2 3 is facilitated, and the insertion of the plug-in block 1 201 and the plug-in block 2 301 is facilitated, thereby improving the convenience of assembling the tower crane foundation.

[0059] The number of the first chute 101 and the second chute 202 are both two, and they are symmetrically distributed, and the first chute 101 and the second chute 202 are connected after the tower crane foundation is installed.

[0060] Furthermore, by setting two symmetrically distributed slide grooves 101 and slide grooves 202, the movable plate 9 can be prevented from shaking when it moves, making its movement more stable. After the movable plate 9 has moved, the bending strength between the position base 1 and the prefabricated block 1 2 can be enhanced, thereby further improving the overall performance of the tower crane foundation.

[0061] Working principle: When the prefabricated tower crane foundation is used, the following steps are included:

[0062] Step S1: The tower crane foundation components prefabricated in the factory are transported to the construction site. After the construction area is determined, the base 1 is placed in the center of the area. The insert blocks 1 201 of the plurality of prefabricated blocks 1 2 are respectively inserted into the slots 102 provided on the surface of the base 1. The insert blocks 2 301 of the plurality of prefabricated blocks 2 3 are respectively extended into the corresponding slots 2 203 to form a cross-shaped tower crane foundation structure, thereby completing the preliminary installation.

[0063] Step S2: After the insert block 201 is fully inserted into the slot 102, the threaded rod 5 rotates, driving the movable plate 8 to move downward, thereby driving the rotating plate 10 to rotate. The rotating plate 10 rotates, driving the movable plate 9 to move along the chute 101 toward the prefabricated block 2 and gradually slide into the chute 202. After the movable plate 9 has moved, the position between the base 1 and the prefabricated block 2 can be strengthened to enhance the bending strength, thereby further improving the overall performance of the tower crane foundation.

[0064] Step S3: During the movement of the movable plate 9, the movable plate 9 contacts the inclined portion 121 of the clamping block 12, pressing the clamping block 12 downward to limit the position of the prefabricated block 2. The movement of the clamping block 12 drives the slide plate 13 to slide in the groove 15, exerting pressure on the spring 14 until the clamping block 12 is inserted into the clamping groove 2011. The movable plate 9 stops moving, thus limiting the position of the prefabricated block 2 and improving the firmness and reliability of the connection.

[0065] Step S4: After the installation of prefabricated block 1 2 and prefabricated block 2 is completed, the threaded rod 2 18 and the sleeve 16 are installed on the prefabricated block 2 3. The two adjacent prefabricated blocks 2 3 are fixed by the inclined sleeve 16 and the adjustment plate 17, so that the various components of the tower crane form a whole, thereby improving the firmness and stability of the entire tower crane foundation;

[0066] Step S5: During the installation of the second threaded rod 18, the bottom of the second threaded rod 18 gradually extends into the fixed tube 23 and passes through the opening provided on the surface of the fixed plate 24, then abuts against the driving plate 25 and presses the driving plate 25 to move downward, driving the second rotating plate 27 to rotate. The second rotating plate 27 rotates, driving the movable positioning block 28 to move away from the fixed tube 23 and laterally insert deeper into the soil, thereby increasing the supporting area and improving the reliability of the tower crane foundation during use.

[0067] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. Prefabricated tower crane foundation, characterized by: include: A base (1), a prefabricated block 1 (2) and a prefabricated block 2 (3), wherein the prefabricated block 1 (2) includes an insert block 1 (201), the base (1) is square and has a surface with slots 1 (102) for the insert block 1 (201) to be inserted therein, the prefabricated block 2 (3) includes an insert block 2 (301), and a surface of the prefabricated block 1 (2) has a slot 2 (203) for the insert block 2 (301) to be inserted therein; Two threaded rods (18), the surface of the prefabricated block (3) is provided with two threaded holes (18) for the two threaded rods (18) to pass through and be threadedly connected thereto, the surface of the threaded rod (18) is screwed with a sleeve (16), the two sleeves (16) are slidably connected to an adjustment plate (17), and bolts are provided at the connection; The bottom of the second prefabricated block (3) is fixedly connected to a fixing cylinder (23), and a positioning assembly connected to the second threaded rod (18) is provided in the fixing cylinder (23); A limiting component, the limiting component is arranged on the base (1) and is used to limit the movement of the prefabricated block 1 (2), and the limiting component includes a clamping block (12); A transmission component, the transmission component being arranged on the base (1) and being used to drive the limiting component to move; The limiting component includes a slide plate (13), a through hole (103) for the block (12) to extend into and be slidably connected to the base (1), the through hole (103) is opened on the surface of the base (1), the through hole (103) is communicated with the slot one (102), the surface of the insert block one (201) is opened with a slot (2011) for the block (12) to extend into, the block (12) includes an inclined portion (121), the inner wall of the through hole (103) is opened with a groove one (15) for the slide plate (13) to extend into and be slidably connected to the slide plate (13), the slide plate (13) is fixedly connected to the surface of the block (12), and a spring one (14) is fixedly connected between the slide plate (13) and the inner wall of the groove one (15), and the number of the limiting components is four, corresponding to the number of the prefabricated block one (2); The transmission component includes a movable plate (9), and the surfaces of the base (1) and the prefabricated block (2) are respectively provided with a first slide groove (101) and a second slide groove (202) for the movable plate (9) to extend into and be slidably connected thereto. The movable plate (9) is located above the through hole (103) and abuts against the clamping block (12); A movable plate (8) is provided, wherein a motor (4) is fixedly mounted on the surface of the base (1), a threaded rod (5) is fixedly connected to the output end of the motor (4), the movable plate (8) is threadedly connected to the surface of the threaded rod (5), two symmetrically distributed guide rods (7) are fixedly connected to the surface of the base (1), a through hole (1) is provided on the surface of the movable plate (8) for the guide rod (7) to pass through and be slidably connected thereto, a baffle (6) is fixedly connected to the top of the threaded rod (5), and a rotating plate (10) is hingedly connected between the movable plate (8) and the movable plate (9).

2. The prefabricated tower crane foundation according to claim 1, characterized in that: The positioning component includes: A positioning block (28), a second through-hole for the positioning block (28) to pass through is provided on the surface of the fixed cylinder (23), the positioning block (28) is slidably connected to the fixed cylinder (23) through the second through-hole, a driving plate (25) is slidably connected to the inner wall of the fixed cylinder (23), a rotating plate (27) is hingedly connected between the bottom of the driving plate (25) and the surface of the positioning block (28), and a vertebral body (29) is fixedly connected to the bottom of the fixed cylinder (23); A fixing plate (24) is fixedly connected to the inner wall of the fixing cylinder (23), and an opening for the second threaded rod (18) to pass through is provided on the surface of the fixing plate (24). A second spring (26) is fixedly connected between the bottom of the fixing plate (24) and the upper surface of the driving plate (25). The number of the positioning blocks (28) is two and they are symmetrically distributed.

3. The prefabricated tower crane foundation according to claim 2, characterized in that: The upper surface of the second threaded rod (18) is provided with a slot for the driving rod (20) to extend into and be slidably connected thereto, the surface of the driving rod (20) is fixedly connected with a convex strip (19), the inner wall of the slot is provided with a second groove for the convex strip (19) to extend into, the surface of the driving rod (20) is fixedly connected with a handle (21), the bottom of the handle (21) is fixedly connected with a limit block (22), and the surface of the sleeve plate (16) is provided with a limit slot (161) for the limit block (22) to extend into.

4. The prefabricated tower crane foundation according to claim 3, characterized in that: The surfaces of the base (1) and the prefabricated block 1 (2) are both provided with trapezoidal grooves for facilitating positioning, and the prefabricated block 1 (2) and the prefabricated block 2 (3) both include trapezoidal portions corresponding to the trapezoidal grooves.

5. The prefabricated tower crane foundation according to claim 4, characterized in that: The number of the chute 1 (101) and the number of the chute 2 (202) are both two, and they are symmetrically distributed, and the chute 1 (101) and the chute 2 (202) are connected after the tower crane foundation is installed.

6. The prefabricated tower crane foundation according to claim 5, characterized in that: The surfaces of the base (1), the prefabricated block 1 (2) and the prefabricated block 2 (3) are all provided with a plurality of slots (11).

Images