Multifunctional tower crane foundation conversion, installation and leveling device

Abstract

The invention relates to the technical field of tower cranes, in particular to a multifunctional tower crane foundation conversion, installation and leveling device. Comprising a connecting frame, a supporting plate is arranged on the connecting frame, and two first sliding frames and two second sliding frames are slidably connected into the connecting frame in a limited mode; the four fixing units are located at the intersection points of the two first sliding frames and the two second sliding frames correspondingly. The fixing unit comprises a connecting frame, a supporting frame, two connecting blocks and two fine adjustment mechanisms. The connecting frame is mounted at the intersection point of the first sliding frame and the adjacent second sliding frame; the supporting frame is connected to the supporting plate in a sliding mode; the two connecting blocks are connected to the supporting frame in a sliding mode. Through relative movement of the connecting block and the supporting frame and fine adjustment of the relative position of the connecting frame and the supporting frame, the gravity center of the tower crane is located at the center of the supporting plate, the stress uniformity of the structure on the connecting frame is guaranteed, and the safety of the tower crane and workers is improved.

Description

Technical Field

[0001] The invention relates to the technical field of tower cranes, and in particular to a multifunctional tower crane foundation conversion, installation and leveling device. Background Art

[0002] The tower crane foundation conversion section is a key component to ensure the safe and stable operation of the tower crane. Its function is to firmly fix the tower crane's foundation section on a large-volume concrete foundation. Since the tower crane needs to ensure its center of gravity is stable and the force is evenly distributed during installation, the foundation of the tower crane generally uses large-volume concrete as the foundation. Anchor bolts or steel plates are embedded in the concrete, and then the foundation section is connected. However, in some cases where the construction period is long and involves the conversion of tower cranes of different specifications, in order to adapt to the installation needs of tower cranes of various specifications, conversion sections are usually installed on the concrete to connect the fixed legs on the conversion section to the foundation section. Tower cranes of different specifications require the use of foundation conversion sections of different sizes. Existing tower crane installations usually use a tower crane foundation conversion installation leveling device. After the positions of the four fixed legs on the device are adjusted, it can be suitable for tower cranes of different specifications.

[0003] However, after the position of the fixed legs on the existing tower crane foundation conversion and installation leveling device is adjusted, it is usually impossible to ensure that the center of gravity of the tower crane is centered on the tower crane foundation conversion and installation leveling device, which leads to a significant increase in the load difference borne by various parts of the tower crane foundation conversion device. Some parts will be subjected to excessive stress, thereby accelerating structural fatigue and increasing the risk of tilting or overturning the tower crane. Summary of the invention

[0004] Aiming at the problem that the center of gravity cannot be kept centered after the position of the fixed tripod on the tower crane foundation conversion installation and leveling device is adjusted, the present invention provides a multifunctional tower crane foundation conversion installation and leveling device.

[0005] The technical implementation scheme of the present invention is: a multifunctional tower crane foundation conversion, installation and leveling device, comprising: a connecting frame, a supporting plate is arranged on the connecting frame, and two first sliding frames and two second sliding frames are slidingly connected in the connecting frame; four fixing units are respectively located at the intersection of the two first sliding frames and the two second sliding frames; the fixing units comprise: a connecting frame, a supporting frame, two connecting blocks and two fine-adjusting mechanisms; the connecting frame is installed at the intersection of the first sliding frame and the adjacent second sliding frames; the supporting frame is slidably connected to the supporting plate, and a tension spring is fixedly connected between the supporting frame and the connecting frame; the two connecting blocks are both slidably connected to the supporting frame, and the connecting blocks are used to squeeze the connecting frame; the fine-adjusting mechanism is arranged on the connecting frame and is used to fine-tune the position of the support frame; a synchronous control mechanism is arranged in the connecting frame and is used to synchronously change the spacing between the two first sliding frames and the two second sliding frames.

[0006] As a preferred embodiment of the present invention, a plurality of evenly distributed cylinders are arranged in the connecting frame, and the cylinders in the connecting frame contact and support the support plate, so as to disperse the squeezing force of the support frame on the support plate to the connecting frame, thereby preventing the support plate from being deformed due to concentrated force.

[0007] As a preferred embodiment of the present invention, the fine-tuning mechanism includes: a first bolt, threadedly connected to the connecting frame, the first bolt is used to squeeze and fix the positions of the support frame and the connecting block; a fixing rod, slidably connected in the connecting block, the fixing rod is fixedly connected to the first bolt; a self-locking component, arranged on the first bolt, for locking the position of the support frame relative to the connecting frame.

[0008] As a preferred embodiment of the present invention, the self-locking assembly includes: a connecting plate, which is connected to the first bolt for limiting rotation; a limiting block, which is slidably connected to the lower part of the connecting plate, a first spring is fixedly connected between the limiting block and the connecting plate, a recess is provided at the lower part of the connecting block, and the limiting block is used to be inserted into the recess of the connecting block to relatively fix the connecting frame and the support frame.

[0009] As a preferred embodiment of the present invention, the synchronous control mechanism includes: a fixed column fixedly connected in the connecting frame; two sliding rings, both slidably connected to the fixed column, the first sliding frame and the second sliding frame are both rotatably connected to a rotating plate, one sliding ring is rotatably connected to the rotating plates on the two first sliding frames, and the other sliding ring is rotatably connected to the rotating plates on the two second sliding frames; an adjustment component is arranged on the connecting frame, and is used to change and lock the positions of the two sliding rings.

[0010] As a preferred embodiment of the present invention, the fixed column is located at the center of the connecting frame, the two rotating plates connected to the same sliding ring are mirror-distributed, and the center of the rectangular frame formed by the first sliding frame and the second sliding frame coincides with the center of the connecting frame, so as to center the gravity of the four support frames on the connecting frame, thereby facilitating rapid adjustment of the positions of the four support frames.

[0011] As a preferred embodiment of the present invention, the adjustment assembly includes: two adjustment bolts, both of which are rotatably connected to the connecting frame; two sliding plates, respectively fixed to the corresponding sliding rings, the sliding plates are threadedly connected to adjacent adjustment bolts, and the sliding plates and the connecting frame slide in a limited position, so that the sliding plates and the sliding rings move up and down synchronously.

[0012] As a preferred embodiment of the present invention, it also includes: two limiting mechanisms, respectively arranged at one end of the two first sliding frames, for making the horizontal offset force exerted on the support frame directly act on the connecting frame, the limiting mechanism includes: a sliding frame, slidably connected to one end of the first sliding frame, the sliding frame is slidably connected to the adjacent second sliding frame, the sliding frame is located at the intersection of the first sliding frame and the second sliding frame, and the two first sliding frames and the two second sliding frames are slidably connected with a locking frame; two connecting bent rods, both of which are rotatably connected to the sliding frame, the connecting bent rod is rotatably connected to the adjacent locking frame, the rotational connection between the connecting bent rod and the locking frame is biased toward the inner wall of the connecting frame, and the locking frame locks the relative position of the first sliding frame and the second sliding frame by deflection; a locking assembly, arranged on the connecting frame, for actively controlling the deflection of the locking frame.

[0013] As a preferred embodiment of the present invention, the inner edge of the locking frame is configured as a slope, and the slope of the locking frame is used to fit the first sliding frame or the second sliding frame, so that the relative fixed state of the first sliding frame and the second sliding frame is more stable.

[0014] As a preferred embodiment of the present invention, the locking assembly includes: a first telescopic rod, fixedly connected to the sliding frame, the first telescopic rod is connected to a liquid guide tube; two second telescopic rods, both fixedly connected to the sliding frame, the two second telescopic rods are connected to the liquid guide tube, and a second spring is fixedly connected between the telescopic end of the second telescopic rod and the adjacent locking frame; a second bolt, threadedly connected to a corner of the connecting frame, the second bolt is fixedly connected to the telescopic end of the first telescopic rod through a rotating block with a third spring, and the first telescopic rod, the liquid guide tube and the second telescopic rod are all filled with hydraulic oil.

[0015] Compared with the prior art, the present invention has the following advantages: 1. The present invention fine-tunes the relative position of the connecting frame and the support frame through the relative movement of the connecting block and the support frame, so that the center of gravity of the tower crane is located at the center of the support plate, ensuring the uniformity of the structural force on the connecting frame and improving the safety of the tower crane and the staff.

[0016] 2. The present invention synchronously controls the up and down movement of two sliding rings in the mechanism to synchronously adjust the relative positions of the first sliding frame and the second sliding frame, thereby achieving the purpose of quickly changing the relative spacing between the four support frames, so that the centers of the four support frames are always located at the center of the support plate, which is convenient for subsequent fine-tuning of the center.

[0017] 3. The present invention locks the relative positions of the first sliding frame and the second sliding frame through the deflection of the locking frame in the limiting mechanism and the rotational connection between the sliding frame and the connecting bent rod, so that the force of the tower crane is dispersed on the connecting frame, preventing damage to the adjusting bolts and the sliding plate threaded adjustment parts, thereby ensuring the safety of the tower crane during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of the parts of the connecting frame and the supporting frame of the present invention; Figure 3 It is a three-dimensional structural schematic diagram of the parts at the first sliding frame and the second sliding frame of the present invention; Figure 4 It is a three-dimensional structural schematic diagram of the parts of the fixed column and the sliding ring of the present invention; Figure 5 It is a three-dimensional structural schematic diagram of the parts at the support frame and the connecting block of the present invention; Figure 6 It is a three-dimensional structural schematic diagram of the connection block and the parts at the first bolt of the present invention; Figure 7 It is a three-dimensional structural schematic diagram of the parts at the first bolt and the limit block of the present invention; Figure 8 It is a three-dimensional structural schematic diagram of the parts at the first bolt and the fixing rod of the present invention; Fig. 9 It is a three-dimensional structural schematic diagram of the parts of the sliding frame and the locking frame of the present invention; Fig.10 It is a three-dimensional structural schematic diagram of the locking frame and the parts at the connecting bent rod of the present invention; Fig.11 It is a schematic diagram of the three-dimensional structure of the connecting frame and the parts at the second bolt of the present invention.

[0019] The accompanying drawings are marked as follows: 1-connecting frame, 2-support plate, 3-first sliding frame, 4-second sliding frame, 5-connecting frame, 6-support frame, 7-connecting block, 201-first bolt, 202-fixing rod, 301-connecting plate, 302-limiting block, 401-fixing column, 402-sliding ring, 403-rotating plate, 501-adjusting bolt, 502-sliding plate, 601-sliding frame, 602-locking frame, 603-connecting bent rod, 701-first telescopic rod, 702-liquid guide tube, 703-second telescopic rod, 704-second bolt. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1 -Attached Fig.11, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0021] Example 1: In order to adapt to tower cranes of different specifications, the existing tower crane foundation conversion, installation and leveling device needs to adjust the position of the fixed legs on the tower crane foundation conversion, installation and leveling device. However, after the position of the fixed legs is changed, it is impossible to ensure that the center of gravity of the tower crane is centered on the tower crane foundation conversion, installation and leveling device, which causes certain parts of the tower crane foundation conversion device to be subjected to excessive stress, accelerates structural fatigue, and increases the risk of tilting or overturning the tower crane.

[0022] A multifunctional tower crane foundation conversion installation leveling device, please refer to the attached Figure 1 -Attached Figure 8 As shown, it includes: a connecting frame 1, a supporting plate 2 is arranged on the connecting frame 1, and two first sliding frames 3 and two second sliding frames 4 are slidingly connected in a limited position in the connecting frame 1; four fixing units are respectively located at the intersection of the two first sliding frames 3 and the two second sliding frames 4; the fixing unit includes: a connecting frame 5, a supporting frame 6, two connecting blocks 7 and two fine-tuning mechanisms; the connecting frame 5 is installed at the intersection of the first sliding frame 3 and the adjacent second sliding frame 4; the supporting frame 6 is slidably connected to the supporting plate 2, and a tension spring is fixed between the supporting frame 6 and the connecting frame 5; the two connecting blocks 7 are both slidably connected to the supporting frame 6, and the connecting blocks 7 are used to squeeze the connecting frame 5; the fine-tuning mechanism is arranged on the connecting frame 5 and is used to fine-tune the position of the supporting frame 6; the synchronous control mechanism is arranged in the connecting frame 1 and is used to synchronously change the spacing between the two first sliding frames 3 and the two second sliding frames 4, and a plurality of evenly distributed cylinders are arranged in the connecting frame 1, The inner cylinder of the connecting frame 1 contacts and supports the support plate 2, and is used to disperse the extrusion force of the support frame 6 on the support plate 2 to the connecting frame 1 to prevent the support plate 2 from being deformed due to concentrated force. The fine-tuning mechanism includes: a first bolt 201, which is threadedly connected to the connecting frame 5, and the first bolt 201 is used to squeeze and fix the position of the support frame 6 and the connecting block 7; a fixing rod 202, which is slidably connected to the connecting block 7, and the fixing rod 202 is fixedly connected to the first bolt 201; a self-locking component, which is arranged on the first bolt 201, and is used to lock the position of the support frame 6 relative to the connecting frame 5, and the self-locking component includes: a connecting plate 301, which is limitedly rotatably connected to the first bolt 201; a limiting block 302, which is slidably connected to the lower part of the connecting plate 301, and a first spring is fixedly connected between the limiting block 302 and the connecting plate 301, and a recess is provided at the lower part of the connecting block 7, and the limiting block 302 is used to be inserted into the recess of the connecting block 7, so that the connecting frame 5 and the support frame 6 are relatively fixed.

[0023] In the above scheme, it is intended to solve the problem that after the position of the support frame 6 is changed, it is impossible to accurately ensure that the center of gravity of the tower crane is centered on the connecting frame 1, resulting in unbalanced force on the structures of various parts of the connecting frame 1, threatening the safety of the tower crane; pressure sensing sheets are provided at the four positions where the support plate 2 contacts the connecting frame 1, which are used to monitor the force at various places of the support plate 2, establish a pressure distribution model, obtain the center of gravity offset data of the tower crane through the pressure distribution model, and establish a correction equation based on the center of gravity offset data, slightly adjust the positions of the four support frames 6, so that the center of gravity of the tower crane is centered on the connecting frame 1, and suppress the overturning tendency of the tower crane, the first sliding frame 3 and the adjacent second sliding frame 4 are perpendicular to each other, the tension spring between the connecting frame 5 and the support frame 6 is always in a stretched state, and is used to drive the support frame 6 to move synchronously when the connecting frame 5 moves, the facing surfaces of the connecting frame 5 and the support frame 6 are always parallel to each other, and there is a right-angle gap between the connecting frame 5 and the support frame 6, the connecting block 7 is a splicing part, and the horizontal cross-section of the connecting block 7 is a right-angle trapezoid. According to the position where the inclined surface of the connecting block 7 contacts the connecting frame 5, the four support frames 6 are controlled to be freely adjusted on the horizontal plane.

[0024] Attach Figure 6 Taking the connecting block 7 on the middle front side as an example, the inclined surface of the connecting block 7 is inclined to the left from front to back, and the inclined surface of the limit block 302 is inclined to the left from top to bottom. Initially, the first spring connected to the limit block 302 is in a compressed state, and the elastic coefficient of the tension spring between the connecting frame 5 and the support frame 6 is greater than the elastic coefficient of the first spring connected to the limit block 302. The lower side of the limit block 302 fits the surface of the support plate 2, and the fixing rod 202 and the connecting block 7 can move relative to each other back and forth. The distance moved by the fixing rod 202 in the connecting block 7 is greater than the relative movement distance between the connecting plate 301 and the limit block 302. When the first bolt 201 drives the connecting block 7 to move to the right, the limit block 302 first releases the lock on the connecting block 7, and the space where the fixing rod 202 is located in the connecting block 7 is a rectangular cavity, and the fixing rod 202 can move freely on the horizontal plane in the rectangular cavity of the connecting block 7.

[0025] Working process: when the operator uses this device as a conversion section to fix tower crane foundation sections of different specifications, the operator first connects the lower part of the connection frame 1 to the steel plate in the concrete through bolts, and then quickly adjusts the distance between the two first sliding frames 3 and the two second sliding frames 4 through the synchronous control mechanism according to the size of the tower crane foundation section to be installed, so that the first sliding frame 3 and the second sliding frame 4 drive the connection frame 5 at the intersection to move, and the connection frame 5 drives the support frame 6 through the tension spring to quickly complete the position adjustment, and then slightly adjusts the position of the four support frames 6 according to the data feedback from the four pressure sensing sheets on the support plate 2. If the center of gravity is biased to the rear, the operator only needs to adjust the position of the two front connection blocks 7 and the two rear connection blocks 7 to attach. Figure 6Taking the connecting block 7 on the middle front side as an example, the operator rotates the first bolt 201, and the first bolt 201 drives the connecting plate 301 to move to the right, and the first spring connected to the limit block 302 relaxes. Then the first bolt 201 drives the limit block 302 to move out of the groove of the connecting block 7 through the connecting plate 301.

[0026] During the movement of the first bolt 201 to the right, the first bolt 201 drives the connecting block 7 to move to the right through the fixing rod 202, and the supporting frame 6 drives the connecting block 7 to move forward under the tension of the tension spring connected thereto, and the fixing rod 202 moves backward in the connecting block 7, and at the same time, the two first bolts 201 on the rear side are rotated in the opposite direction, and the connecting block 7 on the rear side moves into the right-angle gap between the connecting frame 5 and the supporting frame 6, pushing the two supporting frames 6 on the rear side forward, and the supporting frame 6 on the rear side stretches the tension spring connected thereto, and the limit block 302 is always located in the groove of the connecting block 7. When the first bolt 201 on the rear side stops rotating, the connecting block 7 is in a locked state, and finally the center of gravity monitored by the pressure sensing sheet at the supporting plate 2 is adjusted forward, and the center of gravity is centered on the connecting frame 1, and the two first bolts 201 on the front side are rotated in the opposite direction to attach Figure 6 Taking the connecting block 7 on the middle front side as an example, the first bolt 201 inserts the limit block 302 into the groove of the connecting block 7 through the connecting plate 301. As the first bolt 201 rotates, the first spring between the connecting plate 301 and the limit block 302 is compressed, and the limit block 302 locks the position of the connecting block 7. At this point, the positions of all parts in the device are fixed, and the operator can install the foundation section on the support frame 6 to install the tower crane.

[0027] For further information, please refer to the attached Figure 3 and attached Figure 4 As shown, the synchronous control mechanism includes: a fixed column 401, fixedly connected in the connection frame 1; two sliding rings 402, both slidably connected to the fixed column 401, the first sliding frame 3 and the second sliding frame 4 are both rotatably connected to the rotating plate 403, one sliding ring 402 is rotatably connected to the rotating plates 403 on the two first sliding frames 3, and the other sliding ring 402 is rotatably connected to the rotating plates 403 on the two second sliding frames 4; an adjustment component is arranged on the connection frame 1, and is used to change and lock the positions of the two sliding rings 402, the fixed column 401 is located in the center of the connection frame 1, and the same sliding ring 402 The two connected rotating plates 403 are distributed in a mirror image, and the center of the rectangular frame formed by the first sliding frame 3 and the second sliding frame 4 coincides with the center of the connecting frame 1, which is used to center the center of gravity of the four supporting frames 6 on the connecting frame 1, so as to facilitate the rapid adjustment of the positions of the four supporting frames 6. The adjustment component includes: two adjusting bolts 501, both of which are rotatably connected to the connecting frame 1; two sliding plates 502, which are respectively fixed to corresponding sliding rings 402, and the sliding plates 502 are threadedly connected to the adjacent adjusting bolts 501. The sliding plates 502 and the connecting frame 1 slide in a limited position, so that the sliding plates 502 and the sliding rings 402 move up and down synchronously.

[0028] In the above scheme, the purpose is to control the two first sliding frames 3 and the two second sliding frames 4 to move closer or farther away synchronously, so that the center of the rectangle where the four support frames 6 are located is always located at the exact center of the connecting frame 1, thereby reducing the fine-tuning range of the subsequent support frame 6 position and improving the accuracy of the center of gravity positioning of the device; the two rotating plates 403 connected to the sliding ring 402 always maintain an inclined state, so as to enable the sliding ring 402 to move along the fixed column 401, so as to quickly enable the two first sliding frames 3 (two second sliding frames 4) to move toward or away from each other synchronously, and the two first sliding frames 3 are both located below the two second sliding frames 4. The inclination angle of the thread on the adjusting bolt 501 is an acute angle, so as to enable the adjusting bolt 501 to self-lock after adjusting the position of the sliding plate 502, thereby ensuring the stability of the adjusted positions of the first sliding frame 3 and the second sliding frame 4.

[0029] Workflow: After the connection frame 1 is connected to the steel plate in the foundation concrete by bolts, if the size of the foundation section to be installed is small, the operator rotates the two adjusting bolts 501, and the adjusting bolts 501 push the sliding plate 502 downward, and the two sliding rings 402 move downward along the fixed column 401. The two sliding rings 402 both reduce the rectangular area composed of the two first sliding frames 3 and the two second sliding frames 4 through the rotating plate 403, and the connection frame 5 moves with the change of the intersection of the first sliding frame 3 and the second sliding frame 4. When the spacing between the four support frames 6 is the same as the spacing at the connection of the foundation section, stop rotating the two adjusting bolts 501, and the rapid adjustment of the positions of the four support frames 6 is completed. After that, according to the center of gravity analysis of the pressure sensing sheet at the support plate 2, the eight first bolts 201 are quickly and selectively rotated, so that the connection block 7 can finely adjust the position of the support frame 6, so that after the tower crane is installed, the center of gravity is centered on the connection frame 1, ensuring that the structure of the connection frame 1 is evenly stressed.

[0030] If the specifications of the tower crane are changed later, the tower crane must be disassembled first, and then the two adjusting bolts 501 are rotated to adjust the positions of the four support frames 6 again, and then the above-mentioned center of gravity fine-tuning operation is repeated, and the tower crane can be assembled again for work.

[0031] Example 2: Based on Example 1, please refer to the attached Figure 5 and attached Fig. 9 -Attached Fig.11As shown, it also includes: two limiting mechanisms, respectively arranged at one end of the two first sliding frames 3, used to make the horizontal offset force on the support frame 6 directly act on the connecting frame 1, the limiting mechanism includes: a sliding frame 601, slidably connected to one end of the first sliding frame 3, the sliding frame 601 is slidably connected to the adjacent second sliding frame 4, the sliding frame 601 is located at the intersection of the first sliding frame 3 and the second sliding frame 4, and the two first sliding frames 3 and the two second sliding frames 4 are slidably connected with a locking frame 602; two connecting bent rods 603, both rotatably connected to the sliding frame 601, the connecting bent rod 603 is rotatably connected to the adjacent locking frame 602, the rotation connection between the connecting bent rod 603 and the locking frame 602 is biased toward the inner wall of the connecting frame 1, and the locking frame 602 locks the relative position of the first sliding frame 3 and the second sliding frame 4 by deflection; a locking component, arranged on the connecting frame 1, used to actively To control the deflection of the locking frame 602, the inner edge of the locking frame 602 is set as a slope, and the slope of the locking frame 602 is used to fit the first sliding frame 3 or the second sliding frame 4, so that the relative fixed state of the first sliding frame 3 and the second sliding frame 4 is more stable. The locking assembly includes: a first telescopic rod 701, which is fixed to the sliding frame 601, and the first telescopic rod 701 is connected to the liquid guide tube 702; two second telescopic rods 703, both of which are fixed to the sliding frame 601, and the two second telescopic rods 703 are connected to the liquid guide tube 702, and a second spring is fixed between the telescopic end of the second telescopic rod 703 and the adjacent locking frame 602; a second bolt 704, which is threadedly connected to a corner of the connecting frame 1, and a third spring is fixed between the second bolt 704 and the telescopic end of the first telescopic rod 701 through a rotating block, and the first telescopic rod 701, the liquid guide tube 702 and the second telescopic rod 703 are all filled with hydraulic oil.

[0032] In the above scheme, the tower crane is intended to solve the problem that during the process of fixing and working on the support frame 6, the tower crane exerts a horizontal force on the support frame 6, and the force will eventually act on the threaded connection between the adjusting bolt 501 and the sliding plate 502. Due to the large gravity of the tower crane, the thread on the adjusting bolt 501 is easily damaged, which greatly affects the safety of the tower crane and the workers thereon; the two sliding frames 601 are respectively located at one of the diagonals of the rectangular frame formed by the two first sliding frames 3 and the two second sliding frames 4. Only by locking the two intersections of the first sliding frames 3 and the second sliding frames 4, the two first sliding frames 3 and the two second sliding frames 4 can be relatively fixed. The rotation connection between the connecting bent rod 603 and the locking frame 602 is biased toward the inner wall of the connecting frame 1, and the locking frame 602 locks the relative positions of the first sliding frame 3 and the second sliding frame 4 by deflection, so that the first sliding frame 3 and the second sliding frame 4 cannot move toward the inner wall of the connecting frame 1 under the action of the tower crane. According to the locking method of the locking frame 602, the greater the force of the tower crane, the more stable the relative fixation of the first sliding frame 3 and the second sliding frame 4. The first telescopic rod 701 and the second telescopic rod 703 are both existing mechanisms (both are composed of a cylinder, a piston and a sliding rod, the piston slides in a sealed manner in the cylinder, and the sliding rod controls the inflow and outflow of hydraulic oil in the cylinder through the piston).

[0033] Working process: in the process of adjusting the positions of the first sliding frame 3 and the second sliding frame 4, the sliding frame 601 slides synchronously with the first sliding frame 3 and the second sliding frame 4, and the above-mentioned fine-tuning operation of the support frame 6 is repeated. When the center of gravity adjustment on the support plate 2 is completed, before installing the tower crane foundation section, the operator manually rotates the two second bolts 704. Taking the second bolt 704 on the left front side as an example, the second bolt 704 moves backward into the connecting frame 1, and the second bolt 704 pushes the telescopic end of the first telescopic rod 701 to retract through the third spring connected thereto. The hydraulic oil in the first telescopic rod 701 enters the two second telescopic rods 703 through the guide tube 702. The telescopic end of the second telescopic rod 703 extends out and pushes the adjacent locking frame 602 to deflect through the connected second spring. The inclined surface of the locking frame 602 fits the first sliding frame 3, and the inclined surface of the other locking frame 602 fits the second sliding frame 4. During the operation of the tower crane, there is a horizontal force on the four support frames 6. The four support frames 6 make the rectangular frame composed of the two first sliding frames 3 and the two second sliding frames 4 tend to expand to attach Fig. 9For example, the first sliding frame 3 tends to move forward, and the second sliding frame 4 tends to move to the left. The second sliding frame 4 eccentrically pulls the locking frame 602 on the right side through the connecting bent rod 603 on the right side. Since the locking frame 602 is deflected and locked on the first sliding frame 3, the second sliding frame 4 cannot move to the left. Similarly, the first sliding frame 3 cannot move forward. The horizontal force of the tower crane device acts on the connecting frame 1 through the supporting frame 6, the connecting block 7, the connecting frame 5, the first sliding frame 3 and the second sliding frame 4, thereby ensuring the stability of the parts and structure of the connecting frame 1 and improving the safety of the threaded connection between the adjusting bolt 501 and the sliding plate 502.

[0034] The basic principles, main features and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions in the specification are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A multifunctional tower crane foundation conversion installation and leveling device, characterized in that: include: A connecting frame (1), wherein a supporting plate (2) is arranged on the connecting frame (1), and two first sliding frames (3) and two second sliding frames (4) are connected in a limited sliding manner in the connecting frame (1); Four fixing units, respectively located at the intersections of the two first sliding frames (3) and the two second sliding frames (4); The fixing unit comprises: a connecting frame (5), a supporting frame (6), two connecting blocks (7) and two fine-tuning mechanisms; The connecting frame (5) is installed at the intersection of the first sliding frame (3) and the adjacent second sliding frame (4); The support frame (6) is slidably connected to the support plate (2), and a tension spring is fixedly connected between the support frame (6) and the connecting frame (5); The two connection blocks (7) are both slidably connected to the support frame (6), and the connection blocks (7) are used to squeeze the connection frame (5); The fine-adjustment mechanism is arranged on the connecting frame (5) and is used for fine-adjusting the position of the supporting frame (6); A synchronous control mechanism is arranged in the connection frame (1) and is used for synchronously changing the distance between the two first sliding frames (3) and the two second sliding frames (4).

2. The multifunctional tower crane foundation conversion installation and leveling device according to claim 1 is characterized in that: A plurality of evenly distributed cylinders are arranged inside the connection frame (1), and the cylinders inside the connection frame (1) contact and support the support plate (2), so as to disperse the squeezing force of the support frame (6) on the support plate (2) to the connection frame (1), thereby preventing the support plate (2) from being deformed due to concentrated force.

3. The multifunctional tower crane foundation conversion installation and leveling device according to claim 2 is characterized in that: The fine-tuning mechanism comprises: A first bolt (201) threadedly connected to the connecting frame (5), the first bolt (201) being used to squeeze and fix the positions of the supporting frame (6) and the connecting block (7); A fixing rod (202) is slidably connected in the connecting block (7), and the fixing rod (202) is fixedly connected to the first bolt (201); A self-locking component is arranged on the first bolt (201) and is used to lock the position of the support frame (6) relative to the connecting frame (5).

4. The multifunctional tower crane foundation conversion installation and leveling device according to claim 3 is characterized in that: The self-locking component comprises: A connecting plate (301) connected to the first bolt (201) for limited rotation; A limit block (302) is slidably connected to the lower part of the connecting plate (301); a first spring is fixedly connected between the limit block (302) and the connecting plate (301); a recess is provided at the lower part of the connecting block (7); the limit block (302) is used to be inserted into the recess of the connecting block (7), so that the connecting frame (5) and the supporting frame (6) are relatively fixed.

5. The multifunctional tower crane foundation conversion installation and leveling device according to claim 4 is characterized in that: The synchronous control mechanism comprises: A fixed column (401) fixedly connected to the connection frame (1); Two sliding rings (402) are both slidably connected to the fixed column (401); the first sliding frame (3) and the second sliding frame (4) are both rotatably connected to a rotating plate (403); one sliding ring (402) is rotatably connected to the rotating plates (403) on the two first sliding frames (3); and the other sliding ring (402) is rotatably connected to the rotating plates (403) on the two second sliding frames (4); An adjustment component is arranged on the connection frame (1) and is used to change and lock the positions of the two sliding rings (402).

6. The multifunctional tower crane foundation conversion installation and leveling device according to claim 5 is characterized in that: The fixed column (401) is located at the exact center of the connecting frame (1); the two rotating plates (403) connected to the same sliding ring (402) are distributed in a mirror image; the center of the rectangular frame formed by the first sliding frame (3) and the second sliding frame (4) coincides with the center of the connecting frame (1), so that the center of gravity of the four supporting frames (6) is centered on the connecting frame (1), thereby facilitating rapid adjustment of the positions of the four supporting frames (6).

7. The multifunctional tower crane foundation conversion installation and leveling device according to claim 6 is characterized in that: The adjustment component comprises: Two adjusting bolts (501) are both rotatably connected to the connecting frame (1); Two sliding plates (502) are respectively fixed to the corresponding sliding rings (402); the sliding plates (502) are threadedly connected to the adjacent adjusting bolts (501); the sliding plates (502) and the connecting frame (1) slide in a limited manner, so that the sliding plates (502) and the sliding rings (402) move up and down synchronously.

8. The multifunctional tower crane foundation conversion installation and leveling device according to claim 7 is characterized in that: include: Two limiting mechanisms are respectively arranged at one end of the two first sliding frames (3), and are used to make the horizontal displacement force exerted on the support frame (6) directly act on the connection frame (1), and the limiting mechanisms include: a sliding frame (601) slidably connected to one end of the first sliding frame (3); the sliding frame (601) is slidably connected to the adjacent second sliding frame (4); the sliding frame (601) is located at the intersection of the first sliding frame (3) and the second sliding frame (4); and locking frames (602) are slidably connected to the two first sliding frames (3) and the two second sliding frames (4); Two connecting curved rods (603) are both rotatably connected to the sliding frame (601); the connecting curved rod (603) is rotatably connected to the adjacent locking frame (602); the rotatable connection between the connecting curved rod (603) and the locking frame (602) is deflected toward the inner wall of the connecting frame (1); the locking frame (602) locks the relative position of the first sliding frame (3) and the second sliding frame (4) by deflection; A locking component is arranged on the connecting frame (1) and is used to actively control the deflection of the locking frame (602).

9. The multifunctional tower crane foundation conversion installation and leveling device according to claim 8 is characterized in that: The inner edge of the locking frame (602) is arranged as an inclined surface, and the inclined surface of the locking frame (602) is used to fit the first sliding frame (3) or the second sliding frame (4), so that the relative fixed state of the first sliding frame (3) and the second sliding frame (4) is more stable.

10. The multifunctional tower crane foundation conversion installation and leveling device according to claim 9 is characterized in that: The locking assembly comprises: A first telescopic rod (701) is fixedly connected to the sliding frame (601), and the first telescopic rod (701) is connected to a liquid guide tube (702); Two second telescopic rods (703) are both fixedly connected to the sliding frame (601), the two second telescopic rods (703) are both connected to the liquid guiding tube (702), and a second spring is fixedly connected between the telescopic end of the second telescopic rod (703) and the adjacent locking frame (602); A second bolt (704) is threadedly connected to a corner of the connection frame (1); a third spring is fixedly connected between the second bolt (704) and the telescopic end of the first telescopic rod (701) via a rotating block; and hydraulic oil is filled in the first telescopic rod (701), the liquid guiding tube (702) and the second telescopic rod (703).

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