Supporting and lifting frame suitable for punching of sealing plate

Abstract

The utility model provides a support lifting frame suitable for blanking plate holing, which comprises a bearing structure and a base, a lifting mechanism for lifting a blanking plate is arranged on the bearing structure, two ends of the bearing structure are respectively connected with a first stand column and a second stand column, and the lower end of the first stand column and the lower end of the second stand column are both connected with the base. First supporting structures are obliquely arranged on the two sides of the first stand column, second supporting structures are obliquely arranged on the two sides of the second stand column, the first supporting structures are used for connecting the first stand column and the base, the second supporting structures are used for connecting the second stand column and the base, and third supporting structures and fourth supporting structures are obliquely arranged on the lower portions of the two sides of the bearing structure correspondingly. In the cutting process, the stable supporting effect can be achieved, it is guaranteed that stability is kept in the sealing plate lifting process, construction risks caused by the unstable structure are reduced, and the safety of personnel can be guaranteed; and the situation that the truck crane bears a large instantaneous load in the cutting process and at the moment of final cutting, so that the crane is unstable, and serious consequences are caused is avoided.

Description

Technical Field

[0001] The utility model belongs to the field of construction engineering construction, and particularly relates to a support lifting frame applicable to opening holes in sealing plates. Background Art

[0002] In the existing technical solutions, the operation process of opening holes in sealing plates generally includes the following steps: First, use a crane to fix the sealing plate. Specifically, the steel wire rope is passed through the sealing plate in advance, and then the sealing plate is lifted by the lifting capacity of the crane to facilitate subsequent cutting work. However, there are some obvious problems in the existing technical solutions. The main problem is that before the sealing plate is completely cut, the truck crane needs to bear the lifting, fixing and supporting tasks of the sealing plate. During the cutting process, especially at the moment when the sealing plate is finally cut, a large instantaneous load will be generated. This instantaneous load may cause the truck crane to become unstable, and if not properly controlled, it may lead to serious safety accidents, causing personal injuries or equipment damage. Content of the Utility Model

[0003] The purpose of the utility model is to provide a support lifting frame applicable to opening holes in sealing plates to solve the problems existing in the above-mentioned prior art.

[0004] Based on this, the utility model provides a support lifting frame applicable to opening holes in sealing plates, which includes a load-bearing structure and a base. A lifting mechanism for lifting the sealing plate is also provided on the load-bearing structure. The two ends of the load-bearing structure are respectively connected with a first upright column and a second upright column. The lower end of the first upright column is connected with the base, and the lower end of the second upright column is connected with the base. First support structures are obliquely arranged on both sides of the first upright column, and second support structures are obliquely arranged on both sides of the second upright column. The first support structure is used to connect the first upright column and the base, and the second support structure is used to connect the second upright column and the base. Third support structures and fourth support structures are obliquely arranged on the lower parts of both sides of the load-bearing structure. The third support structure is used to connect the load-bearing structure and the first upright column, and the fourth support structure is used to connect the load-bearing structure and the second upright column.

[0005] For a support lifting frame applicable to opening holes in sealing plates as described above, the load-bearing structure is a member with an I-shaped cross-section, the first upright column and the second upright column are members with an I-shaped cross-section, and the flange part of the load-bearing structure is welded and connected with the first upright column and the second upright column.

[0006] For a support lifting frame applicable to opening holes in sealing plates as described above, the lifting mechanism is arranged at the central position of the load-bearing structure, and the lifting mechanism is also used to fix the sealing plate.

[0007] A support lifting frame applicable to opening holes in the sealing plate as described above, the inclination angle β of the first support structure is 45 - 85 degrees relative to the horizontal line, and the inclination angle β of the second support structure is 45 - 85 degrees relative to the horizontal line.

[0008] A support lifting frame applicable to opening holes in the sealing plate as described above, at least two first support structures are provided, at least two second support structures are provided, the first support structure is connected to the base and the first column by double-sided welding, and the second support structure is connected to the base and the second column by double-sided welding.

[0009] A support lifting frame applicable to opening holes in the sealing plate as described above, the inclination angle α of the third support structure relative to the load-bearing structure is 30 - 60 degrees, and the inclination angle α of the fourth support structure relative to the load-bearing structure is 30 - 60 degrees.

[0010] A support lifting frame applicable to opening holes in the sealing plate as described above, the third support structure is an I-shaped cross-section member, the fourth support structure is an I-shaped cross-section member, the third support structure is connected to the load-bearing structure and the first column by double-sided full welding, and the fourth support structure is connected to the load-bearing structure and the second column by double-sided full welding.

[0011] A support lifting frame applicable to opening holes in the sealing plate as described above, the base is an I-shaped cross-section member, and the flange part of the base is welded to the first column and the second column.

[0012] A support lifting frame applicable to opening holes in the sealing plate as described above, and a detachable pulley is further provided on the base.

[0013] A support lifting frame applicable to opening holes in the sealing plate as described above, and a hook-shaped structure for lifting and fixing is provided on the lifting mechanism.

[0014] Implementing the embodiments of the present utility model has the following beneficial effects:

[0015] 1. Instead of directly using a truck crane to lift the sealing plate for cutting, the present utility model designs a support lifting frame applicable to opening holes in the sealing plate. Through the combined connection relationship of the load-bearing structure, the base, the lifting mechanism, the first column, the second column, and multiple support structures, a stable support effect can be provided during the cutting process, ensuring stability during the lifting of the sealing plate, reducing construction risks caused by unstable structures, and ensuring the safety of personnel; avoiding the truck crane from bearing a large instantaneous load during the cutting process and at the moment when cutting is completed finally, resulting in the instability of the crane and causing serious consequences.

[0016] 2. The utility model adopts a modular design. The two ends of the load-bearing structure are respectively connected with a first column and a second column. The lower end of the first column is connected with the base. This structural design can be adapted to various areas of sealing plate cutting at any time. Moreover, the bottom of the base is provided with moving pulleys, which is convenient for movement, reduces the transfer time, speeds up the construction progress, and saves the construction period.

[0017] The load-bearing structure, the base, the lifting mechanism, the first column, the second column and multiple support structures of the utility model adopt I-shaped cross-section members. The material design takes into account repeated use, is easy to maintain and repair, has an extremely low loss rate, a high turnover rate, and can be used multiple times. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 It is a front view schematic diagram of an embodiment of the utility model;

[0021] Figure 2 It is a schematic diagram of the use of the utility model in cooperation with a forklift;

[0022] Figure 3 It is a side view schematic diagram of an embodiment of the utility model;

[0023] Figure 4 It is a top view schematic diagram of an embodiment of the utility model;

[0024] Figure 5 It is a structural schematic diagram of the second column and the second support structure of an embodiment of the utility model;

[0025] Figure 6 It is a structural schematic diagram of the load-bearing structure and the third support structure and the fourth support structure of an embodiment of the utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0027] The present utility model discloses a support lifting frame applicable to opening holes in a sealing plate, which includes a load-bearing structure 1 and a base 2. A lifting mechanism 4 for lifting the sealing plate 3 is further provided on the load-bearing structure 1. The two ends of the load-bearing structure 1 are respectively connected with a first upright post 10 and a second upright post 11. The lower end of the first upright post 10 is connected to the base 2, and the lower end of the second upright post 11 is connected to the base 2. First support structures 100 are obliquely arranged on both sides of the first upright post 10, and second support structures 110 are obliquely arranged on both sides of the second upright post 11. The first support structure 100 is used to connect the first upright post 10 and the base 2, and the second support structure 110 is used to connect the second upright post 11 and the base 2. Third support structures 12 and fourth support structures 13 are obliquely arranged on the lower parts of both sides of the load-bearing structure 1. The third support structure 12 is used to connect the load-bearing structure 1 and the first upright post 10, and the fourth support structure 13 is used to connect the load-bearing structure 1 and the second upright post 11. Specifically, as Figure 1 shown, in this embodiment, the load-bearing structure 1 is arranged at the uppermost position, and the length A is preferably 3m. As the load-bearing main beam of the present utility model, the load-bearing structure 1 is preferably made of 25a I-beam. The structural design of the I-beam endows it with good strength and rigidity. The thickness of the waist is usually larger than that of the legs, which helps to resist bending and torsion. At the same time, the presence of the legs increases the moment of inertia of the cross-section and improves the bending resistance of the I-beam. Figure 1 It can also be seen that the third support structure 12 is used to connect the load-bearing structure 1 and the first upright post 10. When viewed from the front, the three form a stable triangular structure. According to the characteristics of a triangle: a triangle is the only polygon whose shape will not change when all three sides are fixed. Once the three side lengths of a triangle are determined, no matter what external force is applied, as long as the side lengths are not damaged, the shape of the triangle will not change. This characteristic enables a triangle to maintain its structural integrity when bearing external loads. In this embodiment, the lifting mechanism is a 5t sliding hoist. Specifically, "5t" indicates that its rated load is 5 tons, that is, under normal working conditions, this hoist can safely lift a load with a maximum weight of 5000 kilograms. As for its sliding function, compared with traditional fixed hoists, a sliding hoist can slide along a certain track on the main beam or other structures of the support frame. This design increases the flexibility of use, allowing the hoist to move along the main beam as needed while lifting heavy objects. As Figure 1As shown, in this technical solution, the lifting mechanism 4, i.e., a 5t sliding hoist, is installed at the middle position of the main beam of the support frame and is connected to the lifting steel chain on the sealing plate through a chain. This embodiment can also be used in conjunction with a forklift 5. As Figure 2 shown, the description of the cooperation process is as follows: Four lifting holes are drilled inside the sealing plate 3 by water drilling. A steel chain is passed through every two holes; Holes are drilled at the four corners of the cutting range of the sealing plate 3 as the cutting rope points. The present utility model is erected on both sides of the sealing plate 3 to be cut. The foregoing can be referred to Figure 4 shown. Two lifting steel chains are fixed to the lifting mechanism 4, and then cutting is carried out. After cutting is completed, it is lifted by the lifting mechanism 4 to a height of 30 cm from the ground, so that the forklift 5 can fork it up with the fork 51, and then it is transported away from the hole. In this embodiment, the length B of the base 2 is preferably 3 m. Preferably, a pulley 20 is provided at the bottom of the base 2 to facilitate movement, reduce the transfer time, speed up the construction progress, and save the construction period; Finally, it is hoisted and loaded by a truck crane.

[0028] Instead of directly using a truck crane to lift the sealing plate for cutting, the present utility model designs a support lifting frame suitable for opening holes in the sealing plate. Through the combined connection relationship of the load-bearing structure, the base, the lifting mechanism, the first column, the second column, and multiple support structures, a stable support function can be provided during the cutting process, ensuring stability during the lifting of the sealing plate and reducing construction risks caused by unstable structures, which can ensure the safety of personnel; Avoid the truck crane bearing a large instantaneous load during the cutting process and at the moment when cutting is finally completed, resulting in the crane becoming unstable and causing serious consequences.

[0029] Furthermore, the load-bearing structure 1 is a member with an I-shaped cross-section, the first column 10 and the second column 11 are members with an I-shaped cross-section, and the flange part of the load-bearing structure 1 is welded to the first column 10 and the second column 11. Specifically, as Figure 1 and Figure 3 shown, the first column 10 and the second column 11 preferably have a length D of 1 m, and the material is 25a I-beam. The flange part of the load-bearing structure 1 can be understood as the leg part of the I-beam. In this embodiment, specifically, the lower flange parts at both ends of the load-bearing structure 1 are welded and fixed to the first column 10 and the second column 11. From the appendix Figure 4 it can be seen that the width A1 of the load-bearing structure 1 and the width B1 of the base 2 are both 116 mm. Then, according to the appendix Figure 1 and appendix Figure 3It can be known that the height C of the load-bearing structure 1, the first upright column 10 and the base 2 is 1366 mm. Combining with the length D of the first upright column 10 and the second upright column 11 in this embodiment, the height of the load-bearing structure 1 and the base 2 is 250 mm (1366 mm - 116 mm - 1000 mm, that is, C - B1 - D). The utility model adopts an I-shaped cross-section member, and the material design takes into account repeated use, is easy to maintain and repair, has an extremely low loss rate, a high turnover rate, and can be used multiple times.

[0030] Furthermore, the lifting mechanism 4 is arranged at the central position of the load-bearing structure 1. Specifically, as Figure 1 shown, in this embodiment, arranging the lifting mechanism 4 at the central position of the load-bearing structure 1 can ensure balance and stability to the greatest extent during the process of opening holes in the sealing plate and cutting, so as to realize that the utility model can provide a stable supporting effect during the cutting process, ensure stability during the process of lifting the sealing plate, reduce the construction risks caused by unstable structure, and ensure the safety of personnel; avoid the lifting crane bearing a large instantaneous load during the cutting process and at the moment after cutting is completed, resulting in the instability of the crane and causing serious consequences.

[0031] Furthermore, the inclination angle β of the first support structure 100 is 45 - 85 degrees relative to the horizontal line, and the inclination angle β of the second support structure 110 is 45 - 85 degrees relative to the horizontal line. Specifically, as Figure 3 and Figure 5 shown, in this embodiment, the inclination angle β of the first support structure 100 relative to the horizontal line is preferably 60 degrees. The first support structure 100 is arranged on both sides of the first upright column 10 and is fixed by double-sided welding with the base 2 and the first upright column 10; the inclination angle β of the second support structure 110 relative to the horizontal line is preferably 60 degrees. The second support structure 110 is arranged on both sides of the second upright column 11 and is fixed by double-sided welding with the base 2 and the second upright column 11; as shown in Figure 5 shown, for the second support structure 110 arranged on both sides of the second upright column 10, the distance length D2 between the center lines of the two ends connected to the base 2 is preferably 1152 mm, and the length D1 of the second support structure 110 itself is 1039 mm in this embodiment. The second support structure 110 arranged on both sides of the second upright column 10 and the base 2 are connected to form a triangular structure shape, and the shape of the second upright column 10 in this triangular shape can be regarded as the "height" of this triangular structure, that is, the vertical line from the vertex of the triangle downwards. This structural design can make the best use of the stable characteristics of the triangle.

[0032] Furthermore, at least two of the first support structures 100 are provided, and at least two of the second support structures 110 are provided. The first support structure 100 is connected to the base 2 and the first column 10 by double-sided welding. The second support structure 110 is connected to the base 2 and the second column 11 by double-sided welding. Specifically, as Figure 3 and Figure 5 shown, the first support structures 100 are arranged on both sides of the first column 10, and preferably two first support structures 100 are provided. The second support structures 110 are arranged on both sides of the second column 11, and preferably two second support structures 110 are provided. For the positional relationship between the first support structure 100 and the second support structure 110, in this embodiment, the second support structure 110 is arranged opposite to the first support structure 100 to ensure the symmetry and stability of the overall structure. In this embodiment, to enhance the stability of the overall structure, in addition to double-sided welding, stiffening plates or support rods can be provided at appropriate positions to further improve the seismic and compressive resistance of the first support structure 100 and the second support structure 110. Double-sided welding means welding is carried out simultaneously on both sides of the connection, thereby forming a stronger weld. Compared with single-sided welding, double-sided welding can better withstand tensile, compressive, and shear stresses, significantly improving the overall strength of the connection part.

[0033] Furthermore, the inclination angle α of the third support structure 12 with respect to the load-bearing structure 1 is 30 - 60 degrees, and the inclination angle α of the fourth support structure 13 with respect to the load-bearing structure 1 is 30 - 60 degrees. Specifically, as Figure 1 and Figure 6 shown, the inclination angle α of the third support structure 12 with respect to the load-bearing structure 1 is 45 degrees, and the inclination angle α of the fourth support structure 12 with respect to the load-bearing structure 1 is 45 degrees. The design of the inclination angle α helps to disperse the force applied to the support structure and improve the overall stability. The 45-degree inclination angle can effectively disperse and transfer the load, making the force applied to the support structure more evenly distributed. Specifically, when the 45-degree inclination angle disperses the force in the vertical and horizontal directions, it can form an ideal triangular force distribution, and this way of force dispersion is considered the most stable and efficient in structural mechanics. In this embodiment, the length F of the third support structure 12 and the fourth support structure 13 is preferably 413 mm, and the third support structure 12 and the fourth support structure 13 are preferably made of 25a I-beam diagonal rod materials. In this utility model, 25a I-beams are selected throughout. The standardized shape and size make construction and installation more convenient, ensuring construction quality and efficiency. The material design takes into account repeated use, is easy to maintain and service, has an extremely low loss rate, a high turnover rate, and can be reused multiple times.

[0034] Furthermore, the third support structure 12 is an I-shaped cross-section member, and the fourth support structure 13 is an I-shaped cross-section member. The third support structure 12 is connected to the load-bearing structure 1 and the first column 10 by double-sided full penetration welding. The fourth support structure 13 is connected to the load-bearing structure 1 and the second column 11 by double-sided full penetration welding. Specifically, the third support structure 12 and the fourth support structure 13 adopt I-shaped cross-section members. The material design takes into account repeated use, easy maintenance and low loss rate, high turnover rate, and can be used multiple times. The double-sided full penetration welding technology ensures the continuity and strength of the weld, avoids welding defects, and improves the overall strength and durability of the connection part.

[0035] Furthermore, the base 2 is an I-shaped cross-section member, and the flange part of the base 2 is welded to the first column 10 and the second column 11. Specifically, as Figure 1 shown, from Figure 1 the perspective, the base 2 is in the shape of "I". Combining Figure 4 with the top view schematic diagram, the first column 10 and the second column 11 are welded and fixed to the upper flange part on the center line of the base 2.

[0036] Furthermore, a detachable pulley 20 is provided on the base 2. Specifically, as Figure 1 and Figure 2 shown, the pulley 20 is installed on the base 2 and can rotate freely to facilitate the movement and adjustment of the position of the support and lifting frame. The installation method of the pulley 20 is a detachable design, which is convenient for flexible use in different construction environments, reduces the transfer time, speeds up the construction progress, and saves the construction period.

[0037] Furthermore, a hook-shaped structure 40 for lifting and fixing is provided on the lifting mechanism 4.

[0038] Specifically, as Figure 1 shown, the hook-shaped structure 40 is made of high-strength alloy steel or other high-strength wear-resistant materials to ensure that the lifting mechanism can withstand large loads during the lifting and fixing process. In this embodiment, the hook-shaped structure 40 is designed in a shape that is convenient for hooking and fixing. The size of the hook is designed according to specific usage requirements to ensure that objects of different sizes can be fixed. The opening size of the hook part of the hook-shaped structure 40 should be designed appropriately to facilitate hooking and fixing objects and prevent objects from falling off. The lifting mechanism 4 is operated by an electric or manual device, and can conveniently lift and lower the hook-shaped structure 40 and the objects fixed thereto. In this embodiment, it is embodied as: combining with the attached Figure 2, when used in conjunction with the forklift 5, two hoisting steel chains pass through the hoisting holes and are fixed at the lifting mechanism 4. The hook-shaped structure 40 is used to fix the steel chains to ensure that they do not slip during the lifting process. After cutting is completed, the lifting operation is carried out through the lifting mechanism 4. The hook-shaped structure 40 bears the weight of the sealing plate and is lifted to a height of about 30 cm above the ground. Preferably, safety devices such as safety locks and load sensors can also be used to ensure the safety of the lifting and fixing processes, prevent accidental detachment and overloading operations. For example, a safety lock is designed on the hook-shaped structure 40 to prevent the object from accidentally detaching during the lifting and fixing processes, and a load sensor is installed on the lifting mechanism 4 to monitor the load during the lifting process in real time to ensure operation within the safe load range.

[0039] The embodiment of the present utility model can achieve the best technical effect when used in conjunction with the forklift 5. The detailed process of the combined use is described as follows: First, four holes are drilled with a water drill inside the sealing plate to be cut. As Figure 4 shown, the size of the sealing plate 3 in this embodiment is E1*E2, that is, 2400 mm * 2400 mm. A steel chain is passed through between every two holes, which can facilitate the lifting of the sealing plate. Then, holes are drilled at the four corners of the sealing plate, and these holes are used to pass the cutting ropes to ensure that the sealing plate does not move during cutting. Next, the present utility model is erected on both sides of the sealing plate 3. The present utility model helps to stabilize the sealing plate 3, fixes the two steel chains on the hook-shaped structure 40 of the lifting mechanism 4, and ensures that the steel chains can firmly lift the sealing plate 3. Then, the cutting process is started, and the cutting equipment is used to cut along the predetermined cutting line. During the cutting process, the connection relationship between the lifting mechanism 4 and the steel chain will keep the sealing plate 3 stable. After cutting is completed, the lifting mechanism 4 is used to lift the sealing plate 3 to a height of about 30 cm above the ground. The purpose of this is to facilitate the subsequent operation of the forklift 5. After lifting to the appropriate height, the forklift 5 carefully forks the sealing plate from the lifting frame, then transports it away from the hole. Finally, the sealing plate transported away from the hole is lifted by a truck crane and loaded onto the transport vehicle to complete the transportation work of the sealing plate.

[0040] The present utility model does not directly use a truck crane to lift the sealing plate for cutting. Instead, by designing a support lifting frame suitable for opening holes in the sealing plate, through the combined connection relationship of the load-bearing structure, the base, the lifting mechanism, the first column, the second column and multiple support structures, a stable support effect can be provided during the cutting process, ensuring stability during the lifting of the sealing plate, reducing construction risks caused by unstable structures, and ensuring the safety of personnel; avoiding the truck crane bearing a large instantaneous load during the cutting process and at the moment when cutting is finally completed, resulting in the instability of the crane and causing serious consequences.

[0041] It should be understood that in the present utility model, terms such as "first" and "second" are used to describe various information, but such information should not be limited to these terms, and these terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the present utility model, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information. In addition, the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0042] The above is the preferred embodiment of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications are also regarded as the protection scope of the present utility model.

Claims

1. A support and lifting frame suitable for sealing plate opening, characterized in that: The invention comprises a load-bearing structure (1) and a base (2); the load-bearing structure (1) is further provided with a lifting mechanism (4) for lifting a sealing plate (3); the two ends of the load-bearing structure (1) are respectively connected to a first column (10) and a second column (11); the lower end of the first column (10) is connected to the base (2); the lower end of the second column (11) is connected to the base (2); first supporting structures (100) are obliquely arranged on both sides of the first column (10); and second supporting structures (110) are obliquely arranged on both sides of the second column (11). 0), the first supporting structure (100) is used to connect the first column (10) and the base (2), the second supporting structure (110) is used to connect the second column (11) and the base (2), and a third supporting structure (12) and a fourth supporting structure (13) are respectively arranged obliquely at the lower part of both sides of the load-bearing structure (1), the third supporting structure (12) is used to connect the load-bearing structure (1) and the first column (10), and the fourth supporting structure (13) is used to connect the load-bearing structure (1) and the second column (11).

2. A support and lifting frame suitable for sealing plate opening according to claim 1, characterized in that: The load-bearing structure (1) is an I-section member, the first column (10) and the second column (11) are I-section members, and the flange portion of the load-bearing structure (1) is welded to the first column (10) and the second column (11).

3. A support and lifting frame suitable for sealing plate opening according to claim 2, characterized in that: The lifting mechanism (4) is arranged at the center position of the load-bearing structure (1).

4. A support and lifting frame suitable for sealing plate opening according to claim 3, characterized in that: The inclination angle β of the first support structure (100) is 45-85 degrees relative to the horizontal line, and the inclination angle β of the second support structure (110) is 45-85 degrees relative to the horizontal line.

5. A support and lifting frame suitable for sealing plate opening according to claim 4, characterized in that: At least two of the first support structures (100) are provided, and at least two of the second support structures (110) are provided; the first support structures (100) are connected to the base (2) and the first column (10) by double-sided welding, and the second support structures (110) are connected to the base (2) and the second column (11) by double-sided welding.

6. A support and lifting frame suitable for sealing plate opening according to claim 5, characterized in that: The third supporting structure (12) has an inclination angle α of 30-60 degrees relative to the load-bearing structure (1), and the fourth supporting structure (13) has an inclination angle α of 30-60 degrees relative to the load-bearing structure (1).

7. A support and lifting frame suitable for sealing plate opening according to claim 6, characterized in that: The third support structure (12) is an I-section member, the fourth support structure (13) is an I-section member, the third support structure (12) is connected to the load-bearing structure (1) and the first column (10) by double-sided full welding, and the fourth support structure (13) is connected to the load-bearing structure (1) and the second column (11) by double-sided full welding.

8. A support and lifting frame suitable for sealing plate opening according to claim 7, characterized in that: The base (2) is an I-section member, and the flange portion of the base (2) is welded to the first column (10) and the second column (11).

9. A support and lifting frame suitable for sealing plate opening according to claim 1, characterized in that: The base (2) is also provided with a detachable pulley (20).

10. A support and lifting frame suitable for sealing plate opening according to claim 1, characterized in that: The lifting mechanism (4) is provided with a hook-shaped structure (40) for lifting and fixing.

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