Fixing pressing piece for unilateral bolt fastening and construction method for unilateral bolt fastening

Abstract

The invention relates to a fixing pressing piece for unilateral bolt fastening and a construction method for unilateral bolt fastening, the fixing pressing piece is used for being temporarily fixed with a bolt when the bolt is used for fixing a repairing part and a component to be repaired, the fixing pressing piece comprises an elastic piece, and the elastic piece is provided with a first end and a second end. The first end and the second end are detachably and fixedly connected. According to the fixing pressing piece, the elastic piece and the pressing piece component are arranged to simulate a nut, a bolt can be screwed in, the bolt is temporarily fixed to a repairing component, the bolt is effectively prevented from falling off, the bolt can be aligned to a first through hole in a component to be repaired, after the bolt penetrates through the first through hole, the bolt is pre-fixed by screwing in a real nut, and the repairing efficiency is improved. The bolt and the repairing part are temporarily fixed, then after the fixing pressing piece is removed, the real nut is completely tightened, relay fixing of the bolt is achieved, and single-side construction of hole repairing is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of construction tools, and particularly relates to a fixing pressing piece for one-sided bolt fastening and a construction method for one-sided bolt fastening. Background Art

[0002] In some special construction environments, bolts can only be constructed from one side. For example, Figure 3 As shown, a certain component has a hole due to construction requirements and needs to be repaired after construction. However, only one side of the component to be repaired is provided with a construction scaffold for construction (for example, in an indirect cooling tower with a built-in skin, its steel skeleton is external, and only external construction can be carried out during skin repair). It is necessary to move the repair part to the side far from the construction scaffold, and then fixedly connect the repair part and the component to be repaired through bolts and nuts, thus completing the repair.

[0003] Under this kind of repair requirement, there are the following problems in the fixation of bolts: If the bolt penetrates into the repair part from the component to be repaired and then screws the nut into the distal end of the repair part, it is difficult to operate the nut due to the inability to construct at the distal end of the repair part; If the bolt penetrates into the component to be repaired from the repair part, the nut can be screwed in on the side of the construction scaffold, but the bolt must first penetrate into the repair part, and then after moving the repair part to the side far from the construction scaffold, align the bolt with the bolt hole on the component to be repaired. During this process, the bolt is not fixed by the nut and is extremely easy to fall off from the repair part. Therefore, it is urgent to solve the connection problem of bolts in one-sided repair construction. Summary of the Invention

[0004] The purpose of the present invention is to provide a fixing pressing piece for one-sided bolt fastening and a construction method for one-sided bolt fastening to solve the above problems.

[0005] The present invention realizes the above purpose through the following technical solutions:

[0006] A fixing pressing piece for one-sided bolt fastening is used for temporarily fixing with a bolt when using the bolt to fix a repair part and a component to be repaired, and includes an elastic piece. The elastic piece has a first end and a second end, and the first end and the second end are detachably fixedly connected to make the elastic piece in a ring shape. A plurality of pressing members are arranged on the surface of the elastic piece and extend towards the inner side of the ring shape. The elastic piece and the pressing members are used to simulate the thread engagement between the nut and the bolt, so that the bolt is temporarily fixed with the repair part.

[0007] As a further optimized solution of the present invention, a fixing hole is provided on the first end, and a bending member is provided on the second end. The bending member is used to hook into the fixing hole to fix the elastic sheet into a ring shape. This solution further proposes a detachable fixing method for the bending member and the fixing hole. By hooking the bending member into the fixing hole to achieve the purpose of detachable fixing. When disassembling, simply press the bending member to make it leave the fixing hole.

[0008] As a further optimized solution of the present invention, the pressing sheet member is slidably arranged on the elastic sheet, and there are at least two fixing points on the first end and the second end. By setting multiple fixing points in this solution, the elastic sheet can be wound into rings with different diameters, so as to facilitate the use of bolts with different outer diameters. Correspondingly, in order to avoid the pressing sheet members gathering too much before and after adjustment, a sliding pressing sheet member is provided in this solution.

[0009] As a further optimized solution of the present invention, the pressing sheet member includes a pressing sheet body and a sliding member. The sliding member is in a J shape and buckles on the elastic sheet, and limiting protrusions for limiting the sliding member are provided on the first end and the second end. This solution further sets the specific structure of the pressing sheet member, realizes the purpose of sliding along the elastic sheet through the sliding member, and prevents the sliding member from falling off by setting the limiting protrusions.

[0010] As a further optimized solution of the present invention, a limiting portion for cooperating with and limiting the sliding member is provided on the pressing sheet body to prevent the sliding member from falling off due to deformation.

[0011] As a further optimized solution of the present invention, arc-shaped magnets are provided on the sides of the sliding members away from the elastic sheet, and the mutually facing magnetic poles between adjacent arc-shaped magnets are the same. An arc-shaped ejector rod is provided at the end of the first end for pushing the sliding member on the second end. Through the like-pole repulsion between the magnets in this solution, the sliding members are distributed as evenly as possible to prevent excessive aggregation. When fixing at different points on the second end and the first end, the sliding member on the second end is pushed forward by the ejector rod so that the sliding member squeezes other sliding members through the repulsion of the arc-shaped magnets.

[0012] In order to implement the above fixed pressing sheet, the present invention also proposes a construction method for the fixed pressing sheet based on any one of the above single-sided bolt fastening, including the following steps:

[0013] S1: Obtain the hole size and shape on the component to be repaired, cut a repair part larger than the hole size, open a first through hole around the hole on the component to be repaired, and open a second through hole at the edge of the repair part;

[0014] S2: Pass the bolt through the second through hole on the repair part, and use the fixed pressing sheet to simulate a nut to temporarily fix the bolt on the repair part;

[0015] S3: Pass the repair part through the hole to the side away from the construction scaffold, then orient the bolt body of the bolt towards the first through-hole, and translate the repair part so that the bolt body enters the first through-hole and extends out.

[0016] S4: Use a nut to screw onto the bolt body extending out of the first through-hole, then disassemble the fixing washer, and further screw the nut tightly to complete the repair.

[0017] As a further optimized solution of the present invention, the process of simulating a nut by the fixing washer in step S2 is specifically as follows: Fix the first end and the second end, the elastic piece surrounds the bolt body, the pressing piece member enters between the threads of the bolt body, and rotate the fixing washer to a position close to the nut.

[0018] The beneficial effects of the present invention are as follows:

[0019] By providing an elastic piece and a pressing piece member to simulate a nut, the present invention can screw onto the bolt to temporarily fix the bolt on the repair part, effectively preventing the bolt from falling, so as to facilitate aligning the bolt with the first through-hole on the component to be repaired. After the bolt passes through the first through-hole, pre-fix it by screwing in a real nut, so that the bolt is temporarily fixed to the repair part. Then, after removing the fixing washer, fully tighten the real nut to achieve relay fixing of the bolt, realizing single-sided construction for repairing the hole. Description of the Drawings

[0020] Figure 1 is a schematic diagram of Embodiment 1 of the fixing washer of the present invention;

[0021] Figure 2 is a top view of Embodiment 1 of the fixing washer of the present invention;

[0022] Figure 3 is a first three-dimensional schematic diagram of the component to be repaired of the present invention;

[0023] Figure 4 is the Figure 3 cross-sectional view of;

[0024] Figure 5 is a second three-dimensional schematic diagram of the component to be repaired of the present invention;

[0025] Figure 6 is the Figure 4 enlarged view of part A in;

[0026] Figure 7 is a schematic diagram of Embodiment 2 of the fixing washer of the present invention;

[0027] Figure 8 is the Figure 7 schematic diagram after removing the arc magnet in;

[0028] In the figure: 1. Elastic sheet; 11. First end; 12. Fixing hole; 13; Second end; 14. Bending member; 15. Thrust rod; 16. Limit projection; 2. Pressing member; 21. Pressing body; 22. Sliding member; 23. Arc magnet; 24. Limiting part; 3. Component to be repaired; 31. Hole; 32. First through hole; 33. Construction frame; 4. Repair part; 41. Second through hole; 5. Bolt; 51. Nut; 52. Bolt body; 53. Thread. Detailed implementation mode

[0029] The present application will be further described in detail below with reference to the accompanying drawings. It is necessary to point out here that the following specific implementation modes are only used to further illustrate the present application and cannot be understood as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0030] Embodiment 1

[0031] As Figures 1-6 shown, a fixing pressing sheet for unilateral bolt fastening is used to be temporarily fixed with a bolt when using the bolt to fix the repair part 4 and the component to be repaired 3. It includes an elastic sheet 1. The elastic sheet 1 has a first end 11 and a second end 13. The first end 11 and the second end 13 are detachably fixedly connected to make the elastic sheet 1 annular. A plurality of pressing members 2 are arranged on the surface of the elastic sheet 1 and extend towards the inner side of the ring. The elastic sheet 1 and the pressing members 2 are used to simulate the engagement of the nut and the thread 53 of the bolt 5, so that the bolt 5 is temporarily fixed with the repair part 4.

[0032] In this solution, by setting the elastic sheet 1 and the pressing members 2 to simulate a nut, the bolt 5 can be screwed in and temporarily fixed on the repair part 4, effectively preventing the bolt 5 from falling off, so that the bolt 5 can be aligned with the first through hole 32 on the component to be repaired 3. After the bolt 5 passes through the first through hole 32, it is pre-fixed by screwing in a real nut, so that the bolt 5 is temporarily fixed with the repair part 4. Then, after removing the fixing pressing sheet, the real nut is completely tightened to achieve the relay fixation of the bolt 5, realizing the unilateral construction of repairing the hole 31.

[0033] A fixing hole 12 is arranged on the first end 11, and a bending member 14 is arranged on the second end 13. The bending member 14 is used to hook into the fixing hole 12 to fix the elastic sheet 1 into a ring shape. This solution further proposes a detachable fixing method for the bending member 14 and the fixing hole 12. By hooking the bending member 14 into the fixing hole 12, the purpose of detachable fixation is achieved. When disassembling, just press the bending member 14 to make it leave the fixing hole 12.

[0034] To implement the above fixed pressing plate, the present invention also provides a construction method for the fixed pressing plate based on any one of the above unilateral bolt fastenings, including the following steps:

[0035] S1: Obtain the size and shape of the hole 31 on the component 3 to be repaired, cut a repair component 4 larger than the size of the hole 31, open a first through hole 32 around the hole 31 on the component 3 to be repaired, and open a second through hole 41 at the edge of the repair component 4. During this process, the first through hole 32 and the second through hole 41 need to be aligned. During this process, in order to reduce the alignment difficulty, the size of the through hole can be appropriately increased, and then the fixing problem caused by the larger through hole can be solved by adding gaskets;

[0036] S2: Insert the bolt 5 into the second through hole 41 on the repair component 4, and use the fixed pressing plate to simulate a nut to temporarily fix the bolt 5 on the repair component 4. Specifically, fix the first end 11 and the second end 13, the elastic piece 1 surrounds the bolt body 52, and the pressing member 2 enters between the threads 53 of the bolt body 52, and rotate the fixed pressing plate to a position close to the nut 51;

[0037] S3: Pass the repair component 4 through the hole 31 to the side away from the construction frame 33, and then the bolt body 52 of the bolt 5 faces the first through hole 32. Translate the repair component 4 so that the bolt body 52 enters the first through hole 32 and extends out. In this step, since the size of the repair component 4 is larger than the hole 31, a handle can be welded on the surface of the repair component 4 or a detachable handle can be provided to facilitate lifting the repair component 4 from the side with the construction frame 33 to the other side of the component 3 to be repaired. Welding a handle can also facilitate translating the repair component 4 to align the bolt body 52 with the first through hole 32;

[0038] S4: Screw a nut onto the bolt body 52 extending out of the first through hole 32, and then disassemble the fixed pressing plate, and further screw the nut completely tight, that is, the repair is completed. During this process, since a fixed pressing plate is sleeved at one end of the bolt body 52 close to the bolt cap 51 to act as a temporary nut, the real nut cannot be directly screwed tight. It is necessary to extend the bolt body 52 to the side with the construction frame 33 from the first through hole 32 and expose a small section, and then screw the real nut onto the exposed small section. After the real nut is screwed in, the bolt 5 and the repair component 4 can be pre-fixed. Before complete fixation, the "temporary nut" needs to be removed, the fixed pressing plate is disassembled, and after disassembly, the nut can be rotated continuously to completely fix the bolt 5.

[0039] It should be noted here that since the construction personnel can only rotate the nut on the side with the construction frame 33 and cannot limit the nut 51, the bolt 5 may rotate with the nut, resulting in the nut being unable to be tightened. In this case, the nut 51 can be limited by other methods in the prior art, including but not limited to the following methods: opening a hexagonal groove on the part to be repaired to limit the nut 51; opening an inner angle groove at the end of the bolt body 52 away from the nut 51, and directly limiting the rotation of the bolt body 52 from one side of the construction frame 33 through a corresponding tool.

[0040] Example 2

[0041] like Figures 7-8 As shown, on the basis of Example 1, in order to increase the ability of the elastic sheet 1 to adapt to bolts 5 of different radiuses, this embodiment further slides the pressure sheet member 2 on the elastic sheet 1, and there are at least two fixing holes 12. This solution sets a plurality of fixed points so that the elastic sheet 1 can be surrounded into a ring with different diameters, so that bolts 5 with different outer diameters can be used. Accordingly, in order to avoid excessive aggregation of the pressure sheet member 2 before and after adjustment, this solution sets a sliding pressure sheet member 2.

[0042] Specifically, the pressing member 2 includes a pressing member body 21 and a sliding member 22. The sliding member 22 is buckled on the elastic sheet 1 in a J-shape, and a limiting protrusion 16 for limiting the sliding member 22 is provided on the first end 11 and the second end 13. The sliding member 22 is used to slide along the elastic sheet 1, and the limiting protrusion 16 is provided to prevent the sliding member 22 from falling off.

[0043] The tablet body 21 is provided with a limiting portion 24 that cooperates with the sliding member 22 to limit the position, so as to prevent the sliding member 22 from falling off due to deformation.

[0044] Furthermore, in order to make the spacing between the sliding members 22 adaptive, an arc-shaped magnet 23 is provided on the side of the sliding member 22 away from the elastic sheet 1, and the magnetic poles facing each other between adjacent arc-shaped magnets 23 are the same. An arc-shaped push rod 15 is provided at the end of the first end 11 for pushing the sliding member 22 on the second end 13. This scheme uses the repulsion between the same poles of the magnets to make the sliding members 22 as evenly distributed as possible to prevent excessive aggregation. When the second end 13 is fixed at different points on the first end 11, the push rod 15 is used to push the sliding member 22 on the second end 13 forward so that the sliding member 22 squeezes other sliding members 22 through the repulsive force of the arc-shaped magnet 23. If the sliding member 22 is stuck on the elastic sheet 1 due to friction and cannot slide, it can be helped to slide by toggling, and finally dispersed more evenly under the action of the repulsive force, and has a good spacing adaptive function.

[0045] The above-described embodiments merely represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention.

Claims

1. A fixing pressing sheet for single-side bolt fastening, used for temporarily fixing with bolts when a repairing component (4) and a component to be repaired (3) are fixed with bolts, characterized in that: The invention comprises an elastic sheet (1), wherein the elastic sheet (1) has a first end (11) and a second end (13), wherein the first end (11) and the second end (13) are detachably fixedly connected so that the elastic sheet (1) is annular, and a plurality of pressing sheet components (2) are provided on the surface of the elastic sheet (1) extending toward the inner side of the annular shape, wherein the elastic sheet (1) and the pressing sheet components (2) are used to simulate the threaded engagement of a nut and a bolt, so that the bolt and a repair component (4) are temporarily fixed.

2. A fixing pressing sheet for single-side bolt fastening according to claim 1, characterized in that: The first end (11) is provided with a fixing hole (12), and the second end (13) is provided with a bending member (14), wherein the bending member (14) is used to hook into the fixing hole (12) so as to fix the elastic sheet (1) into a ring shape.

3. A fixing pressing sheet for single-side bolt fastening according to claim 1, characterized in that: The pressing sheet member (2) is slidably arranged on the elastic sheet (1), and the first end head (11) and the second end head (13) have at least two fixing points.

4. A fixing pressing sheet for single-side bolt fastening according to claim 3, characterized in that: The pressing member (2) comprises a pressing member body (21) and a sliding member (22); the sliding member (22) is buckled on the elastic sheet (1) in a J-shape, and the first end (11) and the second end (13) are provided with limiting protrusions (16) for limiting the sliding member (22).

5. A fixing pressing sheet for single-side bolt fastening according to claim 4, characterized in that: The tablet body (21) is provided with a limiting portion (24) that cooperates with the sliding component (22) to limit the position.

6. A fixing pressing plate for single-side bolt fastening according to claim 4, characterized in that: The sliding member (22) is provided with an arc-shaped magnet (23) on one side away from the elastic sheet (1), and the magnetic poles facing each other of adjacent arc-shaped magnets (23) are the same. The end of the first end (11) is provided with an arc-shaped push rod (15) for pushing the sliding member (22) on the second end (13).

7. A construction method for fixing a pressing plate by single-side bolt fastening according to any one of claims 1 to 6, characterized in that: The steps include: S1: obtaining the size and shape of the hole (31) on the component (3) to be repaired, cutting a repair component (4) larger than the size of the hole (31), opening a first through hole (32) around the hole (31) on the component (3) to be repaired, and opening a second through hole (41) at the edge of the repair component (4); S2: inserting the bolt (5) into the second through hole (41) on the repair component (4), and temporarily fixing the bolt (5) on the repair component (4) by simulating a nut through the fixing pressing sheet; S3: Pass the repair component (4) through the hole (31) to the side away from the construction frame (33), then the bolt body (52) of the bolt (5) faces the first through hole (32), and the repair component (4) is translated so that the bolt body (52) enters the first through hole (32) and extends out; S4: Use a nut to screw into the bolt body (52) extending out of the first through hole (32), then remove the fixing pressing plate, and further tighten the nut completely to complete the repair.

8. A construction method for single-side bolt fastening according to claim 7, characterized in that: The process of simulating a nut by means of the fixed pressing plate in step S2 is specifically as follows: fixing the first end (11) and the second end (13), the elastic sheet (1) surrounds the bolt body (52), the pressing plate component (2) enters between the threads (53) of the bolt body (52), and rotating the fixed pressing plate to a position close to the nut (51).

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