Reserved hole foundation bolt fixing device and fixing method

Abstract

The invention discloses a preformed hole foundation bolt fixing device which comprises a clamping ring, and the clamping ring is clamped between a foundation bolt and an equipment foundation bolt hole and comprises a supporting part, a connecting part and a handheld part. The supporting part is in an open ring shape, is arranged on the outer side of a foundation bolt in a sleeving mode and is arranged between an equipment foundation bolt hole and the foundation bolt. One part of the non-endpoint part of the supporting part is bent upwards to form a connecting part; the connecting part is outwards connected with a handheld part parallel to the supporting part; and the handheld part extends out of the equipment foundation bolt hole and is arranged below the flat gasket. The supporting part wraps the whole foundation bolt, so that the whole device is fixed more stably; in addition, the iron-wire-free end is arranged on the handheld part, so that hands are not prone to being scratched in the using process.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment installation, and relates to a fixing device and a fixing method for anchor bolts in reserved holes. Background Art

[0002] During the equipment installation process, the anchor bolts of many equipment are designed to use the secondary grouting embedding method in reserved holes. The steps of such a method are usually: rough adjustment of the equipment, primary grouting of the anchor bolts in the reserved holes, fine adjustment of the equipment, and secondary grouting to complete the equipment installation.

[0003] However, during the first grouting of the anchor bolts in the reserved holes, the anchor bolts are prone to displacement under the impact of the grouting material. Sometimes, the phenomenon of the anchor bolts fitting with the inner wall of the equipment anchor bolt holes occurs, leaving no margin for the fine adjustment of the equipment and bringing great inconvenience to the fine adjustment of the equipment. For this problem, on-site, the equipment anchor bolt holes are usually enlarged by gas cutting, and then pressing plates are added after cutting the holes to ensure the installation accuracy and quality of the equipment. However, this method reduces the construction efficiency and has an adverse impact on the overall structural strength.

[0004] In this regard, the patent with the application number (202110991853.6) discloses a bolt positioning method for preventing the bolts from fitting with the bolt hole walls, including the following steps: manufacturing a bolt positioning collar, the lower end of the bolt positioning collar being an arc-shaped clamp, and both ends of the arc-shaped clamp being connected with an inverted L-shaped leg; symmetrically placing the bolt positioning collar along the bolt rod after the preliminary leveling and alignment of the equipment, installing the bolt and nut; performing the primary grouting pouring in the foundation bolt holes; removing the bolt positioning collar after the primary grouting reaches a certain strength; and performing secondary leveling and alignment on the equipment and then secondary grouting.

[0005] However, in the above method, when installing the collar, it is necessary to hold the end of the iron wire. The end of the iron wire is relatively sharp and is easy to scratch the hand; in addition, multiple collars are required to cooperate for use, and two identical collars need to be manufactured, and it is difficult to make collars that can match.

[0006] Therefore, there is an urgent need for an anchor bolt fixing device that is more stable in fixing, safer during use, and not easy to scratch the hand. Summary of the Invention

[0007] Due to the above-mentioned defects in the prior art, the present invention provides a fixing device for anchor bolts in reserved holes. Through the annular structure of the present application, an annular supporting part is arranged between the anchor bolt and the equipment anchor bolt hole. The cooperation of the supporting part and the connecting part can limit the movement of the bolt in all directions of the anchor bolt. The supporting part wraps the entire anchor bolt to make the whole device more stable in fixing; only one collar can complete the fixing of the bolt; in addition, the present invention has no iron wire head at the handheld part, so it is not easy to scratch the fingers during use.

[0008] To achieve the above-mentioned purpose, the present invention provides a pre-hole anchor bolt fixing device, comprising a flat washer and a nut;

[0009] The anchor bolt is fixed in the equipment anchor bolt hole through the flat washer and the nut; and further comprises: a snap ring;

[0010] The clamping ring is clamped between the anchor bolt and the equipment anchor bolt hole, and comprises a supporting part, a connecting part and a hand-held part;

[0011] The support part is an open ring, which is sleeved on the outside of the anchor bolt and arranged between the equipment anchor bolt hole and the anchor bolt;

[0012] A portion of the support portion at a non-end point is bent upward to form the connecting portion; the connecting portion is connected outwardly to the hand-held portion parallel to the support portion; there are two connecting portions, from which two hand-held portions are extended.

[0013] The handheld part extends out of the equipment anchor bolt hole and is arranged under the flat gasket.

[0014] By adopting the above technical scheme, the bolt is supported from all directions through the annular supporting part, which is more stable and not easy to be disturbed; compared with the use of multiple retaining rings in the prior art, this scheme only uses one retaining ring, which is more convenient to use and not easy to lose; and there is no end point on the hand-held part, so it is not easy for the fingers to be scratched by the end during the installation process; the operator can hold the two hand-held parts and pry them apart to expand the opening of the supporting part, so that the anchor bolt can pass through the opening, thereby facilitating the installation of the anchor bolt.

[0015] In some embodiments, the clamping ring is formed by bending an iron wire, and the supporting portion is formed by bending the iron wire into an open ring;

[0016] There are two connecting parts, which are symmetrically arranged along the center of the supporting part. After the connecting parts extend out of the equipment anchor bolt holes, they are transversely bent and extended to form the hand-held part, and the hand-held part is U-shaped.

[0017] In this way, the clamp is made of an iron wire, which is easy to obtain and manufacture. When the staff expands the opening through the hand-held part, the U-shaped design prevents the end of the iron wire from contacting the hand and preventing the hand from being scratched, and the bent part has a larger area, which is more convenient to hold. In addition, the hand-held part can be held and the support part can be moved on the water surface to adjust the size of the support part so that it can adapt to the size of the anchor bolt.

[0018] The two end points of the support portion are staggered up and down and have an overlapping area.

[0019] With such a setting, when the iron wire is long, trimming is not required, making it more convenient during production.

[0020] In some embodiments, the arc of the support part is set according to the diameter of the equipment anchor bolt hole and the anchor bolt, and the diameter of the iron wire of the support part is less than half of the difference between the diameter of the equipment anchor bolt hole and the anchor bolt.

[0021] With such a setting, the support part can be accommodated between the anchor bolt and the equipment installation hole.

[0022] In some embodiments, the length of the connecting part is half of the thickness of the equipment bottom plate, and the support part is located at the center position of the equipment bottom plate.

[0023] In a second aspect, the present application also discloses a fixing method for a pre - reserved hole anchor bolt, using the above - mentioned pre - reserved hole anchor bolt fixing device; wherein, the using steps are as follows:

[0024] S1: Select a suitable iron wire according to the diameter of the equipment anchor bolt hole and the anchor bolt;

[0025] S2: Bend the iron wire to form the snap ring;

[0026] S3: Hold the holding part and open the snap ring from the opening of the support part, and then set it on the equipment anchor bolt hole;

[0027] S4: Hold the holding part and adjust it back and forth to change the size of the circle formed by the support part to match the anchor bolt;

[0028] S4: Place a flat washer on the snap ring, install a nut on the flat washer, and tighten the nut to fix the anchor bolt.

[0029] Generally speaking, the annular snap ring of this solution can support the anchor bolt from all directions, and this solution is formed by bending a single iron wire, making it more convenient to use; moreover, the handheld part does not have an iron wire end, so it is not easy to scratch the fingers of the staff during operation, making it more convenient and safe to use. In addition, this solution only needs to set one snap ring to fix the anchor bolt, which is more convenient and time - saving. Brief Description of the Drawings

[0030] By reading the detailed description of the non - restrictive embodiments with reference to the following drawings, the present invention and its features, appearance, and advantages will become more obvious. The same reference numerals indicate the same parts in all the drawings. The drawings are not drawn to scale, and the emphasis is on showing the gist of the present invention.

[0031] Figure 1 It is a schematic diagram of fixing the equipment anchor bolt hole with a snap ring in the prior art;

[0032] Figure 2 It is a perspective view of the snap ring in the embodiment of the present invention;

[0033] Figure 3 It is a top view of the snap ring in the embodiment of the present invention;

[0034] Figure 4 It is a side view of the snap ring in the embodiment of the present invention;

[0035] Figure 5 It is a front view of the pre - reserved hole anchor bolt fixing device in the embodiment of the present invention;

[0036] Figure 6 It is a corresponding table of iron wire gauge number and diameter.

[0037] Explanation of reference numerals:

[0038] 1. Equipment bottom plate; 11. Equipment anchor bolt hole; 2. Anchor bolt; 3. Flat gasket; 4. Nut; 5. Snap ring; 51. Support part; 52. Connection part; 53. Holding part; 6. Anchor bolt pre - reserved hole. Detailed implementation manners

[0039] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "vertical", "horizontal", "inner", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application 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 cannot be understood as a limitation to the present application. In addition, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0041] To make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0042] Embodiment

[0043] See Figure 2-3 , this embodiment provides a reserved hole anchor bolt fixing device, including a flat washer 3 and a nut 4;

[0044] The anchor bolt 2 is fixed in the equipment anchor bolt hole 11 through the flat washer 3 and the nut 4;

[0045] During the installation of precision equipment, workers generally use clips for auxiliary fixation. First, the anchor bolt 2 is fixed in the equipment anchor bolt hole 11 on the equipment bottom plate 1, and then the flat washer 3 and the nut 4 are placed on the anchor bolt 2. Whether the clip fixes the anchor bolt 2 firmly depends on the way the clip supports the anchor bolt 2. See Figure 1 , in the prior art, the snap ring is generally arc-shaped, and one snap ring can only cover a small part of the bolt. Generally, 2-3 clips are needed to better complete the fixation of the anchor bolt 2, and the clips are used in combination. When manufacturing the clips, matching is required, resulting in greater manufacturing difficulty. Secondly, when installing the snap ring, the worker holds the end of the snap ring for installation, and the end of the snap ring is easy to scratch the finger. On the other hand, as Figure 1 shown, in the prior art, although there are two clips that respectively clamp the anchor bolt 2 on both sides, there is still a large gap in the up and down direction of the anchor bolt 2. During the grouting process, the anchor bolt 2 is prone to displacement towards the gap, resulting in the clip losing its fixing function. To solve this problem, only more clips can be set to minimize the gap between the clips, but this method is time-consuming and laborious. When removing the clips, they also need to be removed one by one, seriously affecting the construction efficiency.

[0046] See Figure 2-5 , this embodiment provides a snap ring 5, including a support part 51, a handheld part 53 and a connecting part 52. The support part 51 is an open ring, which is arranged between the equipment anchor bolt hole 11 and the anchor bolt 2 and surrounds the anchor bolt 2;

[0047] A part of the support part 51 at a non-endpoint bends upward to form the connecting part 52; the connecting part 52 is connected to the handheld part 53 parallel to the support part 51 on the outside;

[0048] Specifically, the length of the connecting part 52 is half of the thickness of the equipment bottom plate 1, and the support part 51 is located at the center position of the equipment bottom plate 1.

[0049] The handheld part 53 extends out of the equipment anchor bolt hole 11 and is arranged under the flat washer 3.

[0050] In this embodiment, the anchor bolt can be supported in an encircling manner through the annular support portion 51, and the supporting ability is stronger. In addition, there is only one clip in this application, which is more convenient to use. Since the hand-held portion does not have an end in this solution, it is not easy to scratch the fingers during the adjustment and installation process, which is safer.

[0051] Specifically, in this embodiment, the clamping ring 5 is formed by bending an iron wire.

[0052] The thickness of the iron wire is determined according to the size of the anchor bolt 2 and the equipment anchor bolt hole 11 . Specifically, the diameter of the iron wire is slightly smaller than half of the difference between the diameters of the equipment anchor bolt hole 11 and the anchor bolt 2 .

[0053] See also Figure 6 , select the appropriate iron wire according to the corresponding table of iron wire number and diameter.

[0054] Specifically, the support portion 51 is formed by bending an iron wire into a ring shape, and the support portion 51 is formed by bending an iron wire into an open ring shape; there are two connecting portions 52, which are symmetrically arranged along the center of the support portion 51. After the connecting portion 52 extends out of the equipment anchor bolt hole 11, it is bent horizontally and extended to form a hand-held portion 53, and the hand-held portion 53 is U-shaped.

[0055] When the gasket is placed on the clip, the two connecting parts can be squeezed at the same time, so that the entire clip can be stably fixed. When the hand-held part 53 is held and moved back and forth on a horizontal plane, the size of the support part 51 can be adjusted, so that the clip can adapt to anchor bolts of various sizes. In addition, since the end of the iron wire is located at the support part 51, the hand-held part 53 does not need to be held, so it is not easy to scratch the fingers during adjustment.

[0056] Preferably, the two end points of the support portion 51 are staggered up and down and have an overlapping area. In some embodiments, the two end points and the support portion 51 are in the same plane, and a small opening is left between the two end points.

[0057] When fixing the anchor bolts with reserved holes, first hoist the equipment into place according to the installation position in the drawing. While hoisting into place, install the anchor bolts 2 in the anchor bolt holes 11 of the equipment base plate 1. Then, make rough adjustments according to the technical requirements of the drawing. After the rough adjustments are completed, install the clamp ring 5 again (see Figure 4 ) Then, grouting is performed once in the reserved hole 6 for the anchor bolt. When the grouting material reaches the specified strength, the retaining ring 5 is removed and the equipment is finely adjusted. Specifically, by adjusting the position of the equipment base plate 1, the position of the equipment is fine-tuned and the anchor bolt 2 is tightened. After the torque and adjustment accuracy of the anchor bolt 2 meet the technical requirements for equipment installation and acceptance is completed, a second grouting is performed.

[0058] The usage method of the snap ring is as follows: S1: Select an appropriate iron wire according to the diameters of the equipment anchor bolt holes 11 and the anchor bolts 2; S2: Bend the iron wire to form a snap ring 5; S3: Hold the holding part 53 to open the snap ring from the opening of the supporting part 51, and sleeved it on the equipment anchor bolt hole 11; S4: Hold the holding part 53 and adjust it back and forth to change the size of the circle formed by the supporting part 51 to match the anchor bolt 2, and between it and the anchor bolt 2; S4: Place a flat washer 3 on the snap ring 5, and install a nut 4 on the flat washer 3, and tighten the nut to fix the anchor bolt 2.

[0059] Those skilled in the art should understand that those skilled in the art can implement variations in combination with the prior art and the above embodiments, which will not be elaborated here. Such variations do not affect the essence of the present invention and will not be elaborated here. The preferred embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the above specific implementation manners, and the equipment and structures not described in detail should be understood to be implemented in a common manner in the art; any person skilled in the art, without departing from the scope of the technical solution of the present invention, can make many possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above, or modify it into equivalent embodiments with equivalent changes, which do not affect the essence of the present invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the protection of the technical solution of the present invention.

Claims

1. A pre-hole anchor bolt fixing device, comprising a flat washer (3) and a nut (4); The anchor bolt (2) is fixed in the equipment anchor bolt hole (11) via the flat washer (3) and the nut (4); It is characterized in that Also includes: Snap ring (5); The clamping ring (5) is clamped between the anchor bolt (2) and the equipment anchor bolt hole (11), and comprises a supporting portion (51), a connecting portion (52) and a hand-held portion (53); The support portion (51) is an open ring, which is sleeved on the outside of the anchor bolt (2) and is arranged between the equipment anchor bolt hole (11) and the anchor bolt (2); A portion of the support portion (51) at a non-end point is bent upward to form the connecting portion (52); the connecting portion (52) is connected outwardly to the hand-held portion (53) parallel to the support portion (51); the connecting portion (52) has two locations, which are symmetrically arranged along the center of the support portion (51); after the connecting portion (52) extends out of the equipment anchor bolt hole (11), it is laterally bent and extended to form the hand-held portion (53); The hand-held portion (53) extends out of the equipment anchor bolt hole (11) and is arranged under the flat gasket (3).

2. A pre-hole anchor bolt fixing device according to claim 1, characterized in that: The clamping ring (5) is formed by bending an iron wire, and the supporting portion (51) is formed by bending the iron wire into an open ring shape; the hand-held portion (53) is U-shaped.

3. A pre-hole anchor bolt fixing device according to claim 2, characterized in that: The two end points of the support portion (51) are staggered up and down and have an overlapping area.

4. The anchor bolt fixing device with a reserved hole according to claim 1, characterized in that: The arc of the support portion (51) is set according to the diameters of the equipment anchor bolt hole (11) and the anchor bolt (2), and the diameter of the iron wire of the support portion (51) is less than half of the difference between the diameters of the equipment anchor bolt hole (11) and the anchor bolt (2).

5. The anchor bolt fixing device with a reserved hole according to claim 1, characterized in that: The length of the connecting portion (52) is half the thickness of the device bottom plate (1), and the supporting portion (51) is located at the center of the device bottom plate (1).

6. A method for fixing a pre-hole anchor bolt, characterized in that: Using a pre-hole anchor bolt fixing device as claimed in any one of claims 1 to 5, the steps include: S1: Selecting a suitable iron wire according to the diameter of the equipment foundation bolt hole (11) and the foundation bolt (2); S2: bending the iron wire to form the clamping ring (5); S3: holding the hand-held portion (53) to open the clamping ring from the opening of the support portion (51), and sleeve it on the equipment anchor bolt hole (11); S4: holding the hand-held portion (53) and adjusting it forward and backward to change the size of the circle formed by the support portion (51) so that it matches the anchor bolt (2) and the anchor bolt (2); S4: placing a flat gasket (3) on the clamping ring (5), installing a nut (4) on the flat gasket (3), and tightening the nut to fix the anchor bolt (2).

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