A T-bolt mounting device and method

Abstract

The application discloses a T-shaped anchor bolt mounting device and method, which comprises an anchor plate, a sleeve welded above the anchor plate for mounting a T-shaped anchor bolt, a stop and anti-sinking device welded below the anchor plate, and a sealing box welded below the anchor plate for isolating concrete; a rectangular through hole slightly larger than the T-shaped head of the T-shaped anchor bolt is formed on the anchor plate, so that the T-shaped head of the T-shaped anchor bolt can pass through the rectangular through hole at an angle coinciding with the rectangular through hole; the stop and anti-sinking device is a U-shaped round steel, and both ends of the U-shaped round steel are welded at the edges of two long sides of the rectangular through hole, so that the T-shaped head will be in contact with the U-shaped round steel after rotating a certain angle to pass through the rectangular through hole, thereby preventing the T-shaped head from continuing to rotate and preventing the T-shaped anchor bolt from sinking into the box bottom. The application has the advantages of simple structure, low manufacturing cost, convenient operation during hoisting and fixing, no need to hold the T-shaped anchor bolt by hand all the time, and good safety.

Description

Technical Field

[0001] This invention belongs to the field of equipment installation technology, and specifically relates to a T-type anchor bolt installation device. Background Technology

[0002] T-bolts are fasteners used to securely connect machinery or equipment to a foundation, preventing displacement and overturning during operation. They are commonly used to fix heavy machinery subjected to strong vibrations and impacts during operation. In the pre-embedding of T-bolts, a sleeve for positioning the bolt is typically pre-embedded. An anchor plate is installed at the bottom of the sleeve, with a rectangular through hole. The length of the through hole is greater than the length of the T-bolt head, and the width is less than the length of the T-bolt head. A sealing chamber is also welded below the anchor plate. However, because T-bolts withstand significant torque when mated with a nut, the bolt head exerts a large force on the anti-torsion block, which may cause the anti-torsion block to shift or fall off the anchor plate.

[0003] To secure T-bolts and prevent them from detaching from the anchor plate, the common practice is to weld two stop blocks at specific positions on both sides of the rectangular through-hole at the bottom of the anchor plate. These blocks limit and stop the T-shaped head of the anchor bolt. However, this method has several drawbacks. First, the stop blocks require precise positioning, necessitating specialized training for workers and resulting in low efficiency. In actual installation, deviations in angle or position can easily lead to loose contact between the T-bolt and the stop blocks, causing the bolt to slip and detach from the rectangular through-hole. Second, because this type of embedded box lacks an anti-sinking design, each bolt must be manually lifted during installation to prevent it from falling into the sealed box. This manual lifting is only possible after the equipment is in place and the nuts are tightened, making installation inconvenient and posing safety hazards during hoisting. Summary of the Invention

[0004] The main objective of this invention is to provide a T-type anchor bolt installation device and method to solve the problems existing in the prior art.

[0005] This invention is implemented as follows:

[0006] The present invention provides a T-type anchor bolt installation device, including an anchor plate, a sleeve welded above the anchor plate for installing T-type anchor bolts, a stop and anti-sinking device welded below the anchor plate, and a sealing box welded below the anchor plate for isolating concrete.

[0007] The anchor plate has a rectangular through hole with a size slightly larger than the T-shaped head of the T-type anchor bolt, so that the T-shaped head of the T-type anchor bolt can pass through the rectangular through hole at an angle coinciding with the rectangular through hole;

[0008] The anti-sinking device is a U-shaped round steel bar. The two ends of the U-shaped round steel bar are respectively welded to the two long edges of the rectangular through hole. After the T-shaped head passes through the rectangular through hole and rotates at a certain angle, it will come into contact with the U-shaped round steel bar, preventing the T-shaped head from continuing to rotate and preventing the T-shaped anchor bolt from sinking into the bottom of the box.

[0009] Preferably, the angle between the U-shaped round steel and the rectangular through hole in the top view direction is 30° to 60°.

[0010] Preferably, the height of the U-shaped round steel is 3-20mm higher than the T-shaped head of the T-shaped anchor bolt, and the length of the U-shaped round steel is 8-12mm smaller than the width of the T-shaped head.

[0011] Preferably, the height of the sealing box is at least 50mm higher than that of the U-shaped round steel.

[0012] Preferably, the anchor plate has two rectangular through holes at a certain interval, and correspondingly, there are also two sleeves, which are welded one-to-one above the rectangular through holes to form a double sleeve.

[0013] Preferably, a connecting rod is provided between the two sleeves to make the sleeve structure more stable.

[0014] Preferably, the U-shaped round steel is also provided with a magnet in the middle, so that the T-shaped head can pass through the rectangular through hole more easily during installation.

[0015] An installation method for a T-type anchor bolt mounting device includes the following steps:

[0016] Step 1: Make a rectangular through hole in the anchor plate and weld the U-shaped round steel to the bottom of the anchor plate to make an anchor plate with a stop sinking device;

[0017] Step 2: Weld a sealing box to the bottom of the anchor plate and a sleeve to the top of the anchor plate;

[0018] Step 3: Vertically embed the sealing box, anchor plate and sleeve into the foundation, and pour the concrete together with the foundation. The pouring height shall not exceed the height of the top of the sleeve.

[0019] Step 4: Lower the T-bolt from the upper end of the sleeve, so that the T-shaped head of the T-bolt passes through the through hole on the anchor plate and is lowered below the anchor plate, and then cover it with the sleeve sealing cap.

[0020] Step 5: Hoist the equipment to be fixed to the designated position, aligning the fixing holes on the equipment base with the T-bolts;

[0021] Step 6: Lift and rotate the T-bolt so that the T-shaped head of the T-bolt contacts the circumferential of the U-shaped round steel. Then tighten the nut on the bolt of the T-bolt to complete the installation of the T-bolt.

[0022] Step 7: After the equipment is fixed, perform secondary grouting on the bottom of the equipment base to fill the gap between the equipment base and the foundation surface with concrete, so that the T-shaped anchor bolts are more firmly fixed.

[0023] The beneficial effects of the T-type anchor bolt installation device and method provided by this invention are:

[0024] 1. Compared with the traditional installation method, the U-shaped round steel is bent to replace the stop block, which realizes the functions of stopping and preventing sinking. It is only necessary to weld at a 45° angle to ensure that the T-shaped head and the U-shaped round steel are in full contact, reducing the skill requirements of the operator.

[0025] 2. When hoisting equipment, there is no need for construction personnel to hold the T-shaped anchor bolts, and the equipment will not sink to the bottom, thus eliminating safety factors in hoisting operations.

[0026] 3. The double sleeve design reduces the installation accuracy issues associated with individual sleeve devices, and improves the precision of bolt installation and positioning, as well as the overall installation stability. Attached Figure Description

[0027] Figure 1 This is a main sectional view of a T-type anchor bolt installation device provided in an embodiment of the present invention;

[0028] Figure 2 This is a cross-sectional view of a T-type anchor bolt installation device at point AA, provided in an embodiment of the present invention.

[0029] In the diagram: 1-anchor plate, 101-rectangular through hole, 2-sleeve, 201-connecting rod, 202-sleeve sealing cap, 3-sealing box, 4-U-shaped round steel, 5-T-shaped anchor bolt, 501-T-shaped head, 502-nut, 6-equipment base, 7-secondary grouting layer, 8-foundation. Detailed Implementation

[0030] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0031] like Figure 1 and Figure 2As shown, this invention provides a T-type anchor bolt installation device, including an anchor plate 1, a sleeve 2, a stop and anti-sinking device, and a sealing box 3. The anchor plate 1 is made of a 25mm thick steel plate. The sleeve 2 is vertically welded above the anchor plate 1. The anchor plate 1 also has a rectangular through hole 101 communicating with the sleeve 2. The length and width of the rectangular through hole 101 are both 5mm longer than the T-shaped head 501 of the T-type anchor bolt 5, allowing the T-shaped head 501 to pass through the rectangular through hole 101 at an angle coinciding with it and extend into the sealing box 3. The sealing box 3 is welded below the anchor plate 1 to isolate the T-shaped head 501 and the stop and anti-sinking device inside the sealing box 3 from the concrete outside the sealing box 3, facilitating subsequent disassembly. Furthermore, the height of the sealing box 3 is at least 50mm higher than the U-shaped round steel 4 to ensure the contact area between the sealing box 3 and the concrete, increasing the holding force of the sealing box 3 in the concrete.

[0032] In this embodiment, the anti-sinking device is a U-shaped round steel bar 4, which is made of bent steel bars. Its two ends are respectively welded to the two long edges of the rectangular through hole 101. The angle between the U-shaped round steel bar 4 and the rectangular through hole 101 in the top view is 30° to 60°. When the angle between the U-shaped round steel bar 4 and the rectangular through hole 101 in the top view is 45° (i.e., the angle in the bottom view is 135°), the T-shaped head 501 will come into contact with the U-shaped round steel bar 4 after passing through the rectangular through hole 101 and rotating 90° clockwise. This prevents the T-shaped head 501 from continuing to rotate and slipping out of the rectangular through hole 101 when the nut 502 is tightened. At this time, the contact area between the T-shaped head 501 and the anchor plate 1 is the largest and the least likely to slip out. At the same time, the crossbar in the middle of the U-shaped round steel bar 4 is always horizontally below the T-shaped head 501, effectively preventing the T-shaped anchor bolt 5 from sinking into the bottom of the box.

[0033] Furthermore, the height of the U-shaped round steel 4 is 3 to 10 mm higher than the T-shaped head 501 of the T-shaped anchor bolt 5 to allow for a certain installation margin. The length of the U-shaped round steel 4 is 8 to 14 mm smaller than the width of the T-shaped head 501 to ensure that the U-shaped round steel 4 can effectively block the T-shaped head 501 and prevent the T-shaped head 501 from continuing to rotate when tightening the nut 502.

[0034] Furthermore, to improve positioning accuracy, the anchor plate 1 has two rectangular through holes 101 spaced apart. Correspondingly, there are also two sleeves 2, which are welded one-to-one above the rectangular through holes 101 to form a double sleeve 2. This allows for better control of the bolt embedding height during the processing stage, preventing misalignment or displacement of the sealing box 3 during concrete pouring. Additionally, a connecting rod 201 is provided between the two sleeves 2, making the sleeve 2 structure more stable and robust.

[0035] Furthermore, because the sleeve 2 is relatively long and the rectangular through hole 101 on the anchor plate 1 is relatively small, installing the T-bolt 5 requires multiple attempts and constant angle adjustments to allow the T-shaped head 501 of the T-bolt 5 to pass through the rectangular through hole 101, which is time-consuming. Therefore, in this embodiment, a strong magnet is further installed on the crossbar in the middle of the U-shaped round steel 4, with the strong magnet facing the rectangular through hole 101, so that the T-shaped head 501 can pass through the rectangular through hole 101 more easily under the action of attraction during installation.

[0036] The present invention also provides an installation method based on the above-mentioned T-type anchor bolt installation device, specifically including the following steps:

[0037] Step 1: Make a rectangular through hole 101 on the anchor plate 1, and weld the U-shaped round steel 4 to the bottom of the anchor plate 1 to make an anchor plate 1 with a stop sinking device;

[0038] Step 2: Weld the sealing box 3 to the bottom of the anchor plate 1, and weld the sleeve 2 of the T-head 501 anchor bolt to the top of the anchor plate 1;

[0039] Step 3: Vertically embed the sealing box 3, anchor plate 1 and sleeve 2 into the foundation 8, and pour the concrete together with the foundation 8. The pouring height shall not exceed the top height of the sleeve 2.

[0040] Step 4: Lower the T-shaped anchor bolt 5 from the upper end of the sleeve 2, so that the T-shaped head 501 of the T-shaped anchor bolt 5 passes through the through hole on the anchor plate 1 and is lowered to the bottom of the anchor plate 1, and cover it with the sleeve sealing cover 202; after releasing the handle, the cross bar in the middle of the U-shaped round steel 4 will hold the T-shaped head 501 in place, thereby preventing the T-shaped anchor bolt 5 from sinking to the bottom;

[0041] Step 5: Hoist the equipment to be fixed to the designated position, aligning the fixing holes on the equipment base 6 with the T-type anchor bolts 5; throughout the process, it is not necessary to lift the T-type anchor bolts 5 by hand, but only to make minor adjustments when at the bottom, which greatly improves the safety of hoisting operations.

[0042] Step 6: Then lift and rotate the T-bolt 5 so that the T-head 501 of the T-bolt 5 comes into circumferential contact with the U-shaped round steel 4, preventing the T-head 501 from rotating during installation. Then tighten the nut 502 on the screw of the T-bolt 5 to complete the installation of the T-bolt 5.

[0043] Step 7: After the equipment is fixed, perform secondary grouting on the bottom of the equipment base 6 to form a secondary grouting layer 7. Fill the gap between the equipment base 6 and the surface of the foundation 8 with concrete to make the T-shaped anchor bolts 5 more secure.

[0044] The above embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Although the invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of the invention do not depart from the spirit and scope of the invention and should be covered within the scope of the claims of the invention.

Claims

1. A T-type anchor bolt installation device, characterized in that, It includes an anchor plate, a sleeve welded above the anchor plate for installing T-type anchor bolts, a stop and anti-sinking device welded below the anchor plate, and a sealing box welded below the anchor plate for isolating concrete. The anchor plate has a rectangular through hole with a size slightly larger than the T-shaped head of the T-type anchor bolt, so that the T-shaped head of the T-type anchor bolt can pass through the rectangular through hole at an angle coinciding with the rectangular through hole; The anti-sinking device is a U-shaped round steel bar. The two ends of the U-shaped round steel bar are respectively welded to the two long edges of the rectangular through hole. After the T-shaped head passes through the rectangular through hole and rotates at a certain angle, it will come into contact with the U-shaped round steel bar, preventing the T-shaped head from continuing to rotate and preventing the T-shaped anchor bolt from sinking into the bottom of the box.

2. The T-type anchor bolt installation device as described in claim 1, characterized in that: The angle between the U-shaped round steel and the rectangular through hole in the top view direction is 30°~60°.

3. The T-type anchor bolt installation device as described in claim 1, characterized in that: The height of the U-shaped round steel is 3-20mm higher than the T-shaped head of the T-shaped anchor bolt, and the length of the U-shaped round steel is 8-12mm smaller than the width of the T-shaped head.

4. The T-type anchor bolt installation device as described in claim 1, characterized in that: The height of the sealing box should be at least 50mm higher than the U-shaped round steel.

5. The T-type anchor bolt installation device as described in claim 1, characterized in that: The anchor plate has two rectangular through holes at a certain interval. Correspondingly, there are also two sleeves, which are welded one to one above the rectangular through holes to form a double sleeve.

6. The T-type anchor bolt installation device as described in claim 5, characterized in that: A connecting rod is also provided between the two sleeves to make the sleeve structure more stable.

7. The T-type anchor bolt installation device as described in claim 1, characterized in that: The U-shaped round steel is also equipped with a magnet in the middle, which makes it easier for the T-shaped head to pass through the rectangular through hole during installation.

8. An installation method based on the T-type anchor bolt installation device according to claim 1, characterized in that, Includes the following steps: Step 1: Make a rectangular through hole in the anchor plate and weld the U-shaped round steel to the bottom of the anchor plate to make an anchor plate with a stop and anti-sinking device; Step 2: Weld a sealing box to the bottom of the anchor plate and a sleeve to the top of the anchor plate; Step 3: Vertically embed the sealing box, anchor plate and sleeve into the foundation, and pour the concrete together with the foundation. The pouring height shall not exceed the height of the top of the sleeve. Step 4: Lower the T-bolt from the upper end of the sleeve, so that the T-shaped head of the T-bolt passes through the rectangular through hole on the anchor plate and is lowered to the bottom of the anchor plate, and then cover it with the sleeve sealing cap. Step 5: Hoist the equipment to be fixed to the designated position, aligning the fixing holes on the equipment base with the T-bolts; Step 6: Lift and rotate the T-bolt so that the T-shaped head of the T-bolt contacts the circumferential of the U-shaped round steel. Then tighten the nut on the bolt of the T-bolt to complete the installation of the T-bolt. Step 7: After the equipment is fixed, perform secondary grouting on the bottom of the equipment base to fill the gap between the equipment base and the foundation surface with concrete, so that the T-shaped anchor bolts are more firmly fixed.

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