Keel fixing structure with post-welding anchoring and tooth locking

The toothed locking structure, which allows for welding-free post-anchoring, solves the problem of welding required for keel fixing, achieving stability and position adjustment for welding-free installation, and facilitating the fixing of keels of different sizes.

CN224413031UActive Publication Date: 2026-06-26SHANGHAI DALI CONSTR TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI DALI CONSTR TECH CO LTD
Filing Date
2025-08-01
Publication Date
2026-06-26

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    Figure CN224413031U_ABST
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Abstract

The utility model relates to the technical field of building, a keel fixing structure is exempted from the post -welding anchoring and tooth lock, including one installation base plate, and the installation hole for the anchor bolt is crossed is seted up on installation base plate, still including the first clamping frame and the second clamping frame for the clamping in the both sides of keel, and the first clamping frame and the second clamping frame are linked with installation base plate through the limiting bolt, and the limiting bolt includes axial limit head, radial limit portion and screw rod part, and the insertion port for the axial crossing axial limit head and radial limit portion and the locking groove for locking radial limit portion are seted up on installation base plate, and the insertion port and locking groove butt joint conduction, and the opposite side of locking groove is provided with the rack structure, and the opposite side of radial limit portion is provided with the tooth lock structure and is limited with rack structure clamping, and the first clamping frame and the second clamping frame are linked with keel through the locking bolt. The utility model realizes the installation of keel on -the -spot, need not welding, can realize the installation of keel.
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Description

Technical Field

[0001] This utility model relates to the field of building technology, specifically to a keel fixing structure. Background Technology

[0002] When dry-hanging stone cladding on walls, first install a keel on the building wall, then install dry-hanging components on the keel, and finally fix the stone cladding to the dry-hanging components.

[0003] The traditional methods of fixing keels include the following:

[0004] Method 1 involves anchoring bolts into the building wall, connecting the bolts to an installation plate, welding a transition plate onto the installation plate, and then welding the transition plate to the keel for fixation. While this method allows anchoring bolts after the building wall is formed, it requires welding. Individual differences in welding skills among workers can lead to inconsistent weld quality, which in turn affects the overall connection quality of the keel.

[0005] Method two involves fixing the component to the keel using a channel-type embedded part. Although the channel-type embedded part can be connected to the keel with bolts, it needs to be pre-fixed into the concrete of the building wall, making position adjustment inconvenient.

[0006] Method three involves pre-embedding plates within the concrete of the building walls, welding adapter plates onto these plates, and then welding the keel together onto the adapter plates. This method requires pre-embedding, and the position is inconvenient to adjust. Furthermore, individual differences in welding skills among workers can lead to inconsistent welding quality, which in turn affects the overall connection quality of the keel.

[0007] Currently, there is a lack of a weld-free keel fixing structure that uses anchor bolts for fixation. Utility Model Content

[0008] To address the problems existing in the prior art, this utility model provides a keel fixing structure that is weld-free and anchored with locked teeth, thereby solving at least one of the above technical problems.

[0009] To achieve the above objectives, this utility model provides a keel fixing structure that is anchored without welding and has locked teeth, characterized in that it includes a mounting base plate, on which mounting holes for anchor bolts to pass through are provided;

[0010] It also includes a first clamping frame and a second clamping frame for clamping on both sides of the keel, the first clamping frame and the second clamping frame being connected to the mounting base plate by limiting bolts;

[0011] The limiting bolt includes an axial limiting head, a radial limiting part, and a screw part connected sequentially along the axial direction.

[0012] The cross-sectional area of ​​the axial limiting head is larger than the cross-sectional area of ​​the radial limiting head.

[0013] The mounting base plate has an insertion port for axially passing through the axial limiting head and the radial limiting part, and a locking groove for locking the radial limiting part. The insertion port and the locking groove are connected and communicate with each other.

[0014] A rack structure is provided on the opposite side of the locking groove, and a tooth locking structure that engages with the rack structure is provided on the opposite side of the radial limiting part.

[0015] The first clamping frame and the second clamping frame are connected to the keel by locking bolts, and the first clamping frame and the second clamping frame are provided with bolt holes for passing through the locking bolts.

[0016] This invention enables the installation of keel on-site without welding.

[0017] This device prevents the lateral slippage of the limit bolts, ensuring installation stability.

[0018] After the building wall is formed, the mounting base plate is fixed to the wall by the anchor bolts. The axial limiting head and radial limiting part of the limiting bolt are axially inserted into the insertion port. Then, the position of the limiting bolt is adjusted along the length direction of the locking groove. After the limiting bolt slides to the corresponding position, the radial limiting part is pulled out axially. The tooth locking structure of the radial limiting part is engaged with the rack structure for fixation. The screw part passes through the first clamping frame or the second clamping frame and is locked by the screw part connected by the nut thread.

[0019] More preferably, the mounting base includes a first plate-shaped body and a boss, and the boss is fixed to the side of the first plate-shaped body away from the keel;

[0020] The height of the boss is not less than the sum of the axial lengths of the axial limiting head and the radial limiting part.

[0021] The boss allows for the adjustment of the position of the limiting bolts between the mounting base and the building wall.

[0022] More preferably, the cross-section of the radial limiting portion is rectangular; and the diagonal region of the radial limiting portion is the tooth locking structure.

[0023] More preferably, the axial limiting head has a rectangular structure.

[0024] More preferably, the locking groove is inclined along its length.

[0025] More preferably, the mounting base plate has two locking grooves that are mirror-symmetrically arranged, and the distance between the two locking grooves increases from top to bottom.

[0026] By tilting the locking groove, it is easier to decompose the force at the locking groove and the tooth locking structure during installation, thereby improving the locking strength.

[0027] More preferably, the first clamping frame and the second clamping frame are arranged in a mirror-symmetrical manner.

[0028] More preferably, the first clamping frame and the second clamping frame are arranged on the left and right sides.

[0029] More preferably, the first clamping frame and the second clamping frame are L-shaped angle irons.

[0030] More preferably, the first clamping frame and the second clamping frame are provided with a first mounting hole for the limit bolt to pass through.

[0031] More preferably, the first mounting hole is an oblong hole, and the oblong hole is inclined.

[0032] More preferably, the first clamping frame and the second clamping frame are provided with a second mounting hole for the locking bolt to pass through, and the length direction of the second mounting hole is parallel to the thickness direction of the mounting substrate.

[0033] More preferably, when the locking bolt is fixed at the two extreme positions of the second mounting hole, the keel is either embedded or partially protruding between the first clamping frame and the second clamping frame.

[0034] Compared with the prior art, the beneficial effects of this utility model are:

[0035] This invention enables the installation of the keel on-site without welding. After the building wall is formed, it is fixed by post-anchoring bolts.

[0036] This invention facilitates locking the mounting base and the limiting bolt by engaging the locking groove on the mounting base with the radial limiting part, thus preventing the limiting bolt from slipping or shifting laterally.

[0037] This device allows for adjustment of the keel position. It can also accommodate the clamping and fixing of keels of different sizes. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of a specific embodiment 1 of the present utility model;

[0039] Figure 2This is a structural schematic diagram from another perspective of a specific embodiment 1 of this utility model;

[0040] Figure 3 This is a structural schematic diagram from another perspective of a specific embodiment 1 of this utility model;

[0041] Figure 4 This is a schematic diagram of the mounting substrate of a specific embodiment 1 of the present utility model;

[0042] Figure 5 This is a schematic diagram of a limiting bolt according to a specific embodiment 1 of this utility model;

[0043] Figure 6 This is a schematic diagram of the structure of the mounting base plate and the limiting bolt when combined in a specific embodiment of the present invention;

[0044] Figure 7 This is a schematic diagram of the structure of the mounting base plate and the limiting bolt in a specific embodiment 1 of this utility model.

[0045] In the figure: 1 is the mounting base, 2 is the limiting bolt, 3 is the first clamping frame, 4 is the second clamping frame, 5 is the keel, 6 is the locking bolt, 11 is the insertion port, 12 is the locking groove, 13 is the boss, 21 is the axial limiting head, 22 is the radial limiting part, 23 is the screw part, 41 is the first mounting hole, and 42 is the second mounting hole. Detailed Implementation

[0046] The present invention will be further described below with reference to the accompanying drawings.

[0047] See Figures 1 to 7Specific Embodiment 1: A keel 5 fixing structure that requires no welding and has locked teeth includes a mounting base plate 1 with mounting holes for anchor bolts to pass through; it also includes a first clamping frame 3 and a second clamping frame 4 for clamping on both sides of the keel 5, the first clamping frame 3 and the second clamping frame 4 being connected to the mounting base plate by limiting bolts 2; the limiting bolt 2 includes an axial limiting head 21, a radial limiting part 22 and a screw part 23 connected sequentially along the axial direction; the cross-sectional area of ​​the axial limiting head 21 is larger than the cross-sectional area of ​​the radial limiting head. The mounting base has an insertion port 11 for axially passing through the axial limiting head 21 and the radial limiting part 22, and a locking groove 12 for locking the radial limiting part 22. The insertion port 11 and the locking groove 12 are connected and aligned. A rack structure is provided on the opposite side of the locking groove 12, and a toothed locking structure that engages with the rack structure is provided on the opposite side of the radial limiting part 22. The first clamping frame 3 and the second clamping frame 4 are connected to the keel 5 by locking bolts 6. Bolt holes for the locking bolts 6 are provided on the first clamping frame 3 and the second clamping frame 4. This invention enables the keel 5 to be installed on-site without welding. This device avoids the lateral slippage of the limiting bolt 2, ensuring installation stability. The insertion port and the locking groove are connected and aligned to form an arrow-shaped structure.

[0048] The mounting base includes a first plate-shaped body and a boss 13. The boss 13 is fixed to the side of the first plate-shaped body away from the keel 5. The height of the boss 13 is not less than the sum of the axial lengths of the axial limiting head 21 and the radial limiting part 22. The boss 13 facilitates the existence of space between the mounting base and the building wall for adjusting the position of the limiting bolts 2. The first plate-shaped body and the boss can be welded together. Alternatively, the first plate-shaped body and the boss can be an integral structure.

[0049] The radial limiting part 22 has a rectangular cross-section; the diagonal area of ​​the radial limiting part 22 is a tooth locking structure. The axial limiting head 21 has a rectangular structure. The radial limiting part 22 has a rounded rectangular cross-section. The corners of the radial limiting part are directly opposite the sides of the axial limiting head.

[0050] The locking groove 12 is inclined along its length. Two locking grooves 12 are provided on the mounting base 1, arranged symmetrically in a left-right mirror configuration, with the distance between the two locking grooves 12 increasing from top to bottom. The inclined arrangement of the locking grooves 12 facilitates the dispersal of forces between the locking groove 12 and the tooth locking structure during installation, thereby improving locking strength. Alternatively, two parallel locking grooves can be provided on the mounting base 1.

[0051] The first clamping frame 3 and the second clamping frame 4 are arranged symmetrically in mirror image. The first clamping frame 3 and the second clamping frame 4 are arranged to the left and right of each other. The first clamping frame 3 and the second clamping frame 4 are L-shaped angle irons.

[0052] The first clamping frame 3 and the second clamping frame 4 are provided with a first mounting hole 41 for the limit bolt 2 to pass through. The first mounting hole 41 is an oblong hole, and the oblong hole is set at an angle.

[0053] The first clamping frame 3 and the second clamping frame 4 are provided with second mounting holes 42 for passing through the locking bolts 6. The length direction of the second mounting holes 42 is parallel to the thickness direction of the mounting substrate. When the locking bolts 6 are fixed at the two extreme positions of the second mounting holes 42, the keel 5 is alternately embedded or partially protruding between the first clamping frame 3 and the second clamping frame 4. The keel 5 has a square frame structure, and through holes for passing through the locking bolts 6 are provided on opposite sides of the keel 5.

[0054] How to use this device:

[0055] After the building wall is formed, the mounting base plate is fixed to the wall using post-anchored anchor bolts. The axial limiting head 21 and radial limiting part 22 of the limiting bolt 2 are axially inserted into the insertion port 11. Then, the position of the limiting bolt 2 is adjusted along the length of the locking groove 12. After the limiting bolt 2 slides to the corresponding position, the radial limiting part 22 is pulled out axially, and the toothed locking structure of the radial limiting part 22 is engaged with the rack structure for fixation. The screw part 23 passes through the first clamping frame 3 or the second clamping frame 4, and is locked by the threaded connection of the nut to the screw part 23, thereby achieving the fixation of the first clamping frame 3 and the second clamping frame 4. The mounting base plate 1 and the first clamping frame are clamped between the axial limiting head 21 and the nut. The mounting base plate 1 and the second clamping frame are clamped between the axial limiting head 21 and the nut.

[0056] The first clamping frame 3, the keel 5, and the second clamping frame 4 are connected by a common through-locking bolt 6 to achieve relative fixation with the keel 5.

[0057] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A keel fixing structure that requires no welding and features tooth locking, characterized in that, It includes a mounting base plate, on which mounting holes for anchor bolts to pass through are provided; It also includes a first clamping frame and a second clamping frame for clamping on both sides of the keel, the first clamping frame and the second clamping frame being connected to the mounting base plate by limiting bolts; The limiting bolt includes an axial limiting head, a radial limiting part, and a screw part connected sequentially along the axial direction. The cross-sectional area of ​​the axial limiting head is larger than the cross-sectional area of ​​the radial limiting part; The mounting base plate has an insertion port for axially passing through the axial limiting head and the radial limiting part, and a locking groove for locking the radial limiting part. The insertion port and the locking groove are connected and communicate with each other. A rack structure is provided on the opposite side of the locking groove, and a tooth locking structure that engages with the rack structure is provided on the opposite side of the radial limiting part. The first clamping frame and the second clamping frame are connected to the keel by locking bolts, and the first clamping frame and the second clamping frame are provided with bolt holes for passing through the locking bolts.

2. The keel fixing structure with weld-free post-anchoring and tooth locking as described in claim 1, characterized in that: The mounting base plate includes a first plate-shaped body and a boss, and the boss is fixed on the side of the first plate-shaped body away from the keel. The height of the boss is not less than the sum of the axial lengths of the axial limiting head and the radial limiting part.

3. The keel fixing structure with weld-free post-anchoring and tooth locking as described in claim 1, characterized in that: The cross-section of the radial limiting part is rectangular; the diagonal region of the radial limiting part is the tooth locking structure.

4. The keel fixing structure with weld-free post-anchoring and tooth locking according to claim 1, characterized in that: The axial limiting head has a rectangular structure.

5. The keel fixing structure with weld-free post-anchoring and tooth locking according to claim 1, characterized in that: The locking groove is inclined along its length.

6. The keel fixing structure with weld-free post-anchoring and tooth locking according to claim 1, characterized in that: The mounting base plate has two locking grooves that are mirror-symmetrically arranged, and the distance between the two locking grooves increases from top to bottom.

7. The keel fixing structure with weld-free post-anchoring and tooth locking according to claim 1, characterized in that: The first clamp and the second clamp are arranged in a mirror-symmetrical manner.

8. The keel fixing structure with weld-free post-anchoring and tooth locking according to claim 1, characterized in that: The first clamping frame and the second clamping frame are L-shaped angle irons.

9. The keel fixing structure with weld-free post-anchoring and tooth locking according to claim 1, characterized in that: The first clamping frame and the second clamping frame are provided with a first mounting hole for the limit bolt to pass through; The first mounting hole is an oblong hole, and the oblong hole is inclined.

10. A keel fixing structure with weld-free post-anchoring and tooth locking as described in claim 1, characterized in that: The first clamping frame and the second clamping frame are provided with a second mounting hole for the locking bolt to pass through, and the length direction of the second mounting hole is parallel to the thickness direction of the mounting base plate; When the locking bolt is fixed at the two extreme positions of the second mounting hole, the keel is either embedded or partially protruding between the first clamping frame and the second clamping frame.