Anchoring connection and anchoring method in building construction

Abstract

The present application belongs to the technical field of anchoring connection in building construction, and particularly relates to an anchoring connecting piece and a method for anchoring connection in building construction. The tool comprises a sleeve, an expanding pipe and a tightening piece. The expanding pipe comprises a plurality of arc-shaped pieces, each of which has a certain length. The arc-shaped pieces are connected with springs between adjacent ones to form a circle. The outer surface of each arc-shaped piece is fixedly connected with a wedge. Compared with the prior art, the present application has the following advantages and positive effects: (1) the wedge extends out of the outer surface of the sleeve and exerts radial pressure on the block or is nailed into the block to achieve fastening, which has good fastening effect and does not depend on the hardness of the construction wall surface; (2) the construction is convenient; (3) the guide part and the expanding part form a pencil head-shaped structure, which facilitates the insertion of the expanding part into the expanding pipe to expand the outer diameter of the expanding pipe; (4) the springs are connected between the adjacent arc-shaped pieces of the expanding pipe, so that the outer diameter of the expanding pipe can be changed; and (5) the rear end of the sleeve is fixedly provided with a ring-shaped baffle to prevent the expanding pipe from being deviated along the length of the sleeve.

Description

Technical Field

[0001] This invention belongs to the field of building construction anchoring connection technology, specifically relating to an anchoring connector and anchoring connection method in building construction. Background Technology

[0002] Expansion bolts are widely used as anchoring connectors in building construction. Generally, expansion bolts refer to metal expansion bolts. Their fixing principle utilizes a wedge-shaped slope to induce expansion, generating frictional gripping force to achieve a fixing effect. One end of the bolt is threaded, and the other end is tapered. It is encased in a steel tube with several slits at the front end. These are inserted together into a pre-drilled hole in the wall, and then the nut is tightened. The nut pulls the bolt outward, drawing the tapered end into the steel tube, causing the tube to expand and thus firmly fixing it to the wall. They are commonly used for securing guardrails, awnings, air conditioners, etc., to materials such as cement and brick. However, expansion bolts require a relatively high hardness of the wall / floor surface; higher hardness results in better fastening. Therefore, when using expansion bolts to fix fire hydrant boxes, electrical boxes, etc., in lightweight masonry walls, the fastening effect is not ideal. Summary of the Invention

[0003] This invention addresses the problems existing in the prior art by providing an anchoring connector and an anchoring connection method for building construction.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: an anchoring connector for building construction, comprising a sleeve, an expansion tube, and a tightening component; the expansion tube includes multiple arc-shaped components, each arc-shaped component having a certain length; the multiple arc-shaped components form a circle, and a spring connects adjacent arc-shaped components; a wedge is fixedly connected to the outer surface of each arc-shaped component; the expansion tube is installed at the rear end of the sleeve, and through holes are respectively opened at positions corresponding to the multiple wedges of the sleeve and the expansion tube, and the wedges of the expansion tube are slidably connected to the corresponding through holes of the sleeve; when the spring is... In normal conditions, the outer end of the wedge does not protrude from the outer surface of the sleeve; the inner surface of the sleeve has an internal thread at the front; the tightening component is an integral structure consisting of a head, a screw, an expansion part, and a guide part from the outside in; the guide part and the expansion part form a pencil-tip shaped structure; the diameter of the expansion part is larger than the inner diameter of the expansion tube when the spring is in normal conditions, and smaller than the diameter of the screw; in use, the expansion part is inserted into the expansion tube, increasing the outer diameter of the expansion tube; in use, the external thread of the screw is threadedly connected to the internal thread at the front of the sleeve.

[0005] Preferably, the number of the arc-shaped components is three to nine.

[0006] Preferably, the wedge is in the shape of a round nail or a cuboid.

[0007] Preferably, the wedge is rectangular and its outer end face is serrated.

[0008] Preferably, the radius of the tightening part plus the thickness of the arc-shaped part is equal to the inner diameter of the sleeve; the length of the tightening part is equal to the length of the expansion tube.

[0009] Preferably, the head of the tightening member has a circular or hexagonal longitudinal cross-section; and an annular baffle is fixedly provided at the rear end of the sleeve.

[0010] An anchoring connection method in building construction, which uses the aforementioned anchoring connector to fix the object to be installed to a masonry wall, includes the following steps:

[0011] Step 1: Based on the design, determine the installation location of the object to be installed on the block wall at the construction site and select the drilling location;

[0012] Step 2: Use an impact drill to drill a hole at the drilling location, with the hole diameter being approximately equal to the outer diameter of the sleeve;

[0013] Step 3: Drive the sleeve with the expansion tube inside into the drill hole by hammering.

[0014] Step 4: Align the mounting holes on the back plate of the object to be installed with the outer end of the sleeve, and insert the tightening component through the back plate of the object to be installed into the sleeve until the inner end face of the head of the tightening component is in contact with the back plate of the object to be installed.

[0015] Preferably, there are at least two drilling locations in step one.

[0016] Preferably, the drilling length in step two is not less than the sleeve length.

[0017] Preferably, in step four, during the process of installing the tightening component into the sleeve, as the screw of the tightening component is screwed into the internal thread of the sleeve, the guide part and the tightening part of the tightening component are gradually inserted into the expansion tube, and the wedge block extends out of the outer surface of the sleeve and radially presses the block.

[0018] Compared with the prior art, the advantages and positive effects of the present invention are as follows: (1) The anchoring connector provided by the present invention in building construction achieves fastening by extending the wedge block out of the outer surface of the sleeve and applying radial pressure to the block or nailing it into the block. The fastening effect is good, and the fastening effect does not depend on the hardness of the construction wall surface.

[0019] (2) Convenient construction: the sleeve with the expansion tube installed inside is driven into the drill hole by hammering, and then the tightening part is installed into the sleeve through the back plate of the fire hydrant box or distribution box, etc.

[0020] (3) The guide part and the tightening part form a pencil-tip shaped structure, which makes it easy for the tightening part to be inserted into the expansion tube to expand the outer diameter of the expansion tube;

[0021] (4) A spring is connected between adjacent arc-shaped parts of the expansion tube, so that the outer diameter of the expansion tube can be changed;

[0022] (5) An annular baffle is fixed at the rear end of the sleeve to prevent the expansion tube from shifting along the length of the sleeve. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below:

[0024] Figure 1 Schematic diagram of anchoring connections in building construction Figure 1 ;

[0025] Figure 2 Schematic diagram of anchoring connections in building construction Figure 2 ;

[0026] Figure 3 A schematic diagram of an expansion tube in an anchoring connection during building construction. Figure 1 ;

[0027] Figure 4 A schematic diagram of an expansion tube in an anchoring connection during building construction. Figure 2 ;

[0028] Figure 5 A schematic diagram of a tightening component in an anchoring connection used in building construction.

[0029] Figure 6 A schematic diagram of a sleeve in an anchoring connection during building construction. Figure 1 ;

[0030] Figure 7 A schematic diagram of a sleeve in an anchoring connection during building construction. Figure 2 ;

[0031] Figure 8 A schematic diagram showing the fit between the sleeve and the expansion tube before the tightening parts are installed;

[0032] Figure 9 A schematic diagram showing the fit between the sleeve and the expansion tube after the tightening parts have been installed.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1—Tightening component, 11—Head, 12—Screw, 13—Expansion part, 14—Guide part;

[0035] 2—Sleeve, 21—Through hole, 22—Annular baffle, 23—Internal thread;

[0036] 3—Expansion tube, 31—Arc-shaped part, 32—Spring, 33—Wedge block. Detailed Implementation

[0037] To better understand the above-mentioned objectives, features and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0038] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways than those described herein, and therefore the invention is not limited to the specific embodiments disclosed in the following specification.

[0039] Example 1

[0040] The following is combined Figures 1-9 For an anchoring connection in building construction as described in Example 1, such as Figure 1 and 2 As shown, the anchoring connection in building construction includes a sleeve 2, an expansion tube 3, and a tightening component 1.

[0041] like Figure 3 and 4 As shown, the expansion tube 3 includes multiple arc-shaped components 31, each with a certain length. The multiple arc-shaped components 31 form a circle, and springs 32 connect adjacent arc-shaped components 31. A wedge block 33 is fixedly connected to the outer surface of each arc-shaped component 31.

[0042] like Figure 1-3 As shown, the expansion tube 3 is installed inside the rear end of the sleeve 2. Figure 6 and 7 As shown, the sleeve 2 and the expansion tube 3 have through holes 21 at corresponding positions of multiple wedges 33. The wedges 33 of the expansion tube 3 are slidably connected to the corresponding through holes 21 of the sleeve 2. When the spring 32 is in the normal state, the outer end of the wedge 33 does not protrude from the outer surface of the sleeve 2. The front part of the inner surface of the sleeve 2 has an internal thread 23.

[0043] like Figure 5 As shown, the tightening component 1 is a one-piece structure, consisting of a head 11, a screw 12, a tightening part 13, and a guide part 14 from the outside in. The guide part 14 and the tightening part 13 form a pencil-tip shaped structure. The diameter of the tightening part 13 is larger than the inner diameter of the expansion tube 3 when the spring 32 is in its normal state, and smaller than the diameter of the screw 12. In use, the tightening part 13 is inserted into the expansion tube 3, increasing the outer diameter of the expansion tube 3.

[0044] When in use, the external thread of the screw 12 is threadedly connected to the internal thread 23 at the front of the sleeve 2.

[0045] like Figure 3 As shown, there are six arc-shaped parts 31.

[0046] like Figure 3 As shown, wedge 33 is rectangular, and the outer end face of wedge 3 is serrated.

[0047] The radius of the tightening part 13 plus the thickness of the arc-shaped part 31 equals the inner diameter of the sleeve 2. The length of the tightening part 13 equals the length of the expansion tube 3.

[0048] The head 11 of the tightening component 1 has a hexagonal longitudinal section. The rear end of the sleeve 2 is fixed with an annular baffle 22.

[0049] Example 2

[0050] The difference between this embodiment and Embodiment 1 is that the number of arc-shaped parts 31 is three. The number of wedges 33 on the outer surface of each arc-shaped part 31 is multiple and they are round nail-shaped. The longitudinal cross-section of the head 11 of the tightening part 1 is circular.

[0051] Example 3

[0052] The difference between this embodiment and Embodiment 1 is that the number of arc-shaped parts 31 is nine.

[0053] An anchoring connection method in building construction, which uses the aforementioned anchoring connectors in building construction to fix fire hydrant boxes, electrical distribution boxes, and other installations to a masonry wall, includes the following steps:

[0054] Step 1: Based on the design, determine the installation location of the object to be installed on the block wall at the construction site and select the drilling location;

[0055] Step 2: Use an impact drill to drill a hole at the drilling location. The diameter of the hole is approximately equal to the outer diameter of sleeve 2.

[0056] Step 3: Drive the sleeve 2, which has the expansion tube 3 installed inside, into the drill hole by hammering. Figure 8 As shown;

[0057] Step 4: Align the mounting holes on the back plate of the object to be installed with the outer port of the sleeve 2, and install the tightening component 1 through the back plate of the object to be installed into the sleeve 2 until the inner end face of the head 11 of the tightening component 1 is in contact with the back plate of the object to be installed.

[0058] In step one, there should be at least two drilling locations.

[0059] In step two, the drilling length shall not be less than the length of sleeve 2.

[0060] In step four, during the installation of the tightening component 1 into the sleeve 2, as the screw 12 of the tightening component 1 is screwed into the internal thread 23 of the sleeve 2, the guide part 14 and the expansion part 13 of the tightening component 1 are gradually inserted into the expansion tube 3. The wedge block 33 extends out of the outer surface of the sleeve 2 and radially presses the block, such as... Figure 9 As shown.

[0061] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments that can be applied to other fields. However, any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. An anchoring connector used in building construction, characterized in that, It includes a sleeve (2), an expansion tube (3), and a tightening component (1); The expansion tube (3) includes multiple arc-shaped parts (31), each arc-shaped part (31) having a certain length; the multiple arc-shaped parts (31) form a circle, and springs (32) are connected between adjacent arc-shaped parts (31); a wedge (33) is fixedly connected to the outer surface of each arc-shaped part (31); The expansion tube (3) is installed inside the rear end of the sleeve (2). The sleeve (2) and the expansion tube (3) have through holes (21) at corresponding positions. The wedges (33) of the expansion tube (3) are slidably connected to the corresponding through holes (21) of the sleeve (2). When the spring (32) is in the normal state, the outer end of the wedge (33) does not protrude from the outer surface of the sleeve (2). The front part of the inner surface of the sleeve (2) has an internal thread (23). The tightening component (1) is an integral structure and consists of a head (11), a screw (12), a tightening part (13), and a guide part (14) from the outside to the inside. The guide part (14) and the tightening part (13) form a pencil-tip shaped structure. The diameter of the tightening part (13) is larger than the inner diameter of the expansion tube (3) when the spring (32) is in its normal state, and smaller than the diameter of the screw (12). In use, the tightening part (13) is inserted into the expansion tube (3) and increases the outer diameter of the expansion tube (3). When in use, the external thread of the screw (12) is threadedly connected to the internal thread (23) at the front of the sleeve (2).

2. The anchoring connector in building construction according to claim 1, characterized in that, The number of the arc-shaped components (31) is three to nine.

3. The anchoring connector in building construction according to claim 1, characterized in that, The wedge (33) is in the shape of a round nail or a cuboid.

4. The anchoring connector in building construction according to claim 3, characterized in that, The wedge (33) is rectangular, and the outer end face of the wedge (33) is serrated.

5. The anchoring connector in building construction according to claim 1, characterized in that, The radius of the expansion part (13) plus the thickness of the arc-shaped part (31) is equal to the inner diameter of the sleeve (2); the length of the expansion part (13) is equal to the length of the expansion tube (3).

6. The anchoring connector in building construction according to claim 1, characterized in that, The head (11) of the tightening member (1) has a circular or hexagonal longitudinal cross section; the rear end of the sleeve (2) is fixedly provided with an annular baffle (22).

7. An anchoring connection method in building construction, characterized in that, Fixing the object to be installed to the masonry wall using the anchoring connectors in building construction as described in any one of claims 1-6 includes the following steps: Step 1: Based on the design, determine the installation location of the object to be installed on the block wall at the construction site and select the drilling location; Step 2: Drill a hole at the drilling location using an impact drill. The diameter of the hole is approximately equal to the outer diameter of the sleeve (2). Step 3: Drive the sleeve (2) with the expansion tube (3) installed inside into the drill hole by hammering; Step 4: Align the mounting holes on the back plate of the object to be installed with the outer port of the sleeve (2), and install the tightening part (1) through the back plate of the object to be installed into the sleeve (2). As the screw (12) of the tightening part (1) is screwed into the internal thread (23) of the sleeve (2), the guide part (14) and the expansion part (13) of the tightening part (1) are gradually inserted into the expansion tube (3). The wedge (33) extends out of the outer surface of the sleeve (2) and radially presses the block until the inner end face of the head (11) of the tightening part (1) is in contact with the back plate of the object to be installed.

8. The anchoring connection method in building construction according to claim 7, characterized in that, The drilling locations mentioned in step one are at least two.

9. The anchoring connection method in building construction according to claim 7, characterized in that, In step two, the drilling length shall not be less than the length of the sleeve (2).

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