Expansion anchor for building construction

Abstract

The utility model relates to the technical field of expansion ground anchors, and discloses an expansion ground anchor for building construction, which comprises a sleeve, expansion sheets, wedge blocks and an expansion mechanism, the expansion sheets are uniformly distributed outside the sleeve, the wedge blocks are connected outside the expansion sheets, the expansion mechanism is in threaded connection with the inside of the sleeve, a filling mechanism is assembled inside the sleeve, and the filling mechanism is connected with the sleeve. The filling mechanism comprises a hollow cylinder, the hollow cylinder is embedded in the sleeve, bottle bodies are evenly distributed in the hollow cylinder, the two ends of the outer portion of each bottle body communicate with pressing spray heads, and the outer portions of the pressing spray heads communicate with hoses. According to the expansion anchor for building construction, it is avoided that when a sleeve is used in a humid area for a long time, a gap between the sleeve and a wall is eroded by moisture, consequently, the service life of the sleeve is shortened, the fixing effect of the sleeve on a workpiece is affected, meanwhile, operation steps are reduced, workers do not need to manually fill foam filler, and the construction efficiency is improved. And therefore, the overall mounting speed of the device is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of expansion anchor nails, in particular to an expansion anchor nail for building construction. Background Art

[0002] An expansion anchor is an anchor used to fix panels, decorative panels, etc. on metal or concrete surfaces. It generally consists of a main part and an expansion part. The main part is usually a screw, and the expansion part can expand when subjected to tension, increasing the contact area with the surface, thereby increasing the stability and pull-out resistance of the fixing.

[0003] Expansion anchors are mainly used in construction and building decoration. In the prior art, a hole is usually drilled inside the wall, and then the screw sleeve is inserted. The screw sleeve is expanded by screws to fix the device. However, the hole in the wall is usually larger than the outer diameter of the screw sleeve, and the top of the screw sleeve is usually exposed to the outside. In areas with a relatively humid environment, moisture will corrode the screw sleeve and the exposed screw sleeve head, thereby reducing the service life of the device. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides an expansion anchor for construction to solve the technical problem that the top of the above-mentioned screw sleeve is usually exposed to the outside. In areas with a relatively humid environment, moisture will corrode the screw sleeve and the exposed screw sleeve head, thereby reducing the service life of the device.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an expansion anchor for construction, comprising: a sleeve, an expansion sheet, a wedge and an expansion mechanism, the expansion sheet is evenly arranged on the outside of the sleeve, the outside of the expansion sheet is connected to the wedge, the expansion mechanism is threadedly connected to the inside of the sleeve, the inside of the sleeve is equipped with a filling mechanism, the filling mechanism comprises a hollow cylinder, the hollow cylinder is embedded in the inside of the sleeve, the inside of the hollow cylinder is evenly arranged with a bottle body, both ends of the outside of the bottle body are connected to a press nozzle, and the outside of the press nozzle is connected to a hose.

[0008] Preferably, the expansion mechanism includes a tapered threaded rod, the top of the tapered threaded rod is connected to a protective sleeve, the bottom of the protective sleeve is slidably connected to an inner sleeve, a second spring is evenly distributed between the inner sleeve and the protective sleeve, the outer bottom of the tapered threaded rod is a tapered rod to facilitate insertion into the interior of the sleeve, the outer top is a threaded rod that can be threadedly connected to the inner top of the sleeve, the protective sleeve cooperates with the inner sleeve to protect the top of the sleeve, the inner sleeve can be stored in the protective sleeve, and then when the thread of the tapered threaded rod descends, the inner sleeve can still cover the top of the sleeve.

[0009] Preferably, a hexalobular groove is provided on the top of the protective cover, and the hexalobular groove facilitates the tapered threaded rod to be driven to rotate by a tool such as a screwdriver.

[0010] Preferably, a groove is provided on the top of the sleeve, and the groove is connected to the hose. When the inner sleeve is completely sleeved on the top of the sleeve, the groove cooperates with the hose to fill the foam filler between the sleeve and the inner sleeve.

[0011] Preferably, the bottom of the sleeve is equipped with a sharp corner, and the outside of the sharp corner is polished, so that the sharp corner facilitates the insertion of the sleeve into the hole.

[0012] Preferably, a push block is connected to the outside of the bottle body, and a first spring is connected to the other end of the bottle body. The first spring is connected to the hollow cylinder. The push block facilitates the conical threaded rod to drive the bottle body to move when inserted into the sleeve. The first spring can make the bottle body return to its original position after the movement is completed.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides an expansion anchor for construction, which has the following beneficial effects:

[0015] When the expansion anchor, expansion mechanism and sleeve for construction are assembled, the added filling mechanism automatically fills the sleeve and the wall, as well as the inner sleeve, the plum blossom groove and the top of the sleeve with foam filler, and then seals the sleeve, the expansion mechanism and the wall, to prevent the gap between the sleeve and the wall from being corroded by moisture when used for a long time in a humid area, thereby reducing the service life of the sleeve and the top of the sleeve and affecting the fixing effect of the sleeve on the workpiece, and at the same time reducing the operation steps, eliminating the need for staff to manually fill the foam filler, thereby improving the overall installation speed of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the utility model being assembled;

[0017] Figure 2 This is a separation schematic diagram of the utility model;

[0018] Figure 3 This is a front cross-sectional view of the sleeve of the utility model;

[0019] Figure 4 It is a partial cross-sectional view of the expansion mechanism of the utility model;

[0020] Figure 5 It is a partial cross-sectional view of the filling mechanism of the utility model.

[0021] In the figure: 1, sleeve; 11, sharp corner; 12, groove; 2, expansion sheet; 3, wedge block; 4, filling mechanism; 41, hollow cylinder; 42, bottle body; 43, push block; 44, press nozzle; 45, hose; 46, first spring; 5, expansion mechanism; 51, tapered threaded rod; 52, protective sleeve; 53, inner sleeve; 54, plum blossom slot; 55, second spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The utility model provides a technical solution, please refer to Figure 1 and Figure 2 An expansion anchor for construction includes: a sleeve 1, an expansion sheet 2, a wedge 3 and an expansion mechanism 5. This scheme is a structural improvement on the non-electronic component part based on the expansion anchor in the prior art, wherein the sleeve 1, the expansion sheet 2, the wedge 3 and the expansion mechanism 5 are common expansion anchor products that have been promoted in the prior art.

[0024] The expansion pieces 2 are evenly arranged on the outside of the sleeve 1, and the outside of the expansion piece 2 is connected with a wedge block 3. The expansion mechanism 5 is threadedly connected to the inside of the sleeve 1. The bottom of the sleeve 1 is equipped with a sharp corner 11, and the outside of the sharp corner 11 is polished. The sharp corner 11 is convenient for the sleeve 1 to be inserted into the hole. The sleeve 1 can be inserted into the hole that needs to be fixed. The expansion piece 2 facilitates the insertion of the tapered threaded rod 51 for driving, thereby expanding and fixing the sleeve 1. The wedge block 3 facilitates the insertion of the tapered threaded rod 51 to drive the expansion piece 2 to move.

[0025] See also Figure 3 and Figure 5The interior of the sleeve 1 is equipped with a filling mechanism 4, which includes a hollow cylinder 41. The hollow cylinder 41 can support the bottle body 42. The hollow cylinder 41 is embedded in the interior of the sleeve 1. The bottle body 42 is evenly distributed inside the hollow cylinder 41. The interior of the bottle body 42 is filled with a common foam filler in the prior art, which can be sprayed out from the interior of the bottle body 42 for rapid reaction expansion.

[0026] Both ends of the outside of the bottle body 42 are connected with a pressing nozzle 44, which can discharge the foam filler inside the bottle body 42 by squeezing, and the outside of the pressing nozzle 44 is connected with a hose 45, and the two hoses 45 can respectively fill the foam filler between the sleeve 1 and the hole and between the top of the sleeve 1 and the inner sleeve 53, and the two hoses 45 are respectively inserted into the top and the outside of the sleeve 1, and the outside of the bottle body 42 is connected with a push block 43, and the other end of the bottle body 42 is connected with a first spring 46, and the first spring 46 is connected to the hollow cylinder 41, and the push block 43 facilitates the conical threaded rod 51 to drive the bottle body 42 to move when it is inserted into the sleeve 1, and the first spring 46 can make the bottle body 42 return after the movement is completed.

[0027] See also Figure 4 The expansion mechanism 5 includes a tapered threaded rod 51, the top of the tapered threaded rod 51 is connected to a protective sleeve 52, the bottom of the protective sleeve 52 is slidably connected to an inner sleeve 53, and a second spring 55 is evenly arranged between the inner sleeve 53 and the protective sleeve 52. The outer bottom of the tapered threaded rod 51 is a tapered rod to facilitate insertion into the interior of the sleeve 1, and the outer top is a threaded rod that can be threadedly connected to the inner top of the sleeve 1. The protective sleeve 52 cooperates with the inner sleeve 53 to protect the top of the sleeve 1.

[0028] The inner sleeve 53 can be stored inside the protective sleeve 52, so that when the tapered threaded rod 51 is threaded down, the inner sleeve 53 can still cover the top of the sleeve 1. A plum blossom groove 54 is provided on the top of the protective sleeve 52, and the plum blossom groove 54 is convenient for driving the tapered threaded rod 51 to rotate by a screwdriver or other tools. A groove 12 is provided on the top of the sleeve 1, and the groove 12 is connected to the hose 45. When the inner sleeve 53 is completely sleeved on the top of the sleeve 1, the groove 12 cooperates with the hose 45 to fill the foam filler between the sleeve 1 and the inner sleeve 53.

[0029] In this solution, a hole is firstly punched in the wall, the sleeve 1 is inserted into the wall, and the tapered threaded rod 51 is inserted into the sleeve 1. The outer top of the tapered threaded rod 51 is threadedly connected with the inner top of the sleeve 1 through a thread, and then the tapered threaded rod 51 is rotated to descend. When the tapered threaded rod 51 descends, its outer bottom will conflict with the wedge block 3, and then the expansion sheet 2 will expand from the outside of the sleeve 1, completing the assembly and fixation of the sleeve 1;

[0030] At the same time, when the outer top of the tapered threaded rod 51 is inserted into the inside of the sleeve 1, it will conflict with the push block 43, and then drive the bottle body 42 to move inside the hollow cylinder 41, so that the pressing nozzle 44 and the bottle body 42 will conflict, and then the foam filler inside will be discharged and filled into the gap between the sleeve 1 and the inside of the hole, and the gap between the top of the sleeve 1 and the inner sleeve 53, and then the sleeve 1 will be protected;

[0031] When the expansion mechanism 5 and the sleeve 1 are assembled, the added filling mechanism 4 automatically fills the foam filler between the sleeve 1 and the wall, and between the inner sleeve 53, the hexagram groove 54 and the top of the sleeve 1, and then the sleeve 1, the expansion mechanism 5 and the wall are sealed to prevent the gap between the sleeve 1 and the wall from being corroded by moisture when used for a long time in a humid area, thereby reducing the service life of the sleeve 1 and affecting the fixing effect of the sleeve 1 on the workpiece.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An expansion anchor for construction, comprising: A sleeve (1), an expansion sheet (2), a wedge block (3) and an expansion mechanism (5), wherein the expansion sheet (2) is evenly arranged on the outside of the sleeve (1), the outside of the expansion sheet (2) is connected to the wedge block (3), and the expansion mechanism (5) is threadedly connected to the inside of the sleeve (1), characterized in that: the inside of the sleeve (1) is equipped with a filling mechanism (4), the filling mechanism (4) comprises a hollow cylinder (41), the hollow cylinder (41) is embedded in the inside of the sleeve (1), the inside of the hollow cylinder (41) is evenly arranged with a bottle body (42), the two ends of the outside of the bottle body (42) are connected to a pressing nozzle (44), and the outside of the pressing nozzle (44) is connected to a hose (45).

2. The expansion anchor for construction according to claim 1, characterized in that: The expansion mechanism (5) comprises a tapered threaded rod (51), the top of the tapered threaded rod (51) is connected to a protective sleeve (52), the bottom of the protective sleeve (52) is slidably connected to an inner sleeve (53), and a second spring (55) is evenly arranged between the inner sleeve (53) and the protective sleeve (52).

3. The expansion anchor for construction according to claim 2, characterized in that: A plum blossom groove (54) is formed on the top of the protective cover (52).

4. The expansion anchor for construction according to claim 2, characterized in that: The top of the sleeve (1) is provided with a groove (12), and the groove (12) is adapted to fit the inner sleeve (53).

5. The expansion anchor for construction according to claim 1, characterized in that: The bottom of the sleeve (1) is equipped with a sharp corner (11), and the outside of the sharp corner (11) is polished.

6. The expansion anchor for construction according to claim 1, characterized in that: The outside of the bottle body (42) is connected to a push block (43), and the other end of the bottle body (42) is connected to a first spring (46), and the first spring (46) is connected to the hollow cylinder (41).

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