Reinforcing bolt for repairing cracks of outer wall

Abstract

The utility model relates to the technical field of outer wall crack repair, in particular to a reinforcing bolt for outer wall crack repair, which comprises a sleeve, a fixing disc, an outer expansion barb and an inner expansion nail, the right end of the sleeve is fixedly connected with the fixing disc, a communicating hole is formed between the sleeve and the fixing disc, the communicating hole is used for driving the inner expansion nail, the left side of the sleeve is fixedly connected with a fancy expansion pipe, the outer wall of the sleeve is provided with a mounting hole, and the outer expansion barb is fixedly connected in the mounting hole. And the tail ends of the external expanding barbs expand towards one side far away from the axis of the sleeve. When the bolt disclosed by the utility model is used for repairing cracks of an outer wall and the sleeve is driven into an internal expansion nail, the external expansion barbs on the periphery of the sleeve are well connected with a foundation through expansion, when the internal expansion nail is driven into the fixing disc, the fixing disc also plays a role in fixing and excessively deep blocking, and a hole is filled in subsequent construction, so that the repairing firmness is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of exterior wall crack repair, in particular to a reinforcement bolt for exterior wall crack repair. Background Art

[0002] During the use of the house, we will pay special attention to the interior decoration and try not to damage it, but the exterior wall is the one we are most likely to ignore. After years of use, cracks will inevitably appear on the exterior wall. The cracks in the wall will cause subsequent hazards such as leakage and falling off, which will not only cause harm to our lives, but also affect the overall appearance of the house.

[0003] Traditional wall repair generally adopts the following methods:

[0004] (1) All walls are removed and then a general exterior wall construction plan is implemented. This is time-consuming, material-intensive, and costly, and leaves behind a large amount of construction waste.

[0005] (2) Local repair. After removing the obvious cracks, loose parts and falling off, fill and level them with cement mortar or anti-cracking mortar. If the unrepaired parts fall off again next year, they will be repaired again. Now many buildings in large and medium-sized cities are like patches, deep in some places and shallow in others, which seriously affects the beautification of urban construction and poses a hidden danger of unsafe living environment.

[0006] (3) Apply a layer of waterproof glue to the entire surface. This is only a temporary solution and will cause the problem to reappear after two or three years. It is a waste of time and effort.

[0007] To this end, the solution of repairing the wall by bolting it requires the use of special bolts. Utility Model Content

[0008] The utility model aims to provide a reinforcement bolt for repairing cracks in an exterior wall, so as to solve the problems raised in the above-mentioned background technology.

[0009] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0010] A reinforcing bolt for repairing cracks in an exterior wall comprises: a sleeve, a fixing plate, an external expansion barb and an internal expansion nail; the right end of the sleeve is fixedly connected to the fixing plate, and a communicating hole is provided between the sleeve and the fixing plate, the communicating hole is used to drive the internal expansion nail, a fancy expansion tube is fixedly connected to the left side of the sleeve, an installation hole is provided on the outer wall of the sleeve, and the external expansion barb is fixedly connected in the installation hole, and the end of the external expansion barb expands to a side away from the axis of the sleeve.

[0011] Preferably, the end of the internal expansion nail is conical and has a diameter of . mm.

[0012] Preferably, there are four mounting holes, which are arranged in two groups and spaced apart on the outer wall of the sleeve, and each group of mounting holes is symmetrically arranged.

[0013] Preferably, the outer wall of the fancy expansion tube is provided with a groove, and there are two grooves, which are symmetrically arranged on the outer wall of the fancy expansion tube.

[0014] Preferably, the fancy expansion tube has an elliptical cross-section and is integrally constructed with the casing.

[0015] Preferably, an annular groove is provided at the bottom of the fixing plate, and the cross section of the annular groove is arc-shaped.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] This bolt is used in the repair of cracks in the exterior wall. The inner nail is driven in to expand the outer barb, and the entire surface of the sleeve is more firmly fixed to the various layers of the wall. The bolt is fixed through the conical front end of the inner nail, and mortar is filled into the empty tube to perfectly combine the various layers of the wall, forming the integrity of the wall and making the repaired wall strong and durable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the side structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal expansion nail structure of the utility model.

[0021] In the figure: 1. casing; 2. fixing plate; 3. external expansion barb; 4. internal expansion nail; 5. mounting hole; 6. groove; 7. fancy expansion tube; 8. annular groove. 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] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "setting" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0026] like Figure 1-3 As shown, a reinforcing bolt for repairing cracks in an exterior wall comprises: a sleeve 1, a fixing plate 2, an external expansion barb 3 and an internal expansion nail 4; the right end of the sleeve 1 is fixedly connected to the fixing plate 2 and cast as one piece, and the fixing plate 2 is more firmly fixed, and a connecting hole is provided between the sleeve 1 and the fixing plate 2, and the connecting hole is used to drive the internal expansion nail 4, and a fancy expansion tube 7 is fixedly connected to the left side of the sleeve 1, and a mounting hole 5 is provided on the outer wall of the sleeve 1, and the external expansion barb 3 is fixedly connected in the mounting hole 5, and the end of the external expansion barb 3 expands to a side away from the axis of the sleeve 1, and the end of the internal expansion nail 4 is conically arranged, and the diameter is 4.8 mm, and the front part thereof is a conical structure, and when the internal expansion nail 4 is driven in, the bonding force with the wall surface is more firmly, and the overall length of the bolt is 80 mm, wherein the diameter of the fixing plate 2 is 20 mm.

[0027] There are four mounting holes 5 , which are arranged in two groups and spaced apart on the outer wall of the sleeve 1 , and each group of mounting holes 5 is symmetrically arranged.

[0028] The outer wall of the fancy expansion tube 7 is provided with grooves 6 , and there are two grooves 6 symmetrically arranged on the outer wall of the fancy expansion tube 7 .

[0029] The cross section of the fancy expansion tube 7 is elliptical and is integrally constructed with the sleeve 1. After the internal expansion nail 4 is driven in, it will expand, so that the entire surface of the sleeve 1 is more firmly fixed to the wall, avoiding looseness caused by punching errors, so that the fancy expansion tube 7 is fixed in the wall. An annular groove 8 is provided at the bottom of the fixing plate 2, and the cross section of the annular groove 8 is arc-shaped.

[0030] When in use, holes are drilled on the wall according to actual requirements, about 4-5 holes / ㎡; after cleaning the holes, the casing 1 is inserted, and the inner expansion nails 4 are driven in with a special tool, while the outer expansion barbs 3 will fix the casing when driven in, and finally the holes are filled with mortar.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A reinforcement bolt for repairing cracks in an exterior wall, characterized in that: include: A casing (1), a fixed disk (2), an external expansion barb (3) and an internal expansion nail (4); the right end of the casing (1) is fixedly connected to the fixed disk (2), and a connecting hole is provided between the casing (1) and the fixed disk (2), and the connecting hole is used to drive the internal expansion nail (4); the left side of the casing (1) is fixedly connected to a fancy expansion tube (7); the outer wall of the casing (1) is provided with a mounting hole (5), and the external expansion barb (3) is fixedly connected in the mounting hole (5), and the end of the external expansion barb (3) expands to a side away from the axis of the casing (1).

2. The reinforcement bolt for repairing cracks in an exterior wall according to claim 1, characterized in that: The end of the inner expansion nail (4) is arranged in a conical shape and has a diameter of 4.8 mm.

3. The reinforcement bolt for repairing cracks in an exterior wall according to claim 1, characterized in that: The number of the mounting holes (5) is four, and the four mounting holes (5) are in two groups and are arranged at intervals on the outer wall of the sleeve (1), and each group of mounting holes (5) is symmetrically arranged.

4. The reinforcement bolt for repairing cracks in an exterior wall according to claim 1, characterized in that: The outer wall of the fancy expansion tube (7) is provided with a groove (6), and there are two grooves (6) which are symmetrically arranged on the outer wall of the fancy expansion tube (7).

5. The reinforcement bolt for repairing cracks in an exterior wall according to claim 1, characterized in that: The fancy expansion tube (7) has an elliptical cross section and is integrally constructed with the casing (1).

6. The reinforcement bolt for repairing cracks in an exterior wall according to claim 1, characterized in that: An annular groove (8) is provided at the bottom of the fixing plate (2), and the cross section of the annular groove (8) is arc-shaped.

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