Efficient anti-seismic fastening shoot nail for building outer wall

Abstract

The utility model relates to the field of constructional engineering, in particular to an efficient anti-seismic fastening shoot nail for a building outer wall, which comprises a nut, a screw, a top block and an inserting rod, the screw is fixed on one side of the nut, the screw is divided into two sections, the outer wall of the upper half section of the screw is provided with a first thread, and the lower half section of the screw is provided with a second thread. The thread pitch of the first thread is half of the thread pitch of the second thread, a first mounting groove is formed in the middle of the screw, an insertion rod is inserted into the first mounting groove, and ejector blocks which are symmetrically designed are arranged on the outer wall of the screw. According to the device, the overall outer wall fastening effect can be achieved through the ejector block which can eject outwards after the screw is inserted in a matched mode through the threads with the two screw pitches, and the problem that an existing building outer wall screw is poor in fastening effect, and looseness is likely to occur under some vibrations is solved.

Description

Technical Field

[0001] This utility model relates to the field of building engineering, and in particular to a high-efficiency earthquake-resistant fastening nail for building exterior walls. Background Technology

[0002] External wall fastening screws are mainly used to firmly fix building exterior wall materials (such as insulation boards, decorative panels, metal curtain walls, etc.) to the base layer (concrete, steel structure or wooden frame) to ensure their stability under wind pressure, vibration and temperature difference changes.

[0003] A search revealed patent publication number CN203297295U, which discloses a non-detachable screw. This screw includes a screw head and a screw tail. The key feature is that the lower end of the screw head has a square washer with a wavy bottom surface. This allows the square washer to be directly fixed to the lower end of the screw, eliminating the need to find a suitable washer during assembly. Furthermore, the washer is firmly fixed to the screw and will not fall off. This invention provides a non-detachable screw with a simple structure, low cost, good clamping line, and a non-detachable washer, significantly reducing material waste due to loss and saving manpower and time. It is suitable for widespread application.

[0004] While existing technologies can achieve a certain degree of fastening effect on exterior wall components, they have drawbacks: the fastening effect of existing building exterior wall screws is not good, and they are prone to loosening under some vibrations. In view of this, we propose a high-efficiency seismic fastening nail for building exterior walls, which solves the above problems. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a high-efficiency earthquake-resistant fastening nail for building exterior walls.

[0006] The technical solution of this utility model: a high-efficiency earthquake-resistant fastening nail for building exterior walls, including a nut, a screw, a top block and a rod. The screw is fixed on one side of the nut. The screw is divided into two sections. The upper half of the screw has a thread I on its outer wall, and the lower half of the screw has a thread II. The pitch of the thread I is half the pitch of the thread II. The screw has an installation groove I in the middle, and a rod is inserted into the installation groove I. The screw has a symmetrically designed top block on its outer wall.

[0007] When using this device, it can be directly inserted into the exterior wall and then operated using a standard rotating screw. Initially, thread two contacts the exterior wall during rotation. Since the pitch of thread two is greater than that of thread one, the insertion speed is faster. After inserting a certain distance, the thread initially contacts the exterior wall, slowing the insertion speed but becoming more stable. Once the screw reaches the bottom position, an external rivet is used to hold the insertion rod in place, and then it is driven in further with force. The insertion rod moves downward a short distance, and the limiting block and limiting groove cooperate to fix the position of the insertion rod. The limiting ring pushes the top block outward, inserting it into the exterior wall to stabilize the screw's position. This device utilizes the combination of two types of threads and the top block to achieve a highly efficient and earthquake-resistant exterior wall positioning effect, making it highly practical.

[0008] Preferably, a washer is fixed to the lower end of the nut. The washer has a three-layer design and is made of thermoplastic polyurethane. The washer can effectively achieve the connection between the nut and the exterior wall. Thermoplastic polyurethane can soften at 40 to 80 degrees Celsius, effectively ensuring the connection between the nut and the exterior wall and preventing loosening.

[0009] Preferably, the nut has a cross-shaped cutting edge in the middle, and a groove at the bottom of the cross-shaped cutting edge. The groove is connected to the upper end of the mounting groove. The upper end of the insert rod is designed as a protruding disc, and the disc has the same inner diameter as the groove. The lower end of the disc is spaced from the bottom of the groove. The design of the disc and the groove can ensure that the insert rod will not move out of the mounting groove.

[0010] Preferably, the screw has a second mounting groove inside, and a limit block is inserted into the second mounting groove. The bottom of the limit block and the bottom of the second mounting groove are provided with a second spring. Under the action of the second spring, the limit block will be inserted into the limit groove to ensure that the rod will not move upward after moving downward.

[0011] Preferably, the outer wall of the insertion rod is provided with a limiting groove, and the limiting groove is inserted into the limiting block.

[0012] Preferably, a spring is fixed between the mounting groove and the insert rod. When the upper end of the insert rod is at the bottom, the limiting block and the limiting groove are just inserted into each other. The spring can ensure that the disc is at the highest point of the sinking groove when the insert rod is not hammered in.

[0013] Preferably, the outer wall of the insertion rod is provided with limiting rings arranged in a linear array. The limiting rings push the top block open to both sides. When the limiting rings move downward, they can push the top block out to both sides to achieve the reinforcement effect of the screw. When the top block does not move, it is kept inside the track by damping material, which will not affect the initial screwing in.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] I. This utility model can achieve a dual-stage screw insertion effect by utilizing the uniquely designed thread one and thread two, making the screw more secure after screwing in and less prone to loosening. In addition, the hot melt plastic emulsifies and adheres in the hot summer environment, providing a tighter screw.

[0016] Second, based on the first beneficial effect, the screw has a top block inside. After the screw is inserted into the outer wall, the top block can be inserted into the outer wall in conjunction with the insertion rod to ensure that the screw will not easily rotate, thus achieving a more stable fastening effect.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0019] Figure 2 This is a front view schematic diagram of the present invention;

[0020] Figure 3 This is a top view of the present invention;

[0021] Figure 4 For the present utility model Figure 2 Enlarged schematic diagram of structure A in the middle.

[0022] Figure label:

[0023] 1. Nut; 2. Washer; 3. Top block; 4. Screw; 5. Thread 2; 6. Thread 1; 7. Insert rod; 8. Countersunk groove; 9. Mounting groove 1; 10. Spring 1; 11. Cross blade; 12. Limiting groove; 13. Limiting block; 14. Spring 2; 15. Mounting groove 2; 16. Limiting ring. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0028] Example 1

[0029] Please see Figures 1-4 As shown, this embodiment is a high-efficiency seismic fastening nail for building exterior walls, including a nut 1, a screw 4, a top block 3, and a rod 7. The screw 4 is fixed on one side of the nut 1. The screw 4 is divided into two sections. The upper half of the screw 4 has a thread 6 on its outer wall, and the lower half of the screw 4 has a thread 5. The pitch of the thread 6 is half of the pitch of the thread 5. The screw 4 has an installation groove 9 in the middle, and the rod 7 is inserted into the installation groove 9. The screw 4 has a symmetrically designed top block 3 on its outer wall.

[0030] When using this device, it can be directly inserted into the exterior wall. It is then used by rotating the screw 4. Initially, thread 2 5 contacts the exterior wall. Since the pitch of thread 2 5 is greater than that of thread 1 6, the insertion speed is faster. After a certain distance, thread 1 6 begins to contact the exterior wall, slowing the insertion speed but making it more stable. Once the screw reaches the bottom position, the external rivet is used to hold the insertion rod 7 in place, and it is then driven in further. The insertion rod 7 moves downward a short distance, and the limiting block 13 and limiting groove 12 cooperate to fix the position of the insertion rod 7. The limiting ring 16 pushes the top block 3 outwards into the exterior wall, reinforcing the stable position of the screw 4. This device utilizes the combination of two types of threads and the top block 3 to achieve a highly efficient and earthquake-resistant exterior wall positioning effect, making it highly practical.

[0031] Example 2

[0032] Please see Figures 1-4 As shown, this embodiment, based on embodiment 1, further includes: a washer 2 fixed to the lower end of the nut 1. The washer 2 has a three-layer design and is made of thermoplastic polyurethane. The washer 2 can effectively achieve the connection between the nut 1 and the exterior wall. The thermoplastic polyurethane can soften at 40 to 80 degrees, effectively ensuring the connection between the nut 1 and the exterior wall and preventing loosening.

[0033] The nut 1 has a cross-shaped cutting edge 11 in the middle, and a recessed groove 8 at the bottom of the cross-shaped cutting edge 11. The recessed groove 8 is connected to the upper end of the mounting groove 9. The upper end of the insertion rod 7 is designed as a protruding disc, and the inner diameter of the disc is equal to that of the recessed groove 8. There is a gap between the lower end of the disc and the bottom of the recessed groove 8. The design of the disc and the recessed groove 8 can ensure that the insertion rod 7 will not move out of the mounting groove 9.

[0034] The screw 4 has a second mounting groove 15 inside, and a limit block 13 is inserted into the second mounting groove 15. The bottom of the limit block 13 and the bottom of the second mounting groove 15 are provided with a second spring 14. Under the action of the second spring 14, the limit block 13 will be inserted into the limit groove 12 to ensure that the rod 7 will not move upward after moving downward.

[0035] The outer wall of the insertion rod 7 is provided with a limiting groove 12, which is inserted into the limiting block 13.

[0036] A spring 10 is fixed between the mounting groove 9 and the insertion rod 7. When the upper disc of the insertion rod 7 is at the bottom, the limiting block 13 and the limiting groove 12 are just inserted into each other. The spring 10 can ensure that the disc is at the highest point of the sinking groove 8 when the insertion rod 7 is not hammered in.

[0037] The outer wall of the insertion rod 7 is provided with limiting rings 16 arranged in a linear array. The limiting rings 16 push the top block 3 to both sides. When the limiting rings 16 move downward, they can push the top block 3 to both sides to achieve the reinforcement effect of the screw 4. When the top block 3 is not moving, it is kept inside the track by the damping material, which will not affect the initial screwing in of the screw 4.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-efficiency anti-seismic fastening nail for building outer walls, comprising a nut (1), a screw (4), a top block (3) and a plug rod (7), characterized in that: Said nut (1) one side is fixed with screw (4), said screw (4) is divided into two sections, the upper half of the outer wall of said screw (4) is provided with thread one (6), the lower half of said screw (4) is provided with thread two (5), the pitch of said thread one (6) is half of the pitch of thread two (5), the middle of said screw (4) is provided with mounting groove one (9), said mounting groove one (9) is inserted with plug rod (7), the outer wall of said screw (4) is provided with symmetrically designed top block (3).

2. The high-efficiency anti-seismic fastening nail for building outer wall according to claim 1, characterized in that: Said nut (1) lower end is fixed with gasket (2), said gasket (2) is designed as three layers, the material of said gasket (2) is thermoplastic polyurethane.

3. The high-efficiency anti-seismic fastening nail for building outer wall according to claim 1, characterized in that: The middle of said nut (1) is provided with cross knife edge (11), the bottom of said cross knife edge (11) is provided with sunken groove (8), said sunken groove (8) is communicated with the upper end of mounting groove one (9), the upper end of said plug rod (7) is designed as protruding disc, and the disc is equal in diameter with the sunken groove (8), and the disc lower end and the bottom of sunken groove (8) are provided with spacing.

4. The high-efficiency anti-seismic fastening nail for building outer wall according to claim 1, characterized in that: The inside of said screw (4) is provided with mounting groove two (15), said mounting groove two (15) is inserted with limiting block (13), the bottom of said limiting block (13) and the bottom of mounting groove two (15) are provided with spring two (14).

5. The high-efficiency anti-seismic fastening nail for building outer wall according to claim 1, characterized in that: The outer wall of said plug rod (7) is provided with limiting groove (12), said limiting groove (12) is inserted with limiting block (13).

6. The high-efficiency anti-seismic fastening nail for building outer wall according to claim 3, characterized in that: Said mounting groove one (9) and plug rod (7) are fixed with spring one (10), when the disc of the upper end of said plug rod (7) is located at the bottom, the limiting block (13) and limiting groove (12) are just inserted with each other.

7. The high-efficiency anti-seismic fastening nail for building outer wall according to claim 1, characterized in that: The outer wall of said plug rod (7) is provided with limiting ring (16) which is linearly arrayed, said limiting ring (16) pushes the top block (3) to both sides.

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