Metal welding heat preservation nail
The metal welding heat-insulating nail with an anti-retraction device addresses the issue of falling nails and electrical conductivity, providing secure welding and safety by using barbs and insulating layers to prevent nail detachment and electrical contact.
Patent Information
- Application Number
- CN202420692490.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-01-01
- Filing Date
- 2024-04-03
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-04-03
AI Technical Summary
Existing insulation nails used for welding ventilation ducts lack an anti-retraction design, leading to potential falling off and causing safety hazards, and they often conduct electricity with aluminum foil insulation boards, resulting in low welding success rates and safety risks.
A metal welding heat-insulating nail with an anti-retraction device, featuring a nail cap and rod with barbs or an insulating sleeve and triangular thorns, and an insulating layer to prevent contact with aluminum skin, ensuring secure welding and preventing falling.
The anti-retraction device prevents nails from falling off, enhances welding stability, reduces safety risks, and maintains a high welding success rate by isolating electrical contact, ensuring safer and more durable construction.
Smart Images
Figure CN222296661U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a heat-insulating nail, in particular to a metal welding heat-insulating nail. Background Art
[0002] The outside of the ventilation duct on the top of the underground garage is fixed with insulation nails, which are made of rock wool, glass wool, aluminum silicate, etc. The insulation board is made of rock wool, glass wool, aluminum silicate, etc. When welding, the nail cap of the insulation nail is pressed with a welding gun so that the nail rod penetrates the insulation board and contacts the surface of the ventilation duct. At this time, the circuit is turned on, and the contact part between the nail rod and the ventilation duct melts at high temperature to form a welding point, thereby achieving welding fixation. However, the existing insulation nails have no anti-retraction design. Once the welding point cracks, it is easy to fall off the ventilation duct, which can easily injure or stab pedestrians and vehicles. Moreover, taking the aluminum foil rock wool insulation board as an example, about sixty insulation nails are used around each meter of ventilation duct, and there are six thousand insulation nails for a hundred meters of ventilation duct. Even if only 1% of them fall off, the harm cannot be ignored. Summary of the invention
[0003] The utility model discloses a metal welding heat-insulating nail, which has an anti-retraction device. Even if part of welding points are cracked during long-term use, the anti-retraction device can effectively prevent the heat-insulating nail from falling off the heat-insulating plate, thereby solving the problems existing in the prior art.
[0004] The utility model solves the technical problem by adopting the following technical solution: a metal welding heat-insulating nail, which consists of a nail cap and a nail rod, the lower end of the nail rod is connected to the nail cap, the upper end of the nail rod is provided with a tip, and is characterized in that: the nail rod is made of metal, an anti-retraction device is provided on the nail rod, and the nail cap is round.
[0005] The anti-recoil device is a barb, two barbs are respectively arranged on both sides of the nail rod, the tips of the barbs are inclined to point to the nail cap, and the barbs, the nail cap and the nail rod are all made of the same metal material. To further prevent the insulation nail from falling out, the barbs can be increased to multiple. An insulating layer is provided on the side where the nail cap is connected to the nail rod. A convex block is provided in the middle of the insulating layer, the convex block and the insulating layer are made of the same material, the two are made into one body, and the nail rod passes through the convex block. The insulating layer is an insulating fire-resistant material or flame-retardant material. The anti-recoil device is composed of an insulating sleeve and triangular thorns, the insulating sleeve is sleeved on the outer periphery of the nail rod, the length of the insulating sleeve is less than or equal to one-third of the length of the nail rod, the two triangular thorns are respectively arranged side by side on both sides of the insulating sleeve, the insulating sleeve is located above the nail cap, the anti-recoil device and the nail cap are both made of insulating material, and the anti-recoil device and the nail cap are made into one body; a limiter is provided at the lower end of the nail rod, the limiter is located below the nail cap and connected to the nail cap, and the nail rod and the limiter are both made of metal material. The upper end of the insulating sleeve is an oblique section, and the angle between the oblique section and the central axis of the insulating sleeve ranges from degrees to degrees. The triangular thorn is a right triangle, and a through hole is provided on the nail cap. The tip is an inclined surface. The outer periphery of the nail cap is provided with a folded edge.
[0006] In order to make the connection between the nail rod and the anti-retraction device tighter and firmer, the existing steel nail manufacturing process can be used to design a transverse groove at the root of the nail rod. The transverse groove can also be an annular groove, and usually two or three transverse grooves can be set.
[0007] The positive effect of the utility model is that the metal welding heat preservation nail is provided with an anti-retraction device. On the one hand, the anti-retraction device can prevent the heat preservation nail from falling off from the heat preservation board during the construction process, improve work efficiency and reduce construction risks; on the other hand, after the construction is completed, the heat preservation nail is not easy to fall off due to long-term oxidation and erosion in a humid environment, so as to avoid the heat preservation nail falling to the ground and causing harm to pedestrians and vehicles.
[0008] In addition, since the outer surface of the insulation board is mostly provided with an aluminum skin, the insulation nails will be in contact with the aluminum skin, which will cause electrical conductivity, resulting in a low welding success rate, loose welding, and serious cold welding, which will increase the probability of the insulation board or insulation nails falling off in the later stage. To solve this problem, the insulation nails described in the present application are also provided with an insulating layer. The insulating layer can effectively isolate the insulation nails from contacting the aluminum skin, prevent the current from conducting electricity with the aluminum skin of the insulation board, and ensure that the current only passes through the insulation nails directly to the metal surface of the ventilation duct, so that the welding reaction only occurs inside the insulation board, and no sparks are generated outside. It is safer and the welding is more solid. It can also avoid the black circles caused by welding and burning between the insulation nails and the outer surface of the insulation board, and the appearance is more beautiful.
[0009] The utility model also has the advantages of simple structure, low manufacturing cost, convenient construction, firm welding and long service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a structural schematic diagram of the first embodiment of the metal welding heat-insulating nail of the utility model;
[0011] Figure 2 yes Figure 1 Schematic diagram of the three-dimensional structure;
[0012] Figure 3 yes Figure 1 A schematic diagram of a three-dimensional structure from another angle;
[0013] Figure 4 yes Figure 1 AA cross-sectional enlarged structural diagram;
[0014] Figure 5 It is a structural schematic diagram of the second embodiment of the metal welding heat-insulating nail of the utility model;
[0015] Figure 6 yes Figure 5 Schematic diagram of the left view structure;
[0016] Figure 7 yes Figure 5 Schematic diagram of the three-dimensional structure;
[0017] Figure 8 yes Figure 6 Schematic diagram of the BB cross-sectional structure.
[0018] Reference numerals:
[0019] 1 nail cap 10 through hole 11 folded edge
[0020] 2 nail rod 20 tip 21 transverse groove 22 stopper
[0021] 3 anti-retraction device 30 insulating sleeve 31 triangular thorn 32 oblique section
[0022] 4 insulation layer 40 bump
[0023] 5 insulation board 50 aluminum skin DETAILED DESCRIPTION Example 1
[0024] The metal welding heat-insulating nail described in the utility model is as follows Figure 1 As shown, it is composed of a nail cap 1 and a nail rod 2. The lower end of the nail rod 2 is connected to the nail cap 1. The upper end of the nail rod 2 is provided with a tip 20 to facilitate piercing the insulation board 5. The nail rod 2 is made of metal, which is convenient for electric welding. An anti-retreat device 3 is provided on the nail rod 2, and the main structure of the anti-retreat device 3 is a thorn-shaped protrusion. The anti-retreat device 3 can be tightly connected to the insulation board. Even if the welding point is broken, it can also prevent the insulation nail from falling off the insulation board to the greatest extent possible. In order to facilitate processing and construction, the nail cap 1 is designed to be round.
[0025] Specifically, the anti-recoil device 3 may be a barb. Figure 1 As shown, two barbs are respectively arranged on both sides of the nail rod 2, and the tips of the barbs are inclined to point toward the nail cap 1. When the insulation nail penetrates the insulation board, the barbs can effectively hook the rock wool layer to prevent the insulation layer from falling off the insulation board. The barbs, the nail cap 1 and the nail rod 2 can all be made of the same metal material so as to serve as an effective conductive path during welding.
[0026] In order to prevent the insulation nail from contacting the aluminum skin 50 of the insulation board, an insulating layer 4 is provided on the side where the nail cap 1 is connected to the nail rod 2. The insulating layer 4 can effectively prevent the nail cap 1 from contacting the aluminum skin to conduct electricity.
[0027] like Figure 1 and Figure 4As shown, a protrusion 40 is provided in the middle of the insulating layer 4. The protrusion 40 and the insulating layer 4 are made of the same material and are made into one piece. The nail rod 2 passes through the protrusion 40. When the nail rod 2 pierces the insulation board 5, a through hole is formed on the aluminum skin 50; the protrusion 40 wraps the root of the nail rod 2. As the nail cap 1 squeezes the aluminum skin 50, the protrusion 40 can squeeze the aluminum skin 50 around the nail rod 2 into the insulation board, so that the aluminum skin 50 can be kept as far away from the nail rod 2 as possible, thereby further preventing the nail rod 2 from contacting the aluminum skin 50 and ensuring the welding quality.
[0028] The insulating layer 4 can be made of existing insulating fire-resistant materials or flame-retardant materials, but cannot be made of flammable materials such as paper, so as to fundamentally prevent the possibility of fire caused by the insulating layer 4.
[0029] Implementation 2:
[0030] In order to prevent the nail rod 2 from contacting the aluminum skin 50 as much as possible, and also to facilitate processing and manufacturing, as Figure 5 As shown, the anti-retraction device 3 is composed of an insulating sleeve 30 and triangular spikes 31, and the insulating sleeve 30 is sleeved on the outer periphery of the nail rod 2. The length of the insulating sleeve 30 is less than or equal to one third of the length of the nail rod 2. Two triangular spikes 31 are arranged side by side on both sides of the insulating sleeve 30, and the insulating sleeve 30 is located above the nail cap 1. The anti-retraction device 3 and the nail cap 1 can both be made of insulating materials. The anti-retraction device 3 and the nail cap 1 can be made into one piece by a mold, and its processing equipment and mold can be similar to the existing equipment and mold for processing plastic expansion plugs, so as to improve production efficiency and reduce production costs. A limiter 22 is provided at the lower end of the nail rod 2, and the limiter 22 is located below the nail cap 1 and connected to the nail cap 1. The nail rod 2 and the limiter 22 are both made of metal materials to ensure that a conductive path is formed during welding. The limiter 22 can be disc-shaped or cross-bar-shaped, so as to be able to connect the nail rod 2 to the nail cap 1.
[0031] To minimize the resistance to puncture, Figure 7 As shown, the upper end of the insulating sleeve 30 is an oblique section 32. The angle between the oblique section 32 and the central axis of the insulating sleeve 30 is in the range of 30 to 45 degrees. Since the size of the nail rod 2 is usually: a diameter of 1 mm to 1.3 mm, and a length of 55 mm to 70 mm, the diameter of the insulating sleeve 30 is usually 3 mm to 4 mm. The provision of the insulating sleeve 30 can also increase the strength of the nail rod 2, and can effectively prevent the insulation nail from bending when piercing.
[0032] Furthermore, the triangular thorn 31 can be a right triangle. Since the triangular thorn 31 is made of non-metallic material, the right triangle can effectively increase the strength of the triangular thorn 31 and reduce the processing cost. The nail cap 1 can also be provided with a through hole 10 to make the heat preservation nail easy to take and have the advantage of light weight.
[0033] Furthermore, in order to reduce the difficulty and cost of processing, the tip 20 may be a bevel.
[0034] Furthermore, the outer periphery of the nail cap 1 may be provided with a folded edge 11. By providing the edge 11 of the nail cap, the probability of current conduction caused by the contact surface and edge wear between the insulation nail and the insulation board 5 can be further reduced, and the insulation board can be prevented from being separated from the insulation nail and falling off due to the edge wear in the later stage; at the same time, 11 can also facilitate the cooperation between the insulation nail and the welding gun, so that the pressure applied by the welding gun acts more effectively on the insulation nail, making the construction more labor-saving and efficient.
[0035] The technical solution of the present invention is not limited to the scope of the embodiments described in the present invention. The technical contents not described in detail in the present invention are all known technologies.
Claims
1. A metal welding heat-insulating nail, which is composed of a nail cap (1) and a nail rod (2), wherein the lower end of the nail rod (2) is connected to the nail cap (1), and the upper end of the nail rod (2) is provided with a tip (20), characterized in that: The nail rod (2) is made of metal, an anti-retraction device (3) is provided on the nail rod (2), and the nail cap (1) is circular; the anti-retraction device (3) is a barb, and two barbs are respectively provided on both sides of the nail rod (2), and the tips of the barbs are inclined to point toward the nail cap (1), and the barbs, the nail cap (1) and the nail rod (2) are all made of the same metal material; an insulating layer (4) is provided on the side where the nail cap (1) is connected to the nail rod (2).
2. The metal welding heat-insulating nail according to claim 1, characterized in that: A convex block (40) is provided in the middle of the insulating layer (4); the convex block (40) and the insulating layer (4) are made of the same material and are integrally formed; the nail rod (2) passes through the convex block (40).
3. The metal welding heat-insulating nail according to claim 1, characterized in that: The insulating layer (4) is an insulating fire-resistant material or a flame-retardant material.
4. The metal welding heat-insulating nail according to claim 1, characterized in that: The anti-retraction device (3) is composed of an insulating sleeve (30) and triangular spikes (31). The insulating sleeve (30) is sleeved on the outer periphery of the nail rod (2). The length of the insulating sleeve (30) is less than or equal to one third of the length of the nail rod (2). Two triangular spikes (31) are respectively arranged side by side on both sides of the insulating sleeve (30). The insulating sleeve (30) is located above the nail cap (1). The anti-retraction device (3) and the nail cap (1) are both made of insulating material. The anti-retraction device (3) and the nail cap (1) are made into one piece. A limiting piece (22) is provided at the lower end of the nail rod (2). The limiting piece (22) is located below the nail cap (1) and connected to the nail cap (1). The nail rod (2) and the limiting piece (22) are both made of metal material.
5. The metal welding heat-insulating nail according to claim 4, characterized in that: The upper end of the insulating sleeve (30) is an oblique section (32), and the angle between the oblique section (32) and the central axis of the insulating sleeve (30) is in the range of 30 degrees to 45 degrees.
6. The metal welding heat-insulating nail according to claim 4, characterized in that: The triangular thorn (31) is a right triangle, and a through opening (10) is provided on the nail cap (1).
7. The metal welding heat-insulating nail according to claim 4, characterized in that: The tip (20) is an inclined surface.
8. The metal welding heat-insulating nail according to any one of claims 1 to 7, characterized in that: The outer periphery of the nail cap (1) is provided with a folded edge (11).