Stud tip protection device

By designing a tip protection device for the strike pins, the problem of short strike pins being difficult to bend safely was solved, thus achieving safety protection for construction workers and efficient installation of insulation materials.

CN120889807APending Publication Date: 2025-11-04SHANGHAI WAIGAOQIAO SHIP BUILDING CO LTD
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Patent Information

Application Number
CN202510971426.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-15
Publication Date
2025-11-04

AI Technical Summary

Technical Problem

During shipbuilding, the tips of short-specification studs are difficult to bend and reset safely by manual means, leading to mechanical damage and residual stress, which affects the installation quality of insulation materials and the safety of construction personnel.

Method used

Design a safety device for the tip of a strike plate, including a protective sleeve that secures the strike plate via a threaded connection to prevent direct bending operations. The device uses rubber material and rigid components to protect the tip of the strike plate from punctures and mechanical damage.

Benefits of technology

It effectively protects construction workers from cuts, improves work efficiency, avoids changes in nail material, and ensures the installation quality of insulation materials.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the field of shipbuilding technical equipment, in particular to a stud tip protection device which comprises a protection sleeve, an insertion hole is formed in the protection sleeve, one end of the insertion hole is communicated with the side wall of the protection sleeve, and the insertion hole is used for containing the tip of a stud. And the length of the insertion hole is greater than that of the tip part of the touch nail. The touch nail has the advantages that the tip end of the touch nail is protected, and the situation that constructors are punctured is reduced.
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Description

Technical Field

[0001] This application relates to the field of shipbuilding technology and equipment, and in particular to a protection device for the tip of a stud. Background Technology

[0002] In the insulation installation process of shipbuilding, stud welding, as a fundamental fixing process, directly affects the quality of subsequent insulation material installation. Current industry standard procedures require that a large number of studs be pre-welded to the steel structure surfaces such as bulkheads, decks, and ribs during the hull section construction phase. The exposed stud ends typically have sharp geometric features, posing a continuous safety risk in the high-density working environment of confined compartments.

[0003] To reduce occupational injury risks, mainstream shipyards generally adopt a pre-bending protection scheme for perforated nails: during the gap between welding and insulation installation, the tip of the perforated nail is manually bent at approximately 90°, changing it from a vertical position to a temporary safe position parallel to the bulkhead. This physical deformation effectively eliminates the spatial protrusion of the sharp end, reducing the nail height to within the safe threshold. Once the insulation installation phase begins, the perforated nail is then reversed to return to a vertical position to meet the mechanical requirements for securing the insulation material.

[0004] Regarding the aforementioned technologies, the inventors believe that for standard studs of considerable length, the leverage effect allows construction workers to directly perform bending and repositioning operations manually. However, when dealing with short studs, the limited lever arm length makes it difficult to apply sufficient torque manually. Workers must rely on auxiliary tools such as pipe wrenches and stud benders to perform plastic deformation, which will produce two technical defects: First, the tool clamping part will inevitably cause mechanical damage to the stud surface, destroying the original galvanized anti-corrosion layer; second, repeated plastic deformation will induce lattice slip within the metal, forming uncontrollable residual stress at the stud root. Summary of the Invention

[0005] In order to protect the tip of the stud and reduce the risk of puncture injuries to construction workers, this application provides a stud tip protection device.

[0006] This application provides a pin tip protection device, which adopts the following technical solution:

[0007] A stud tip protection device includes a protective sleeve with an insertion hole inside. One end of the insertion hole communicates with the side wall of the protective sleeve. The insertion hole is used to accommodate the tip of the stud, and the length of the insertion hole is greater than the length of the tip of the stud.

[0008] Optionally, the protective sleeve is provided with a threaded section on the inner sidewall of the insertion hole, and the threaded section is threadedly connected to the outer sidewall of the stud.

[0009] Optionally, the threaded section may at least cover a portion of the insertion hole.

[0010] Optionally, a rigid part is fixedly connected to the inner wall of the protective sleeve at the end of the insertion hole. The rigid part is opposite to the tip of the stud, and the rigid part separates the end of the insertion hole from the end of the protective sleeve where the insertion hole is not opened.

[0011] Optionally, the protective sleeve is made of rubber.

[0012] Optionally, the diameter of the insertion hole is not greater than the outer diameter of the pin.

[0013] Optionally, the protective sleeve has an vent hole inside, one end of which is connected to the insertion hole, and the other end of which is connected to the outer wall of the protective sleeve.

[0014] Optionally, the end of the vent hole that communicates with the insertion hole is located at the protective head end of the insertion hole near the protective sleeve.

[0015] Optionally, the protective sleeve has an inclined notch at its protective tail end, which is inclined from the side near the protective tail end to the side near the protective head end toward the side near the insertion hole axis.

[0016] Optionally, the protective head end of the protective sleeve is red.

[0017] In summary, this application includes at least one of the following beneficial technical effects:

[0018] 1. By safely encasing the tip of the stud, the risk of injury to construction workers is fundamentally eliminated. Secondly, the design of this device bypasses the cumbersome steps of bending and re-bending the stud in traditional operations, reducing unnecessary time consumption and improving work efficiency.

[0019] 2. The traditional method of bending and then straightening the rivets often causes subtle changes in the rivet material, affecting its original hardness and straightness, which in turn affects the subsequent application of cotton. This application completely avoids these problems by directly protecting the rivets without bending them. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a nail tip protection device in an embodiment of this application.

[0021] Figure 2 This is a cross-sectional view of a nail tip protection device according to an embodiment of this application.

[0022] Explanation of reference numerals in the attached drawings: 1. Protective sleeve; 11. Insertion hole; 12. Protective tail end; 13. Protective head end; 14. Inclined notch; 2. Plunger. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many 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 different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0025] In the insulation installation process of shipbuilding, stud welding, as a fundamental fixing process, directly affects the quality of subsequent insulation material installation. Current industry standard procedures require that a large number of studs be pre-welded to the steel structure surfaces such as bulkheads, decks, and ribs during the hull section construction phase. The exposed stud ends typically have sharp geometric features, posing a continuous safety risk in the high-density working environment of confined compartments.

[0026] To reduce occupational injury risks, mainstream shipyards generally adopt a pre-bending protection scheme for perforated nails: during the gap between welding and insulation installation, the tip of the perforated nail is manually bent at approximately 90°, changing it from a vertical position to a temporary safe position parallel to the bulkhead. This physical deformation effectively eliminates the spatial protrusion of the sharp end, reducing the nail height to within the safe threshold. Once the insulation installation phase begins, the perforated nail is then reversed to return to a vertical position to meet the mechanical requirements for securing the insulation material.

[0027] Regarding the aforementioned technologies, the inventors believe that for standard studs of considerable length, the leverage effect allows construction workers to directly perform bending and repositioning operations manually. However, when dealing with short studs, the limited lever arm length makes it difficult to apply sufficient torque manually. Workers must rely on auxiliary tools such as pipe wrenches and stud benders to perform plastic deformation, which will produce two technical defects: First, the tool clamping part will inevitably cause mechanical damage to the stud surface, destroying the original galvanized anti-corrosion layer; second, repeated plastic deformation will induce lattice slip within the metal, forming uncontrollable residual stress at the stud root.

[0028] In order to protect the tip of the stud and reduce the risk of puncture injuries to construction workers, this application provides a stud tip protection device.

[0029] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0030] This application discloses a nail tip protection device. (Refer to...) Figure 1 , Figure 2 A tip protection device for a stud 2 includes a protective sleeve 1. An insertion hole 11 is provided inside the protective sleeve 1. One end of the insertion hole 11 is located inside the protective sleeve 1, and the other end of the insertion hole 11 is in communication with the end side wall of the protective sleeve 1, so that the inside of the insertion hole 11 is in communication with the outside.

[0031] The protective sleeve 1 has an insertion hole 11 at one end, which is the protective tail end 12 of the protective sleeve 1. The protective head end 13 of the protective sleeve 1 is away from the protective tail end 12. The end of the stud 2 extends from the protective tail end 12 of the protective sleeve 1 into the interior of the insertion hole 11, and the protective head end 13 is used to cover the tip of the stud 2.

[0032] The protective sleeve 1 has an inclined notch 14 at one end near the protective tail end 12. The inclined notch 14 is connected to the insertion hole 11 and is a frustum-shaped hole. The inclined notch 14 and the insertion hole 11 are coaxially arranged, and the side wall of the inclined notch 14 is inclined. It is gradually inclined towards the side near the central axis of the insertion hole 11 from the end near the protective tail end 12 to the end near the protective head end 13, so that the inner diameter of the inclined notch 14 gradually decreases, and the minimum inner diameter of the inclined notch 14 is the same as the inner diameter of the insertion hole 11.

[0033] A threaded section is provided on the inner side wall of the protective sleeve 1 at the position relative to the insertion hole 11. The threaded section is used to connect with the thread on the outer side wall of the stud 2, so that the stud 2 can be fixed inside the protective sleeve 1 by the thread on its outer side wall, and the protective sleeve 1 is reduced from falling off during use.

[0034] In some embodiments, the threaded section of the protective sleeve 1 at least partially covers the sidewall of the insertion hole 11, and in other embodiments, the threaded end of the protective sleeve 1 completely covers the sidewall of the insertion hole 11.

[0035] In some embodiments, the protective sleeve 1 is made of rubber, and in a specific embodiment, the protective sleeve 1 may be made of flame-retardant silicone rubber. The diameter of the insertion hole 11 is not greater than the outer diameter of the stud 2. In a specific embodiment, the diameter of the insertion hole 11 may be equal to or less than the outer diameter of the stud 2, thereby improving the sealing connection strength between the protective sleeve 1 and the stud 2 and reducing the possibility of the protective sleeve 1 falling off from the outer wall of the stud 2.

[0036] The protective sleeve 1 also has an vent hole inside. One end of the vent hole is connected to the insertion hole 11, and the other end is connected to the outer wall of the protective sleeve 1. This vent hole connects the inside of the insertion hole 11 to the outside. Therefore, when the stud 2 is inserted into the insertion hole 11 from its end, the air inside the insertion hole 11 can be discharged to the outside through the vent hole, reducing insertion difficulties caused by air pressure inside the insertion hole 11.

[0037] In some embodiments, the vent hole is located on the side of the insertion hole 11 that is close to the protective head end 13, which reduces the possibility of the vent hole being blocked by the stud 2 extending into the insertion hole 11, and allows the gas inside the insertion hole 11 to be discharged better.

[0038] In some embodiments, a rigid portion is provided inside the protective sleeve 1 on the side of the insertion hole 11 near the protective head end 13. The rigid portion is fixedly connected to the protective sleeve 1 and is made of a rigid material. In specific embodiments, the rigid portion can be made of iron or steel. The rigid portion covers the end of the stud 2 near the protective head end 13, thereby separating the end of the insertion hole 11 from the protected end of the protective sleeve 1, reducing the possibility of the stud 2 tip piercing the protective sleeve 1 during a collision.

[0039] The protective head end 13 of the protective sleeve 1 is also covered with red paint to provide a clear reminder of the protective sleeve 1.

[0040] In this application, the term "multiple" refers to at least two or more, unless otherwise expressly defined. The terms "installed," "connected," "linked," and "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "linked" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0041] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A safety device for protecting the tip of a nail, characterized in that: It includes a protective sleeve (1), and the inside of the protective sleeve (1) is provided with an insertion hole (11). One end of the insertion hole (11) is connected to the side wall of the protective sleeve (1). The insertion hole (11) is used to accommodate the tip of the stud (2). The length of the insertion hole (11) is greater than the length of the tip of the stud (2).

2. The stud tip protection device according to claim 1, characterized in that: The protective sleeve (1) is provided with a threaded section on the inner side wall of the insertion hole (11), and the threaded section is threadedly connected to the outer side wall of the stud (2).

3. The stud tip protection device according to claim 2, characterized in that: The threaded section at least covers a portion of the insertion hole (11).

4. The stud tip protection device according to claim 1, characterized in that: The inner wall of the protective sleeve (1) is fixedly connected to a rigid part at the end of the insertion hole (11). The rigid part is opposite to the tip of the stud (2). The rigid part separates the end of the insertion hole (11) from the end of the protective sleeve (1) where the insertion hole (11) is not opened.

5. The stud tip protection device according to claim 1, characterized in that: The protective sleeve (1) is made of rubber.

6. The stud tip protection device according to claim 5, characterized in that: The diameter of the insertion hole (11) is not greater than the outer diameter of the stud (2).

7. The stud tip protection device according to claim 1, characterized in that: The protective sleeve (1) has an exhaust hole inside. One end of the exhaust hole is connected to the insertion hole (11), and the other end of the exhaust hole is connected to the outer wall of the protective sleeve (1).

8. The stud tip protection device according to claim 7, characterized in that: One end of the vent hole that communicates with the insertion hole (11) is located at the protective head end (13) of the insertion hole (11) near the protective sleeve (1).

9. The stud tip protection device according to claim 1, characterized in that: The protective sleeve (1) has an inclined notch (14) at its protective tail end (12). The inclined notch (14) is inclined from the side near the protective tail end (12) to the side near the protective head end (13) towards the side near the axis of the insertion hole (11).

10. The stud tip protection device according to claim 1, characterized in that: The protective head end (13) of the protective sleeve (1) is red.