Special tool for punching bolt hole of floating body

By designing a punching tool for the bolt holes of the hollow tube and the blocking plate, the problem of existing devices being unable to open holes in large-volume floats has been solved, achieving a fast and robust opening effect, which is suitable for low-density float materials.

CN224116320UActive Publication Date: 2026-04-14SUZHOU FUNENG PHOTOVOLTAIC TECH CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-16
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing punching equipment cannot effectively process holes in large-volume floats, especially due to the strength issues of metal structural components, which result in high processing force and limited space, making it unsuitable for large-volume floats.

Method used

A special tool for punching bolt holes in floats, including a hollow tube, a chamfered tube opening, and a clearance groove, has been designed. The tool uses a hollow tube made of stainless steel in conjunction with a blocking plate. The blocking plate is then inserted into the float to make a hole by striking it with a hammer. This tool is suitable for floats made of low-density materials.

Benefits of technology

It enables rapid drilling of low-density material floats, has high structural strength, can be used underwater for a long time and maintain a sharp state, and can meet the drilling requirements of large-volume floats.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224116320U_ABST
    Figure CN224116320U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of floating body manufacturing, and particularly discloses a special tool for punching a floating body bolt hole, which comprises a hollow pipe, a pipe orifice chamfer is formed at one end of the hollow pipe; an avoiding groove is formed in the pipe orifice chamfer; the other end of the hollow pipe is fixedly connected with a blocking plate; the hollow pipe is held by one hand, the hammer is held by the other hand to knock the blocking plate, when the receding groove is aligned with the position, where a hole needs to be formed, of the floating body, the floating body can be inserted for hole forming under knocking of the hammer, then the bolt is inserted into the floating body to be matched with the nut gasket and the like for fastening, and rapid hole forming of the floating body made of the low-density material is achieved. And fasteners such as bolts and the like can be conveniently mounted for fixing.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of float manufacturing technology, specifically a special tool for punching bolt holes in floats. Background Technology

[0002] The float is specifically made of medium-density polyethylene (MDPE), which is lightweight and easy to install and transport. It is made of MPE. The float is a supporting component for the floating photovoltaic industry. Photovoltaic accessories are connected and fixed to the float through connectors to form a whole, so that they will not sway, loosen or fall off on the water surface.

[0003] Chinese utility model patent CN216137941U, published on March 29, 2022, discloses a punching device for bolt holes in a duct flange. The device includes a body, an electric push rod fixedly mounted on the top of the body, a closing plate hinged to the front surface of the body, a push rod end vertically penetrating the body, a punching head fixedly mounted on the push rod end, a support plate fixedly mounted on one side of the body, and a bidirectional threaded rod fixedly mounted on the output shaft of the motor, which is laterally inserted into the interior of the body. This utility model utilizes the cooperation between components such as a motor, a second slider, a pressing disc, a guide rod, and a connecting plate. The motor drives the first slider to press the flange, while the connecting plate drives the pressure plate to slide on the guide rod, causing the spring to press downwards. Simultaneously, a pull rope pulls the pressing disc to press the flange from the top, achieving a firm fixation of the flange and facilitating punching.

[0004] However, the above-mentioned disclosed solutions have the following shortcomings: the existing punching devices are all for punching metal structural parts. Due to the structural strength of the metal parts, the processing force required for punching is large, and the space to accommodate the structural parts is small, which cannot be adapted to large-volume floats. Therefore, it is not possible to process holes on the surface of large-volume floats. Utility Model Content

[0005] The purpose of this utility model is to solve the technical problem that existing punching devices are used to punch holes in metal structural parts. Due to the structural strength of metal parts, the processing force required for punching is large, and the space to accommodate the structural parts is small, making it unsuitable for large-volume floats. Therefore, it is impossible to process holes on the surface of large-volume floats. This utility model provides a special tool for punching bolt holes in floats.

[0006] To achieve the above objectives, the present invention adopts the following technical solution;

[0007] The special tool for punching bolt holes in a floating body according to this utility model includes a hollow tube; one end of the hollow tube has a chamfered opening; an clearance groove is formed inside the chamfered opening; and a blocking plate is fixedly connected to the other end of the hollow tube.

[0008] Furthermore, the hollow tube is made of metal.

[0009] Furthermore, the chamfering distance of the pipe opening is the same as the depth of the clearance groove.

[0010] The special tool for punching bolt holes in float bodies provided by this utility model has the following beneficial effects:

[0011] 1. This utility model allows for the quick drilling of holes in floats made of low-density materials by holding a hollow tube in one hand and striking a blocking plate with a hammer in the other. When the clearance groove is aligned with the position on the float to be drilled, the float can be inserted to drill the hole under the hammer's strike. Then, a bolt is inserted into the float and tightened with nuts and washers.

[0012] 2. This utility model uses a hollow tube made of stainless steel, which is not susceptible to rainwater corrosion and allows for additional drilling operations after the float is launched. At the same time, the high structural strength allows it to maintain a sharp state for drilling over a long period of time. The chamfer distance of the tube opening is the same as the depth of the clearance groove, achieving a smooth transition between the tube opening chamfer and the clearance groove. This allows for low-resistance drilling through the float when punching holes in it. Attached Figure Description

[0013] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings;

[0014] Figure 1 This is a schematic diagram of the isometric structure of the first embodiment of this utility model;

[0015] Figure 2 This is a front view structural diagram of the first embodiment of the present invention;

[0016] Figure 3 This is a side view of the first embodiment of the present invention.

[0017] Figure 4 This is a schematic diagram of the isometric structure of the second embodiment of this utility model;

[0018] Figure 5 This is a front view structural diagram of the second embodiment of the present invention.

[0019] The labels in the diagram are as follows: 1. Hollow tube; 2. Chamfered pipe opening; 3. Clearance groove; 4. Blocking plate. Detailed Implementation

[0020] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0021] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] It should be noted that all directional indications (such as up-down-left-right-forward-backward...) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0023] Please see Figure 1-5 As shown, a special tool for punching bolt holes in a float includes a hollow tube 1; one end of the hollow tube 1 has a chamfered opening 2; a clearance groove 3 is formed inside the chamfered opening 2; and a blocking plate 4 is fixed to the other end of the hollow tube 1. By holding the hollow tube 1 with one hand and striking the blocking plate 4 with a hammer in the other hand, when the clearance groove 3 is aligned with the position on the float to be drilled, the hole can be drilled by inserting it into the float under the hammer's strike. Then, the bolt is inserted into the float and tightened with nuts, washers, etc. This allows for quick drilling of holes in floats made of low-density materials, and facilitates the installation of bolts and other fasteners for fixation.

[0024] The hollow tube 1 is made of metal, specifically stainless steel, which makes it resistant to rainwater corrosion. It allows for additional drilling operations even after the float is launched into the water. It also has high structural strength, allowing it to maintain a sharp state for drilling over a long period of time.

[0025] The chamfer distance of the pipe opening chamfer 2 is the same as the depth of the clearance groove 3, achieving a smooth transition between the pipe opening chamfer 2 and the clearance groove 3. This allows for low-resistance drilling through the float when punching the float.

[0026] Hollow tube 1 is cylindrical or oblong, which allows it to be selected according to the shape of the bolt holes of the float to achieve the best opening effect.

[0027] The hollow tube 1 and the blocking plate 4 are fixed by welding. This welding method ensures that when the blocking plate 4 is struck with a hammer, the hollow tube 1 and the blocking plate 4 will not separate due to force, and at the same time, it protects the end of the hollow tube 1 from deformation due to force.

[0028] The vertical projection surfaces of the hollow tube 1 and the blocking plate 4 coincide, making the hollow tube 1 a single unit without protrusions when used for punching. This facilitates hand operation and movement, and also serves as a striking surface for punching with tools such as hammers.

[0029] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example 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.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A special tool for punching bolt holes in a floating body, characterized in that; It includes a hollow tube (1); one end of the hollow tube (1) is provided with a pipe opening chamfer (2); a clearance groove (3) is provided in the pipe opening chamfer (2); and a blocking plate (4) is fixedly connected to the other end of the hollow tube (1).

2. The special tool for punching bolt holes in a floating body according to claim 1, characterized in that: The hollow tube (1) is made of metal.

3. The special tool for punching bolt holes in a floating body according to claim 1, characterized in that: The chamfer distance of the pipe opening chamfer (2) is the same as the depth of the clearance groove (3).

4. The special tool for punching bolt holes in a floating body according to claim 1, characterized in that: The hollow tube (1) is cylindrical or waist-shaped.

5. The special tool for punching bolt holes in a floating body according to claim 1, characterized in that: The hollow tube (1) and the blocking plate (4) are fixed by welding.

6. The special tool for punching bolt holes in a floating body according to claim 1, characterized in that: The vertical projection planes of the hollow tube (1) and the blocking plate (4) coincide.

Citation Information

Patent Citations

  • Air pipe flange plate bolt hole punching device

    CN216137941U