Deep-hole ferromagnetic-free fastener combination installation tool

Abstract

The utility model discloses a deep-hole ferromagnetic-free fastener combined installation tool, which is used for solving the technical problem that screw fasteners in deep holes are easy to scatter when being installed and further influence assembly, can be used for conveniently and effectively fixing the fasteners, and belongs to the technical field of screwdrivers. An elastic sleeve is arranged at the front end of the screwdriver in a sleeved mode, and the inner diameter of the elastic sleeve is 0.5 mm-1 mm smaller than the outer diameter of the fastener combination.

Description

Technical Field

[0001] The utility model belongs to the technical field of screwdrivers, and in particular relates to a deep-hole non-ferromagnetic fastener assembly installation tool. Background Art

[0002] Due to technical requirements for some product types, fastener combinations must be made of non-ferromagnetic materials. When installing these fasteners in deep holes, slotted or ferromagnetic bits on standard fastener drivers are inadequate for securing screws, spring washers, and flat washers. Using grease or glue for bonding is unreliable and prone to falling during insertion. This can make removal difficult and require repeated disassembly and assembly. Furthermore, the grease and glue used for bonding can become waste in the product, making it difficult to clean and potentially affecting screw fastening, ultimately impacting overall product quality and performance. Utility Model Content

[0003] The purpose of the utility model is to provide a deep hole non-ferromagnetic fastener combination installation tool, which is used to solve the technical problem that screw fasteners in deep holes are easily scattered when installed, thereby affecting assembly. The utility model can fix fasteners conveniently and effectively.

[0004] The utility model is realized by adopting the following technical solutions:

[0005] A deep-hole non-ferromagnetic fastener assembly installation tool comprises a screwdriver. The front end of the screwdriver is provided with an elastic sleeve. The inner diameter of the elastic sleeve is 0.5mm-1mm smaller than the outer diameter of the fastener assembly.

[0006] During use, install the fastener assembly into the elastic sleeve, rotate the fastener assembly to put the screwdriver head into the slot of the fastener assembly head, confirm that the fastener assembly and the screwdriver are securely fixed, send the fastener assembly into the mounting hole at the bottom of the deep hole, rotate the screwdriver to screw the fastener assembly into the corresponding mounting hole, and after it is in place, directly lift the screwdriver to complete the separation of the elastic sleeve and the fastener assembly.

[0007] Further preferably, the elastic sleeve is tied to the front end of the screwdriver by a binding belt.

[0008] Further preferably, the binding belt outer shell is provided with a protective cover.

[0009] Further preferably, the protective sleeve is a heat shrink tube.

[0010] Further preferably, the length of the elastic sleeve extending from the end of the screwdriver is equal to the thickness of the fastener assembly head or is greater than 0.5 mm of the thickness of the fastener assembly head.

[0011] The utility model can facilitate the convenient and effective fixation of screw fasteners when installing them in deep holes, and prevent the fasteners from being scattered and affecting the assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention, and together with the description, serve to explain the principles of the present invention.

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0014] Figure 1 Represents a schematic diagram of a deep hole.

[0015] Figure 2 It shows the structural diagram of the present utility model.

[0016] In the figure: 1-screwdriver, 2-elastic sleeve, 3-fastener assembly, 4-binding belt, 5-protective cover. DETAILED DESCRIPTION

[0017] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the scheme of the present invention will be further described below. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0018] In the description, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance. It should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, removable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms based on specific circumstances.

[0019] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0021] A deep hole non-ferromagnetic fastener assembly installation tool comprises a screwdriver 1. The front end of the screwdriver 1 is sleeved with an elastic sleeve 2. The inner diameter of the elastic sleeve 2 is 0.5mm-1mm smaller than the outer diameter of the fastener assembly 3.

[0022] The elastic sleeve 2 is tied to the front end of the screwdriver 1 through a binding belt 4, and a protective sleeve 5 is provided on the outer cover of the binding belt 4.

[0023] The protective sleeve 5 is a heat shrink tube, and the length of the elastic sleeve 2 extending from the end of the screwdriver 1 is equal to the thickness of the head of the fastener assembly 3 or greater than 0.5 mm of the thickness of the head of the fastener assembly 3.

[0024] In this embodiment, a fastener assembly 3 consisting of a pan head screw M5X20 (GB / T67-2017) made of non-ferromagnetic material 022Cr17Ni12Mo2N (GB / T 1220-2007), a spring washer (GB / T93-1987), and a washer (GB / T848-2002) is taken as an example. This fastener assembly 3 needs to be installed in a deep hole with a depth of 150 mm. Figure 1 As shown, the elastic sleeve 2 is made of a rubber sleeve, and the binding belt 4 is made of a thin iron wire.

[0025] First, measure the outer diameters of the flat washer and the pan-head screw head. Select a rubber sleeve with an inner diameter 0.5mm-1mm smaller than these dimensions. Place the rubber sleeve over the head of the driver (1) and insert the fastener assembly (3) into the rubber sleeve. The elasticity of the rubber sleeve secures the fastener assembly (3) to the driver (1) head. The rubber sleeve should extend beyond the end of the driver (1) to the same level as the flat washer or approximately 0.5mm longer. Secure the rubber sleeve to the driver (1) with fine wire. Heat shrink tubing should be used to secure the wire binding to prevent damage to the inner wall of the deep hole during use.

[0026] When in use, install the fastener assembly 3 into the rubber sleeve, turn the screw so that the head of the driver 1 enters the slot of the screw head, and after confirming that the fastener assembly 3 and the driver 1 are securely fixed, send the fastener assembly 3 into the mounting hole at the bottom of the deep hole, turn the driver 1 to screw the screw into the corresponding mounting hole. After it is in place, directly lift the bit to complete the separation of the rubber sleeve and the fastener assembly 3.

[0027] The working principle is as follows: an elastic sleeve 2 is added to the front end of a driver 1 to limit the position of a fastener assembly 3. The elastic sleeve 2 securely secures the fastener assembly 3 (screw, elastic washer, washer, etc.) to the front end of the driver 1 and ensures the coaxiality of the fastener assembly 3 and the driver 1. During tightening, after the fastener assembly 3 is screwed into the threaded hole and tightened, the driver 1 is lifted, and the fastener assembly 3 naturally disengages the elastic sleeve 2, making the present invention reusable.

[0028] The advantages of this utility model are as follows:

[0029] 1. The utility model is characterized in that it is softly connected to the end of the screwdriver 1 to prevent the elastic sleeve 2 from obstructing the tightening action of the screwdriver 1 during the screw tightening process; at the same time, it allows the screw to slide axially with the screwdriver 1 after tightening to ensure that the screw is tightened in place, preventing the elastic sleeve 2 from pressing against the tightening section to hinder tightening.

[0030] 2. The characteristics of the present invention are that the end of the elastic sleeve 2 has a certain elasticity, which can effectively fix the fastener assembly 3 while ensuring that the last few threads can be effectively compressed to ensure tightening; prevent the fastener assembly 3 from escaping from the elastic sleeve 2; and can adapt to the fasteners applicable to the screwdriver 1 within a certain range.

[0031] 3. The combination of the driver 1 and the fixing member should not be restricted by the type, size and size of the driver 1. For example, the type may be a cross pan head screw and a cylindrical head hexagonal screw, and the size may be other sizes. The fastener combination 3 may also be other similar fastener combinations 3.

[0032] 4. The elastic sleeve 2 in this structure is replaceable to adapt to different types of fastener assemblies 3.

[0033] The above description is only a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Although detailed descriptions have been made with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents; and such modifications or replacements do not deviate from the essence of the corresponding technical solutions within the scope of the technical solutions of the embodiments, and they should all be covered by the scope of protection of the claims.

Claims

1. A deep hole non-ferromagnetic fastener assembly installation tool, comprising a screwdriver (1), characterized in that: The front end of the screwdriver (1) is provided with an elastic sleeve (2), and the inner diameter of the elastic sleeve (2) is 0.5 mm to 1 mm smaller than the outer diameter of the fastener assembly (3).

2. A deep hole non-ferromagnetic fastener assembly installation tool according to claim 1, characterized in that: The elastic sleeve (2) is tied to the front end of the screwdriver (1) via a binding belt (4).

3. A deep hole non-ferromagnetic fastener assembly installation tool according to claim 2, characterized in that: The outer cover of the binding belt (4) is provided with a protective cover (5).

4. A deep hole non-ferromagnetic fastener assembly installation tool according to claim 3, characterized in that: The protective sleeve (5) is a heat shrink tube.

5. A deep hole non-ferromagnetic fastener assembly installation tool according to any one of claims 1 to 4, characterized in that: The length of the elastic sleeve (2) extending out of the end of the screwdriver (1) is equal to the thickness of the head of the fastener assembly (3) or is greater than 0.5 mm of the thickness of the head of the fastener assembly (3).

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