CN216657758U - Hollow screw dismounting device - Google Patents
Hollow screw dismounting device Download PDFInfo
- Publication number
- CN216657758U CN216657758U CN202122751625.XU CN202122751625U CN216657758U CN 216657758 U CN216657758 U CN 216657758U CN 202122751625 U CN202122751625 U CN 202122751625U CN 216657758 U CN216657758 U CN 216657758U
- Authority
- CN
- China
- Prior art keywords
- screwdriver
- hollow
- screw
- hollow screw
- boss
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention relates to a hollow screw disassembling and assembling device, and belongs to the technical field of aerospace equipment disassembling and assembling. The head of the traditional screwdriver is additionally provided with a head design suitable for a hollow structure of a hollow screw, the screwdriver has a part of boss structures compared with the screwdriver of a common screwdriver, in the process of dismounting the hollow screw, the boss of the screwdriver head of the hollow screwdriver can be inserted into the hollow part of the hollow screw to form a matching and matching state, and in the process of rotating the screwdriver, the screwdriver is not easy to slip, so that the hollow screw is quickly dismounted.
Description
Technical Field
The invention belongs to the technical field of aerospace equipment dismounting and mounting, and relates to a hollow screw dismounting and mounting device.
Background
At present, weaponry is rapidly developed towards miniaturization, light weight and the like, and especially in the field of aerospace, the requirements of miniaturization and light weight of weaponry on the weight of products are more and more strict, so that weight reduction in the process of developing aerospace products is particularly important.
Currently, in the special field of aerospace, designers, in order to meet the requirement of weight reduction of a product for miniaturization or light weight, can not pass any place where weight reduction can be achieved on the premise of ensuring the reliability of product quality, and this includes common screws, and known screws are indispensable fasteners for connecting and fixing product parts, and are critical though small. At present, the types of screws in international society are various, the screws in the industry are generally divided according to names and head shapes, the screw is not listed in detail, the screws are generally of solid structures, in the aerospace field and the medical orthopedics field, a plurality of products adopt a through hole type hollow screw fastening form, the materials adopt aluminum, and the purpose of the screw is mainly to reduce weight or meet special application requirements.
The screwdriver is a traditional tool for disassembling and assembling screws, and the traditional screwdriver has a plurality of types, and each type of screw has a corresponding screwdriver. Currently, the hollow screw is not popularized in the civil market, so that a special dismounting tool for the hollow screw is not found. At present, the straight-shaped and cross-shaped hollow screws are common in certain specific military products, a common straight-shaped or cross-shaped screwdriver is still used for dismounting the straight-shaped or cross-shaped hollow screws, when the common screwdriver is used for dismounting the hollow screws, the thin wedge-shaped head of the screwdriver is inserted into a notch of the head of the screw, and the screw is fastened and dismounted by rotating the tool shank. Traditional screwdriver and hollow screw contact surface are little, and because rotatory inertia ascending effort can inevitably cause the screwdriver can produce the skew with the screw at rotatory in-process at the assembly with the dismantlement in-process, cause the hollow screw recess impaired easily, and the phenomenon of skidding can appear in the rotation to the impaired screwdriver of screw recess, causes the difficulty to screw assembly and dismantlement, influences normal job schedule.
Disclosure of Invention
Technical problem to be solved
Aiming at the technical defect that the traditional screw is easy to slide during operation in the process of assembling and disassembling the hollow screw pointed out by the technical background, the invention provides the device for assembling and disassembling the hollow screw, which can effectively solve the problem of slide of the hollow screw in special fields of aerospace and the like.
Technical scheme
A hollow screw dismounting device comprises a screwdriver bit and a screwdriver handle and is characterized by further comprising a boss, wherein the boss is located at one end of the screwdriver bit, the boss of the hollow screwdriver bit can be inserted into a hollow part of a hollow screw to form a matching and matching state, and the screwdriver is not easy to slip in the rotating process of the screwdriver, so that the hollow screw is quickly dismounted and mounted.
The further technical scheme of the invention is as follows: the length of the boss is 1/2 of the hollow part of the hollow screw.
The further technical scheme of the invention is as follows: the screwdriver head is a cross-shaped screwdriver head.
The further technical scheme of the invention is as follows: the screwdriver head is a straight-line-shaped screwdriver head.
The further technical scheme of the invention is as follows: the screwdriver head has a trapezoidal shape.
Advantageous effects
The hollow screw assembling and disassembling device provided by the invention can realize the assembling and disassembling work of the hollow screw in special fields such as aerospace and the like. Compare traditional screwdriver and increased top structural design, designed on the top with cannulation screw hollow part matched with boss, make it can provide stable moment at the assembly and disassembly in-process, increase cannulation screw dismouting location reliability, eliminate screwdriver dismouting contact skew, reduce the smooth silk fault rate of cannulation screw pin head, reach the effect that is showing that the disability rate is 0.
Drawings
The drawings, in which like reference numerals refer to like parts throughout, are for the purpose of illustrating particular embodiments only and are not to be considered limiting of the invention.
FIG. 1 is a schematic view of a cross-shaped hollow cylindrical screw attaching and detaching device;
FIG. 2 is a schematic view of a method and an apparatus for assembling and disassembling a cross-grooved cylindrical cannulated screw;
FIG. 3 is a view showing a dimensional structure of the mounting and dismounting device for a linear cylindrical cannulated screw;
FIG. 4 is a schematic view of the assembly and disassembly of a cylindrical cannulated screw with a straight groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The invention provides a hollow screw assembling and disassembling device which can realize the assembling and disassembling work of a hollow screw.
According to the characteristics of the hollow structure of the hollow screw, based on the structural foundation of the traditional screwdriver, the head design suitable for the hollow structure of the hollow screw is added to the screwdriver head of the traditional screwdriver, compared with the screwdriver head of a common screwdriver, the screwdriver has a part of boss structures, in the process of dismounting the hollow screw, the boss of the screwdriver head of the hollow screwdriver can be inserted into the hollow part of the hollow screw to form a matching and matching state, and in the process of rotating the screwdriver, the screwdriver is not easy to slip, so that the hollow screw is quickly dismounted.
According to the structural characteristics of the hollow screw, a matched hollow screw device is selected, the invention takes a cross-shaped cylindrical hollow screw as an example, as shown in figure 1, the cross-shaped cylindrical hollow screw comprises a boss 1, a screwdriver head 2 and a screwdriver handle 3, wherein the screwdriver head 2 is a cross-shaped head, and in order to better exert force in the installation and disassembly processes, the structure of the screwdriver head is designed to be a trapezoidal structure. The length of the boss 1 is an important technical parameter for the invention, and too long can cause difficult plugging and pulling and waste of materials, and too short can not play a role, so the invention obtains the optimal length of 1/2 of the hollow screw through simulation design and experiments.
The method for disassembling and assembling the hollow screw by using the device for disassembling and assembling the hollow screw comprises the following steps: as shown in figure 2, the boss 1 of the screwdriver disclosed by the invention is inserted into a hollow cavity 6 of a hollow screw, the screwdriver bit 2 is tightly matched with a screw groove 4, the screwdriver handle 3 is held by a hand to rotate according to the direction of screw lines 5, the screwdriver handle is usually rotated clockwise to be fastened, and the rotation in the anticlockwise direction is disassembly, so that the boss 1 and the hollow cavity 6 are always in a positioning matching state in the whole disassembly and assembly process, and the screw can be effectively prevented from being slipped and buckled in the rotation process.
In order that those skilled in the art will better understand the invention, the following detailed description will proceed with reference being made to specific embodiments.
The structural assembly of the ADF amplifier of a certain helicopter adopts hollow screws, and the structural parameters of the screws are as follows: the total length of the screw is 10mm, the outer diameter of the screw thread is phi 8mm, the head diameter of the screw head is phi 11.9mm, the width of the groove of the straight groove is 1.2mm, the depth of the groove is 1.1mm, the diameter of the hollow cylinder of the screw is phi 5.3mm, and the screw is of a hollow through hole structure and made of aluminum materials.
According to the device, the special hollow screw dismounting device is designed, processed and manufactured, the whole device is structurally characterized in that the structural characteristics are shown as 3, wherein the outer diameter of a boss of a screwdriver is phi 5.1mm, the length of the boss is 3.5mm, the thickness of a blade of the screwdriver is 1.0mm, other dimensions are shown in the attached drawings, and the special hollow screw dismounting device is made of S2 tool steel for quenching treatment.
The linear groove type cylindrical hollow screw is placed at a mounting hole of a product, the linear cylinder structure dismounting device is used for fastening the hollow screw, the cylinder end of the dismounting device is inserted into the hollow part of the screw, and simultaneously, the linear tool bit of the dismounting device is butted with the linear groove of the hollow screw. As the cylindrical boss of the screwdriver and the cylindrical cavity of the hollow screw form a tight fit state in the whole assembling and disassembling process, the whole fastening and disassembling process is very easy, more than 1000 linear groove type cylindrical hollow screws are sequentially subjected to assembling and disassembling tests in order to fully verify the technical effect of the invention, the hollow screws are not damaged, and the expected effect of the invention is completely achieved.
The invention includes but is not limited to the screwdriver bit fixing structure form, and the hollow screw dismounting device with the corresponding structure can be invented according to different hollow structure forms of the hollow screw.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications or substitutions can be easily made by those skilled in the art within the technical scope of the present disclosure.
Claims (5)
1. The utility model provides a hollow screw dismouting device, includes screwdriver bit (2), screwdriver handle of a knife (3), its characterized in that still includes boss (1), boss (1) be located the one end of screwdriver bit (2), hollow screwdriver bit boss (1) can insert the hollow position of hollow screw and form and match the cooperation state, at the rotatory in-process of screwdriver, the screwdriver is difficult to the slippage to realize hollow screw quick assembly disassembly.
2. A cannulated screw removal device according to claim 1, wherein the length of the boss (1) is 1/2 of the cannulated screw cannulation.
3. A cannulated screw removal device according to claim 1, wherein said screwdriver bit (2) is a cross bit.
4. A cannulated screw removal device according to claim 1, wherein said screwdriver bit (2) is a straight bit.
5. A cannulated screw removal device according to claim 3 or 4, characterised in that the shape of the screwdriver bit (2) is of trapezoidal configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122751625.XU CN216657758U (en) | 2021-11-10 | 2021-11-10 | Hollow screw dismounting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122751625.XU CN216657758U (en) | 2021-11-10 | 2021-11-10 | Hollow screw dismounting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216657758U true CN216657758U (en) | 2022-06-03 |
Family
ID=81784662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122751625.XU Active CN216657758U (en) | 2021-11-10 | 2021-11-10 | Hollow screw dismounting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216657758U (en) |
-
2021
- 2021-11-10 CN CN202122751625.XU patent/CN216657758U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7722303B2 (en) | Frangible blind rivet | |
| US7191504B1 (en) | Universal bushing tool and method of use | |
| US20170246733A1 (en) | Bit puller | |
| US20120110815A1 (en) | Rivet Press | |
| JP2005254444A (en) | Tap with flat cutting edge and repairing method of female thread using with the same | |
| CN202461303U (en) | Punching die for punching inner square holes | |
| CN216657758U (en) | Hollow screw dismounting device | |
| EP2927513A1 (en) | Blind tack bolt with higher clamp-up strength | |
| CN201079943Y (en) | Unloading and pulling equipment | |
| CN211639742U (en) | Tool for assembling and disassembling gun reamer | |
| CN213673919U (en) | Positioning pin dismounting device | |
| CN204076192U (en) | Screw disassembling tool | |
| CN114800364B (en) | Device for disassembling bushing and use method thereof | |
| CN215201787U (en) | Special tool for quick-connection pin puller and pull head thereof | |
| CN220074577U (en) | Union hammering spanner | |
| CN103567503A (en) | Quick change drill die jig for axle shaft flanges | |
| CN219649263U (en) | Shaft conical surface part clamping tool for machining on rotary equipment | |
| CN111660249B (en) | Device and method for disassembling bolt for reaming hole | |
| CN212123130U (en) | Adjustable radial lock nut handling tool | |
| CN211029836U (en) | Device for disassembling and connecting motor stator silicon steel sheet pin shaft | |
| CN221314018U (en) | Tool for rapidly disassembling valve sleeve of electromagnetic valve | |
| CN202684159U (en) | Semi-shaft flange quick replaceable drill jig sleeve | |
| CN216229159U (en) | Auxiliary tool for dismounting steering ball pin and steering plumbing arm | |
| CN219760215U (en) | Round aviation plug rear accessory dismounting tool | |
| CN220145823U (en) | Adjustable hydraulic pressure draws Ma Dinggan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |