CN217487876U

CN217487876U - Spare and accessory part screw that case and bag was used is fixed knot structure in advance

Info

Publication number: CN217487876U
Application number: CN202123369763.8U
Authority: CN
Inventors: 廖锡炜
Original assignee: Guangzhou Wintimes Aluminum Products Co ltd
Current assignee: Guangzhou Wintimes Aluminum Products Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-09-27
Anticipated expiration: 2031-12-29

Abstract

The utility model discloses a spare and accessory part screw pre-fixing structure for a case, wherein an inner pad is arranged at the inner side of the spare and accessory part of the case, and the inner pad and the spare and accessory part are locked and fixed through a plurality of screws; at each locking and fixing part, a stud is arranged on the spare part, a through hole is arranged on the inner pad, a plurality of fixing plates distributed discontinuously are arranged on the inner side of the through hole, and a fixing groove for pre-fixing screws is formed among the fixing plates. In the spare part screw pre-fixing structure for luggage, through set up fixed plate and fixed slot in the through-hole of interior pad, utilize the pre-fixing effect that the fixed slot played the screw, make the screw can be accurate aim at the position of double-screw bolt on the spare part, effectively avoided the screw to drop or the assembly personnel the screw lock inclined to one side the condition emergence appear, the accuracy nature and the stability of each spare part equipment on the effective assurance luggage, the principle of this screw pre-fixing structure is simple, the simple operation, can effectively improve the installation effectiveness and the installation accuracy of luggage spare part, reduce product manufacturing cost.

Description

Spare and accessory part screw is fixed knot structure in advance that case and bag was used

Technical Field

The utility model relates to a case and bag manufacturing technical field, in particular to spare and accessory part screw is fixed knot structure in advance that case and bag was used.

Background

In current case and bag trade, in order to facilitate the dismantlement and change accessories, but the screw structure of reassembling and dismantlement can be selected for use to most accessories of case and bag and fix. Use the truckle installation of case and bag as an example, in current assembly process, cushion in screw and the truckle, the wheel seat three is in the state of separation, therefore, installer when installing the truckle, generally adopt the head to have magnetic screwdriver, will treat the screw of installation to adsorb earlier and fix overhead at the screwdriver through magnetic attraction, then pass the screw through-hole on the interior pad, it is fixed to lock with the screw post on the pull rod truckle again, if meet the screw comparatively narrow and small or screw installation angle of installation operating space inside the case for non-vertical direction, because of operating space or operating angle are limited, the realization that can't be fine visualizes the installation, such operating mode just has following problem easily:

(1) the screw can often appear the condition that drops because of colliding with some positions of case or because of screwdriver head magnetic force is not enough, and installer need look for the screw that drops again, with the screw on screwdriver head in advance again, carries out the locking of screw again, and its operation process is convenient inadequately, and work efficiency is low.

(2) In order to increase the fault tolerance, the through holes on the inner pad have to be designed into a track shape with a width smaller than the length, which easily causes the screw not to be precisely aligned with the screw post, the screw may be locked and even damaged, and finally the production cost is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's is not enough, provides an accessories screw pre-fixing structure that case and bag was used, and its simple structure, simple operation can effectively improve the installation effectiveness and the installation degree of accuracy of case and bag accessories.

The technical scheme of the utility model is that: a spare and accessory part screw pre-fixing structure for a suitcase is characterized in that an inner pad is arranged on the inner side of a spare and accessory part of the suitcase, and the inner pad and the spare and accessory part are locked and fixed through a plurality of screws; at each locking and fixing part, a stud is arranged on the spare part, a through hole is arranged on the inner pad, a plurality of fixing plates which are distributed discontinuously are arranged on the inner side of the through hole, and fixing grooves for pre-fixing screws are formed among the fixing plates. Wherein, through set up fixed plate and fixed slot in the through-hole of interior pad, before interior pad and accessories equipment, the screw can be fixed in advance in the pad under the clamping action of each fixed plate, and it is more stable than taking the screwdriver head of magnetic force in advance to fix the effect in advance, has effectively prevented that the phenomenon that the screw dropped from taking place, also more convenient and accurate during the installation.

In one side that the interior pad deviates from accessories, the border of through-hole (the entrance of through-hole promptly) is equipped with the chamfer, when the screw is fixed in advance, during the screw accuracy that can further be convenient for gets into the through-hole, effectively improves the work efficiency and the accuracy of fixing in advance.

And along the axial direction of the through hole towards one side of the spare part, each fixing plate gradually inclines towards the center of the through hole or each fixing plate is arranged in parallel with the axial direction. That is, each fixing plate may have a vertical structure or an inclined structure, but regardless of the structure, since each fixing plate has a certain elasticity, the inner side of each fixing plate is closely clamped to the outer circumference of the screw after the screw is inserted into the fixing groove, thereby forming a stable pre-fixing structure.

When the fixing plate gradually inclines towards the center of the through hole, the inner side surface (namely the side surface contacted with the screw) of the fixing plate is in an inclined plane shape;

when the fixing plate is arranged in parallel with the axis direction, the inner side surface (namely, the side surface contacted with the screw) of the fixing plate is an arc surface.

The depth of the fixing plate is smaller than that of the through hole, and the thickness of the fixing plate (namely the thickness from the inner side of the through hole to the inner side of the fixing plate) is 0.4-0.6 mm. Further, on the basis of the above-mentioned chamfer structure at the entrance of the through hole, each fixing plate starts at the end of the chamfer and extends downward along the through hole, forming a fixing plate structure located inside the through hole.

The maximum diameter of the through hole is larger than that of the screw, and the maximum inner diameter of the fixing groove is smaller than that of the screw.

In order to further take account of the pre-fixing strength and the mounting efficiency of the screw, the difference between the maximum inner diameter of the fixing groove and the maximum diameter of the screw is controlled to be 0.4-0.6 mm.

As a preferred scheme, the fixing plate has three, and the central lines of three fixing plates mutually form an included angle of 120 degrees. The number and shape of the fixing plates can be increased or decreased or adjusted according to actual needs, but it is required to form stable fixing grooves.

The fixing plate and the inner pad are of an integrated structure and are integrally formed by soft materials (such as PP and other high polymer materials), so that the fixing plate has certain elasticity, and when a screw enters the fixing groove, the fixing plate clamps the screw through elastic deformation of the fixing plate.

The spare and accessory parts comprise a caster, a pull rod, a lock, a nameplate, a corner protector, a lifting handle or a standing foot and the like.

When the screw is pre-fixed on the inner pad, the depth of the screw inserted into the through hole is controlled to be 2-3 mm.

Among the accessories screw pre-fixing structure that above-mentioned case was used, set up fixed plate and fixed slot in through the through-hole of filling up in, make interior pad, before the accessories assembles on the case shell, the screw can be in advance fixed in interior pad under the clamping action of each fixed plate, then directly be fixed in on the case shell with the accessories locking of interior pad, the screw is filled up in advance the fixed effect obviously more stable than the screw batch head of taking the magnetic force in advance, the phenomenon that the screw dropped has effectively been prevented from taking place, it is also more convenient and accurate during the installation.

Compared with the prior art, the utility model, following beneficial effect has:

in the spare part screw pre-fixing structure for luggage, through set up fixed plate and fixed slot in the through-hole of interior pad, utilize the pre-fixing effect that the fixed slot played the screw, make the screw can be accurate aim at the position of double-screw bolt on the spare part, effectively avoided the screw to drop or the assembly personnel the screw lock inclined to one side the condition emergence appear, the accuracy nature and the stability of each spare part equipment on the effective assurance luggage, the principle of this screw pre-fixing structure is simple, the simple operation, can effectively improve the installation effectiveness and the installation accuracy of luggage spare part, reduce product manufacturing cost.

In the spare and accessory part screw pre-fixing structure for the luggage, the fixing grooves and the fixing plates are simple in structure, the development difficulty and the development cost of the spare and accessory parts are not required to be additionally increased, the structure is low in cost, simple in manufacturing mode and suitable for being widely popularized and applied in the field of luggage manufacturing.

In the accessory screw pre-fixing structure for the luggage, when the screws are pre-fixed on the inner cushion, the participation of the luggage shell and other accessories is avoided, so that visual installation can be better realized, and meanwhile, the process of inserting the screws into the fixing grooves does not need to be assisted by screwdriver, so that the probability of falling of the screws due to misoperation or insufficient magnetic force of screwdriver heads is greatly reduced, and the operation difficulty in the follow-up accessory assembling process can be greatly reduced.

Drawings

Fig. 1 is a schematic view of the overall structure of the luggage to which the screw pre-fixing structure of the component is applied.

FIG. 2 is a partial cross-sectional view of the inner pad of FIG. 1 at the caster.

Fig. 3 is a schematic view of the overall structure of the inner pad when the pre-fixing structure is applied to the caster.

Fig. 4 is a top view of the screw pre-fixing structure of the component shown in fig. 3.

Fig. 5 is a view in the direction a of fig. 4.

Fig. 6 is a view in the direction B of fig. 4.

Fig. 7 is a schematic view of an assembly principle of the screw pre-fixing structure applied to a caster.

In the above figures, the components indicated by the respective reference numerals are as follows: the device comprises a caster 1, a stud 1-1, an inner pad 2, a fixing plate 2-1, a fixing groove 2-2, a chamfer 2-3, a screw 3 and a box shell 4.

Detailed Description

The present invention will be described in further detail with reference to examples, but the present invention is not limited thereto.

Example 1

The spare and accessory part screw pre-fixing structure for the luggage (as shown in fig. 1) is applied to the assembly of the caster in the luggage, as shown in fig. 2, an inner pad 2 is arranged on the inner side of the caster 1 of the luggage, the inner pad and the caster are locked and fixed through a plurality of screws 3, and after the luggage is installed, a case shell 4 is clamped and fixed between the caster and the inner pad. At the locking and fixing part, a stud 1-1 with internal threads is arranged on a wheel seat of the caster, as shown in fig. 3 to 6, a through hole is arranged on the inner pad, a plurality of fixing plates 2-1 which are distributed discontinuously are arranged on the inner side of the through hole, and fixing grooves 2-2 for pre-fixing screws are formed among the fixing plates. Wherein, through set up fixed plate and fixed slot in the through-hole of interior pad, before interior pad and truckle equipment, the screw can be fixed in advance in the pad under the clamping action of each fixed plate, and it is more stable than the screwdriver head of taking the magnetic force in advance that its effect of fixing in advance is obvious, has prevented effectively that the phenomenon that the screw dropped from taking place, also more convenient and accurate during the installation.

Further, as shown in fig. 3, in one side of the inner pad departing from the caster and the case shell, the edge of the through hole (namely the entrance of the through hole) is provided with chamfers 2-3, when the screw is pre-fixed, the arrangement of the chamfers can further facilitate the screw to accurately enter the through hole, and the pre-fixing work efficiency and accuracy are effectively improved. Each fixed plate and axis direction parallel arrangement along the axis direction of through-hole towards truckle one side, and each fixed plate can adopt perpendicular column structure promptly, because each fixed plate has certain elasticity, consequently after the screw gets into the fixed slot, the inboard of each fixed plate pastes tightly the centre gripping in the screw periphery, forms stable pre-fixing structure. Wherein, the inner side surface (i.e. the side surface contacting with the screw) of the fixing plate is an arc surface corresponding to the periphery of the screw (as shown in fig. 4). The depth of the fixing plates is smaller than that of the through holes, and on the basis of the chamfer structure at the inlet of the through holes, each fixing plate starts at the tail end of the chamfer and extends downwards along the through holes to form a fixing plate structure positioned on the inner side of the through holes. The thickness of the fixing plate (i.e. the thickness between the inner side of the through hole and the inner side of the fixing plate) is 0.4-0.6 mm.

Generally, the maximum diameter of the through hole is larger than that of the screw, and the maximum inner diameter of the fixing groove is smaller than that of the screw. In order to further take account of the pre-fixing strength and the mounting efficiency of the screw, the difference between the maximum inner diameter of the fixing groove and the maximum diameter of the screw is controlled to be between 0.4 mm and 0.6mm, which is more suitable.

In this embodiment, as a preferred scheme, the fixing plate has three pieces, and the central lines of the three pieces of fixing plate mutually form an included angle of 120 degrees. The number and shape of the fixing plates can be increased or decreased or adjusted according to actual needs, but it is required to form stable fixing grooves.

The fixing plate and the inner pad are of an integrated structure, and are integrally formed by soft materials (such as PP and other high polymer materials) so that the fixing plate has certain elasticity, and when the screw enters the fixing groove, the fixing plate clamps the screw through elastic deformation of the fixing plate. When the screw is pre-fixed on the inner pad, the depth of the screw inserted into the through hole is controlled to be 2-3 mm.

Among the accessories screw pre-fixing structure that above-mentioned case was used, set up fixed plate and fixed slot in through the through-hole of filling up in, make interior pad, before the truckle assembles on the case shell, the screw can be fixed in advance under the clamping action of each fixed plate and fill up, then directly fill up in with on the truckle locking is fixed in the case shell, the screw fills up in advance the fixed effect obviously more stable than the screwdriver head of taking the magnetic force, the phenomenon that the screw dropped has effectively been prevented from taking place, it is also more convenient and accurate during the installation. Its concrete assembling process is as shown in fig. 7, before the truckle installation, fix the interior pad on the frock earlier, insert the screw in the fixed slot that corresponds, because the thickness of fixed plate is less, when so the screw inserts, each fixed plate can produce plastic deformation to the clamp force to the screw produces, let the screw become a whole of linking together with interior pad, screw male degree of depth is controlled between 2 ~ 3mm through the frock, then the interior pad shifts to the assembly line again on, assemble with truckle and case shell.

The pre-fixing structure for the part screw is not only applied to the assembly of the caster of the embodiment, but also correspondingly applied to the assembly of other parts such as a pull rod, a lock, a nameplate, a corner protector, a handle or a standing foot in a case.

Example 2

Compared with the embodiment 1, the spare and accessory screw pre-fixing structure for the luggage is different in that: each fixing plate inclines gradually towards the center of the through hole, namely each fixing plate adopts an inclined structure, and the inner side surface (namely the side surface contacted with the screw) of each fixing plate is in an inclined plane shape. However, in any of the above-described structures, since each of the fixing plates has a certain elasticity, the inner side of each of the fixing plates is closely held to the outer circumference of the screw after the screw is inserted into the fixing groove, thereby forming a stable pre-fixing structure.

As described above, the present invention can be realized well, and the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; all equivalent changes and modifications made according to the present invention are intended to be covered by the scope of the claims of the present invention.

Claims

1. A pre-fixing structure for spare and accessory parts screws for a case is characterized in that an inner pad is arranged on the inner side of the spare and accessory parts of the case, and the inner pad and the spare and accessory parts are locked and fixed through a plurality of screws; at each locking and fixing part, a stud is arranged on the spare part, a through hole is arranged on the inner pad, a plurality of fixing plates distributed discontinuously are arranged on the inner side of the through hole, and a fixing groove for pre-fixing screws is formed among the fixing plates.

2. The accessory screw pre-fixing structure for luggage as claimed in claim 1, wherein in a side of the inner pad facing away from the accessory, an edge of the through hole is chamfered.

3. The component screw pre-fixing structure for luggage as claimed in claim 1, wherein said fixing plates are gradually inclined toward the center of the through hole or are arranged in parallel with the axial direction along the axial direction of the through hole toward the component side.

4. The pre-fixing structure for a part screw of a luggage as claimed in claim 3, wherein when the fixing plate is gradually inclined toward the center of the through hole, the inner side surface of the fixing plate is inclined plane;

when the fixed plate is arranged in parallel with the axis direction, the inner side surface of the fixed plate is an arc surface.

5. The spare part screw pre-fixing structure for luggage as claimed in claim 1, wherein the depth of the fixing plate is less than the depth of the through hole, and the thickness of the fixing plate is 0.4-0.6 mm.

6. The accessory screw pre-fixing structure for luggage as claimed in claim 1, wherein the maximum diameter of the through hole is larger than the maximum diameter of the screw, and the maximum inner diameter of the fixing groove is smaller than the maximum diameter of the screw.

7. The accessory screw pre-fixing structure for luggage as claimed in claim 6, wherein the difference between the maximum inner diameter of the fixing groove and the maximum diameter of the screw is controlled to be 0.4-0.6 mm.

8. The accessory screw pre-fixing structure for luggage as claimed in claim 1, wherein the fixing plate has three pieces, and the central lines of the three pieces of fixing plate are at an angle of 120 degrees with each other.

9. The pre-fixing structure for a screw of a luggage and a kit as claimed in claim 1, wherein the fixing plate and the inner pad are integrally formed by a soft material.

10. The structure of claim 1, wherein the component is a caster, a rod, a lock, a nameplate, a corner protector, a handle or a stand.