CN204784039U

CN204784039U - Plastics expanding element

Info

Publication number: CN204784039U
Application number: CN201520524033.6U
Authority: CN
Inventors: 蔡跃新
Original assignee: NINGBO YONGCHENG HARDWARE MACHINERY Co Ltd
Current assignee: NINGBO YONGCHENG HARDWARE MACHINERY Co Ltd
Priority date: 2015-07-18
Filing date: 2015-07-18
Publication date: 2015-11-18
Anticipated expiration: 2025-07-18

Abstract

The utility model discloses a plastics expanding element, the surperficial interval of half first body is equipped with the joint piece, form the joint groove between the two adjacent joint pieces, the joint piece staggers controlling on the surface of half first body with the joint groove and sets up through separating the block separation, half body of second be equipped with the same joint piece and joint groove on the surface, a plurality of joint piece joints to the joint inslot of half body looks adaptation of second of half first body when half first body and second half body cooperates, half first body and second half body merges with the draw -in groove joint through the joint piece that sets up mutually during normal use, half first body and the second half body intensity of eliminating after the clearance incorporation between original two halves body is difficult to greatly damage and be convenient for insert in required support piece's the hole, half first body and second half body in the transportation is because mutually the joint is fixed can not have the autosegregation state and more can not make half body and second half body of winning separated by the extrusion, can also conveniently take.

Description

A kind of plastic expansion part

Technical field

The utility model relates to fastener areas, and more particularly, it relates to a kind of plastic expansion part.

Background technique

In order to bolt or screw are anchored on the supporting element as body of wall firmly, need the effect by plastic expansion part, specifically plastic expansion part is placed in the hole of supporting element, the base tube body plug at plastic expansion part rear portion is in hole, the swelling that formation swelling is fixed by base tube body is fixed, bolt or screw is allowed to carry the expansion gradually forming half body in half body of plastic expansion part front portion gradually, until semicanal cubical expansion is tightly in hole, so just by bolt or screw fastening on supporting element.

Existing plastic expansion part generally includes two halves body, two bodys are separated not contact and cause leaving between two bodys gap and be convenient to two bodys and opened mutually by screw, but this kind of mode must increase the caliber after two bodys merging because two bodys are separated, when needing to pierce on the less supporting element in aperture, operation is more difficult, and two bodys be separated all can make two bodys open under the touching of any contactant may will make body damage, particularly can mutual extruding the body of other plastic expansion part be easily made to be inserted in gap in transportation process, affect the performance of later stage plastic expansion part, and be inconvenient to separate.

Model utility content

For the deficiency that prior art exists, it is large that the purpose of this utility model is to provide a kind of plastic expansion part intensity, can adapt to wider fixed environment, and be not easy to damage convenient transport and easy-to-operat.

For achieving the above object, the utility model provides following technological scheme: a kind of plastic expansion part, comprise base tube body and the first half bodys be located on base tube body and the second half bodys, described the first half bodys are connected by contiguous block with the second half bodys, described the first half bodys are connected with base tube body by the first movable block, described the second half bodys are connected with base tube body by the second movable block, the spaced surface of wherein said the first half bodys is provided with clamping block, buckling groove is formed between adjacent two clamping blocks, stagger and be arranged through spacing block and separate in described clamping block and buckling groove left and right on the surface of the first half bodys, the surface of described the second half bodys is provided with identical clamping block and buckling groove, when the first half bodys coordinate with the second half bodys, some clamping blocks of the first half bodys snap fit onto in the suitable buckling groove of the second half bodys.

By adopting technique scheme, normal when using the first half bodys and the second half bodys merged by the mutual clamping block that arranges and draw-in groove clamping, eliminate gap between original two halves body merge after the first half bodys and the second half body intensity be not easy greatly to damage and be convenient to be inserted in the hole of required supporting element, just can make during drivescrew the first half bodys and the second half bodys disconnected from each other, can not be there is automatic separated state the first half bodys more can not be made to be squeezed with the second half bodys be separated owing to connecting and fixing mutually in the first half bodys and the second half bodys in transportation process, can also conveniently take.

As preferably, described base tube body is located on disc base, and described disc base, base tube body and connecting plate run through and be provided with screw hole, and offer counter sink on base tube body and disc base, and described counter sink is concentric with screw hole.

By technique scheme, screw hole is certainly for wearing screw, and screw squeezes the first half bodys and the second half bodys after being driven into screw hole, and the spiral shell head of screw can be embedded in counter sink and avoids the spiral shell head of screw to scratch human body, and improves aesthetics.

As preferably, the surface of described first movable block and the second movable block is equipped with trapezoidal stiffening rib.

Pass through technique scheme, first movable block and the second movable block are located on base tube surface, and the reinforcement of the first movable block and the second movable block is first improved by the setting of trapezoidal stiffening rib, secondly indirectly improve the intensity of base tube body, after can also avoiding squeezing into supporting element, the circumference of whole plastic expansion part is rotated.

As preferably, the circumference tube wall of described the first half bodys and the second half bodys is provided with anti-skidding hangnail.

By technique scheme, first anti-skidding hangnail can prevent landing in the process that fetches of starting with, and time secondly in the hole hammering into supporting element, anti-skidding hangnail arranges to increase and improve constant intensity with the frictional force of hole inwall.

Accompanying drawing explanation

Fig. 1 is the structural representation of a kind of plastic expansion part of the utility model embodiment;

Fig. 2 is the sectional view of a kind of plastic expansion part of the utility model embodiment;

Fig. 3 is the A portion enlarged view of Fig. 2.

Accompanying drawing illustrates: 10, plastic expansion part; 11, the first half bodys; 111, anti-skidding hangnail; 12, the second half bodys; 13, base tube body; 131, holding area; 14, disc base; 15, the first movable block; 151, the first moving block; 16, the second movable block; 161, the second moving block; 17, contiguous block; 171, inclined-plane; 18, clamping block; 19, buckling groove; 20, trapezoidal stiffening rib; 30, screw hole; 31, counter sink; 40, spacing block.

Embodiment

With reference to accompanying drawing, a kind of plastic expansion part of the utility model embodiment is described further.

See Fig. 1, plastic expansion part 10 comprises the disc base 14 of bottommost, disc base 14 is provided with base tube body 13, base tube body 13 peripheral wall is symmetrically arranged with the first movable block 15 and the second movable block 16, the surface of the first movable block 15 and the second movable block 16 is provided with trapezoidal reinforced block 20, the first half bodys 11 are connected with by the first movable block 15, the second half bodys 12 are connected with by the second movable block 16, contiguous block 17 between the first half bodys 11 pass through with the second half bodys 12 is connected, the first half bodys 11, the second half bodys 12 and contiguous block 17 are made into integration, the surface of the first half bodys 11 is provided with the clamping block 18 of some equidistant arrangement, buckling groove 19 is formed between adjacent two clamping blocks 18, stagger and arrange in some clamping blocks 18 and some buckling grooves 19 left and right on the surface of the first half bodys 11, clamping block 18 and the buckling groove 19 of left and right is separated by block 40, same some clamping blocks 18 and some buckling grooves 19 are set on the second half bodys 12, and are buckling grooves 19 unlike the clamping block 18 be located on the first half bodys 11 at the second half body 12 same position places, that is when the first half bodys 11 merge with the second half body 12 phases, clamping block 18 on the first half bodys 11 snaps fit onto in the buckling groove 19 of the second half bodys 12, buckling groove on the first half bodys 11 and the clamping block 18 phase clamping on the second half bodys 12.

Composition graphs 2 and Fig. 3, first movable block 15 comprises the first moving block 151, second movable block comprises the second moving block 161, by the first moving block 151 and the second moving block 161, the rotation realizing the first half bodys 11 and the second half bodys 12 is set, the bottom surface of contiguous block 17 is provided with inclined-plane 171, two inclined-planes 171 form the support strength that a triangle improves contiguous block 17 expansion, holding area 131 is offered between contiguous block 17 and base tube body 13, when the first half bodys 11 and the second half bodys 12 overturn and close, inclined-plane, left side 171 and the inclined-plane, right side 171 of contiguous block 17 draw in holding area 131, gathering space when holding area 131 provides and closes, whole plastic expansion part 10 fills disc base 14 and arrives contiguous block 17 again to base tube body 13 and run through and offer screw hole 30, screw hole 30 squeezing into for screw, counter sink 31 is offered between base tube body 13 and disc base 14, counter sink 31 is for the accommodation of screw spiral shell head, screw spiral shell head is avoided to be exposed scuffing human body, aesthetic measure can also be improved after hidden screw.The circumference tube wall of the first half bodys 11 and the second half bodys 12 is provided with anti-skidding hangnail 111, increases friction when preventing landing when fetching and squeeze in hole and then improve constant intensity.

The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. a plastic expansion part, comprise base tube body and the first half bodys be located on base tube body and the second half bodys, it is characterized in that, described the first half bodys are connected by contiguous block with the second half bodys, described the first half bodys are connected with base tube body by the first movable block, described the second half bodys are connected with base tube body by the second movable block, the spaced surface of wherein said the first half bodys is provided with clamping block, buckling groove is formed between adjacent two clamping blocks, stagger and be arranged through spacing block and separate in described clamping block and buckling groove left and right on the surface of the first half bodys, the surface of described the second half bodys is provided with identical clamping block and buckling groove, when the first half bodys coordinate with the second half bodys, some clamping blocks of the first half bodys snap fit onto in the suitable buckling groove of the second half bodys.

2. a kind of plastic expansion part according to claim 1, it is characterized in that, described base tube body is located on disc base, and described disc base, base tube body and connecting plate run through and be provided with screw hole, and offer counter sink on base tube body and disc base, described counter sink is concentric with screw hole.

3. a kind of plastic expansion part according to claim 1, is characterized in that, the surface of described first movable block and the second movable block is equipped with trapezoidal stiffening rib.

4. a kind of plastic expansion part according to claim 1, is characterized in that, the circumference tube wall of described the first half bodys and the second half bodys is provided with anti-skidding hangnail.