CN201310623Y

CN201310623Y - Bayonet catch for fixing sealing bar on mounting surface

Info

Publication number: CN201310623Y
Application number: CNU2008201646228U
Authority: CN
Inventors: 周益智
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-09-22
Filing date: 2008-09-22
Publication date: 2009-09-16
Anticipated expiration: 2018-09-22

Abstract

The utility model discloses a bayonet catch for fixing sealing bar on mounting surface, which is composed of single elastic metal wire and comprises a head matched with the mounting surface, wherein a narrowed neck and a base connected with the head via the neck, wherein two ends of the metal wire are crossed at the neck, while the first end is slightly inclined and extended downward to be coiled to form the base; and the second end is bended at the neck and transversely extended to form a transverse extending part. The utility model further discloses a sealing bar with the bayonet catch, wherein the sealing bar is limited by the transverse extending part of the bayonet catch and the base to avoid clearance between the inner support pipe and the outer sleeve; and in installment, the head of the bayonet catch is retained by the transverse extending part to prevent some part from being extruded into the inner support pipe or the outer sleeve.

Description

Be used for buckle to installation surface fixing seal bar

Technical field

The utility model relates to a kind of being used for Stamping Steel Ribbon or similar device is fixed in buckle on the installation surface, especially for the buckle of oven door Stamping Steel Ribbon.

Background technique

The gate open of electrical equipment such as baking box, refrigerator, microwave oven is everlasting to be equipped with around it and is used to seal or the tubulose Stamping Steel Ribbon of other purposes.This type of Stamping Steel Ribbon generally is made of an interior support tubes and an overcoat pipe fitting, and wherein interior support tubes adopts metal wire knitted to form, and the overcoat pipe fitting then can adopt insulation/hot material such as fiberglass braided forming.Practice shows, in use through for many years folding repeatedly, the sealing bar still has very strong serviceability and better seal to oven door under hot environment.Be used for the typical method that the tubulose Stamping Steel Ribbon is fixed on the oven door be: several independent buckles of arranging along the axial side of Stamping Steel Ribbon are provided, buckle comprises orthogonal head and base, the bottom is embedded in Stamping Steel Ribbon inside, head is stretched out in the hole of inserting on the oven door, so that Stamping Steel Ribbon is fixed on the oven door by Stamping Steel Ribbon.

In the prior art as U.S. Pat 6893025, a kind of gasket set that has buckle is disclosed, described buckle is formed by the several angle bending by an elastic metallic yarn, the head and the base vertical that comprise a rhombus with header planes, described base is changed by at least one circle radius of curvature or constant circumfili constitutes, and have an afterbody, thereby this afterbody is bent downwardly at a certain angle usually with the last lap circumfili and is separated.Find that in long-term using process this buckle is pricked operator's hand easily, and easily glass fibre pierced through, cuts owing to have the afterbody of a perk when Stamping Steel Ribbon is installed, have a strong impact on the Stamping Steel Ribbon performance.And, when braiding, embed relatively difficulty of Stamping Steel Ribbon because this buckle has an afterbody, and can only embed the good Stamping Steel Ribbon of braiding in the mode that screws in, this just needs a large amount of hand labours.When the base of buckle was circumfili greater than a circle, multi layer spiral structure caused glass fibre to reel off raw silk from cocoons when screwing in easily, influences sealing effect.

Moreover, Stamping Steel Ribbon is using or when stressed in the prior art, interior support tubes and overcoat pipe fitting can produce the gap, buckle head when mounted also might be squeezed in interior support tubes or the overcoat pipe fitting part, the position opening that support tubes or overcoat pipe fitting combine with neck in making strengthens, and causes buckle loosening.

Summary of the invention

The utility model provides a kind of being used for that Stamping Steel Ribbon or similar device are fixed in improved buckle on the installation surface, and this buckle can screw in the Stamping Steel Ribbon that has woven, also can embed in the braiding process, firmly effectively.

A kind of buckle that is used for to installation surface fixing seal bar, constitute by single rubber-like wire, comprise a head that agrees with installation surface, a neck that narrows and a base that links to each other by neck with head, described two ends wiry are after neck crosses, the described base of the downward-sloping slightly extension back coiled of first end wherein, described second end wiry forms a horizontal expansion section in bending of neck place and horizontal expansion.

The utility model also provides a kind of Stamping Steel Ribbon, comprise mutually nested interior support tubes and overcoat pipe fitting, the axial side of Stamping Steel Ribbon is arranged several described buckles that is used for to installation surface fixing seal bar, the horizontal expansion section of buckle is positioned at the outer surface of overcoat pipe fitting, the base of buckle is inserted interior support tubes, and horizontal expansion section and base press the tube wall of interior support tubes and the tube wall of overcoat pipe fitting hold together.

The base of buckle of the present utility model is a ring, this ring by the starting end of base to the wire coiled between first end wiry.Support tubes and overcoat pipe fitting in the base of ring is convenient to screw in.

Described head is the diamond shelf structure that two shoulders by an ogival and ogival both sides constitute, and head is vertical with plane, base place, is convenient to head to be agreed with mounting hole or slit into installation surface by ogival.

Described horizontal expansion section roughly with the plane parallel at base place, can the tube wall of interior support tubes and the tube wall of overcoat pipe fitting be pressed with base.

The length of described horizontal expansion section is 1/3～2/3 of base radius, 1/2 of preferred base radius, the length of suitable horizontal expansion section cooperate with base and the tube wall of the tube wall of interior support tubes and overcoat pipe fitting can be pressed to hold together to have to save material and scrape when avoiding installing and be with the overcoat pipe fitting.

The interplanar perpendicular distance at described neck and ring base place is 0.8～1.0mm, this distance basic with interior support tubes tube wall and the tube wall of overcoat pipe fitting with close or smaller, be beneficial to the tube wall of interior support tubes and the tube wall of overcoat pipe fitting compressed

The described wiry first terminal starting end near base, and leave 0.3～0.4mm gap with starting end, support tubes and overcoat pipe fitting in being convenient to first end wiry penetrated are in then base being screwed in support tubes and the overcoat pipe fitting.

Install for ease of buckle, as the further improvement of technical solutions of the utility model, can be provided with wave heave at described base, the formed plane of wave heave is vertical with base.

The position of described wave heave can be near first end wiry, and the end end of wave heave is first end wiry.The position of wave heave also can be at other positions of base.

The quantity of described wave heave can be a plurality of, can lay respectively at the both sides of base when having two.

The utility model buckle simple in structure, wiry first terminal and the base do not have the afterbody of perk on the base in same plane, prevented the glass fibre of buckle wire puncture through seal bar and prick operator's hand in installation process.Moreover, avoided interior support tubes and overcoat pipe fitting to produce the gap by the qualification of horizontal expansion section and base, buckle when mounted head since the horizontal expansion section stop also can the part be squeezed in support tubes or the overcoat pipe fitting.

Description of drawings

Fig. 1 is the perspective view of the utility model buckle.

Fig. 2 is the side view of the utility model buckle.

Fig. 3 is the structural representation of the another kind of mode of execution of the utility model buckle.

Fig. 4 is the structural representation of the third mode of execution of the utility model buckle.

Fig. 5 is the structural representation of the 4th kind of mode of execution of the utility model buckle.

Embodiment

As depicted in figs. 1 and 2, buckle of the present utility model, by single flexible, and rubber-like wire or other suitable material formation.

The wire material is generally stainless steel, and as the semi-harden stainless steel of 304ss, it is circular that the wire cross section is generally, and diameter is 0.5～0.8mm, and typical sizes is 0.635mm.

Buckle of the present utility model comprises a head 1 that agrees with installation surface, a neck that narrows 2 and a base 3 that links to each other by neck 2 with head 1, described two ends wiry are after neck 2 crosses, the described base 3 of the downward-sloping slightly extension back coiled of first end 32 wherein, second end 21 wiry forms a horizontal expansion section 22 in neck 2 places bending and horizontal expansion.

Base 3 is a ring, and this ring is by the starting end 31 of the base 3 wire coiled to wiry first terminal 32.Wiry first terminal 32 the starting end 31 near bases 3, and leave 0.3～0.4mm gap with starting end 31.

Head 1 is the diamond shelf structure that two shoulders by an ogival 11 and ogival 11 both sides constitute, visible shoulder 12 and shoulder 13 among the figure.Head 1 is vertical with plane, base 3 place, is convenient to head 1 to be agreed with mounting hole or slit into installation surface by ogival 11.

The optimum size of buckle head: the distance between base 3 and the ogival 11 is about 10.4mm, and shoulder 12 and shoulder 13 width at wide position are about 4.8mm, and neck 2 is 1.0mm to the perpendicular distance of base 3.

Horizontal expansion section 22 roughly with the plane parallel at base 3 places, the length of horizontal expansion section 22 is about 1/2 of base radius.

Referring to accompanying drawing 3～5, install for ease of buckle, as the further improvement of technical solutions of the utility model, can be provided with wave heave 33 at base 3, wave heave 33 formed planes are vertical with base 3.

The position of wave heave 33 can be near first end 32 wiry, and the end end of wave heave 33 is first end 32 wiry.The position of wave heave 33 also can be at other positions of base.

The quantity of described wave heave can be a plurality of, can lay respectively at the both sides of base 3 when having two, as wave heave 33a among Fig. 5 and wave heave 33b.

The utility model also provides a kind of Stamping Steel Ribbon, comprise mutually nested interior support tubes and overcoat pipe fitting, the axial side of Stamping Steel Ribbon is arranged several described buckles that is used for to installation surface fixing seal bar, the horizontal expansion section 22 of buckle is positioned at the outer surface of overcoat pipe fitting, the base 3 of buckle is inserted interior support tubes, horizontal expansion section 22 presses the tube wall of interior support tubes and the tube wall of overcoat pipe fitting hold together with base 3, avoided interior support tubes and overcoat pipe fitting to produce the gap, buckle when mounted head 1 since horizontal expansion section 22 stop also can the part be squeezed in support tubes or the overcoat pipe fitting.

The method that the utility model buckle is embedded Stamping Steel Ribbon is: push wire first terminal 32 and base 3 place plane separation and come out, if the position of wave heave 33 near first end 32 wiry, then is more conducive to wire first terminal 32 and base 3 place plane separation are come out.With the overcoat pipe fitting of the wire first terminal 32 insertion Stamping Steel Ribbons and by rotating till certain one metal wire of the inner support pipe fitting that tangles Stamping Steel Ribbon, then according to rotating buckle by the ogival 11 of buckle head 1 and the longitudinal axis of neck 2, base 3 just can pass overcoat pipe fitting and inner support metal pipe element, and support tubes below wiry in being in fully.

Certainly, support tubes in also can earlier buckle being screwed in is then around buckle braided glass fibre overcoat pipe fitting.Embed the buckle of Stamping Steel Ribbon, its base 3 places the cavity in the middle of the tubular Stamping Steel Ribbon fully, and head 1 is protruding by the overcoat pipe fitting of Stamping Steel Ribbon.Ogival 11 can insert the hole on the attachment face, two shoulders are owing to be subjected to the extruding contraction of hole, whole head 1 can pass hole, treat that head 1 passes after the hole, shoulder reverts to original size again, because the distance between two shoulders is bigger than bore hole size, the head 1 of buckle can be stuck within the hole securely, and Stamping Steel Ribbon also just is fixed on the attachment face.

Claims

1, a kind of buckle that is used for to installation surface fixing seal bar, constitute by single rubber-like wire, comprise a head that agrees with installation surface (1), a neck that narrows (2) and a base (3) that links to each other by neck (2) with head (1), described two ends wiry are after neck (2) crosses, the downward-sloping slightly extension of first end (32) the wherein back described base of coiled (3) is characterized in that: described second end wiry (21) is located bending and horizontal expansion forms a horizontal expansion section (22) at neck (2).

2, buckle as claimed in claim 1 is characterized in that: described base (3) is a ring, this ring by the starting end (31) of base (3) to the wire coiled between first end wiry (32).

3, buckle as claimed in claim 1 is characterized in that: described head (1) is that head (1) is vertical with base (3) plane, place by the diamond shelf structure of two shoulders formations of an ogival (11) and ogival (11) both sides.

4, buckle as claimed in claim 1 is characterized in that: described horizontal expansion section (22) roughly with the plane parallel at base (3) place, the length of horizontal expansion section (22) is 1/3～2/3 of base (3) radius.

5, buckle as claimed in claim 2 is characterized in that: described neck (2) is 0.8～1.0mm with the interplanar perpendicular distance at ring base (3) place.

6, buckle as claimed in claim 2 is characterized in that: described first end wiry (32) is near the starting end (31) of base (3), and leaves 0.3～0.4mm gap with starting end (31).

7, buckle as claimed in claim 1 is characterized in that: described base (3) has wave heave (33), and the formed plane of wave heave (33) is vertical with base (3).

8, buckle as claimed in claim 7 is characterized in that: described wave heave (33) is near first end wiry (32), and the end end of wave heave (33) is first end wiry (32).

9, buckle as claimed in claim 7 is characterized in that: described wave heave (33) is two, lays respectively at the both sides of base (3).

10, a kind of Stamping Steel Ribbon, comprise mutually nested interior support tubes and overcoat pipe fitting, it is characterized in that: the axial side of Stamping Steel Ribbon is arranged several buckles as claimed in claim 1, the horizontal expansion section (22) of buckle is positioned at the outer surface of overcoat pipe fitting, the base of buckle (3) is inserted interior support tubes, and horizontal expansion section (22) presses the tube wall of interior support tubes and the tube wall of overcoat pipe fitting hold together with base (3).