CN208036908U - A kind of cover of triple seam - Google Patents

Abstract

The utility model discloses a kind of covers of triple seam, including end cap, the lower wall of the end cap the first crimping successively, second crimping, third crimping, opening is offered in the middle part of the upper side wall of the end cap, it is fixedly connected with cover board on the inner wall of the opening, draw ring is fixed with by rivet on the cover board, pulling mouth is offered on the draw ring, the inner wall of the pulling mouth is handled by sanding and polishing, the junction of the cover board and opening offers indentation, first crimping is the outside extension edge of smooth curved, second crimping is the concave edge being recessed inwardly, the third crimping is the chimb swelled outward.The utility model is by being arranged triple seam, stable occlusion is carried out to tank body by pressure official post cover different above and below the second crimping, by the way that end cap and extension edge is arranged to pressure into row buffering, it is not easy the damage that is crushed out of shape, ensure cover intensity and bending resistance, cover is avoided to fall off, it is simple in structure, it is convenient and practical.

Description

A kind of cover of triple seam

Technical field

The utility model is related to cover technical field more particularly to a kind of covers of triple seam.

Background technology

Hermetically sealed can includes tank body and cover, and application number 200480028487.9 discloses the tank of a kind of ladle bowl and double seam The patent of invention at end provides a kind of cover with double seam, is engaged to tank body by the protuberance for being arranged outside, has There are certain intensity and bending resistance, but when cover of double seam in the prior art is engaged tank body is not sufficiently stable, When cover upper end is by extraneous pressure, easily occur becoming to contract in the middle part of cover when being under pressure using the cover of double seam Shape is damaged, and is expanded outwardly on the outside of cover and cover is caused to fall off, applicability is relatively low.

Utility model content

When being engaged to tank body purpose of the utility model is to solve the cover of double seam in the prior art It is not sufficiently stable, when cover upper end is by extraneous pressure, easily occurs when being under pressure using the cover of double seam in the middle part of cover Inside contraction distortion damage, cover outside, which expands outwardly, causes cover to fall off, the relatively low problem of applicability, and the one kind three proposed The cover on rewinding side.

To achieve the goals above, the utility model uses following technical solution：

A kind of cover of triple seam, including end cap, the lower wall of the end cap the first crimping, the second crimping, successively Three crimpings offer opening in the middle part of the upper side wall of the end cap, cover board, the lid are fixedly connected on the inner wall of the opening Draw ring is fixed with by rivet on plate, pulling mouth is offered on the draw ring, the inner wall of the pulling mouth is handled by sanding and polishing, institute The junction for stating cover board and opening offers indentation, and first crimping is the outside extension edge of smooth curved, the volume Two While being the concave edge being recessed inwardly, the third crimping is the chimb swelled outward.

Preferably, the end cap and the first crimping, the second crimping and third crimping are integrally formed.

Preferably, the end cap and the first crimping, the second crimping, third crimping and cover board are all made of the T4CA of 0.21mm thickness Material is made.

Preferably, the internal diameter of the chimb is 0.15mm, and the internal diameter of the concave edge is 0.25mm, the internal diameter of the extension edge For 1.02mm.

Preferably, side of the extension edge far from the second crimping is partial to the lower wall of 5 ° and end cap in central axis outward It is fixedly connected.

Preferably, the outer wall of the end cap is equipped with the buffering end swelled outward, and the thickness of the end cap is 2mm.

In the utility model, end cap is mounted on tank body, tank wall is engaged by the chimb being recessed inwardly, Outer extension edge is slided to by the chimb peace swelled outward in the upper and lower sides setting of chimb, the upper and lower sides of chimb is made to form pressure Difference carries out stable occlusion convenient for chimb to tank body, by the way that end cap and extension edge is arranged when the outside of tank body is under pressure into slow Punching, avoid easily expands outwardly crimping when traditional double seam is under pressure falls off, by pulling draw ring to make cover board from cover Upper disengaging, cover stay on tank body, save material, while avoiding cover and throwing out pollution environment, economical environment-protective without care.This practicality is new Type carries out stable occlusion by the way that triple seam is arranged, by pressure official post cover different above and below the second crimping to tank body, passes through End cap and extension edge are set to pressure into row buffering, are not easy the damage that is crushed out of shape, ensures cover intensity and bending resistance, avoids Cover falls off, simple in structure, convenient and practical.

Description of the drawings

Fig. 1 be the utility model proposes a kind of triple seam cover structural schematic diagram；

Fig. 2 be the utility model proposes a kind of triple seam cover A-A direction views；

Fig. 3 be the utility model proposes a kind of triple seam cover overlook structural schematic diagram；

Fig. 4 be the utility model proposes a kind of triple seam cover part A amplification structural schematic diagram.

In figure：1 end cap, 2 first crimpings, 3 second crimpings, 4 third crimpings, 5 cover boards, 6 draw rings, 7 chimbs, 8 concave edges, 9 are prolonged Stretch side.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.

In the description of the present invention, it should be understood that term "upper", "lower", "front", "rear", "left", "right", The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only The utility model and simplifying describes for ease of description, do not indicate or imply the indicated device or element must have it is specific Orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.

Referring to Fig.1-4, a kind of cover of triple seam, including end cap 1, the lower wall of end cap 1 the first crimping 2, successively Two crimpings 3, third crimping 4, end cap 1 and the first crimping 2, the second crimping 3 and third crimping 4 are integrally formed, ensure that end cap 1 with The intensity of 4 entirety of first crimping 2, third crimping and third crimping, the outer wall of end cap 1 are equipped with the buffering end swelled outward, end cap 1 Thickness be 2mm, when outside is squeezed, into row buffering when by the end cap 1 of 2mm thickness to the pressure of outside, avoid pressure Power, which is transmitted on the first crimping 2, the second crimping 3 and third crimping 4, to be caused to expand outwardly the problem of falling off, the upper side wall of end cap 1 Middle part offer opening, cover board 5, end cap 1 and the first crimping 2, the second crimping 3, third are fixedly connected on the inner wall of opening The T4CA materials that crimping 4 and cover board 5 are all made of 0.21mm thickness are made, the T4CA materials of 0.21mm thickness ensure that cover intensity and Corrosion resistance is fixed with draw ring 6 on cover board 5 by rivet, and pulling mouth is offered on draw ring 6, and the inner wall of pulling mouth is thrown by polishing Light processing is avoided and is damaged caused by the inner wall of pulling mouth is excessively sharp to hand, and cover board 5 and the junction of opening offer quarter Trace pulls draw ring 6, cover board 5 to fall off from opening by indentation, you can to complete the unlatching of cover, the first volume by holding pulling mouth Side 2 is the outside extension edge 9 of smooth curved, and the second crimping 3 is the concave edge 8 being recessed inwardly, third crimping 4 be swell outward it is convex Side 7, the internal diameter of chimb 7 are 0.15mm, and the internal diameter of concave edge 8 is 0.25mm, and the internal diameter of extension edge 9 is 1.02mm, by setting to The concave edge 8 of sunken inside carries out the occlusion of tank body, and 3 upper and lower sides of the second crimping form different pressure differences, cover is made preferably to be engaged Tank mouth, side of the extension edge 9 far from the second crimping 3 are partial to 5 ° outward in central axis and are fixedly connected with the lower wall of end cap 1.

In the utility model, end cap 1 is mounted on tank body, tank wall is stung by the chimb 7 being recessed inwardly It closes, outer extension edge 9 is slided to by 7 peace of chimb swelled outward in the upper and lower sides setting of chimb 7, makes the upper and lower sides of chimb 7 Form pressure difference, stable occlusion carried out to tank body convenient for chimb 7, by be arranged end cap 1 and extension edge 9 the outside of tank body by Into buffering when pressure, avoid easily expands outwardly crimping when traditional double seam is under pressure falls off, by pulling draw ring 6 to make Cover board 5 is detached from from cover, and cover stays on tank body, saves material, while being avoided cover and being thrown out pollution environment without care, and ring is saved It protects.

The preferable specific implementation mode of the above, only the utility model, but the scope of protection of the utility model is not Be confined to this, any one skilled in the art within the technical scope disclosed by the utility model, according to this practicality Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model Within enclosing.

Claims (6)

1. a kind of cover of triple seam, including end cap (1), which is characterized in that the lower wall of the end cap (1) first volume successively Side (2), the second crimping (3), third crimping (4) offer opening in the middle part of the upper side wall of the end cap (1), the opening It is fixedly connected with cover board (5) on inner wall, draw ring (6) is fixed with by rivet on the cover board (5), is opened up on the draw ring (6) There are pulling mouth, the inner wall of the pulling mouth to be handled by sanding and polishing, the cover board (5) and the junction of opening offer indentation, institute It is the outside extension edge (9) of smooth curved to state the first crimping (2), and second crimping (3) is the concave edge (8) being recessed inwardly, institute It is the chimb (7) swelled outward to state third crimping (4).

2. a kind of cover of triple seam according to claim 1, which is characterized in that the end cap (1) and the first crimping (2), the second crimping (3) and third crimping (4) are integrally formed.

3. a kind of cover of triple seam according to claim 1, which is characterized in that the end cap (1) and the first crimping (2), the second crimping (3), third crimping (4) and cover board (5) are all made of the T4CA materials of 0.21mm thickness and are made.

4. a kind of cover of triple seam according to claim 1, which is characterized in that the internal diameter of the chimb (7) is The internal diameter of 0.15mm, the concave edge (8) are 0.25mm, and the internal diameter of the extension edge (9) is 1.02mm.

5. a kind of cover of triple seam according to claim 1, which is characterized in that the extension edge (9) is far from second It is partial to 5 ° outward in central axis and is fixedly connected with the lower wall of end cap (1) in the side of crimping (3).

6. a kind of cover of triple seam according to claim 1, which is characterized in that the outer wall of the end cap (1) is equipped with The thickness at the buffering end swelled outward, the end cap (1) is 2mm.