CN201220404Y

CN201220404Y - Chisel for cutting off rivets of refrigerated container

Info

Publication number: CN201220404Y
Application number: CNU2008200246904U
Authority: CN
Inventors: 耿贤春; 姜维尧; 王安然
Original assignee: Qingdao Xin Sanly Reefer-Container Technical Co Ltd
Current assignee: Qingdao Xin Sanly Reefer-Container Technical Co Ltd
Priority date: 2008-07-04
Filing date: 2008-07-04
Publication date: 2009-04-15
Anticipated expiration: 2018-07-04

Abstract

The utility model discloses a chisel which can cut off rivets of a refrigerated container. The chisel is a dedicated tool for cutting off the rivets of the refrigerated container. The chisel has a total length of 27 centimeters; a handle is horizontally held; a chisel head is arranged at the front end of the handle; the chisel head is integrated with the handle; and the chisel and the handle are made of a piece of steel spring plate with the thickness being about 16 millimeters. The chisel head comprises a hitting part and a chisel edge. The hitting part is positioned at the upper part of the chisel head; the hitting surface is perpendicular to the front end surface of the chisel head; the chisel edge is positioned at the lower part of the chisel head; the chisel edge comprises a front edge and a back edge which form a v-shape; and the front edge surface of the chisel edge and the front end surface of the chisel head form an angle of 30 degrees; when a hammer is used to hit the hitting part, the labor is saved because of appropriate strength application angel; and because the chisel edge has a certain thickness, the front edge surface thereof clings to an external side plate of the container in a plane manner so that the chisel edge is hard to be moved when the chisel edge is hit and the stability is good.

Description

Block the chisel that the frozen products insulated container rivet is used

Technical field

The utility model relates to a kind of chisel, is a kind of instrument that the frozen products insulated container rivet is used that blocks that is specifically designed to.

Background technology

In recent years, the development that the frozen products insulated container transport service is being maked rapid progress, and the frozen products insulated container repairing trades also emerge as an emerging industry.Because the architectural feature of frozen products insulated container itself uses some traditional repair outfits not satisfy the repairing requirement.For example repair frozen products insulated container and often will take off outer panel on the tank wall, and outer panel is to be fixed on the reinforcement in the tank wall with rivet, must block rivet earlier if will take off outer panel.

Method of blocking rivet commonly used has two kinds: a kind of is to be used with common chisel and hammer, common chisel chisel edge and strike portion distance, when hitting strike portion with hammer, chisel edge contacts mobile, crooked easily with the round end of rivet, stressed concentrated, be not moved for making chisel edge, must firmly hold chisel, firmly big when operating like this, also injure arm sometimes easily by a crashing object.If shorten distance between common chisel chisel edge and strike portion, staff just can't be held chisel, and therefore common chisel chisel edge and strike portion distance must be grown.Another kind is to use the electric hand drill boring method, promptly earlier makes a locating hole in the round end central authorities of rivet with punching pin, clamps drill bit with electric hand drill again, aims at locating hole and creeps into 2～3mm, and the round end of rivet just falls down.The quantity that needs to block rivet during frozen products insulated container is repaired is a lot, and it is not only time-consuming that obviously this kind blocks the rivet method, and use electric hand drill also to exist potential safety hazard.

The utility model content

The utility model provides a kind of being exclusively used in to block the chisel that the frozen products insulated container rivet is used at blocking the deficiency that exists in common chisel that rivet adopts or the electric hand drill use in the prior art.

Block the chisel that the frozen products insulated container rivet is used, it comprises cutter head and handle, and handle is a transverse-gripping, and the cutter head is arranged on the front end of handle.

Above-mentioned cutter head comprises strike portion and chisel edge, and strike portion is in the top of cutter head, and it hits, and the plane is vertical with the front end face of cutter head, and chisel edge is in the bottom of cutter head, and chisel edge has lip surface and rear edge face, and the two-edged face becomes " v " type.

The lip surface of above-mentioned chisel edge becomes 30 degree angles with the front end face of cutter head, and lip surface becomes 45～55 degree angles with the rear edge face, and rear edge face rear has subtriangular inner groovy.

The height of above-mentioned cutter head is 35～45 millimeters.

The width of above-mentioned chisel edge is 12～20 millimeters.

The degree of depth of above-mentioned inner groovy is 10～20 millimeters; 22～32 centimetres of chisel total lengths.

Above-mentioned chisel edge is the chisel edge through Quenching Treatment.

Wavy surface is made in the bottom of above-mentioned handle.

Above-mentioned cutter head and handle are connected as a single entity, and are made by a block of material.

Above-mentioned cutter head and handle are that 12～20 millimeters steel spring plate is made by thickness.

The beneficial effects of the utility model:

1, the strike plane of a cutter strike portion is vertical with the front end face of cutter head, and the lip surface of chisel edge becomes 30 degree angles with the front end face of cutter head.During use, the lip surface of chisel edge is close to the outer panel of container, and the plane nature of strike portion becomes 60 degree angles with the outer panel of container, when using hammer to hit strike portion, because of angle out of strength is suitable, so laborsaving; Because chisel edge has certain thickness, its lip surface is an outer panel of being close to container with plane form again, and chisel edge is not easy to move during strike, good stability.

2, the height of cutter head is 40 millimeter, and the chisel edge of chisel and strike portion are apart from weak point, and hitting power is concentrated when hitting with hammer, has the labour-saving advantage.

3, the chisel total length is about 27 centimetres, and the handle of chisel is away from the cutter head, and good stability during use also is not easy to injure arm.

4, wavy surface is made in the handle bottom, and handle grip is not sliding, is not easy to grind hand yet, and stability is strong.

5, the cutter head and the handle of chisel are connected as a single entity, and are made by a block of material, have advantage safe in utilization, handling ease.

Description of drawings

Fig. 1 is the structural representation that blocks the chisel that the frozen products insulated container rivet uses;

Fig. 2 be among Fig. 1 A-A to cutaway view;

Fig. 3 is the user mode figure that blocks the chisel that the frozen products insulated container rivet uses;

The force analysis figure of chisel when Fig. 4 is use.

Below in conjunction with accompanying drawing the utility model is elaborated:

The specific embodiment

In conjunction with Fig. 1, Fig. 2, block the chisel that the frozen products insulated container rivet is used, 22,27 or 32 centimetres of chisel total lengths, this chisel comprises cutter 1 and handle 2, cutter 1 highly is 35,40 or 45 millimeters, and handle 2 is made wavy surface for the transverse-gripping bottom, cuts a hole 1 front end that is arranged on handle 2, cutter 1 is connected as a single entity with handle 2, is that 12,16 or 20 millimeters steel spring plate is made by a thickness.Cutter 1 comprises strike portion 101 and chisel edge 102, strike portion 101 is in the top of cutter 1, and it is vertical with a front end face of cutting a hole 1 that it hits plane, and chisel edge 102 is done Quenching Treatment, its position is in the bottom of cutter 1, and the width of chisel edge 102 is identical with the steel spring plate thickness of use.Chisel edge 102 has lip surface 1021 and rear edge face 1022, the two-edged face becomes " v " type, the lip surface 1021 of chisel edge 102 becomes 30 degree angles with the front end face of cutter 1,

lip surface

1021 and 1022 one-tenth 45 in rear edge face, 50 or 55 degree angles, rear edge face 1022 rears have subtriangular inner groovy 3, inner groovy 3 dark 10,15 or 20 millimeters.

In conjunction with Fig. 3, Fig. 4, using method to chisel describes: during use, one holds handle 2, with the rivet round end upper edge on the chisel edge 102 aligning containers, the lip surface 1021 of chisel edge 102 is close to the outer panel of container, the plane of the portion of strike at this moment 101 just becomes 60 degree angles naturally with the container outer panel, when using hammer to hit strike portion, its force analysis as shown in Figure 3.

Hitting power is: F

Block 60 °=0.866F of rivet component: F1=Fsin

Extruding outer panel component: 60 °=0.5F of F2=Fcos

Suitable because of hitting angle, thus when hitting laborsaving very easily just can round-nose chipping tool with rivet under.

Because the lip surface 1021 of chisel chisel edge 102 is close to the container outer panel, so chisel edge 102 is not easy to move when hitting, good stability, and if common chisel when being attached to sword face of chisel edge on the outer panel, hold the hand of chisel and will run on the outer panel, easily hinder arm during strike.Because this chisel handle 2 is longer, the hand of gripping handle 2 is big apart from strike portion distance, good stability during operation, and laborsaving, also be not easy to hinder arm.The chisel edge 102 of chisel is little with the distance of strike portion 101, and stressed concentrating during strike only arranged about 40mm.Meeting saving of labor, laborsaving, safety when so the chisel that uses the utility model to provide blocks the frozen products insulated container rivet.In addition, cutter of this chisel 1 and handle 2 are connected as a single entity, and are that a block of material is made, so handling ease.

Certainly; above-mentioned explanation is not to be to restriction of the present utility model; the utility model also be not limited in above-mentioned for example, variation, remodeling, interpolation or replacement that those skilled in the art are made in essential scope of the present utility model also should belong to the protection domain of utility model.

Claims

1, block the chisel that the frozen products insulated container rivet is used, it comprises cutter head and handle, and it is characterized in that: handle is a transverse-gripping, and the cutter head is arranged on the front end of handle.

2, according to claim 1ly block the chisel that the frozen products insulated container rivet is used, it is characterized in that: described cutter head comprises strike portion and chisel edge, strike portion is in the top of cutter head, it is vertical with the front end face of cutter head that it hits the plane, chisel edge is in the bottom of cutter head, chisel edge has lip surface and rear edge face, and the two-edged face becomes " v " type.

3, according to claim 2ly block the chisel that the frozen products insulated container rivet is used, it is characterized in that: the lip surface of described chisel edge becomes 30 degree angles with the front end face of cutter head, lip surface becomes 45～55 degree angles with the rear edge face, rear edge face rear has subtriangular inner groovy.

4, describedly block the chisel that the frozen products insulated container rivet is used according to claim 2 or 3, it is characterized in that: the height of described cutter head is 35～45 millimeters.

5, according to claim 3ly block the chisel that the frozen products insulated container rivet is used, it is characterized in that: the degree of depth of described inner groovy is 10～20 millimeters; 22～32 centimetres of chisel total lengths.

6, according to claim 5ly block the chisel that the frozen products insulated container rivet is used, it is characterized in that: the width of described chisel edge is 12～20 millimeters.

7, according to claim 2ly block the chisel that the frozen products insulated container rivet is used, it is characterized in that: described chisel edge is the chisel edge through Quenching Treatment.

8, describedly block the chisel that the frozen products insulated container rivet is used according to claim 1,2 or 3, it is characterized in that: wavy surface is made in the bottom of described handle.

9, according to claim 8ly block the chisel that the frozen products insulated container rivet is used, it is characterized in that: described cutter head is connected as a single entity with handle, is made by a block of material.

10, according to claim 9ly block the chisel that the frozen products insulated container rivet is used, it is characterized in that: described cutter head and handle are that 12～20 millimeters steel spring plate is made by thickness.