CN218313330U - Opening chisel - Google Patents

Abstract

The utility model discloses an open chisel, which comprises a body and an insert, wherein the body is provided with a head part, the head part is provided with a groove and a reinforcing part, one end of the reinforcing part is connected with the outer side wall of the groove, the other end of the reinforcing part is connected with the body, and the insert part is embedded into the groove and is in interference fit with the groove; the utility model discloses intensity is high, convenient to use, be difficult for droing.

Description

Opening chisel

Technical Field

The utility model relates to an opening chisel.

Background

The opening chisel specifically means that a recess that has the opening is seted up on the body head, then fills in the inserts part to the recess in, the inserts exposes and is equipped with cutting part or tooth portion on the head outside part to realize the effect of whole chisel, through with the electrical equipment cooperation, thereby form the broken or grooved effect of impact.

However, in the existing opening chisel, because the side wall of the groove is thin, after heat treatment, the side wall of the groove can deform, so that the insert cannot be normally plugged into the groove.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides an opening chisel.

The utility model discloses the technical scheme who solves its technical problem and adopt is: the utility model provides an opening chisel, wherein, includes body and inserts, is equipped with the head on the body, is equipped with recess and rib on the head, and rib one end is connected with the outside wall of recess, and the other end and this body coupling, the inserts part imbeds to the recess in and be interference fit with the recess.

Adopt this kind of structure setting for the intensity of head improves, and the head after thermal treatment can not take place to warp yet, has realized the fixed effect of being connected between recess and the inserts, adopts the interference fit of inserts and recess simultaneously, because whole chisel is the impact motion, so its direction of motion is unanimous with inserts, recess complex direction, and the impact force can order about the inserts and further imbed to the recess in, makes inserts and recess firmly fixed.

Wherein the width of the reinforcing part is at least three times of the width of the groove.

The width of the reinforcing part is limited, the strength of the side wall of the groove is further improved, and therefore the reinforcing effect of the overall strength is achieved.

The head comprises a first round table and a second round table, the first round table is connected with the body through the second round table, and the groove penetrates through the first round table and extends into the second round table.

By adopting the structure, the integral strength of the head is further improved, and the processing is more convenient.

The bottom surface of the first round platform is attached to the bottom surface of the second round platform.

The two are matched to form a structure with a large middle and small two ends, and the structure better conforms to the integral structure and the aesthetic property.

Wherein, the inserts are provided with limiting ribs, and the top surfaces of the grooves are positioned on the motion tracks of the limiting ribs.

The setting of spacing muscle has formed spacing effect, prevents that the inserts from excessively stretching into to the recess in, simultaneously, the top surface of spacing muscle and recess forms the fixed effect of centre gripping, forms dual fixed, improves the fixed strength between inserts and the recess.

Wherein, the top surface of recess is the plane.

And the fixing strength between the insert and the groove is further improved by adopting the planar arrangement.

Wherein, spacing muscle is towards outside lateral extension.

Through the setting of horizontal extension, further make and form fixed effect between spacing muscle and the recess, increase fixed strength.

Wherein, the inserts both ends are the symmetry setting.

Adopt the symmetry to set up, formed the double-purpose effect, damaged when the cutting edge of one end or tooth portion, can change the inserts, use the cutting edge or the tooth portion of other one end, improve holistic availability factor.

Wherein, inserts one end and is equipped with the cutting part, is equipped with a plurality of tooth portion on the inserts other end.

By adopting the structure, the dual-purpose effect is formed, and when the end is needed, the dual-purpose effect can be achieved according to the end.

Wherein, the side of the groove part embedded by the insert is trapezoidal.

Adopt trapezoidal structure setting for the recess is filled in to the better of inserts, forms interference fit's effect.

Drawings

Fig. 1 is a front view of embodiment 1 of the present invention;

fig. 2 is a side view of embodiment 1 of the present invention.

Detailed Description

Example 1:

referring to figures 1-2 of the drawings, an open chisel includes a body 1 and an insert 2.

The body 1 comprises a shank 11, a chisel body 12 and a head 13, the shank 11 is connected with the head 13 through the chisel body 12, in this embodiment, the shank 11 can be an A-shaped shank, a B-shaped shank, a C-shaped shank, a D-shaped shank, an E-shaped shank, an F-shaped shank, a G-shaped shank, an H-shaped shank, a J-shaped shank, etc. The chisel body 12 can be selected according to actual requirements, and can be in a regular hexagonal prism shape or a cylindrical shape.

The head 13 comprises a first circular truncated cone 131 and a second circular truncated cone 132, the first circular truncated cone 131 is located below the second circular truncated cone 132, the lower end of the first circular truncated cone 131 is small, the upper end of the first circular truncated cone 131 is large, namely, the bottom surface of the first circular truncated cone 131 is located above the second circular truncated cone 132, the second circular truncated cone 132 is oppositely arranged, the upper end of the first circular truncated cone 131 is small, the lower end of the second circular truncated cone 132 is large, namely, the bottom surface of the second circular truncated cone 132 is located below the first circular truncated cone 131 and the bottom surface of the second circular truncated cone 132 are attached, so that the head 13 forms a structure with a large middle part and small two ends, and the structure and the attractiveness of the whole structure are better met. Here, it should be further noted that the lower end of the first circular truncated cone 131, i.e. the top surface of the groove, is arranged in a plane.

The head 13 is provided with a groove 133 and a reinforcing portion 134, the groove 133 passes through the first round table 131 and extends into the second round table 132, the groove 133 is open towards the lower end, i.e. the top surface of the groove 133 is the lower end of the first round table 131, and two sides of the groove 133 transversely penetrate through the first round table 131 and the second round table 132. In this embodiment, the groove 133 has a rectangular cross section, and the depth of the groove 133 can be adjusted according to actual requirements.

The reinforcement portion 134 is located outside the groove 133, i.e., the first and second round tables 131 and 132 except the groove 133, and the reinforcement portion 134 may be considered as an outer wall of the groove 133. In this embodiment, the width of the reinforcing portion 134 is at least three times the width of the groove 133. The width of the reinforcing part 134 is limited to further increase the strength of the side wall of the groove 133, thereby achieving the reinforcing effect of the entire strength.

Further, in the present embodiment, the body 1 is integrally formed, and may be forged, die-cast, or the like.

One end of the insert 2 is provided with a blade part or a tooth part 21, and the other end is embedded into the groove 133 and is in interference fit with the groove 133. This is the conventional, most basic, open chisel design.

In this embodiment, in order to play the double-purpose effect, so 2 inserts's both ends are the symmetry setting, and 2 inserts both ends are cutting part or 2 inserts's both ends and are tooth portion 21 promptly, again perhaps 2 inserts one serve and be equipped with the cutting part, be equipped with tooth portion 21 on the other end, here technical personnel in the field can select different structure cooperations according to actual demand, satisfy different production demands.

In the present embodiment, the structure of the teeth 21 at both ends of the two symmetrical ends will be described as an example. The whole of inserts 2 is formed for two halfpace concatenations probably, and two halfpace be the symmetry setting, and the halfpace stretches into recess 133 one end less, then crescent to make inserts 2 and recess 133 form interference fit's effect. Here, the insert 2 does not abut against the bottom surface of the groove 133, and a certain gap is formed therebetween.

The insert 2 is provided with a transverse limiting rib 22, the limiting rib 22 is arranged on the front side and the rear side of the insert 2, and the top surface of the groove 133 is located on the motion track of the limiting rib 22. Spacing muscle 22's setting has formed spacing effect, prevents that inserts 2 from excessively stretching into to the recess 133 in, simultaneously, spacing muscle 22 forms the fixed effect of centre gripping with the top surface of recess 133, forms dual fixed, improves the fixed strength between inserts 2 and the recess 133. Further, the stopper rib 22 extends laterally toward the outside. Through the setting of transversely extending, further make between spacing muscle 22 and the recess 133 form fixed effect, increase fixed intensity.

Further, in this embodiment, the insert 2 and the body 1 can be made of two materials, and through the matching of different materials, the production cost can be reduced.

Adopt this kind of structure setting for the intensity of head 13 improves, and the head 13 after thermal treatment can not take place to warp yet, has realized the fixed effect of being connected between recess 133 and the inserts 2, adopts inserts 2 and recess 133's interference fit simultaneously, because whole chisel is the impact motion, so its direction of motion is unanimous with inserts 2, recess 133 complex direction, and the impact force can order about inserts 2 and further imbed to the recess 133 in, makes inserts 2 firmly fixed with recess 133.

Claims (10)

1. An open chisel, characterized by: including body and inserts, be equipped with the head on the body, be equipped with recess and rib on the head, rib one end is connected with the outside wall of recess, and the other end and this body coupling, the inserts part imbeds in to the recess and be interference fit with the recess.

2. An open chisel as defined in claim 1, wherein: the width of the reinforcement is at least three times the width of the groove.

3. An open chisel as defined in claim 1, wherein: the head comprises a first round platform and a second round platform, the first round platform is connected with the body through the second round platform, and the groove penetrates through the first round platform and extends into the second round platform.

4. An open chisel as set forth in claim 3, wherein: the bottom surface of the first round platform is attached to the bottom surface of the second round platform.

5. An open chisel as defined in claim 1, wherein: the insert is provided with a limiting rib, and the top surface of the groove is positioned on the motion trail of the limiting rib.

6. An open chisel as claimed in claim 5, wherein: the top surface of the groove is a plane.

7. An open chisel as defined in claim 6, wherein: the limiting rib transversely extends towards the outer side.

8. An open chisel as defined in claim 1, wherein: the two ends of the insert are symmetrically arranged.

9. An open chisel as defined in claim 1, wherein: one end of the insert is provided with a blade part, and the other end of the insert is provided with a plurality of tooth parts.

10. An open chisel as claimed in claim 1, wherein: the side surface of the insert embedded into the groove part is trapezoidal.

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