Knife switch for cutting decorative lightgage steel joist

Abstract

The utility model relates to a knife switch for cutting a decorative light steel keel, and belongs to the technical field of building decoration equipment. The knife switch comprises a knife body and a knife handle, the knife body comprises a first cutting knife and a second cutting knife which are hinged, the first cutting knife is fixed on the knife holder, one end of the second cutting knife is connected with the knife handle, and the first cutting knife and the second cutting knife are respectively and correspondingly provided with a through keel cutting hole. And cutting edges of the first cutter and the second cutter are arranged along the keel cutting hole. The knife switch designed by the utility model can quickly and accurately cut the keel, is convenient to use, and improves the decoration construction speed.

Description

Technical Field

[0001] The utility model relates to the technical field of building decoration equipment, in particular to a knife for cutting decorative light steel keels. Background Art

[0002] In interior decoration, keels are essential materials. Almost all suspended ceiling renovations require them to form the foundational support structure. To improve the construction efficiency of the keel support structure, we have developed a lightweight steel keel with cutting notches. These notches are evenly spaced at specific lengths. During on-site construction, the keel can be quickly cut according to the required dimensions, eliminating the need for construction workers to measure the keel and significantly improving construction efficiency. Existing keel cutting equipment typically uses electric cutters when cutting lightweight steel keels on construction sites. These electric cutters are subject to power supply constraints and cannot be used or are inconvenient in locations with inaccessible power supplies. Furthermore, the sound produced by electric cutters during the cutting process is extremely harsh, resulting in significant noise pollution. Summary of the Invention

[0003] In order to solve the problems in the prior art, the utility model patent designs a knife for cutting decorative light steel keels to solve the problem that the existing on-site cutting equipment for light steel keels has unsatisfactory performance.

[0004] The technical solution adopted by the utility model is as follows: the gate knife includes a knife body and a knife handle, the knife body includes a first cutter and a second cutter stacked side by side, the first cutter is fixed on the knife seat, one end of the first cutter and the second cutter is hinged, and the other end of the second cutter is connected to the knife handle, the first cutter and the second cutter are respectively provided with corresponding penetrating keel cutting holes, and the blades of the first cutter and the second cutter are arranged along the keel cutting holes.

[0005] Furthermore, a keel positioning groove is fixed on the knife holder at a side of the first cutter away from the second cutter, and the keel positioning groove is arranged corresponding to the keel cutting hole of the first cutter.

[0006] Furthermore, the end of the handle is a connecting disc, the top of which is hinged to the upper front end of the first cutter. The connecting disc is located on the upper side of the front end of the second cutter and is connected to the front end of the second cutter through a connecting rod. The two ends of the connecting rod are respectively hinged to the connecting disc and the second cutter.

[0007] Furthermore, the bottom end of the connecting disc is pressed against the upper end surface of the front side end of the second cutter, and the connecting rod has a long through hole along its length, and is connected to the connecting disc and the second cutter respectively through a pin shaft passing through the long through hole.

[0008] Furthermore, a stopper is welded on the top of the first cutter near the second cutter. When the keel cutting holes of the first cutter and the second cutter completely overlap, the top of the second cutter just rests against the lower side of the stopper.

[0009] Furthermore, the keel cutting hole is a C-shaped hole, which has the same cross-sectional shape as the cut keel.

[0010] Furthermore, a cutting length marking line is provided on the keel positioning groove.

[0011] Compared with the prior art, the advancement of the guillotine knife for cutting decorative light steel keels designed by the utility model is that: the first cutter and the second cutter of the guillotine knife are correspondingly provided with keel cutting holes, the keel cutting holes have the same cross-sectional shape as the keel to be cut, and the light steel keel to be cut passes through, the blades of the first cutter and the second cutter are arranged along the keel cutting holes, and the light steel keel can be cut by pressing the knife handle to cause the hinged first cutter and the second cutter to be misaligned. It is easy to use, does not need to be restricted by power supply, and the entire cutting process does not generate noise; the connecting plate at the top of the knife handle is connected to the second cutter through a connecting rod with a long perforation The cutters are connected so that the second cutter can be pulled back to its original position through the knife handle without interfering with the downward cutting of the second cutter. A stopper is provided on the upper side of the first cutter to limit the return process of the second cutter, so that the keel cutting holes on the two cutters can be completely aligned after the return. A keel positioning groove is provided on one side of the first cutter by the knife holder, and the keel positioning groove is aligned with the keel cutting hole on the cutter, so that the cut keel can be inserted into the keel cutting hole quickly and accurately. At the same time, a marking line is provided on the keel positioning groove to facilitate the rapid positioning of the cutting position and cutting size of the keel, thereby improving the cutting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of a knife used for cutting decorative light steel keels.

[0013] Figure 2 The utility model is a schematic diagram of the front view structure of the second cutting knife of the guillotine knife for cutting decorative light steel keels.

[0014] In the figure, 1 is the first cutter, 2 is the second cutter, 3 is the knife handle, 4 is the knife seat, 5 is the keel positioning groove, 6 is the keel cutting hole, 11 is the stopper, 31 is the connecting disc, 32 is the connecting rod, 33 is the long through hole, and 51 is the marking line. DETAILED DESCRIPTION

[0015] The present invention is further described below with reference to the accompanying drawings and specific embodiments. The technical solutions in the embodiments of the present invention are clearly and completely described. The embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0016] like Figure 1 、 2 As shown, the utility model patent designs an embodiment of a guillotine for cutting decorative light steel keels. In this embodiment, the guillotine includes a knife body, a knife handle 3, and a knife seat 4. The knife body is set on the knife seat 4 and includes a first cutter 1 and a second cutter 2 stacked side by side. The bottom of the first cutter 1 is fixed to the knife seat 4. The rear ends of the first cutter 1 and the second cutter 2 are hinged. The first cutter 1 and the second cutter 2 are respectively provided with a through-keel cutting hole 6. The keel cutting hole 6 is a C-shaped hole with the same cross-sectional shape as the keel to be cut. The hole width is about 5mm, and the hole diameter is widened at the bend at the top of both sides. The blades of the first cutter 1 and the second cutter 2 are respectively set along their respective keel cutting holes 6.

[0017] The handle 3 ends at a connecting disc 31. The top of the connecting disc 31 is hingedly connected to the upper front end of the first cutter 1 via a pin. The connecting disc 31 is located above the front end of the second cutter 2 and is connected to the front end of the second cutter 2 via a connecting rod 32. The connecting rod 32 has a long through-hole 33 along its length. The long through-hole 33 is connected to the connecting disc 31 and the second cutter 2 via a pin and a retaining plate, respectively. The long through-hole 33 of the connecting rod 32 is freely slidable. The lower end surface of the connecting disc 31 abuts against the upper front end of the second cutter 2. When the handle 3 is pressed downward, the connecting disc 31 rotates around the connecting pin at its front end, and its lower end surface presses down on the front end of the second cutter 2 to complete the cutting action. When the handle 3 is lifted upward, the connecting disc 31 can drive the second cutter 2 upward and reset via the connecting rod 32.

[0018] A stopper 11 is welded to the top of the first cutter 1 on the side close to the second cutter 2. When in the initial position, the keel cutting holes 6 on the first cutter 1 and the second cutter 2 are completely aligned, and the lower end face of the stopper 11 just abuts against the upper end face of the second cutter 2.

[0019] In addition, the blade holder 4 is fixed with a keel positioning groove 5 on the side of the first cutter 1 away from the second cutter 2. The keel positioning groove 5 is a U-shaped groove and is located directly opposite the keel cutting hole 6 of the first cutter 1. The keel positioning groove 5 is provided with a cutting length marking 51, which is set according to the distance between the cutting edges of the light steel keel to be cut.

[0020] When the decorative light steel keel cutting knife disclosed in the utility model is used, the light steel keel is directly pushed forward along the keel positioning groove 5 into the keel cutting hole 6. According to the required use length, the position of the cutting opening is aligned with the cutting mark 51 on the positioning groove. The knife handle 3 is pressed downward. During the rotation of the connecting disc 31 at the front end of the knife handle 3, the second cutter 2 is pressed downward, so that the keel cutting holes 6 of the two cutters are misaligned, thereby completing the cutting of the light steel keel.

[0021] The above contents are merely preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. That is, any simple equivalent changes and modifications made in accordance with the claims and description of the present invention are still within the scope of the present invention.

Claims

1. A knife for cutting decorative light steel keels, comprising a knife body and a knife handle, characterized in that: The knife body includes a first cutter and a second cutter stacked side by side, the first cutter is fixed on the knife seat, one end of the first cutter and the second cutter is hinged, and the other end of the second cutter is connected to the knife handle, and the first cutter and the second cutter are respectively provided with corresponding penetrating keel cutting holes, and the blades of the first cutter and the second cutter are arranged along the keel cutting holes.

2. A guillotine for cutting decorative light steel keels according to claim 1, characterized in that: The knife seat is fixed with a keel positioning groove on a side of the first cutter away from the second cutter, and the keel positioning groove is arranged corresponding to the keel cutting hole of the first cutter.

3. A guillotine for cutting decorative light steel keels according to claim 2, characterized in that: The end of the handle is a connecting disc, the top of which is hinged to the upper front end of the first cutter. The connecting disc is located on the upper side of the front end of the second cutter and is connected to the front end of the second cutter through a connecting rod. The two ends of the connecting rod are respectively hinged to the connecting disc and the second cutter.

4. A guillotine for cutting decorative light steel keels according to claim 3, characterized in that: The bottom end of the connecting disc is pressed against the upper end surface of the front side end of the second cutter. The connecting rod is provided with a long through hole along its length and is connected to the connecting disc and the second cutter respectively through a pin shaft passing through the long through hole.

5. A guillotine for cutting decorative light steel keels according to claim 4, characterized in that: A stopper is welded on the top of the first cutter near the second cutter. When the keel cutting holes of the first cutter and the second cutter completely overlap, the top of the second cutter just abuts against the lower side of the stopper.

6. A guillotine for cutting decorative light steel keels according to claim 5, characterized in that: The keel cutting hole is a C-shaped hole.

7. A guillotine for cutting decorative light steel keels according to claim 6, characterized in that: A cutting length marking line is provided on the keel positioning groove.

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