CN220058677U - Novel hand-held seam retracting knife - Google Patents

Abstract

The utility model relates to a novel hand-held seam-retracting knife which comprises a knife handle, wherein one end of the knife handle is detachably provided with a circular arc-shaped blade, the other end of the knife handle is detachably provided with a trapezoid scraping blade, the end part of the circular arc-shaped blade is provided with a connecting piece, the upper side wall and the lower side wall of one end, close to the circular arc-shaped blade, of the knife handle are respectively provided with a mounting block corresponding to the connecting piece, a slot is arranged between the mounting block and the knife handle, the connecting piece penetrates through the slot, the mounting blocks and the connecting piece are correspondingly provided with round holes, the knife handle is provided with threaded holes corresponding to the round holes, and the connecting piece penetrates through the round holes through bolts and is screwed into the threaded holes to be fixed. The utility model solves the problems of inconsistent pointing depth, uneven overlap joint of vertical joints and cross joints and wall pollution.

Description

Novel hand-held seam retracting knife

Technical Field

The utility model relates to the field of constructional engineering, in particular to a novel hand-held seam retracting knife.

Background

In the current stage, the gap between two adjacent building block materials is filled with mortar, so that the connection between the upper building block material, the lower building block material, the left building block material and the right building block material is more firm, the wind and rain are prevented from invading the wall, the wall is clean, neat and attractive, and a tool trowel and a pointing clip are commonly used for closing the gap.

The existing solution has the following disadvantages in seam closing:

1. inconsistent pointing depth exists;

2. the vertical seams are not real, and the cross seams are not flat;

3. the residues in the wall joints are not cleaned, and the wall surface is seriously polluted by mortar.

The above reasons are all caused by the fact that no formed construction tool is used for assisting in construction, namely, the pointing quality of the wall and the floor tiles is seriously affected by the level of workers.

Disclosure of Invention

The utility model aims to solve the problems that the conventional common tool has poor seam retracting effect, no formed construction tool is used for assisting seam retracting construction, the seam retracting quality of a wall body and a floor tile is seriously influenced by the level of workers, and provides a novel hand-held seam retracting knife which can effectively solve the problems of inconsistent seam retracting depth, uneven lap joint of vertical seams and cross seams and wall surface pollution.

The utility model adopts the following technical scheme to realize the aim: the utility model provides a novel hand-held type seam sword of receiving, including the handle of a knife, handle of a knife one end demountable installation has convex blade, and other end demountable installation has trapezoidal doctor-bar, and convex blade tip is equipped with the connection piece, and the handle of a knife is close to the upper and lower lateral wall of convex blade's one end and is equipped with the installation piece that corresponds with the connection piece respectively, is equipped with the slot between installation piece and the handle of a knife, and the connection piece passes the slot, corresponds on installation piece and the connection piece to be equipped with the round hole, is equipped with the screw hole that corresponds with the round hole on the handle of a knife, and the connection piece passes the round hole through the bolt and precession screw hole internal fixation.

In particular, the handle is provided with a hand-holding part.

In particular, one side of the circular arc-shaped blade is a sharpening surface, and the other side is a non-sharpening surface.

In particular, the mounting block is provided with a groove, and the bolt on the mounting block is positioned in the groove.

Particularly, the front side wall and the rear side wall of the knife handle, which are close to one end of the trapezoid scraping blade, are correspondingly provided with mounting plates, through holes are correspondingly formed between the mounting plates and the trapezoid scraping blade, and the mounting plates and the trapezoid scraping blade penetrate through the through holes through bolts and are fixed by screwing nuts.

The beneficial effects of the utility model are as follows: the knife handle, the circular arc-shaped blade and the trapezoid scraping blade are arranged, so that the knife handle is simple in structure, convenient to manufacture, convenient to replace and convenient to use; the arc-shaped blades are embedded between gaps of the building blocks, and the pointing depth can be uniform; the mortar joint of the masonry has a compaction effect, and solves the problems of incomplete vertical joints and uneven lap joint at the cross joint; after the seam is closed by the seam closing blade, the extruded mortar is erased by the trapezoid scraping blade, and residues in the seam are trimmed in detail, so that the problem that the wall surface is seriously polluted by the mortar is solved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a handle of the present utility model;

FIG. 3 is a schematic view of a trapezoidal wiper blade according to the present utility model;

FIG. 4 is a schematic view of a circular arc blade of the present utility model;

in the figure: 1-a knife handle; 2-circular arc blade; 3-mounting blocks; 4-connecting sheets; 5-grooves; 6-a hand grip; 7-a trapezoidal scraping blade; 8-mounting plates; 9-slots; 10-through holes; 11-non-sharpening face; 12-sharpening face;

the embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

Detailed Description

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

as shown in figures 1-4, the novel hand-held seam-retracting knife comprises a knife handle 1, wherein one end of the knife handle 1 is detachably provided with a circular arc-shaped blade 2, and the other end of the knife handle is detachably provided with a trapezoid scraping blade 7. When the concrete use, the leather number pole is erected according to the requirement to build. And (3) finding a gauge for the wall surface according to the design and specification requirements, and controlling the flatness and verticality of the wall surface. And wetting the wall surface before the construction is completed and the jointing is performed. The knife handle 1 is held by hand and is tightly held, the circular arc-shaped blade 2 is utilized to sweep and smooth the built mortar joints, the uneven parts of the parts are compacted, and the parts are polished by the trapezoid scraping blade 7.

The handle 1 is provided with the hand holding part 6, so that the handle is convenient to hold and is prevented from falling, specifically, the length of the handle 1 is 20cm, the width is 10mm, the thickness is 4mm, the hand holding part 6 is composed of a plurality of arc grooves, and the depth of each arc groove is 2-3mm.

The end part of the circular arc-shaped blade 2 is provided with a connecting sheet 4, the upper side wall and the lower side wall of one end, close to the circular arc-shaped blade 2, of the cutter handle 1 are respectively provided with a mounting block 3 corresponding to the connecting sheet 4, a slot 9 is arranged between the mounting block 3 and the cutter handle 1, the connecting sheet 4 penetrates through the slot 9, round holes are correspondingly formed in the mounting block 3 and the connecting sheet 4, threaded holes corresponding to the round holes are formed in the cutter handle 1, the connecting sheet 4 penetrates through the round holes through bolts and is screwed into the threaded holes to be fixed, the mounting block 3 is provided with a groove 5, and the bolts on the mounting block 3 are positioned in the groove 5; specifically, one side of the circular arc-shaped blade 2 is a sharpening surface 12, the other side is a non-sharpening surface 11, the width of the circular arc-shaped blade 2 is 4mm, the nominal diameter is 8-12mm, and the thickness of the non-sharpening surface 11 is 1mm. The circular arc-shaped blade 2 is influenced by the building blocks at two sides of the mortar joint, a certain embedding depth is kept, the embedded depth is not disturbed, and the overall consistency of the depth of the mortar joint is ensured in the process of joint shrinkage.

The side wall corresponds around handle of a knife 1 is close to trapezoidal doctor-bar 7 one end and is equipped with mounting panel 8, corresponds between mounting panel 8 and the trapezoidal doctor-bar 7 to be equipped with through-hole 10, and mounting panel 8 and trapezoidal doctor-bar 7 pass through-hole 10 and screw the nut through the bolt and fix, specifically, trapezoidal doctor-bar 7 height 2cm, minor face 1cm, long limit 2cm.

The circular arc-shaped blade 2, the knife handle 1 and the trapezoid scraping blade 7 can be made of high-quality steel, in another embodiment, the circular arc-shaped blade 2 is 7/8 circular arc, and the circular arc-shaped blade 2, the knife handle 1 and the trapezoid scraping blade 7 can be integrally formed and integrally arranged.

The specific implementation steps are as follows:

1. and (3) removing sundries such as wall surface bonding mortar, slurry and the like, and sprinkling water on the wall surface for wetting.

2. For the cement mortar repair of the same color as the wall surface at the corner of the unfilled edge, the tile cutter or other knife-edged tools can be used for chiseling the mortar joint which is too shallow in the process of building the brick wall or is not scratched, and the depth meeting the mortar joint requirement is noted that the mortar joint cannot be hard and prized during chiseling so as not to damage or even disturb the masonry.

3. The pointing material should be 1:1.5 cement mortar mixed by fine sand and cement, the consistency of the mortar is suitable for pointing the distillate to pick up, the pointing mortar should be used along with the mixing, the mortar on the same day should be used up in the same day, and the mortar is not allowed to be used again on the next day.

4. After pointing, the pointing mortar should wait to be slightly absorbed by the brick surface and dried, and the closing knife is used for sweeping the joints, and the horizontal joints and the vertical joints should be swept along the joints during the joint sweeping. The circular arc blade 2 of the seam collecting knife is influenced by the building blocks at two sides of the mortar joint, a certain embedding depth is kept and is not disturbed, the overall consistency of the depth of the mortar joint is ensured in the seam collecting process, and the compacting effect is simultaneously carried out on uncompacted mortar. The mortar joints, especially the wall root and corner, are not smooth and straight, and the mortar in the part is extruded by the joint cutter and is scraped by the trapezoid scraping blade 7 on the other side of the joint cutter.

The utility model has simple structure, convenient manufacture, convenient replacement of the circular arc blade and the trapezoid scraping blade, convenient use and solves the problems of inconsistent pointing depth, uneven overlap joint of vertical joints and cross joints and wall pollution.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the above embodiments, but is intended to cover various modifications, either made by the method concepts and technical solutions of the utility model, or applied directly to other applications without modification, within the scope of the utility model.

Claims (5)

1. The utility model provides a novel hand-held type seam sword of receiving, including handle of a knife (1), a serial communication port, handle of a knife (1) one end demountable installation has convex blade (2), other end demountable installation has trapezoidal doctor-bar (7), convex blade (2) tip is equipped with connection piece (4), lateral wall is equipped with installation piece (3) that correspond with connection piece (4) respectively about the one end that handle of a knife (1) is close to convex blade (2), be equipped with slot (9) between installation piece (3) and handle of a knife (1), connection piece (4) pass slot (9), correspond on installation piece (3) and connection piece (4) and be equipped with the round hole, be equipped with the screw hole that corresponds with the round hole on handle of a knife (1), connection piece (4) pass the round hole through the bolt and precession screw threaded hole is fixed.

2. The novel hand-held seam knife according to claim 1, wherein the knife handle (1) is provided with a hand-holding part (6).

3. The novel hand-held seam knife according to claim 2, wherein one side of the circular arc-shaped blade (2) is a sharpening surface (12), and the other side is a non-sharpening surface (11).

4. A novel hand-held joint knife according to claim 3, characterized in that the mounting block (3) is provided with a groove (5), and the bolt on the mounting block (3) is positioned in the groove (5).

5. The novel hand-held slotting cutter according to claim 4, wherein the front side wall and the rear side wall of the cutter handle (1) close to one end of the trapezoid scraping blade (7) are correspondingly provided with mounting plates (8), through holes (10) are correspondingly formed between the mounting plates (8) and the trapezoid scraping blade (7), and the mounting plates (8) and the trapezoid scraping blade (7) penetrate through the through holes (10) through bolts and are fixed by screwing nuts.