CN210704923U

CN210704923U - Tool capable of freely stretching and retracting

Info

Publication number: CN210704923U
Application number: CN201921745958.8U
Authority: CN
Inventors: 胡雅雯
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-06-09
Anticipated expiration: 2029-10-18

Abstract

The utility model discloses a cutter that can freely stretch out and draw back belongs to and tailors the cutting means field, has solved among the prior art wallpaper cutter and can not effectively fix in the shell, and the blade can appear when operating personnel uses and has released and withdraw uncontrollable, leads to the problem of incised wound easily, including cutter upper portion, cutter lower part, be equipped with the knife rest of placing the blade in the cutter upper portion, cutter upper portion inner wall is provided with vertical ascending spout, the knife rest with intermediate layer is provided with fixed pipe in the middle of the inner wall of cutter upper portion, just fixed pipe lateral wall is equipped with the guide way from down, the knife rest outer wall is provided with one and passes the guide way along cutter upper portion inner wall the spacing sand grip that the spout slided from top to bottom, the knife rest below lie in set up cutter release mechanism in the cutter lower part. The utility model discloses simple structure, the modern design realizes freely flexible and fixed of blade through spout, guide way, spacing sand grip, cutter release mechanism, uses convenient safety.

Description

Tool capable of freely stretching and retracting

Technical Field

The utility model belongs to tailor the cutting means field, concretely relates to can freely stretch out and draw back cutter.

Background

At present, a wallpaper cutter is a common cutting and tailoring tool in work and study of people, and is particularly widely applied to wallpaper pasting. The existing wallpaper knife mainly comprises a knife shell, a blade, a push handle and a bottom cover.

However, the existing wallpaper knife has many problems in practical use, the function is single, the blade cannot be effectively fixed in the knife shell, the blade is pushed out and retracted uncontrollably or falls off when a user uses the wallpaper knife, the user is easy to accidentally cut himself, and the wallpaper knife has poor hand feeling when in use.

Disclosure of Invention

The utility model provides a technical problem:

to above-mentioned technical shortcoming, in order to solve among the prior art wallpaper sword and can not effectively fix in the sword shell, the blade can appear when operating personnel uses and release and withdraw uncontrollable, leads to the problem of incised wound easily, the utility model provides a but free telescopic cutter.

The utility model discloses technical scheme:

the utility model provides a but free telescopic cutter, including cutter upper portion, cutter lower part, be equipped with the knife rest of placing the blade in the cutter upper portion, cutter upper portion inner wall is provided with vertical ascending spout, the knife rest with intermediate layer is provided with fixed pipe in the middle of the inner wall of cutter upper portion, just fixed pipe lateral wall is equipped with the guide way from down, the knife rest outer wall is provided with one and passes the guide way along cutter upper portion inner wall the spacing sand grip that slides about the spout, the knife rest below in set up cutter release mechanism in the cutter lower part.

Optionally, the cutter ejecting mechanism includes support piece, sleeve, spring, moving part, the support piece overcoat is equipped with the sleeve, support piece deviates from the one end butt of knife rest has the spring, the spring other end butt is in the sleeve, the moving part is fixed the sleeve both sides.

Optionally, one end of the support member facing away from the tool holder is provided with an inward slope.

Optionally, the sleeve is sleeved with the lower portion of the cutter, and the lower portion of the cutter is provided with a side groove matched with the moving piece.

Optionally, the lower part of the cutter is fixedly connected with the fixed pipe.

Optionally, the inner wall of one end of the upper part of the cutter, which is close to the lower part of the cutter, is uniformly provided with grooves distributed at equal intervals.

Optionally, a cover body is arranged at one end of the upper portion of the cutter, which is far away from the lower portion of the cutter, and a through hole matched with the blade is formed in the center of the cover body.

Optionally, the upper cutter portion and the lower cutter portion snap together.

Optionally, the outer side wall of the upper part of the cutter and the outer side wall of the lower part of the cutter are both provided with anti-skid textures.

The utility model discloses beneficial effect:

compared with the prior art, the beneficial effects of this application are: through rotating the cutter lower part, it is rotatory to drive fixed pipe, because the limiting displacement of the vertical spout of cutter upper portion inner wall, the blade rises along with the guide way, and itself can not take place rotatoryly, and the operator just can realize the flexible of blade through simple rotation, simultaneously the utility model discloses greatly reduced cuts personnel's probability, uses more safely.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1 is a schematic diagram of the explosion structure of the present invention.

Fig. 2 is an enlarged schematic structural diagram of a point a in fig. 1 according to the present invention.

Fig. 3 is a schematic view of the assembled state of the present invention.

Fig. 4 is a schematic view of a certain angle on the upper part of the middle cutter of the present invention.

Fig. 5 is another angle diagram of the upper part of the middle cutter of the present invention.

Reference numbers in the figures:

1-upper part of the cutter; 2-the lower part of the cutter; 3-a blade; 4-a tool rest; 5-a chute; 6-a guide groove; 7-a fixed tube; 8-limiting convex strips; 9-a cutter pushing mechanism; 10-inclined plane; 11-side groove; 12-a groove; 13-a cover body; 14-a through hole; 15-non-slip texture; 16-ribs;

91-a support; 92-a sleeve; 93-a spring; 94-moving part.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

The utility model provides a but free telescopic cutter, including cutter upper portion 1, cutter lower part 2, be equipped with the knife rest 4 of placing blade 3 in cutter upper portion 1, 1 inner wall in cutter upper portion is provided with vertical ascending spout 5, knife rest 4 with 1 inner wall intermediate layer in cutter upper portion is provided with fixed pipe 7, just fixed pipe 7 lateral wall is equipped with guide way 6 from down, 4 outer walls of knife rest be provided with one pass guide way 6 along 1 inner wall in cutter upper portion the spacing sand grip 8 that slides about 5 spouts, 4 below the knife rest be located 2 sets up cutter ejecting mechanism 9 in the cutter lower part.

Wherein, above-mentioned spacing sand grip 8 can be the cylinder, and the cylinder diameter slightly is less than the width of spout 5, guide way 6, plays the effect that drives knife rest 4 and rise or descend.

The embodiment of the utility model provides an in, rotatory cutter lower part 2 drives fixed pipe 7 rotatory, because the limiting displacement of the vertical spout 5 of 1 inner wall in cutter upper portion, spacing sand grip 8 forces blade 3 to rise along with guide way 6, and blade 3 can not take place rotatoryly at the in-process that rises moreover, and the operator just can realize the flexible of blade 3 through simple rotation.

Optionally, the cutter pushing-out mechanism 9 includes a support 91, a sleeve 92, a spring 93, and a movable member 94, the sleeve 92 is sleeved outside the support 91, one end of the support 91, which is away from the cutter holder 4, abuts against the spring 93, the other end of the spring 93 abuts against the inside of the sleeve 92, and the movable member 94 is fixed on two sides of the sleeve 92.

The number of the movable members 94 is two or more, the movable members 94 are fixed on the outer wall of the sleeve 92 near one end of the tool holder 4, and the spring 93 enables the support member 91 to abut against the tool holder 4.

Optionally, the end of the support 91 facing away from the tool holder 4 is provided with an inwardly sloping surface 10.

Wherein, the inward inclined surface 10 is a smooth inclined surface, the angle between the smooth inclined surface 10 and the inner wall of the sleeve 92 can be 30-60 degrees, and preferably, the angle between the smooth inclined surface 10 and the inner wall of the sleeve 92 is 30 degrees.

Thus, when the sleeve 92 sleeved on the smooth inclined plane 10 is subjected to external extrusion force, the sleeve 92 will sink along the direction of the inclined plane 10, and when the external force is eliminated, the sleeve 92 is restored to its original shape.

Optionally, the sleeve 92 is sleeved with the lower cutter portion 2, and the lower cutter portion 2 is provided with a side groove 11 matched with the movable member 94.

The number of the side grooves 11 is two or more, the number of the side grooves 11 is the same as that of the movable members 94, and the side grooves 11 may be oval, rectangular, square, or the like.

Thus, when the movable member 94 is subjected to an external pressing force, the force is transmitted to the sleeve 92, so that the sleeve 92 is recessed along the slope 10, and when the external force is removed, the sleeve 92 is restored.

Optionally, the lower cutter part 2 is fixedly connected with the fixed pipe 7.

The cutter lower portion 1 and the fixing tube 7 may be integrally formed or may be connected by a screw thread, for example, the cutter lower portion 2 is provided with an internal thread, the fixing tube 7 is provided with an external thread, and the two are fixedly connected together by a screw thread.

In this way, the lower portion 2 of the cutter is fixedly connected to the fixed tube 7, and when the sleeve 92 rotates, the fixed tube 7 is driven to rotate together, so that the blade 3 can move in a telescopic manner along the sliding groove 5.

Optionally, the inner wall of the end of the upper cutter part 1 close to the lower cutter part 2 is uniformly provided with grooves 12 distributed at equal intervals.

Wherein, the size and shape of the grooves 12 are matched with those of the movable piece 94, and a convex rib 16 is arranged between two adjacent grooves 12.

Like this, recess 12 on the inner wall of cutter upper portion 1 cooperatees with moving part 94, when rotating cutter lower part 2, because the extrusion force that receives bead 16, moving part 94 can press sleeve 92, make sleeve 92 along smooth inclined plane 10 direction invagination, continue rotatory cutter lower part 2, moving part 94 butt 12 in the recess this moment, outside extrusion force disappears, sleeve 92 reconversion, when constantly rotatory cutter lower part 2, sleeve 92 can constantly experience the process of invagination and reply, can send the sound of clatter simultaneously, can experience with better use for the customer.

Optionally, a cover 13 is disposed at an end of the cutter upper portion 1 away from the cutter lower portion 2, and a through hole 14 matched with the blade 3 is formed in the center of the cover 13.

The cover 13 may be integrally formed with the tool upper 1, or may be screwed thereto. The through hole 14 may be adjusted according to the shape and size of the insert 3, and the through hole 14 may be a long and narrow rectangle.

Therefore, when the cutter blade fixing device is used, the cutter blade 3 penetrates through the through hole 14 in the center of the cover body 13, the cover body 13 can limit the cutter blade 3, the cutter blade fixing device is more stable to use, and the cutter blade 3 cannot shake.

Optionally, the upper tool part 1 and the lower tool part 2 are snapped together.

The fastening manner may be that the upper tool part 1 is provided with an external thread, the lower tool part 2 is provided with an internal thread, and the upper tool part 1 and the lower tool part 2 are rotatably connected by a thread. Or the cutter upper part 1 is provided with an outer bulge, the cutter lower part 2 is provided with an inner groove, and the cutter upper part 1 and the cutter lower part 2 are connected together in a lap joint mode. The lower part 2 of the cutter can be provided with a first magnet, the end surface of the upper part 1 of the cutter, which is close to the lower part 2 of the cutter, is provided with a second magnet, and the upper part 1 of the cutter and the lower part 2 of the cutter are connected in a magnet attraction manner.

Therefore, the upper part 1 and the lower part 2 of the cutter are tightly buckled together and are not easy to fall off.

Optionally, the outer side wall of the upper tool part 1 and the outer side wall of the lower tool part 2 are both provided with anti-slip textures 15.

The anti-slip texture 15 may be spiral, spirally rising, or spirally falling. Or rubber antiskid lugs which can be arranged in a certain shape, a spiral arrangement or a ring arrangement, or other arrangement modes for increasing the friction force.

Therefore, the anti-skid textures 15 on the outer side walls of the upper part 1 and the lower part 2 of the cutter not only provide better touch feeling for users, but also are safer to use, and accidents that people are injured by the falling of the cutter are not easy to happen.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the solution described above with a specific combination of features.

Claims

1. A cutter that can freely stretch out and draw back which characterized in that: including cutter upper portion (1), cutter lower part (2), be equipped with knife rest (4) of placing blade (3) in cutter upper portion (1), cutter upper portion (1) inner wall is provided with vertical ascending spout (5), knife rest (4) with cutter upper portion (1) inner wall intermediate layer is provided with fixed pipe (7), just fixed pipe (7) lateral wall is equipped with guide way (6) from down, knife rest (4) outer wall is provided with one and passes guide way (6) along cutter upper portion (1) inner wall spout (5) spacing sand grip (8) of slideing from top to bottom, knife rest (4) lower position in set up cutter ejecting mechanism (9) in cutter lower part (2).

2. A freely telescopic tool as claimed in claim 1, characterized in that: cutter ejecting mechanism (9) are including support piece (91), sleeve (92), spring (93), moving part (94), support piece (91) overcoat is equipped with sleeve (92), support piece (91) deviate from the one end butt of knife rest (4) has spring (93), spring (93) other end butt is in sleeve (92), moving part (94) are fixed sleeve (92) both sides.

3. A freely telescopic tool as claimed in claim 2, characterized in that: one end, deviating from the tool rest (4), of the supporting piece (91) is provided with an inward inclined surface (10).

4. A freely telescopic tool as claimed in claim 3, characterized in that: the cutter lower part (2) is sleeved outside the sleeve (92), and a side groove (11) matched with the moving part (94) is formed in the cutter lower part (2).

5. A freely telescopic tool as claimed in any one of claims 1 to 4, characterized in that: the lower part (2) of the cutter is fixedly connected with the fixed pipe (7).

6. A freely telescopic tool as claimed in claim 4, characterized in that: the inner wall of one end of the upper cutter part (1) close to the lower cutter part (2) is uniformly provided with grooves (12) distributed at equal intervals.

7. A freely telescopic tool as claimed in claim 6, characterized in that: one end of the upper cutter portion (1) departing from the lower cutter portion (2) is provided with a cover body (13), and the center of the cover body (13) is provided with a through hole (14) matched with the blade (3).

8. A freely telescopic tool as claimed in claim 7, characterized in that: the upper cutter part (1) and the lower cutter part (2) are buckled together.

9. A freely telescopic tool as claimed in claim 8, characterized in that: the outer side wall of the upper part (1) of the cutter and the outer side wall of the lower part (2) of the cutter are both provided with anti-skid grains (15).