CN111037611B - Assembled art designer's sword - Google Patents

Abstract

The invention discloses an assembled utility knife, comprising a knife handle, a sliding component and a blade; the knife handle includes a first splicing piece and a second splicing piece which are identical in structure and symmetrically arranged with each other, and the two can be formed by detachable connection with each other. A splicing body; the first splicing piece and the second splicing piece are provided with sliding paths corresponding to each other and transparent in the transverse direction, and one side of the sliding path is arranged with positioning grooves; A sliding sheet inside the body and a positioning member whose one end is connected to the sliding sheet and the other end can be matched with the positioning groove; one end of the blade is detachably fixed on the sliding sheet, and the other end can extend out of the first end cover . The invention can solve the problem of labor and inconvenience when the blade is pushed out or retracted, and can not only ensure the stable operation of the blade and keep it from moving, but also ensure the smoothness of manual push and pull, and the operation is effortless.

Description

An assembled utility knife

technical field

The invention relates to the technical field of cutting tools, in particular to an assembled utility knife.

Background technique

A utility knife, also commonly known as a carving knife or a wallpaper knife, is a kind of knife used for art and handicrafts. It is mainly used to cut things with a soft texture. Most of them are composed of a plastic handle and a blade. There are also a few metal hilts, and most of the blades are oblique, which can be broken with a blunt scribe line, and a new blade appears, which is convenient to use. Most of the existing utility knives have a pull-out structure, and the blades need to be retracted and stored after use. However, when the existing utility knives use the blades to cut items, there are problems that the blades are easy to move and the stability is not high, and the blades can be pushed out or removed. When retracting, the thumb needs to be pushed and pulled with greater force, and the operation is more laborious.

SUMMARY OF THE INVENTION

The purpose of this section is to outline some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of the application to avoid obscuring the purpose of this section, abstract and title, and such simplifications or omissions may not be used to limit the scope of the invention.

The present invention is proposed in view of the problems existing in the existing utility knives.

Therefore, the object of the present invention is to provide an assembled utility knife, which can solve the problem of labor and inconvenience when the blade is pushed out or retracted.

In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions: an assembled utility knife, which includes: a knife handle, which includes a first splicing piece and a second splicing piece that are identical in structure and symmetrically arranged with each other, and the two can pass through each other. A splicing body is formed by detachable connection, and a first end cap and a second end cap are respectively detachably connected at the head and tail ends of the splicing body; and horizontally transparent sliding path, one side of the sliding path is arranged with positioning grooves; the sliding component includes a sliding sheet arranged inside the splicing body and capable of sliding in the longitudinal direction, and one end is rotatably connected to the sliding sheet and the other end can be rotated and matched with the positioning member of the positioning groove; and the blade, one end of which can be detachably fixed on the sliding sheet, and the other end can extend out of the first end cover, the first end cover There is a knife opening that allows the blade to pass through.

As a preferred solution of the assembled utility knife of the present invention, wherein: the first splicing piece includes a first strip and a first plug-in outer edge symmetrically arranged on both sides of the first strip in the longitudinal direction ; the second splicing piece includes a second strip and a second plug-in outer edge symmetrically arranged on both sides of the second strip along the longitudinal direction; a first plug-in outer edge is provided on the edge of the first plug-in outer edge A hook body and a first slot located inside the first hook body; a center-symmetric second hook body and a second hook body located inside the second hook body are arranged on the edge of the second plug-in outer edge a slot; the first hook body can be inserted into the second slot, and the second hook body can be inserted into the first slot.

As a preferred solution of the assembled utility knife of the present invention, wherein: the inner hook surfaces of the first hook body and the second hook body form an inclined slope, so that the notches of the first slot and the second slot are The width is smaller than the groove bottom width.

As a preferred solution of the assembled utility knife of the present invention, wherein: a side of the splicing body corresponding to the positioning groove is fixed with a bar-shaped magnetic member; the positioning member includes a first rotatable connection with the sliding sheet a connector, a second connector capable of rotating around the rotation center of the first connector inside the splicing body, and a detachable fixed on the second connector and capable of interacting with the bar-shaped magnetic element A magnetically attracted locking block, the cross section of the locking block is matched with the bottom contour of the positioning groove.

As a preferred solution of the assembled utility knife of the present invention, wherein: one side of the positioning groove corresponding to the direction of the tail end of the splicing body is a first surface, and the first surface is perpendicular to the sliding path. Longitudinal; one side of the positioning groove corresponding to the direction of the head end of the splicing body is a second surface, and the second surface is a convex arc-shaped curved surface.

As a preferred solution of the assembled utility knife of the present invention, wherein: the sliding assembly further includes an elastic sheet whose one end is fixed on the sliding sheet, and the other end of the elastic sheet has a hook; the first connection The head is provided with a slot corresponding to the hook, when the second connector is rotated out of the positioning slot and the locking block is higher than the top of the first surface, the hook can It is embedded and fixed in the card slot.

As a preferred solution of the assembled utility knife of the present invention, wherein: the sliding path includes a positioning section corresponding to the positioning groove, and a locking start section located at one end of the positioning section and corresponding to the tail end of the splicing body , and a locking release section located at the other end of the positioning section and corresponding to the head end of the splicing body; the width of the locking activation section is smaller than that of the positioning section, and a first locking section is provided on the side away from the positioning groove on the locking activation section. a pressing slope; the width of the unlocking section is smaller than that of the positioning section, and a second pressing slope is provided on the side of the unlocking section close to the positioning groove, and the unlocking section corresponds to the splicing One end in the direction of the head end of the body is also provided with sliding slits that communicate with each other.

As a preferred solution of the assembled utility knife of the present invention, wherein: the sliding assembly further includes a driving member; the driving member includes a column fixed on the sliding sheet and extending out of the sliding path, and a column fixed on the sliding plate and extending out of the sliding path. The push block on the outer end of the column; the width of the column is not greater than the width of the sliding slit, and the width of the sliding slit is smaller than the cross-sectional dimension of the locking block.

As a preferred solution of the assembled utility knife of the present invention, wherein: the first strip and the second strip are provided with sliding paths facing each other; the sliding sheet and the drive fixed thereon The parts together form a sliding module, and the sliding module is equipped with two types of symmetrically arranged structures.

As a preferred solution of the assembled utility knife of the present invention, guide strips are symmetrically arranged on both sides of the sliding sheet, and the width of the guide strips corresponds to the first splicing piece and the second splicing piece of the splicing body. The distance between the inner side walls of the two splices.

As a preferred solution of the assembled utility knife of the present invention, wherein: the assembled utility knife further includes a telescopic fixing assembly, and the blade is connected to the sliding sheet through the telescopic fixing assembly; the telescopic fixing assembly It includes a knife clamp, four sets of connecting rods connected to the periphery of the knife clamp, and a damping block respectively fixed on the end of each connecting rod; the guide strip is provided with a window corresponding to the damping block, and the The damping block can protrude out of the window under the extrusion of the corresponding connecting rod; the sliding sheet is provided with a micro-movement groove corresponding to the knife-clamping member, and the knife-clamping member passes through the micro-movement groove; the The blade is detachably connected with the blade clamping member.

As a preferred solution of the assembled utility knife of the present invention, wherein: the tool clamping member includes a sliding ring passing through the micro-movement groove and an extrusion bolt that can be threadedly connected to the inner side wall of the sliding ring ; A limiting seat is provided on the sliding ring, which is located on one side of the sliding sheet, and the bolt head of the extrusion bolt is located on the other side of the sliding sheet; the blade is provided with a connecting hole, so The connecting hole is sleeved on the periphery of the sliding ring, and is sandwiched between the bolt head and the sliding sheet.

As a preferred solution of the assembled utility knife of the present invention, wherein: the sliding ring is provided with a first connecting seat, a second connecting seat, a third connecting seat and a fourth connecting seat corresponding to each connecting rod respectively , each link is hinged with the sliding ring through the corresponding connecting seat; the first connecting seat and the second connecting seat are located on the same side of a pair of tension members, and the third connecting seat and the fourth connecting seat are located on a on the other side of the stretch piece.

As a preferred solution of the assembled utility knife of the present invention, wherein: the telescopic fixing assembly further includes a pair of tension members arranged symmetrically, and one end of the two tension members is fixed to the sliding ring and the other ends are respectively fixed on the guide strips on both sides of the sliding sheet.

Beneficial effects of the present invention: the present invention can solve the laborious and inconvenient problem when the blade is pushed out or retracted, it can not only ensure the stable operation of the blade so that it does not move, but also can ensure the smoothness of manual pushing and pulling, and the operation is not easy. laborious.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort. in:

Figure 1 is an overall structural diagram of an assembled utility knife.

FIG. 2 is a cross-sectional structural diagram of the first splicing piece and the second splicing piece.

FIG. 3 is a cross-sectional view of the assembled utility knife and a detailed view of its partial structure.

Figure 4 is an exploded view of the assembled utility knife and a detailed view of its partial structure.

Fig. 5 is an exploded view of the sliding assembly and the telescopic fixing assembly and its partial structural details.

FIG. 6 is a structural diagram of a sliding module.

FIG. 7 is a front view of the sliding assembly and the telescopic fixing assembly.

Figure 8 is a front view of the first splicing piece or the second splicing piece.

FIG. 9 is a schematic diagram of the sliding process of the locking block in the sliding path.

Detailed ways

In order to make the above objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Many specific details are set forth in the following description to facilitate a full understanding of the present invention, but the present invention can also be implemented in other ways different from those described herein, and those skilled in the art can do so without departing from the connotation of the present invention. Similar promotion, therefore, the present invention is not limited by the specific embodiments disclosed below.

Second, reference herein to "one embodiment" or "an embodiment" refers to a particular feature, structure, or characteristic that may be included in at least one implementation of the present invention. The appearances of "in one embodiment" in various places in this specification are not all referring to the same embodiment, nor are they separate or selectively mutually exclusive from other embodiments.

1 to 9, it is an embodiment of the present invention, which provides an assembled utility knife, which includes a knife handle 100, a sliding assembly 200 capable of sliding longitudinally in the knife handle 100, and a sliding assembly connected to the knife handle 100. The blade 300 on the 200 and can be retracted inside and outside with it.

The knife handle 100 is an integral detachable structure, which facilitates disassembly and assembly and replacement or repair of internal parts. Specifically, the knife handle 100 includes a first splicing piece 101 and a second splicing piece 102 that have the same structure and are symmetrically arranged with each other, both of which are groove-shaped in cross-section. The detachable connection of the splicing body T forms a hand-held splicing body T, and the first end cap 103 and the second end cap 104 are respectively detachably connected to the first and last ends of the splicing body T. In the present invention, the head end of the splicing body T is one end corresponding to the outlet of the blade 300 , and the tail end of the splicing body T is the opposite end. The first end cap 103 and the second end cap 104 can be respectively fixed on the head and tail ends of the splicing body T by means of snap connection. The first splicing piece 101 and the second splicing piece 102 are provided with sliding paths 105 corresponding to each other and transparent in the transverse direction. Several positioning grooves 106 of the same specification are arranged on one side of the sliding path 105 equidistantly.

The sliding assembly 200 includes a sliding sheet 201 that is arranged inside the splicing body T and can relatively slide along the longitudinal direction of the splicing body T. The sliding assembly 200 also includes one end that is rotatably connected to the sliding sheet 201 and the other end that can rotate with any positioning groove 106. A mating locator 202 is formed.

The blade 300 of the present invention can use the existing utility knife blade, one end of which is detachably fixed on the sliding plate 201, and the other end can extend out of the first end cover 103, and the first end cover 103 is provided with a blade 300 that allows the blade 300 to pass through. The passing knife edge 103a. Preliminary positioning of the position of the blade 300 can be achieved after the positioning member 202 is embedded in a positioning groove 106 according to actual requirements.

The present invention can set: the direction of the side of the sliding path 105 close to the positioning groove 106 is the same as the direction of the blade, and the direction of the side of the sliding path 105 away from the positioning groove 106 is the same as the direction of the back of the blade.

Further, the first splicing piece 101 includes a first strip, and a pair of first inserting outer edges 101a extending along the longitudinal direction and symmetrically arranged on both sides of the first strip, so that the first splicing piece 101 integrally forms a groove shape. Likewise, the second splicing piece 102 includes a second strip, and second plug outer edges 102a extending along the longitudinal direction and symmetrically disposed on both sides of the second strip.

A first hook body 101a-1 extending longitudinally and a first slot 101a-2 located inside the first hook body 101a-1 are disposed on the edge of the first plug outer edge 101a. Similarly, a corresponding second hook body 102a-1 and a second slot 102a-2 located inside the second hook body 102a-1 are provided on the edge of the second plug outer edge 102a; the first hook body 101a-1 And the first slot 101a-2 forms center symmetry with the second hook body 102a-1 and the second slot 102a-2 respectively. In the present invention, the first hook body 101a-1 can just be inserted into the second slot 102a-2, and the second hook body 102a-1 can just be inserted into the first slot 101a-2, so that the first splicing can be realized The plug connection (detachable connection) between the component 101 and the second splicing component 102 .

Preferably, the inner hook surface G of the first hook body 101a-1 and the second hook body 102a-1 forms an inclined slope, so that the slot width of the first slot 101a-2 and the second slot 102a-2 is smaller than Groove bottom width. Therefore, when the first hook body 101a-1 is inserted into the second slot 102a-2, due to the slope of the inner hook surface G, the first hook body 101a-1 cannot be laterally separated from the second slot 102a- 2; Similarly, when the second hook body 102a-1 is inserted into the first slot 101a-2, it cannot be detached from the first slot 101a-2 from the lateral direction.

Further, a longitudinally extending bar-shaped magnetic member (not shown in the drawings) is fixed on the inner side wall of the splicing body T corresponding to one side of the positioning groove 106 . The bar magnet can be a long bar magnet. In addition, the positioning member 202 includes a first connecting head 202a rotatably connected with the sliding sheet 201, a second connecting head 202b capable of forward and reverse rotation around the rotation center of the first connecting head 202a inside the splicing body T, and a detachable fixed The locking block 202c is on the second connector 202b and can be magnetically attracted with the bar-shaped magnetic element. The locking block 202c is preferably a hollow iron column, the cross section of which is matched with the bottom contour of the positioning groove 106 . Therefore, under the magnetic attraction of the bar-shaped magnetic member, the locking block 202c can be attracted and embedded into any positioning groove 106 to form a preliminary positioning. Preferably, the bottom contour of the positioning groove 106 is an arc shape matching with the locking block 202c. The locking block 202c and the second connecting head 202b of the present invention can be detached using a thread (the second connecting head 202b has a transverse screw hole, and the outer side wall of the locking block 202c has a corresponding external thread) or direct insertion and fixing (No. The second connector 202b has a horizontal insertion hole, and the locking block 202c is directly inserted into the insertion hole, and the stability is maintained only by friction).

Further, one side of the positioning groove 106 corresponding to the direction of the rear end of the splicing body T is a first surface 106 a, and the first surface 106 a is perpendicular to the longitudinal direction of the sliding path 105 . One side of the positioning groove 106 corresponding to the direction of the head end of the splicing body T is a second surface 106b, and the second surface 106b is a convex arc-shaped curved surface. Preferably, the joint between the bottom of the positioning groove 106 and the second surface 106b can be smoothly tangent to ensure smooth sliding of the locking block 202c in the sliding path 105 .

Further, the sliding assembly 200 further includes an elastic sheet 203 whose one end is fixed on the sliding sheet 201, and the other end of the elastic sheet 203 has a hook 203a. The elastic sheet 203 has elastic deformation, and is preferably a steel sheet with toughness. The first connector 202a is provided with a slot 202a-1 corresponding to the hook 203a. When the second connector 202b is rotated out of the positioning slot 106 and the locking block 202c is raised above the top of the first surface 106a, the hook 203a It can be embedded and fixed in the card slot 202a-1.

The sliding path 105 includes a positioning segment 105a corresponding to the positioning groove 106, a locking activation segment 105b located at one end of the positioning segment 105a and corresponding to the tail end of the splicing body T, and a locking releasing segment located at the other end of the positioning segment 105a and corresponding to the head end of the splicing body T 105c, the three are interconnected. The width of the locking activation section 105b is smaller than that of the positioning section 105a, and a first pressing slope 105b-1 is provided on the side of the locking activation section 105b away from the positioning groove 106 (the direction of the blade back); the width of the unlocking section 105c is less than The positioning section 105a is provided with a second pressing slope 105c-1 on the side (in the direction of the cutting edge) of the unlocking section 105c close to the positioning groove 106. One end of the unlocking section 105c corresponding to the direction of the head end of the splicing body T is also provided with a sliding slot 105d communicating with each other. The sliding slot 105d extends longitudinally and has a width smaller than the unlocking section 105c.

According to the present invention, when the locking block 202c slides to the unlocking section 105c, the hook 203a on the elastic sheet 203 can be inserted into the slot 202a-1, so that the locking block 202c is higher than each positioning groove 106, and the sliding assembly 200 is integral Unhindered sliding within the sliding path 105 is possible.

In the process of using the assembled utility knife, the initial state is set as the storage state of the blade 300 .

As shown in FIG. 9 , in the initial state, the locking block 202c is located in the area of the locking initiation section 105b.

When the assembled utility knife needs to be used, the blade 300 is pushed out, and the positioning member 202 is moved to the area of the positioning section 105a at the same time; due to the magnetic attraction of the bar-shaped magnetic member, the locking block 202c can be attracted and inserted into the nearest positioning groove 106, forming a Initial positioning.

When the blade 300 continues to be slid outward, the locking block 202c can touch the second pressing slope 105c-1, and due to being lifted by the slope, the locking block 202c can be lifted to a higher height until the The hook 203a is embedded in the slot 202a-1; at this time, the locking block 202c can be higher than each positioning groove 106 and maintain a stable state. Even if the sliding assembly 200 moves in the opposite direction to the area of the positioning section 105a, the locking block 202c will also be bent due to bending The locking of the hook 203a cannot be reversed and inserted into the positioning groove 106. Therefore, in this state, the sliding assembly 200 and the blade 300 can slide arbitrarily within the region of the positioning section 105a and the unlocking section 105c.

When the blade 300 is moved back and reversed, the sliding assembly 200 and the blade 300 can slide through the middle positioning section 105a without hindrance until the locking block 202c touches the first pressing slope 105b-1; The first pressing slope 105b-1 that sinks can gradually squeeze the locking block 202c, and the elastic sheet 203 causes the hook 203a to escape from the slot 202a-1 due to its own elastic deformation, and finally the locking block 202c is released from the locking , and slide into the area of the locking start section 105b to return to the initial state.

Further, the elastic sheet 203 of the present invention is further preferably structured as follows:

The elastic sheet 203 includes a straight plate area 203b, a limit fixing plate 203c symmetrically arranged on both sides of the center of the straight plate area 203b, and a hook 203a and a substitute hook 203d respectively fixed at both ends of the straight plate area 203b. The hook 203a and the substitute hook 203d forms centrosymmetric with respect to the center of the straight plate area 203b. The limit fixing plate 203c divides the straight plate area 203b into two insertion parts. At the same time, the sliding sheet 201 is also provided with an insertion position 201c for fixing the elastic sheet 203. The insertion position 201c is provided with a longitudinally extending slot 201c-1 with two transparent ends. The width of the slot 201c-1 is matched to The thickness of the candy bar region 203b. Therefore, the two plug-in parts of the straight plate area 203b can be inserted into the slot 201c-1 to achieve detachable fixation. When the hook 203a is irreversibly deformed or damaged due to long-term use, the elastic sheet 203 can be reversely fixed so that the replacement hook 203d faces outward. Preferably, the overall outline of the outer edge of the plug-in position 201c is circular, and the outer diameter thereof corresponds to the length of the plug-in portion, which is beneficial to the fitting limit and structural stability of the elastic sheet 203 .

Further, in order to control the longitudinal sliding of the sliding assembly 200 and the blade 300 , the sliding assembly 200 further includes a driving member 204 . The driving member 204 includes a column 204a fixed on the sliding sheet 201 and extending out of the sliding path 105 and a push block 204b fixed on the outer end of the column 204a; it should be noted that the width of the column 204a is not greater than the width of the sliding slot 105d , the width of the sliding slit 105d is smaller than the cross-sectional dimension of the locking block 202c, so that when the locking block 202c slides to the unlocking section 105c, it cannot slide into the sliding slit 105d, while the upright post 204a can slide into the sliding slit 105d .

Further, the first strip and the second strip are provided with sliding paths 105 facing each other. The present invention sets: the sliding sheet 201 and the driving member 204 fixed on it together form a sliding module. The sliding module of the present invention is equipped with two kinds of symmetrically arranged structures, which can be assembled differently according to the usage habits of the user's left and right hands The sliding module, so that the push block 204b can be installed on either side of the splicing body T according to the requirements, which is flexible and changeable.

Further, the thickness of the second connector 202b matches the inner spacing of the two side walls of the splicing body T; the lateral length of the locking block 202c is greater than the inner spacing of the two side walls of the splicing body T. Therefore, it is ensured that the second connecting head 202b can rotate freely inside the splicing body T, while the locking block 202c can only move within the sliding path 105 .

Further, two sides of the sliding sheet 201 are symmetrically provided with guide strips 201a, and the width of the guide strips 201a corresponds to the inner spacing of the two side walls of the splicing body T (that is, the spacing between the inner side walls of the first splicing piece 101 and the second splicing piece 102). ), so as to facilitate the longitudinal sliding of the sliding sheet 201 inside the spliced body T, and can improve the stability of the sliding sheet 201 when sliding.

Further, the assembled utility knife of the present invention further includes a telescopic fixing assembly 400 , and the blade 300 is connected to the sliding plate 201 through the telescopic fixing assembly 400 . The setting of the telescopic fixing assembly 400 enables the blade 300 to maintain a stable state during use without internal or external movement.

Specifically, the telescopic fixing assembly 400 includes a knife clamping member 401 for fixing the blade 300 , four sets of connecting rods 402 connected to the periphery of the knife clamping member 401 , and damping blocks 403 respectively fixed on the ends of each connecting rod 402 . The guide bar 201a is provided with a window 201a-1 corresponding to the damping block 403, and the damping block 403 can extend out of the window 201a-1 under the extrusion of the corresponding connecting rod 402, and press the inner side wall of the splicing body T (ie, the first insert). The inner side wall after the connecting outer edge 101a and the second inserting outer edge 102a are butted). Preferably, the four sets of connecting rods 402 are symmetrically distributed, and the four damping blocks 403 are distributed in four corners of a rectangle.

In addition, the sliding plate 201 is provided with a micro-movement groove 201b corresponding to the knife-clamping member 401, and the knife-clamping member 401 passes through the micro-moving groove 201b; the blade 300 is detachably connected with the knife-clamping member 401. The micro-movement groove 201b is a longitudinal groove with a short length, and the tool clamping member 401 can slide longitudinally to a certain extent in the groove.

During the use of the assembled utility knife, if the blade 300 reciprocates to cut the article, the blade 300 itself also has a tendency to retract and slide inside and outside.

When the blade 300 has a tendency to protrude outward, the two connecting rods 402 corresponding to the outer side can be pushed outward by the blade clamping member 401, so that it has a tendency to expand to both sides, and this tendency can push the corresponding damping block 403 The respective windows 201a-1 are partially protruded, and the inner side walls of the spliced body T are pressed together to form a frictional force obstruction; and the greater the tendency of the blade 300 to slide, the greater the frictional force. Preferably, the outer surface of the damping block 403 is coated with a resistance-increasing layer for increasing the frictional force, and the resistance-increasing layer may be a rubber layer.

When the blade 300 has a tendency to retract inward, the two connecting rods 402 corresponding to the inner side can be pushed inward by the blade clamping member 401, so that it also has a tendency to expand to both sides, which can push the corresponding damping block 403 partially protrudes out of the respective windows 201a-1, and co-extrudes the inner sidewall of the spliced body T to form a frictional force obstruction; and the greater the tendency of the blade 300 to slide, the greater the frictional force.

It should be noted that only when the external force directly acts on the blade 300 and makes the blade 300 have a tendency to expand and contract inside and outside, the telescopic fixing assembly 400 can be urged to work and form a squeezing friction. However, if the inner and outer expansion and contraction of the blade 300 is controlled only by pushing the above-mentioned pushing block 204b, since there is no tendency to push and pull the blade clamping member 401, the expansion and contraction fixing assembly 400 will not be prompted to work. Therefore, the above-mentioned working principle can ensure that when the blade 300 is used to cut the article, the retractable fixing assembly 400 can ensure its stable operation and no movement; and when the blade needs to be manually controlled to extend and retract, the locking block 202c and the sliding path 105 The matching stroke can ensure the smoothness of manual push and pull, and the operation is effortless.

Further, the tool clamping member 401 includes a sliding ring 401a passing through the micro-movement groove 201b and a pressing bolt 401b capable of being threadedly connected with the inner side wall of the sliding ring 401a. The sliding ring 401a may be an annular structure, and its inner side wall has an inner thread, and the extrusion bolt 401b is connected with the inner thread of its inner side wall to realize a detachable connection. A limiting seat is provided on the sliding ring 401a, which is located on one side of the sliding sheet 201, and the bolt head 401b-1 of the extrusion bolt 401b is located on the other side of the sliding sheet 201, so the sliding sheet 201 is located on the limiting seat and the bolt head. 401b-1. The blade 300 is provided with a connecting hole 301 , the connecting hole 301 is sleeved on the periphery of the sliding ring 401a and is sandwiched between the bolt head 401b-1 and the sliding sheet 201 to realize the clamping and limiting of the blade 300 . The limiting seat of the present invention may be an outwardly convex block-like structure, which can be placed on one side of the micro-movement groove 201b.

Preferably, the sliding ring 401a is provided with a first connecting seat 401a-1, a second connecting seat 401a-2, a third connecting seat 401a-3 and a fourth connecting seat 401a-4 corresponding to each connecting rod 402, respectively. One end of each connecting rod 402 is hinged with the sliding ring 401a through the corresponding connecting seat (four connecting seats such as the first connecting seat 401a-1 to the fourth connecting seat 401a-4 in the above), and the other end is connected with the corresponding damping block 403 Hinged. The first connection seat 401a-1 and the second connection seat 401a-2 are located on the same side of the pair of tension members 404, and the third connection seat 401a-3 and the fourth connection seat 401a-4 are located on the other side of the pair of tension members 404. side. It should be noted that when the sliding ring 401a of the present invention is provided with a connecting seat, it has the function of a "limiting seat" and can be directly used as the above-mentioned limiting seat.

Further, the telescopic fixing assembly 400 further includes a pair of tension members 404 arranged symmetrically, one end of the two tension members 404 is fixed on the sliding ring 401a, and the other end is respectively fixed on the guide bars 201a on both sides of the sliding sheet 201 superior. Preferably, the two tension members 404 are collinear in a natural state, and the tension member 404 is preferably a tension spring, which can ensure that the knife-clamping member 401 after a slight movement can return to its natural state under the action of the tension member 404. , to improve stability.

It is important to note that the construction and arrangement of the present application shown in the various exemplary embodiments are merely exemplary. Although only a few embodiments have been described in detail in this disclosure, those who refer to this disclosure will readily appreciate that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application are possible (eg, changes in size, dimensions, structure, shape, and proportions of various elements, as well as parameter values (eg, temperature, pressure, etc.), mounting arrangement, use of materials, color, orientation, etc.). For example, elements shown as integrally formed may be constructed of multiple parts or elements, the positions of elements may be inverted or otherwise varied, and the nature or number or positions of discrete elements may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any "mean-plus-function" clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operation and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications still falling within the scope of the appended claims.

Furthermore, in order to provide a concise description of example embodiments, all features of an actual implementation (ie, those that are not relevant to the best mode currently considered for carrying out the invention, or those that are not relevant for carrying out the invention, may not be described in order to provide a concise description of example embodiments) feature).

It should be appreciated that during the development of any actual implementation, such as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but would be a routine undertaking of design, fabrication, and production without undue experimentation for those of ordinary skill having the benefit of this disclosure .

It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be Modifications or equivalent substitutions without departing from the spirit and scope of the technical solutions of the present invention should be included in the scope of the claims of the present invention.

Claims (10)

1. The utility model provides an assembled art designer sword which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the cutter handle (100) comprises a first splicing piece (101) and a second splicing piece (102) which are identical in structure and are symmetrically arranged, the first splicing piece and the second splicing piece can be detachably connected with each other to form a splicing body (T), and a first end cover (103) and a second end cover (104) are respectively detachably connected with the head end and the tail end of the splicing body (T); sliding paths (105) which correspond to each other and are transversely through are arranged on the first splicing piece (101) and the second splicing piece (102), and positioning grooves (106) are arranged on one sides of the sliding paths (105);

the sliding assembly (200) comprises a sliding sheet (201) which is arranged inside the splicing body (T) and can slide along the longitudinal direction, and a positioning piece (202) of which one end is rotatably connected to the sliding sheet (201) and the other end can be matched with the positioning groove (106) through rotation; and the number of the first and second groups,

one end of the blade (300) is detachably fixed on the sliding sheet (201), the other end of the blade can extend out of the first end cover (103), and an outlet knife edge (103a) allowing the blade (300) to pass through is arranged on the first end cover (103).

2. The utility knife of claim 1, wherein: the first splicing piece (101) comprises a first strip plate and first splicing outer edges (101a) which are longitudinally and symmetrically arranged on the edges of two sides of the first strip plate; the second splicing piece (102) comprises a second strip plate and second splicing outer edges (102a) which are symmetrically arranged on two side edges of the second strip plate along the longitudinal direction;

the edge of the first inserting outer edge (101a) is provided with a first hook body (101a-1) and a first inserting groove (101a-2) positioned on the inner side of the first hook body (101 a-1); the edge of the second inserting outer edge (102a) is provided with a second hook body (102a-1) which is centrosymmetric and a second inserting groove (102a-2) which is positioned at the inner side of the second hook body (102 a-1); the first hook body (101a-1) can be inserted into the second insertion groove (102a-2), and the second hook body (102a-1) can be inserted into the first insertion groove (101 a-2).

3. The utility knife of claim 2, wherein: the inner hook surfaces (G) of the first hook body (101a-1) and the second hook body (102a-1) form inclined slopes, so that the notch widths of the first insertion groove (101a-2) and the second insertion groove (102a-2) are smaller than the groove bottom width.

4. The assembly type utility knife according to claim 2 or 3, characterized in that: a strip-shaped magnetic piece is fixed on one side, corresponding to the positioning groove (106), in the splicing body (T);

the locating piece (202) include with first connector (202a) of slide (201) swivelling joint, can be inside around at splice body (T) second connector (202b) that the rotation center of first connector (202a) rotated to and detachably be fixed in on second connector (202b) and can with bar magnetic member takes place magnetic attraction's locking piece (202c), the cross section cooperation of locking piece (202c) the bottom profile of constant head tank (106).

5. The utility knife of claim 4, wherein: one side of the positioning groove (106) corresponding to the tail end direction of the splicing body (T) is a first surface (106a), and the first surface (106a) is perpendicular to the longitudinal direction of the sliding path (105);

one side of the positioning groove (106) corresponding to the head end direction of the splicing body (T) is a second surface (106b), and the second surface (106b) is an outward convex arc-shaped curved surface.

6. The utility knife of claim 5, wherein: the sliding assembly (200) further comprises an elastic sheet (203) with one end fixed on the sliding sheet (201), and the other end of the elastic sheet (203) is provided with a hook (203 a);

a clamping groove (202a-1) corresponding to the hook (203a) is formed in the first connecting head (202a), and when the second connecting head (202b) is separated from the positioning groove (106) through rotation and the locking block (202c) is higher than the top of the first surface (106a), the hook (203a) can be embedded and fixed in the clamping groove (202 a-1).

7. The assembly type utility knife according to claim 5 or 6, characterized in that: the sliding path (105) comprises a positioning section (105a) corresponding to the positioning groove (106), a locking starting section (105b) located at one end of the positioning section (105a) and corresponding to the tail end of the splicing body (T), and a locking releasing section (105c) located at the other end of the positioning section (105a) and corresponding to the head end of the splicing body (T);

the width of the locking starting section (105b) is smaller than that of the positioning section (105a), and a first extrusion slope surface (105b-1) is arranged on one side, far away from the positioning groove (106), of the locking starting section (105 b);

the width of the unlocking section (105c) is smaller than that of the positioning section (105a), a second extrusion slope surface (105c-1) is arranged on one side, close to the positioning groove (106), of the unlocking section (105c), and a sliding seam (105d) which is communicated with each other is further arranged at one end, corresponding to the head end direction of the splicing body (T), of the unlocking section (105 c).

8. The utility knife of claim 7, wherein: the sliding assembly (200) further comprises a drive (204);

the driving piece (204) comprises a vertical column (204a) fixed on the sliding sheet (201) and extending out of the sliding path (105), and a pushing block (204b) fixed on the outer end of the vertical column (204 a);

the width of the upright (204a) is not larger than the width of the sliding slot (105d), and the width of the sliding slot (105d) is smaller than the cross-sectional dimension of the locking block (202 c).

9. The utility knife of claim 8, wherein: sliding paths (105) which are opposite to each other are arranged on the first strip plate and the second strip plate;

the slider (201) and the drive element (204) fixed thereto together form a sliding module which is provided with two types of structures arranged symmetrically to each other.

10. The utility knife of any one of claims 1-3, 5, 6, and 9, wherein: the two sides of the sliding sheet (201) are symmetrically provided with guide strips (201a), and the width of each guide strip (201a) corresponds to the distance between the inner side walls of the first splicing piece (101) and the second splicing piece (102) of the splicing body (T).

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