CN208557601U - A kind of cutter head structure of portable trimmer knife - Google Patents

Abstract

The utility model discloses a kind of cutter head structures of portable trimmer knife, including substrate and cover board, blade putting groove is equipped on the inside of substrate, sliding groove and spring groove, sliding groove is connected to blade putting groove, and the submergence depth of the sliding groove is greater than the submergence depth of insert groove, putting in sliding groove has lock pin, cover board is equipped with the strip through-hole for holding latch pin ends and passing through in the position of corresponding lock pin, and the lock pin is located at the pin body diameter in strip through-hole and is less than the pin body diameter being located on the inside of cover board, the push button being connected and fixed with latch pin ends is provided on the outside of cover board, promising lock pin is put in spring groove provides the spring of elastic force close to blade putting groove.The utility model has the advantage of, structure is simple, it is easy to assembly, the end of lock pin is connect after passing through cover board with push button, in assembly or disassembly cover board, the loss of the relatively small lock pin of volume can be avoided, compress the setting of elastic slice, even if blade will not be detached from head body because of gravity in the case where lock pin does not lock blade.

Description

A kind of cutter head structure of portable trimmer knife

Technical field

The utility model belongs to paper knife technical field, more specifically more particularly to one kind of fast changeable blade The cutter head structure of portable trimmer knife.

Background technique

Paper knife is more commonly used cutting tool, is generally used for the cutting of paper, cloth, plastic material.

Currently, the cutter head structure of existing paper knife is generally provided with locking mechanism, but existing locking mechanism structure There is also many disadvantages, for example structure is complicated, assembly is difficult, operation not enough facilitates, such as existing locking plate using lever construction Come realize blade locking paper knife, the middle part of locking plate is rotatablely connected by front position by pin and knife handle ontology, Mode of operation is the unlock for lifting the front end of locking plate by the rear end of pressing lock stator to realize blade, this kind of lever knot The shortcomings that locking plate of structure, the locking plate of this kind of lever construction, is it is obvious that be the needs when releasing blade locking and extracting blade The pressing force for maintaining locking plate rear end always is that the hand of user is needed to maintain pressing lock stator rear end, another hand Blade exchange is extracted, is used more troublesome.

Summary of the invention

Purpose of the utility model is to solve above-mentioned problems, it is desirable to provide a kind of structure is simple, assembly side Just, the cutter head structure of portable trimmer knife easy to operate.

The utility model is achieved through the following technical solutions.

The utility model is a kind of cutter head structure of portable trimmer knife, including head body, after the head body End is provided with the connecting hole for handle connection, and the head body includes substrate and cover board, and the substrate front end is provided with knife Piece insert port, the substrate inside is provided with blade putting groove, sliding groove and spring groove, wherein the blade putting groove and blade Insert port connection, the sliding groove is connected to blade putting groove and the submergence depth of the sliding groove is greater than the sinking of insert groove Depth, putting in the sliding groove has the lock pin that can be slided along sliding groove close to or far from blade putting groove, and the cover board exists It is straight that the position of corresponding lock pin is provided with the pin body that the strip through-hole that appearance latch pin ends pass through and the lock pin are located in strip through-hole Diameter is less than the pin body diameter being located on the inside of cover board, is provided with the push button being connected and fixed with latch pin ends, institute on the outside of the cover board It states and puts promising lock pin in spring groove close to the spring of blade putting groove offer elastic force, the cover board is connected by connected nail and substrate It connects fixed blade putting groove, sliding groove and spring groove can be covered.

Wherein, the blade of above-mentioned head body assembly has universal architecture, i.e., is designed with two bayonets, knife at blade back The structure of piece belongs to the prior art.

Preferably, the lock pin includes the first pin body, the second pin body and third pin body, and the first pin body is placed in sliding groove In and it is described first pin body height be higher than sliding groove depth, it is described second pin body be placed in strip through-hole and it is described second pin The diameter of body is less than the diameter of the first pin body, and the third pin body is connected and fixed with push button and the diameter of the third pin body is less than Or the diameter equal to the second pin body.In the technical scheme, the first pin body and push button cooperate the limitation to lock pin, can guarantee to lock Pin connect integral with cover board, in assembly or disassembly cover board, can be avoided the loss of the relatively small lock pin of volume, simultaneously Be conducive to the cooperation of lock pin and sliding groove, reduce fit clearance, improve the fluency of sliding.

Preferably, the slot bottom of the blade putting groove is provided with shell fragment groove, and putting in the shell fragment groove has compression elastic slice, institute It states and compresses elastic slice with the trigger unit higher than slot bottom height.In the technical scheme, it can be touched after blade insertion blade putting groove The trigger unit for compressing elastic slice, which makes compression elastic slice generate shape, becomes blade offer compression elastic force, compresses blade towards cover board direction, Even if in the case that lock pin does not lock blade, blade will not be detached from head body because of gravity, safety is improved.

Preferably, the outer surface of the cover board is provided with the groove for holding push button sliding in the position of corresponding push button.At this In technical solution, push button, which is placed in groove, can reduce push button opposing cover plates outer surface height outstanding, can reduce cutter head Integral thickness, and the sliding of push button can be oriented to.

Preferably, the spring is wire spring, and one end and the spring groove of the wire spring compress, and the other end is supported with lock pin Pressure.

The utility model has the advantage of structure is simple, and easy to assembly, the end of lock pin connects after passing through cover board with push button It connects, in assembly or disassembly cover board, can be avoided the loss of the relatively small lock pin of volume, the cover board is assembled with substrate Afterwards, wherein one end of the lock pin is seated in sliding groove to slide along sliding groove and lock close to or far from blade to blade Or unlock, it operates more convenient, while putting promising lock pin in spring groove and providing the bullet of elastic force close to blade putting groove Spring, spring are able to maintain that lock pin to the lock state of blade, and safety is good.The setting for compressing elastic slice, even if not locked in lock pin In the case where ledger-plate, blade will not be detached from head body because of gravity, further improve safety.

Detailed description of the invention

Fig. 1 is the explosive decomposition structural schematic diagram of the utility model.

Fig. 2 is the structural schematic diagram of the utility model substrate.

Fig. 3 is the structural schematic diagram that the utility model substrate is equipped with blade.

Fig. 4 is the schematic perspective view of the utility model lock pin.

Fig. 5 is the schematic perspective view of the utility model cover board.

Specific embodiment

The utility model is described further with reference to the accompanying drawing.Attached drawing only for illustration, should not be understood as Limitation to this patent.

For the more succinct the present embodiment that illustrates, certain in attached drawing or explanation well known to a person skilled in the art but with this The incoherent components of the main contents of creation can be omitted.In addition for convenient for stating, certain components have province in attached drawing Slightly, it zooms in or out, but does not represent the size or entire infrastructure of actual product.

As shown in Fig. 1 to Fig. 3, the utility model is a kind of cutter head structure of portable trimmer knife, including head body, institute Stating head body includes substrate 1 and cover board 8, and the rear end of the substrate 1 is provided with the connecting hole 2 for handle connection, the base 1 front end of plate is provided with blade insert port, and blade putting groove 3, sliding groove 4 and spring groove 5 are provided on the inside of the substrate 1, wherein The blade putting groove 3 is connected to blade insert port, and the sliding groove 4 is connected to blade putting groove 3 and the sliding groove 4 Submergence depth is greater than the submergence depth of insert groove 3, and putting in the sliding groove 4 has and can slide along sliding groove 4 close to or far from knife The lock pin 6 of piece putting groove 3, the cover board 8 are provided with the strip through-hole for holding 6 end of lock pin and passing through in the position of corresponding lock pin 6 81 and the lock pin 6 be located at the pin body diameter in strip through-hole 81 and be less than the pin body diameter for being located at the inside of cover board 8, the cover board 8 Outside be provided with the push button 9 being connected and fixed with 6 end of lock pin, put in the spring groove 5 promising lock pin 6 close to blade put Slot 3 provides the spring 7 of elastic force, and the cover board 8 is connected and fixed can cover blade putting groove 3, slide by connected nail and substrate 1 Dynamic slot 4 and spring groove 5.

As shown in Fig. 2, as a further improvement, the slot bottom of the blade putting groove 3 is provided with shell fragment groove 12, the elastic slice It puts to have in slot 12 and compresses elastic slice 13, the elastic slice 13 that compresses has the trigger unit for being higher than 3 slot bottom height of blade putting groove.At this In technical solution, the trigger unit that compression elastic slice 13 can be touched after blade insertion blade putting groove 3 makes to compress the generation deformation of elastic slice 13 Compression elastic force is provided for blade 10, compresses blade 10 towards 8 direction of cover board, even if the case where lock pin 6 does not lock blade 10 Under, blade 10 will not be detached from head body because of gravity, improve safety.

As shown in figures 1 and 3, the blade 10 of the head body assembly of the utility model has universal architecture, i.e., in blade 10 backs are designed with two bayonets 11, and the structure of blade 10 belongs to the prior art, and it will not be described in detail here.The lock pin 6 exists It can be caught in or be detached from one of bayonet 11 that 10 back of blade is equipped with when being slided along sliding groove 3, when lock pin 6 is caught in blade When in one of bayonet 11 at 10 backs, spring 7 provides the elastic force for compressing bayonet 11 for lock pin at this time, and blade 10 can not be from Blade insert port is taken out, i.e., lock pin 6 realizes the locking to blade 10, only need to be past by lock pin 6 when needing to realize that blade 10 unlocks 11 outside direction of bayonet is stirred, wherein for spring 7 in the present embodiment using wire spring, wire spring structure is relatively simple It is single, it is also easier to install.

As shown in figure 4, the lock pin 6 includes that the first pin body 61, second sells body in embodiment provided by the utility model 62 and third pin body 63, the first pin body 61 can be placed in sliding groove 4 with the cooperation of sliding groove 4 and the first pin body 61 Highly higher than the depth of sliding groove 4 so that the part that the first pin body 61 is higher than sliding groove 4 can cooperate with the bayonet 11 of blade 10, institute State that the second pin body 62 is placed in the strip through-hole 81 of cover board 8 and the diameter of the second pin body 62 is straight less than the first pin body 61 Diameter, the third pin body 63 is connected and fixed with push button 9 and the diameter of the third pin body 63 is less than or equal to the second pin body 62 Diameter.In the present embodiment, can be caught in the bayonet 11 of blade 10 while the first pin body 61 and sliding groove 4 cooperate will The locking of blade 10 and the diameter for selling body 61 due to first are greater than the second pin body 62 in the strip through-hole 81 of cover board 8 Diameter, the first pin body 61 can not can not be detached from outward cover board 8 under the limitation of the first pin body 61 by strip through-hole 81, lock pin 6, And push button 9 can then limit lock pin 6 towards being detached from the inside of cover board 8 after connecting with third pin body 63.Pass through the first pin body 61 and 9 liang of push button It is integral can to guarantee that lock pin 6 is connect with cover board 8, in assembly or disassembly cover board 8, can be avoided for restriction of the person to lock pin 6 The loss of the relatively small lock pin 6 of volume, while being conducive to the cooperation of lock pin 6 Yu sliding groove 4, fit clearance is reduced, improves and slides Dynamic fluency.

As shown in figure 5, as a further improvement, the outer surface of the cover board 8 is provided with appearance in the position of corresponding push button 9 The groove 82 that push button 9 slides.In the technical scheme, push button 9, which is placed in groove 82, can reduce 9 opposing cover plates of push button, 8 appearance Face height outstanding can reduce the integral thickness of cutter head, and can be oriented to the sliding of push button 9.

Above-described the embodiments of the present invention does not constitute the restriction to scope of protection of the utility model.Appoint It is practical new to should be included in this for modifications, equivalent substitutions and improvements etc. made by where within the spiritual principles of the utility model Within the claims of type.

Claims (5)

1. a kind of cutter head structure of portable trimmer knife, including head body, the rear end of the head body are provided with for hand The connecting hole of handle connection, which is characterized in that the head body includes substrate and cover board, and the substrate front end is provided with blade and inserts Entrance, the substrate inside is provided with blade putting groove, sliding groove and spring groove, wherein the blade putting groove and blade are inserted into Mouth connection, the sliding groove is connected to blade putting groove and the submergence depth of the sliding groove is greater than the submergence depth of insert groove, Putting in the sliding groove has the lock pin that can be slided along sliding groove close to or far from blade putting groove, and the cover board is in corresponding lock pin Position be provided with and hold the strip through-hole that passes through of latch pin ends and the lock pin is located at pin body diameter in strip through-hole less than position Pin body diameter on the inside of cover board is provided with the push button being connected and fixed with latch pin ends, the spring groove on the outside of the cover board It is middle to put promising lock pin and provide the spring of elastic force close to blade putting groove, the cover board by connected nail and substrate be connected and fixed with Blade putting groove, sliding groove and spring groove can be covered.

2. the cutter head structure of portable trimmer knife according to claim 1, which is characterized in that the lock pin includes the first pin Body, the second pin body and third pin body, the first pin body is placed in sliding groove and the height of the first pin body is higher than sliding groove Depth, the second pin body be placed in strip through-hole and the diameter of the second pin body less than the first pin body diameter, it is described Third pin body and push button are connected and fixed and the diameter of the third pin body is less than or equal to the second diameter for selling body.

3. the cutter head structure of portable trimmer knife according to claim 1, which is characterized in that the slot of the blade putting groove Bottom is provided with shell fragment groove, and putting in the shell fragment groove has compression elastic slice, and the elastic slice that compresses has the triggering for being higher than slot bottom height Portion.

4. the cutter head structure of portable trimmer knife according to claim 1, which is characterized in that the outer surface of the cover board The groove for holding push button sliding is provided in the position of corresponding push button.

5. the cutter head structure of portable trimmer knife according to claim 1, which is characterized in that the spring is wire spring, One end of the wire spring is compressed with spring groove, and the other end is compressed with lock pin.