CN112720706A

CN112720706A - Knife saw

Info

Publication number: CN112720706A
Application number: CN202011483523.8A
Authority: CN
Inventors: 李宁
Original assignee: Henan Longke Information Technology Co ltd
Current assignee: Henan Longke Information Technology Co ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-04-30

Abstract

The invention discloses a knife saw, which comprises a knife body, a knife handle and a saw blade, wherein the knife body comprises a knife frame, a movable cavity is formed in the knife frame, a sliding mechanism is arranged in the movable cavity, a balancing weight is sleeved on the outer side of the sliding mechanism, the top of the saw blade is fixedly connected with the bottom of the knife frame, the knife handle comprises a handle frame, the left side of the handle frame is fixedly connected with the right side of the knife frame, a pressing mechanism is arranged in the handle frame, the right side of the sliding mechanism is fixedly connected with the inside of the pressing mechanism, the sliding mechanism comprises a sliding rod, and the left side of the sliding rod is fixedly connected with the inside of the knife frame. This a sword saw has solved in machining process, and when needs are the less of thing cutting, conventional sword saw is harder, and cutting process needs longer time just can accomplish, uses inconvenient problem inadequately.

Description

Knife saw

Technical Field

The invention relates to the technical field of machining, in particular to a knife saw.

Background

A saber saw is a tool used to saw or rip wood or other objects to be worked. The saw blade consists of a saw blade and a saw body, wherein the saw blade consists of irregularly arranged saw teeth.

According to the disclosure in chinese patent CN102152324A, the embodiment of the present invention discloses a cutting tool, comprising: the cutter comprises a main blade, a cutter handle connected with the main blade and a plurality of auxiliary blades arranged at the tail end of the cutter handle. According to the cutter disclosed by the invention, the purpose of conveniently and quickly cutting smaller objects is realized through the plurality of auxiliary blades arranged at the tail end of the cutter handle.

In the machining process, when the object needs to be cut, the conventional knife saw is labor-consuming, the cutting process needs a long time to be completed, and the use is inconvenient.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a knife saw, which solves the problems that in the machining process, when an object needs to be cut, the conventional knife saw is labor-consuming, the cutting process needs a long time to be completed, and the use is inconvenient.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a knife saw, includes that cutter body, handle of a knife and saw blade constitute the knife saw body, the cutter body includes the rim, movable chamber has been seted up to the inside of rim, the inside in movable chamber is provided with slide mechanism, slide mechanism's outside cover is equipped with the balancing weight, the top of saw blade and the bottom fixed connection of rim, the handle of a knife includes the handle frame, the left side of handle frame and the right side fixed connection of rim, the inside of handle frame is provided with pressing means, slide mechanism's right side and pressing means's inside fixed connection.

Compared with the prior art, the manual triggering pressing mechanism controls the outflow and inflow of hydraulic oil, the pressing mechanism improves the use hand feeling of a user, saves labor and does not hurt the hand, the use comfort is improved by pressing the resilience force, the hydraulic transmission is sensitive, the sliding mechanism controls the displacement position of the balancing weight, the initial position of the balancing weight is close to the handle of the knife, the center of gravity is close to the user, the taking is convenient and labor-saving, when the pressing mechanism is pressed, the hydraulic oil triggers the sliding mechanism, the sliding mechanism drives the balancing weight to be far away from the user, the center of gravity is close to the center, when the object is cut, the center of gravity is at the central position, the object cutting is accelerated, meanwhile, the balancing weight increases the integral stress of the knife saw body, when the user cuts, the downward force applied to the wrist is weakened, the, the movement of the balancing weight is triggered, the position of the balancing weight is accurately controlled, and the use is convenient.

Preferably, slide mechanism includes the slide bar, the left side of slide bar and the inside fixed connection of knife rest frame, the inside of slide bar is provided with the recovery spring, the left end of recovery spring and the inside fixed connection of knife rest frame, the right-hand member fixed connection of recovery spring holds the piece.

Preferably, the outer side of the bearing block is fixedly connected with the inner side of the balancing weight block, the inner wall of the balancing weight block is slidably connected with the outer side of the sliding rod, the right end of the sliding rod is fixedly connected with the bearing rod, the inner side of the bearing rod is fixedly connected with a telescopic rod, and the left end of the telescopic rod is fixedly connected with the right side of the bearing block.

Preferably, the right end of the bearing rod is fixedly connected with the inside of the knife rest, and the right end of the telescopic rod penetrates through the knife rest and extends into the inside of the knife rest.

Preferably, the telescopic rod comprises a first slide bar, a second slide bar is slidably connected inside the first slide bar, a third slide bar is slidably connected inside the second slide bar, the inside of the first slide bar is communicated with the inside of the second slide bar, the inside of the second slide bar is communicated with the inside of the third slide bar, a hydraulic hole is formed inside the third slide bar, the outer side of the first slide bar is fixedly connected with the inside of the bearing rod, and the outer side of the first slide bar is slidably connected with the inside of the handle frame.

Compare with the tradition, the hydraulic pressure hole makes things convenient for the inflow of hydraulic oil, first slide bar, second slide bar and third slide bar, and the translation rate of inter combination control balancing weight is fast, and the resistance is little, and stability is high during the displacement, resumes the resilience of spring control balancing weight, prevents simultaneously that hydraulic oil from flowing in fast, drives the balancing weight too fast, produces the damage to the telescopic link.

Preferably, pressing means is including pressing the frame, press the inside fixedly connected with baffle of frame, the through-hole has been seted up to the inside of baffle, the left side fixedly connected with hydraulic telescoping rod of baffle, hydraulic telescoping rod's left side fixedly connected with presses the briquetting, the powerful spring of left side fixedly connected with of baffle, the left end of powerful spring and the inside fixed connection who presses the briquetting, the inside of pressing the briquetting is provided with stop gear, the right side fixedly connected with flexure strip of baffle, the right side fixedly connected with extrusion piece of flexure strip, the right side fixedly connected with protection bag of baffle.

Preferably, the left side of the pressing block is fixedly connected with a handle frame, the outer side of the handle frame is fixedly connected with the inside of the knife frame, the outer side of the pressing block is slidably connected with the inside of the handle frame, the extrusion block is slidably connected with the inside of the knife frame, and the outer side of the third sliding rod is fixedly connected with the inside of the pressing frame.

Preferably, the pressing frame is filled with hydraulic oil in an amount of% by weight.

Compared with the prior art, the pressing mechanism controls the inflow and outflow of hydraulic oil, controls the balancing weight, and controls the inward movement of the pressing block and the reciprocating movement of the extrusion block through the inward movement of the pressing block, thereby improving the comfort of a user, relieving the extrusion force of hands, being more labor-saving and convenient to use, and being not easy to hurt hands, when the user pulls back the body of the knife saw, the hands push the extrusion block forward, the central pressure of the hands drives the extrusion block to compress inwards, the extrusion hydraulic oil flows into the sliding mechanism, the balancing weight is driven to move forwards for a small distance, when the hands of the user pull backwards, the pressure of the hand center extruding the extrusion block disappears, the pressure is influenced by the elastic force of the elastic sheet and the recovery spring, the extrusion block rebounds outwards, the small part of the hydraulic oil flows back to the pressing frame, the balancing weight moves backwards for a small distance, the extrusion block reciprocates back and forth, also known as law of inertia, inertia law, any object all will keep uniform velocity linear motion or quiescent condition, until external force forces it to change motion state, in the use, the balancing weight has reciprocal inertia, it is laborsaving to use, accelerate cutting speed, accelerate the cutting of saw blade to the object, the gravity of balancing weight self accelerates the cutting of saw blade to the object more simultaneously, protection bag and flexure strip are when improving the extrusion piece resilience, when preventing that the user from cutting, the too big dynamics in hand center produces the damage to pressing mechanism, prevent that the inside excessive displacement of extrusion piece from producing more hydraulic oil and producing the damage to sliding mechanism.

Preferably, stop gear includes spacing spring, the left end of spacing spring and the inside fixed connection who presses the briquetting, the right-hand member fixedly connected with gag lever post of spacing spring, the first magnetic force piece of gag lever post right-hand member fixedly connected with, the right side magnetic force of first magnetic force piece is connected with second magnetic force piece, the outside and the inside sliding connection of knife rest of second magnetic force piece, the right side fixedly connected with pressfitting piece of second magnetic force piece, the outside and the inside sliding connection of knife rest of pressfitting piece, the bottom fixedly connected with of pressfitting piece returns the shell fragment, the bottom of returning the shell fragment and the inside fixed connection of knife rest.

Compare with the tradition, press a briquetting displacement position through stop gear control, and carry on spacingly to pressing the briquetting, the prevention is according to briquetting resilience, the position of control balancing weight, improve the stability of product, person's of facilitating the use's use, press down the pressfitting piece after finishing using and touch and make the balancing weight automatic resilience, the user is taken more laborsavingly, first magnetic force piece and the mutual magnetic force effect of second magnetic force piece, through zero clearance contact, trigger the gag lever post and move left, conveniently press the briquetting and resume, it is convenient to use.

(III) advantageous effects

The invention provides a knife saw. The method has the following beneficial effects:

(1) the invention is provided with the sliding mechanism and the balancing weight, the displacement position of the balancing weight is controlled through the sliding mechanism, the initial position of the balancing weight is close to the handle of the knife, the gravity center is close to a user, the taking is convenient and labor-saving, when the sliding mechanism is triggered by pressing the pressing mechanism, hydraulic oil triggers the sliding mechanism, the sliding mechanism drives the balancing weight to be far away from the user, the gravity center is close to the center, when an object is cut, the gravity center is in the central position, the object cutting is accelerated, meanwhile, the overall stress of the knife saw body is increased through the balancing weight, when the user cuts, the downward force applied to the wrist is.

(2) The hydraulic counterweight block is provided with the pressing mechanism and the sliding mechanism, the pressing mechanism is triggered manually to control the outflow and inflow of hydraulic oil, the pressing mechanism improves the use hand feeling of a user, saves labor and does not hurt the hand, the use comfort is improved by pressing the resilience force, meanwhile, the hydraulic transmission is sensitive, the pressing mechanism and the sliding mechanism are combined to trigger the movement of the counterweight block, the position of the counterweight block is controlled accurately, and the hydraulic counterweight block is convenient to use.

(3) The first sliding rod, the second sliding rod and the third sliding rod are mutually combined to control the moving speed of the balancing weight block to be fast, the resistance is small, the stability in displacement is high, the spring is restored to control the resilience of the balancing weight block, meanwhile, the hydraulic oil is prevented from fast flowing in, the balancing weight block is driven to be too fast, and the telescopic rod is damaged.

(4) The invention is provided with a pressing mechanism and a balancing weight, the inflow and outflow of hydraulic oil are controlled by the pressing mechanism, the balancing weight is controlled, the inward movement of the pressing block and the reciprocating movement of the extrusion block are controlled, the comfort of a user are improved, the extrusion force of a hand is relieved, the use is more labor-saving and convenient, the hand is not easy to hurt, when the user pulls back and pulls the knife saw body, the hand center pressure drives the extrusion block to compress inwards when the hand of the user pushes the extrusion block forwards, the extrusion hydraulic oil flows into a sliding mechanism to drive the balancing weight to displace forwards for a small distance, when the hand of the user pulls backwards, the pressure of the hand center extruding block disappears, the pressure is influenced by the elasticity of the elastic sheet and the recovery spring, the extrusion block rebounds outwards, a small part of the hydraulic oil flows back into the pressing frame, the balancing weight displaces backwards for a small distance, and, referring to Newton's first law of motion, for short Newton's first law, also known as law of inertia, inertia law, any object will keep at the uniform velocity linear motion or stationary state, until external force forces it to change the motion state, in the use, the balancing weight has reciprocal inertia, uses laborsavingly, accelerates the cutting speed, accelerates the cutting of saw blade to the object, and the gravity of balancing weight self accelerates the cutting of saw blade to the object more simultaneously.

(5) The invention is provided with the protective bag and the elastic sheet, the rebound resilience of the extrusion block is improved through the protective bag and the elastic sheet, the pressing mechanism is prevented from being damaged by excessive force at the center of a hand when a user cuts, and the sliding mechanism is prevented from being damaged by more hydraulic oil generated by excessive inward displacement of the extrusion block.

(6) The limiting mechanism is arranged, the displacement position of the pressing block is controlled through the limiting mechanism, the pressing block is limited, the pressing block is prevented from rebounding, the position of the balancing weight is controlled, the stability of a product is improved, the use of a user is facilitated, the balancing weight automatically rebounds when the pressing block is pressed after the use is finished, and the user can take the balancing weight more conveniently.

(7) The limiting rod is triggered to move leftwards through the mutual magnetic force action of the first magnetic block and the second magnetic block and through gapless contact, the pressing block is convenient to recover, and the use is convenient.

Drawings

FIG. 1 is a schematic structural diagram of a novel solid of the present invention;

FIG. 2 is a schematic structural view of a novel cross-section of the present invention;

FIG. 3 is a schematic three-dimensional structure of the novel sliding mechanism of the present invention;

FIG. 4 is a schematic structural view of the cross section of the novel telescopic rod of the present invention;

FIG. 5 is an enlarged view of a portion of the structure of FIG. 2;

fig. 6 is a schematic structural view of a top view section of the novel limiting mechanism of the present invention.

In the figure: 1 knife saw body, 2 cutter bodies, 21 cutter frames, 22 movable cavities, 23 sliding mechanisms, 231 sliding rods, 232 recovery springs, 233 bearing blocks, 234 bearing rods, 235 telescopic rods, 2351 first sliding rods, 2352 second sliding rods, 2353 third sliding rods, 2354 hydraulic holes, 24 balancing weights, 3 cutter handles, 31 handle frames, 32 pressing mechanisms, 321 pressing frames, 322 partition plates, 323 hydraulic telescopic rods, 324 pressing blocks, 325 powerful springs, 326 limiting mechanisms, 3261 limiting springs, 3262 limiting rods, 3263 first magnetic blocks, 3264 second magnetic blocks, 3265 pressing blocks, 3266 elastic sheets, 327 elastic sheets, 328 pressing blocks, 329 protective bags, 33 handle frames and 4 saw blades.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a knife saw, including cutter body 2, knife handle 3 and saw blade 4 constitute knife saw body 1, cutter body 2 includes knife frame 21, movable chamber 22 has been seted up to knife frame 21's inside, the inside in movable chamber 22 is provided with slide mechanism 23, slide mechanism 23's outside cover is equipped with balancing weight 24, the top of saw blade 4 and knife frame 21's bottom fixed connection, knife handle 3 includes handle frame 31, the left side of handle frame 31 and knife frame 21's right side fixed connection, handle frame 31's inside is provided with pressing means 32, slide mechanism 23's right side and pressing means 32's inside fixed connection.

When the device is used, a user holds the driving knife handle 3, the knife body 2 is driven to reciprocate back and forth, the saw blade 4 is driven to cut things, the pressing mechanism 32 is driven to extrude hydraulic oil, the hydraulic oil drives the sliding mechanism 23 to drive the balancing weight 24, compared with the traditional technology, the pressing mechanism 32 is triggered manually to control the outflow and inflow of the hydraulic oil, the pressing mechanism 32 improves the use hand feeling of the user, saves labor and does not hurt the hand, the use comfort is improved by pressing the resilience force, the hydraulic transmission is sensitive, the sliding mechanism 23 controls the displacement position of the balancing weight 24, the initial position of the balancing weight 24 is close to the knife handle 3, the center of gravity is close to the user, the taking is convenient and labor-saving, when the pressing mechanism 32 is pressed, the sliding mechanism 23 is triggered by the hydraulic oil, the sliding mechanism 23 drives the balancing weight 24 to, accelerate the object cutting, balancing weight 24 increases the whole atress of sword saw body 1 simultaneously, and during the user cutting, the wrist is applyed the dynamics downwards and is weakened, alleviates user's hand muscle, uses more laborsavingly, and pressing means 32 and sliding mechanism 23, the two combines, triggers the removal of balancing weight 24, and the position of accurate control balancing weight 24, it is convenient to use.

Example two:

referring to fig. 1-4, on the basis of the first embodiment, the present invention provides a technical solution: the sliding mechanism 23 includes a sliding rod 231, the left side of the sliding rod 231 is fixedly connected with the inside of the knife frame 21, a restoring spring 232 is arranged inside the sliding rod 231, the left end of the restoring spring 232 is fixedly connected with the inside of the knife frame 21, and the right end of the restoring spring 232 is fixedly connected with a bearing block 233.

The outside of accepting the piece 233 and the inside fixed connection of balancing weight 24, the inner wall of balancing weight 24 and the outside sliding connection of slide bar 231, slide bar 231 right-hand member fixedly connected with accepts pole 234, the inside fixedly connected with telescopic link 235 of accepting pole 234, the left end of telescopic link 235 and the right side fixed connection who accepts the piece 233.

The right end of the receiving rod 234 is fixedly connected to the inside of the knife frame 21, and the right end of the expansion rod 235 penetrates through the knife frame 21 and extends into the knife frame 21.

The telescopic link 235 includes a first slide bar 2351, the inside sliding connection of the first slide bar 2351 has a second slide bar 2352, the inside sliding connection of the second slide bar 2352 has a third slide bar 2353, the inside of the first slide bar 2351 is linked together with the inside of the second slide bar 2352, the inside of the second slide bar 2352 is linked together with the inside of the third slide bar 2353, a hydraulic hole 2354 has been seted up inside the third slide bar 2353, the outside of the first slide bar 2351 is fixedly connected with the inside of the carrying rod 234, the outside of the first slide bar 2351 is connected with the inside of the handle frame 31.

During the use, pressing mechanism 32 extrudees hydraulic oil, hydraulic oil flows into in the third slide bar 2353 through hydraulic pressure hole 2354, it moves to drive first slide bar 2351 left side, it moves to drive second slide bar 2352 left side, it moves to drive the piece 233 left side that holds, it moves to drive balancing weight 24 left side, it compresses to drive recovery spring 232, compare with the tradition, hydraulic pressure hole 2354 makes things convenient for the inflow of hydraulic oil, first slide bar 2351, second slide bar 2352 and third slide bar 2353, the translation rate of inter combination control balancing weight 24 is fast, the resistance is little, stability is high during the displacement, recovery spring 232 control balancing weight 24's resilience, prevent that hydraulic oil from flowing into fast simultaneously, it is too fast to drive balancing weight 24, produce the damage to telescopic link 235.

Example three:

referring to fig. 1-5, on the basis of the first embodiment and the second embodiment, the present invention provides a technical solution: pressing means 32 is including pressing frame 321, press frame 321's inside fixedly connected with baffle 322, the through-hole has been seted up to baffle 322's inside, baffle 322's left side fixedly connected with hydraulic telescoping rod 323, hydraulic telescoping rod 323's left side fixedly connected with presses briquetting 324, baffle 322's left side fixedly connected with powerful spring 325, the left end of powerful spring 325 and the inside fixed connection who presses briquetting 324, the inside of pressing briquetting 324 is provided with stop gear 326, baffle 322's right side fixedly connected with elastic sheet 327, elastic sheet 327's right side fixedly connected with extrusion piece 328, baffle 322's right side fixedly connected with protection bag 329.

The handle frame 33 is fixedly connected to the left side of the pressing block 324, the outer side of the handle frame 33 is fixedly connected to the inside of the knife frame 21, the outer side of the pressing block 324 is slidably connected to the inside of the handle frame 33, the pressing block 328 is slidably connected to the inside of the knife frame 21, and the outer side of the third slide bar 2353 is fixedly connected to the inside of the pressing frame 321.

The pressing frame 321 is filled with hydraulic oil at a filling amount of 100%.

When the hydraulic counterweight block 24 is used, a user presses the pressing block 324 in the pressing mechanism 32 to drive the strong spring 325 and the hydraulic telescopic rod 323 to compress, hydraulic oil in the pressing frame 321 is driven to quickly flow into the hydraulic hole 2354, the position of the counterweight block 24 is controlled, when the user pushes the extrusion block 328 forwards, the central pressure of the hand drives the extrusion block 328 to compress inwards, the extruded hydraulic oil flows into the sliding mechanism 23 to drive the counterweight block 24 to displace forwards for a short distance, when the user pulls the hand backwards, the pressure of the central hand extruding the extrusion block 328 disappears, the extrusion block 328 rebounds outwards under the influence of the elastic force of the elastic sheet 327 and the restoring spring 232, a small part of the hydraulic oil flows back into the pressing frame 321, and the counterweight block 24 displaces backwards for a short distance, compared with the prior art, the pressing mechanism 32 controls the inflow and outflow of the hydraulic oil, controls the counterweight block 24, and moves inwards through the pressing block 324 and reciprocates back and forth with the extrusion block, the comfort level of a user is improved, the hand extrusion force is relieved, the use is more labor-saving and convenient, the hand is not easy to hurt, when the user pulls back the pulling knife saw body 1, the hand center pressure drives the extrusion block 328 to compress inwards when the hand of the user pushes the extrusion block 328 forwards, the extrusion hydraulic oil flows into the sliding mechanism 23 to drive the counterweight block 24 to displace forwards for a small distance, when the hand of the user pulls backwards, the pressure of the hand center extruding the extrusion block 328 disappears, the extrusion block 328 rebounds outwards under the influence of the elastic force of the elastic sheet 327 and the recovery spring 232, the small part of the hydraulic oil flows back to the pressing frame 321, the counterweight block 24 displaces backwards for a small distance, the extrusion block 328 reciprocates back and forth, refer to the first law of Newton, which is called the first law of Newton, also known as inertia and inertia, and inertia at uniform speed, any object is required to keep linear motion or, until external force forces it to change motion state, in the use, balancing weight 24 has reciprocal inertia, use laborsavingly, accelerate cutting speed, accelerate the cutting of saw blade 4 to the object, the gravity of balancing weight 24 self accelerates the cutting of saw blade 4 to the object more simultaneously, protection bag 329 and flexure strip 327 are in the time of improving extrusion piece 328 resilience, when preventing that the user from cutting, the too big dynamics in hand center produces the damage to pressing means 32, prevent that extrusion piece 328 from producing more hydraulic oil to sliding mechanism 23 to produce the damage.

Example four:

referring to fig. 1-6, on the basis of the first embodiment, the second embodiment and the third embodiment, the present invention provides a technical solution: limiting mechanism 326 includes limiting spring 3261, limiting spring 3261's left end and the inside fixed connection who presses the briquetting 324, limiting spring 3261's right-hand member fixedly connected with gag lever post 3262, gag lever post 3262 right-hand member fixedly connected with first magnetic block 3263, first magnetic block 3263's right side magnetic connection has second magnetic block 3264, the outside and the inside sliding connection of sword frame 21 of second magnetic block 3264, the right side fixedly connected with pressfitting block 3265 of second magnetic block 3264, the outside and the inside sliding connection of sword frame 21 of pressfitting block 3265, the bottom fixedly connected with resilience piece 3266 of pressfitting block 3265, the bottom of resilience piece 3266 and the inside fixed connection of sword frame 21.

When the device is used, the pressing block 324 moves inwards to drive the limiting rod 3262 to move rightwards, when the limiting mechanism 326 is triggered, the limiting spring 3261 pushes the limiting rod 3262 to move to the inside of the knife frame 21 to limit the pressing block 324, the pressing block 324 is prevented from rebounding, the position of the balancing weight 24 is controlled, after the device is used, the second magnetic block 3264 is driven to move leftwards by pressing the pressing block 3265, the first magnetic block 3263 is driven to move leftwards, the limiting rod 3262 is driven to move leftwards, the pressing block 324 is always pushed by the strong spring 325, when the first magnetic block 3263 is separated from the inside of the knife frame 21, the pressing block 324 rebounds rapidly, hydraulic oil reflows, the balancing weight 24 recovers, compared with the prior art, the device controls the position of the pressing block 324 to move through the limiting mechanism 326, limits the pressing block 324, prevents the pressing block 324 from rebounding, controls the position of the balancing weight 24, improves the stability of a, pressing block 3265 after finishing using and touching and making the automatic resilience of balancing weight 24, the user takes more laborsavingly, and first magnetic block 3263 and the mutual magnetic force of second magnetic block 3264 contact through the zero clearance, trigger gag lever post 3262 and move left, conveniently press block 324 to resume, it is convenient to use.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a knife saw, includes cutter body (2), handle of a knife (3) and saw blade (4) constitution knife saw body (1), its characterized in that: cutter body (2) include sword frame (21), movable chamber (22) have been seted up to the inside of sword frame (21), the inside in activity chamber (22) is provided with slide mechanism (23), the outside cover of slide mechanism (23) is equipped with balancing weight (24), the top of saw blade (4) and the bottom fixed connection of sword frame (21), handle of a knife (3) are including handle frame (31), the left side of handle frame (31) and the right side fixed connection of sword frame (21), the inside of handle frame (31) is provided with pressing means (32), the right side of slide mechanism (23) and the inside fixed connection of pressing means (32).

2. The saber saw as defined in claim 1, wherein: slide mechanism (23) are including slide bar (231), the inside fixed connection of the left side of slide bar (231) and sword frame (21), the inside of slide bar (231) is provided with recovery spring (232), the inside fixed connection of the left end of recovery spring (232) and sword frame (21), the right-hand member fixed connection of recovery spring (232) holds piece (233).

3. The saber saw as defined in claim 2, wherein: the outside of accepting piece (233) and the inside fixed connection of balancing weight (24), the inner wall of balancing weight (24) and the outside sliding connection of slide bar (231), slide bar (231) right-hand member fixedly connected with accepts pole (234), the inside fixedly connected with telescopic link (235) of accepting pole (234), the left end of telescopic link (235) and the right side fixed connection who accepts piece (233).

4. The saber saw as defined in claim 1, wherein: the right end of the bearing rod (234) is fixedly connected with the inside of the knife frame (21), and the right end of the telescopic rod (235) penetrates through the knife frame (21) and extends to the inside of the knife frame (21).

5. The saber saw as defined in claim 3, wherein: the telescopic link (235) comprises a first slide bar (2351), the inside sliding connection of the first slide bar (2351) is provided with a second slide bar (2352), the inside sliding connection of the second slide bar (2352) is provided with a third slide bar (2353), the inside of the first slide bar (2351) is communicated with the inside of the second slide bar (2352), the inside of the second slide bar (2352) is communicated with the inside of the third slide bar (2353), a hydraulic hole (2354) is arranged in the third slide bar (2353), the outside of the first slide bar (2351) is fixedly connected with the inside of the bearing rod (234), and the outside of the first slide bar (2351) is connected with the inside of the handle frame (31) in a sliding manner.

6. The saber saw as defined in claim 1, wherein: pressing means (32) is including pressing frame (321), inside fixedly connected with baffle (322) of pressing frame (321), the through-hole has been seted up to the inside of baffle (322), left side fixedly connected with hydraulic telescoping rod (323) of baffle (322), the left side fixedly connected with of hydraulic telescoping rod (323) presses briquetting (324), the left side fixedly connected with powerful spring (325) of baffle (322), the left end of powerful spring (325) and the inside fixed connection who presses briquetting (324), the inside of pressing briquetting (324) is provided with stop gear (326), the right side fixed connection elastic sheet (327) of baffle (322), the right side fixedly connected with extrusion block (328) of elastic sheet (327), the right side fixedly connected with protective bag (329) of baffle (322).

7. The saber saw as defined in claim 6, wherein: the utility model discloses a sword frame, including the sword frame, press block (324), press the left side fixedly connected with handle frame (33) of piece (324), the outside of handle frame (33) and the inside fixed connection of sword frame (21), the outside and the inside sliding connection of handle frame (33) of pressing block (324), the inside sliding connection of extrusion block (328) and sword frame (21), the outside and the inside fixed connection who presses frame (321) of third slide bar (2353).

8. The saber saw as defined in claim 6, wherein: the pressing frame (321) is filled with hydraulic oil, and the filling amount is 100%.

9. The saber saw as defined in claim 6, wherein: the limiting mechanism (326) comprises a limiting spring (3261), the left end of the limiting spring (3261) is fixedly connected with the inside of the pressing block (324), the right end of the limiting spring (3261) is fixedly connected with a limiting rod (3262), the right end of the limiting rod (3262) is fixedly connected with a first magnetic block (3263), the right side of the first magnetic block (3263) is magnetically connected with a second magnetic block (3264), the outer side of the second magnetic block (3264) is connected with the inside of the knife frame (21) in a sliding mode, the right side of the second magnetic block (3264) is fixedly connected with a pressing block (3265), the outer side of the pressing block (3265) is connected with the inside of the knife frame (21) in a sliding mode, the bottom of the pressing block (3265) is fixedly connected with a resilience piece (3266), and the bottom of the resilience piece (3266) is fixedly connected with the inside of the knife frame (21).