CN103341662A - Springing-type powerful cutting nippers - Google Patents

Springing-type powerful cutting nippers Download PDF

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Publication number
CN103341662A
CN103341662A CN2013103094504A CN201310309450A CN103341662A CN 103341662 A CN103341662 A CN 103341662A CN 2013103094504 A CN2013103094504 A CN 2013103094504A CN 201310309450 A CN201310309450 A CN 201310309450A CN 103341662 A CN103341662 A CN 103341662A
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CN
China
Prior art keywords
handle
cylinder body
piston
cutting nippers
springing
Prior art date
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Granted
Application number
CN2013103094504A
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Chinese (zh)
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CN103341662B (en
Inventor
李立新
芮德华
代勇
杨镇昌
李开强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Huachuan Electric Parts Co Ltd
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Chengdu Huachuan Electric Parts Co Ltd
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Application filed by Chengdu Huachuan Electric Parts Co Ltd filed Critical Chengdu Huachuan Electric Parts Co Ltd
Priority to CN201310309450.4A priority Critical patent/CN103341662B/en
Publication of CN103341662A publication Critical patent/CN103341662A/en
Application granted granted Critical
Publication of CN103341662B publication Critical patent/CN103341662B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The invention discloses a cutting tool, and particularly relates to springing-type powerful cutting nippers. The springing-type cutting nippers are applicable to emergency environments and are good in safety. Blank ammunition is adopted in the cutting nippers as a power source, a percussion structure is used for triggering the blank ammunition, so that the pressure inside a cylinder body rises rapidly and then a piston is driven to move, and therefore a movable tool bit can conduct material cutting under the driving of the piston. The blank ammunition itself is convenient to carry so that the springing-type powerful cutting nippers can work in various occasions. Meanwhile, due to the fact that automatic pressure releasing holes are formed in the circumferential wall of the cylinder body, after the movable tool bit finishes cutting, the piston inevitably passes through the automatic pressure releasing holes, at the moment, the piston cannot seal the automatic pressure releasing holes, the pressure inside the cylinder body can quickly decrease to be within a safe range, and a safe environment is provided for follow-up operation.

Description

The powerful cutting nippers of springing formula
Technical field
The present invention relates to a kind of cutting implement, the powerful cutting nippers of especially a kind of springing formula.
Background technology
In the process of arranging reinforcing bar, cable, all need reinforcing bar and cable are cut.Commonly used is electric cutting tool and hydraulic pressure cutting tool, for example electric saw and hydraulic tongs at present.Though these instrument versatilities are stronger, just can't use at some special occasions, for example in the area that lacks electric power.And the laying of present submerged cable also can't be adopted above-mentioned instrument.
Summary of the invention
Technical problem to be solved by this invention provides a kind of emergency environmental and powerful cutting nippers of security springing formula preferably of going for.
The present invention solves the powerful cutting nippers of springing formula that its technical problem adopts, comprise the cutter base, cylinder assembly and the breech bolt assembly that connect successively, described cutter base comprises movable cutter head and tool rest, and described movable cutter head is installed in also can be along the tool rest axially-movable on the tool rest; Described cylinder assembly comprises cylinder body, piston and elastic component, and described piston is arranged in the cylinder body, and described elastic component is arranged between piston and the cylinder body front end; Described breech bolt assembly comprises that sleeve pipe, trigger, cartridge chamber and percussion structure form, and described cartridge chamber is arranged on the sleeve pipe front end, and described percussion structure is arranged on behind the cartridge chamber and is complementary correspondingly with cartridge chamber, and described trigger is arranged on the sleeve outer wall and with the percussion structure and links; Described tool rest links to each other with the cylinder body front end, and described movable cutter head links to each other with described piston; The rear end of described cylinder body is connected with the front end of described sleeve pipe, and described cartridge chamber is corresponding with piston; The circumferential wall of described cylinder body is provided with the releasing pressure automatically hole, and the described hole of letting out automatically is positioned at piston tip within the range of movement on the inboard wall of cylinder block.
Further be, also comprise grip assembly, described grip assembly is installed on the cylinder body of cylinder assembly.
Further be, described grip assembly comprises the handle seat, the handle main body, the handle backstay, the handle spring, nut and grip, described handle seat is fixedly connected on the described outer wall of cylinder block, described handle main body and described handle seat are hinged, described grip is set on the handle main body, offer through hole vertically on the described handle main body, described handle backstay has a big end and an end of thread, described handle backstay is arranged in the through hole of handle main body, the big end of handle backstay is corresponding with described handle seat, described handle spring be set on the handle backstay and be stuck in big end and the handle main body between, the end of thread of described handle backstay passes grip and links to each other with described nut.
Further be, described handle seat is installed in place, releasing pressure automatically hole, and described handle seat is provided with gas pressure relief slot, and described gas pressure relief slot is connected with described releasing pressure automatically hole.
Further be, described percussion structure comprises firing pin and percussion spring, and it is interior and corresponding with cartridge chamber that described firing pin is arranged on sleeve pipe, and described percussion spring is arranged between firing pin and the sleeve pipe rear end, described firing pin and the interlock of described trigger.
Further be that described trigger is provided with safety plug.
Further be, described cutter base also comprises fixedly cutter head, and described fixedly cutter head is fixed on the tool rest and with described movable cutter head and is oppositely arranged.
Further be that the connection between cutter base, cylinder assembly and the breech bolt assembly all adopts waterproof sealing to connect.
The invention has the beneficial effects as follows: this cutting nippers adopts blank cartridge as power source, utilizes the percussion structure to cause blank cartridge, make that the pressure in the cylinder body sharply raises, thereby promote the piston motion, and then movable cutter head carries out the cutting of material under the drive of piston.Itself is easy to carry blank cartridge, makes this cutting nippers can be played a role in various occasions.Simultaneously, because the circumferential wall of cylinder body is provided with the releasing pressure automatically hole, after movable cutter head cutting is finished, piston must have been crossed the releasing pressure automatically hole, piston can't seal the releasing pressure automatically hole this moment, pressure in the cylinder body just can drop in the safe range fast, for follow-up operation provides safe environment.Adopt grip assembly can make the easier operation of this cutting nippers, the releasing pressure automatically hole is set to be covered by grip assembly simultaneously, can make the discharge of detouring of pressure release gas, avoids the direct blasting operation person of gas of pressure release.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the figure that partly cuts open of the present invention;
Fig. 3 is the schematic diagram of grip assembly;
Parts, position and numbering among the figure: cutter base 1, cylinder assembly 2, breech bolt assembly 3, grip assembly 4, tool rest 11, movable cutter head 12, fixedly cutter head 13, cylinder body 21, piston 22, elastic component 23, releasing pressure automatically hole 24, sleeve pipe 31, cartridge chamber 32, trigger 33, firing pin 34, percussion spring 35, handle seat 41, handle main body 42, handle backstay 43, handle spring 44, nut 45, grip 46, gas pressure relief slot 47.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2, the present invention includes the cutter base 1, cylinder assembly 2 and the breech bolt assembly 3 that connect successively, described cutter base 1 comprises movable cutter head 12 and tool rest 11, described movable cutter head 12 is installed on the tool rest 11 and can generally adopts the sliding tray structure to realize axially-movable along tool rest 11 axially-movables; Described cylinder assembly 2 comprises cylinder body 21, piston 22 and elastic component 23, and described piston 22 is arranged in the cylinder body 21, and described elastic component 23 is arranged between piston 22 and cylinder body 21 front ends; Described breech bolt assembly 3 comprises sleeve pipe 31, trigger 33, cartridge chamber 32 and percussion structure composition, described cartridge chamber 32 is arranged on sleeve pipe 31 front ends, described percussion structure is arranged on cartridge chamber 32 back and is complementary correspondingly with cartridge chamber 32, and described trigger 33 is arranged on sleeve pipe 31 outer walls and with the percussion structure and links; Described tool rest 11 links to each other with cylinder body 21 front ends, and described movable cutter head 12 links to each other with described piston 22; The rear end of described cylinder body 21 is connected with the front end of described sleeve pipe 31, and described cartridge chamber 32 is corresponding with piston 22; The circumferential wall of described cylinder body 21 is provided with releasing pressure automatically hole 24, and the described hole of letting out automatically is positioned at piston 22 tops within the range of movement on cylinder body 21 inwalls.This cutting nippers adopts blank cartridge as power source, and tool rest 11 interconnects with the cylinder body 21 preferred structures that removably connect that adopt, and preferably adopts helicitic texture, and such benefit is to take off tool rest 11 easily, thus better movable cutter head 12 easily; The rear end of cylinder body 21 and sleeve pipe 31 adopt and removably connect, and are preferably to be threaded, and are convenient to take off breech bolt assembly 3 like this.On the sleeve pipe 31 of breech bolt assembly 3, preferably arrange and shoot structure, namely common single-shot rifle shoot structure, so conveniently shoot with ejection and operate.In use, at first shoot, blank cartridge is installed in the cartridge chamber 32, if adopted and shoot structure, then be rotated counterclockwise and shoot structure and put in place, pull back and expose port, the power bullet is packed in the cartridge chamber 32; Promote to shoot structure then forward and push away bullet and advance thorax, turning clockwise then shoots structure and finishes locking.The object that to shear is put in the tool rest 11 then, over against good movable cutter head 12; After guaranteeing safety, press the trigger handle downwards to trigger trigger 33, trigger 33 triggers the percussion structure, thereby percussion power bullet, produce high pressure air pressure during the blank cartridge burning, air pressure promotes piston 22 drive activity cutter heads 12 rapid movements, thereby finish shearing, after shearing, the releasing pressure automatically hole 24 owing to moved in the top of piston 22, therefore releasing pressure automatically hole 24 is no longer sealed by piston 22, and at this moment unnecessary pressure will be discharged by releasing pressure automatically hole 24, makes the air pressure in the cylinder assembly 2 recover normal fast, piston 22 returns to original position again under the effect of elastic component 23, because the present invention has releasing pressure automatically hole 24, makes that the air pressure of cylinder body 21 is lower, therefore movable cutter head 12 need not to use back-moving spring also can set back under the elastic force of elastic component 23.The top of piston 22 is piston 22 towards an end of cartridge chamber 32, the position in releasing pressure automatically hole 24 is positioned at piston 22 tops within the range of movement on cylinder body 21 inwalls, the particular location in releasing pressure automatically hole 24 will be decided according to the actual requirements, with reference to figure 2, releasing pressure automatically hole 24 setting of more turning left, after then the time of pressure release more leaned on, ablation energy was also more big; Otherwise it is then opposite.Releasing pressure automatically hole 24 also has an advantage to be, even the present invention lets alone when how to shear object shooting Shi Buxu, also can pull the trigger, movable cutter head 12 can be not impaired, and namely in a single day piston 22 crosses releasing pressure automatically hole 24, and then the air pressure in the cylinder body 21 will quick pressure releasing, piston 22 can only rely on inertia to advance with movable cutter head 12, piston 22 motion can be slowed down under the obstruction of elastic component 23 again gradually, and namely movable cutter head 12 will be a significant slowdown at latter end, with regard to can not be violent strike tool rest 11 and cause damage.Just because of these characteristics, even the bigger blank cartridge of explosion energy also can be in order to cutting the less cable of intensity, reinforcing bar, and can not cause the damage of movable cutter head 12, therefore, under various emergency conditions, the present invention only need use one type blank cartridge to get final product.This product can be worked in low temperature-40 ℃ and high temperature+50 ℃ environment.This product can (annotate: 23 ℃ of sand dust temperature, relative humidity be less than 30%, wind speed 8.9 ± 1.2m/s, drifting dust concentration 10.6g/m at the sand dust environment 3) lining works.If each parts adopts and is tightly connected, i.e. connection between cutter base 1, cylinder assembly 2 and the breech bolt assembly 3 all adopts waterproof sealing to connect.Then this product can be worked under water.Environmental testing is that the test specimen of filling power bullet is put into the submerging test case, and immersion deeply be that test is pulled the trigger in taking-up after keeping 24h under the state of 1m.
Grip cutting nippers for convenience, as Fig. 1 and Fig. 2, the present invention also comprises grip assembly 4, and described grip assembly 4 is installed on the cylinder body 21 of cylinder assembly 2.Just can hold grip assembly 4 in use, avoid operator's the direct cylinder body of hand 21 contacts.Make things convenient for operation, also protected safety.
Concrete, as shown in Figure 3, described grip assembly 4 comprises handle seat 41, handle main body 42, handle backstay 43, handle spring 44, nut 45 and grip 46, described handle seat 41 is fixedly connected on described cylinder body 21 outer walls, described handle main body 42 and described handle seat 41 are hinged, described grip 46 is set on the handle main body 42, offer through hole vertically on the described handle main body 42, described handle backstay 43 has a big end and an end of thread, described handle backstay 43 is arranged in the through hole of handle main body 42, the big end of handle backstay 43 is corresponding with described handle seat 41, described handle spring 44 be set on the handle backstay 43 and be stuck in big end and handle main body 42 between, the end of thread of described handle backstay 43 passes grip 46 and links to each other with described nut 45.At this moment, can select handle main body 42 as required.When needs rotation handle main body 42, rotation nut 45 makes handle backstay 43 away from 41 motions of handle seat, thereby handle backstay 43 is no longer contacted with handle seat 41 that handle main body 42 and grip 46 just can rotate freely like this; When reaching the desired position, reverse rotation nut 45 makes handle backstay 43 also finally withstand on the handle seat 41 to 42 motions of handle seat, and handle main body 42 and grip 46 just can't rotate again like this.This grip assembly 4 namely can adjusting angle, also can fix reliably, has made things convenient for operation, has also guaranteed security.
Safer for the discharge that makes pressure release gas, as shown in Figures 2 and 3, described handle seat 41 is installed in 24 places, releasing pressure automatically hole, and described handle seat 41 is provided with gas pressure relief slot 47, and described gas pressure relief slot 47 is connected with described releasing pressure automatically hole 24.Pressure release gas can be subjected to the guiding of gas pressure relief slot 47, thereby discharge slowly after 24 ejection of releasing pressure automatically hole, has avoided pressure release gas directly to spray and infringement those present person.Gas pressure relief slot 47 1 ends are communicated with atmosphere, and the other end is communicated with releasing pressure automatically hole 24, and it is big that the end that gas pressure relief slot 47 connects atmosphere can arrange, thereby reduce the speed of gas ejection.Gas pressure relief slot 47 is general parallel with the axis of cylinder body 21, and an end of connection atmosphere is towards cutter base 1, so just can improve security to greatest extent.
Concrete, as shown in Figure 2, described percussion structure comprises firing pin 34 and percussion spring 35, and it is interior and corresponding with cartridge chamber 32 that described firing pin 34 is arranged on sleeve pipe 31, described percussion spring 35 is arranged between firing pin 34 and sleeve pipe 31 rear ends, described firing pin 34 and described trigger 33 interlocks.
In order to guarantee safety, as shown in Figure 2, described trigger 33 is provided with safety plug.When last blank cartridge, safety plug must be loaded onto, to avoid taking place maloperation, cause peril.
In order to improve shear ability, as shown in Figure 2, described cutter base 1 also comprises fixedly cutter head 13, and described fixedly cutter head 13 is fixed on the tool rest 11 and with described movable cutter head 12 and is oppositely arranged.The cutting of this moment can be carried out simultaneously from the both sides of reinforcing bar or cable, has improved shear ability.

Claims (8)

1. the powerful cutting nippers of springing formula, it is characterized in that: comprise the cutter base (1), cylinder assembly (2) and the breech bolt assembly (3) that connect successively, described cutter base (1) comprises movable cutter head (12) and tool rest (11), and described movable cutter head (12) is installed in tool rest (11) upward and can be along tool rest (11) axially-movable; Described cylinder assembly (2) comprises cylinder body (21), piston (22) and elastic component (23), and described piston (22) is arranged in the cylinder body (21), and described elastic component (23) is arranged between piston (22) and cylinder body (21) front end; Described breech bolt assembly (3) comprises sleeve pipe (31), trigger (33), cartridge chamber (32) and percussion structure composition, described cartridge chamber (32) is arranged on sleeve pipe (31) front end, described percussion structure is arranged on cartridge chamber (32) back and is complementary correspondingly with cartridge chamber (32), and described trigger (33) is arranged on sleeve pipe (31) outer wall and with the percussion structure and links; Described tool rest (11) links to each other with cylinder body (21) front end, and described movable cutter head (12) links to each other with described piston (22); The rear end of described cylinder body (21) is connected with the front end of described sleeve pipe (31), and described cartridge chamber (32) is corresponding with piston (22); The circumferential wall of described cylinder body (21) is provided with releasing pressure automatically hole (24), and the described hole of letting out automatically is positioned at piston (22) top within the range of movement on cylinder body (21) inwall.
2. the powerful cutting nippers of springing formula as claimed in claim 1, it is characterized in that: also comprise grip assembly (4), described grip assembly (4) is installed on the cylinder body (21) of cylinder assembly (2).
3. the powerful cutting nippers of springing formula as claimed in claim 2, it is characterized in that: described grip assembly (4) comprises handle seat (41), handle main body (42), handle backstay (43), handle spring (44), nut (45) and grip (46), described handle seat (41) is fixedly connected on described cylinder body (21) outer wall, described handle main body (42) is hinged with described handle seat (41), described grip (46) is set on the handle main body (42), offer through hole vertically on the described handle main body (42), described handle backstay (43) has a big end and an end of thread, described handle backstay (43) is arranged in the through hole of handle main body (42), the big end of handle backstay (43) is corresponding with described handle seat (41), described handle spring (44) is set in handle backstay (43) and goes up and be stuck between big end and the handle main body (42), and the end of thread of described handle backstay (43) passes grip (46) and links to each other with described nut (45).
4. the powerful cutting nippers of springing formula as claimed in claim 3, it is characterized in that: described handle seat (41) is installed in releasing pressure automatically hole (24) and locates, described handle seat (41) is provided with gas pressure relief slot (47), and described gas pressure relief slot (47) is connected with described releasing pressure automatically hole (24).
5. the powerful cutting nippers of springing formula as claimed in claim 1, it is characterized in that: described percussion structure comprises firing pin (34) and percussion spring (35), it is interior and corresponding with cartridge chamber (32) that described firing pin (34) is arranged on sleeve pipe (31), described percussion spring (35) is arranged between firing pin (34) and sleeve pipe (31) rear end, described firing pin (34) and described trigger (33) interlock.
6. the powerful cutting nippers of springing formula as claimed in claim 1, it is characterized in that: described trigger (33) is provided with safety plug.
7. the powerful cutting nippers of springing formula as claimed in claim 1, it is characterized in that: described cutter base (1) also comprises fixedly cutter head (13), described fixedly cutter head (13) is fixed on tool rest (11) and goes up and be oppositely arranged with described movable cutter head (12).
8. as the powerful cutting nippers of the described springing formula of the arbitrary claim of claim 1 to 7, it is characterized in that: the connection between cutter base (1), cylinder assembly (2) and the breech bolt assembly (3) all adopts waterproof sealing to connect.
CN201310309450.4A 2013-07-22 2013-07-22 Springing formula strength cutting nippers Expired - Fee Related CN103341662B (en)

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Application Number Priority Date Filing Date Title
CN201310309450.4A CN103341662B (en) 2013-07-22 2013-07-22 Springing formula strength cutting nippers

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Application Number Priority Date Filing Date Title
CN201310309450.4A CN103341662B (en) 2013-07-22 2013-07-22 Springing formula strength cutting nippers

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CN103341662A true CN103341662A (en) 2013-10-09
CN103341662B CN103341662B (en) 2016-11-09

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103552041A (en) * 2013-11-01 2014-02-05 王映辉 Energy-storage catapult impact hammer

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2803649Y (en) * 2005-05-26 2006-08-09 胡鸿鸣 Rotary handle of tool
CN2897513Y (en) * 2006-04-12 2007-05-09 林瑞兴 Powerful impacting cutter
CN200988226Y (en) * 2006-12-01 2007-12-12 林海滨 Hand held hydraulic cutter
CN201008928Y (en) * 2006-12-14 2008-01-23 中国船舶重工集团公司第七一○研究所 Cable cutter
CN201257483Y (en) * 2008-08-20 2009-06-17 石家庄中煤装备制造有限公司 Hydraulic amputator
CN101992443A (en) * 2010-09-15 2011-03-30 苏州卓识商务咨询有限公司 Pneumatic hammer
CN202461371U (en) * 2012-03-01 2012-10-03 太原市福米嘉精密机械有限公司 Steel bar cutter
CN202963601U (en) * 2012-12-13 2013-06-05 中国船舶重工集团公司第七一〇研究所 Large aperture pneumatic cutting nippers
CN202963325U (en) * 2012-12-13 2013-06-05 中国船舶重工集团公司第七一〇研究所 Pneumatic pliers using single power ball

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2803649Y (en) * 2005-05-26 2006-08-09 胡鸿鸣 Rotary handle of tool
CN2897513Y (en) * 2006-04-12 2007-05-09 林瑞兴 Powerful impacting cutter
CN200988226Y (en) * 2006-12-01 2007-12-12 林海滨 Hand held hydraulic cutter
CN201008928Y (en) * 2006-12-14 2008-01-23 中国船舶重工集团公司第七一○研究所 Cable cutter
CN201257483Y (en) * 2008-08-20 2009-06-17 石家庄中煤装备制造有限公司 Hydraulic amputator
CN101992443A (en) * 2010-09-15 2011-03-30 苏州卓识商务咨询有限公司 Pneumatic hammer
CN202461371U (en) * 2012-03-01 2012-10-03 太原市福米嘉精密机械有限公司 Steel bar cutter
CN202963601U (en) * 2012-12-13 2013-06-05 中国船舶重工集团公司第七一〇研究所 Large aperture pneumatic cutting nippers
CN202963325U (en) * 2012-12-13 2013-06-05 中国船舶重工集团公司第七一〇研究所 Pneumatic pliers using single power ball

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103552041A (en) * 2013-11-01 2014-02-05 王映辉 Energy-storage catapult impact hammer

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