CN107363792B - Electric hydraulic breaker with hand-held replaceable working head - Google Patents
Electric hydraulic breaker with hand-held replaceable working head Download PDFInfo
- Publication number
- CN107363792B CN107363792B CN201710547001.1A CN201710547001A CN107363792B CN 107363792 B CN107363792 B CN 107363792B CN 201710547001 A CN201710547001 A CN 201710547001A CN 107363792 B CN107363792 B CN 107363792B
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- oil pump
- oil
- seat
- tool bit
- hole
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B3/00—Devices or single parts for facilitating escape from buildings or the like, e.g. protection shields, protection screens; Portable devices for preventing smoke penetrating into distinct parts of buildings
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B3/00—Devices or single parts for facilitating escape from buildings or the like, e.g. protection shields, protection screens; Portable devices for preventing smoke penetrating into distinct parts of buildings
- A62B3/005—Rescue tools with forcing action
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
- B25D2250/125—Hydraulic tool components
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Shearing Machines (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses an electric hydraulic breaker with a hand-held replaceable working head, which comprises a shell, a flange plate fixedly arranged on the shell, an oil pump cover fixedly arranged on the flange plate, an oil pump fixedly arranged on the oil pump cover and a cutter head fixedly connected with the oil pump, wherein a motor is arranged in the shell, a gear seat is arranged in the flange plate, a gear set is arranged on the gear seat, and the motor is in transmission connection with the gear set; the oil pump cover is internally provided with hydraulic oil, one end, close to the oil pump cover, of the oil pump is circumferentially provided with a group of switch seats, one end, close to the cutter head, of the oil pump is provided with a push rod, and the switch seats are internally provided with oil slide switches in a matching manner; the device has the beneficial effects that the eccentric shaft is driven by the motor, the oil piston is pressed by the eccentric shaft to press the oil piston switch, the oil in the oil pump cover is sucked out and sent into the oil pump, and then the oil pump pushes the push rod to drive the cutter head to work.
Description
Technical Field
The invention relates to the technical field of breaking devices, in particular to an electric hydraulic breaking device with a handheld replaceable working head.
Background
Most of the breaking and disassembling devices are used in the fields of industry, fire protection and the like, are mainly used for carrying out high-pressure quick disassembly on some waste products, are of an integrated structure, have large volume, and are limited in practical application because the cutter heads of the breaking and disassembling devices cannot be replaced due to the integrated design; at present, most of hydraulic breaking and dismantling devices are adopted in the market, the breaking and dismantling capability is strong, but the hydraulic structure is characterized by large volume and large mass, and the hydraulic breaking and dismantling device is extremely laborious in the use process and is limited to a certain extent when working in a narrow area.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the electric hydraulic breaker with small volume and reasonable structure for the handheld replaceable working head.
The technical scheme of the invention is as follows:
the electric hydraulic breaker with the replaceable working head is characterized by comprising a shell, a flange plate fixedly arranged on the shell, an oil pump cover fixedly arranged on the flange plate, an oil pump fixedly arranged on the oil pump cover and a tool bit fixedly connected with the oil pump, wherein a motor is arranged in the shell, a gear seat is arranged in the flange plate, a gear set is arranged on the gear seat, and the motor is in transmission connection with the gear set; the oil pump cover is internally provided with hydraulic oil, the oil pump is provided with a group of switch seats along the circumferential direction at one end close to the oil pump cover, the oil pump is provided with a push rod at one end close to the tool bit, the switch seats are internally provided with oil slide switches in a matched manner, the inner wall of each switch seat is provided with an oil inlet communicated with the oil pump, the top of each switch seat is provided with an oil inlet groove, the central position of the oil pump is provided with an eccentric wheel in a matched manner, the eccentric wheel is connected with the gear seat in a transmission manner, the oil slide switches in the switch seats are sequentially extruded under the action of the eccentric wheel, so that the oil slide switches perform piston movement, the hydraulic oil in the oil pump cover is sucked into the oil inlet holes through the oil inlet grooves to push the push rod for movement, and therefore the tool bit is operated, and the tool bit can be correspondingly replaced according to actual working requirements.
The electric hydraulic breaker with the replaceable working head is characterized in that the tool bit adopts a stamping tool bit, the stamping tool bit comprises a tool bit base, a fixing lug and a pressure head fixing seat, the fixing lug is arranged on the tool bit base, the pressure head fixing seat is arranged on the fixing lug, the fixing lug comprises a first fixing lug and a second fixing lug, and the first fixing lug and the second fixing lug are symmetrically arranged on the tool bit base; one end of pressure head fixing base rotates through the round pin axle with first fixed ear to be connected, and the pressure head fixing base other end can be around first fixed ear free rotation, and can pass through bolt and second fixed ear fixed connection at the during operation, pressure head fixing base intermediate position is equipped with the opening, be equipped with the spout on the inner wall of opening both sides, the spout top is fixed to be set up the pressure head, and the spout bottom cooperation sets up down the pressure head, the through-hole has been seted up in the middle of the tool bit base, the through-hole corresponds with the position of pressure head down, passes the through-hole under the effect of push rod for down the pressure head moves in the spout, carries out the impression work.
The electric hydraulic breaker with the replaceable working head is characterized in that the cutter head adopts a cutter head, the cutter head comprises a cutter head base, a lower blade mounting seat is fixedly arranged on the cutter head base, a lower blade is fixedly arranged at the front end of the lower blade mounting seat, a connecting arm is rotatably connected and arranged at the middle position of the lower blade mounting seat, an upper blade mounting seat is fixedly arranged on the connecting arm, and an upper blade is fixedly arranged on the upper blade mounting seat; the upper blade and the lower blade are respectively arranged on the upper blade mounting seat and the lower blade mounting seat through blade fixing pieces; the cutter head base intermediate position has seted up the through-hole, the through-hole corresponds with last blade mount pad terminal position, passes the through-hole under the effect of push rod for go up blade mount pad and take place relative rotation through the linking arm with lower blade mount pad, thereby cut the work.
The electric hydraulic breaker with the replaceable working head is characterized in that the cutter head adopts a shearing cutter head, the shearing cutter head comprises a base, a support arranged on the base, an upper blade and a lower blade arranged on the support, a threaded mounting hole matched with the base is arranged on the support, a through groove is formed in a position close to the threaded mounting hole, and through holes are formed in the upper end position and the lower end position of the through groove; the cutting machine is characterized in that a fixing hole is formed in the lower blade and corresponds to the position of the through hole in the support, the lower blade is mounted on the fixing support through a bolt, a first through hole and a second through hole are formed in the upper blade, the upper blade is connected with the support in a rotating mode through the first through hole, the top of the push rod is connected with the top of the push rod in a rotating mode through a cylindrical pin, and the upper blade and the lower blade are enabled to rotate relatively under the action of the push rod, so that shearing operation is achieved.
The electric hydraulic breaker with the hand-held replaceable working head is characterized in that the tool bit adopts a detachable structure and can be correspondingly replaced according to actual needs.
The electric hydraulic breaker with the replaceable working head is characterized in that a detachable battery is mounted at the bottom of the shell and is connected with a motor circuit.
The electric hydraulic breaker with the replaceable working head is characterized in that one end of the gear seat is provided with an inner hexagon, one end of the eccentric shaft is provided with an outer hexagon, and the gear seat is in transmission connection with the eccentric shaft through the cooperation of the inner hexagon and the outer hexagon.
The electric hydraulic breaker with the replaceable working head is characterized in that the oil slide switch comprises an oil seal, a spring seat, a first spring, an oil activity assembly and a piston, wherein the spring seat is arranged on the oil seal, the first spring is arranged on the spring seat, the oil activity assembly is arranged on the first spring, the piston is arranged on the oil activity assembly, and a second spring is arranged inside the oil activity assembly.
The electric hydraulic breaker with the replaceable working head is characterized in that a blind hole is formed between two adjacent switch seats on the oil pump, and a small magnet is arranged in the blind hole in a matched mode.
The electric hydraulic breaker with the replaceable working head is characterized in that a pressure release switch is arranged on the oil pump.
The electric hydraulic breaker with the replaceable working head is characterized in that a reset spring for retracting the push rod is sleeved on the push rod.
The device has the beneficial effects that the eccentric shaft is driven by the motor, the eccentric shaft extrudes the oil piston switch, the oil in the oil pump cover is sucked out and sent into the oil pump, and then the oil pump pushes the push rod to drive the cutter head to work; the replaceable tool bit is adopted, so that the universality of the device is improved; the detachable battery is adopted, so that the portability of the device is improved; the return spring is adopted, so that the oil return of the oil pump can be ensured; the pressure release switch is arranged on the oil pump, so that the oil pump can be prevented from being blocked; the small magnet is arranged on the oil pump, so that scrap iron generated by the motion of the eccentric shaft can be adsorbed, and the oil pump is prevented from being blocked.
Drawings
FIG. 1 is an exploded view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the oil pump according to the present invention;
FIG. 3 is a schematic diagram of the oil slide switch according to the present invention;
FIG. 4 is a schematic view of a cutter head according to the present invention;
FIG. 5 is a schematic view of the structure of the embossing tool bit of the invention;
FIG. 6 is a schematic view of the structure of a shear blade according to the present invention;
in the figure, the device comprises a 1-shell, a 2-motor, a 3-gear seat, a 4-flange, a 5-oil pump cover, a 6-eccentric wheel, a 7-oil pump, a 71-oil slide switch, a 72-switch seat, a 73-oil inlet hole, a 74-oil inlet groove, a 75-blind hole, a 7101-oil seal, a 7102-spring seat, a 7103-first spring, a 7104-oil movable component, a 7105-second spring, a 7106-piston, an 8-push rod, a 9-cutter head, a 91-cutter head base, a 92-first fixed lug, a 93-cutter head fixed seat, a 94-handle, a 95-upper cutter head, a 96-lower cutter head, a 97-second fixed lug, a 901-cutter head base, a 902-connecting arm, a 903-upper cutter blade mounting seat, 904-cutter blade fixing piece, 905-upper cutter blade, 906-lower cutter blade, 907-lower cutter blade mounting, 9001-base, a 9002-support, 9003-sheath, 9004-upper cutter blade, 9005-lower cutter blade, a 10-reset spring, a 11-gear set, a 12-detachable type battery and 13-pressure release switch.
Detailed Description
The invention is further described below with reference to the drawings.
As shown in fig. 1 to 6, an electric hydraulic breaker with a replaceable working head in a hand manner comprises a housing 1, a motor 2, a gear seat 3, a flange 4, an oil pump cover 5, an eccentric 6, an oil pump 7, an oil slide switch 71, a switch seat 72, an oil inlet hole 73, an oil inlet groove 74, a blind hole 75, an oil seal 7101, a spring seat 7102, a first spring 7103, an oil moving component 7104, a second spring 7105, a piston 7106, a push rod 8, a tool bit 9, a tool bit base 91, a first fixing lug 92, a tool bit fixing seat 93, a handle 94, an upper pressing head 95, a lower pressing head 96, a second fixing lug 97, a tool bit base 901, a connecting arm 902, an upper blade mounting seat 903, a blade fixing 904, an upper blade 905, a lower blade 906, a lower blade mounting 907, a base 9001, a support 9002, a sheath 9003, an upper blade 9004, a lower blade 9005, a reset spring 10, a gear set 11, a detachable battery 12, and a pressure release switch 13. The ring flange 4 is fixed to be set up on shell 1, and oil pump lid 5 and ring flange 4 fixed connection, oil pump 7 are fixed on oil pump lid 5, and tool bit 9 and oil pump 7 pass through bolt fixed connection, and tool bit 9 is detachable, can carry out corresponding change as required. The motor 2 is arranged in the shell 1, the detachable battery 12 is arranged at the bottom of the shell 1, and the detachable battery 12 is in circuit connection with the motor 2; the flange 4 is internally provided with a gear seat 3, the gear seat 3 is provided with a gear set 11, and the motor 2 is in transmission connection with the gear set 11; the oil pump cover 5 is internally filled with hydraulic oil, one end, close to the oil pump cover 5, of the oil pump 7 is provided with a group of switch seats 72 along the circumferential direction, one end, close to the cutter head, of the oil pump 7 is provided with a push rod 8, the switch seats 72 are internally matched with an oil slide switch 71, the oil slide switch 71 comprises an oil seal 7101, a spring seat 7102, a first spring 7103, an oil activity assembly 7104 and a piston 7106, the spring seat 7102 is installed on the oil seal 7101, the first spring 7103 is arranged on the spring seat 7102, the oil activity assembly 7101 is arranged on the first spring 7103, the piston 7106 is arranged on the oil activity assembly 7104, and a second spring 7105 is arranged inside the oil activity assembly 7104; an oil inlet hole 73 communicated with the oil pump 7 is formed in the inner wall of the switch seat 72, an oil inlet groove 74 is formed in the top of the switch seat 72, an eccentric wheel 6 is cooperatively arranged at the central position of the oil pump 7, an outer hexagon is arranged at one end of the eccentric shaft 6, an inner hexagon is arranged at one end of the gear seat 3, the gear seat 3 is in transmission connection with the eccentric shaft 6 through the cooperation of the inner hexagon and the outer hexagon, the oil slide switch 71 in the switch seat 72 is sequentially extruded under the action of the eccentric wheel 6, so that the oil slide switch 71 performs piston movement, hydraulic oil in the oil pump cover 5 is sucked into the oil inlet hole 73 through the oil inlet groove 74 to push a push rod 8 to move, the work of a cutter head 9 is realized, a reset spring 10 is sleeved on the push rod 8, and the reset spring 10 can enable the push rod 8 to automatically reset when the work is finished and plays a role of automatic oil return; a blind hole 75 is formed between two adjacent switch seats on the oil pump 7, a small magnet is arranged in the blind hole 75 in a matched manner, and the small magnet can absorb iron cutting generated in the process that the eccentric wheel 6 rotates to squeeze the switch seats 72, so that the oil inlet groove 74 and the oil inlet hole 73 are prevented from being blocked; the oil pump 7 is also provided with a pressure relief switch 13 for preventing the oil pump 7 from being blocked.
The working process comprises the following steps:
firstly, the motor 2 works to drive the gear set 11 to rotate, the gear set 11 rotates to drive the gear seat 3 to rotate, so as to drive the eccentric shaft 6 to rotate, and the eccentric shaft 6 rotates to radially squeeze the oil slide switch 71 in the switch seat 72 in sequence, so that hydraulic oil in the oil pump cover 5 flows into the oil inlet hole 73 from the oil inlet groove 74 to enter the oil pump 7, hydraulic oil in the oil pump 7 pushes the push rod 8 to move forwards, and the push rod 8 pushes the cutter head 9, so that the cutting operation of the cutter head 9 is realized.
Example 1
The tool bit 9 adopts a stamping tool bit, the stamping tool bit comprises a tool bit base 91, a fixing lug and a pressure head fixing seat 93, the fixing lug is arranged on the tool bit base 91, the fixing lug comprises a first fixing lug 92 and a second fixing lug 97, and the first fixing lug 92 and the second fixing lug 97 are symmetrically arranged on the tool bit base 91; one end of the pressure head fixing seat 93 is rotationally connected with the first fixing lug 92 through a pin shaft, the other end of the pressure head fixing seat 93 can freely rotate around the first fixing lug 92 and can be fixedly connected with the second fixing lug 97 through bolts during operation, an opening is formed in the middle of the pressure head fixing seat 93, sliding grooves are formed in the inner walls of two sides of the opening, an upper pressure head 95 is fixedly arranged at the top of each sliding groove, a lower pressure head 96 is matched with the bottom of each sliding groove, a through hole is formed in the middle of the tool head base 91, the through hole corresponds to the position of the lower pressure head 96, the lower pressure head 96 moves upwards in the corresponding sliding groove under the action of the push rod 8 through the through hole, and stamping operation is performed.
Example 2
The cutter head 9 adopts a cutter head, the cutter head comprises a cutter head base 901, a lower blade mounting seat 907 is fixedly arranged on the cutter head base 901, a lower blade 906 is fixedly arranged at the front end of the lower blade mounting seat 907, a connecting arm 902 is rotatably connected and arranged at the middle position of the lower blade mounting seat 907, an upper blade mounting seat 903 is fixedly arranged on the connecting arm 902, and an upper blade 905 is fixedly arranged on the upper blade mounting seat 903; the upper blade 905 and the lower blade 906 are mounted on the upper blade mount 903 and the lower blade mount 907 by the blade mount 904, respectively; a through hole is formed in the middle of the tool bit base 901, the through hole corresponds to the tail end of the upper blade mounting seat 903, and the upper blade mounting seat 903 rotates relative to the lower blade mounting seat 907 through the connecting arm 902 under the action of the push rod 8 after passing through the through hole, so that cutting work is performed.
Example 3
The cutter head 9 adopts a shearing cutter head, the shearing cutter head comprises a base 9001, a support 9002 arranged on the base 9001, a sheath 9003 arranged at the top of the support 9002, an upper blade 9004 and a lower blade 9005 arranged on the support 9002, a threaded mounting hole matched with the base 9001 is formed in the support 9002, a through groove is formed in a position close to the threaded mounting hole, and through holes are formed in the upper end position and the lower end position of the through groove; the lower blade 9005 is provided with a fixing hole, the fixing hole corresponds to the through hole in the support 9002 in position, the lower blade 9005 is mounted on the fixing support 9002 through a bolt, the upper blade 9004 is provided with a first through hole and a second through hole, the upper blade 9004 is rotationally connected with the support 9002 through the first through hole, the top of the push rod 8 is rotationally connected with the push rod 8 through a cylindrical pin, and the upper blade 9004 and the lower blade 9005 are relatively rotated under the action of the push rod 8, so that shearing operation is realized.
According to the hydraulic breaking and tearing device, stamping, cutting, shearing and other working operations are realized by replacing different tool bits 9, so that the device has better universal performance, multiple works can be performed by replacing the tool bits 9 on the premise of not following the replacement device, and the functions are powerful; and is equipped with a detachable battery 12, so that the device works more flexibly and conveniently.
Claims (10)
1. The utility model provides a portable removable work head's electronic hydraulic pressure breaks tear ware open which characterized in that, including shell (1), fixed ring flange (4) that set up on shell (1), fixed oil pump cover (5) that set up on ring flange (4), fixed oil pump (7) on oil pump cover (5) and with oil pump (7) fixed connection's tool bit (9), the inside motor (2) that is equipped with of shell (1), the inside gear seat (3) that is equipped with of ring flange (4), be equipped with gear train (11) on gear seat (3), motor (2) are connected with gear train (11) transmission; the utility model discloses a hydraulic oil pump, including oil pump cover (5), oil pump (7) are equipped with a set of switch seat (72) along circumference in the one end that is close to oil pump cover (5), oil pump (7) are equipped with push rod (8) in the one end that is close to the tool bit, switch seat (72) fit is provided with oil slide switch (71), has seted up inlet port (73) with oil pump (7) intercommunication on switch seat (72) inner wall, oil inlet groove (74) have been seted up at switch seat (72) top, oil pump (7) central point put cooperation and has been set up eccentric wheel (6), eccentric wheel (6) are connected with gear seat (3) transmission, and extrude oil slide switch (71) in switch seat (72) in proper order under the effect of eccentric wheel (6), make oil slide switch (71) carry out the piston motion, inhale inlet port (73) with oil pump cover (5) in, promote the motion of push rod (8) to realize the work of tool bit (9), tool bit (9) can be changed according to actual working needs.
2. The electric hydraulic breaker with the replaceable working head according to claim 1, wherein the tool bit (9) is a stamping tool bit, the stamping tool bit comprises a tool bit base (91), a fixing lug arranged on the tool bit base (91) and a pressure head fixing seat (93) arranged on the fixing lug, the fixing lug comprises a first fixing lug (92) and a second fixing lug (97), and the first fixing lug (92) and the second fixing lug (97) are symmetrically arranged on the tool bit base (91); one end of pressure head fixing base (93) rotates through the round pin axle with first fixed ear (92) to be connected, and pressure head fixing base (93) other end can be around first fixed ear (92) free rotation, and can pass through bolt and second fixed ear (97) fixed connection at the during operation, pressure head fixing base (93) intermediate position is equipped with the opening, be equipped with the spout on the inner wall of opening both sides, spout top is fixed to be set up pressure head (95), and spout bottom cooperation sets up down pressure head (96), the through-hole has been seted up in the middle of tool bit base (91), the through-hole corresponds with the position of pressure head (96) down, passes the through-hole under the effect of push rod (8) for pressure head (96) down moves in the spout, carries out the impression work.
3. The electric hydraulic breaker with the replaceable working head of claim 1, wherein the cutter head (9) is a cutter head, the cutter head comprises a cutter head base (901), a lower blade mounting seat (907) is fixedly arranged on the cutter head base (901), a lower blade (906) is fixedly arranged at the front end of the lower blade mounting seat (907), a connecting arm (902) is rotatably connected and arranged at the middle position of the lower blade mounting seat (907), an upper blade mounting seat (903) is fixedly arranged on the connecting arm (902), and an upper blade (905) is fixedly arranged on the upper blade mounting seat (903); the upper blade (905) and the lower blade (906) are respectively arranged on the upper blade mounting seat (903) and the lower blade mounting seat (907) through the blade fixing piece (904); the middle position of the tool bit base (901) is provided with a through hole, the through hole corresponds to the tail end position of the upper blade mounting seat (903), and the upper blade mounting seat (903) and the lower blade mounting seat (907) relatively rotate through the connecting arm (902) under the action of the push rod (8) after penetrating through the through hole, so that cutting work is performed.
4. The electric hydraulic breaker with the replaceable working head according to claim 1, wherein the tool bit (9) is a shearing tool bit, the shearing tool bit comprises a base (9001), a support (9002) arranged on the base (9001), a sheath (9003) arranged at the top of the support (9002), an upper blade (9004) and a lower blade (9005) arranged on the support (9002), a threaded mounting hole matched with the base (9001) is formed in the support (9002), through grooves are formed in positions close to the threaded mounting hole, and through holes are formed in the positions of the upper end and the lower end of the through grooves; be equipped with the fixed orifices on lower blade (9005), and this fixed orifices with through-hole position on support (9002) is corresponding to install lower blade (9005) on fixed support (9002) through the bolt, be equipped with first through-hole and second through-hole on last blade (9004), go up blade (9004) and rotate on through-hole and support (9002) and be connected, rotate through cylindric lock through second through-hole and push rod (8) top, and make to go up blade (9004) and lower blade (9005) take place relative rotation under the effect of push rod (8), thereby realize shearing operation.
5. The electric hydraulic breaker of the hand-held replaceable working head according to claim 1, wherein a detachable battery (12) is mounted at the bottom of the housing (1), and the detachable battery (12) is in circuit connection with the motor (2).
6. The electric hydraulic breaker with the replaceable working head being hand-held according to claim 1, wherein one end of the gear seat (3) is provided with an inner hexagon, one end of the eccentric wheel (6) is provided with an outer hexagon, and the gear seat (3) is in transmission connection with the eccentric wheel (6) through the cooperation of the inner hexagon and the outer hexagon.
7. The electric hydraulic breaker with the replaceable working head being hand-held according to claim 1, wherein the oil slide switch (71) comprises an oil seal (7101), a spring seat (7102), a first spring (7103), an oil piston assembly (7104) and a piston (7106), the spring seat (7102) is installed on the oil seal (7101), the first spring (7103) is arranged on the spring seat (7102), the oil piston assembly (7104) is arranged on the first spring (7103), the piston (7106) is arranged on the oil piston assembly (7104), and a second spring (7105) is arranged inside the oil piston assembly (7104).
8. The electric hydraulic breaker with the replaceable working head being hand-held according to claim 1, wherein a blind hole (75) is formed between two adjacent switch seats on the oil pump (7), and a small magnet is arranged in the blind hole (75) in a matched mode.
9. The electric hydraulic breaker with the replaceable working head being hand-held according to claim 1, wherein the oil pump (7) is provided with a pressure relief switch (13).
10. The electric hydraulic breaker with the replaceable working head being hand-held according to claim 1, wherein the push rod (8) is sleeved with a return spring (10) for retracting the push rod (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710547001.1A CN107363792B (en) | 2017-07-06 | 2017-07-06 | Electric hydraulic breaker with hand-held replaceable working head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710547001.1A CN107363792B (en) | 2017-07-06 | 2017-07-06 | Electric hydraulic breaker with hand-held replaceable working head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107363792A CN107363792A (en) | 2017-11-21 |
| CN107363792B true CN107363792B (en) | 2023-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710547001.1A Active CN107363792B (en) | 2017-07-06 | 2017-07-06 | Electric hydraulic breaker with hand-held replaceable working head |
Country Status (1)
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| CN (1) | CN107363792B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107795451A (en) * | 2017-11-29 | 2018-03-13 | 欧盾科技有限公司 | Integrated high pressure oil pump |
| CN113230551B (en) * | 2021-05-17 | 2022-04-15 | 内蒙古皇甲消防应急管理有限公司 | Hand-held type breaking-in tool for fire-fighting emergency rescue |
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| DE10216213A1 (en) * | 2002-04-10 | 2003-10-23 | Klauke Gmbh Gustav | Electro-hydraulic pressing device and method for operating the same |
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| CN107363792A (en) | 2017-11-21 |
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