CN217745396U - Electric assault tool - Google Patents

Abstract

The application discloses electronic assault instrument includes: the handle assembly, the plunger mechanism, the driving assembly and the forceps body assembly are connected in sequence; the handle assembly comprises an oil storage bin, and the oil storage bin is communicated with the plunger mechanism and an oil circuit in the driving assembly. According to the hydraulic shock tool, the traditional oil storage space is arranged in the oil storage bin inside the handle, so that the external space of the shock tool is reduced, and meanwhile, the mechanical mounting structure is utilized, so that the hydraulic oil can be conveniently checked and supplemented in time; this application is connected through compound plunger pump and change-over valve oil circuit, closes three kinds of subassemblies of the high-pressure pump body, the low pressure pump body, change-over valve installation as an organic whole, has not only saved the space, has still avoided the fault rate and has leaked the hidden danger in the pressure, and the blade holder is furnished with multiunit tool head simultaneously, and the function is diversified, adaptable complicated rescue environment.

Description

Electric assault tool

Technical Field

The application belongs to the technical field of rescue instruments, and particularly relates to an electric assault tool.

Background

The electric hydraulic shearing and expanding pliers in the prior art are generally composed of an electric hydraulic pump and a hydraulic shearing and expanding device, can be used for shearing or expanding, can be used for prying a door, supporting or moving a heavy object, separating a metal or nonmetal structure and the like when a fire disaster, a traffic accident or an earthquake disaster occurs, can be used for shearing structures such as a steel bar guardrail, a door frame, a cable, an automobile frame and the like by virtue of the shearing and clamping functions, can rapidly rescue victims trapped in a limited environment or rescue victims in a dangerous environment, and is a necessary breaking tool for fire fighting, police teams, industrial and mining enterprises and other rescue departments.

Since there is usually no ac power source and oil pump at the disaster site, portable hydraulic scissors having batteries and oil storage space must be used. The hydraulic device of the portable hydraulic shearing and expanding pliers is formed by integrating a plunger pump, a hydraulic control valve and an oil cylinder, and the structure is very compact. At present, three subassemblies, namely a high-pressure pump body, a low-pressure pump body and a change-over valve, which are domestic products, are respectively installed, so that not only is space wasted, but also the hidden danger of leakage in great pressure is increased, and an external oil tank is required, so that the carrying difficulty is increased.

SUMMERY OF THE UTILITY MODEL

The application provides an electronic assault instrument to the high-low pressure pump body and the oil storage storehouse of solving traditional electronic assault instrument set up alone, the technical problem that extravagant installation space leads to.

In order to solve the technical problem, the application adopts a technical scheme that: an electric assault tool, comprising: the handle assembly, the plunger mechanism, the driving assembly and the forceps body assembly are connected in sequence;

the handle assembly comprises an oil storage bin, and the oil storage bin is communicated with the plunger mechanism and an oil circuit in the driving assembly.

Furthermore, the plunger mechanism comprises a hollow second connecting seat, a composite plunger pump located inside the second connecting seat, a first oil inlet channel, a first oil outlet channel, a second oil inlet channel and a second oil outlet channel.

The two ends of the first oil inlet oil path and the first oil outlet oil path are respectively communicated with the oil storage bin and the driving assembly, and the two ends of the second oil inlet oil path and the second oil outlet oil path are respectively communicated with the oil storage bin and the composite plunger pump.

Furthermore, at least one hole plugging part is arranged on the first oil inlet oil path and/or the first oil outlet oil path and/or the second oil inlet oil path and/or the second oil outlet oil path, the hole plugging part is not communicated with the corresponding oil path, and the corresponding oil path is fixedly connected with the second connecting seat by the hole plugging part.

Further, the handle assembly further comprises a reversing valve and a first connecting seat; the first connecting seat is fixedly connected with the second connecting seat; the oil storage bin and the reversing valve are arranged inside the first connecting seat, and the oil storage bin is communicated with the plunger mechanism through the reversing valve.

Furthermore, one end of the second connecting seat is provided with an oil hole seat fixedly connected with the first connecting seat, the other end of the second connecting seat is provided with an inner groove, and an eccentric shaft connected with the composite plunger pump is arranged in the first connecting seat;

wherein, a fifth oil hole and a sixth oil hole are arranged at the side end of the inner groove; the oil hole seat is provided with a first oil hole, a second oil hole, a third oil hole and a fourth oil hole which are communicated with the reversing valve;

the first oil hole is communicated with the fifth oil hole through the first oil inlet oil path, the sixth oil hole is communicated with the second oil hole through the first oil inlet oil path, the third oil hole is communicated with the composite plunger pump through the second oil inlet oil path, and the fourth oil hole is communicated with the oil return portion of the composite plunger pump through the second oil outlet oil path.

Furthermore, the driving assembly comprises an oil cylinder fixedly connected with the second connecting seat, a driving motor positioned in the oil cylinder, a central oil pipe sleeved with the clamp body assembly, a third oil inlet oil way and a third oil inlet oil way;

the oil cylinder is internally provided with a middle plate, the driving motor is arranged in the oil cylinder and is positioned on one side of the middle plate, and the other side of the middle plate is fixedly connected with the central oil pipe; and a searchlight is also arranged on the outer side of the oil cylinder.

Furthermore, a seventh oil hole and an eighth oil hole are formed in the rear end of the oil cylinder; the seventh oil hole and the eighth oil hole correspond to the fifth oil hole and the sixth oil hole respectively and are communicated through an intermediate pipe;

the seventh oil hole is communicated with the front side and the rear side of the middle plate through the third oil inlet passage, and the eighth oil hole is communicated with the central oil pipe through the third oil inlet passage.

Furthermore, the clamp body assembly comprises a third connecting seat, an adjustable handle, a cutter holder and a piston sleeved on the central oil pipe; a protective shell is arranged outside the third connecting seat, and a piston connecting seat of the piston is pivoted with a bottom hole of the cutter holder;

the third connecting seat comprises a third base fixedly connected with the oil cylinder and two third extending parts extending from the third base in a non-parallel manner; the adjustable handle is sleeved on the outer side wall of the third base; and the shaft hole at the front end of the third extending part is pivoted with the center hole of the tool apron through a connecting shaft.

Further, a detachable tool head is sleeved on the surface of the tool apron, and a first connecting hole and a positioning bolt are arranged on the detachable tool head; the detachable tool head is fixedly connected to the surface of the tool apron through the positioning bolt;

the tool apron is provided with a second connecting hole corresponding to the first connecting hole, and the positioning bolt penetrates through the first connecting hole and the second connecting hole.

Further, the axes of the reversing valve, the eccentric shaft, the driving motor and the oil cylinder are positioned on the same horizontal line.

The beneficial effect of this application is: this application leads to traditional oil storage space and sets up to the inside oil storage storehouse of handle, has reduced the external space of assault instrument, utilizes mechanical type mounting structure simultaneously, is convenient for in time inspect and replenish hydraulic oil.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a schematic structural view of an embodiment of an electric assault tool of the present application;

FIG. 2 is a schematic view of the structure of the handle member of FIG. 1;

FIG. 3 is a front structural schematic view of the plunger mechanism of FIG. 1;

FIG. 4 is a cross-sectional structural schematic view of the plunger mechanism of FIG. 3;

FIG. 5 is a schematic cross-sectional top view of the first oil inlet passage and the first oil outlet passage of FIG. 3;

fig. 6 is a schematic elevation sectional structure view of the first oil inlet passage and the first oil outlet passage in fig. 3;

FIG. 7 is a schematic diagram of the construction of the compound plunger pump of FIG. 3;

FIG. 8 is a schematic diagram showing a cross-sectional configuration of the oil circuit of the drive assembly and the plunger mechanism of FIG. 1;

fig. 9 is a schematic cross-sectional view of the third oil-intake passage in fig. 8;

fig. 10 is a schematic cross-sectional view of the third oil outlet passage in fig. 8;

FIG. 11 is a schematic diagram of a front view of the cylinder of FIG. 8;

FIG. 12 is a schematic cross-sectional view of the region A in FIG. 11;

FIG. 13 is a schematic structural view of the jaw assembly of FIG. 1;

FIG. 14 is a cross-sectional structural view of the jaw assembly of FIG. 13;

FIG. 15 is a schematic structural view of the piston of FIG. 13;

FIG. 16 is a schematic view of the insert seat of FIG. 13;

fig. 17 is a cross-sectional view of the removable tool head of fig. 13.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all 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 application.

As shown in fig. 1, fig. 1 is a schematic structural diagram of an embodiment of the electric assault tool of the present application, and includes a handle assembly 1, a plunger mechanism 2, a driving assembly 3, and a forceps body assembly 4, which are connected in sequence; wherein, handle component 1 includes oil storage storehouse 11, oil storage storehouse 11 and plunger mechanism 2 and the inside oil circuit UNICOM of drive assembly 3.

This application is through setting up the inside oil storage storehouse 11 of handle again, through inside oil circuit direct intercommunication compound plunger pump 23 and hydro-cylinder 31, realize having the inside UNICOM of way, save extra oil storage space.

FIG. 2 is a schematic view of the handle assembly of the present application, as shown in FIG. 2; the handle assembly 1 comprises an oil storage bin 11, a reversing valve 13 and a first connecting seat 14; a handle shell 12 is arranged on the outer side of the oil storage bin 11, the handle shell 12 and a first connecting seat 14 are integrally formed, and the first connecting seat 14 is fixedly connected with a second connecting seat 21 of the plunger mechanism 2; the oil storage bin 11 and the reversing valve 13 are arranged in the second connecting seat 21, and the oil storage bin 11 is communicated with the plunger mechanism 2 through the reversing valve 13. The design can lead the oil storage bin 11 to be arranged in the handle shell 12, the handle space is fully used, the extra oil storage space is reduced, and meanwhile, the oil storage bin 11 can realize the inlet and outlet of the internal hydraulic oil through the reversing valve 13.

As shown in fig. 3-6, fig. 3 is a schematic front view of the second connecting seat of the present application;

fig. 4 is a schematic cross-sectional view of a second connecting seat of the present application; FIG. 5 is a schematic top cross-sectional view of a first oil inlet passage and a first oil outlet passage of the present application; FIG. 6 is a schematic side view cross-sectional configuration of a first oil inlet passage and a first oil outlet passage in the present application; the plunger mechanism comprises a hollow second connecting seat 21, a compound plunger pump 23 positioned inside the second connecting seat, a first oil inlet oil path 215, a first oil outlet oil path 216, a second oil inlet oil path 217 and a second oil outlet oil path 218; wherein, the outer side of the second connecting seat 21 is provided with a casing 22, two ends of the first oil inlet path 215 and the first oil outlet path 216 are respectively communicated with the oil storage bin 11 and the driving assembly 3, and two ends of the second oil inlet path 217 and the second oil outlet path 218 are respectively communicated with the oil storage bin 11 and the compound plunger pump 23. The hydraulic oil storage device has the beneficial effects that the oil storage bin 11, the composite plunger pump and the oil cylinder 31 are communicated through the first oil inlet oil way 215, the first oil outlet oil way 216, the second oil inlet oil way 217 and the second oil outlet oil way 218 inside the second connecting seat 21, so that the internal hydraulic oil can be conveniently output and returned.

Preferably, at least one hole blocking part 6 is arranged on the first oil inlet path 215 and/or the first oil outlet path 216 and/or the second oil inlet path 217 and/or the second oil outlet path 218, the hole blocking part 6 is not communicated with the corresponding oil path, and the hole blocking part 6 fixedly connects the corresponding oil path with the second connecting seat 21; the plugging part 6 is mainly used for plugging oil holes communicated with the outside in the manufacturing process of all oil paths, so that hydraulic oil is prevented from leaking, and therefore the hydraulic oil only passes through the internal oil paths.

One end of the second connecting seat 21 is provided with an oil hole seat 24 fixedly connected with the first connecting seat 14, the other end of the second connecting seat 21 is provided with an inner groove 25, and an eccentric shaft 26 connected with the composite plunger pump 23 is arranged in the first connecting seat 14; wherein, a fifth oil hole 241 and a sixth oil hole 242 are provided at the side end of the inner groove 25; the oil hole seat 24 is provided with a first oil hole 211, a second oil hole 212, a third oil hole 213 and a fourth oil hole 214 communicated with the reversing valve 13; this design can connect the hydraulic oil in the oil sump 11 to the first, second, third and fourth oil holes 211, 212, 213 and 214 through the direction change valve 13 to flow into the internal oil path of the second joint socket 21.

The first oil hole 211 and the fifth oil hole 241 are communicated through a first oil inlet passage 215, the sixth oil hole 242 and the second oil hole 212 are communicated through a first oil outlet passage 216, the third oil hole 213 and the compound plunger pump 23 are communicated through a second oil inlet passage 217, and the fourth oil hole 214 and the oil return portion of the compound plunger pump 23 are communicated through a second oil outlet passage 218. This arrangement can output the hydraulic oil to the first oil-in oil path 215 through the first oil hole 211 and then into the interior of the oil cylinder 31, and the first oil-out oil path 216 can send the hydraulic oil returned from the oil cylinder 31 back to the oil sump 11 through the second oil hole 212. Similarly, the hydraulic oil is output to the second oil inlet path 217 through the third oil hole 213 and then enters the interior of the compound plunger pump 23, and the second oil outlet path 218 can return the hydraulic oil returned by the compound plunger pump 23 to the oil storage bin 11 through the fourth oil hole 214, so as to complete the circulation of the hydraulic oil.

As shown in fig. 7, fig. 7 is a schematic structural diagram of the dual plunger pump in the present application, in this embodiment, the dual plunger pump 23 includes a first plunger pump 231, a second plunger pump 232, a first flow passage, a second flow passage (not shown), a first valve body 233 and a second valve body 234, wherein the first flow passage and the first valve body 233 are communicated with the second oil inlet passage 217 for inputting hydraulic oil into the dual plunger pump 23 through the direction switching valve 13; the second flow passage and the second valve body 234 communicate with the second oil outlet passage 218 for outputting hydraulic oil to the selector valve 13. The first plunger pump 231 and the second plunger pump 232 are connected to and communicate with the boss 321 of the eccentric shaft 26 for regulating the output oil pressure of the compound plunger pump 23. The oil pressure of the hydraulic oil is output to the first oil inlet passage 215 or the first oil outlet passage 216 through the reversing valve 13, and the oil pressure of the whole oil passage is controlled. The dual plunger pump 23 realizes that the first plunger pump 231, the second plunger pump 232, the first valve body 233 and the second valve body 234 are integrated into a small module, thereby greatly saving the installation space, avoiding oil leakage and pressure internal leakage, and preventing the power source from being too bulky and having excessive hidden troubles.

As shown in fig. 8, fig. 8 is a schematic structural diagram illustrating a cross section of an oil path of the drive assembly and the plunger mechanism in the present application; the driving assembly 3 comprises an oil cylinder 31 fixedly connected with the second connecting seat 21, a driving motor 32 positioned in the oil cylinder 31, a central oil pipe 33 sleeved with the caliper body assembly 4, a third oil inlet oil path 313 and a third oil outlet oil path 314; wherein, the cylinder 31 is provided with a middle plate 34, the driving motor 32 is arranged in the cylinder 31 and is positioned at one side of the middle plate 34, and the other side of the middle plate 34 is fixedly connected with a central oil pipe 33. The middle plate 34 can divide the oil cylinder 31 into two parts, the central oil pipe 33 connected to the front end of the middle plate 34 is connected to the first oil inlet oil passage 215 through the third oil inlet oil passage 313 so as to be connected to the oil storage bin 11, thereby facilitating the output of pressure of the hydraulic oil to the central oil pipe 33, and the rear end of the middle plate 34 is mainly provided with the driving motor 32 for providing power for the flow of the hydraulic oil in the oil cylinder 31.

Preferably, a searchlight 36 is further provided outside the cylinder 31 for the tool of the present application to provide illumination during rescue.

As shown in fig. 9 to 12, fig. 9 is a schematic cross-sectional structure view of a third oil inlet passage in the present application; fig. 10 is a schematic cross-sectional view of a third oil outlet passage in the present application; FIG. 11 is a schematic view of a front view of the oil cylinder of the present application; FIG. 12 is a schematic cross-sectional view of a middle plate area A of the present application; the rear end of the oil cylinder 31 is provided with a seventh oil hole 311 and an eighth oil hole 312; the seventh oil hole 311 and the eighth oil hole 312 correspond to the fifth oil hole 241 and the sixth oil hole 242, respectively, and are communicated through the intermediate pipe 35; the seventh oil hole 311 communicates with the front and rear sides of the intermediate plate 34 via a third oil inlet passage 313, and the eighth oil hole 312 communicates with the center oil pipe 33 via a third oil outlet passage 314. This arrangement allows the first oil inlet passage 215 and the corresponding third oil inlet passage 313 to be communicated through the intermediate pipe 35 when the drive unit and the plunger mechanism are connected, for the hydraulic oil to flow from the first oil inlet passage 215 into the third oil inlet passage 313. Meanwhile, the first oil outlet passage 216 and the corresponding third oil outlet passage 314 are also communicated through the intermediate pipe 35, and the returned hydraulic oil flows into the first oil outlet passage 216 from the third oil outlet passage 314.

Optionally, in this embodiment, at least one hole blocking portion 6 is disposed on the third oil inlet path 313 and/or the third oil outlet path 314, the hole blocking portion 6 is not communicated with the corresponding oil path, and the corresponding oil path is fixedly connected to the oil cylinder 31 by the hole blocking portion, so as to block the connecting hole between the oil path and the outer side of the oil cylinder 31, and prevent hydraulic oil from leaking.

As can be seen from the cross section of the area a, the third oil inlet path 313 and the third oil outlet path 314 in the middle plate 34 are not on the same plane and at the same height, and the third oil inlet path 313 is mainly connected to the central oil pipe 33, and the third oil outlet path 314 passes through the front and the rear of the middle plate 34, so that the third oil inlet path 313 and the third oil outlet path 314 need to be staggered to prevent the two paths from affecting each other.

As shown in fig. 13-16, fig. 13 is a schematic structural view of the caliper body assembly of the present application; FIG. 14 is a cross-sectional view of the jaw assembly of the present application; FIG. 15 is a schematic view of the piston of the present application; FIG. 16 is a schematic view of a tool holder of the present application; the caliper body assembly 4 comprises a third connecting seat 41, an adjustable handle 42, a tool apron 43 and a piston 44 sleeved on the central oil pipe 33; a protective shell 45 is arranged outside the third connecting seat 41, and a piston connecting seat 441 of the piston 44 is pivoted with a bottom hole 431 of the tool apron 43; the third connecting seat 41 includes a third base 411 fixedly connected to the oil cylinder 31 and two third extending portions 412 extending from the third base 411 in a non-parallel manner; the outer side wall of the third base 411 is sleeved with an adjustable handle 42; the shaft hole 413 at the front end of the third extension part 412 is pivotally connected to the central hole 432 of the tool holder 43 via the connecting shaft 46. The open and close of the tool holder 43 can be controlled by the forward and backward sliding of the piston 44, so that the open and close operation of the clamp body is realized.

Optionally, a connecting rod at the front end of the piston 44 is connected to a piston connecting seat 441, a through hole (not labeled in the drawing) is arranged in the piston connecting seat 441, the through hole is pivoted with a bottom hole 431 of the tool apron 43 through a rotating shaft, meanwhile, a central hole 432 in the middle of the tool apron 43 on both sides is pivoted with a shaft hole 413 of the third extending portion 412 through a connecting shaft 46, so that the tool apron 43 is pivoted with the front end of the third extending portion 412, and when the piston 44 pushes the piston connecting seat 441 forward, the bottom of the tool apron 43 expands towards both sides, so that a tool edge of the tool apron 43 is closed, and the cutting of the caliper body is completed; when the piston 44 pulls the piston connecting seat 441 backwards, the bottoms of the tool rests 43 on the two sides are closed towards the middle, and the knife edges of the tool rests 43 are opened at the moment, so that the expansion of the pincer body is completed.

FIG. 17 is a cross-sectional view of the removable tool head of the present application, as shown in FIG. 17; the surface of the tool apron 43 is sleeved with a detachable tool head 5, and the detachable tool head 5 is provided with a first connecting hole 51 and a positioning bolt 52; the detachable tool head 5 is fixedly connected to the surface of the tool holder 43 through a positioning bolt 52; the tool holder 43 is provided with a second connecting hole 433 corresponding to the first connecting hole 51, and the positioning bolt 52 is inserted into the first connecting hole 51 and the second connecting hole 433. This design will facilitate quick removal and installation of the removable tool head 5 from the tool holder 43 by quickly removing the positioning bolt 52.

Optionally, the detachable tool head 5 includes at least two tool heads with different functions, and the tool head in one embodiment has a lever function, and the lever tool head is quickly mounted on the tool holders 43 on two sides through the positioning bolt 52, and mainly performs prying operation in the rescue work. In another embodiment, the tool head has a sharp cutting edge, and the positioning bolt 52 can be removed from the crowbar tool head, and then the cutting tool head can be quickly mounted on the tool apron 43 for cutting operation in rescue works.

The axes of the reversing valve 13, the eccentric shaft 26, the driving motor 32 and the oil cylinder 31 are positioned on the same horizontal line, so that the tool head can be operated by directly exerting force through the handle when being used for operation.

The specific working principle is that when the assault tool is used specifically, firstly, according to the actual rescue environment, the expansion or shearing operation is determined, when the high-pressure or low-pressure mode is selected according to the actual object, when the slotting operation is performed by using the low pressure of the caliper body, the compound plunger pump 23 is selected to be in the low-pressure mode, the oil pressure is adjusted, the driving motor 32 is started, at the moment, the hydraulic oil in the oil storage bin 11 flows into the first oil inlet oil way 215, the third oil inlet oil way 313 and the central oil pipe 33 through the reversing valve 13, so that the piston 44 is pushed by the hydraulic oil through lower pressure, and the detachable tool head 5 is expanded and slotted by lower power; when the low pressure of the clamp body is needed to be used for shearing, the hydraulic oil enters the third oil outlet oil path 314, the first oil outlet oil path 216 and the reversing valve 13 in sequence at the moment, then flows into the oil storage bin 11, pulls the piston 44 to move backwards, and accordingly controls the detachable tool head 5 to perform closed shearing operation with low power. Similarly, when needing to carry out great dynamics and cuting or slotting, can select compound plunger pump 23 to high-pressure mode, adjust to high oil pressure, at this moment, hydraulic oil can promote or pull piston 44 with great power to make the dynamics of the extension of detachable tool head 5 and shearing great, be fit for carrying out the operation to some firm objects.

The flow direction can be adjusted through the reversing valve 13 to hydraulic oil in the oil storage bin 11, the oil pressure is adjusted through the composite plunger pump 23, the hydraulic oil is output through the first oil inlet oil way 215 and the third oil inlet oil way 313, the oil flows back through the third oil outlet oil way 314 and the first oil outlet oil way 216, the expansion and the shearing of the tool heads are completed, the composite plunger pump 23 can rescue the environment on site as required to select proper power operation, high-pressure and low-pressure pumps do not need to be independently arranged, external oil storage space is not needed at the same time, the space is saved, hidden troubles of internal leakage of fault rate and pressure are avoided, meanwhile, a tool apron is provided with a plurality of groups of tool heads, the functions are diversified, and the composite plunger pump is adaptable to rescue environment.

The above description is only an example of the present application, and is not intended to limit the scope of the present application, and all equivalent structures or equivalent processes performed by the present application and the contents of the attached drawings, which are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims (10)

1. An electric assault tool, comprising:

the handle assembly, the plunger mechanism, the driving assembly and the forceps body assembly are connected in sequence;

the handle assembly comprises an oil storage bin, and the oil storage bin is communicated with the plunger mechanism and an oil circuit in the driving assembly.

2. The electric assault tool of claim 1, wherein the plunger mechanism comprises a hollow second connecting base, a compound plunger pump located inside the second connecting base, a first oil inlet passage, a first oil outlet passage, a second oil inlet passage, and a second oil outlet passage;

the two ends of the first oil inlet oil path and the first oil outlet oil path are respectively communicated with the oil storage bin and the driving assembly, and the two ends of the second oil inlet oil path and the second oil outlet oil path are respectively communicated with the oil storage bin and the composite plunger pump.

3. The electric impact tool according to claim 2, wherein at least one hole blocking portion is arranged on the first oil inlet path and/or the first oil outlet path and/or the second oil inlet path and/or the second oil outlet path, the hole blocking portion is not communicated with a corresponding oil path, and the hole blocking portion fixedly connects the corresponding oil path with the second connecting seat.

4. An electric assault tool according to claim 3, wherein the handle assembly further comprises: the reversing valve is connected with the first connecting seat; the first connecting seat is fixedly connected with the second connecting seat; the oil storage bin and the reversing valve are arranged inside the first connecting seat, and the oil storage bin is communicated with the plunger mechanism through the reversing valve.

5. An electric impact tool according to claim 4, wherein one end of the second connecting base is provided with an oil hole base fixedly connected with the first connecting base, the other end of the second connecting base is provided with an internal groove, and the first connecting base is internally provided with an eccentric shaft connected with the composite plunger pump;

wherein, a fifth oil hole and a sixth oil hole are arranged at the side end of the inner groove; the oil hole seat is provided with a first oil hole, a second oil hole, a third oil hole and a fourth oil hole which are communicated with the reversing valve;

the first oil hole is communicated with the fifth oil hole through the first oil inlet oil path, the sixth oil hole is communicated with the second oil hole through the first oil outlet oil path, the third oil hole is communicated with the composite plunger pump through the second oil inlet oil path, and the fourth oil hole is communicated with the oil return portion of the composite plunger pump through the second oil outlet oil path.

6. The electric assault tool of claim 5, wherein the driving assembly comprises a cylinder fixedly connected to the second connecting base, a driving motor located in the cylinder, a central oil pipe sleeved with the caliper body assembly, a third oil inlet passage and a third oil inlet passage;

the oil cylinder is internally provided with a middle plate, the driving motor is arranged in the oil cylinder and is positioned on one side of the middle plate, and the other side of the middle plate is fixedly connected with the central oil pipe; and a searchlight is also arranged on the outer side of the oil cylinder.

7. The electric assault tool of claim 6, wherein the rear end of the cylinder is provided with a seventh oil hole and an eighth oil hole; the seventh oil hole and the eighth oil hole correspond to the fifth oil hole and the sixth oil hole respectively and are communicated through an intermediate pipe;

the seventh oil hole is communicated with the front side and the rear side of the middle plate through the third oil inlet passage, and the eighth oil hole is communicated with the central oil pipe through the third oil inlet passage.

8. The electric assault tool of claim 7, wherein the caliper body assembly comprises a third connecting seat, an adjustable handle, a tool holder, and a piston that is received in the center tube; a protective shell is arranged outside the third connecting seat, and a piston connecting seat of the piston is pivoted with a bottom hole of the cutter holder;

the third connecting seat comprises a third base fixedly connected with the oil cylinder and two third extending parts extending from the third base in a non-parallel manner; the adjustable handle is sleeved on the outer side wall of the third base; and the shaft hole at the front end of the third extending part is pivoted with the center hole of the tool apron through a connecting shaft.

9. The electric assault tool of claim 8, wherein a detachable tool head is sleeved on the surface of the tool holder, and the detachable tool head is provided with a first connecting hole and a positioning bolt; the detachable tool head is fixedly connected to the surface of the tool apron through the positioning bolt;

the tool apron is provided with a second connecting hole corresponding to the first connecting hole, and the positioning bolt penetrates through the first connecting hole and the second connecting hole.

10. The electric impact tool of claim 7, wherein the axes of the direction valve, the eccentric shaft, the driving motor, and the cylinder are located on the same horizontal line.

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