阅读说明：本技术 动力机构、破拆工具及破拆系统 (Power mechanism, broken instrument of tearing open and broken system of tearing open ) 是由 郭学光 王凯 刘吉哲 陶巨 于 2021-08-23 设计创作，主要内容包括：本申请公开了一种动力机构、破拆工具及破拆系统,该动力机构用于驱动救援工作头工作,所述动力机构包括握持件及驱动件,所述驱动件连接所述救援工作头；所述握持件包括动力传送部,所述动力传送部与所述驱动件相连,所述握持件与所述驱动件枢转连接。本申请提供的动力机构、破拆工具及破拆系统,能够有效地将救援空间最大化,保证破拆工具正常工作。(The application discloses a power mechanism, a forcible entry tool and a forcible entry system, wherein the power mechanism is used for driving a rescue working head to work, the power mechanism comprises a holding piece and a driving piece, and the driving piece is connected with the rescue working head; the holding piece comprises a power transmission part, the power transmission part is connected with the driving piece, and the holding piece is pivotally connected with the driving piece. The application provides a power unit, brokenly tear instrument and brokenly tear system open can guarantee to tear the instrument of tearing open and normally work with rescue space maximize effectively.)

1. A power mechanism is used for driving a rescue working head to work and is characterized by comprising a holding part and a driving part, wherein the driving part is connected with the rescue working head; the holding piece comprises a power transmission part, the power transmission part is connected with the driving piece, and the holding piece is pivotally connected with the driving piece.

2. The power mechanism as claimed in claim 1, wherein the driving member includes a cylinder, the power transmission portion includes an oil supply passage and an oil return passage provided in the holding member, and both the oil supply passage and the oil return passage extend to connect the cylinder.

3. The power mechanism as claimed in claim 2, wherein the oil cylinder comprises an oil inlet, an oil outlet and an inner cavity for containing liquid, and the oil inlet and the oil outlet are both communicated with the inner cavity; the export of fuel feeding passageway with the inlet port is linked together, the entry of oil return passageway with the oil outlet is linked together, just the export of fuel feeding passageway with the junction of inlet port the entry of oil return passageway with the junction of oil outlet all is equipped with the sealing member.

4. The power mechanism as claimed in claim 2, wherein the holding member comprises a connecting portion and a limit switch, the limit switch is rotatably mounted on the connecting portion, the cylinder is pivotally connected to the connecting portion, the cylinder is provided with a locking groove, and the limit switch is rotatably fastened to or separated from the locking groove.

5. The power mechanism as claimed in claim 4, wherein the locking grooves are distributed along the circumference of the cylinder pivot shaft; the connecting part is provided with an arc-shaped through hole surrounding the pivot shaft; the limit switch comprises a first telescopic limit part, the first limit part penetrates through the arc-shaped through hole, and the first limit part is rotationally buckled in the locking groove or separated from the locking groove.

6. The power mechanism as claimed in claim 5, wherein the limit switch further comprises a mounting groove, the first limit portion comprises a spring and a locking pin or a steel ball connected to the spring, the spring is located in the mounting groove or abuts against a plane of the limit switch facing the connecting portion, and the locking pin or the steel ball is rotatably fastened to or separated from the locking groove.

7. The power mechanism as claimed in claim 1, wherein the holding member comprises a connecting portion, the connecting portion is provided with a U-shaped receiving slot, the driving member is pivotally connected to the connecting portion, and one end of the driving member is pivotally connected to the receiving slot.

8. The power mechanism as claimed in claim 7, wherein a rotary joint is pivotally mounted in the receiving slot, the rotary joint is provided with a fixing hole, the driving member and the rotary joint are fixed in the fixing hole, and the driving member is pivotally connected to the connecting portion through the rotary joint.

9. The power mechanism as claimed in claim 4, 7 or 8, wherein the driving member has a first end and a second end opposite to each other, the rescue work head is connected to the first end, the pivotal connection between the driving member and the connecting portion is located between the first end and the second end, and the distance from the pivotal connection to the first end is smaller than the distance from the pivotal connection to the second end.

10. The power mechanism as claimed in claim 7, wherein the connecting portion further comprises a first arm and a second arm disposed opposite to each other, the first arm and the second arm forming the receiving slot therebetween, and the driving member is clamped between and pivotally mounted to the first arm and the second arm.

11. The power mechanism as claimed in claim 10, wherein the first arm and the second arm are provided with weight-reducing holes.

12. The power mechanism as claimed in claim 10, wherein the driving member includes an oil cylinder, the power transmission portion includes an oil supply passage and an oil return passage, the oil supply passage is disposed in the first support arm, the oil return passage is disposed in the second support arm, and both the oil supply passage and the oil return passage extend to connect the oil cylinder.

13. The power mechanism as claimed in claim 12, further comprising a rotary joint, wherein the rotary joint is provided with a fixing hole, the driving member and the rotary joint are fixed in the fixing hole, and the rotary joint is pivotally connected to the first arm and the second arm respectively; the rotary joint is provided with a first through hole, and the oil supply channel and the oil return channel are communicated with the oil cylinder through the first through hole.

14. The power mechanism as claimed in claim 8 or 13, further comprising a limit switch, wherein the limit switch is rotatably mounted on the connecting part, and part of the rotary joint is located between the connecting part and the limit switch; one side of the connecting part, which faces the limit switch, is provided with a locking groove, and the limit switch is rotationally buckled in the locking groove or separated from the locking groove.

15. The power mechanism as claimed in claim 14, wherein the connecting portion is provided with a pivot hole communicating with the receiving groove, the rotary joint is pivotally mounted in the pivot hole, the plurality of locking grooves are distributed along a circumferential direction of the pivot shaft of the connecting portion, the limit switch covers the pivot hole, and the limit switch includes a first telescopic limiting portion, and the first limiting portion is rotatably fastened to the locking groove or separated from the locking groove; and a second through hole for the first limiting part to pass through is formed in the rotary joint.

16. The power mechanism as claimed in claim 15, wherein there are two limit switches, there are two pivot holes, and the two pivot holes are respectively disposed on two opposite groove walls of the receiving groove.

17. The power mechanism as claimed in claim 4 or 7, wherein the connecting portion is provided with a second limiting portion, the driving member is provided with a third limiting portion, and the third limiting portion can be matched with the second limiting portion, so that an included angle formed by the driving member rotating relative to the connecting portion is smaller than or equal to a predetermined value.

18. The power mechanism as claimed in claim 1, wherein the holding member further comprises a holding portion for being held by a human hand, and the outer surface of the holding portion is provided with a raised pattern.

19. The power mechanism of claim 18, wherein the grip further comprises a connector coupled to the power transmitting portion, the connector configured to externally connect to a power supply; the joint is located the one end of handheld portion, the other end of handheld portion is equipped with connecting portion.

20. A break-in tool, comprising:

the power mechanism of claim 1;

and the rescue working head is pivotally connected to the driving piece.

21. A break-in system, comprising: the demolition tool according to claim 20.

Technical Field

The application relates to the technical field of rescue equipment, in particular to a power mechanism, a forcible entry tool and a forcible entry system.

Background

The forcible entry tool is mainly used for fire fighting, traffic police and armed police troops, is used under the conditions of fire, earthquake, traffic accident and assault rescue, and is used for quickly forcible entry and removal of obstacles such as anti-theft window railings, collapsed building steel bars, window railings and the like.

However, when the existing breaking-in tool is used, the handle and the rescue working head are in a straight line, and under the condition of limited rescue space, the existing breaking-in tool is easy to interfere with surrounding obstacles, so that a larger rescue space cannot be obtained, and even the existing breaking-in tool cannot normally work at the rescue position, so that the rescue work is adversely affected.

Disclosure of Invention

The main technical problem who solves of this application provides a power unit, brokenly tears instrument and brokenly tears system open, can guarantee to tear the instrument normally work with rescue space maximize effectively.

In order to solve the technical problem, the application adopts a technical scheme that: the power mechanism is used for driving the rescue working head to work and comprises a holding part and a driving part, wherein the driving part is connected with the rescue working head; the holding piece comprises a power transmission part, the power transmission part is connected with the driving piece, and the holding piece is pivotally connected with the driving piece.

Further, the driving piece includes the hydro-cylinder, power transmission portion is including setting up oil supply channel and oil return channel in the grip, oil supply channel with oil return channel all extends to the connection the hydro-cylinder.

Furthermore, the oil cylinder comprises an oil inlet hole, an oil outlet hole and an inner cavity for containing liquid, and the oil inlet hole and the oil outlet hole are communicated with the inner cavity; the export of fuel feeding passageway with the inlet port is linked together, the entry of oil return passageway with the oil outlet is linked together, just the export of fuel feeding passageway with the junction of inlet port the entry of oil return passageway with the junction of oil outlet all is equipped with the sealing member.

Furthermore, the holding part comprises a connecting part and a limit switch, the limit switch is rotatably installed on the connecting part, the oil cylinder is pivotally connected to the connecting part, a locking groove is formed in the oil cylinder, and the limit switch is rotatably buckled in the locking groove or separated from the locking groove.

Furthermore, the locking grooves comprise a plurality of locking grooves which are distributed along the circumferential direction of the oil cylinder pivot shaft; the connecting part is provided with an arc-shaped through hole surrounding the pivot shaft; the limit switch comprises a first telescopic limit part, the first limit part penetrates through the arc-shaped through hole, and the first limit part is rotationally buckled in the locking groove or separated from the locking groove.

Further, limit switch still is equipped with the mounting groove, first spacing portion include the spring and with spring coupling's card post or steel ball, the spring is located the mounting groove or top support in limit switch faces the plane of connecting portion, card post or steel ball rotationally the buckle in locking groove or break away from locking groove.

Furthermore, the holding piece comprises a connecting part, the connecting part is provided with a U-shaped accommodating groove, the driving part is pivotally connected to the connecting part, and one end of the driving part can be pivoted to accommodate or move out of the accommodating groove.

Further, pivot installation has rotary joint in the holding tank, rotary joint is equipped with the fixed orifices, the driving piece with rotary joint is fixed in the fixed orifices, the driving piece passes through rotary joint pivot connection in connecting portion.

Further, the driving piece is provided with a first end and a second end which are opposite, the rescue work head is connected to the first end, the pivot connection position of the driving piece and the connecting portion is located between the first end and the second end, and the distance from the pivot connection position to the first end is smaller than that from the pivot connection position to the second end.

Further, connecting portion still include relative first support arm and the second support arm that sets up, first support arm with form between the second support arm the holding tank, the driving piece centre gripping is in first support arm with between the second support arm to the pivot install in first support arm with the second support arm.

Furthermore, the first support arm and the second support arm are provided with lightening holes.

Further, the driving piece comprises an oil cylinder, the power transmission part comprises an oil supply channel and an oil return channel, the oil supply channel is arranged in the first support arm, the oil return channel is arranged in the second support arm, and the oil supply channel and the oil return channel extend to and are connected with the oil cylinder.

Furthermore, the power mechanism further comprises a rotary joint, the rotary joint is provided with a fixing hole, the driving piece and the rotary joint are fixed in the fixing hole, and the rotary joint is respectively connected to the first support arm and the second support arm in a pivoting manner; the rotary joint is provided with a first through hole, and the oil supply channel and the oil return channel are communicated with the oil cylinder through the first through hole.

Furthermore, the power mechanism further comprises a limit switch, the limit switch is rotatably mounted on the connecting part, and part of the rotary joint is positioned between the connecting part and the limit switch; one side of the connecting part, which faces the limit switch, is provided with a locking groove, and the limit switch is rotationally buckled in the locking groove or separated from the locking groove.

Furthermore, the connecting part is provided with a pivot hole communicated with the accommodating groove, the rotary joint is pivotally installed in the pivot hole, the plurality of locking grooves are distributed along the circumferential direction of the pivot shaft of the connecting part, the limit switch covers the pivot hole, the limit switch comprises a telescopic first limiting part, and the first limiting part is rotatably buckled in the locking grooves or separated from the locking grooves; and a second through hole for the first limiting part to pass through is formed in the rotary joint.

Furthermore, the number of the limit switches is two, the number of the pivot holes is two, and the two pivot holes are respectively arranged on two opposite groove walls of the accommodating groove.

Furthermore, the connecting part is provided with a second limiting part, the driving part is provided with a third limiting part, and the third limiting part can be matched with the second limiting part to enable the driving part to rotate relative to the connecting part to form an included angle smaller than or equal to a preset value.

Furthermore, the holding piece further comprises a holding part for holding by hands, and the outer surface of the holding part is provided with raised patterns.

Further, the holding piece also comprises a joint connected with the power transmission part, and the joint is used for externally connecting an energy supply part; the joint is located the one end of handheld portion, the other end of handheld portion is equipped with connecting portion.

In order to solve the above technical problem, another technical solution adopted by the present application is: there is provided a break-in tool comprising:

the power mechanism according to any of the above embodiments;

and the rescue working head is pivotally connected to the driving piece.

In order to solve the above technical problem, the present application adopts another technical solution that: there is provided a break-in system comprising: the breaking-open tool as described in the previous embodiments.

Different from the prior art, the beneficial effects of the application are that:

the power unit, brokenly tear instrument and brokenly open system that this application embodiment provided can adjust the contained angle of driving piece and gripping member because the driving piece that is connected with the rescue working head can rotate for the gripping member, can guarantee to tear the instrument of tearing open and normally work with rescue space maximize effectively.

And, because the contained angle of driving piece and gripping member is adjustable, when the broken instrument of tearing open of high-order operation of rescue personnel or the broken instrument of tearing open of low-order operation, can reduce rescue personnel's neck, back and hand burden, improve rescue efficiency. The condition of broken instrument swing of tearing open can appear in the rescue in-process, because the contained angle of driving piece and gripping member is adjustable, can separate the power of broken instrument swing power of tearing open and operate the gripping member, prevent that rescue personnel from being injured at the rescue in-process.

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, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Wherein:

fig. 1 is a schematic structural diagram of a breaking-in tool including a power mechanism according to the present embodiment;

fig. 2 is a schematic structural diagram of a connecting portion provided in the present embodiment;

fig. 3 is a schematic structural diagram of a limit switch provided in the present embodiment;

fig. 4 is a schematic structural diagram of a first position-limiting portion provided in the present embodiment;

fig. 5 is a schematic structural view of a rotary joint provided in the present embodiment;

FIG. 6 is a front view of FIG. 1;

FIG. 7 is a schematic structural view of a second breaking-in tool according to the present embodiment;

FIG. 8 is a schematic structural view of a third breaking-in tool provided in the present embodiment;

fig. 9 is a schematic structural diagram of a fourth breaking-in tool provided in the present embodiment.

Description of reference numerals:

1. a grip; 2. a drive member; 3. a connecting portion; 4. a limit switch; 5. a locking groove; 6. a first limiting part; 7. mounting grooves; 8. a spring; 9. a snap post or steel ball; 10. accommodating grooves; 11. a rotary joint; 12. a fixing hole; 13. a first end; 14. a second end; 15. a first support arm; 16. a second support arm; 17. lightening holes; 18. a pivot hole; 19. a second through hole; 20. a hand-held portion; 21. a joint; 22. a rescue working head; 23. shearing and breaking the working head; 24. shearing, expanding and breaking the working head; 25. expanding and breaking the working head; 26. the supporting top breaks the working head.

Detailed Description

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

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to fig. 1. The embodiment of the application provides a power mechanism for driving the rescue working head 22 to work. The power mechanism comprises a holding piece 1 and a driving piece 2. The driving piece 2 is connected with a rescue working head 22. The grip member 1 includes a power transmission portion (not shown) connected to the driving member 2, and the grip member 1 is pivotally connected to the driving member 2.

The power mechanism provided by the embodiment of the application is used for driving the rescue working head 22 to work. Because the driving part 2 connected with the rescue working head 22 can rotate relative to the holding part 1, the included angle between the driving part 2 and the holding part 1 can be adjusted, the rescue space can be effectively maximized, and the normal work of the breaking-in tool is ensured.

And, because the contained angle of driving piece 2 and gripping member 1 is adjustable, when the broken instrument of tearing open of rescue personnel high-order operation or the broken instrument of tearing open of low-order operation, can reduce rescue personnel's neck, back and hand burden, improve rescue efficiency. The condition of broken instrument swing of tearing open can appear in the rescue in-process, because the contained angle of driving piece 2 and gripping member 1 is adjustable, can separate broken instrument pendulum power of tearing open and the power of operation gripping member 1, prevent that rescue personnel from being injured at the rescue in-process.

In the present embodiment, the power mechanism is hydraulically driven. Of course, in other embodiments, the power mechanism may be driven by other means, such as air pressure, etc., and the present application is not limited thereto.

In this embodiment, the driving member 2 includes an oil cylinder, and the oil cylinder is used to provide power for the rescue work head 22. The power transmission portion includes an oil supply passage and an oil return passage (not shown) provided in the grip 1. The oil supply channel and the oil return channel both extend to the connecting oil cylinder.

Specifically, the cylinder may include an oil inlet hole, an oil outlet hole, and an inner chamber (not shown) for receiving liquid. The oil inlet hole and the oil outlet hole are communicated with the inner cavity. The outlet of the oil supply channel is communicated with the oil inlet hole, the inlet of the oil return channel is communicated with the oil outlet hole, and the joint of the outlet of the oil supply channel and the oil inlet hole and the joint of the inlet of the oil return channel and the oil outlet hole are provided with sealing pieces, so that liquid can flow in the oil supply channel, the oil cylinder and the oil return channel and cannot leak out.

In one embodiment, as shown in fig. 1, the grip 1 includes a connecting portion 3 and a limit switch 4. The limit switch 4 is rotatably installed on the connecting part 3, and the oil cylinder is pivotally connected to the connecting part 3. The oil cylinder is provided with a locking groove 5, and the limit switch 4 is rotationally buckled in the locking groove 5 or separated from the locking groove 5. When the limit switch 4 is buckled in the locking groove 5, the driving piece 2 and the holding piece 1 can be relatively fixed; when the limit switch 4 is disengaged from the locking groove 5, the included angle between the driving member 2 and the holding member 1 is adjustable, i.e. the driving member 2 can rotate relative to the holding member 1.

Specifically, the locking grooves 5 are distributed along the circumferential direction of the cylinder pivot shaft. The connecting part 3 is provided with an arc-shaped through hole surrounding the pivot shaft. The limit switch 4 comprises a first telescopic limit part 6, the first limit part 6 penetrates through the arc-shaped through hole, and the first limit part 6 is rotatably buckled in the locking groove 5 or separated from the locking groove 5. The arc-shaped through hole is preferably a circular through hole.

More specifically, as shown in fig. 3, the limit switch 4 is further provided with a mounting groove 7. As shown in fig. 4, the first position-limiting portion 6 includes a spring 8 and a locking column or a steel ball 9 connected to the spring 8. The mounting groove 7 is located on one surface of the limit switch 4 facing the connecting part 3. The spring 8 is positioned in the mounting groove 7 or is abutted against the plane of the limit switch 4 facing the connecting part 3. The clamping column or the steel ball 9 can be rotationally clamped in the locking groove 5 or separated from the locking groove 5.

When the relative position of the driving part 2 and the holding part 1 needs to be adjusted, the limit switch 4 is rotated to enable the spring 8 to be positioned in the mounting groove 7, and at the moment, the clamping column or the steel ball 9 can be separated from the locking groove 5 along with the rotation of the connecting part 3; when the relative position of the driving element 2 and the holding element 1 is determined, the limit switch 4 is rotated again, the spring 8 is abutted against the plane of the limit switch 4 facing the connecting part 3, the clamping column or the steel ball 9 is clamped in the locking groove 5, and the driving element 2 and the holding element 1 can be kept relatively fixed.

In another embodiment, the grip 1 comprises a connecting portion 3. As shown in fig. 2, the connecting portion 3 is provided with a receiving groove 10 having a U-shape. The driving member 2 is pivotally connected to the connecting portion 3, and one end of the driving member 2 can be pivoted to or moved out of the accommodating groove 10, so that the length of the power mechanism can be reduced.

In this embodiment, a swivel joint 11 may be pivotally mounted in the receiving groove 10. As shown in fig. 5, the rotary joint 11 is provided with a fixing hole 12, and the driving member 2 and the rotary joint 11 can be fixed by a fastener provided in the fixing hole 12. The driver 2 is pivotally connected to the connecting portion 3 by a swivel joint 11.

Further, as shown in fig. 1, the driver 2 has opposite first and second ends 13, 14. The rescue work head 22 is connected to the first end 13, the pivotal connection of the driving member 2 and the connecting portion 3 is located between the first end 13 and the second end 14, and the distance from the pivotal connection to the first end 13 is smaller than the distance from the pivotal connection to the second end 14. Because the first end 13 is connected with the rescue working head 22, the position of the pivot joint is closer to the first end 13, so that the weight distribution of the demolition tool is more uniform, and the labor can be saved for a user.

In a preferred embodiment, the pivotal connection between the driver 2 and the connecting portion 3 is at the first end 13 of the driver 2, and the driver 2 can be fully received in the receiving slot 10.

In this embodiment, as shown in fig. 2, the connecting portion 3 further includes a first arm 15 and a second arm 16 which are oppositely disposed. The first arm 15 and the second arm 16 define a receiving channel 10 therebetween, and the driving member 2 is held between the first arm 15 and the second arm 16 and pivotally mounted to the first arm 15 and the second arm 16.

Specifically, the oil supply passage is provided in the first arm 15, and the oil return passage is provided in the second arm 16. The first arm 15 and the second arm 16 are provided with lightening holes 17, so that material can be saved and the weight of the power mechanism can be further reduced.

In this embodiment, there are two rotary joints 11 pivotally connected to the first arm 15 and the second arm 16, respectively. Each rotary joint 11 is provided with a first through hole (not shown), and the oil supply passage and the oil return passage are respectively communicated with the oil cylinder through the first through hole.

Specifically, the power mechanism further comprises a limit switch 4. The limit switch 4 is rotatably mounted on the connecting portion 3. As shown in fig. 1, a part of the rotary joint 11 is located between the connection portion 3 and the limit switch 4. As shown in fig. 2, a locking groove 5 is formed on a surface of the connecting portion 3 facing the limit switch 4, and the limit switch 4 is rotatably fastened to the locking groove 5 or separated from the locking groove 5. When the limit switch 4 is buckled in the locking groove 5, the driving piece 2 and the holding piece 1 can be relatively fixed; when the limit switch 4 is disengaged from the locking groove 5, the included angle between the driving member 2 and the holding member 1 is adjustable, i.e. the driving member 2 can rotate relative to the holding member 1.

More specifically, as shown in fig. 2, the connecting portion 3 is provided with a pivot hole 18 communicating with the receiving groove 10, and the rotary joint 11 is pivotally mounted in the pivot hole 18. A plurality of locking grooves 5 are distributed along the circumference of the pivot axis of the connecting portion 3. The limit switch 4 covers the pivot hole 18. The limit switch 4 comprises a first telescopic limit part 6, and the first limit part 6 is rotatably buckled in the locking groove 5 or separated from the locking groove 5. As shown in fig. 5, the rotary joint 11 is provided with a second through hole 19 through which the first stopper portion 6 passes.

Preferably, there are two limit switches 4 and two pivot holes 18, and the two pivot holes 18 are respectively disposed on two opposite groove walls of the receiving groove 10. I.e. two pivot holes 18 are provided in the first arm 15 and the second arm 16, respectively.

In this embodiment, as shown in fig. 3, the limit switch 4 is further provided with a mounting groove 7. As shown in fig. 4, the first position-limiting portion 6 includes a spring 8 and a locking column or a steel ball 9 connected to the spring 8. The mounting groove 7 is positioned on one surface of the limit switch 4 facing the rotary joint 11. The spring 8 is positioned in the mounting groove 7 or is abutted against the plane of the limit switch 4 facing the connecting part 3. The clamping column or the steel ball 9 can be rotationally clamped in the locking groove 5 or separated from the locking groove 5.

When the relative position of the driving part 2 and the holding part 1 needs to be adjusted, the limit switch 4 is rotated to enable the spring 8 to be positioned in the mounting groove 7, and at the moment, the clamping column or the steel ball 9 can be separated from the locking groove 5 along with the rotation of the connecting part 3; when the relative position of the driving element 2 and the holding element 1 is determined, the limit switch 4 is rotated again, the spring 8 is abutted against the plane of the limit switch 4 facing the connecting part 3, the clamping column or the steel ball 9 is clamped in the locking groove 5, and the driving element 2 and the holding element 1 can be kept relatively fixed.

In the present embodiment, the connecting portion 3 may be provided with a second stopper portion (not shown), and the driving member 2 may be provided with a third stopper portion (not shown). The third limiting part can be matched with the second limiting part, so that the included angle formed by the driving part 2 rotating relative to the connecting part 3 is smaller than or equal to a preset value, the driving part 2 can rotate relative to the holding part 1, meanwhile, the rescue working head 22 and the holding part 1 can be prevented from colliding, and the operation safety is ensured.

In a specific embodiment, the rotation angle of the driving member 2 relative to the connecting portion 3 is less than or equal to 260 °, and the rotation angle of the driving member 2 relative to the connecting portion 3 is symmetrical about the axis of the grip 1.

In the present embodiment, as shown in fig. 1, the grip 1 further includes a hand-held portion 20 for being held by a human hand. The outer surface of the hand-held part 20 is provided with raised patterns, so that the friction between a human hand and the holding piece 1 can be increased, and the holding by the human hand is facilitated. Meanwhile, the rescue working head 22 can be controlled to open or close by rotating the hand-held part 20.

Further, as shown in fig. 1, the grip 1 further includes a joint 21 connected to the power transmission portion. The connector 21 is adapted to externally connect an energy supply. The energy supply may be a hydraulic power source. The hydraulic power source and the connector 21 may be connected by hydraulic tubing. The hydraulic power source conveys liquid to the joint 21 through a hydraulic oil pipe, and then the liquid can enter the oil supply channel and then enter the oil cylinder, so that power is provided for the rescue working head 22. The joint 21 is located at one end of the handle 20, and the other end of the handle 20 is connected to the connecting part 3.

Please refer to fig. 6 to 9. The embodiment of the application also provides a breaking-in tool, which comprises a power mechanism and a rescue working head 22.

The power mechanism may be the power mechanism in any of the above embodiments. Rescue work head 22 is pivotally connected to drive member 2 of the power mechanism. The rescue working head 22 can rotate 360 degrees around the axis of the driving piece 2, so as to correspond to different rescue environments.

In this embodiment, the embodiment of the breaking tool corresponds to the embodiment of the power mechanism, which can achieve the technical problems solved by the embodiment of the power mechanism, and accordingly achieves the technical effects of the embodiment of the power mechanism, and detailed descriptions of this application are omitted here.

In the present embodiment, as shown in fig. 6 to 9, the rescue work head 22 may be one or more of a shearing breaking and dismantling work head 23, a shearing expanding breaking and dismantling work head 24, an expanding breaking and dismantling work head 25, or a supporting breaking and dismantling work head 26.

The embodiment of the application also provides a breaking-in system, which comprises the breaking-in tool. The break-in system may further comprise an energy supply. The energy supply may be a hydraulic power source. The hydraulic power source and the breaking-in tool can be connected through a hydraulic oil pipe.

In this embodiment, the embodiment of the breaking-in tool corresponds to the embodiment of the breaking-in tool described above, which can achieve the technical problem solved by the embodiment of the breaking-in tool, and accordingly achieves the technical effect of the embodiment of the breaking-in tool, and specific details of this application are not repeated herein.

It should be noted that, in the description of the present specification, the terms "first", "second", and the like are used for descriptive purposes only and for distinguishing similar objects, and no order is present therebetween, and no indication or suggestion of relative importance is to be made. Further, in the description of the present specification, "a plurality" means two or more unless otherwise specified.

The use of the terms "comprising" or "including" to describe combinations of elements, components, or steps herein also contemplates embodiments that consist essentially of such elements, components, or steps. By using the term "may" herein, it is intended to indicate that any of the described attributes that "may" include are optional.

A plurality of elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step may be divided into separate plural elements, components, parts or steps. The disclosure of "a" or "an" to describe an element, ingredient, component or step is not intended to foreclose other elements, ingredients, components or steps.

The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.