CN211415037U - Rescue tool and power device thereof - Google Patents

Abstract

The application provides rescue instrument and power device thereof speedily carries out rescue work, and wherein power device includes: casing, fuel feeding unit. A sealed cavity is arranged in the shell, and a first oil way connector and a second oil way connector are arranged on the outer wall of the shell. The oil supply assembly is arranged in the sealed cavity, is respectively connected with the first oil way interface and the second oil way interface, can be switched between a first working state and a second working state at least, and further is matched with the first oil way interface and the second oil way interface to form two mutually-reversed oil way circulation. Through the mode, the working efficiency of the power device can be effectively improved.

Description

Rescue tool and power device thereof

Technical Field

The application relates to the field of rescue equipment, in particular to an emergency rescue tool based on a hydraulic working principle and a power device thereof.

Background

The expander, the shears, the jacking device and the like are powerful equipment in emergency rescue tools, wherein the shears are used for breaking and dismantling tools; the dilator is a tool for moving, lifting obstacles and prying open the channel; the jack is a tool for supporting a heavy object. Because the shears, the expanders and the lifters have the characteristic of being convenient to carry, the shears, the expanders and the lifters become the first equipment for emergency rescue. The existing emergency rescue tool has lower working efficiency, so that the emergency rescue efficiency is low.

SUMMERY OF THE UTILITY MODEL

The main technical problem who solves of this application provides rescue instrument and power device speedily carrying out rescue work, can effectively improve work efficiency.

In order to solve the technical problem, the application adopts a technical scheme that: a power device applied to an emergency rescue tool comprises: casing, fuel feeding unit. A sealed cavity is arranged in the shell, and a first oil way connector and a second oil way connector are arranged on the outer wall of the shell. The oil supply assembly is arranged in the sealed cavity, is respectively connected with the first oil way interface and the second oil way interface, can be switched between a first working state and a second working state at least, and further is matched with the first oil way interface and the second oil way interface to form two mutually-reversed oil way circulation.

In order to solve the above technical problem, another technical solution adopted by the present application is: the utility model provides a rescue tool for emergency, including the pneumatic cylinder, action part and foretell power device, wherein the pneumatic cylinder includes pneumatic cylinder main part and piston, be equipped with the hydraulic pressure chamber in the pneumatic cylinder main part, the piston sets up in the hydraulic pressure intracavity, and separate into first sub hydraulic pressure chamber and the sub hydraulic pressure chamber of second with the hydraulic pressure chamber, first oil circuit interface and second oil circuit interface are connected with first sub hydraulic pressure chamber and the sub hydraulic pressure chamber of second respectively, action part connects the piston, and then carry out each other at first operating condition and second operating condition respectively and under the drive of piston and be reverse action.

Compared with the prior art, the beneficial effects of this application are: be different from among the prior art, can switch between first operating condition and second operating condition at least through setting up oil supply unit, and then form two kinds of oil circuit circulations that are each other opposite with first oil circuit interface and the cooperation of second oil circuit interface on the casing, so can realize the two-way motion of piston, and then can improve power device's work efficiency.

Drawings

FIG. 1 is a schematic structural view of an embodiment of the present invention;

FIG. 2 is a schematic structural view of an embodiment of the expander of the present application;

FIG. 3 is a schematic structural diagram of an embodiment of a jack of the present application;

FIG. 4 is a schematic structural diagram of a power device in an embodiment of a jacking device of the present application;

FIG. 5 is a schematic structural view of a second end cover in a jack embodiment of the present application;

fig. 6 is a schematic diagram of a power plant in an embodiment of the present application.

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.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Through long-term research of the inventor of the application, the existing emergency rescue equipment has the advantages that the piston can only move forwards when the equipment works every time, oil drainage needs to be performed manually after one working task is completed, and the emergency rescue efficiency is low. In order to solve the above technical problems, the inventors have long developed the following embodiments.

Referring to fig. 1 to 3, the present embodiment may provide an emergency rescue tool 1, where the emergency rescue tool 1 may be a cutter 1a, an expander 1b, or a jack 1c, and the emergency rescue tool 1 may include an action part 11, a hydraulic cylinder 12, and a power device 13. Of course, the rescue tool 1 can also comprise a handle 14 for supporting the hydraulic cylinder 12 and the action part 11, the handle 14 is provided with a button 15 for switching, and the power device 13 is connected to the hydraulic cylinder 12 through a pipeline. The push button 15 may be used to control the power unit 13 to perform a corresponding switching operation.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention. For the emergency rescue tool 1 to be a cutter 1a, the action part 11 may be a cutting head 11 a. The cutting head 11a is used to cut the article. For example, the cutting head 11a may be used to cut the reinforcing bars. The cutting head 11a may be a removable carbide tip. The hydraulic cylinder 12 is used to drive the cutting head 11a to open and close. The power unit 13 is used to provide two opposite oil circuit circulations to the hydraulic cylinder 12.

In order to facilitate the holding of the trimmer 1a by the operator, a first handle may be provided in the middle of the trimmer 1 a. A handle 14 may be provided at the rear of the cutter 1 a. The first handle may be a U-shaped handle. The two ends of the U-shaped handle can be fixed to the support arms extending from the hydraulic cylinder 12 in the direction perpendicular to the length of the cutter 1a, and a gap is formed between the middle of the U-shaped handle and the hydraulic cylinder 12, through which fingers can pass, so that the hand can be held by the U-shaped handle. A dust cap may be provided to reduce dust falling into the piston.

If the cutting means 1a is to be used in water, it may be provided with a floating member to facilitate the use of the cutting means 1a in water. For example, the floating piece is connected with the shears 1a through the hauling rope, the floating piece can float on the water surface, the weight of the shears 1a in the water can be balanced through the hauling rope, and then the shears 1a can float in the water, so that the sheared objects can be sheared conveniently.

In order to be able to improve the adaptation of the cutting member 1a to the aquatic environment, the cutting member 1a may be provided with a corresponding waterproofing arrangement, such as a waterproof gasket or other waterproofing means for the interface between the hydraulic cylinder 12 and the power unit 13. Of course, other interfaces, gaps, and the like of the cutter 1a may be subjected to waterproofing.

Fig. 2 is a schematic structural view of an embodiment of the dilator of the present application. For the emergency rescue tool 1 being a spreader 1b, the actuation part 11 may be a spreading head 11 b. The expansion head 11b may be used to pry apart an object. The expansion head 11b may be a removable carbide expansion head 11 b. The hard alloy can be carbide, nitride or boride of IVB, VB or VIB metals. The hydraulic cylinder 12 is used to drive the expansion head 11b to open and close. The power plant is used to provide two opposite oil circuit circulations to the hydraulic cylinder 12.

In order to facilitate the holding of the dilator 1b by the operator, a first handle may be provided in the middle of the dilator 1 b. A handle 14 may be provided at the tail of the dilator 1 b. A dust cover may be provided to reduce dust falling into the interior. The first handle (not labeled) may include a vertical bar perpendicular to the length of the dilator 1b and a horizontal bar parallel to the horizontal. The horizontal rods and the vertical rods can be connected in a vertical bending mode. The horizontal rod can be a U-shaped bending pipe which is bent towards the direction of the expansion head 11b, and two ends of the U-shaped bending pipe are perpendicularly connected with the vertical rod in a bending mode. Because the horizontal rod is bent towards the direction of the expansion head 11b, the distance between the first handle and the handle 14 is increased, so that the included angle between the two arms of the worker holding the expander 1b is increased, and the worker can apply greater force towards the direction of the expansion head 11b when holding the expander 1b for work.

The expander 1b can also be used with a floating member if it is desired to be used in water. For example, the floating piece is connected with the expander 1b through the traction rope, the floating piece can float on the water surface, the weight of the expander 1b in the water can be balanced through the traction rope, the expander 1b can float in the water, and the expanded object can be conveniently expanded.

In order to improve the adaptability of the expander 1b to the underwater environment, the expander 1b may be provided with a corresponding waterproof device, such as a waterproof gasket or other waterproof means for the interface between the hydraulic cylinder 12 and the power unit 13. Of course, other interfaces, gaps, etc. of the dilator 1b may also be waterproofed.

Fig. 3 is a schematic structural diagram of an embodiment of a jacking device of the application. For the rescue tool 1 being a jack 1c, the action part 11 may be a movable support 11 c. The hydraulic cylinder 12 is used for driving the telescopic mechanism 11c to extend and contract. The power unit 13 is used to provide two opposite oil circuit circulations to the hydraulic cylinder 12.

For the convenience of supporting, the movable supporting body 11c may be made of detachable hard alloy, and a fixed supporting body may be provided at the end of the jack 1 c. The fixed support body can also be a detachable hard alloy fixed support body, so that the tail end of the jacking device 1c is not easy to wear. In order to facilitate the operator to hold the jack 1c, a handle may be disposed in the middle of the jack 1c, and a handle 14 may be disposed at one end of the jack 1c close to the movable support 11 c. Handles and grips 14 may be provided on opposite sides of the cylinder 12. The handle 14 may be oriented perpendicular to the length of the cylinder 12 and the grip may be oriented parallel to the length of the cylinder 12. Like this, because the handle is located the both sides that pneumatic cylinder 12 carried on the back mutually with handle 14, be convenient for hold, behind jack 1c support column heavy object, need rotatory jack 1c, when needing to look for suitable support position, be convenient for rotate jack 1 c.

The jack 1c can also be used with a floating member if it is to be used in water. For example, the floating piece is connected with the jacking device 1c through a hauling rope, the floating piece can float on the water surface, the weight of the jacking device 1c in the water can be balanced through the hauling rope, the jacking device 1c can float in the water, and the jacking device is convenient to expand and treat a jacked object.

In order to improve the adaptability of the jack 1c to the underwater environment, the jack 1c may be provided with a corresponding waterproof device, for example, a waterproof gasket or other waterproof means is provided at the interface of the hydraulic cylinder 12 connected to the power device 13 for waterproof treatment. Of course, other interfaces, gaps, and the like of the jack 1c may be subjected to waterproofing.

Referring to fig. 6, for the hydraulic cylinder 12, the hydraulic cylinder 12 may include a cylinder body 121 and a piston 122. A hydraulic chamber 1210 is provided in the cylinder main body 121. The piston 122 is disposed in the hydraulic pressure chamber 1210, and divides the hydraulic pressure chamber 1210 into a first sub-hydraulic pressure chamber 1211 and a second sub-hydraulic pressure chamber 1212. The acting component 11 can be connected with the piston 122, so that the piston 122 drives the acting component 11 to perform corresponding action under the driving of the power device 13.

Referring to fig. 4, the power device 13 of the present embodiment may include a housing 131 and an oil supply unit 132. A sealed chamber 133 is arranged in the housing 131, and a first oil passage port C and a second oil passage port D are arranged on the outer wall of the housing 131. The oil supply assembly 132 is disposed in the sealed cavity 133, and is connected to the first oil path connector C and the second oil path connector D, and can be switched between at least a first operating state and a second operating state, so as to cooperate with the first oil path connector C and the second oil path connector D to form two opposite oil path circulations.

For example, in a first operating state, the first oil passage port C is used for oil inlet, and the second oil passage port D is used for oil outlet. Conversely, in the second operating state, the second oil passage interface D is used for oil inlet, and the first oil passage interface C is used for oil outlet. The oil supply assembly 132 can form two opposite oil circuit circulations in the at least two operating states.

The first and second oil ports C and D are connected to the first and second sub-hydraulic chambers 1211 and 1212, respectively. As shown in fig. 1 to 3, the first sub-hydraulic chamber 1211 may have a first oil delivery port E, and the second sub-hydraulic chamber 1212 may have a second oil delivery port F, which are used to communicate with the first oil port C and the second oil port D.

For example, the first oil passage port C communicates with the first sub-hydraulic chamber 1211, and the second oil passage port D communicates with the second sub-hydraulic chamber 1212. When under first operating condition, first oil circuit interface C oil feed makes piston 122 remove toward the direction of the hydraulic pressure chamber 1212 of second son owing to the existence of oil pressure, and then compresses the hydraulic pressure chamber 1212 of second son for the oil in the hydraulic pressure chamber 1212 of second son flows out through second oil circuit interface D, circulates as an oil circuit. In the second operating state, the second oil port D is filled with oil, and the piston 122 moves toward the first sub-hydraulic chamber 1211 due to the existence of the oil pressure, so as to compress the first sub-hydraulic chamber 1211, and the oil in the first sub-hydraulic chamber 1211 flows out through the first oil port C and circulates as another oil path. The piston 122 moves in the first operating state and the second operating state in opposite directions to each other, and can drive the operating member 11 to operate in opposite directions to each other. Of course, the first oil port C may communicate with the second sub-hydraulic chamber 1212, and the second oil port D may communicate with the first sub-hydraulic chamber 1211.

For example, in the shearing device 1a, the piston 122 moves in the first operating state and the second operating state in opposite directions, and the piston rod 123 of the piston 122 also moves in opposite directions, thereby driving the shearing head 11a to perform the shearing operation or open. For example, in the expander 1b, the piston 122 moves in the first operating state and the second operating state in the opposite directions, and the piston rod 123 of the piston 122 also moves in the opposite directions, thereby driving the expanding head 11b to perform the expanding or closing operation. For example, in the jack 1c, the piston 122 moves in the first operation state and the second operation state in opposite directions, and the piston rod 123 of the piston 122 also moves in opposite directions, thereby driving the movable support 11c to perform the telescopic operation.

Can switch between first operating condition and second operating condition at least through setting up oil supply unit 132, and then form two kinds of oil circuit circulations that are reverse each other with first oil circuit interface C and the cooperation of second oil circuit interface D on casing 131, so can realize the two-way motion of piston 122, and then can improve power device 13's work efficiency. In addition, the two-way movement of the piston 122 also enables automatic oil drainage of the first sub-hydraulic chamber 1211 and the second sub-hydraulic chamber 1212, which increases oil drainage efficiency.

Referring to fig. 4, the housing 131 may include a main housing 1311 disposed in a cylindrical shape, and a first end cap 1312 and a second end cap 1313 for closing both side open ends of the main housing 1311, and the first oil passage port C, the second oil passage port D, and the electrical port are disposed on the second end cap 1313.

A third oil passage port H and an electrical port J may be provided on an outer wall of the housing 131. Specifically, a third oil path interface H is disposed on the first end cap 1312, the third oil path interface H is used for providing hydraulic oil to the oil supply assembly 132, and the electrical interface J is connected to the oil supply assembly 132 and is used for supplying power to the oil supply assembly 132 and/or providing an external control command.

The housing 131 may be made of a high-strength light alloy, so that the oil supply unit 132 can withstand higher water pressure and reduce the overall weight of the cutting unit 1a when the emergency rescue apparatus is operated underwater. The high-strength light alloy is aluminum alloy or titanium alloy. The surface of the housing 131 may be subjected to rust prevention treatment. For example, a protective layer may be applied to the surface of the housing 131 to isolate the housing 131 from the surrounding corrosive medium, thereby preventing corrosion. The protective layer may be a metal that is not easily corroded coated on the surface of the case 131. The surface of the housing 131 may be covered with a corrosion-resistant non-metallic material. For example, the non-metallic material is plastic.

Referring to fig. 4, the oil supply unit 132 may include an oil tank 1321, an electric pump 1322, a switching valve 1323, a battery unit 1324, and a control unit 1325.

The oil tank 1321 may be used to store hydraulic oil. The oil tank 1321 may be connected to the third oil passage port H on the case 131 to supply hydraulic oil into the oil tank 1321 through the third oil passage port H. The electric pump 1322 may be connected to the oil tank 1321. Referring to fig. 6, the switching valve 1323 may be provided with an oil return port T, an oil inlet P, a first working port a, and a second working port B. The oil return port T is connected to the oil tank 1321. The oil inlet P is connected with an electric pump 1322. The first working port A is connected with the first oil way connector C, and the second working port B is connected with the second oil way connector D. When the switching valve 1323 is in the first operating state, the switching valve 1323 sends the hydraulic oil pumped by the electric pump 1322 to the first oil passage port C, and returns the hydraulic oil in the second oil passage port D to the oil tank 1321. When the switching valve 1323 is in the second operation state, the switching valve 1323 sends the hydraulic oil pumped by the electric pump 1322 to the second oil passage port D, and returns the hydraulic oil in the first oil passage port C to the oil tank 1321.

Battery assembly 1324 and/or control assembly 1325 may be coupled to electrical interface J to provide power to battery assembly 1324 and/or to provide external control commands to control assembly 1325 via electrical interface J. Battery assembly 1324 powers control assembly 1325, switching valve 1323, and electric pump 1322, and control assembly 1325 generates control signals for controlling switching valve 1323 and electric pump 1322, respectively, in response to external control commands. The control component 1325 may be provided with a wireless communication module that wirelessly obtains external control instructions. For example, the external control instruction of the terminal such as a computer, a notebook, a mobile phone, a tablet, etc. may be obtained, and the external control instruction may also be obtained from a cloud, etc., without limitation.

The switching valve 1323 may be provided with a third operation state in which, when the switching valve 1323 is in the third operation state, the switching valve 1323 short-circuits the oil return port T and the oil inlet P, so that the hydraulic oil pumped by the electric pump 1322 directly flows back to the oil tank 1321 without passing through the first oil passage port C and the second oil passage port D.

The switching valve 1323 in this embodiment may be a three-position four-way solenoid valve. The button on the handle of the emergency rescue tool 1 is used for controlling the switching valve 1323 to perform switching operation so as to perform corresponding switching in the first working state, the second working state and the third working state.

The three-position four-way electromagnetic valve can have at least three different working states according to different positions of a valve core of the electromagnetic valve. For example, the three-position four-way solenoid valve may be an "M" type three-position four-way solenoid valve, and the positions of the valve core of the solenoid valve may be a left position, a middle position, and a right position.

When the valve core of the electromagnetic valve is in the left position, the valve core can correspond to the first working state of the three-position four-way electromagnetic valve. At the moment, an oil inlet P in the three-position four-way electromagnetic valve is communicated with the first working port A, and an oil return port T is communicated with the second working port B, so that the shear 1a can form a first oil path circulation. When the valve core of the electromagnetic valve is in the right position, the second working state of the three-position four-way electromagnetic valve can be corresponded. At the moment, the oil inlet P in the three-position four-way electromagnetic valve is communicated with the second working port B, and the oil return port T is communicated with the first working port A, so that the shear 1a can form a second oil path circulation. When the valve core of the solenoid valve is in the middle position, the oil inlet P is communicated with the oil return hole, the first working port A and the second working port B are both closed, the piston 122 in the working cylinder body is in a fixed position and cannot move, and the three-position four-way solenoid valve is in a third working state at the moment.

If the power device 13 needs to be used in water, a floating bag can be wrapped on the surface of the power device 13, namely, the power device 13 is wrapped by the floating bag, so that the power device 13 can be used in water conveniently. The floating bag is, for example, cylindrically arranged. The floating package can float in water after wrapping the power device 13, so that the buoyancy of the power device 13 in water is increased, the weight of the power device 13 in water can be balanced, and the power device 13 can conveniently perform corresponding operation.

In order to improve the adaptability of the power unit 13 to the underwater environment, the cutter 1a may be provided with corresponding waterproofing, for example, waterproofing the housing 131, the first oil passage port C and the second oil passage port D, and the third oil passage port H and the electrical port J. Of course, other interfaces or parts can be subjected to waterproof treatment, so that the waterproof connector has better waterproof performance and is better suitable for underwater work.

In summary, the oil supply assembly 132 is configured to be switchable between at least a first operating state and a second operating state, and then cooperate with the first oil path connector C and the second oil path connector D on the casing 131 to form two opposite oil path circulations, so that the two-way movement of the piston 122 can be realized, and the operating efficiency of the power device 13 can be improved. In addition, the two-way movement of the piston 122 can also realize the automatic oil drainage of the first sub-hydraulic cavity 1211 and the second sub-hydraulic cavity 1212, so that the oil drainage efficiency is accelerated, and the working efficiency of the emergency rescue tool 1 is further improved.

The above embodiments are merely examples, and not intended to limit the scope of the present application, and all modifications, equivalents, and flow charts using the contents of the specification and drawings of the present application, or those directly or indirectly applied to other related arts, are included in the scope of the present application.

Claims (10)

1. A power device for an emergency rescue tool, the power device comprising:

the oil pump comprises a shell, wherein a sealed cavity is arranged in the shell, and a first oil way interface and a second oil way interface are arranged on the outer wall of the shell;

and the oil supply assembly is arranged in the sealed cavity, is respectively connected with the first oil way interface and the second oil way interface, can be switched between a first working state and a second working state at least, and further is matched with the first oil way interface and the second oil way interface to form two mutually-reversed oil way circulation.

2. The power plant of claim 1, wherein the oil supply assembly comprises:

the oil tank is used for storing hydraulic oil;

the electric pump is connected with the oil tank;

the switching valve is provided with an oil return port, an oil inlet, a first working port and a second working port, the oil return port is connected with the oil tank, the oil inlet is connected with the electric pump, the first working port is connected with the first oil path interface, the second working port is connected with the second oil path interface, when the switching valve is in the first working state, the switching valve conveys hydraulic oil pumped by the electric pump to the first oil path interface and enables hydraulic oil in the second oil path interface to flow back to the oil tank, and when the switching valve is in the second working state, the switching valve conveys hydraulic oil pumped by the electric pump to the second oil path interface and enables the hydraulic oil in the first oil path interface to flow back to the oil tank.

3. The power plant of claim 2, wherein the switching valve is further provided with a third operating state, wherein when the switching valve is in the third operating state, the switching valve short-circuits the oil return port and the oil inlet port, so that hydraulic oil pumped by the electric pump directly flows back to the oil tank without passing through the first oil passage port and the second oil passage port.

4. The power plant of claim 3, wherein the switching valve is a three-position, four-way solenoid valve.

5. The powerplant of claim 2, wherein the oil supply assembly further comprises a battery assembly and a control assembly, wherein the battery assembly powers the control assembly, the switching valve and the electric pump, and the control assembly generates control signals for controlling the switching valve and the electric pump, respectively, in accordance with external control commands.

6. The power plant of claim 5, wherein the control assembly is provided with a wireless communication module that wirelessly obtains the external control commands.

7. The power plant of claim 5, wherein a third oil interface and an electrical interface are further disposed on an outer wall of the housing, wherein the third oil interface is connected to the oil tank to provide hydraulic oil to the oil tank, and the electrical interface is connected to the battery assembly and/or the control assembly to supply power to the battery assembly and/or provide the external control command to the control assembly.

8. The power device according to claim 7, wherein the housing includes a main housing disposed in a cylindrical shape, and a first end cover and a second end cover for closing both open ends of the main housing, wherein the third oil passage H port is disposed on the first end cover, and the first oil passage port, the second oil passage port, and the electrical port are disposed on the second end cover.

9. An emergency rescue tool, characterized in that, the emergency rescue tool includes a hydraulic cylinder, an action component and the power device according to any one of claims 2-8, wherein the hydraulic cylinder includes a hydraulic cylinder main body and a piston, a hydraulic chamber is provided in the hydraulic cylinder main body, the piston is disposed in the hydraulic chamber and divides the hydraulic chamber into a first sub-hydraulic chamber and a second sub-hydraulic chamber, the first oil line interface and the second oil line interface are respectively connected with the first sub-hydraulic chamber and the second sub-hydraulic chamber, the action component is connected with the piston, and then the first working state and the second working state are driven by the piston to perform mutually opposite actions.

10. An emergency rescue tool according to claim 9, wherein the emergency rescue tool is a cutter, a spreader or a jack, wherein the emergency rescue tool further comprises a handle for supporting the hydraulic cylinder and the action member, the handle is provided with a button for controlling the switching valve to switch, and the power device is connected to the hydraulic cylinder by a pipeline.

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