CN114031021A

CN114031021A - Electric crow bar

Info

Publication number: CN114031021A
Application number: CN202111585456.5A
Authority: CN
Inventors: 韦邦耸
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-02-11

Abstract

The invention discloses an electric crowbar, which comprises an impact ring electromagnetic coil and a worm motor, wherein an impact ring in the impact ring electromagnetic coil is acted by electromagnetic force, a high-speed and high-frequency impact expansion impact hook and an impact head are inserted into a target obstacle to be pried open, and the worm motor starts to provide rotary tension required for opening to realize two working modes of integrating impact and opening; the expansion right-angle hook needs to be lifted off from the gap surface, one end of the power clutch shifting piece is switched, and the worm motor works independently, so that the gap surface which is broken off or lifted off can be realized.

Description

Electric crow bar

Technical Field

The invention relates to the technical field of hardware tools, in particular to an electric impact and worm expansion crowbar.

Background

In engineering construction, when the steel bar is broken and disassembled, one end of the used crow bar is bent, the other end of the used crow bar is straight, the crow bar needs to be manually pulled to be opened when being pried, the crow bar needs to be inserted into a gap in a straight mode, strength is particularly consumed, the crow bar is fatigue after being used for a long time, and the working efficiency is low. Pneumatic and hydraulic with impact function are energy transmission media. The power capacity is large and light portable equipment is not convenient.

Disclosure of Invention

The invention provides an electric crowbar, which solves the problems of loss force and low efficiency.

The electric crowbar power has impact ring solenoid and worm motor to combine two kinds of effectual power integratively, has the impact force to have the expansion force simultaneously, accords with the working characteristic of two kinds of key elements of crowbar, can switch to solitary expansion force mode, accords with the lever working characteristic of crowbar.

The impact stroke and the reset stroke are adopted, the Hall sensor reads a signal of the impact stroke and transmits the signal to the circuit control module to control the on-off of a relay of the coil, the reset stroke automatically rebounds to the original position after the spring is compressed, and the impact stroke applies work to obtain high-frequency impact high-power impact kinetic energy.

The working current required by the electromagnetic coil of the impact ring is larger than the discharge multiple of a common battery, and the discharge multiple of the polymer battery accords with the butt joint of power technology. The high current has spark defect to the relay with common mechanical contact, and the semiconductor solid state relay has no mechanical contact to control the circuit to be closed or opened.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the prior art solutions, the drawings used for the description are briefly introduced.

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an expanded view of the opening and closing part structure of the invention.

FIG. 1: the device comprises an impact ring electromagnetic coil (1), a worm motor (2), a lithium battery pack (3), an expansion right-angle hook (4), a holding rod (5), an expansion impact hook (6) and an impact head (7).

Detailed Description

The wood working example, the mould of the frame building or the shear wall, the square timber and the template are disassembled under the reinforcement of the nail, the impact head is aligned with the gap, the impact mode is pressed, the worm motor is pressed to work after the depth reaches the opening part, the worm starts to push away the expanding piece 6, and the contact between the square timber and the template is jacked. The modules in the plane structure are contacted with the cement surface, and the right-angle hooks 4 can be replaced to pull apart.

The fireman is when the rescue is broken to tear open, and when two contact gap need be separately, the jack can't be placed, as long as will strike head 7 and put the gap and strike the opening, 6 backs down of expansion part, plays the operation of thick stick. Likewise, right angles may also lift the target obstacle.

In actual use, the capacity of the battery is limited, and the spare battery and the charger are continuously used for replacing the battery, so that the battery is used while being charged or a plurality of spare batteries are used, and the use efficiency is fully achieved.

The above-mentioned embodiments describe the technical solutions and advantageous effects of the present invention in detail. The above embodiments are not intended to limit the present invention, and equivalent variations are within the scope of the present invention.

Claims

1. Electronic crow bar, its characterized in that: the device comprises an impact ring electromagnetic coil (1), a worm motor (2), a lithium battery pack (3), an expansion right-angle hook (4), a holding rod (5), an expansion impact hook (6) and an impact head (7); one end of the electric crow bar is provided with an impact belt expansion, the other end of the electric crow bar is provided with a right-angle hook for hooking the expansion, and the power of the electric crow bar is provided with an impact ring electromagnetic coil (1) and a worm motor (2).

2. The power crowbar of claim 1, characterized in that: the power has two working modes of an impact ring electromagnetic coil (1) and a worm motor (2), when the working modes are simultaneously operated, an impact ring of an impact head (7) in the impact ring electromagnetic coil (1) is impacted by the action of electromagnetic force at high speed and high frequency, and the worm motor (2) is connected with a reduction gear to obtain a transmission shaft with large torque and is expanded and closed by a transmission expansion impact hook (6) in the impact ring.

3. The power crowbar of claim 2, characterized in that: and when the worm motor (2) is in a second working mode, a manual clutch shifting ring is arranged in a transmission shaft of the reduction gear and the expansion right-angle hook (4) and is arranged inside the holding rod (5), the clutch shifting ring is adjusted to the direction of the expansion right-angle hook (4), and the worm with the support leg piece and the right-angle hook piece rotates forwards and backwards to be unfolded and closed.

4. The power crowbar of claim 1, characterized in that: the power has inside impact ring solenoid (1) and has two strokes, impact stroke and reset stroke, and hall sensor reads the signal transmission of impact stroke and carries out on-off control for the relay of coil for circuit control module, and the reset stroke is at the automatic normal position that rebounds of spring compression, and the load voltage low current of coil is too big, and the powerful coil load of semiconductor solid state relay no spark effective control.

5. The power crowbar of claim 1, characterized in that: the lithium battery pack and the power device of holding rod (5) both sides are symmetrical, the effective distribution focus, and the lithium cell can be dismantled and changed, and two kinds of discharge batteries use mixedly, and the great polymer lithium cell of the multiple of discharging is joined in marriage to solenoid high power, and worm motor (2) power is less, only joins in marriage the stable lithium iron phosphate battery that discharges.