CN209918754U - Charging type steel bar bender - Google Patents

Abstract

The utility model discloses a charging type steel bar bender, which comprises a bender main body and a storage battery, wherein the storage battery is arranged at the tail end of the bender main body, the bender main body comprises a cylinder body and an operating mechanism, a motor, a plunger pump assembly and a pushing assembly are sequentially arranged in the cylinder body, the pushing assembly comprises a pushing oil cavity, a pushing piston and a piston rod are arranged in the pushing oil cavity, the piston rod is connected with the control mechanism, an eccentric roller is arranged at the end part of a rotating shaft of the motor, the plunger pump component comprises a core shaft, a pump body is arranged corresponding to the core shaft, an oil inlet groove is arranged on the pump body, a guide hole matched with the core shaft is arranged at one side of the oil inlet groove, an extrusion cavity is arranged on the other side of the oil inlet groove and corresponds to the guide hole, a valve plate is arranged in the extrusion cavity, a pump oil hole is formed in the inner wall of the extrusion cavity and leads to the pushing oil cavity, a large spring is arranged between the valve plate and the mandrel, and a small spring is arranged between the valve plate and the bottom of the extrusion cavity. Thus, the technical effects of convenient operation and reliable structure are achieved.

Description

Charging type steel bar bender

Technical Field

The utility model relates to a crooked portable equipment of reinforcing bar, concretely relates to rechargeable angle bending machine.

Background

The patent of the Chinese patent publication No. CN 208288859 discloses a portable steel bar bender, which comprises a motor, a hydraulic part and an operation part, wherein the hydraulic part comprises a pump body, a plunger pump assembly, an oil inlet cavity, an oil outlet cavity and a piston rod are arranged in the pump body, an eccentric roller is arranged at the end part of a rotating shaft of the motor and pushes the plunger pump assembly, the plunger pump assembly absorbs oil from the oil inlet cavity and pumps pressure oil to the oil outlet cavity, the pressure oil pushes the piston rod to push forwards, the operation part comprises a base and a movable seat, the base is connected at the end part of the pump body, the piston rod penetrates through the base, the movable seat is connected at the end part of the piston rod, a blocking and connecting block with an isosceles triangle section is convexly arranged at the end part of the base, the end part of the blocking and connecting block facing the movable seat is in an arc shape, and a V-shaped bending groove is arranged on the movable seat facing the end surface of the blocking and connecting, the bottom of the bending groove is arc-shaped, the side walls on two sides of the bending groove are respectively in one-to-one correspondence and parallel with the waist surfaces on two sides of the blocking and connecting block, when the abutting blocks move into the bending groove relatively, V-shaped shaping grooves are formed at intervals, and supporting plates are respectively arranged below two sides of an opening of the bending groove.

The main drawbacks of the above structure are: the original motor is directly connected with the inserting plate through the electric wire, so that the inserting plate position must be approached during use, certain limitation is caused to the use environment of the steel bar bender, and the user cannot use the steel bar bender more conveniently.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide a rechargeable steel bar bender with convenient operation and reliable structure.

In order to achieve the above purpose, the utility model provides a following technical scheme: a rechargeable steel bar bender comprises a bender main body and a storage battery, wherein the storage battery is installed at the tail end of the bender main body, the bender main body comprises a cylinder body and an operating mechanism, a motor, a plunger pump assembly and a pushing assembly are sequentially arranged in the cylinder body, the pushing assembly comprises a pushing oil cavity, a pushing piston and a piston rod are installed in the pushing oil cavity, the piston rod is connected with the operating mechanism, an eccentric roller is arranged at the end part of a rotating shaft of the motor and drives the plunger pump assembly, the plunger pump assembly comprises more than two mandrels which are radially arranged, the end part of each mandrel is abutted against the peripheral surface of the eccentric roller, a pump body is arranged corresponding to the mandrels, an oil inlet groove is arranged on the pump body, a guide hole matched with the mandrels is formed in one side of the oil inlet groove, an extrusion cavity is formed in the other side of the oil inlet groove, and corresponds, the extrusion chamber in be equipped with the valve block, be equipped with the pump oilhole on the inner wall in extrusion chamber, the pump oilhole accesss to the propelling movement oil pocket, the valve block with the dabber between be equipped with big spring, the valve block with be equipped with little spring between the bottom in extrusion chamber.

The pushing piston is arranged at the tail end of the piston rod, a return spring is arranged between the pushing piston and the inside of the pushing oil cavity, and an overpressure protection mechanism is further arranged between the pushing piston and the piston rod.

The overvoltage protection mechanism comprises a first through hole formed in the pushing piston and a second through hole formed in the side wall of the piston rod, a pressing groove which is communicated with each other is formed between the first through hole and the second through hole, a steel ball seat is arranged in the pressing groove, a steel ball blocking the first through hole is arranged on the steel ball seat, and a pressing spring is arranged between the steel ball seat and the bottom of the pressing groove.

The operating mechanism comprises a bending seat and a fixed seat, the fixed seat is fixedly installed on the cylinder body, and the bending seat is connected to the end part of the piston rod.

The utility model discloses a this kind of structure, the battery after will charging gives the motor power supply, has greatly made things convenient for carrying and work of angle bending machine, and the motor can drive plunger pump subassembly through the back and give the interior fuel feeding of propelling movement oil cavity, and drive propelling movement subassembly realizes the operation of crooked reinforcing bar for operating mechanism, has improved the reliability and the stability of work, makes the structure more reliable, has just so realized convenient operation and the reliable technological effect of structure.

The invention is further described with reference to the accompanying drawings and the detailed description.

Drawings

FIG. 1 is a block diagram of an embodiment of the present invention;

FIG. 2 is a cross-sectional view of an embodiment of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

fig. 4 is an enlarged view at B in fig. 2.

Detailed Description

As shown in fig. 1-4, the utility model discloses a rechargeable steel bar bender, including bender main body 1 and battery 2, battery 2 is installed at the tail end of bender main body 1 and is formed the structure of rifle and dispose switch 10, bender main body 1 includes cylinder body 3 and operating mechanism 4, motor 5, plunger pump subassembly 6 and propelling movement subassembly 7 are equipped with in proper order in cylinder body 3, propelling movement subassembly 7 includes the propelling movement oil pocket, install propelling movement piston 72 and piston rod 73 in the propelling movement oil pocket, piston rod 73 is connected with operating mechanism 4, the pivot tip of motor 5 sets up eccentric gyro wheel 8, eccentric gyro wheel 8 drives plunger pump subassembly 6, plunger pump subassembly 6 includes four dabber 61 that radially set up, dabber 61 disposes more than two in fact, dabber 61 tip butt is on eccentric gyro wheel 8 global, it is equipped with pump body 62 to correspond dabber 61, be equipped with the oil feed tank on pump body 621, oil enters from the oil inlet groove 621, a guide hole 622 matched with the mandrel 61 is formed in one side of the oil inlet groove 621, the mandrel 61 is arranged in the guide hole 622, an extrusion cavity 623 is formed in the other side of the oil inlet groove 621, the extrusion cavity 623 corresponds to the guide hole 622, a valve plate 63 is arranged in the extrusion cavity 623, a pump oil hole (not shown in the figure) is formed in the inner wall of the extrusion cavity 623, the pump oil hole leads to a pushing oil cavity, a large spring 64 is arranged between the valve plate 63 and the mandrel 61, and a small spring 65 is arranged between the valve plate 63 and the bottom of the extrusion cavity 623.

As shown in fig. 4, the pushing piston 72 is disposed at the tail end of the piston rod 73, a return spring 74 is disposed between the pushing piston 72 and the inside of the pushing oil chamber, an overpressure protection mechanism 9 is further disposed between the pushing piston 72 and the piston rod 73, the overpressure protection mechanism 9 includes a first through hole 91 disposed on the pushing piston 72 and a second through hole 92 disposed on the side wall of the piston rod 73, a pressing groove 93 is disposed between the first through hole 91 and the second through hole 92, a steel ball seat 94 is disposed in the pressing groove 93, a steel ball 96 for blocking the first through hole 91 is disposed on the steel ball seat 94, and a pressing spring 95 is disposed between the steel ball seat 94 and the bottom of the pressing groove 93. The overpressure protection can realize the overlarge oil pressure, thereby protecting the reliability of each part and prolonging the service life.

The operating mechanism 4 comprises a bending seat 41 and a fixed seat 42, the fixed seat 42 is fixedly installed on the cylinder body 3, and the bending seat 41 is connected to the end of the piston rod 73. This makes the handling more convenient and reliable.

Through foretell technical scheme, battery 2 after will charging gives 5 power supplies of motor, has greatly made things convenient for carrying and work of angle bending machine, and motor 5 can drive plunger pump subassembly 6 through the back and supply oil for propelling movement oil intracavity, and drive propelling movement subassembly 7 realizes the operation of crooked reinforcing bar for operating mechanism 4, has improved the reliability and the stability of work, makes the structure more reliable, has just so realized convenient operation and the reliable technological effect of structure.

Claims (4)

1. A rechargeable angle bending machine which characterized in that: the bending machine comprises a bending machine main body and a storage battery, wherein the storage battery is arranged at the tail end of the bending machine main body, the bending machine main body comprises a cylinder body and an operating mechanism, a motor, a plunger pump assembly and a pushing assembly are sequentially arranged in the cylinder body, the pushing assembly comprises a pushing oil cavity, a pushing piston and a piston rod are arranged in the pushing oil cavity, the piston rod is connected with the operating mechanism, an eccentric roller is arranged at the end part of a rotating shaft of the motor and drives the plunger pump assembly, the plunger pump assembly comprises more than two mandrels which are radially arranged, the end part of each mandrel is abutted against the peripheral surface of the corresponding eccentric roller, a pump body is arranged corresponding to the mandrel, an oil inlet groove is arranged on the pump body, a guide hole matched with the mandrel is arranged on one side of the oil inlet groove, an extrusion cavity is arranged on the other side of the oil inlet groove and, the inner wall of the extrusion cavity is provided with a pump oil hole, the pump oil hole is communicated with the pushing oil cavity, a large spring is arranged between the valve block and the mandrel, and a small spring is arranged between the valve block and the bottom of the extrusion cavity.

2. The rechargeable steel bar bender according to claim 1, wherein: the pushing piston is arranged at the tail end of the piston rod, a return spring is arranged between the pushing piston and the inside of the pushing oil cavity, and an overpressure protection mechanism is further arranged between the pushing piston and the piston rod.

3. The rechargeable steel bar bender according to claim 2, wherein: the overvoltage protection mechanism comprises a first through hole formed in the pushing piston and a second through hole formed in the side wall of the piston rod, a pressing groove which is communicated with each other is formed between the first through hole and the second through hole, a steel ball seat is arranged in the pressing groove, a steel ball blocking the first through hole is arranged on the steel ball seat, and a pressing spring is arranged between the steel ball seat and the bottom of the pressing groove.

4. The rechargeable steel bar bender according to claim 1, wherein: the operating mechanism comprises a bending seat and a fixed seat, the fixed seat is fixedly installed on the cylinder body, and the bending seat is connected to the end part of the piston rod.

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