CN216966412U

CN216966412U - Scissors for steel structure

Info

Publication number: CN216966412U
Application number: CN202122544576.2U
Authority: CN
Inventors: 何忠花
Original assignee: Shanghai Ruihua House Demolition Engineering Co ltd
Current assignee: Shanghai Ruihua House Demolition Engineering Co ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-07-15
Anticipated expiration: 2031-10-22

Abstract

The utility model provides a pair of scissors for a steel structure, belonging to the technical field of hydraulic scissors, and comprising a hydraulic cylinder consisting of a piston, a handle, a cylinder barrel and the like; the side wall of the cylinder barrel is provided with a C-shaped frame; one end of the C-shaped frame, which is far away from the cylinder barrel, is provided with a fixed tool bit; the piston rod can stably move in the cylinder barrel, and the C-shaped frame is adopted for structural design, so that stacked steel rolled pieces are sheared in a plane combination mode between shearing edges, the phenomenon that the bundled pieces slide out outwards during shearing is effectively avoided, and the working efficiency of hydraulic shearing is improved; the mount pad can enough play the effect of accurate installation to the mounted position of cutting edge, ensures that the cutting edge is in the best shearing position and shears, also conveniently dismantles the change to the cutting edge simultaneously, cuts the high cost that whole change brought with the hydraulic pressure when having avoided the cutting edge to damage, has also improved the dismouting flexibility that the hydraulic pressure was cut to the device conveniently handheld shearing, simple structure easily carries easy operation.

Description

Scissors for steel structure

Technical Field

The utility model belongs to the technical field of hydraulic shears, and particularly relates to a pair of shears for a steel structure.

Background

The hydraulic shears are usually made of hot rolled steel, and the cutting edge of the hydraulic shears is forged by hot rolled steel, and the piston push rod are usually made of hot rolled alloy steel.

However, when the binding piece is sheared by the existing hydraulic shears, the binding piece is usually clamped and fixed by an upper and lower butt clamp structure, and the binding piece is easy to slide out from the shearing position of the hydraulic shears when being sheared due to the action of larger pressure on the binding piece during shearing, so that the binding piece cannot be accurately sheared, and the working efficiency of the hydraulic piece is reduced; present steel construction hydraulic pressure is cut in addition, and hydraulic component structure is complicated, and is great heavier, is unfavorable for the hand gripping to adjust to suitable angle and cut.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the technical problem to be solved by the embodiment of the utility model is to provide the scissors for the steel structure, which can effectively solve the problems that the normal operation of the subsequent work is influenced due to the fact that the scraps generated by the hardware processing are inconvenient to clean in time and the clamping is laborious during the hardware processing.

In order to solve the technical problems, the utility model provides the following technical scheme:

a pair of scissors for a steel structure comprises a piston, a handle and a cylinder barrel, wherein the handle is connected with a connecting rod through a pin shaft; the connecting rod is connected with a rear end cover; an oil inlet is formed in the side wall of the rear end cover; the top of the piston is provided with a nut; the nut is in threaded connection with the top of the piston; a first sealing ring is arranged on the side wall of the piston; the side wall of the piston is also provided with a first guide ring; the bottom of the piston is connected with a buffer device; the buffer device is a rubber ring; the piston is connected with a piston rod through a nut thread; the bottom of the cylinder barrel is connected with a piston rod sleeve; the bottom of the rear end cover is provided with a holding rod; the rear end cover is arranged at one end of the cylinder barrel; a front end cover is arranged at one end of the cylinder barrel, which is far away from the rear end cover; an oil return port is formed in the side wall of the front end cover; a flange is fixed at the bottom of the front end cover; a guide sleeve is arranged on the inner side of the flange; a mounting seat is arranged below the guide sleeve; the bottom of the mounting seat is provided with a cutter head frame; the tool bit frame is provided with a movable tool bit; a C-shaped frame is arranged on the side wall of the cylinder barrel; and a fixed cutter head is arranged at one end of the C-shaped frame, which is far away from the cylinder barrel.

As a further improvement of the utility model: the sections of the fixed cutter head and the movable cutter head are triangular.

As a further improvement of the utility model: the oil inlet and the oil return port are respectively in threaded connection with an oil inlet pipe and an oil return pipe.

As a further improvement of the utility model: and a dust ring and a guide ring II are arranged on the inner side of the guide sleeve.

As a further improvement of the utility model: the cylinder barrel is made of No. 45 steel.

Compared with the prior art, the utility model has the beneficial effects that: the piston rod can stably move in the cylinder barrel, and the C-shaped frame is adopted for structural design, so that stacked steel rolled pieces are sheared in a plane combination mode between shearing blades, the phenomenon that the binding piece slides outwards during shearing is effectively avoided, and the working efficiency of the hydraulic shear is improved; the mount pad can enough play the effect of accurate installation to the mounted position of cutting edge, ensures that the cutting edge is in the best shearing position and shears, also conveniently dismantles the change to the cutting edge simultaneously, cuts the high cost that whole change brought with the hydraulic pressure when having avoided the cutting edge to damage, has also improved the dismouting flexibility that the hydraulic pressure was cut to the device conveniently handheld shearing, simple structure easily carries easy operation.

Drawings

FIG. 1 is a schematic view of a pair of scissors for use in steel construction;

FIG. 2 is an enlarged view of a portion of the area A in FIG. 1;

FIG. 3 is an enlarged view of a portion of the area B in FIG. 1;

in the figure: 1-handle, 2-pin shaft, 3-, 4-C type frame, 5-mounting seat, 6-fixed cutter head, 7-movable cutter head, 8-cutter head frame, 9-holding rod, 10-connecting rod, 11-oil inlet, 12-guide ring I, 13-nut, 14-buffer device, 15-piston sealing ring, 16-rear end cover, 17-flange, 18-dust ring, 19-guide ring II, 20-front end cover, 21-oil return port, 22-piston, 23-piston rod sleeve, 24-guide sleeve, 25-oil inlet pipe, 26-oil return pipe and 27-piston rod.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Example 1

Referring to fig. 1-2, the present embodiment provides a pair of scissors for steel structure, including a piston 22, a handle 1 and a cylinder 3, wherein the cylinder 3 is made of 45 # steel; the handle 1 is connected with a connecting rod 10 through a pin shaft 2; the connecting rod 10 is connected with a rear end cover 16; an oil inlet 11 is formed in the side wall of the rear end cover 16; the top of the piston 22 is provided with a nut 13; a first sealing ring 15 is arranged on the side wall of the piston 22; a first guide ring 12 is further mounted on the side wall of the piston 22; the bottom of the piston 22 is connected with a buffer device 14; the buffer device is a rubber ring; the bottom of the piston 22 is connected with a piston rod 27 through a nut 13 in a threaded manner; the bottom of the cylinder barrel 3 is connected with a piston rod sleeve 23; the bottom of the rear end cover 16 is provided with a holding rod 9; the rear end cover 16 is arranged at one end of the cylinder barrel 3; a front end cover 20 is arranged at one end of the cylinder barrel 3 far away from the rear end cover 16; an oil return port 21 is formed in the side wall of the front end cover 20; the oil inlet 11 and the oil return port 21 are respectively in threaded connection with an oil inlet pipe 25 and an oil return pipe 26; a flange 17 is fixed at the bottom of the front end cover 20; a guide sleeve 24 is arranged on the inner side of the flange 17; the inner side of the guide sleeve 24 is provided with a dust ring 18 and a second guide ring 19.

When the device works, hydraulic oil is supplied to the oil inlet 11 on the rear end cover 16 through the oil inlet pipe 25, the piston rod 27 and the piston 22 which are arranged on the piston 22 through the nut 13 slide along the inner wall of the cylinder barrel 3 under the pushing of the hydraulic oil, and the first sealing ring 15 on the piston 22 prevents the oil from leaking; the first guide ring 12 can play a supporting role to prevent the piston 22 from shaking in the moving process; the buffer device at the bottom of the piston 22 buffers the vibration generated when the piston moves to the bottom end of the cylinder 3, so that the piston 22 and the cylinder 3 are prevented from being abraded; after the pushing is finished, injecting hydraulic oil from the oil return port 21; pushing the piston 22 in the opposite direction moves the retraction piston rod 27.

Example 2

Referring to fig. 1 and 3, in the present embodiment, compared with embodiment 1, a mounting seat 5 is disposed below the guide sleeve 24; the bottom of the mounting seat 5 is provided with a cutter head frame 8; the tool bit frame 8 is provided with a movable tool bit 7; a C-shaped frame 4 is arranged on the side wall of the cylinder barrel 3; a fixed cutter head 6 is arranged at one end of the C-shaped frame 4 far away from the cylinder barrel 3; the sections of the fixed cutter head 6 and the movable cutter head 7 are triangular.

When the device is used, the piston rod 27 in the hydraulic cylinder barrel 3 of the handle 1 is held by an operator to be pushed downwards under the driving of the piston 22, so that the mounting seat 5 arranged at the front end of the piston rod sleeve 23 and the tool bit frame 8 of the mounting seat 5 move downwards towards the direction of the fixed tool bit 6, the movable tool bit 7 arranged on the tool bit frame 8 approaches to the fixed tool bit 6, the cross sections of the fixed tool bit 6 and the movable tool bit 7 are triangular, the contact area with steel is smaller, and the steel is easier to cut off.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The scissors for the steel structure are characterized by comprising a piston (22), a handle (1) and a cylinder barrel (3), wherein the handle (1) is connected with a connecting rod (10) through a pin shaft (2); the connecting rod (10) is connected with a rear end cover (16); an oil inlet (11) is formed in the side wall of the rear end cover (16); the top of the piston (22) is provided with a nut (13); a first sealing ring (15) is mounted on the side wall of the piston (22); a first guide ring (12) is further mounted on the side wall of the piston (22); the bottom of the piston (22) is connected with a buffer device (14); the buffer device is a rubber ring; the piston (22) is connected with a piston rod (27) through a nut (13) in a threaded manner, and the bottom of the cylinder barrel (3) is connected with a piston rod sleeve (23); the bottom of the rear end cover (16) is provided with a holding rod (9); the rear end cover (16) is arranged at one end of the cylinder barrel (3); a front end cover (20) is arranged at one end of the cylinder barrel (3) far away from the rear end cover (16); an oil return opening (21) is formed in the side wall of the front end cover (20); a flange (17) is fixed at the bottom of the front end cover (20); a guide sleeve (24) is arranged on the inner side of the flange (17); a mounting seat (5) is arranged below the guide sleeve (24); the bottom of the mounting seat (5) is provided with a cutter head frame (8); the tool bit frame (8) is provided with a movable tool bit (7); a C-shaped frame (4) is mounted on the side wall of the cylinder barrel (3); and a fixed tool bit (6) is arranged at one end of the C-shaped frame (4) far away from the cylinder barrel (3).

2. A pair of scissors for steel structure according to claim 1, characterized in that the cross section of the fixed cutter head (6) and the movable cutter head (7) is triangular.

3. The scissors for steel structure of claim 2, wherein the oil inlet (11) and the oil return (21) are respectively connected with an oil inlet pipe (25) and an oil return pipe (26) by screw thread.

4. A pair of scissors for a steel structure according to claim 1 or 2, characterized in that a dust ring (18) and a second guide ring (19) are arranged inside the guide sleeve (24).

5. A pair of scissors for a steel structure according to claim 3, wherein the cylinder (3) is made of 45 steel.